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CN-122008493-A - Injection mold for processing automobile rearview mirror shell

CN122008493ACN 122008493 ACN122008493 ACN 122008493ACN-122008493-A

Abstract

The invention discloses an injection mold for processing an automobile rearview mirror shell, which relates to the technical field of automobile rearview mirror injection molding and comprises an upper mold and a lower mold matched with the upper mold, wherein guide posts are fixedly connected to four corners of the lower surface of the upper mold, butt joint holes are formed in four corners of the upper surface of the lower mold, and the butt joint holes correspond to the guide posts one by one. This injection mold is used in automobile rearview mirror shell processing, the upward movement of driving plate can make the elastic force that contradicts the board overcome the torsional spring rotate around the fixed axle, under the compound die state, the fixed plate of going up mould avris is located the rotation route of contradicting the board, along with the upset in opposite directions of contradicting the board, the upper end of its form of buckling will closely contradict with the fixed plate, contradict the board and mutually support with the fixed plate, realize further spacing to last mould, bed die, avoid receiving the relative displacement of injection molding pressure because of the mould in-process of moulding plastics, effectively promoted the stability and the reliability of compound die, guaranteed the shaping quality of automobile rearview mirror shell.

Inventors

  • CUI CHENG
  • Ju Xinbing
  • WEI QINGZE
  • ZHOU YUNLI
  • WANG XUETING

Assignees

  • 江苏瑞朗汽车科技有限公司

Dates

Publication Date
20260512
Application Date
20260416

Claims (9)

  1. 1. The utility model provides an injection mold for automobile rearview mirror shell processing, includes last mould (1) and rather than assorted bed die (2), the lower surface four corners department fixedly connected with guide post (20) of last mould (1), butt joint hole (21) have been seted up to the upper surface four corners department of bed die (2), and butt joint hole (21) and guide post (20) position one-to-one, a serial communication port, the avris of last mould (1) is provided with stop gear, and stop gear rotates through conflict board (9) that the feeding drive of cooling water contained, realizes further spacing between last mould (1) and the bed die (2) under the involution mould state.
  2. 2. The injection mold for machining the automobile rearview mirror housing according to claim 1, wherein the lower mold (2) and the lower mold (2) are provided with water inlet channels (6), cooling water pipes (3) are arranged on the sides of the lower mold (2) and the lower mold (2), and the water inlet channels (6) are communicated with each other through the cooling water pipes (3).
  3. 3. The injection mold for processing the automobile rearview mirror housing according to claim 2, wherein an S-shaped structural design is adopted between the cooling water pipe (3) and the water inlet channel (6), a driving cavity (19) is communicated between the adjacent water inlet channels (6), a driving shaft (17) is rotatably connected inside the driving cavity (19), and after cooling water enters the water inlet channel (6), part of water is supplied into the water inlet channel (6) at the other side from the driving cavity (19).
  4. 4. The injection mold for processing the automobile rearview mirror housing according to claim 3, wherein the upper end of the driving shaft (17) is fixedly connected with a water wheel (18), the lower end of the driving shaft (17) is fixedly connected with a heat dissipation fan (16), the heat dissipation fan (16) is positioned below the two groups of water inlet channels (6), and the air force generated by the heat dissipation fan (16) assists the mold body to dissipate heat integrally.
  5. 5. The injection mold for machining the shell of the automobile rearview mirror according to claim 1, wherein the limiting mechanism comprises a fixed shaft (10), the fixed shaft (10) is fixedly connected to the outer side of the lower mold (2), an abutting plate (9) is rotatably connected to the upper portion of the outer side of the fixed shaft (10), and the upper end of the abutting plate (9) is in a bent structure.
  6. 6. The injection mold for processing the automobile rearview mirror housing according to claim 5, wherein the outer side of the lower mold (2) is fixedly connected with a fixed box (12), the fixed box (12) is arranged in a fan-shaped structure, a sealing plate (15) is slidingly connected in the fixed box (12), and meanwhile, the lower surface of the sealing plate (15) is fixedly connected with a driving rod (14).
  7. 7. The injection mold for machining the automobile rearview mirror housing according to claim 6, wherein the lower end of the abutting plate (9) is fixedly connected with a driving plate (13), two groups of abutting plates (9) are symmetrically arranged on the center point of the lower mold (2), a torsion spring (11) is fixedly connected between the outer side of each abutting plate (9) and the fixed shaft (10), and the abutting plates (9) can keep an initial position when no external force is applied through the elastic action of the torsion spring (11).
  8. 8. The injection mold for processing the automobile rearview mirror housing according to claim 7, wherein the driving rod (14) penetrates through the lower outer side of the fixed box (12) in a sliding mode, the driving rod (14) is fixedly connected with the outer side of the driving plate (13), the lower side of the fixed box (12) is connected with the lower communication water pipe (5) in a penetrating mode, the other end of the lower communication water pipe (5) is communicated with the water inlet channel (6), in an initial state, the driving plate (13) is located at the lower position of the fixed box (12), and in a cooling water supply state, the lower communication water pipe (5) is driven to move upwards by the cooling water body, and the abutting plate (9) rotates.
  9. 9. The injection mold for processing the automobile rearview mirror housing according to claim 8, wherein a fixing plate (7) is fixedly connected to the side of the upper mold (1), an inflatable air bag (8) is fixedly connected to the inside of the fixing plate (7), an upper air supply hose (4) is connected between the inflatable air bag (8) and the upper position of the fixing box (12) in a penetrating manner, and when cooling water is supplied in a mold closing state, the two groups of abutting plates (9) are turned in opposite directions and abut against the fixing plate (7).

