Injection mold for automobile handle switch surface cover

Abstract

The invention relates to an injection mold for an automobile handle switch surface cover, which comprises an upper panel, a front mold plate, a rear mold plate, a bearing plate, mold feet and a lower panel, a front mold core is arranged in the front mold plate, a front injection molding area is arranged on the front mold core, a rear mold core is arranged in the rear mold plate, a rear injection molding area is arranged on the rear mold core, two front mold core-pulling mechanisms are arranged on the front mold plate, and two rear mold core-pulling mechanisms are arranged on the rear mold plate. The two front mold core-pulling mechanisms are located on the two sides of the front mold core correspondingly, each front mold core-pulling mechanism comprises a fixing base fixedly connected with the upper panel, a core-pulling block fixedly connected with the front mold plate and a core-pulling rod, a sliding block is arranged on the fixing base, a first sliding groove and a second sliding groove which are obliquely formed are formed in the core-pulling block, and the first sliding groove and the second sliding groove are communicated with the sliding block. The first sliding groove and the second sliding groove are located in the inner side and the outer side of the core pulling block respectively. By the adoption of the technical scheme, the injection mold for the automobile handle switch face cover is provided, a formed product is good in effect and high in quality, and the product is stable and rapid in structure when falling off.

Description

Technical Field

[0001] The present invention relates to an injection mold, and more particularly to an injection mold for an automotive handle switch face cover. Background Art

[0002] With the progress of technology and the improvement of living standards, automobiles have entered the lives of ordinary people. As a switch for switching the working states of an automobile such as forward, reverse, or parking, the handle switch plays an important role and is also a component that is touched by the driver more frequently. Therefore, the operating feel and touch of the handle switch are particularly important for car buyers. The handle switch includes a face cover and a bottom cover that are separately arranged. After being injection molded by an injection mold respectively and then assembled. In the production process of traditional injection molds, after the product is formed, due to the undercut of the product, after directly opening the mold, the ejector pin and the lifter are used to eject the product. Then, there is not enough space at the lifter position in the traditional injection mold, resulting in the lifter not reaching the position, the produced face cover being relatively rough, the product quality not being guaranteed, and the product being prone to shaking during the ejection process, affecting the stability, often requiring rework, resulting in low work efficiency. Summary of the Invention

[0003] Objective of the present invention: In order to overcome the defects of the prior art, the present invention provides an injection mold for an automotive handle switch face cover, with good product effect and high quality after molding, and the product has a stable and fast structure during ejection.

[0004] Technical solution of the present invention: An injection mold for an automotive handle switch face cover, comprising an upper panel, a front template, a rear template, a support plate, mold feet and a lower panel. A glue injection port is provided on the upper panel. The front template is located below the upper panel, and a front mold core is provided in the front template. A front injection area is provided on the front mold core. The lower panel is connected to the support plate through the mold feet. The support plate is connected to the rear template. A rear mold core is provided in the rear template. A rear injection area is provided on the rear mold core. When the front mold core and the rear mold core are closed, the front injection area and the rear injection area form an injection cavity. A ejection mechanism is provided between the lower panel and the support plate. A glue injection runner communicating with the glue injection port is provided in the front template. A main runner and sub-runners located at both ends of the main runner are provided in the injection cavity. The main runner communicates with the glue injection runner. Product forming areas are provided on both sides of the sub-runners in the injection cavity. The two sub-runners communicate with the corresponding product forming areas respectively. Two front mold core pulling mechanisms are provided on the front template. The two front mold core pulling mechanisms are respectively located on both sides of the front mold core. Each of the two front mold core pulling mechanisms includes a fixed seat fixedly connected to the upper panel, a core pulling block fixedly connected to the front template and a core pulling rod. A sliding block is provided on the fixed seat. An inclined first chute and a second chute are provided on the core pulling block. The first chute and the second chute are respectively located inside and outside the core pulling block. One end of the core pulling rod is arranged in the first chute, and the other end extends into the product forming area. A first positioning convex block is provided at the end of the core pulling rod extending into the product forming area. The sliding block is slidably arranged in the second chute. Two relatively arranged retracting blocks and a driving block for driving the two retracting blocks to slide are provided at the position of the product forming area in the rear mold core. The driving block is fixedly connected to the rear mold core. The bottoms of the two retracting blocks are in contact with the driving block. A guiding shaft is fixedly provided on the support plate. The two retracting blocks are located on both sides of the guiding shaft and are in guiding sliding fit with the guiding shaft. Second positioning convex blocks are provided on the opposite sides of the two retracting blocks. A through groove for the second positioning convex block to extend outside the rear mold core is provided on the rear mold core.

