Plastic cover patch injection molding mold

Abstract

The present application relates to a plastic cover patch injection molding mold, including a core plate and a cavity plate with multiple product molding surfaces, and also includes an ejection mechanism, the ejection mechanism is used to sequentially demold multiple products after molding, the ejection mechanism includes multiple groups of inclined ejector blocks and multiple groups of inclined rods with product molding surfaces, the ends of the multiple groups of inclined ejector blocks away from the cavity plate are respectively penetrated and slidably connected to the core plate along the mold opening direction inclined to the mold, the side of the core plate away from the cavity plate is slidably connected to the ejector plate along the vertical direction, and multiple groups of the inclined rods are arranged on the ejector plate, when the ejector plate moves toward one side of the core block, the multiple groups of inclined rods are sequentially abutted on the corresponding inclined ejector blocks. The ejection mechanism is used to eject the product, so that the multiple groups of inclined rods are sequentially abutted on the inclined ejector blocks, so that the multiple groups of inclined ejector blocks are sequentially moved toward the side away from the ejector plate to eject the product, so as to achieve the effect of sequentially demolding multiple products and reduce the possibility of mutual damage between products during demolding.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to an injection molding mold for a plastic cover patch. Background Art

[0002] With the rapid development of the plastics industry and the continuous improvement of the strength of general and engineering plastics, the application scope of plastic products is also expanding, and the amount of plastic products is also increasing. Plastic molds are tools that match plastic molding machines in the plastic processing industry and give plastic products a complete configuration and precise size. Due to the wide variety of plastics and processing methods, the structures of plastic molding machines and plastic products vary in complexity, and the types and structures of plastic molds are also diverse.

[0003] like Figure 6 The figure is a schematic diagram of the product structure of a plastic cover patch. The plastic cover patch is relatively small in size, and usually a one-mold-multiple-cavity mold structure is adopted to improve the production efficiency of the plastic cover patch. However, in the prior art, the one-mold-multiple-cavity mold structure is often ejected the same distance during demolding, so that the product on the upper side is easy to fall and damage the product on the lower side after demolding, which affects the appearance of the product and affects the quality of the product. Utility Model Content

[0004] In order to reduce the possibility of products damaging each other during the demoulding process, the present application provides a plastic cover patch injection molding mold.

[0005] The present application provides a plastic cover patch injection molding mold that adopts the following technical solution:

[0006] A plastic cover patch injection molding mold comprises a core plate and a cavity plate with multiple product molding surfaces, and also comprises an ejection mechanism, wherein the ejection mechanism is used to demold multiple molded products in sequence, and the ejection mechanism comprises multiple groups of inclined ejector blocks and multiple groups of inclined rods with product molding surfaces, the multiple groups of inclined ejector blocks respectively correspond to the multiple molding surfaces on the core plate, the ends of the multiple groups of inclined ejector blocks away from the cavity plate are respectively penetrated and slidably connected to the core plate along a mold opening direction inclined to the mold, one side of the core plate away from the cavity plate is slidably connected to an ejector plate in a vertical direction, the multiple groups of inclined rods respectively correspond to the multiple groups of inclined ejector blocks, one end of the multiple groups of inclined rods is slidably connected to the ejector plate along a mold opening direction perpendicular to the mold, and when the ejector plate moves toward one side of the core block, the multiple groups of inclined rods respectively abut against the corresponding inclined ejector blocks in sequence.

[0007] By adopting the above technical solution, the product is ejected through the ejection mechanism, so that multiple groups of inclined rods are sequentially abutted against the inclined ejector blocks, so that multiple groups of inclined ejector blocks are sequentially moved toward the side away from the ejector plate to eject the product, thereby achieving the effect of demoulding multiple products in sequence and reducing the possibility of products damaging each other during the demoulding process.

[0008] Preferably, the lengths of the multiple groups of inclined rods from the inclined rods located on the upper side of the ejector plate to the inclined rods located on the lower side of the ejector plate gradually become shorter.

[0009] By adopting the above technical solution, when the ejector plate moves, multiple groups of inclined rods on the ejector plate are moved from top to bottom in sequence to abut against the inclined rods, so that multiple groups of inclined ejector blocks eject and demould the product from top to bottom at a time, reducing the possibility of products damaging each other during the demoulding process.

