Plastic product mold

Abstract

The utility model discloses a plastic product mould which comprises a mould frame and a mould core, the mould frame is provided with a mould core installation groove used for installing the mould core, the side face, parallel to the mould closing direction, of the mould frame is provided with an open groove penetrating to the mould core installation groove, and the mould core can be pulled out from the side face of the mould frame from the open groove. Due to the arrangement of the grooves in the side surfaces, when the mold breaks down in production, the cavities corresponding to the mold cores can be pulled out of the mold frame from the side surfaces, and compared with the conventional manner of ejecting and disassembling a whole mold core, the action waste (the mold frame needs to be disassembled in the past) is avoided, the workload is reduced, and the maintenance period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of mold design and manufacturing, in particular to a plastic product mold. Background Art

[0002] There are many types of plastic products. Take wall sockets, wall switches and other types of plastic shell products as an example. Their products generally include panels, covers, frames and bases. These products are generally formed by injection molds.

[0003] Injection molds are generally composed of a mold frame and a mold core. During the production process, if the mold fails and causes product defects, it needs to be disassembled and repaired. Generally speaking, most failures occur in the mold core structure. Therefore, the mold core needs to be disassembled, repaired or replaced.

[0004] However, since the mold structure itself is relatively complex, disassembling the mold core requires disassembling multiple parts, such as the mold frame, which makes the entire maintenance process relatively long, the workload is large, the maintenance cycle is long, and the production efficiency is affected. Utility Model Content

[0005] The utility model aims to overcome the defects of the prior art and provide a plastic product mold.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A plastic product mold comprises a mold frame and a mold core, wherein the mold frame is provided with a mold core installation groove for installing the mold core, and the mold frame is provided with a groove penetrating to the mold core installation groove on the side parallel to the mold closing direction, and the mold core can be pulled out from the side of the mold frame through the groove.

[0008] Preferably, the mold frame includes a lower mold frame, the mold core mounting groove includes a first lower mold core mounting groove arranged on the lower mold frame, the first lower mold core mounting groove is located on the contact surface of the lower mold frame forming a mold parting surface, the mold core includes a first lower mold core, the first lower mold core is arranged in the first lower mold core mounting groove, the first side surface of the lower mold frame is provided with a first groove extending from the outside to the first lower mold core mounting groove, the first lower mold core can be pulled out from the first side surface through the first groove, and the first side surface is perpendicular to the mold parting surface.

[0009] Preferably, the first lower die core is provided with a first lower die core extension portion corresponding to the shape of the first groove at a position corresponding to the first groove, the first side surface is provided with first locking holes corresponding to both sides of the first groove, the first lower die core extension portion is provided with a second locking hole, and the lower die frame is also provided with a first locking accessory, and the first locking accessory is locked to the first locking hole and the second locking hole by a locking screw.

[0010] Preferably, the first lower die core is provided with a first disassembly aid extending to the outside of the lower die frame.

[0011] Preferably, the first disassembly aid and the first lower mold core are detachable.

[0012] Preferably, the mold core installation groove also includes a second lower mold core installation groove arranged on the lower mold frame, the mold core includes a second lower mold core, the second lower mold core is arranged in the second lower mold core installation groove, and the second side surface of the lower mold frame is provided with a second groove extending from the outside to the second lower mold core installation groove, and the second lower mold core can be pulled out from the second side surface through the second groove.

[0013] Preferably, the second lower die core installation groove is spaced apart from the first lower die core installation groove, and the second side surface is opposite to the first side surface.

[0014] Preferably, a first positioning block mounting groove is provided in the interval area between the second lower mold core mounting groove and the first lower mold core mounting groove, a removable first positioning block is provided on the first positioning block mounting groove, and a lower mold core intermediate runner is provided on the first positioning block for connecting the runners of the first lower mold core and the second lower mold core.

