Plastic stamping die for preventing plastic from sticking to the die

Abstract

The utility model discloses a kind of plastic stamping die of preventing plastic sticking die, including stamping die, the top of the stamping die is equipped with bottom die, the bottom die is equipped with the buffer groove for buffering to stamping die head, the inside of the buffer groove is equipped with the piston plate that can scrape after each stamping to the buffer groove inner wall scrapings, the utility model is driven die head to the plastic piece on the feeding plate by top die downward stamping and is stamped, die head drives the scrap that stamping falls into buffer groove inside, when top die resets, die head is withdrawn, piston plate is moved up to the buffer groove inner wall and is scraped to the buffer groove inner wall under the action of elastic expansion column at this time, avoid scrapings to be adhered on the buffer groove inner wall, simultaneously, electric push rod drives scraper to push out plastic piece scrapings and scrapings in demoulding groove inside from demoulding groove inside, complete the cleaning of waste material after demoulding, to effectively avoid the condition that plastic sticking die appears in the process of plastic piece stamping.

Description

Technical Field

[0001] This utility model relates to the field of plastic stamping mold technology, specifically a plastic stamping mold for preventing plastic from sticking to the mold. Background Technology

[0002] A plastic stamping die is a mold used to process plastic products. By applying pressure through stamping equipment, the plastic material is deformed or separated within the mold cavity, thereby obtaining plastic parts of the required shape and size. The stamping die is installed on a stamping press. When the slide of the stamping press drives the upper die of the die downward, it closes with the lower die, applying pressure to the plastic material located in the mold cavity, causing it to deform or separate, thus completing the stamping process.

[0003] Currently, when plastic stamping dies stamp plastic parts, after the die head presses the waste material on the plastic part into the buffer groove, the waste scraps on the edges of the waste material are easily stuck to the inner wall of the buffer groove. As they accumulate, they affect the stamping of the die head.

[0004] Therefore, a plastic stamping die for preventing plastic from sticking to the mold is proposed to solve the above problems. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a plastic stamping die that prevents plastic from sticking to the mold. It aims to solve the problem that when the plastic stamping die is stamping plastic parts, the waste material on the edges of the plastic parts is easily stamped into the buffer groove by the die head, and the waste material is easily stuck to the inner wall of the buffer groove. As more and more waste material accumulates, it affects the stamping of the die head.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A plastic stamping die for preventing plastic from sticking to the mold includes a stamping die, a bottom mold is installed on the top of the stamping die, a buffer groove is provided on the bottom mold for buffering the stamping die head, and a piston plate is installed on the inner side of the buffer groove to scrape off the waste material on the inner wall of the buffer groove after each stamping.

[0010] As a preferred embodiment of this utility model, a top mold is installed on the top of the four telescopic columns on the bottom mold, a stamping die head is installed on the bottom of the top mold, and a clamping plate for extruding and positioning the plastic part is installed on the top of the four telescopic columns inside the bottom mold.

[0011] As a preferred embodiment of this utility model, a support base is installed on the bottom mold, a demolding groove is provided on the top of the support base, a buffer groove is provided on the bottom inner side of the demolding groove, a feeding plate is installed on the top of the support base, and a stamping hole with the same diameter as the buffer groove and located above the top of the buffer groove is provided on the feeding plate.

[0012] As a preferred embodiment of this utility model, an elastic telescopic column is installed on the inner bottom of the buffer groove, and a piston plate is installed on the top of the elastic telescopic column. The outer surface of the piston plate slides up and down against the inner wall of the buffer groove. When the piston plate is not under pressure, its top is flush with the inner bottom of the demolding groove.

[0013] As a preferred embodiment of this utility model, the demolding groove is provided with symmetrical sliding grooves on both sides, and a scraper is installed at one end of the inner side of the demolding groove. The two ends of the scraper are slidably installed on the inner side of the sliding groove by sliders.