Description

Injection mold for processing automobile rearview mirror shell Technical Field The invention relates to the technical field of automobile rearview mirror injection molding, in particular to an injection mold for processing an automobile rearview mirror shell. Background The automobile rearview mirror shell is used as an important safety part of an automobile, and the appearance quality, the structural strength and the forming precision of the automobile rearview mirror shell directly influence the product performance and the whole automobile assembly effect. The injection mold for forming the automobile connector shell comprises a fixed plate, a telescopic rod and a demolding rod, wherein limiting rings are arranged on the left side and the right side of the fixed plate, sliding rods are arranged on the inner sides of the limiting rings, a large air cylinder is arranged in the middle of the fixed plate, the telescopic rod is arranged on the right side of the large air cylinder, a movable mold plate is arranged on the right side of the telescopic rod, a small air cylinder is arranged on the left side of the inner portion of the movable mold plate, a mold lifting plate is arranged on the right side of the small air cylinder, the demolding rod is arranged on the right side of the mold lifting plate, a mold groove is formed in the right side of the demolding rod, an exhaust hole is formed in the upper portion of the mold groove, the right side of the mold groove is provided with the fixed mold plate, compared with an existing common injection mold, circular spraying can be realized, meanwhile, the situation that a mold is inconsistent in mass production is reduced through the sliding rods, the mold can be automatically lifted, and is not blocked and is easy to take out. There is also an adjustable injection mold for automotive housings in the second prior art (chinese patent publication No. CN116100753B, publication No. 2023-08-22). The invention provides an adjustable automobile shell injection mold with a simple template replacing step, which comprises a shell, a cover, an upper template group, a supporting plate, a lower template group and a partition mechanism, wherein the cover is arranged on the upper side of the shell, the upper template group is arranged on the lower side of the cover, the supporting plate is connected in the shell in a sliding mode, the lower template group is arranged on the upper side of the supporting plate, the partition mechanism for driving the lower template group to move upwards is arranged between the supporting plate and the lower template group, a hand wheel is manually rotated by people, a bidirectional threaded rod is rotated by the hand wheel, a corresponding ejector rod is jacked by the movement of a sliding block, and a cavity is formed among the corresponding lower template group, the corresponding upper template group and the supporting plate, so that the simple replacing effect is realized, and the production efficiency is improved. In practical application, when the existing injection mold is used for processing an automobile rearview mirror shell, the problems still exist to be improved, and part of the molds are positioned only by matching the guide posts with the butt joint holes in the mold closing process, so that relative displacement among the molds can occur after the injection molding pressure is high or the injection molding mold is used for a long time, and the precision of a formed product is affected. So we propose an injection mold for processing the housing of the automobile rearview mirror, so as to solve the problems set forth in the above. Disclosure of Invention The invention aims to provide an injection mold for processing an automobile rearview mirror shell, which aims to solve the problem that in the mold closing process of part of molds in the current market, which is proposed by the background technology, the positioning is carried out only by matching a guide post and a butt joint hole, and after the injection mold is used for a long time or under a large injection pressure, the relative displacement among the molds possibly occurs, so that the precision of a formed product is affected. In order to achieve the purpose, the injection mold for processing the automobile rearview mirror shell comprises an upper mold and a lower mold matched with the upper mold, wherein guide posts are fixedly connected to four corners of the lower surface of the upper mold, butt joint holes are formed in four corners of the upper surface of the lower mold and correspond to the guide posts one by one, a limiting mechanism is arranged on the side of the upper mold, and the limiting mechanism drives a collision plate contained in the upper mold to rotate through the feeding of cooling water body so as to further limit the upper mold and the lower mold in a butt joint state. Preferably, the lower die and the lower die are provided with water inlet channels, cooling