Plastic processing mold capable of limiting workpiece

Abstract

The plastic processing mold comprises an upper mold base and a lower mold base arranged on the lower side of the upper mold base, an injection molding opening is formed in the inner side of the middle of the upper mold base, an injection molding cavity is formed in the inner side of the middle of the lower mold base, and clamping cavities are formed in the two ends of the left side of the injection molding cavity respectively. Clamping blocks are arranged at the positions of the inner sides of the clamping cavities, adjusting rods are arranged outside the two clamping blocks and connected with the lower mold base, a plurality of adjusting plates are arranged at the positions of the inner sides of the middles of the two clamping blocks, the positions of the clamping blocks are changed by screwing the adjusting rods, then the adjusting plates are extruded or loosened, and the shape of one side of the injection molding cavity can be flexibly adjusted; therefore, injection molding workpieces of different models can be adapted. Therefore, the same set of mold can be used for producing various injection molding parts with different shapes, the universality of the mold is greatly improved, the cost of purchasing a plurality of sets of molds for producing different products by an enterprise is reduced, and the use efficiency of the mold is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic processing molds, specifically relating to a plastic processing mold for workpiece positioning. Background Technology

[0002] In the plastics processing industry, precise workpiece positioning is crucial for product quality. Traditional molds often suffer from insufficient precision and poor stability in workpiece positioning, resulting in a high product defect rate. Therefore, a new type of plastic processing mold for workpiece positioning has been developed.

[0003] In existing technologies, many plastic processing molds are typically designed and manufactured specifically for a particular type of injection molded part. A single mold can often only produce one or a few similar products. When it is necessary to produce injection molded parts of different shapes or sizes, new molds need to be redesigned and manufactured. This not only consumes a lot of time and costs but also increases the difficulty of mold management. A structure that can adjust the shape inside the injection cavity is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a plastic processing mold for workpiece positioning, in order to solve the problem mentioned in the background art that many plastic processing molds are usually designed and manufactured specifically for a certain type of injection molded workpiece, and a set of molds can often only produce one or a few similar products. When it is necessary to produce injection molded parts of different shapes or sizes, it is necessary to redesign and manufacture new molds, which not only consumes a lot of time and costs, but also increases the difficulty of mold management.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic processing mold for workpiece positioning, comprising an upper mold base and a lower mold base disposed at a position below the upper mold base;

[0006] An injection port is provided at the middle inner side of the upper mold base, and an injection cavity is provided at the middle inner side of the lower mold base.

[0007] The left ends of the injection cavity are respectively provided with a retaining cavity, and a retaining block is provided on the inner side of the retaining cavity. An adjusting rod is provided on the outside of the two retaining blocks and the lower mold base.

[0008] Multiple adjustment plates are provided at the inner middle position of the two card blocks.

[0009] Preferably, the adjusting rod is connected to the lower mold base via a threaded connection, and the adjusting rod is connected to the locking block via a sleeve connection.

[0010] Preferably, the card block is connected to the card cavity via a nested connection, and the plurality of adjustment plates are respectively connected to the lower mold base via a nested connection.

[0011] Preferably, the plurality of adjusting plates move left and right in the lower mold base, and the locking block moves back and forth in the locking cavity.

[0012] Preferably, the adjusting rod moves back and forth within the lower mold base via a thread, and the adjusting plate and the locking block are respectively made of metal material, with multiple adjusting plates being clamped by the locking blocks on both sides.

[0013] Preferably, positioning posts are provided at the four upper corners of the lower mold base, and guide posts are provided at the connection points between the lower side of the upper mold base and the four positioning posts.

[0014] Preferably, the lower middle side of the upper mold base is provided with a mold pressing block that fits into the upper side of the injection cavity, and the injection port completely penetrates the mold pressing block.

[0015] Compared with the prior art, this utility model provides a plastic processing mold for workpiece positioning, which has the following beneficial effects:

[0016] This device allows for flexible adjustment of the shape of one side of the injection cavity by turning an adjusting rod to change the position of the locking block, thereby squeezing or releasing the adjusting plate to accommodate different types of injection molded parts. This enables the same mold to be used to produce a variety of injection molded parts of different shapes, greatly improving the versatility of the mold, reducing the cost for companies to purchase multiple sets of molds for producing different products, and increasing the efficiency of mold use.

