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CN-121973396-A - Injection molding die based on plastic product

CN121973396ACN 121973396 ACN121973396 ACN 121973396ACN-121973396-A

Abstract

The invention relates to the technical field of plastic forming dies, and discloses an injection molding die based on plastic products, which comprises a die carrier; the plastic injection mold comprises a matrix mold, an injection molding sleeve and a backflow mechanism, wherein an injection molding opening is formed in the right side of the matrix mold, a baffle is arranged at the position of the injection molding opening, and the backflow mechanism is used for controlling plastic liquid in the injection molding sleeve to backflow without stopping. This injection moulding mould based on plastic products can guarantee through the anti-overflow mechanism that sets up that the mould is in the stage of moulding plastics, can not appear moulding plastics the overflow of mouth to whole anti-overflow mechanism has set up the function that can self-closing moulding plastics the mouth, and to a great extent can be in the stage of moulding plastics to plastic products, guarantees the steady operation of mould, reduces the condition that the glue solution is attached difficult to clear up, has improved plastic products's injection moulding efficiency from the side, need not the operating personnel simultaneously to the condition of moulding plastics the head, improves operating personnel's security.

Inventors

  • WANG DUXIONG
  • QU YUANLIANG

Assignees

  • 南通品杰模塑科技有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (8)

  1. 1. An injection molding die based on plastic products, characterized by comprising: A mould frame (1); The mold comprises a parent mold (2), wherein an injection molding opening (5) is formed in the right side of the parent mold (2), and a baffle is arranged at the position of the injection molding opening (5); an injection molding sleeve (3); The backflow mechanism (6) is used for controlling the plastic liquid in the injection sleeve (3) to backflow without stopping; The novel plastic injection molding device is characterized in that a screw rod (31) is rotationally connected to the inside of the injection molding sleeve (3), one end of the screw rod (31) is connected with a driving piece, the surface of the screw rod (31) is connected with a spiral blade (32), a feeding port (4) is formed in the injection molding sleeve (3), an extrusion molding cavity (33) is formed in the end portion of the injection molding sleeve (3), an anti-overflow mechanism (34) is arranged in the extrusion molding cavity (33), and a first backflow port (65), a second backflow port (66) and an outlet (67) are formed in the injection molding sleeve (3) The backflow mechanism (6) comprises a backflow pipe (61), one end of the backflow pipe (61) is communicated with the injection molding sleeve (3), a first backflow port (65) and a second backflow port (66) are both located in the backflow pipe (61), the other end of the backflow pipe (61) is connected with a containing pipe, a pressing plate (62) is slidably connected in the containing pipe, an extrusion spring (63) is arranged between the pressing plate (62) and the containing pipe, a flow guide pipe (64) is connected to the containing pipe, the flow guide pipe (64) is communicated with the injection molding sleeve (3), and a one-way valve is arranged in the flow guide pipe (64).
  2. 2. The injection molding die based on plastic products of claim 1, wherein the anti-overflow mechanism (34) comprises a guide rod (341), one end of the guide rod (341) is connected to the screw rod (31), the other end of the guide rod (341) is connected with a connecting sleeve (342), the inside of the connecting sleeve (342) is connected with a rotating column (345) in a sliding manner, one end of the rotating column (345) is connected with an hourglass column (346), the other end of the rotating column (345) is connected with a compression spring (343), a movable cavity (344) is arranged in the connecting sleeve (342), the compression spring (343) is arranged in the movable cavity (344), and a gap between the hourglass column (346) and the injection molding sleeve (3) forms a fluid port (347).
  3. 3. The injection molding die based on plastic products according to claim 2, wherein a key shaft (348) is fixedly connected to the right side of the rotary column (345), the key shaft (348) is slidably connected to the inside of the guide rod (341) through a key groove, and the diameter of the runner port (347) is matched with the diameter of the rotary column (345).
  4. 4. The injection molding mold based on plastic products of claim 3, wherein the hourglass column (346) is connected with a support plate (349) and a side plate (350), the support plate (349) is provided with a first opening (352) and a second opening (353), and the side plate (350) is provided with a display opening (351).
  5. 5. The injection molding die based on plastic products of claim 4, wherein the position of the outlet (67) is connected with a display tube (7) through a pipeline, the right side of the display tube (7) is communicated with the injection molding sleeve (3) through a pipeline, a one-way valve is arranged in the display tube (7), and the display tube (7) is made of transparent materials.
  6. 6. The injection molding die based on plastic products of claim 5, wherein two sliding grooves are formed in the position of the injection molding sleeve (3) at the runner port (347), and the support plate (349) and the side plate (350) are respectively and slidably connected in the sliding grooves.
  7. 7. The injection molding mold based on plastic products of claim 4, wherein the second opening (353) formed in the support plate (349) is communicated with the first reflow opening (65) in an initial stage, and the first opening (352) in the support plate (349) is communicated with the second reflow opening (66) after being abutted and aligned by the blocking piece at the position of the injection molding opening (5).
  8. 8. The injection molding die based on plastic products according to claim 1, wherein the surface of the spiral blade (32) is in contact with the inner wall of the injection molding sleeve (3), an oil cylinder is arranged on the injection molding sleeve (3) and used for pushing the injection molding sleeve (3) to move left and right, and the oil cylinder is arranged on the die carrier (1).

