Mold for processing plastic product

Abstract

The utility model relates to the technical field of plastic processing, in particular to a mould for processing a plastic product, which comprises an upper mould and a lower mould, the upper die consists of an upper plate, a bolt, a first spring, a model block, an inclined rod, a second spring and a fixed column; the upper plate is fixedly connected with the bolt, the bolt is fixedly connected with the inclined rod, the bottom end of the bolt is fixedly connected with the first spring, the inclined rod is fixedly connected with the model block, the fixed column is fixedly connected with the model block, and the second spring is fixedly connected between the upper plate and the model block. According to the mold for processing the plastic product, when a plastic raw material flows in the molding grooves, fluid at all positions of the two groups of molding grooves is kept equal, so that the plastic raw material circulates in the molding grooves when the model blocks extrude the interiors of the molding grooves, and the situation that the thicknesses of molded plastic parts are different is avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to a mold for processing plastic products. Background Technology

[0002] Plastic processing molds are mainly used for molding thermoplastic products. Their working principle is to heat and melt the plastic raw material in the heating barrel of the injection molding machine, and then, under the push of the screw or plunger of the injection molding machine, enter the mold cavity through the injection nozzle and the gating system of the mold. After cooling and hardening, the product is demolded.

[0003] To improve production efficiency and product quality, mold design and manufacturing processes are increasingly emphasizing the application of high-efficiency and automated technologies. For example, using CAD / CAM technology for mold design and manufacturing can significantly shorten production cycles and improve manufacturing precision.

[0004] Utility model application CN202420363868.7 discloses an injection molding die for processing plastic products, relating to the field of plastic injection molding technology. It includes a first die and a second die. The first die includes a first mating plate with a rectangular groove on one side. Multiple molding columns are integrally arranged within the rectangular groove. L-shaped toothed plates are provided on both sides of the first mating plate. The second die includes a second mating plate with gears mounted on both sides via mounting brackets. These gears mate with the toothed plates. A pusher assembly is movably installed between the first and second mating plates. In use, the pusher assembly is movably installed between the first and second die, with a push rod in the pusher assembly penetrating the first mating plate and a push plate embedded in the rectangular groove on the first mating plate. This ensures that the push plate is flush with the first mating plate when the first and second die are engaged, thus not affecting the injection molding quality.

[0005] The aforementioned patent uses gears to make the first mold and the second mold flush, which does not affect the injection molding quality. However, when processing plastic cover-type parts, keeping the top mold flush with the gears is too complicated. It cannot make the top mold self-adapt to the flush position, and the method of matching the top mold with the bottom mold is too complicated and not practical.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this utility model is to provide a mold for processing plastic products that can effectively solve the above-mentioned technical problems.

[0008] To achieve the purpose of this utility model, the following technical solution is adopted:

[0009] A mold for processing plastic products includes: an upper mold and a lower mold;

[0010] The upper mold consists of an upper plate, bolts, a first spring, a model block, a diagonal brace, a second spring, and a fixing post. The upper plate is fixedly connected to the bolts, the bolts are fixedly connected to the diagonal brace, the bottom of the bolts is fixedly connected to the first spring, the diagonal brace is fixedly connected to the model block, the fixing post is fixedly connected to the model block, and the second spring is fixedly connected between the upper plate and the model block.

[0011] Furthermore, the lower mold includes a base and a forming groove; the base is fixedly connected to the forming groove, and the forming groove is adapted to the model block.

[0012] Furthermore, the top of the upper mold is provided with an upper cover, which consists of an mounting plate, a support plate, and a connecting plate; the mounting plate is fixedly connected to the support plate, the support plate is fixedly connected to the connecting plate, and the connecting plate is connected to the base by bolts and threads.

[0013] Furthermore, both the forming groove and the model block are provided in two sets, and a short groove is provided between the two sets of forming grooves and the model block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The mold for processing plastic products of the present invention maintains the fluid uniformity at each position of the two molding grooves when the plastic raw material flows in the molding groove, so that when the mold block is squeezed inside the molding groove, the plastic raw material flows in the molding groove and there will be no uneven thickness of the plastic parts after molding. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the structure of a mold for processing plastic products according to this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a mold for processing plastic products according to this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the upper cover of a mold for processing plastic products according to this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the upper mold of a mold for processing plastic products according to this utility model.

