CN-121650167-B - Hot-press forming equipment of racket

CN121650167BCN 121650167 BCN121650167 BCN 121650167BCN-121650167-B

Abstract

The invention relates to the technical field of plastic molding, in particular to hot press molding equipment for a badminton racket. When the device is operated, the prefabricated badminton racket is placed in the forming groove of the lower template, the die is pushed to enter the baking cavity, the upper template is blocked by the first guide surface of the baking cavity at the moment and is automatically turned downwards to realize die assembly, and then air is supplied to the prefabricated badminton racket through the air guide piece and the air receiving pipe by means of the high-temperature environment in the baking box and the air source, so that the prefabricated badminton racket uniformly expands and is attached to the die cavity, and a hot press forming process is formed. When the mold is pulled out of the baking cavity, the passive pin is blocked by the moving part and cannot synchronously move, the pushing sleeve of the pushing device is driven to be linked with the rotary groove column, the first elastic part drives the upper mold plate to automatically open the mold, and meanwhile, the molded badminton racket is ejected out, so that the mold is conveniently moved out and then taken out. The process does not need to manually move the upper template and does not need additional driving parts, and the die assembly, the die opening and the ejection are completed only through the push-pull action of the die, so that the manual operation efficiency can be improved, and the operation strength is reduced.

Inventors

CHEN GUOHUANG
CHEN HANQING
Chen Zenghuan

Assignees

石狮鸿兴文体器材股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260207

Claims (10)