[0015] Preferably, the lower mold frame includes: a lower mold plate, a lower mold foot supporting the lower mold plate, and a lower fixed plate supporting the lower mold foot; the lower mold plate includes: a first lower mold plate, a second lower mold plate and a middle partition plate, the first lower mold plate is two and is spaced apart to form the first lower mold core mounting groove, the second lower mold core mounting groove, the first slot, the second slot and the side wall of the positioning block mounting groove, the middle partition plate is placed at the lower part of the first lower mold plate to form the bottom wall of the first lower mold core mounting groove and the second lower mold core mounting groove, and the second lower mold plate is placed at the bottom of the middle partition plate to support the middle partition plate and form the bottom wall of the positioning block mounting groove.

[0016] Preferably, the mold frame includes an upper mold frame, the mold core installation groove includes a first upper mold core installation groove and a second upper mold core installation groove arranged on the upper mold frame, the mold core includes a first upper mold core and a second upper mold core, the first upper mold core and the second upper mold core are respectively arranged in the first upper mold core installation groove and the second upper mold core installation groove, the third side surface and the fourth side surface of the upper mold frame are respectively provided with a third slot and a fourth slot penetrating from the outside to the first lower mold core installation groove, the first upper mold core installation groove and the second upper mold core installation groove, the first upper mold core and the second upper mold core can be respectively drawn out from the third slot and the fourth slot from the third side surface and the fourth side surface;

[0017] A second positioning block installation groove is provided in the interval area between the first upper mold core installation groove and the second upper mold core installation groove, a detachable second positioning block is provided on the second positioning block, and an upper mold core intermediate runner is provided on the second positioning block for connecting the runners of the first upper mold core and the second upper mold core;

[0018] The upper mold frame includes an upper mold plate and an upper fixing plate, and the first upper mold core mounting groove, the second upper mold core mounting groove, the second positioning block mounting groove, the third slot and the fourth slot are formed on the upper mold plate.

[0019] Compared with the existing molds, the plastic product mold of the utility model has the following advantages:

[0020] Firstly, due to the setting of the side slots, when a mold fails during production, the cavity corresponding to the mold core can be pulled out of the mold frame from the side. This is different from the previous method of ejecting and disassembling the entire mold core, avoiding waste of motion (previously requiring disassembly of the mold frame), reducing workload, and thus shortening the maintenance cycle.

[0021] Secondly, due to the setting of the slots, there are more force points for grabbing the mold core when installing or disassembling the bench mold, thereby reducing the energy consumed during installation or disassembly; increasing the fault tolerance rate and reducing the possibility of damage to the mold core and safety accidents.

[0022] Secondly, when the mold core failure occurs in one side of the cavity, a mold frame can be used to load different types of good products on both sides. The faulty cavity side can be pulled off the machine for maintenance, while the normal side can work normally to meet production needs. Under specific production needs, a mold frame can directly load different types of products on the side to improve the production efficiency of different product needs.

[0023] Finally, multiple products share one mold frame, reducing mold frame costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a plastic product mold according to an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the exploded structure of the upper and lower molds of the plastic product mold of the utility model embodiment;

[0026] Figure 3 It is a schematic diagram of the structure of the lower mold frame and the disassembly and installation direction of the first lower mold core in the embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the installation of the first lower mold core and the first positioning block in the embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of the upper mold frame and the installation of the first upper mold core in an embodiment of the utility model.

[0029] In the figure:

[0030] Lower mold frame 100, lower mold plate 101, lower mold foot 102, lower fixing plate 103, first locking hole 105, first lower mold plate 1011, second lower mold plate 1012, middle partition plate 1013, first lower mold core mounting groove 110, first slot 111, second slot 112, first lower mold core 120, first lower mold core extension 121, second locking hole 122, disassembly auxiliary part 127, first locking accessory 130, second lower mold core mounting groove 140, second lower mold core 150, positioning block mounting groove 160, first positioning block 170, lower mold core intermediate runner 171;

[0031] Upper mold frame 200, upper mold plate 201, upper fixing plate 203, first upper mold core mounting groove 210, third slot 211, fourth slot 212, first upper mold core 220, second upper mold core mounting groove 240, second upper mold core 250, second positioning block 270, upper mold core middle runner 271;

[0032] The first side surface 11 , the second side surface 12 , the third side surface 21 , and the fourth side surface 22 . DETAILED DESCRIPTION

[0033] The following embodiments are given in conjunction with the accompanying drawings to further illustrate the specific implementation of the plastic product mold of the present utility model. The plastic product mold of the present utility model is not limited to the description of the following embodiments.