[0005] With the above technical solution, the plastic melt enters from the injection gate and then flows into the product forming cavity through the main runner. Then, the plastic melt is sprayed into the product forming areas on both sides through the sub-runners for product forming, thus improving the working efficiency. At the same time, when the product is formed, when the mold is opened, the core pulling block of the front mold core pulling mechanism slides relative to the fixed seat. Due to the inclined second chute, the two core pulling blocks can move away from each other, and the first positioning convex block disengages from the product forming area and the product. The ejector rod of the external injection molding machine pushes the ejector mechanism upward, first pushing the rear mold to move, driving the two retracting blocks to move upward and move towards each other to disengage from the product. The ejector mechanism continues to move upward to eject the product, thus solving the problem in the prior art that during the product dropping process, the product shakes greatly, resulting in poor stability, so there are often rework phenomena, thus unable to meet the continuous production of automotive parts and resulting in reduced working efficiency. Therefore, it has the characteristics of high working efficiency and good stability.

[0006] Further setting of the present invention: The ejection mechanism includes a lower ejector plate, an upper ejector plate and a plurality of ejector pins. The ejector pins include vertical ejector pins and inclined ejector pins. The lower end of the vertical ejector pin is fixedly connected to the upper ejector plate. The upper end of the vertical ejector pin passes through the driving block and extends into the product molding cavity, and is in contact with the inner top wall of the product. The inclined ejector pin is located on one side of the vertical ejector pin. The lower end of the inclined ejector pin is fixedly connected to the lower ejector plate through a connecting block, and the upper end extends into the product molding area and is in contact with the inner top wall of the product.

[0007] With the above further setting, the product is ejected from multiple angles by multiple ejector pins, which is faster. The upper end of the inclined ejector pin is integrally formed with an ejection block, which has a large contact area with the product, and the structure is more stable and efficient during ejection. A retraction rod is provided on the lower panel, and this retraction rod can quickly reset the lower ejector plate and the upper ejector plate, facilitating the closing of the front mold and the rear mold and the re-molding of the product. Therefore, the working efficiency is improved.

[0008] Another further setting of the present invention: It further includes a first latch mechanism. The first latch mechanism includes a reset rod, a slider, two pressure bars and a guide block. The lower end of the reset rod is fixed on the upper ejector plate, and the upper end of the reset rod extends on the rear template. There is a convex platform on the inner side wall of the reset rod. The two pressure bars are located on both sides of the slider and are in contact with the slider. The pressure bars are fixed on the rear template. The guide block is fixedly arranged on the support plate. There is an inclined first guide chute on the guide block. A first guide convex block is correspondingly provided on the slider. The first guide slider slides in the first guide chute and, when sliding to the top of the first guide chute, the slider disengages from the convex platform and the rear template stops sliding.

[0009] With the above another further setting, when the ejection mechanism moves upward, it drives the reset rod to slide. The convex platform on the reset rod drives the slider to slide in the first guide chute. Since the first guide chute is inclined, when the slider slides upward and is located at the top of the first guide chute, the slider separates from the convex platform, and the movement of the rear mold stops. The ejection plate continues to move upward to drive the reset rod and the ejector pins upward to eject the molded product in the product molding area. When the rear mold moves, it will drive the retraction block to move, realizing unlocking and separating from the product, reducing the vibration and offset generated by the high pressure or high-speed operation during the injection molding process of the mold, enhancing the stability and service life of the mold, ensuring product consistency, ensuring the accurate position of the mold, and being able to ensure the consistency of the products in size and shape for each injection molding.

[0010] Another even further setting of the present invention: There are inclined second guide convex blocks on both sides of the guide shaft, and correspondingly inclined second guide chutes are provided on the retraction blocks to drive the two retraction blocks to move towards each other when sliding upward and move away from each other when sliding downward.

[0011] Further setting: On the opposite sides of the two retracting blocks, there are also extension blocks provided. The second positioning convex block is integrally arranged on the extension block. The extension block is located in the through groove, and there are several grooves on the extension block on one side of the second positioning convex block.

[0012] With the above further setting, when the rear mold moves upward, it drives the two retracting blocks to move towards each other and separate from the product, facilitating the subsequent ejection of the product.

[0013] A further setting of the present invention: It further includes a second latch mechanism. The second latch mechanism includes a first connecting rod, a second connecting rod, a positioning member, and a positioning shaft. The first connecting rod is fixedly connected to the upper panel, and the second connecting rod is fixedly connected to the rear template. An outer cover is fixedly arranged on the front template. The positioning shaft and the positioning member are located inside the outer cover, and there is an arc-shaped groove on the positioning member. The end of the positioning shaft is located in the arc-shaped groove. There is a space on the outer cover for the first connecting rod and the second connecting rod to slide. The positioning member is located on one side of the connecting rod. There is a pressing block on the lower end of the first connecting rod close to one side of the positioning member. There is a first inclined surface on the pressing block. There is a hook portion on the upper end of the second connecting rod. There is a relief groove on the positioning member. There is a second inclined surface on the relief groove. When the first connecting rod slides upward, the first inclined surface contacts the second inclined surface and can drive the positioning member to rotate around the positioning shaft. When closing the mold, the hook portion hooks on the positioning member. There is a return spring on the positioning shaft for resetting the positioning member.

