A scraper for removing burrs from injection molded parts

By designing a burr removal scraper for injection molded parts including slider frame, pallet, carriage and spring, the problem of difficult to control the tightness between the scraper and the injection molded parts in the prior art is solved, and the cleanliness of the burr removal process on the injection molded parts is improved.

CN222697707UActive Publication Date: 2025-04-01CHENGDU MINGTAO PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202420515791.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-18
Publication Date
2025-04-01
Estimated Expiration
2034-03-18

AI Technical Summary

Technical Problem

Due to the lack of extrusion structure of the existing injection molded parts, the tightness between the scraper and the injection molded parts is difficult to control, which affects the cleanliness of the burr removal.

Method used

A burr removal scraper for injection molded parts is designed, and a combination structure of support and scraper parts is adopted, including slider frames, pallets, carriages, screw hole blocks, springs and other components. Through the pressure generated by the deformation of the second spring on the carriage, the carriage pushes the carriage to slide horizontally on the slider frame, and drives the scraper to fit tightly on the injection molded parts to remove burrs.

Benefits of technology

By using the pressure of the spring to ensure the tight fit between the scraper and the injection molded parts, the complete removal of burrs on the injection molded parts is achieved, and the cleanliness of the removal process is improved.

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Abstract

The utility model discloses a scraper for removing burrs from injection molded parts, comprising a support member and a scraper member, wherein the support member comprises a support member, a slide bar frame is horizontally fixed to one side of the top surface of the support member, and a support plate is horizontally rotatably connected to the middle of the top surface of the support member, and the scraper member comprises a slide member, the slide member is horizontally slidably mounted on the slide bar frame, and a screw hole block is horizontally slidably mounted on the slide member, a second spring is horizontally fixed to one side of the slide member, and the other end of the second spring is fixed to the side end surface of the slide member, a slide frame is vertically fixed to the screw hole block, and a support arm is vertically slidably mounted on the slide frame, a slide bar is horizontally fixed to the top of the support arm, and a scraper member is arranged on the top of the support arm. The utility model overcomes the problem that the existing scraper lacks an extrusion structure, the degree of contact between the scraper and the injection molded part needs to be manually controlled, and the degree of contact between the scraper and the injection molded part cannot be guaranteed during mobile scraping, resulting in incomplete scraping when burrs on the injection molded part are scraped laterally.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molded part burr removal devices, in particular to an injection molded part burr removal scraper. Background Art

[0002] In the production process of injection molded parts, the upper and lower molds need to be closed to form a mold cavity. Since there is a gap between the upper and lower molds when they are closed, when molten plastic liquid is added, the molten plastic liquid will flow out along the gap, causing burrs and burrs to easily appear at the parting line. In order to ensure the smoothness of the outer surface of the injection molded parts in the later stage, the burrs on the injection molded parts need to be scraped off. The current removal method is to remove them one by one manually with a blade.

[0003] The publication number is CN215320039U, and the name is a deburring tool, which includes a pin rod for stringing together multiple workpieces and a scraper sleeve for scraping off burrs on the workpieces; the pin rod includes a main rod body matching the inner hole of the workpiece and a hand-held part located at one end of the main rod body, a blocking part is provided between the main rod body and the hand-held part, multiple workpieces are sleeved on the main rod body, a through hole matching the shape of the workpiece is opened in the scraper sleeve, and a first scraper is provided at the inlet end of the through hole. When the scraper sleeve moves along the main rod body toward the hand-held part, the first scraper contacts the burrs on the outside of the workpiece to remove the burrs.

[0004] However, when using the scraper to scrape the burrs on the injection molded parts, the scraper itself lacks an extrusion structure, and the closeness of the scraper and the injection molded part needs to be manually controlled. The closeness of the scraper and the injection molded part cannot be guaranteed during mobile scraping, resulting in incomplete scraping when scraping the burrs on the injection molded parts horizontally, affecting the cleanliness of the burr removal on the injection molded parts. Utility Model Content

[0005] The utility model aims to provide a scraper for removing burrs from injection molded parts, aiming to improve the above-mentioned problem.