[0010] Preferably, a plurality of groups of the inclined ejector blocks are respectively provided with a magnetic block at one end away from the cavity plate, and a plurality of groups of the inclined rods are respectively provided with an adsorption block that can be magnetically connected to the magnetic block at one end away from the ejector plate. When the ejector plate moves toward the side of the core block until it abuts against the inclined ejector block, the magnetic block is magnetically connected to the adsorption block.

[0011] By adopting the above technical scheme, during the mold opening process, the possibility of the ejector rod failing to abut against the inclined ejector block is reduced through the magnetic connection between the magnetic block and the adsorption block, and the possibility of the inclined ejector block sliding off the core plate is reduced; during the mold closing process, the ejector plate drives the inclined rod to slide toward the side away from the core plate, and through the magnetic connection between the magnetic block and the adsorption block, the inclined rod drives the inclined ejector block to slide toward the side away from the cavity plate, so that the inclined ejector block returns to its position.

[0012] Preferably, one end of the inclined ejector block close to the cavity plate is fixedly connected to a limiting block, and a limiting groove which can cooperate with the limiting block is provided on the core plate. When the ejector plate moves toward the side away from the core block, the limiting block cooperates with the limiting groove.

[0013] By adopting the above technical solution, during the mold closing process, the position of the inclined lift block is limited to reduce the possibility of deviation of the inclined lift block, thereby improving the accuracy of the product.

[0014] Preferably, the ejection mechanism further comprises a plurality of groups of ejector pins and a plurality of groups of ejector rods, the plurality of groups of ejector pins respectively correspond to a plurality of molding surfaces on the core plate, the ends of the plurality of groups of ejector pins away from the cavity plate are respectively penetrated and slidably connected to the core plate along the mold opening direction of the mold, the plurality of groups of ejector rods respectively correspond to the plurality of groups of ejector pins, one ends of the plurality of groups of ejector rods are fixedly connected to the ejector plate, and when the ejector plate slides toward one side of the cavity plate, the plurality of groups of ejector rods respectively abut against the corresponding ejector pins in sequence.

[0015] By adopting the above technical solution, the product is further demoulded by the ejector pin, thereby reducing the possibility that the product cannot be demoulded or is difficult to demould.

[0016] Preferably, the lengths of the plurality of groups of ejector rods from the ejector rod located on the upper side of the ejector plate to the ejector rod located on the lower side of the fixed needle plate gradually become shorter.

[0017] By adopting the above technical solution, when the ejector plate moves, multiple groups of ejector rods on the ejector plate are moved from top to bottom in sequence to abut against multiple groups of ejector pins, so that multiple groups of ejector pins eject and demould the product from top to bottom at a time, reducing the possibility of products damaging each other during the demoulding process.

[0018] Preferably, it further comprises a plurality of pull ropes, both ends of which are fixedly connected to the ejector rod and the ejector pin respectively, and when the ejector pin plate slides to the limit position toward the side away from the cavity plate, the pull ropes are in a taut state.

[0019] By adopting the above technical solution, when the mold is in the process of mold closing, multiple groups of ejector pins are pulled by multiple groups of pull ropes to return the multiple groups of ejector pins to their original positions.

[0020] Preferably, the ejector plate is fixedly connected to a plurality of guide posts, and ends of the plurality of guide posts away from the ejector plate are respectively penetrated and slidably connected to the core plate along the mold opening direction of the mold.

[0021] By adopting the above technical solution, the sliding of the ejector plate is guided by a plurality of guide columns, thereby reducing the possibility that the ejector rod or the inclined rod cannot abut against the ejector pin or the inclined ejector block.

[0022] The technical effects of this utility model are mainly reflected in the following aspects:

[0023] 1. The utility model makes the inclined rods abut against the inclined ejector blocks in sequence, and ejects the products through the ejection mechanism, so that multiple groups of inclined rods abut against the inclined ejector blocks in sequence, so that multiple groups of inclined ejector blocks move toward the side away from the ejector plate in sequence to eject the products, so as to achieve the effect of demoulding multiple products in sequence, and reduce the possibility of products hitting each other during demoulding;

[0024] 2. The utility model gradually shortens the length of the inclined rod located on the upper side of the ejector plate to the inclined rod located on the lower side of the ejector plate. When the ejector plate moves, multiple groups of inclined rods on the ejector plate move from top to bottom in sequence to abut against the inclined rods, so that multiple groups of inclined ejector blocks eject and demould the products from top to bottom at a time, thereby reducing the possibility of products being damaged by each other during demoulding;

[0025] 3. The utility model provides a magnetic block and an adsorption block. During the mold opening process, the magnetic connection between the magnetic block and the adsorption block is used to reduce the possibility that the ejector rod cannot abut against the inclined ejector block, and the possibility that the inclined ejector block slides off the core plate and falls off is reduced; during the mold closing process, the ejector plate drives the inclined rod to slide toward the side away from the core plate, and the magnetic connection between the magnetic block and the adsorption block is used to make the inclined rod drive the inclined ejector block to slide toward the side away from the cavity plate, so that the inclined ejector block returns to its position. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the core plate structure of an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the cavity plate structure of an embodiment of the present application.

