Flame treatment equipment for automobile injection molding part

By designing the processing components, flipping components, longitudinal movement components, and transverse movement components of the flame treatment equipment for automotive injection molded parts, double-sided flame treatment of automotive injection molded parts is achieved, solving the problem of incomplete flame treatment caused by partial surface obstruction and improving the processing quality.

CN224183508UActive Publication Date: 2026-05-01ZHENGZHOU ZHUODA AUTO PARTS MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU ZHUODA AUTO PARTS MFG CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

During the flame treatment of automotive injection molded parts, some surfaces are not fully treated due to shielding, which affects the quality of the treatment.

Method used

A flame treatment device for automotive injection molded parts has been designed, comprising a treatment component, a flipping component, a longitudinal movement component, and a transverse movement component, to achieve double-sided flame treatment of automotive injection molded parts, and to improve the comprehensiveness of the treatment through longitudinally and laterally moving flame nozzles.

Benefits of technology

It improves the comprehensiveness of flame treatment for automotive injection molded parts, reduces blind spots caused by obstruction, and enhances the quality of treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses flame treatment equipment for an automobile injection molding part, which comprises a bottom plate and a treatment box arranged on one side of the bottom plate, a protective door is hinged to one side of the treatment box, and the flame treatment equipment further comprises sliding rods arranged on two opposite inner walls of the treatment box. The opposite ends of the two sliding rods are each provided with a containing plate used for containing the automobile injection molding part, and the treatment box is provided with a treatment assembly used for conducting flame treatment on the automobile injection molding part and a turn-over assembly used for turning over the automobile injection molding part in the flame treatment process. According to the flame treatment equipment for the automobile injection molding part, through the arrangement of the treatment assembly, double-sided flame treatment of the automobile injection molding part is achieved through the arrangement of the turn-over assembly while the surface of the automobile injection molding part is subjected to fire treatment, and under the cooperation effect of the longitudinal moving assembly and the transverse moving assembly, the flame treatment efficiency is improved. And the comprehensiveness of over-fire treatment of the automobile injection molding part is improved.
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Description

Flame treatment equipment for automotive injection molded parts Technical Field

[0001] This utility model relates to the field of automotive injection molded parts processing technology, specifically to a flame treatment device for automotive injection molded parts. Background Technology

[0002] Polyolefin plastics commonly used in automotive injection molding (such as PP, polypropylene, TPO, etc.) have low surface polarity and low surface tension, resulting in poor coating adhesion. Flame treatment utilizes a strong oxidizing flame (temperatures as high as 1100-1800℃) to cause oxidation reactions in the macromolecules on the plastic surface, producing charged polar functional groups such as "-C=O" and "-COOH". These polar groups increase the surface polarity of the plastic, improving the wettability and spreadability of coatings and adhesives, allowing the coatings and adhesives to adhere better and preventing peeling.

[0003] When flame treating automotive injection molded parts, the parts need to be placed on an operating table or hung on hooks. This can cause some surfaces of the parts to be partially obscured, resulting in incomplete flame treatment and reducing the overall quality of the flame treatment.

[0004] Therefore, there is an urgent need for a flame treatment device for automotive injection molded parts to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flame treatment device for automotive injection molded parts, comprising a base plate and a treatment box disposed on one side of the base plate, wherein a protective door is hinged to one side of the treatment box, and further comprising sliding rods disposed on two opposing inner walls of the treatment box, wherein one end of each of the two sliding rods is respectively provided with a placement plate for placing automotive injection molded parts, and the treatment box is provided with a treatment component for flame treating automotive injection molded parts and a flipping component for flipping automotive injection molded parts during flame treatment;

[0006] The processing assembly includes a processing plate slidably connected to a processing box. Two opposite sidewalls of the processing plate are respectively provided with mounting pipes. A connecting pipe is fixedly connected to one end of each of the two mounting pipes that is far from each other. Multiple flame nozzles are fixedly connected to the side of each of the two connecting pipes closest to the placement plate. The two mounting pipes are connected by a U-shaped pipe, and the sidewall of the U-shaped pipe is provided with a corrugated pipe. A gas cylinder is fixedly connected to one side of the processing box. The end of the corrugated pipe furthest from the U-shaped pipe is connected to the gas cylinder. The processing box is provided with a longitudinal movement assembly for longitudinally moving each flame nozzle and a transverse movement assembly for laterally moving each flame nozzle during longitudinal movement.