[0014] As a preferred embodiment of this utility model, a support frame is installed at one end of the support base, and an electric push rod is installed on the inner side of the support frame. One end of the electric push rod passes through the inner side of the demolding groove and is connected to the center of one side of the scraper. The electric push rod automatically extends and retracts once after each stamping. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses a top die to press downwards, driving the die head to press the plastic part on the loading plate. The die head carries the stamped waste material into the buffer groove. When the top die returns to its original position, the die head retracts. At this time, the piston plate moves upwards along the inner wall of the buffer groove under the action of the elastic telescopic column to scrape off the waste material from the inner wall of the buffer groove, preventing the waste material from sticking to the inner wall of the buffer groove. At the same time, the electric push rod drives the scraper to push all the plastic waste material and waste material in the demolding groove out of the demolding groove, completing the cleaning of waste material after demolding, thereby effectively avoiding the situation of plastic sticking to the mold during the stamping process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a plastic stamping mold for preventing plastic from sticking to the mold according to the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom mold structure of a plastic stamping mold for preventing plastic from sticking to the mold, according to the present invention.

[0019] Figure 3 This utility model relates to a plastic stamping die for preventing plastic from sticking to the mold. Figure 2 Partial structural diagram.

[0020] In the diagram: 1. Stamping die; 2. Bottom die; 21. Support base; 22. Demolding groove; 221. Slide groove; 23. Buffer groove; 24. Elastic telescopic column; 25. Piston plate; 26. Scraper; 27. Support frame; 28. Electric actuator; 29. ​​Loading plate; 3. Top die; 4. Clamping plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figure 1-3 This embodiment provides a plastic stamping die for preventing plastic from sticking to the mold, including a stamping die (1), a bottom mold (2) is installed on the top of the stamping die (1), and a buffer groove (23) is provided on the bottom mold (2) for buffering the stamping die head. A piston plate (25) is installed on the inner side of the buffer groove (23) to scrape the waste debris on the inner wall of the buffer groove (23) after each stamping. When the die head stamps the plastic part, it will carry plastic waste into the buffer groove 23. After the die head is retracted, the piston plate 25 moves upward under the action of the elastic telescopic column 24 to scrape and remove the waste debris from the inner wall of the buffer groove 23, thereby effectively preventing the plastic waste debris from adhering to the inner wall of the buffer groove 23 and affecting the stamping operation of the die head.

[0023] In this embodiment, as Figure 1 and Figure 2 as well as Figure 3 As shown, a support base (21) is installed on the bottom mold (2). A demolding groove (22) is opened on the top of the support base (21). A buffer groove (23) is opened on the bottom inner side of the demolding groove (22). A feeding plate (29) is installed on the top of the support base (21). A punching hole with the same diameter as the buffer groove (23) and located above the top of the buffer groove (23) is opened on the feeding plate (29). The plastic part is placed on the feeding plate 29. When the top mold 3 punches downward, the clamping plate 4 clamps the plastic part. When the die head punches the plastic part, the excess waste will be carried into the inner side of the buffer groove 23.

[0024] In this embodiment, as Figure 3As shown, an elastic telescopic column (24) is installed on the inner bottom of the buffer groove (23), and a piston plate (25) is installed on the top of the elastic telescopic column (24). The outer surface of the piston plate (25) slides up and down against the inner wall of the buffer groove (23). When the piston plate (25) is not under pressure, the bottom of the inner side of the demolding groove (22) at the top of the piston plate (25) is flush. After the die head is removed, the waste material entering the inner side of the buffer groove 23 is pushed upward to the inner side of the demolding groove 22 by the piston plate 25. During the movement, the piston plate 25 scrapes the inner wall of the buffer groove 23, thereby effectively preventing waste from sticking to the inner wall of the buffer groove 23.