[0029] Figure 4 It is a schematic diagram of the ejection structure of an embodiment of the present application.

[0030] Figure 5 It is a schematic diagram of the pull rope structure of an embodiment of the present application.

[0031] Figure 6 It is a schematic diagram of the product structure of the embodiment of the present application.

[0032] Explanation of the accompanying drawings: 1. core plate; 11. core block; 111. limiting groove; 2. cavity plate; 21. cavity block; 3. ejector plate; 31. guide column; 4. ejector mechanism; 41. inclined ejector block; 411. magnetic suction block; 412. limiting block; 42. inclined rod; 421. suction block; 43. ejector; 431. pull rope; 44. ejector rod; 5. plastic cover patch. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0034] The embodiment of the present application discloses a plastic cover patch injection molding die.

[0035] Reference Figure 1-Figure 5 The present embodiment is a plastic cover patch injection molding mold, comprising a core plate 1 and a cavity plate 2, wherein a core block 11 with eight product molding surfaces is fixedly connected to the core plate 1, and the molding surfaces of the eight products are arranged in a square shape on the core block 11, and a core block 11 with eight product molding surfaces corresponding to the core block 11 is fixedly connected to the cavity plate 2. It also comprises an ejection mechanism 4, which is used to demold the eight molded products in sequence, and the ejection mechanism 4 comprises eight groups of inclined ejector blocks 41 with product molding surfaces and eight groups of inclined rods 42, and when the mold is closed, the molding surfaces on the cavity plate 2, the core plate 1 and the eight groups of inclined ejector blocks 41 together form eight groups of molding cavities for molding products.

[0036] Reference Figure 1-Figure 5The eight groups of inclined ejector blocks 41 correspond to the eight molding surfaces on the core plate 1 respectively. The ends of the eight groups of inclined ejector blocks 41 away from the cavity plate 2 are respectively penetrated and slidably connected to the core plate 1 and the core block 11 along the mold opening direction inclined to the mold. The side of the core plate 1 away from the cavity plate 2 is slidably connected to the ejector plate 3 along the vertical direction. The eight groups of inclined rods 42 correspond to the eight groups of inclined ejector blocks 41 respectively. One end of the eight groups of inclined rods 42 is slidably connected to the ejector plate 3 along the mold opening direction perpendicular to the mold. One end of the eight groups of inclined ejector rods 44 away from the ejector plate 3 is slidably connected to the core block 11 along the sliding direction of the inclined ejector block 41. The length of the eight groups of inclined rods 42 from the inclined rods 42 located on the upper side of the ejector plate 3 to the inclined rods 42 located on the lower side of the ejector plate 3 gradually becomes shorter, that is, the spacing between the eight groups of inclined rods 42 and the eight groups of inclined ejector blocks 41 becomes longer from top to bottom. When the ejector plate 3 moves toward the side of the core block 11, the eight groups of inclined rods 42 abut against the corresponding inclined ejector blocks 41 in sequence.

[0037] Reference Figure 1-Figure 5 Each group of inclined ejector blocks 41 includes two inclined ejector blocks 41, and each group of inclined rods 42 includes two inclined rods 42, and the two inclined rods 42 correspond to the two inclined ejector blocks 41; when the mold is in the mold closing state, the side surface of the inclined ejector block 41 away from the ejector plate 3 is flush with the non-molding surface of the core block 11, and the non-molding surface of the cavity block 21 abuts against the side surface of the inclined ejector block 41 away from the ejector plate 3, reducing the possibility that the inclined ejector block 41 is not fully returned to its original position, so as to improve the precision of the product.