[0014] With the above further setting, when opening the mold, during the process of the upper panel moving upward and driving the first connecting rod to move upward, the first inclined surface on the lower end of the first connecting rod contacts the second inclined surface of the positioning member. When the first connecting rod continues to move, it can drive the positioning member to rotate around the positioning shaft, vacating space for the second connecting rod to slide. The setting of the latch makes the position accurate when the mold opens and closes, and when closing the mold for injection molding, it can close tightly, preventing the mold from separating under the injection pressure, ensuring the accuracy and quality of the injection molded product. The outer cover hides the latch mechanism, making it more beautiful. Two second latch mechanisms are provided, respectively located on both sides of the mold, and the structure is more stable when opening and closing the mold.

[0015] A further setting of the present invention: An inclined guide post is fixedly arranged on the lower panel. The inclined guide post is located on one side of the inclined ejector pin. There is a sliding block on the inclined ejector pin. The sliding block slides on the inclined guide post. There is an inclined third guiding chute on the connecting block. The sliding block slides in the third guiding chute.

[0016] With the above further setting, the inclined guide post plays an auxiliary and guiding role, reducing the force on the inclined ejector pin, making its structure firm and having a long service life. The slider synchronously slides with the inclined ejector pin and slides along the inclined guide post, being more stable.

[0017] A further improvement of the present invention: The two runner channels are arranged in a horn shape. Concave cavities are provided on the rear mold core corresponding to the positions of the two runner channels. Two fixing blocks are arranged in the concave cavities. Accommodating grooves are provided on the opposite sides of the two fixing blocks. The runner channels are located in the accommodating grooves. Through holes for the ends of the runner channels to extend out are provided on the fixing blocks corresponding to the product forming area.

[0018] With the above further improvement, the stability is good, enabling the plastic melt to be accurately injected, and the formed product is more beautiful.

[0019] A further improvement of the present invention: It further includes a first circulating water path and a second circulating water path. The first circulating water path is arranged in the front mold core. The first circulating water path includes a first water inlet pipe, a first water outlet pipe, and a first water flow path. The first water flow path includes two parallel first upper flow paths, a first lower flow path, and a connecting flow path connecting the first upper flow path and the first lower flow path. The connecting flow path is arranged vertically. The first lower flow path is located outside the product forming area. One ends of the two first upper flow paths are connected to the connecting flow path, and the other ends are connected to the first water inlet pipe or the first water outlet pipe. The ends of the first water inlet pipe and the first water outlet pipe are exposed outside the front template. The second circulating water path is arranged in the rear mold core. The second circulating water path includes a second water inlet pipe, a second water outlet pipe, and a second water flow path. The second water flow path is arranged in a "U" shape and is connected to the second water inlet pipe and the second water outlet pipe at both ends respectively. The ends of the second water inlet pipe and the second water outlet pipe are exposed outside the rear template.

[0020] With the above further improvement, through the setting of water circulation, the surface heat of the product can be effectively reduced, enabling the product to be quickly cooled and formed, preventing overheating inside, resulting in slow production of finished products, greatly accelerating the production speed of finished products, improving work efficiency, and the first lower flow path and the second water flow path are located on the outer periphery of the product forming area, further improving the cooling effect. The first water flow path is arranged in two layers, extending the path of the water flow channel without affecting the operation of the front mold core pulling mechanism and other structures. The overall structure layout is reasonable.

[0021] A further improvement of the present invention: Skid plates are fixedly arranged on both sides of the sliding block. Fourth guiding chutes are arranged on both sides of the third guiding chute on the connecting block. The skid plates slide in the fourth guiding chutes. The fourth guiding chutes are arranged obliquely. A connecting clamping groove and a connecting clamping block located in the connecting clamping groove are arranged on the sliding block. The lower end of the inclined ejector pin is inserted into the connecting clamping groove, and a transverse groove is opened corresponding to the position of the connecting clamping block. The connecting clamping block is clamped in the transverse groove.

[0022] With the above further settings, the inclination direction of the fourth guide groove is the same as that of the third guide groove, both inclining from the inner side to the outer side and from top to bottom. During the upward movement of the ejector plate, the sliding plate slides in the fourth guide chute, driving the two angled ejector pins to move upward and towards each other, ejecting the product from the rear mold core. The structure between the angled ejector pins and the slider is easy to install and does not affect the stability between the two at the same time. Brief Description of the Drawings

[0023] Figure 1 Schematic structural diagram of a specific embodiment of the present invention; Figure 2 Internal schematic diagram of a specific embodiment of the present invention; Figure 3 Schematic diagram of the rear mold core and the first latch mechanism of a specific embodiment of the present invention; Figure 4 Schematic diagram of the front mold core-pulling mechanism of a specific embodiment of the present invention; Figure 5 Schematic diagram of the retractable block and the second circulating water channel of a specific embodiment of the present invention; Figure 6 Schematic diagram of the retractable block and the vertical ejector pin of a specific embodiment of the present invention; Figure 7 Schematic diagram of the first latch mechanism of a specific embodiment of the present invention; Figure 8 Schematic diagram of the boss of a specific embodiment of the present invention; Figure 9 Schematic diagram of the second latch mechanism of a specific embodiment of the present invention; Figure 10 Schematic diagram of the positioning member of a specific embodiment of the present invention; Figure 11 Schematic diagram of the positioning member and the positioning shaft of a specific embodiment of the present invention; Figure 12 Schematic diagram of the two connecting rods of a specific embodiment of the present invention; Figure 13 Schematic diagram of the angled ejector pin and the angled guide pillar of a specific embodiment of the present invention; Figure 14 Exploded view of the connecting seat and the angled ejector pin of a specific embodiment of the present invention; Figure 15 Schematic diagram of the rear mold core and the main runner of a specific embodiment of the present invention; Figure 16 Schematic diagram of the rear mold core of a specific embodiment of the present invention; Figure 17 Schematic diagram of the cooperation between the fixed block and the sub-runner of a specific embodiment of the present invention; Figure 18 Schematic diagram of the second circulating water channel of a specific embodiment of the present invention; Figure 19 Schematic diagram of the first circulation waterway in a specific embodiment of the present invention; Figure 20 Schematic diagram of the front template and the front mold core in a specific embodiment of the present invention.