[0025] In this embodiment, as Figure 2 and Figure 3 As shown, symmetrical grooves (221) are provided on both sides of the demolding groove (22). A scraper (26) is installed at one end of the inner side of the demolding groove (22). Both ends of the scraper (26) are slidably installed on the inner side of the groove (221) by sliders. A support frame (27) is installed at one end of the support base (21). An electric push rod (28) is installed on the inner side of the support frame (27). One end of the electric push rod (28) passes through the inner side of the demolding groove (22) and is connected to the center of one side of the scraper (26). The electric push rod (28) automatically extends and retracts once after each stamping. The waste material pushed into the demolding groove 22 by the piston plate 25 and the waste material already present in the demolding groove 22 can be scraped by the scraper 26 driven by the electric push rod 28, so that the plastic will not stick in the demolding groove 22.

[0026] Working principle: When using this plastic stamping die to prevent plastic from sticking to the mold, the plastic part is first placed on the loading plate 29. When the top die 3 presses downward, the clamping plate 4 clamps the plastic part. When the die head presses the plastic part, the excess waste material is carried into the inner side of the buffer groove 23. After the die head is removed, the waste material inside the buffer groove 23 is pushed upward by the piston plate 25 to the inner side of the demolding groove 22. During the movement, the piston plate 25 scrapes the inner wall of the buffer groove 23, thereby effectively preventing waste from sticking to the inner wall of the buffer groove 23. The waste material pushed into the demolding groove 22 by the piston plate 25 and the waste material already present in the demolding groove 22 can be scraped by the scraper 26 driven by the electric push rod 28 to complete the cleaning of waste material after demolding, thereby effectively avoiding the situation of plastic sticking to the mold during the stamping process.

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A plastic stamping die for preventing plastic from sticking to the mold, comprising a stamping die (1), characterized in that: The stamping die (1) is equipped with a bottom die (2) on its top. The bottom die (2) is provided with a buffer groove (23) for buffering the stamping die head. The inner side of the buffer groove (23) is equipped with a piston plate (25) that can scrape off the waste material inside the buffer groove (23) after each stamping.

2. A plastic stamping die for preventing plastic from sticking to the mold according to claim 1, characterized in that: A top mold (3) is installed on the top of the four telescopic columns on the bottom mold (2), and a stamping die head is installed on the bottom of the top mold (3). A clamping plate (4) for extruding and positioning plastic parts is installed on the top of the four telescopic columns inside the bottom mold (2).

3. A plastic stamping die for preventing plastic from sticking to the mold according to claim 1, characterized in that: A support base (21) is installed on the bottom mold (2). A demolding groove (22) is opened on the top of the support base (21). A buffer groove (23) is opened on the bottom inner side of the demolding groove (22). A feeding plate (29) is installed on the top of the support base (21). A punching hole with the same diameter as the buffer groove (23) and located above the top of the buffer groove (23) is opened on the feeding plate (29).

4. A plastic stamping die for preventing plastic from sticking to the mold according to claim 1, characterized in that: The inner bottom of the buffer groove (23) is equipped with an elastic telescopic column (24), and the top of the elastic telescopic column (24) is equipped with a piston plate (25). The outer surface of the piston plate (25) slides up and down against the inner wall of the buffer groove (23). When the piston plate (25) is not under pressure, the inner bottom of the top demolding groove (22) is flush with it.

5. A plastic stamping die for preventing plastic from sticking to the mold according to claim 3, characterized in that: The demolding groove (22) has symmetrical grooves (221) on both sides. A scraper (26) is installed at one end of the inner side of the demolding groove (22). The two ends of the scraper (26) are slidably installed on the inner side of the groove (221) by a slider.

6. A plastic stamping die for preventing plastic from sticking to the mold according to claim 3, characterized in that: One end of the support base (21) is equipped with a support frame (27), and an electric push rod (28) is installed on the inner side of the support frame (27). One end of the electric push rod (28) extends through the inner side of the demolding groove (22) and is connected to the center of one side of the scraper (26). The electric push rod (28) automatically extends and retracts once after each stamping.

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