[0020] In the diagram: 1. Top cover; 11. Mounting plate; 12. Support plate; 13. Connecting plate; 2. Upper mold; 21. Upper plate; 22. Bolt; 23. First spring; 24. Model block; 25. Diagonal bar; 26. Second spring; 27. Fixing column; 3. Lower mold; 31. Base; 32. Molding groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there may be an intervening mechanism at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 4 As shown, a mold for processing plastic products includes: an upper mold 2 and a lower mold 3;

[0024] The upper mold 2 consists of an upper plate 21, bolts 22, a first spring 23, a model block 24, a diagonal rod 25, a second spring 26, and a fixing post 27. The upper plate 21 is fixedly connected to the bolts 22, the bolts 22 are fixedly connected to the diagonal rod 25, the bottom end of the bolts 22 is fixedly connected to the first spring 23, the diagonal rod 25 is fixedly connected to the model block 24, the fixing post 27 is fixedly connected to the model block 24, and the second spring 26 is fixedly connected between the upper plate 21 and the model block 24. The first spring 23 plays a resetting role on the diagonal rod 25 and is fixedly connected to the spring through the end of the diagonal rod 25. Multiple sets of the first spring 23 and the diagonal rod 25 are provided. When the first spring 23 presses the model block 24 downward, it makes the model block 24 conform to the forming groove 32 downward, and keeps it flush with all positions of the forming groove 32. This ensures that the thickness of the plastic raw material and the plastic parts are equal at all positions during molding, thus guaranteeing the strength of the finished plastic product.

[0025] The lower mold 3 includes a base 31 and a forming groove 32; the base 31 and the forming groove 32 are fixedly connected, and the forming groove 32 is adapted to the model block 24; the plastic raw material is extruded on the model block 24, and the base 31 is square to ensure the flatness of the mold placed on the horizontal surface.

[0026] The upper mold 2 is provided with an upper cover 1, which is composed of an mounting plate 11, a support plate 12, and a connecting plate 13. The mounting plate 11 is fixedly connected to the support plate 12, the support plate 12 is fixedly connected to the connecting plate 13, and the connecting plate 13 is threadedly connected to the base 31 by bolts 22. By placing the mounting plate 11 horizontally, the support plate 12 vertically, and the connecting plate 13 horizontally, the upper mold 2 is positioned at the bottom of the mounting plate 11 and beside the support plate 12, providing sufficient space for the upper mold 2 to be placed and allowing the mounting plate 11 to be connected to the base 31 by bolts 22, which facilitates injection molding and disassembly.

[0027] As a supplement: both the molding groove 32 and the model block 24 are provided in two sets, and a short groove is provided between the two sets of molding groove 32 and the model block 24; when the plastic raw material flows in the molding groove 32, the fluid is kept equal at each position of the two sets of molding groove 32, so that when the model block 24 squeezes the inside of the molding groove 32, the plastic raw material flows in the molding groove 32, and there will be no uneven thickness of the plastic parts after molding.

[0028] Working principle:

[0029] When the first spring 23 presses the model block 24 downwards, it ensures that the model block 24 is flush with the molding groove 32 at all positions, so that the thickness of the plastic material and the plastic parts are equal at all positions during molding, thus guaranteeing the strength of the finished plastic product. The horizontal mounting plate 11, the vertical support plate 12, and the horizontal connecting plate 13 are positioned so that the upper mold 2 is at the bottom of the mounting plate 11 and beside the support plate 12, providing sufficient space for the upper mold 2. This also allows the mounting plate 11 and the base 31 to be connected by bolts 22, facilitating injection molding and disassembly. When the plastic material flows in the molding groove 32, the fluid is kept equal at all positions of the two molding grooves 32, ensuring that the plastic material flows smoothly within the molding groove 32 when the model block 24 is pressed inside, preventing uneven thickness of the molded plastic parts.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A mold for processing a plastic product, characterized by comprising: Include: Upper die, lower die; The upper die is composed of an upper plate, a bolt, a first spring, a model block, an inclined rod, a second spring and a fixed column. The upper plate is fixedly connected with the bolt, the bolt is fixedly connected with the inclined rod, the bottom end of the bolt is fixedly connected with the first spring, the inclined rod is fixedly connected with the model block, the fixed column is fixedly connected with the model block, and the second spring is fixedly connected between the upper plate and the model block.

2. A mold for processing a plastic product according to claim 1, wherein The lower die includes a base and a forming groove. The base is fixedly connected with the forming groove, and the forming groove is matched with the model block.

3. A mold for processing a plastic product according to claim 2, wherein The upper die is provided with an upper cover at the top. The upper cover is composed of a mounting plate, a supporting plate and a connecting plate. The mounting plate is fixedly connected with the supporting plate, the supporting plate is fixedly connected with the connecting plate, and the connecting plate is threadedly connected with the base through the bolt.

4. A mold for processing a plastic product according to claim 2, wherein The forming groove and the model block are each provided with two groups, and a short groove is arranged between the two groups of forming grooves and model blocks.

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