[0024] In the figure, 1. upper panel; 11. glue injection port; 2. front template; 21. front mold core; 211. front injection area; 22. injection runner; 23. main runner; 24. sub-runner; 25. front mold core pulling mechanism; 251. fixed seat; 2511. sliding block; 252. core pulling block; 2521. first chute; 2522. second chute; 253. core pulling rod; 2531. first positioning protrusion; 26. outer cover; 3. rear template; 31. rear mold core; 311. rear injection area; 32. retraction block; 321. second positioning protrusion; 323. extension block; 3231. groove; 33. driving block; 34. through groove; 35. cavity; 351. fixed block; 4. supporting plate; 41. guiding shaft; 411. second guiding protrusion; 5. mold feet; 6. lower panel; 61. inclined guide pillar; 7. ejecting mechanism; 71. lower ejector plate; 72. upper ejector plate; 73. ejector pin; 731. vertical ejector pin; 732. inclined ejector pin; 7321. sliding block; 7322. sliding plate; 74. connecting block; 741. third guiding chute; 742. fourth guiding chute; 8. first latch mechanism; 81. reset rod; 811. boss; 82. slider; 821. first guiding protrusion; 83. pressing strip; 84. guiding block; 841. first guiding chute; 9. second latch mechanism; 91. first connecting rod; 911. pressing block; 9111. first inclined surface; 92. second connecting rod; 921. hooking part; 93. positioning member; 931. arc groove; 932. relief groove; 9321. second inclined surface; 94. positioning shaft; 10. first circulation waterway; 101. first water inlet pipe; 102. first water outlet pipe; 103. first water flow path; 1031. first upper water flow path; 1032. first lower water flow path; 1033. connecting water flow path; 20. second circulation waterway; 201. second water inlet pipe; 202. second water outlet pipe; 203. second water flow path. Specific embodiments

[0025] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back...) are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise specifically defined.

[0028] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those skilled in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Such as Figure 1-20As shown in the figure, an injection mold for an automotive handle switch face cover includes an upper panel 1, a front template 2, a rear template 3, a support plate 4, mold feet 5, and a lower panel 6. Mold guide columns are provided at the four corners of the rear template 3, and the rear template 3 is connected to the front template 2 through the mold guide columns. The support plate 4 is also connected to the rear mold core 31 through the mold guide columns. The upper panel 1 is provided with a glue injection port 11. The front template 2 is located below the upper panel 1, and a front mold core 21 is provided inside the front template 2. A front injection area 211 is provided on the front mold core 21. The lower panel 6 is connected to the support plate 4 through the mold feet 5. The support plate 4 is connected to the rear template 3. A rear mold core 31 is provided inside the rear template 3. A rear injection area 311 is provided on the rear mold core 31. When the front mold core 21 and the rear mold core 31 are closed, the front injection area 211 and the rear injection area 311 form an injection cavity. A ejection mechanism 7 is provided between the lower panel 6 and the support plate 4. A glue injection runner communicating with the glue injection port 11 is provided inside the front template 2. A main runner 23 and sub-runners 24 located at both ends of the main runner 23 are provided inside the injection cavity. The main runner 23 communicates with the glue injection runner. Product forming areas are provided on both sides of the sub-runners 24 inside the injection cavity. The two sub-runners 24 respectively communicate with the corresponding product forming areas. Two front mold core pulling mechanisms 25 are provided on the front template 2. The two front mold core pulling mechanisms 25 are respectively located on both sides of the front mold core 21. Each of the two front mold core pulling mechanisms 25 includes a fixed seat 251 fixedly connected to the upper panel 1, a core pulling block 252 fixedly connected to the front template 2, and a core pulling rod 253. A sliding block 2511 is provided on the fixed seat 251. An inclined first chute 2521 and a second chute 2522 are provided on the core pulling block 252. The first chute 2521 and the second chute 2522 are respectively located on the inner and outer sides of the core pulling block 252. One end of the core pulling rod 253 is arranged in the first chute 2521, and the other end extends into the product forming area. A first positioning protrusion 2531 is provided at the end of the core pulling rod 253 extending into the product forming area. The sliding block 2511 slides in the second chute 2522. Two relatively arranged retractable blocks 32 and a driving block 33 for driving the two retractable blocks 32 to slide are provided at the position of the product forming area inside the rear mold core 31. The driving block 33 is fixedly connected to the rear mold core 31. The bottoms of the two retractable blocks 32 are in contact with the driving block 33. A guide shaft 41 is fixedly provided on the support plate 4. The two retractable blocks 32 are located on both sides of the guide shaft 41 and are in guiding sliding cooperation with the guide shaft 41. A second positioning protrusion 321 is provided on the opposite sides of the two retractable blocks 32. A through groove 34 for the second positioning protrusion 321 to extend outside the rear mold core 31 is provided on the rear mold core 31. The plastic melt enters from the pouring gate, then flows into the product forming cavity through the main runner 23, and then sprays the plastic melt to the product forming areas on both sides through the sub-runners 24 for product forming, thereby improving the working efficiency. At the same time, when the product is formed, when the mold is opened, the core pulling block 252 slides relative to the fixed seat 251 in the front mold core pulling mechanism 25. Due to the inclined second chute 2522, the two core pulling blocks 252 can move away from each other.The first positioning bump 2531 disengages from the product forming area and the product. The ejector rod of the external injection molding machine pushes the ejector pin 73 mechanism upward, first pushing the rear mold to move, driving the two retraction blocks 32 to move upward and move towards each other, disengaging from the product. The ejector pin 73 mechanism continues to move upward to eject the product, thus solving the problem in the prior art that during the product shedding process, the product shakes greatly, resulting in poor stability, so there are often rework phenomena, thus unable to meet the continuous production of automotive parts and leading to a reduction in work efficiency. Therefore, it has the characteristics of high work efficiency and good stability.,