[0034] The plastic product mold of this embodiment is mainly used for the plastic shell molding of products such as wall switches and wall sockets. The structural composition of wall switches and wall sockets is basically similar, mainly composed of a panel, a cover plate, and a base. Some products also include structures such as a middle frame or a mounting frame. Of course, the plastic product mold of this embodiment can also be used to mold shells, components or parts of other products by replacing different mold cores.

[0035] like Figure 1 , 5 As shown, the utility model provides a plastic product mold, including a mold frame and a mold core, the mold frame is provided with a mold core installation groove for installing the mold core, the mold frame is provided with a slot penetrating to the mold core installation slot on the side parallel to the mold closing direction, and the mold core can be pulled out from the side of the mold frame through the slot. Among them, the mold core generally includes an upper mold core and a lower mold core, and the upper mold core and the lower mold core are provided with molding features for forming product structural features. The cavity formed by the molding features of the upper mold core and the lower mold core after the mold closing is the product cavity, which is used to inject plastic and form a specific product shape. In this embodiment 1, the mold closing direction is Figure 1The mold frame of the entire mold generally includes an upper mold frame and a lower mold frame, which are respectively used to assemble the upper mold core, the lower mold core and related auxiliary systems, such as the ejector system. The upper mold frame and the lower mold frame move up and down to contact and close the mold to form a product cavity. The mold parting surface is formed between the upper mold frame and the lower mold frame, that is, the contact surface between the upper mold frame and the lower mold frame forms the mold parting surface. The mold core installation groove is provided on the relative contact surface of the upper mold frame and the lower mold frame, and the above-mentioned groove is provided on the side of the upper mold frame and the lower mold frame perpendicular to the mold parting surface.

[0036] As a specific implementation method, Figure 1-4 As shown, the mold frame includes a lower mold frame 100, the mold core installation groove includes a first lower mold core installation groove 110 arranged on the lower mold frame 100, the first lower mold core installation groove 110 is located on the contact surface of the lower mold frame 100 forming the mold parting surface, the mold core includes a first lower mold core 120, the first lower mold core 120 is arranged in the first lower mold core installation groove 110, the first side surface 11 of the lower mold frame 100 is provided with a first slot 111 penetrating from the outside to the first lower mold core installation groove 110, and the first lower mold core 120 can be drawn out from the first side surface 11 through the first slot 111. Of course, when installing, the first lower mold core 120 is also inserted and installed from the first side surface 11 through the first slot 111. An ejector system 300 is also provided inside the mold frame. When disassembling or installing the first lower mold core 120, the ejector of the ejector system 300 can be withdrawn to the bottom of the first lower mold core 120 to facilitate smooth extraction or insertion of the first lower mold core 120. In this embodiment, the first side surface 11 is a side surface perpendicular to the mold parting surface (taking the horizontal parting surface of this embodiment as an example), or the first side surface 11 is a side surface parallel to the closing direction of the upper mold frame 200 and the lower mold frame 100.

[0037] In this embodiment, the first lower mold core 120 is provided with a first lower mold core extension portion 121 corresponding to the shape of the first groove 111 at a position corresponding to the first groove 111, the first side surface 11 is provided with first locking holes 105 corresponding to both sides of the first groove 111, the first lower mold core extension portion 121 is provided with a second locking hole 122, and the lower mold frame 100 is further provided with a first locking accessory 130, and the first locking accessory 130 is locked to the first locking hole 105 and the second locking hole 122 by locking screws.