[0006] The utility model is achieved in this way:

[0007] A scraper for removing burrs from injection molded parts comprises a supporting member and a scraping member, the supporting member comprises a bracket, a sliding rod frame is horizontally fixed to one side of the top surface of the bracket, and a support plate is horizontally rotatably connected to the middle of the top surface of the bracket, the scraping member comprises a slide frame, the slide frame is horizontally slidably installed on the slide rod frame, and a screw hole block is horizontally slidably installed on the slide frame, a second spring is horizontally fixed to one side of the slide frame, and the other end of the second spring is fixed to the side end surface of the slide frame, a sliding frame is vertically fixed to the screw hole block, and a support arm is vertically slidably installed on the slide frame, a sliding bar is horizontally fixed to the top of the support arm, and a scraping member is arranged on the top of the support arm, the scraping member comprises a slide plate, the slide plate is vertically arranged above the slide bar, and the slide plate is horizontally slidably installed on the slide bar, and a scraper is horizontally installed on the top of the slide plate.

[0008] Furthermore, a third spring is horizontally fixed to one end of the slide bar, and the other end of the third spring is fixed to the slide plate.

[0009] Furthermore, a plug-in frame is horizontally fixed to the top of the slide, and a plug-in rod is horizontally inserted through one side end face of the plug-in frame, and a fourth spring is horizontally sleeved on the plug-in rod. One end of the scraper is inserted into the plug-in frame, and one end of the scraper is inserted through the plug-in rod.

[0010] Furthermore, guide cylinders are horizontally fixed on both sides of the support plate, and clamping blocks are provided on both sides of the support plate. A guide rod is horizontally fixed on one side of the clamping block close to the support plate, and the guide rod is slidably inserted into the guide cylinder.

[0011] Furthermore, a first motor is vertically fixed on the bracket, and an output end of the first motor is fixedly connected to a rotating shaft on the support plate, a first spring is horizontally sleeved on the guide rod, and two ends of the first spring are respectively fixed on the end of the guide cylinder and the clamping block.

[0012] Furthermore, a screw rod is horizontally rotatably connected to the slide, and a second motor is horizontally fixed to one end of the slide, an output end of the second motor is fixed to the rotating shaft of the screw rod, and the screw rod is threadedly connected to the screw hole block.

[0013] Furthermore, a slider is fixed to the bottom end of the support arm, and a bolt is installed through the horizontal thread on the slider, and a screw hole is opened on the slide frame along the horizontal thread in the vertical direction, and the screw hole is assembled and connected with the bolt on the slider.

[0014] Compared with the prior art, the beneficial effect of the utility model is as follows: during use, the demolded injection molded part is placed on a pallet, and when scraping off burrs on the injection molded part, the screw hole block is started to move horizontally on the slide, driving the scraper to move horizontally to scrape off the burrs on the injection molded part. At the same time, in order to ensure that the scraper is in close contact with the injection molded part, the pressure generated by the deformation of the second spring on the slide is used to push the slide to slide horizontally on the slide rod frame, driving the scraper to be close to the injection molded part to remove the burrs on the injection molded part, thereby setting the second spring to press the scraper to be close to the injection molded part to scrape off the burrs on the injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2It is a schematic diagram of the exploded structure of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the support member in the embodiment of the utility model in a disassembled state;

[0019] Figure 4 It is a schematic structural diagram of the scraping member in the embodiment of the utility model in a disassembled state;

[0020] Figure 5 It is a schematic structural diagram of the scraping member in the embodiment of the utility model in a disassembled state.