[0030] The ejecting mechanism 7 includes a lower ejector plate 71, an upper ejector plate 72 and a plurality of ejector pins 73. The ejector pins 73 include vertical ejector pins 731 and inclined ejector pins 732. The lower end of the vertical ejector pin 731 is fixedly connected to the upper ejector plate 72. The upper end of the vertical ejector pin 731 passes through the driving block 33 and extends into the product forming cavity, and is in contact with the inner top wall of the product. The driving block 33 slides outside the vertical ejector pin 731. When the driving block 33 slides, the structure is stable, which can play a guiding effect, save space and have a standardized layout. The inclined ejector pin 732 is located on one side of the vertical ejector pin 731. The lower end of the inclined ejector pin 732 is fixedly connected to the lower ejector plate 71 through a connecting block 74, and the upper end extends into the product forming area and is in contact with the inner top wall of the product. The product is ejected from multiple angles by a variety of ejector pins 73, which is faster. The upper end of the inclined ejector pin 732 is integrally formed with an ejecting block, which has a large contact area with the product, and the structure is more stable and efficient during ejection. A retracting rod is provided on the lower panel 6, and this retracting rod can quickly reset the lower ejector plate 71 and the upper ejector plate 72, which is convenient for the front mold and the rear mold to close the mold and the product to be molded again, thus improving the working efficiency. An inclined guide post 61 is fixedly provided on the lower panel 6. The inclined guide post 61 is located on one side of the inclined ejector pin 732. A sliding block 7321 is provided on the inclined ejector pin 732. The sliding block 7321 slides on the inclined guide post 61. An inclined third guiding chute 741 is provided on the connecting block 74. The sliding block 7321 slides in the third guiding chute 741. The inclined guide post 61 plays an auxiliary and guiding role, reducing the force on the inclined ejector pin 732, making its structure firm and having a long service life. The slider 82 slides synchronously with the inclined ejector pin 732 and slides along the inclined guide post 61, which is more stable. Skid plates 7322 are fixedly provided on both sides of the sliding block 7321. Fourth guiding chutes 742 are provided on both sides of the third guiding chute 741 on the connecting block 74. The skid plates 7322 slide in the fourth guiding chutes 742. The fourth guiding chutes 742 are inclined. A connecting card slot and a connecting card block located in the connecting card slot are provided on the sliding block 7321. The lower end of the inclined ejector pin 732 is inserted into the connecting card slot, and a transverse slot is opened corresponding to the position of the connecting card block. The connecting card block is clamped in the transverse slot. The inclined direction of the fourth guiding slot is the same as that of the third guiding slot, both inclining from the inner side to the outer side and inclining from top to bottom. During the upward movement of the ejector pin 73 plate, the skid plates 7322 slide in the fourth guiding chutes 742, driving the two inclined ejector pins 732 to move upward and move towards each other at the same time, ejecting the product from the rear mold core 31. The structure between the inclined ejector pin 732 and the slider 82 is convenient to install and does not affect the stability between the two at the same time.