[0038] It is worth noting that even if the first lower mold core extension portion 121 is not provided, the first lower mold core 120 can also be withdrawn, but providing the first lower mold core extension portion 121 can more conveniently provide a locking accessory for locking and positioning.

[0039] In this embodiment, the first lower mold core 120 is provided with a first disassembly aid 127 extending to the outside of the lower mold frame 100, which helps to quickly disassemble the first lower mold core 120. The disassembly aid 127 can be a T-shaped handle, a concave handle or other types of structures that help to apply force to pull out.

[0040] Furthermore, the first disassembly auxiliary member 127 and the first lower die core 120 are detachably arranged, for example, they can be threaded or snap-fitted, etc. When it is necessary to disassemble and extract the first lower die core 120, the disassembly auxiliary member 127 can be installed to facilitate disassembly, and when it is not necessary to disassemble and repair, the disassembly auxiliary member 127 can be removed.

[0041] In this embodiment, the mold core installation groove also includes a second lower mold core installation groove 140 provided on the lower mold frame 100, the mold core includes a second lower mold core 150, the second lower mold core 150 is provided in the second lower mold core installation groove 140, the second side surface 12 of the lower mold frame 100 is provided with a second slot 112 extending from the outside to the second lower mold core installation groove 140, and the second lower mold core 150 can be pulled out from the second side surface 12 through the second slot 112. The second lower mold core 150 and the first lower mold core 120 may have the same molding features and may mold the same product structure, or may have different molding features and may mold different product structures. In addition, the mold may quickly disassemble one or both of the second lower mold core 150 and the first lower mold core 120 without disassembling the mold frame, and replace them with lower mold cores of other products, thereby realizing that one mold frame is common to multiple products and reducing mold development costs.

[0042] The structure of the second lower mold core 150 is the same as or similar to that of the first lower mold core 120 , that is, it also has an extension portion and a disassembly auxiliary component (not shown in the figure) so that it can be disassembled in the same manner.

[0043] Of course, the molding features of two products can also be placed in one mold core at the same time, but this approach reduces the flexibility and replaceability of the mold core.

[0044] Furthermore, the second lower die core installation groove 140 is spaced apart from the first lower die core installation groove 110 , and the second side surface 12 and the first side surface 11 are opposite surfaces.

[0045] In this embodiment, a first positioning block installation groove 160 is provided in the interval area between the second lower mold core installation groove 140 and the first lower mold core installation groove 110, and a detachable first positioning block 170 is provided on the first positioning block installation groove 160. The first positioning block 170 is provided with a lower mold core intermediate runner 171 for connecting the runners of the first lower mold core 120 and the second lower mold core 150. The first positioning block 170 can be used to locate the positions of the first lower mold core 120 and the second lower mold core 150, and at the same time, the lower mold core intermediate runner 171 is provided to achieve the connection of the runners. In addition, when replacing mold cores corresponding to different products, if the runners have position changes, the runners of the two mold cores can also be connected by replacing the first positioning block 170.

[0046] In this embodiment, the lower mold frame 100 includes: a lower mold plate 101, a lower mold foot 102 supporting the lower mold plate 101, and a lower fixed plate 103 supporting the lower mold foot 102; the lower mold plate 101 includes: a first lower mold plate 1011, a second lower mold plate 1012 and a middle partition plate 1013, the first lower mold plate 1011 is two and is spaced apart to form the first lower mold core mounting groove 110, the second lower mold core mounting groove 140, the first slot 111, the second slot 142 and the side wall of the positioning block mounting groove 160, the middle partition plate 1013 is placed at the lower part of the first lower mold plate 1011 to form the bottom wall of the first lower mold core mounting groove 110 and the second lower mold core mounting groove 140, the second lower mold plate 1012 is placed at the bottom of the middle partition plate 1013 to support the middle partition plate 1013 and form the bottom wall of the positioning block mounting groove 160.