[0007] The flipping assembly includes two support plates fixedly connected to the bottom plate on the side near the processing box. The two support plates are located on both sides of the processing box. The opposite sides of the two support plates are connected to the processing box via a flipping rod. One of the two support plates is fixedly connected to a flipping motor on the side away from the processing box. The output end of the flipping motor is connected to the flipping rod.

[0008] Both of the mounting pipes are equipped with control valves on their sidewalls.

[0009] The processing box is equipped with push rod motors on both sides near the two placement plates, and the output ends of the two push rod motors are connected to the sliding rods.

[0010] The longitudinal movement assembly includes a moving block slidably connected to the processing box. One end of the processing plate is connected to the moving block. The moving block is slidably connected to two guide rods. The two ends of the two guide rods are respectively connected to two opposite inner walls of the processing box. A lead screw is rotatably connected between the two inner walls of the processing box. The lead screw is located between the two guide rods and is threaded to the moving block. A motor is fixedly connected to the side of the processing box near the flipping motor. The output end of the motor is connected to the lead screw.

[0011] The lateral movement assembly includes multiple equidistant lateral movement plates fixedly connected to the inner wall of the processing box on the side away from the protective door. Each lateral movement plate has an inclined surface on its two opposite side walls. A lateral movement rod is fixedly connected to one end of the connecting pipe near each lateral movement plate. The center line of the lateral movement rod is at the same height as the center position of the lateral movement plate. The processing plate is provided with a telescopic assembly for extending and retracting each flame nozzle during the lateral movement.

[0012] The telescopic assembly includes a cross-shaped hole on the side of the processing plate near the mounting tube. A cross-shaped plate is slidably connected to the cross-shaped hole. The end of the mounting tube away from the connecting tube is connected to the cross-shaped plate. Two fixing plates are fixedly connected to the two opposite side walls of the processing plate. A fixing rod is fixedly connected between the two opposite fixing plates. The cross-shaped plate is slidably connected to the two fixing rods. Two springs are sleeved on the side walls of the two fixing rods. The two ends of the two opposite springs are connected to the fixing plates and the cross-shaped plate, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention relates to a flame treatment device for automotive injection molded parts. Through the arrangement of the treatment components, it achieves flame treatment of the surface of the automotive injection molded parts while simultaneously performing double-sided flame treatment using a flipping component. Furthermore, the combined action of the longitudinal and transverse moving components enhances the comprehensiveness of the flame treatment of the automotive injection molded parts, thereby reducing the flame blind spots caused by partial surface obstruction of the automotive injection molded parts and improving the quality of the flame treatment. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the processing box of this utility model;

[0017] Figure 3 is a schematic diagram of the longitudinal and transverse movement components of this utility model;

[0018] Figure 4 is a schematic diagram of the telescopic component structure of this utility model.

[0019] In the diagram: 101, processing box; 102, base plate; 103, protective door; 2, sliding rod; 3, placement plate; 401, support plate; 402, flipping rod; 403, flipping motor; 5, push rod motor; 601, processing plate; 602, mounting pipe; 603, connecting pipe; 604, flame nozzle; 605, corrugated pipe; 606, gas tank; 701, moving block; 702, guide rod; 703, lead screw; 704, motor; 801, cross-shaped hole; 802, cross-shaped plate; 803, fixing plate; 804, fixing rod; 805, spring; 901, transverse plate; 902, inclined plane; 903, transverse rod. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please refer to Figures 1-4. The figure shows a flame treatment device for automotive injection molded parts, including a base plate 102 and a treatment box 101 disposed on one side of the base plate 102. A protective door 103 is hinged to one side of the treatment box 101. The device also includes sliding rods 2 disposed on two opposing inner walls of the treatment box 101. The opposite ends of the two sliding rods 2 are respectively provided with placement plates 3 for placing automotive injection molded parts. The treatment box 101 is provided with a treatment component for flame treatment of automotive injection molded parts and a flipping component for flipping the automotive injection molded parts during the flame treatment process.

[0023] The processing assembly includes a processing plate 601 slidably connected to the processing box 101. The processing plate 601 has two opposite side walls respectively provided with mounting pipes 602. The ends of the two mounting pipes 602 that are far apart from each other are fixedly connected to connecting pipes 603. The two connecting pipes 603 are fixedly connected to the side of the placement plate 3. The two mounting pipes 602 are connected to each other by a U-shaped pipe. The side wall of the U-shaped pipe is provided with a corrugated pipe 605. A gas tank 606 is fixedly connected to one side of the processing box 101. The end of the corrugated pipe 605 that is far away from the U-shaped pipe is connected to the gas tank 606. The processing box 101 is provided with a longitudinal movement assembly for longitudinally moving each flame nozzle 604 and a transverse movement assembly for laterally moving each flame nozzle 604 during longitudinal movement.