[0038] Reference Figure 1-Figure 5 The product is ejected through the ejection mechanism 4. When the ejector plate 3 moves, the multiple groups of inclined rods 42 on the ejector plate 3 move from top to bottom in sequence until they abut against the inclined rods 42, so that the eight groups of inclined ejector blocks 41 move in sequence toward the side away from the ejector plate 3 to eject the product. The eight groups of inclined ejector blocks 41 eject and demould the product from top to bottom at a time, reducing the possibility of products hitting each other during the demoulding process.

[0039] Reference Figure 1-Figure 5 , one end of each inclined ejector block 41 away from the cavity plate 2 is fixedly connected with a magnetic block 411, and one end of each inclined rod 42 away from the ejector plate 3 is fixedly connected with an adsorption block 421 that can be magnetically connected to the magnetic block 411. When the ejector plate 3 moves toward the side of the core block 11 to abut against the inclined ejector block 41, the magnetic block 411 is magnetically connected to the adsorption block 421. During the mold opening process, the magnetic connection between the magnetic block 411 and the adsorption block 421 reduces the possibility that the ejector rod 44 cannot abut against the inclined ejector block 41, and reduces the possibility that the inclined ejector block 41 slides off the core plate 1; during the mold closing process, the ejector plate 3 drives the inclined rod 42 to slide toward the side away from the core plate 1, and through the magnetic connection between the magnetic block 411 and the adsorption block 421, the inclined rod 42 drives the inclined ejector block 41 to slide toward the side away from the cavity plate 2, so that the inclined ejector block 41 returns to its position.

[0040] Reference Figure 1-Figure 5 The end of the inclined ejector block 41 close to the cavity plate 2 is fixedly connected to the limiting block 412, and the core block 11 is provided with a limiting groove 111 that can cooperate with the limiting block 412. When the ejector plate 3 moves toward the side away from the core block 11, the limiting block 412 cooperates with the limiting groove 111. During the mold closing process, the position of the inclined ejector block 41 is limited to reduce the possibility of deviation of the inclined ejector block 41, so as to improve the precision of the product.

[0041] Reference Figure 1-Figure 5 The ejection mechanism 4 also includes eight ejector pins 43 and eight ejector rods 44. The eight ejector pins 43 correspond to the eight molding surfaces on the core plate 1. The ends of the eight ejector pins 43 away from the cavity plate 2 are respectively penetrated and connected to the core plate 1 and the core block 11 in a sliding manner along the mold opening direction of the mold. The eight ejector rods 44 correspond to eight groups of ejector pins 43. One end of the eight ejector rods 44 is fixedly connected to the ejector plate 3. The length of the eight ejector rods 44 from the ejector pin 44 on the upper side of the ejector plate 3 to the ejector pin 44 on the lower side of the fixed pin plate gradually shortens. When the ejector plate 3 slides toward the side of the cavity plate 2, the eight ejector rods 44 abut against the corresponding ejector pins 43 in sequence.

[0042] Reference Figure 1-Figure 5 The ejector pins 43 are used to further demould the product, reducing the possibility that the product cannot be demoulded or is difficult to demould. When the ejector plate 3 moves, the multiple groups of ejector pins 44 on the ejector plate 3 move from top to bottom in sequence to abut against the multiple groups of ejector pins 43, so that the multiple groups of ejector pins 43 eject and demould the product from top to bottom at a time, reducing the possibility of products being damaged by each other during the demoulding process.

[0043] Reference Figure 1-Figure 5 , and also includes eight pull ropes 431, the eight pull ropes 431 correspond to eight ejector pins 43, the two ends of the eight pull ropes 431 are fixedly connected to the corresponding ejector rods 44 and ejector pins 43, the opposite end faces of the ejector rods 44 and ejector pins 43 are coaxial and have inner hole thread grooves, the pull ropes 431 are steel wire ropes, the two ends of the pull ropes 431 are welded to the threaded columns, the threaded columns at the two ends of the pull ropes 431 are coaxial and threaded in the inner hole thread grooves, when the ejector plate 3 slides to the extreme position away from the cavity plate 2, the pull ropes 431 are in a taut state. When the mold is in the process of closing the mold, multiple groups of ejector pins 43 are pulled by multiple groups of pull ropes 431 to return the eight ejector pins 43 to their original positions.

[0044] Reference Figure 1-Figure 5The ejector plate 3 is fixedly connected with four guide posts 31, and the ends of the four guide posts 31 away from the ejector plate 3 are respectively penetrated and slidably connected to the core plate 1 along the mold opening direction of the mold. The four guide posts 31 guide the sliding of the ejector plate 3, reducing the possibility that the ejector rod 44 or the inclined rod 42 cannot abut against the ejector pin 43 or the inclined ejector block 41.