[0047] In this embodiment, the mold frame includes an upper mold frame 200, and the mold core on the upper mold frame 200 corresponds to the mold core of the lower mold frame 100. Therefore, the mold core mounting groove includes a first upper mold core mounting groove 210 and a second upper mold core mounting groove 240 arranged on the upper mold frame 200, and the mold core includes a first upper mold core 220 and a second upper mold core 250, and the first upper mold core 220 and the second upper mold core 250 are respectively arranged in the first upper mold core mounting groove 210 and the second upper mold core mounting groove 240, and the third side 21 and the fourth side 22 of the upper mold frame 200 are respectively provided with a third groove 211 and a fourth groove 212 that penetrate from the outside to the first lower mold core mounting groove 110, the first upper mold core mounting groove 210 and the second upper mold core mounting groove 240, and the first upper mold core 220 and the second upper mold core 250 can be respectively pulled out from the third groove 211 and the fourth groove 212 from the third side 21 and the fourth side 22.

[0048] In this embodiment, the third side 21 and the fourth side 22 are also side surfaces perpendicular to the mold parting surface (taking the horizontal parting surface of this embodiment as an example), wherein the first side 11 and the third side 21 are the same side, and the second side 12 and the fourth side 22 are the same side. When the upper mold frame or the lower mold frame has two mold cores, the upper mold frame or the lower mold frame is a rectangular parallelepiped, and the first side 11, the second side 12, the third side 21, and the fourth side 22 can preferably be short side surfaces.

[0049] Furthermore, a second positioning block mounting groove 260 is provided in the interval area between the first upper mold core mounting groove 210 and the second upper mold core mounting groove 240, a removable second positioning block 270 is provided on the second positioning block mounting groove 260, and an upper mold core intermediate runner 271 is provided on the second positioning block 270 for connecting the runners of the first upper mold core 220 and the second upper mold core 250.

[0050] Furthermore, the upper mold frame 200 includes an upper mold plate 201 and an upper fixing plate 203 , and the first upper mold core mounting groove 210 , the second upper mold core mounting groove 240 , the second positioning block mounting groove 260 , the third slot 211 and the fourth slot 212 are formed on the upper mold plate 201 .

[0051] Similarly, the first upper mold core 220 and the second upper mold core 250 are also locked to the upper mold frame 200 through locking accessories, and are also provided with disassembly auxiliary parts to facilitate disassembly. The structure is similar to that of the lower mold core.

[0052] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0053] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A plastic product mold, comprising a mold frame and a mold core, wherein the mold frame is provided with a mold core mounting groove for mounting the mold core, characterized in that: The mold frame is provided with a slot extending through the mold core installation slot on a side surface parallel to the mold closing direction, and the mold core can be pulled out from the side surface of the mold frame through the slot; The mold frame comprises a lower mold frame (100), the mold core installation groove comprises a first lower mold core installation groove (110) arranged on the lower mold frame (100), the first lower mold core installation groove (110) is located on a contact surface of the lower mold frame (100) forming a mold parting surface, the mold core comprises a first lower mold core (120), the first lower mold core (120) is arranged in the first lower mold core installation groove (110), a first side surface (11) of the lower mold frame (100) is provided with a first slot (111) penetrating from the outside to the first lower mold core installation groove (110), the first lower mold core (120) can be drawn out from the first side surface (11) through the first slot (111), and the first side surface (11) is perpendicular to the mold parting surface.

2. The plastic product mold according to claim 1, characterized in that: The first lower mold core (120) is provided with a first lower mold core extension portion (121) corresponding to the shape of the first groove (111) at a position corresponding to the first groove (111), the first side surface (11) is provided with first locking holes (105) on both sides corresponding to the first groove (111), the first lower mold core extension portion (121) is provided with a second locking hole (122), and the lower mold frame (100) is further provided with a first locking accessory (130), and the first locking accessory (130) is locked to the first locking hole (105) and the second locking hole (122) by locking screws.