[0031] It further includes a first latch mechanism 8. The first latch mechanism 8 includes a reset rod 81, a slider 82, two pressing strips 83 and a guide block 84. The lower end of the reset rod 81 is fixed on the upper ejector plate 72, and the upper end of the reset rod 81 extends on the rear template 3. A boss 811 is provided on the inner side wall of the reset rod 81. The two pressing strips 83 are located on both sides of the slider 82 and are in contact with the slider 82. The pressing strips 83 are fixed on the rear template 3. The guide block 84 is fixedly arranged on the supporting plate 4. An inclined first guide chute 841 is provided on the guide block 84. A first guide protrusion 821 is correspondingly provided on the slider 82. The first guide slider 82 slides in the first guide chute 841 and disengages from the boss 811 when sliding to the top of the first chute 2521, and the rear template 3 stops sliding. When the ejecting mechanism 7 moves upward, it drives the reset rod 81 to slide. The boss 811 on the reset rod 81 drives the first guide protrusion 821 to slide in the first guide chute 841. Since the first guide chute 841 is inclined, the slider 82 slides upward and separates from the boss 811 when the first guide protrusion 821 is at the top of the first guide chute 841, and the rear mold stops sliding. The ejector plate continues to move upward to drive the reset rod 81 and the ejector pin 73 upward to eject the molded product in the product forming area. When the rear mold moves, it drives the retracting block 32 to move to achieve unlatching and separation from the product, reducing the vibration and offset generated by high pressure or high-speed operation during the injection molding process of the mold, enhancing the stability and service life of the mold, ensuring product consistency, ensuring the accurate position of the mold, and ensuring the consistency of the products in size and shape for each injection molding.

[0032] On both sides of the guide shaft 41, there are inclined second guide protrusions 411. Corresponding inclined second guide chutes are provided on the retracting blocks 32 to drive the two retracting blocks 32 to move towards each other when sliding upward and move away from each other when sliding downward; on the opposite sides of the two retracting blocks 32, there are also extension blocks 323. The second positioning protrusion 321 is integrally provided on the extension block 323. The extension block 323 is located in the through groove 34, and a plurality of grooves 3231 are provided on the extension block 323 on the side of the second positioning protrusion 321. When the rear mold moves upward, it drives the two retracting blocks 32 to move towards each other and separate from the product, facilitating the subsequent ejection of the product.

[0033] It further includes a second latch mechanism 9, and the second latch mechanism 9 includes a first connecting rod 91, a second connecting rod 92, a positioning member 93 and a positioning shaft 94. The first connecting rod 91 is fixedly connected to the upper panel 1, and the second connecting rod 92 is fixedly connected to the rear template 3. An outer cover 26 is fixedly provided on the front template 2. The positioning shaft 94 and the positioning member 93 are located inside the outer cover 26, and an arc-shaped groove 931 is provided on the positioning member 93. The end of the positioning shaft 94 is located inside the arc-shaped groove 931. A space for the first connecting rod 91 and the second connecting rod 92 to slide is provided on the outer cover 26. The positioning member 93 is located on one side of the connecting rod. A pressing block 911 is provided on the lower end of the first connecting rod 91 near one side of the positioning member 93. A first inclined surface 9111 is provided on the pressing block 911. A hook portion 921 is provided on the upper end of the second connecting rod 92. A relief groove 932 is provided on the positioning member 93, and a second inclined surface 9321 is provided on the relief groove 932. When the first connecting rod 91 slides upward, the first inclined surface 9111 contacts the second inclined surface 9321 and can drive the positioning member 93 to rotate around the positioning shaft 94. When the mold is closed, the hook portion 921 is hooked on the positioning member 93. A return spring for resetting the positioning member 93 is provided on the positioning shaft 94. When the mold is opened, during the process that the upper panel 1 moves upward to drive the first connecting rod 91, the first inclined surface 9111 on the lower end of the first connecting rod 91 contacts the second inclined surface 9321 of the positioning member 93. When the first connecting rod 91 continues to move, it can drive the positioning member 93 to rotate around the positioning shaft 94 to vacate a space for the second connecting rod 92 to slide. The setting of the latch mechanism enables the mold to be accurately positioned during mold opening and closing, and during mold closing and injection molding, it can be tightly closed to prevent the mold from separating under the injection pressure, ensuring the accuracy and quality of the injection molded product. The outer cover 26 hides the latch mechanism, making it more beautiful. Two second latch mechanisms 9 are provided, respectively located on both sides of the mold, and the structure is more stable during mold opening and closing.

[0034] The two runner channels 24 are arranged in a horn shape. Cavities 35 are provided on the rear mold core 31 corresponding to the positions of the two runner channels 24. Two fixing blocks 351 are provided inside the cavities 35. Accommodating grooves 3511 are provided on the opposite sides of the two fixing blocks 351. The runner channels 24 are located inside the accommodating grooves 3511. Through holes for the ends of the runner channels 24 to extend out are provided on the fixing blocks 351 corresponding to the product forming area. It has good stability, enables the plastic melt to be accurately injected, and the molded product is more beautiful.