[0017] Before injection molding, users can easily and quickly adjust the position of the adjustment plate manually according to the specific injection molded part model, and then precisely fix the shape using the adjustment rod. This operating method enables rapid response to the production needs of different products during the production process, without spending a lot of time and effort to remanufacture or replace molds, enhancing production flexibility and responsiveness, and better meeting the diverse needs of the market. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the device in this utility model.

[0019] Figure 2 In this utility model Figure 1 A magnified structural diagram of the central region.

[0020] Figure 3 This is a schematic diagram of the structure of multiple adjustment plates in this utility model.

[0021] Figure 4 In this utility model Figure 1 A schematic diagram of the structure after multiple adjustment plates are aligned in a mirror view.

[0022] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Injection cavity; 4. Positioning post; 5. Guide post; 6. Injection port; 7. Clamping cavity; 8. Clamping block; 9. Adjusting rod; 10. Adjusting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-4 The plastic processing mold shown includes an upper mold base 1 and a lower mold base 2 disposed on the lower side of the upper mold base 1.

[0025] An injection port 6 is provided at the middle inner side of the upper mold base 1, and an injection cavity 3 is provided at the middle inner side of the lower mold base 2.

[0026] The left ends of the injection cavity 3 are respectively provided with a retaining cavity 7, and a retaining block 8 is provided on the inner side of the retaining cavity 7. An adjusting rod 9 is provided on the outside of the two retaining blocks 8 and the lower mold base 2.

[0027] Multiple adjustment plates 10 are provided on the inner side of the middle of the two card blocks 8.

[0028] In this embodiment, the user first connects the external injection molding equipment to the injection port 6 of the mold base 1 and starts the injection molding equipment to input the injection liquid from the injection port 6.

[0029] Then, operate the injection molding machine to slowly lower the upper mold base 1 along the guide post 5 on the positioning post 4. The guide post 5 can guide the upper mold base 1 to accurately close with the lower mold base 2, so that the upper mold base 1 and the lower mold base 2 fit tightly together to form a complete injection cavity 3.

[0030] After the mold is closed, the plastic raw material heated to a molten state is injected into the injection cavity 3 through the injection port 6.

[0031] After injection molding is complete, keep the mold closed and wait for the plastic to fully solidify. Then, operate the injection molding machine to raise the upper mold base 1, open the mold, and remove the processed workpiece.

[0032] In this device, the injection port 6 is the channel through which the plastic raw material enters the injection cavity 3. During the injection molding process, the molten plastic raw material is injected into the injection cavity 3 through the injection port 6 under the pressure of the injection molding machine. Because the shape formed inside the injection cavity 3 and the mold block matches the shape of the workpiece to be processed, the plastic raw material fills and wraps the workpiece in the injection cavity 3. After cooling and solidification, the plastic and the workpiece are combined to form a plastic product with a specific shape and function.

[0033] like Figure 1-4 As shown, the adjusting rod 9 is connected to the lower mold base 2 via a threaded connection, and the adjusting rod 9 is connected to the locking block 8 via a sleeve connection. The locking block 8 is connected to the locking cavity 7 via a nested connection. Multiple adjusting plates 10 are connected to the lower mold base 2 via nested connections. The multiple adjusting plates 10 move left and right in the lower mold base 2, and the locking block 8 moves back and forth in the locking cavity 7. The adjusting rod 9 moves back and forth in the lower mold base 2 via a thread. The adjusting plates 10 and the locking block 8 are made of metal. The multiple adjusting plates 10 are held by the locking blocks 8 on both sides. Positioning posts 4 are set at the four corners of the upper side of the lower mold base 2. Guide posts 5 are set at the connection points between the lower side of the upper mold base 1 and the four positioning posts 4. A mold pressing block that fits into the upper side of the injection cavity 3 is set in the middle of the lower side of the upper mold base 1, and the injection port 6 completely penetrates the mold pressing block.

[0034] Optionally, the device presses the mold block into the injection cavity 3, and limits its position by matching the shape of the cavity inside the injection cavity 3 to form the volume of injection liquid, which is then cooled to form the workpiece.

[0035] Preferably, before starting the injection molding process, the user can initially adjust the positions of multiple adjustment plates 10 according to the model of the injection molded workpiece to be processed.