[0024] The flipping assembly includes two support plates 401 fixedly connected to the base plate 102 on the side near the processing box 101. The two support plates 401 are located on both sides of the processing box 101. The opposite side of the two support plates 401 is connected to the processing box 101 through a flipping rod 402. One of the two support plates 401 is fixedly connected to a flipping motor 403 on the side away from the processing box 101. The output end of the flipping motor 403 is connected to the flipping rod 402.

[0025] It should be noted that by setting up the processing components, while achieving surface flame treatment of automotive injection molded parts, the flipping component enables double-sided flame treatment of the automotive injection molded parts. Furthermore, with the combined action of the longitudinal and transverse components, the comprehensiveness of the flame treatment of automotive injection molded parts is improved, thereby reducing the flame blind spots caused by partial surface obstruction of automotive injection molded parts, and thus improving the quality of flame treatment of automotive injection molded parts.

[0026] Please refer to Figure 4. Control valves are provided on the side walls of both mounting pipes 602 shown in the figure.

[0027] It should be noted here that the control valve is used to control the corresponding mounting pipe 602 passage according to the position of the automotive injection molded part.

[0028] Please refer to Figure 2. In the figure, the processing box 101 is equipped with push rod motors 5 on both sides near the two placement plates 3. The output ends of the two push rod motors 5 are connected to the sliding rods 2.

[0029] It should be noted here that the push rod motor 5 is used to move the placement plate 3.

[0030] Working principle: When performing flame treatment on automotive injection molded parts, first open the protective door 103 of the treatment box 101 and place the automotive injection molded parts on one of the two placement plates 3 near the bottom plate 102 (the placement and retrieval of automotive injection molded parts can be performed by an industrial robot). After the automotive injection molded parts are placed, close the protective door 103. Use the longitudinal movement component to drive each flame nozzle 604 at one end of the connecting pipe 603 to move closer to the automotive injection molded parts. During the movement of each flame nozzle 604, use the corrugated pipe 605 to transport the combustible gas in the gas tank 606 to the connecting pipe 603, and spray it onto the surface of the automotive injection molded parts in the form of flames through the combustion of the flame nozzles 604, thus completing the flame treatment operation on one side of the automotive injection molded parts.

[0031] After flame treating one side of the automotive injection molded part, each flame nozzle 604 is moved to the side away from the automotive injection molded part. Then, two push rod motors 5 are activated to push the two placement plates 3 closer together. When the two placement plates 3 form a surface contact with the automotive injection molded part, the flipping motor 403 is activated, which in turn drives the entire treatment box 101 to rotate. After rotating 180 degrees, the flipping motor 403 is stopped. At this time, the two push rod motors 5 drive the two placement plates 3 to move away from each other. Then, by rotating the treatment box 101 180 degrees, the side of the automotive injection molded part that was not flame treated is flipped to the side away from the base plate 102. At this time, the flame treatment of the flipped automotive injection molded part can be achieved again through the cooperation of the treatment components and the longitudinal movement components. This completes the double-sided flame treatment of the automotive injection molded part, thereby improving the comprehensiveness of the flame treatment of the automotive injection molded part, reducing the blind spots caused by partial surface obstruction of the automotive injection molded part, and thus improving the quality of the flame treatment of the automotive injection molded part.

[0032] Example 2

[0033] Please refer to Figure 3. This embodiment further illustrates Example 1. The longitudinal movement assembly shown in the figure includes a moving block 701 slidably connected to the processing box 101. One end of the processing plate 601 is connected to the moving block 701. The moving block 701 is slidably connected to two guide rods 702. The two ends of the two guide rods 702 are respectively connected to two opposite inner walls of the processing box 101. A lead screw 703 is rotatably connected between the two inner walls of the processing box 101. The lead screw 703 is located between the two guide rods 702 and is threadedly connected to the moving block 701. A motor 704 is fixedly connected to the side of the processing box 101 near the flipping motor 403. The output end of the motor 704 is connected to the lead screw 703.