[0035] It further includes a first circulation waterway 10 and a second circulation waterway. The first circulation waterway 10 is arranged in the front mold core 21. The first circulation waterway includes a first water inlet pipe 101, a first water outlet pipe 102 and a first water flow channel 103. The first water flow channel 103 includes two first upper flow channels 1031 and 1032 arranged in parallel and a connecting flow channel 1033 connecting the first upper flow channels 1031 and 1032. The connecting flow channel 1033 is arranged vertically. The first lower flow channel 1032 is located outside the product forming area. One ends of the two first upper flow channels 1031 are connected to the connecting flow channel 1033, and the other ends are connected to the first water inlet pipe 101 or the first water outlet pipe 102. The ends of the first water inlet pipe 101 and the first water outlet pipe 102 are exposed outside the front template 2. The second circulation waterway is arranged in the rear mold core 31. The second circulation waterway 20 includes a second water inlet pipe 201, a second water outlet pipe 202 and a second water flow channel 203. The second water flow channel 203 is arranged in a "U" shape and is connected to the second water inlet pipe 201 and the second water outlet pipe 202 at both ends respectively. The ends of the second water inlet pipe 201 and the second water outlet pipe 202 are exposed outside the rear template 3. Through the setting of water circulation, the heat on the product surface can be effectively reduced, enabling the product to be quickly cooled and formed, preventing overheating inside, resulting in slow production of finished products, greatly accelerating the production speed of finished products, improving work efficiency. And the first lower flow channel 1032 and the second water flow channel 203 are located on the outer periphery of the product forming area, further improving the cooling effect. The first water flow channel 103 is arranged in two layers, extending the path of the water flow channel without affecting the work of the front mold core pulling mechanism 25 and other structures. The overall structure layout is reasonable.

Claims

1. An injection mold for a handle switch cover of an automobile, comprising an upper panel (1), a front template (2), a rear template (3), a support plate (4), a mold foot (5), a lower panel (6) and an ejection mechanism (7), wherein the upper panel (1) is provided with a glue injection port (11), the front template (2) is provided with a front mold core (21), the rear template (3) is provided with a rear mold core (31), and the front mold core (21) and the rear mold core (31) are molded together to form an injection cavity, characterized in that: The front mold plate (2) is provided with a glue injection channel communicating with the glue injection port (11), the injection molding chamber is provided with two product molding areas, the front mold plate (2) is provided with two front mold core pulling mechanisms (25), the two front mold core pulling mechanisms (25) are respectively located on both sides of the front mold core (21), the two front mold core pulling mechanisms (25) each include a fixed seat (251) fixedly connected to the upper panel (1), a core pulling block (252) fixedly connected to the front mold plate (2), and a core pulling rod (253), the fixed seat (251) is provided with a sliding block (2511), the core pulling block (252) is provided with a first sliding groove (2521) and a second sliding groove (2522) arranged obliquely, the first sliding groove (2521) and the second sliding groove (2522) are respectively located on the inner and outer sides of the core pulling block (252), one end of the core pulling rod (253) is arranged in the first slide groove (2521), and the other end extends into the product forming area, and the end of the core pulling rod (253) extending into the product forming area is provided with a first positioning protrusion (2531), the sliding block (2511) is slidably arranged in the second slide groove (2522), and two oppositely arranged retracted blocks (32) are provided in the rear mold core (31) at the product forming area, and the two retracted blocks (32) slide synchronously with the rear mold plate (3), and a guide shaft (41) is fixedly provided on the support plate (4), and the two retracted blocks (32) are located on both sides of the guide shaft (41) and cooperate with the guide shaft (41) to guide and slide.

2. The injection mold for the automobile handle switch cover according to claim 1, characterized in that: The ejection mechanism (7) comprises a lower ejector plate (71), an upper ejector plate (72) and a plurality of ejector pins (73); the ejector pins (73) comprise vertical ejector pins (731) and oblique ejector pins (732); the lower ends of the vertical ejector pins (731) are fixedly connected to the upper ejector plate (72); the upper ends of the vertical ejector pins (731) pass through the driving block (33) and extend into the product forming cavity and are arranged to abut against the inner top wall of the product; the oblique ejector pins (732) are located on one side of the vertical ejector pins (731); the lower ends of the oblique ejector pins (732) are fixedly connected to the lower ejector plate (71) via the connecting block (74); and the upper ends of the oblique ejector pins (732) extend into the product forming area and abut against the inner top wall of the product.

3. An injection mold for a car handle switch cover according to claim 1 or 2, characterized in that: The first locking mechanism (8) includes a reset rod (81), a slider (82), two pressure strips (83) and a guide block (84), wherein the lower end of the reset rod (81) is fixed to the upper ejector plate (72), the upper end of the reset rod (81) extends to the rear template (3), a boss (811) is provided on the inner side wall of the reset rod (81), the two pressure strips (83) are located on both sides of the slider (82) and are arranged to contact the slider (82), and the pressure strips (83) are arranged to contact the slider (82). 83) is fixed on the rear template (3), the guide block (84) is fixed on the supporting plate (4), the guide block (84) is provided with a first guide groove (841) which is inclined, the slider (82) is correspondingly provided with a first guide protrusion (821), the first guide slider (82) is slidably arranged in the first guide groove (841), and when sliding to the top of the second guide groove (841), the slider (82) is disengaged from the protrusion (811), and the rear template (3) stops sliding.

4. The injection mold for the automobile handle switch cover according to claim 1 or 2, characterized in that: The guide shaft (41) is provided with an inclined second guide protrusion (411) on both sides, and the retracted block (32) is correspondingly provided with an inclined second guide slot, so as to drive the two retracted blocks (32) to move towards each other when sliding upwards, and to move away from each other when sliding downwards.