[0036] At this point, first loosen the adjusting rod 9 so that the two locking blocks 8 are in a relatively loose state in the locking cavity 7, allowing the multiple adjusting plates 10 to move freely left and right in the injection cavity 3. Manually move the adjusting plates 10 to the appropriate position according to the desired shape of the injection molded workpiece.

[0037] After determining the position of the adjusting plate 10, the shape formed by the multiple adjusting plates 10 in the injection cavity 3 is precisely fixed by turning the adjusting rod 9. Since the adjusting rod 9 is connected to the lower mold base 2 by a threaded connection and to the locking block 8 by a sleeve connection, when the adjusting rod 9 is turned clockwise, the adjusting rod 9 moves into the locking cavity 7 under the action of the thread, pushing the locking block 8 forward in the locking cavity 7. As the locking block 8 moves, it will squeeze the multiple adjusting plates 10, so that the adjusting plates 10 in the injection cavity 3 will further reduce the gaps and cooperate with each other to form a shape on one side of the injection cavity 3 that matches the model of the target injection molded workpiece.

[0038] After adjusting the shape of the injection cavity 3, connect the external injection molding equipment to the injection port 6 of the upper mold base 1 and start the injection molding equipment to input the molten plastic through the injection port 6. Then, operate the injection molding machine to slowly lower the upper mold base 1 along the guide post 5 on the positioning post 4. The guide post 5 guides the upper mold base 1 to accurately close with the lower mold base 2, so that the upper mold base 1 and the lower mold base 2 fit tightly together to form a complete injection cavity 3. After the mold is closed, inject the molten plastic material into the injection cavity 3 through the injection port 6, so that the plastic material fills and wraps the workpiece to form the workpiece for cooling.

[0039] If different models of injection molded parts need to be produced, the adjusting rod 9 can be loosened again to release the clamping block 8 from pressing on the adjusting plate 10, allowing the multiple adjusting plates 10 to move freely left and right in the injection cavity 3. Following the above method, the position of the adjusting plate 10 and the shape of the injection cavity 3 are readjusted according to the new injection molded part model, in preparation for the next injection molding process.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic processing mold for workpiece positioning, comprising an upper mold base (1) and a lower mold base (2) arranged at a lower side position of the upper mold base (1); an injection port (6) is arranged at a middle inner side position of the upper mold base (1), and an injection cavity (3) is arranged at a middle inner side position of the lower mold base (2); characterized in that left two ends of the injection cavity (3) are respectively provided with clamping cavities (7), and clamping blocks (8) are arranged at inner side positions of the clamping cavities (7); outer sides of the two clamping blocks (8) and the lower mold base (2) are connected with adjusting rods (9); a plurality of adjusting plates (10) are arranged at middle inner side positions of the two clamping blocks (8).

2. The plastic processing mold for workpiece positioning according to claim 1, characterized in that: The adjusting rods (9) are connected with the lower mold base (2) through a threaded connection mode, and the adjusting rods (9) are connected with the clamping blocks (8) through a sleeve connection mode.

3. The plastic processing mold according to claim 2, wherein: The clamping blocks (8) are connected with the clamping cavities (7) through a sleeve embedding connection mode, and the plurality of adjusting plates (10) are respectively connected with the lower mold base (2) through a sleeve embedding connection mode.

4. The plastic processing mold according to claim 3, wherein: The plurality of adjusting plates (10) respectively move left and right in the lower mold base (2), and the clamping blocks (8) move forward and backward in the clamping cavities (7).

5. The plastic processing mold of claim 4, wherein: The adjusting rods (9) move forward and backward in the lower mold base (2) through a threaded connection mode, the adjusting plates (10) and the clamping blocks (8) are respectively made of metal material, and the plurality of adjusting plates (10) are clamped by the two clamping blocks (8).

6. The plastic processing mold of claim 5, wherein: Upper side four corner positions of the lower mold base (2) are respectively provided with positioning columns (4), and lower side positions of the upper mold base (1) and the four positioning columns (4) are connected with guide columns (5).

7. The plastic processing mold for workpiece positioning according to claim 6, characterized in that: a mold pressing block is arranged at a middle lower side position of the upper mold base (1) and is embedded with an upper side surface of the injection cavity (3), and the injection port (6) completely penetrates the mold pressing block.

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