Description

Injection molding die based on plastic product Technical Field The invention relates to the technical field of plastic forming dies, in particular to an injection molding die based on a plastic product. Background The plastic products are the general names of articles for life, industry and the like which are processed by adopting plastics as main raw materials, and comprise all the products of injection molding, plastic suction and the like which take plastics as raw materials. When plastic products are produced and processed, the processing and production operations are generally completed by adopting an injection molding mode. When plastics are subjected to injection molding, different injection molds are required according to the shape and structure of the plastic product. At present, many plastic products are basically transported by adopting screw extrusion in the injection molding process in batches, and in the actual processing process, the extrusion molding head needs to be frequently adjusted to realize detachment and butt joint, so that overflow can occur to the extrusion molding head in the extrusion molding process, the subsequent extrusion molding butt joint is affected, operators can be required to manually remove the overflow part, the temperature of the injection molding port is very high, the injection molding efficiency is affected, and certain influence is also caused on the operation safety of the operators, so that an injection molding mold based on the plastic products is provided to solve the problems. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides an injection molding die based on a plastic product, which solves the problems that the injection molding port is frequently butted and overflowed and glue solution is attached in the injection molding stage of the plastic product in the prior art. (II) technical scheme The injection molding die comprises a die frame, a parent die, an injection molding sleeve and a backflow mechanism, wherein an injection molding opening is formed in the right side of the parent die, a baffle plate is arranged at the position of the injection molding opening, and the backflow mechanism is used for controlling plastic liquid in the injection molding sleeve to backflow without stop. The inside rotation of cover of moulding plastics is connected with the screw rod, the one end of screw rod is connected with the driving piece, the surface of screw rod is connected with helical blade, it is provided with the feed inlet to mould plastics to overlap, the tip of cover of moulding plastics is provided with the extrusion molding chamber, be provided with anti-overflow mechanism in the extrusion molding chamber Preferably, the anti-overflow mechanism comprises a guide rod, one end of the guide rod is connected to the screw rod, the other end of the guide rod is connected with a connecting sleeve, a rotating column is connected to the inner portion of the connecting sleeve in a sliding mode, an hourglass column is connected to one end of the rotating column, a compression spring is connected to the other end of the rotating column, a movable cavity is arranged in the connecting sleeve, the compression spring is arranged in the movable cavity, and a runner port is formed in a gap between the hourglass column and the injection molding sleeve. Preferably, a key shaft is fixedly connected to the right side of the rotary column, the key shaft is slidably connected to the inside of the guide rod through a key groove, and the diameter of the channel opening is matched with the diameter of the rotary column. Preferably, the hourglass post is connected with a support plate and a side plate, the support plate is provided with a first opening and a second opening, the side plate is provided with a display port, and the injection sleeve is provided with a first backflow port, a second backflow port and an outlet. Preferably, the reflux mechanism is including the back flow, the one end intercommunication of back flow is sheathe in moulding plastics, reflux mouth one and reflux mouth two all are located the inside of back flow, the other end of back flow is connected with holds the pipe, the inside sliding connection who holds the pipe has the clamp plate, be provided with extrusion spring between clamp plate and the holding pipe, it is connected with the honeycomb duct on the pipe to hold, the honeycomb duct is sheathe in the intercommunication with moulding plastics, the inside of honeycomb duct is provided with the check valve. Preferably, the position of export is connected with the display tube through the pipeline, the right side of display tube is through pipeline and cover intercommunication of moulding plastics, be provided with the check valve in the display tube, the display tube adopts transparent material. Preferably, the injection sleeve is provided with two sliding grooves at the position of