5. The injection mold for the automobile handle switch cover according to claim 1 or 2, characterized in that: The invention also comprises a second trigger mechanism (9), wherein the second trigger mechanism (9) comprises a first connecting rod (91), a second connecting rod (92), a positioning member (93) and a positioning shaft (94), wherein the first connecting rod (91) is fixedly connected to the upper panel (1), the second connecting rod (92) is fixedly connected to the rear template (3), an outer cover (26) is fixedly provided on the front template (2), the positioning shaft (94) and the positioning member (93) are located in the outer cover (26), and the positioning member (93) is provided with an arc groove (931), the end of the positioning shaft (94) is located in the arc groove (931), the outer cover (26) is provided with a space for the first connecting rod (91) and the second connecting rod (92) to slide, and the positioning member (93) is located on one end of the connecting rod. A pressing block (911) is provided at the lower end of the first connecting rod (91) near the positioning member (93), and a first inclined surface (9111) is provided on the pressing block (911). A hooking portion (921) is provided at the upper end of the second connecting rod (92), and a clearance groove (932) is provided on the positioning member (93). A second inclined surface (9321) is provided on the clearance groove (932). When the first connecting rod (91) slides upward, the first inclined surface (9111) contacts the second inclined surface (9321) and can drive the positioning member (93) to rotate around the positioning shaft (94). When the mold is closed, the hooking portion (921) is hooked on the positioning member (93), and a reset spring for resetting the positioning member (93) is provided on the positioning shaft (94).

6. The injection mold for the automobile handle switch cover according to claim 2, characterized in that: An inclined guide column (61) is fixedly provided on the lower panel (6), the inclined guide column (61) is located on one side of the inclined ejector pin (732), a sliding block (7321) is provided on the inclined ejector pin (732), the sliding block (7321) is slidably provided on the inclined guide column (61), and an inclined third guide slot (741) is provided on the connecting block (74), the sliding block (7321) slides in the third guide slot (741).

7. The injection mold for the automobile handle switch cover according to claim 1 or 2, characterized in that: The two branch flow channels (24) are arranged in the shape of bull horns. A concave cavity (35) is provided on the rear mold core (31) at positions corresponding to the two branch flow channels (24). Two fixing blocks (351) are provided in the concave cavity (35). An accommodating groove is provided on opposite sides of the two fixing blocks (351). The branch flow channel (24) is located in the accommodating groove. A through hole is provided on the fixing block (351) at a position corresponding to the product molding area for the end of the branch flow channel (24) to extend out.

8. The injection mold for the automobile handle switch cover according to claim 1 or 2, characterized in that: An extension block (323) is provided on one side of the two retracted blocks (32) facing away from each other, a second positioning protrusion (321) is integrally provided on the extension block (323), a through slot (34) is provided on the rear mold core (31), the extension block (323) is located in the through slot (34), the second positioning protrusion (321) passes through the through slot (34) and extends to the outside of the rear mold core (31), and a plurality of grooves (3231) are provided on the extension block (323) on one side of the second positioning protrusion (321).

9. The injection mold for a vehicle handle switch cover according to claim 1 or 2, characterized in that: The mold further comprises a first circulating water channel (10) and a second circulating water channel. The first circulating water channel (10) is arranged in the front mold core (21). The first circulating water channel comprises a first water inlet pipe (101), a first water outlet pipe (102) and a first water flow channel (103). The first water flow channel (103) comprises two parallel first upper flow channels (1031), a first lower flow channel (1032) and a connecting flow channel (1033) connecting the first upper flow channel (1031) and the first lower flow channel (1032). The connecting flow channel (1033) is arranged vertically. The first lower flow channel (1032) is located outside the product molding area. The two first upper flow channels (1031) are connected to each other. One end is connected to the connecting flow channel (1033), and the other end is connected to the first water inlet pipe (101) or the first water outlet pipe (102). The ends of the first water inlet pipe (101) and the first water outlet pipe (102) are exposed on the front template (2). The second circulating water channel is arranged in the rear mold core (31). The second circulating water channel (20) comprises a second water inlet pipe (201), a second water outlet pipe (202) and a second water flow channel (203). The second water flow channel (203) is arranged in a "U" shape, and its two ends are respectively connected to the second water inlet pipe (201) and the second water outlet pipe (202). The ends of the second water inlet pipe (201) and the second water outlet pipe (202) are exposed on the rear template (3).

10. The injection mold for the automobile handle switch cover according to claim 6, characterized in that: Slide plates (7322) are fixedly provided on both sides of the sliding block (7321); fourth guide grooves (742) are provided on both sides of the third guide groove (741) on the connecting block (74); the slide plates (7322) slide in the fourth guide groove (742); the fourth guide groove (742) is inclined; a connecting card slot and a connecting card block located in the connecting card slot are provided on the sliding block (7321); the lower end of the inclined ejector pin (732) is inserted into the connecting card slot; a transverse groove is provided corresponding to the position of the connecting card block; the connecting card block is clamped in the transverse groove.

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