1. A hot press molding apparatus for a badminton racket, the apparatus comprising: The baking oven is provided with a baking cavity, a first guide surface is arranged at the upper opening position of the baking cavity, and the first guide surface is outwards and upwards inclined from the interior of the baking cavity; The mould comprises an upper mould plate, a lower mould plate, a connecting rod and a first elastic piece, wherein the upper mould plate is hinged with the lower mould plate, the upper mould plate and the lower mould plate are provided with forming grooves, after the upper mould plate and the lower mould plate are assembled, the forming grooves of the upper mould plate and the forming grooves of the lower mould plate are correspondingly combined to form a cavity of a badminton racket, the side edge of the lower mould plate is connected with a sliding piece, the elastic acting force of the first elastic piece forms acting force for enabling the sliding piece to continuously move towards the pivoted position of the upper mould plate and the lower mould plate, and two ends of the connecting rod are pivoted with the upper mould plate and the sliding piece respectively; wherein the mold is adapted to be embedded within the toasting cavity and the lower die plate is constrained to slide against a lower surface of the toasting cavity; When the die moves out of the baking cavity, one end of the lower die plate is positioned in the baking cavity, and the first elastic piece drives the sliding piece to move to a position where the upper die plate and the lower die plate are pivoted, and drives the connecting rod to lift the upper die plate so as to open the die; When the die moves into the baking cavity, the upper die plate is blocked by the first guide surface and moves downwards into the baking cavity to be attached to the lower die plate, so that die assembly is realized.
2. The apparatus of claim 1 wherein a load-bearing portion is disposed at an end of the lower die plate opposite the outside of the baking chamber, the upper die plate being pivotally connected to the lower die plate at an end of the load-bearing portion adjacent the outside of the baking chamber, the load-bearing portion being disposed within the baking chamber after the upper die plate is moved out of the baking chamber and lifted upwardly.
3. The apparatus of claim 2, wherein a bar is fixed to a bottom surface of the carrying portion, a bar groove is provided to a bottom surface in the baking chamber, the bar groove is parallel to an inner and outer direction of the baking chamber, and the bar extends into the bar groove; When the upper template moves out of the baking cavity and is lifted upwards, the stop lever moves to abut against the side wall of the strip-shaped groove, which is close to one end outside the baking cavity.
4. A device according to claim 2 or 3, wherein the lower template is provided with a fixed rail on both sides of the bottom surface, said rail extending to the carrying portion, both rails being adapted to connect with a slider, said slider being fixed to the bottom surface of the baking chamber.
5. The apparatus of claim 1, further comprising an air guide and an air receiving tube, wherein the air guide has two ports, one of the ports of the air guide is connected to a port of a middle rod of the prefabricated badminton racket far away from the racket frame, the air receiving tube is arranged in the lower template, one end of the air receiving tube penetrates out of the lower template to be connected to an air source, the other end of the air receiving tube is connected with an elbow, the port of the elbow far away from one end of the air receiving tube is an air receiving hole, the air receiving hole faces upwards, and the other port of the air guide far away from the middle rod is correspondingly communicated with the air receiving hole after the prefabricated badminton racket is placed in the forming groove.
6. The apparatus of claim 5, wherein an air duct is fixed to the back of the oven at a position corresponding to the oven cavity, one end of the air duct is connected to an air source, the other end of the air duct extends into the lower die plate, one end of the air duct, which is far away from the elbow, penetrates into the air duct, and a sealing ring is assembled between the outer wall of the air duct and the inner wall of the air duct.
7. The apparatus of claim 1, further comprising a jacking device, the jacking device comprising: The fixing cylinder is fixed in the lower die plate, a first annular groove and a second annular groove are sequentially formed in the fixing cylinder along the axial direction of the fixing cylinder, a flat groove is formed between the first annular groove and the second annular groove, the axial directions of the flat groove and the fixing cylinder are parallel, two ends of the flat groove are respectively communicated with the first annular groove and the second annular groove, an embedded groove is formed in the fixing cylinder above the second annular groove, a first strip-shaped hole penetrating through the inside and the outside is formed in the bottom of the fixing cylinder, and the axial directions of the first strip-shaped hole and the fixing cylinder are parallel; the spiral groove column is provided with a concave spiral groove extending along the spiral line on the ring surface, one end of the spiral groove column is also provided with a limiting ring, and both radial sides of the limiting ring are provided with convex stop blocks; The pushing sleeve is externally fixed with a passive pin, the pushing sleeve is internally fixed with a limiting pin, and the limiting pin protrudes relative to the inner wall of the pushing sleeve; The ejector pin frame is blocked in the lower die plate by the fixed cylinder, the ejector pin frame is positioned in the embedded groove, an ejection hole is formed in the forming groove of the lower die plate, the ejector pin frame is provided with an ejector pin, and the ejector pin is adapted to penetrate into the ejection hole; The bottom surface in the baking cavity is provided with a sliding groove, the sliding groove is parallel to the inner and outer directions of the baking cavity, the limiting ring is adaptively embedded in the fixed cylinder to move, the stop block is adaptively penetrated through the flat groove to the first annular groove and the second annular groove, the pushing sleeve is adaptively matched with the outside of one end of the spiral groove arranged on the spiral groove column, the limiting pin is embedded in the spiral groove in a clearance fit manner, and the passive pin penetrates out of the first strip-shaped hole and the lower template to extend into the sliding groove; In the process that the lower template moves to the outside of the baking cavity to drive the upper template to open the mold upwards, the lower template moves to the outside of the baking cavity to drive the fixed cylinder and the driven pin to move, when the driven pin is blocked and cannot synchronously move to the outside of the baking cavity along with the lower template, the lower template continues to move to drive the pushing sleeve to move relative to the fixed cylinder, so that the driven pin pushes the stop block of the spiral groove column to move from the first annular groove to the second annular groove on the flat groove, and after the limiting ring is propped against the side wall of the second annular groove, the pushing sleeve continues to move to enable the limiting pin to push the spiral groove to drive the spiral groove column to rotate, so that the stop block is overturned to eject the needle pushing frame from the embedded groove to drive the ejector pin to eject the badminton racket embedded in the forming groove; in the process that the lower die plate moves towards the baking cavity to drive the upper die plate to clamp downwards, the lower die plate moves towards the baking cavity to drive the fixed cylinder and the driven pin to move, when the driven pin is blocked by the side wall of the sliding groove, which is close to one end in the baking cavity, the lower die plate continues to move to drive the pushing sleeve to move relative to the fixed cylinder, so that the driven pin pushes the stop block of the spiral groove column to be positioned on the flat groove to move from the second annular groove to the first annular groove, the thimble frame is enabled to fall back after losing the support of the limiting ring, and the top of the thimble and the bottom of the molding groove are enabled to jointly form a molding curved surface which is matched with the appearance of the badminton racket.
8. The apparatus of claim 7, wherein the jacking means further comprises a moving member, an elastically telescopic pushing block is disposed at an upper end of the moving member, an inclined second guide surface is disposed at a side of the pushing block facing the outside of the baking chamber, the moving member is adapted to be inserted into the sliding slot to move, and a second elastic member is connected between the moving member and an inner wall of the sliding slot adjacent to the outside of the baking chamber, and an elastic action of the second elastic member forms a force for continuously pushing the moving member into the baking chamber; A guide pin is fixed on the side wall of one end of the chute, which is close to the outside of the baking cavity; When the lower template moves to the outside of the baking cavity to drive the fixed cylinder and the driven pin to move, and the driven pin is blocked by the push block, the lower template continues to move to drive the pushing sleeve to move relative to the fixed cylinder, so that the driven pin pushes the stop block of the spiral groove column to move from the first annular groove to the second annular groove on the flat groove, and the lower template continues to move to drive the moving part to overcome the elastic acting force of the second elastic part to continue to move until the second guide surface of the push block is blocked by the guide pin to descend, and the driven pin continues to move from the push block to move out of the sliding groove after passing through the push block.
9. The apparatus of claim 8, wherein a telescoping slot is disposed in the moving member, a relief slot is disposed on a side of the moving member facing away from the telescoping slot, a relief hole is disposed between the telescoping slot and the relief slot, the push block is provided with a limiting shaft, the limiting shaft passes through the relief hole and then is fixedly mounted in the relief slot, and a third elastic member is disposed between the push block and the telescoping slot adjacent to a bottom surface of the relief slot, and an elastic force of the third elastic member forms a force for continuously pushing the push block out of the telescoping slot.
10. The apparatus of claim 7, further comprising an air guide and an air receiving tube, wherein the air guide has two ports, one of the ports of the air guide is connected to a port of the middle shaft of the prefabricated badminton racket far away from the racket frame, the axial direction of the spiral groove column is provided with a through hole, the air receiving tube passes through the axial through hole of the spiral groove column in a clearance fit mode, one end of the air receiving tube passes out of the lower template to be connected to an air source, the other end of the air receiving tube is connected with an elbow, the port of the elbow far away from one end of the air receiving tube is an air receiving hole, the air receiving hole faces upwards, and the other port of the air guide far away from the middle shaft is correspondingly communicated with the air receiving hole after the prefabricated badminton racket is placed in the forming groove.