[0021] In the figure: 1, support member; 11, bracket; 12, slide rod frame; 13, support plate; 14, first motor; 15, guide cylinder; 15, clamping block; 17, guide rod; 18, first spring; 2, scraper; 21, slide frame; 22, second spring; 23, screw hole block; 24, slide frame; 241, screw hole; 25, support arm; 251, slider; 252, slide bar; 253, third spring; 26, screw rod; 27, second motor; 28, scraper; 281, slide plate; 282, insert frame; 283, insert rod; 284, fourth spring; 285, scraper. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a burr removal scraper for injection molded parts includes a support member 1 and a scraper 2. The support member 1 includes a bracket 11, a slide rod frame 12 is horizontally fixed to one side of the top surface of the bracket 11, and a support plate 13 is horizontally rotatably connected to the middle of the top surface of the bracket 11. The scraper 2 includes a slide 21, the slide 21 is horizontally slidably installed on the slide rod frame 12, and a screw hole block 23 is horizontally slidably installed on the slide 21, a second spring 22 is horizontally fixed to one side of the slide 21, and the other end of the second spring 22 is fixed to the side end surface of the slide 21, a slide frame 24 is vertically fixed to the screw hole block 23, and a support arm 25 is vertically slidably installed on the slide frame 24, a slide bar 252 is horizontally fixed to the top of the support arm 25, and a scraper 28 is arranged on the top of the support arm 25, and the scraper 28 includes a slide plate 2 81, the slide plate 281 is vertically arranged above the slide bar 252, and the slide plate 281 is horizontally slidably installed on the slide bar 252, and a scraper 285 is horizontally installed on the top of the slide plate 281. When in use, the molded part is placed on the support plate 13 after demoulding. When scraping off the burrs on the injection molded part, the screw hole block 23 is started to move horizontally on the slide 21, driving the scraper 285 to move horizontally to scrape off the burrs on the injection molded part. At the same time, in order to ensure that the scraper 285 is in close contact with the injection molded part, the pressure generated by the deformation of the second spring 22 on the slide 21 is used to push the slide 21 to slide horizontally on the slide bar frame 12, driving the scraper 285 to be close to the injection molded part to remove the burrs on the injection molded part, so that the second spring 22 is set to press the scraper 285 to be close to the injection molded part to scrape off the burrs on the injection molded part.

[0024] See also Figure 4 and Figure 5 , a third spring 253 is horizontally fixed to one end of the slide bar 252, and the other end of the third spring 253 is fixed to the slide plate 281, an insertion frame 282 is horizontally fixed to the top of the slide plate 281, and a plug rod 283 is horizontally inserted and inserted on one side end surface of the plug frame 282, and a fourth spring 284 is horizontally sleeved on the plug rod 283, one end of the scraper 285 is inserted into the plug frame 282, and one end of the scraper 285 is inserted through the plug rod 283. During use, the plug rod 283 is pulled outward to squeeze the third spring 253 to deform, and one end of the scraper 285 is inserted into the plug frame 282. The plug rod 283 is released under the deformation pressure of the third spring 253, and the plug rod 283 is pushed to penetrate one end of the scraper 285. At the same time, the slide bar 252 pushes the slide plate 281 to slide on the slide bar 252 under the deformation pressure of the third spring 253, so as to facilitate the extrusion of the scraper 285 to scrape burrs close to the injection molded part.

[0025] See also Figure 3, guide cylinders 15 are horizontally fixed on both sides of the support plate 13, and clamping blocks 16 are arranged on both sides of the support plate 13, and a guide rod 17 is horizontally fixed on one side of the clamping block 16 close to the support plate 13, and the guide rod 17 is slidably inserted into the guide cylinder 15, a first motor 14 is vertically fixed on the bracket 11, and the output end of the first motor 14 is fixedly connected to the rotating shaft on the support plate 13, a first spring 18 is horizontally sleeved on the guide rod 17, and the two ends of the first spring 18 are respectively fixed on the end of the guide cylinder 15 and the clamping block 16, when in use, the injection molded part is placed on the support plate 13, and the clamping blocks 16 symmetrical on both sides are driven by the deformation pressure of the first spring 18 to drive the guide rod 17 to slide into the guide cylinder 15, and the clamping block 16 is used to squeeze and clamp the injection molded part to maintain the stability of scraping burrs on the injection molded part, and when the burr cleaning side of the injection molded part is switched during scraping, the first motor 14 is started to drive the support plate 13 to rotate, and the injection molded part is lifted and rotated to switch the burr cleaning side of the injection molded part.

[0026] See also Figure 3 and Figure 4 , a screw rod 26 is connected to the slide 21 for horizontal rotation, and a second motor 27 is fixed horizontally at one end of the slide 21, the output end of the second motor 27 is fixed on the rotating shaft of the screw rod 26, and the screw rod 26 is threadedly connected with the screw hole block 23, a slider 251 is fixed to the bottom end of the support arm 25, and a bolt is installed through the horizontal thread on the slider 251, a screw hole 241 is opened on the slide frame 24 along the horizontal thread in the vertical direction, and the screw hole 241 is assembled and connected with the bolt on the slider 251, and the second motor 27 is started during use to drive the screw rod 26 to rotate on the slide 21, so that the screw hole block 23 can be driven by the thread to move horizontally on the slide 21, and the slider 251 at the bottom end of the sliding support arm 25 moves vertically in the slide frame 24 according to the height of deburring the injection molded part during use, and after switching to the appropriate scraping height, the bolt thread on the slider 251 is assembled in the screw hole 241 on the slide frame 24 to maintain the appropriate height of the support.