[0045] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A plastic cover patch injection molding mold, comprising a core plate (1) with multiple product molding surfaces and a cavity plate (2), characterized in that: The molded product further comprises an ejection mechanism (4), wherein the ejection mechanism (4) is used to sequentially demold a plurality of molded products, wherein the ejection mechanism (4) comprises a plurality of inclined ejector blocks (41) with product molding surfaces and a plurality of inclined rods (42), wherein the plurality of inclined ejector blocks (41) respectively correspond to a plurality of molding surfaces on the core plate (1), and the ends of the plurality of inclined ejector blocks (41) away from the cavity plate (2) are respectively penetrated and slidably connected to the core plate (1) along a direction inclined to the mold opening direction of the mold. 1), a side of the core plate (1) away from the cavity plate (2) is slidably connected to an ejector plate (3) in a vertical direction, a plurality of groups of inclined rods (42) respectively correspond to a plurality of groups of inclined ejector blocks (41), one end of the plurality of groups of inclined rods (42) is slidably connected to the ejector plate (3) in a direction perpendicular to the mold opening direction of the mold, and when the ejector plate (3) moves toward one side of the core block (11), the plurality of groups of inclined rods (42) respectively abut against the corresponding inclined ejector blocks (41) in sequence.

2. A plastic cover patch injection molding mold according to claim 1, characterized in that: The lengths of the multiple groups of inclined rods (42) gradually become shorter from the inclined rods (42) located on the upper side of the ejector plate (3) to the inclined rods (42) located on the lower side of the ejector plate (3).

3. A plastic cover patch injection molding mold according to claim 2, characterized in that: A plurality of groups of inclined ejector blocks (41) are respectively provided with a magnetic attraction block (411) at one end away from the cavity plate (2), and a plurality of groups of inclined rods (42) are respectively provided with an adsorption block (421) that can be magnetically connected to the magnetic attraction block (411) at one end away from the ejector plate (3). When the ejector plate (3) moves toward one side of the core block (11) until it abuts against the inclined ejector block (41), the magnetic attraction block (411) is magnetically connected to the adsorption block (421).

4. The plastic cover patch injection molding mold according to claim 3, characterized in that: One end of the inclined ejector block (41) close to the cavity plate (2) is fixedly connected to a limit block (412); a limit groove (111) which can cooperate with the limit block (412) is provided on the core plate (1); when the ejector plate (3) moves toward a side away from the core block (11), the limit block (412) cooperates with the limit groove (111).

5. The plastic cover patch injection molding mold according to claim 1, characterized in that: The ejection mechanism (4) further comprises a plurality of groups of ejector pins (43) and a plurality of groups of ejector rods (44); the plurality of groups of ejector pins (43) respectively correspond to a plurality of molding surfaces on the core plate (1); one end of the plurality of groups of ejector pins (43) away from the cavity plate (2) is respectively penetrated and slidably connected to the core plate (1) along the mold opening direction of the mold; the plurality of groups of ejector rods (44) respectively correspond to the plurality of groups of ejector pins (43); one end of the plurality of groups of ejector rods (44) is fixedly connected to the ejector plate (3); when the ejector plate (3) slides toward one side of the cavity plate (2), the plurality of groups of ejector rods (44) respectively abut against the corresponding ejector pins (43) in sequence.

6. The plastic cover patch injection molding mold according to claim 5, characterized in that: The lengths of the plurality of groups of push rods (44) from the push rods (44) located on the upper side of the push needle plate (3) to the push rods (44) located on the lower side of the fixed needle plate gradually become shorter.

7. The plastic cover patch injection molding mold according to claim 5, characterized in that: It also includes a plurality of groups of pull ropes (431), the two ends of which are respectively fixedly connected to the ejector rod (44) and the ejector pin (43). When the ejector pin plate (3) slides to an extreme position toward a side away from the cavity plate (2), the pull ropes (431) are in a tensioned state.

8. The plastic cover patch injection molding mold according to claim 1, characterized in that: The ejector plate (3) is fixedly connected to a plurality of guide posts (31), and the ends of the plurality of guide posts (31) away from the ejector plate (3) are respectively penetrated and slidably connected to the core plate (1) along the mold opening direction of the mold.

Images