3. The plastic product mold according to claim 1 or 2, characterized in that: The first lower mold core (120) is provided with a first disassembly auxiliary part (127) extending to the outside of the lower mold frame (100).

4. The plastic product mold according to claim 3, characterized in that: The first disassembly auxiliary component (127) and the first lower mold core (120) are detachable.

5. The plastic product mold according to claim 1, characterized in that: The mold core installation groove also includes a second lower mold core installation groove (140) arranged on the lower mold frame (100), and the mold core includes a second lower mold core (150), and the second lower mold core (150) is arranged in the second lower mold core installation groove (140). The second side surface (12) of the lower mold frame (100) is provided with a second groove (142) penetrating from the outside to the second lower mold core installation groove (140), and the second lower mold core (150) can be pulled out from the second side surface (12) through the second groove (142).

6. The plastic product mold according to claim 5, characterized in that: The second lower die core installation groove (140) is spaced apart from the first lower die core installation groove (110), and the second side surface (12) and the first side surface (11) are opposite surfaces.

7. The plastic product mold according to claim 5, characterized in that: A first positioning block mounting groove (160) is provided in the interval area between the second lower mold core mounting groove (140) and the first lower mold core mounting groove (110), a detachable first positioning block (170) is provided on the first positioning block mounting groove (160), and a lower mold core intermediate runner (171) is provided on the first positioning block (170) for connecting the runners of the first lower mold core (120) and the second lower mold core (150).

8. The plastic product mold according to claim 7, characterized in that: The lower mold frame (100) comprises: a lower mold plate (101), a lower mold foot (102) supporting the lower mold plate (101), and a lower fixing plate (103) supporting the lower mold foot (102); the lower mold plate (101) comprises: a first lower mold plate (1011), a second lower mold plate (1012) and a middle partition plate (1013); the first lower mold plate (1011) is two and is arranged at intervals to form the first lower mold core installation groove (110), the second lower mold core installation groove (112), and the middle partition plate (1013). 40), the first slot (111), the second slot (142) and the side walls of the positioning block mounting slot (160), the middle partition plate (1013) is placed at the lower part of the first lower mold core mounting slot (110) and the bottom wall of the second lower mold core mounting slot (140), and the second lower mold core mounting slot (1012) is placed at the bottom of the middle partition plate (1013) to support the middle partition plate (1013) and form the bottom wall of the positioning block mounting slot (160).

9. The plastic product mold according to claim 5, characterized in that: The mold frame comprises an upper mold frame (200), the mold core installation groove comprises a first upper mold core installation groove (210) and a second upper mold core installation groove (240) arranged on the upper mold frame (200), the mold core comprises a first upper mold core (220) and a second upper mold core (250), the first upper mold core (220) and the second upper mold core (250) are respectively arranged in the first upper mold core installation groove (210) and the second upper mold core installation groove (240), and the upper mold frame (200) The third side surface (21) and the fourth side surface (22) are respectively provided with a third slot (211) and a fourth slot (212) which penetrate from the outside to the first lower die core installation slot (110), the first upper die core installation slot (210) and the second upper die core installation slot (240); the first upper die core (220) and the second upper die core (250) can be respectively drawn out from the third side surface (21) and the fourth side surface (22) through the third slot (211) and the fourth slot (212); A second positioning block mounting groove (260) is provided in the interval area between the first upper mold core mounting groove (210) and the second upper mold core mounting groove (240); a detachable second positioning block (270) is provided on the second positioning block mounting groove (260); and an upper mold core intermediate runner (271) is provided on the second positioning block (270) for connecting the runners of the first upper mold core (220) and the second upper mold core (250); The upper mold frame (200) comprises an upper mold plate (201) and an upper fixing plate (203), and the first upper mold core mounting groove (210), the second upper mold core mounting groove (240), the second positioning block mounting groove (260), the third slot (211) and the fourth slot (212) are formed on the upper mold plate (201).

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