[0027] Working principle: During use, the molded part after demoulding is placed on the support plate 13. When scraping off the burrs on the injection molded part, the screw hole block 23 is started to move horizontally on the slide 21, driving the scraper 285 to move horizontally to scrape off the burrs on the injection molded part. At the same time, in order to ensure that the scraper 285 is in close contact with the injection molded part, the pressure generated by the deformation of the second spring 22 on the slide 21 is used to push the slide 21 to slide horizontally on the slide rod frame 12, driving the scraper 285 to be close to the injection molded part to remove the burrs on the injection molded part.

[0028] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A scraper for removing burrs from injection molded parts, characterized in that: The invention comprises a support member (1) and a scraper member (2), wherein the support member (1) comprises a bracket (11), a slide rod frame (12) is horizontally fixed to one side of the top surface of the bracket (11), and a support plate (13) is horizontally rotatably connected to the middle of the top surface of the bracket (11), and the scraper member (2) comprises a slide frame (21), the slide frame (21) is horizontally slidably mounted on the slide rod frame (12), and a screw hole block (23) is horizontally slidably mounted on the slide frame (21), and a screw hole block (23) is horizontally fixed to one side of the slide frame (21). A second spring (22), one end of the second spring (22) is fixed on a bracket extending downward from the slide frame (21), and the other end of the second spring (22) is fixed on a square component. A slide frame (24) is vertically fixed on the screw hole block (23), and a support arm (25) is vertically slidably mounted on the slide frame (24). A slide bar (252) is horizontally fixed on the top of the support arm (25), and a scraper (28) is provided on the top of the support arm (25), and the scraper (28) includes a slide plate (281). The slide plate (281) is vertically arranged above the slide bar (252), and the slide plate (281) is horizontally slidably mounted on the slide bar (252), and a scraper (285) is horizontally mounted on the top of the slide plate (281).

2. The scraper for removing burrs from injection molded parts according to claim 1, characterized in that: A third spring (253) is horizontally fixed to one end of the slide bar (252), and the other end of the third spring (253) is fixed on the slide plate (281).

3. The scraper for removing burrs from injection molded parts according to claim 2, characterized in that: An insertion frame (282) is horizontally fixed to the top of the slide plate (281), and an insertion rod (283) is inserted horizontally through one end surface of the insertion frame (282), and a fourth spring (284) is horizontally sleeved on the insertion rod (283). One end of the scraper (285) is inserted into the insertion frame (282), and one end of the scraper (285) is inserted through the insertion rod (283).

4. The scraper for removing burrs from injection molded parts according to claim 1, characterized in that: Guide cylinders (15) are horizontally fixed on both sides of the support plate (13), and clamping blocks (16) are provided on both sides of the support plate (13). A guide rod (17) is horizontally fixed on one side of the clamping block (16) close to the support plate (13), and the guide rod (17) is slidably inserted into the guide cylinder (15).

5. The scraper for removing burrs from injection molded parts according to claim 4, characterized in that: A first motor (14) is vertically fixed on the bracket (11), and an output end of the first motor (14) is fixedly connected to a rotating shaft on the support plate (13). A first spring (18) is horizontally sleeved on the guide rod (17), and two ends of the first spring (18) are respectively fixed to an end of the guide cylinder (15) and a clamping block (16).

6. The scraper for removing burrs from injection molded parts according to claim 1, characterized in that: A screw rod (26) is horizontally rotatably connected to the slide (21), and a second motor (27) is horizontally fixed to one end of the slide (21). The output end of the second motor (27) is fixed to the rotating shaft of the screw rod (26), and the screw rod (26) is threadedly connected to the screw hole block (23).

7. The scraper for removing burrs from injection molded parts according to claim 6, characterized in that: A slider (251) is fixed to the bottom end of the support arm (25), and a bolt is installed through a horizontal thread on the slider (251). A screw hole (241) is opened on the slide frame (24) through a horizontal thread in a vertical direction, and the screw hole (241) is assembled and connected with the bolt on the slider (251).

Citation Information

Patent Citations

  • Deburring tool

    CN215320039U