Description

Hot-press forming equipment of racket Technical Field The invention relates to the technical field of plastic molding, in particular to hot press molding equipment for a badminton racket. Background The badminton racket made of carbon fiber materials is manufactured through a hot-press forming process, corresponding hot-press forming equipment is generally provided with a baking structure and a forming die, the forming die mainly comprises an upper die plate and a lower die plate, the upper die plate and the lower die plate can be matched with each other to form a cavity for manufacturing the badminton racket, a prefabricated badminton racket formed by rolling carbon fiber cloth is placed in the cavity during manufacturing, the die is sent into a high-temperature cavity of the baking structure, hot-press forming processing of the badminton racket is completed through a high-temperature environment, the die is moved out of the high-temperature cavity after the forming processing is completed, die opening is completed, and the formed badminton racket is taken out. In the prior art, the mold opening and closing actions of the hot-press forming equipment for the badminton racket are mostly finished by means of manual operation, and in the process that an operator transfers the mold into a high-temperature cavity of a baking structure and moves out of the high-temperature cavity, the upper and lower templates of the equipment are required to be directly moved and turned or forced by the operator, so that the attaching and closing and the separating of the upper and lower templates are realized, the whole process of the manual operation is required to participate in the whole operation link of the mold opening and closing, and the manual operation intensity of the hot-press forming operation for the badminton racket is always in a higher level. Disclosure of Invention Aiming at the defects of the background technology, the invention provides hot press forming equipment of a badminton racket. The invention adopts the following technical scheme: a hot press molding apparatus for a badminton racket, the apparatus comprising: The baking oven is provided with a baking cavity, a first guide surface is arranged at the upper opening position of the baking cavity, and the first guide surface is outwards and upwards inclined from the interior of the baking cavity; The mould comprises an upper mould plate, a lower mould plate, a connecting rod and a first elastic piece, wherein the upper mould plate is hinged with the lower mould plate, the upper mould plate and the lower mould plate are provided with forming grooves, after the upper mould plate and the lower mould plate are assembled, the forming grooves of the upper mould plate and the forming grooves of the lower mould plate are correspondingly combined to form a cavity of a badminton racket, the side edge of the lower mould plate is connected with a sliding piece, the elastic acting force of the first elastic piece forms acting force for enabling the sliding piece to continuously move towards the pivoted position of the upper mould plate and the lower mould plate, and two ends of the connecting rod are pivoted with the upper mould plate and the sliding piece respectively; wherein the mold is adapted to be embedded within the toasting cavity and the lower die plate is constrained to slide against a lower surface of the toasting cavity; When the die moves out of the baking cavity, one end of the lower die plate is positioned in the baking cavity, and the first elastic piece drives the sliding piece to move to a position where the upper die plate and the lower die plate are pivoted, and drives the connecting rod to lift the upper die plate so as to open the die; When the die moves into the baking cavity, the upper die plate is blocked by the first guide surface and moves downwards into the baking cavity to be attached to the lower die plate, so that die assembly is realized. In one possible implementation manner, a bearing part is arranged at one end of the lower template, which is opposite to the outside of the baking cavity, and the pivoted position of the upper template and the lower template is positioned at one end of the bearing part, which is close to the outside of the baking cavity, and when the upper template moves out of the baking cavity and lifts upwards, the bearing part is positioned in the baking cavity. In one possible implementation manner, a stop lever is fixed on the bottom surface of the bearing part, a strip-shaped groove is arranged on the bottom surface in the baking cavity, the strip-shaped groove is parallel to the inner and outer directions of the baking cavity, and the stop lever extends into the strip-shaped groove; When the upper template moves out of the baking cavity and is lifted upwards, the stop lever moves to abut against the side wall of the strip-shaped groove, which is close to one end outside the baking cavity. In one possible implem