[0034] It should be noted here that: by setting up the longitudinal movement component, the motor 704 drives the lead screw 703 to rotate. Under the threaded engagement transmission between the lead screw 703 and the moving block 701 and the guiding action of the two guide rods 702, the processing plate 601 is moved, which in turn drives the flame nozzles 604 at one end of the connecting pipe 603 to move, thereby realizing the flame treatment of the surface of the automotive injection molded parts.

[0035] Example 3

[0036] Please refer to Figures 3 and 4. This embodiment is a further description of other embodiments. The transverse component shown in the figures includes a plurality of transverse plates 901 that are fixedly connected to the inner wall of the processing box 101 on the side away from the protective door 103 and are arranged at equal intervals. Each transverse plate 901 has a sloping surface 902 on its two opposite side walls. A transverse rod 903 is fixedly connected to one end of the connecting pipe 603 near each transverse plate 901. The center line of the transverse rod 903 is at the same height as the center position of the transverse plate 901. The processing plate 601 is provided with a telescopic component for extending and retracting each flame nozzle 604 during the transverse movement.

[0037] It should be noted that, through the setting of the transverse component, during the process of the longitudinal component driving the processing plate 601 to move, the transverse rod 903 at one end of the connecting pipe 603 will be moved simultaneously. When the transverse rod 903 moves to the area of ​​the placement plate 3, it will reciprocate into contact with each transverse plate 901. Then, under the interaction force of each inclined surface 902 and the guiding and resetting action of the telescopic component, the transverse rod 903 is pushed to reciprocate laterally. This causes each flame nozzle 604 at one end of the connecting pipe 603 to reciprocate laterally during the longitudinal movement, thereby increasing the contact area between the flame emitted by each flame nozzle 604 and the automotive injection molded part, reducing the blind spot in the flame treatment of the automotive injection molded part caused by the installation spacing of each flame nozzle 604, and thus improving the quality of the flame treatment of the automotive injection molded part.

[0038] Please refer to Figure 4. The telescopic assembly shown in the figure includes a cross-shaped hole 801 opened on the side of the processing plate 601 near the mounting tube 602. A cross-shaped plate 802 is slidably connected to the cross-shaped hole 801. The end of the mounting tube 602 away from the connecting tube 603 is connected to the cross-shaped plate 802. Two fixing plates 803 are fixedly connected to the two opposite side walls of the processing plate 601 respectively. A fixing rod 804 is fixedly connected between the two opposite fixing plates 803. The cross-shaped plate 802 is slidably connected to the two fixing rods 804. Two springs 805 are sleeved on the side walls of the two fixing rods 804. The two ends of the two opposite springs 805 are connected to the fixing plate 803 and the cross-shaped plate 802 respectively.

[0039] It should be noted here that the telescopic component is designed to guide and reset the movement of the mounting tube 602, thereby providing operable space for the lateral movement of each flame nozzle 604.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flame treatment apparatus for automotive injection molded parts, comprising: The base plate (102) and a processing box (101) disposed on one side of the base plate (102), wherein a protective door (103) is hinged to one side of the processing box (101); characterized in that it further includes: sliding rods (2) disposed on two opposing inner walls of the processing box (101), and each of the two sliding rods (2) having a placement plate (3) for placing automotive injection molded parts at one opposite end; the processing box (101) is provided with a processing assembly for flame treating automotive injection molded parts and a flipping assembly for flipping automotive injection molded parts during flame treating; the processing assembly includes a processing plate (601) slidably connected to the processing box (101), and each of the two opposing side walls of the processing plate (601) having an installation tube (602); the two installation tubes (602) having a connecting tube (603) fixedly connected at opposite ends; and the two connecting tubes (603) having a plurality of flame nozzles (604) fixedly connected on the side of the two connecting tubes (603) near the placement plate (3); the two installation tubes (602) having a connecting tube (603) fixedly connected to the side of the two connecting tubes (604) near the placement plate (3); the two installation tubes (602) having a connecting tube (603) at one opposite end of the two connecting ... at one opposite end of the two connecting tubes (602) having a connecting tube (603) at one opposite end of the two connecting tubes (604) near the placement plate (3); the two installation tubes (604) having a connecting tube (604) at one opposite end of the two connecting tubes (604) having The components are connected by a U-shaped tube, and the side wall of the U-shaped tube is provided with a corrugated pipe (605). A gas tank (606) is fixedly connected to one side of the processing box (101). The end of the corrugated pipe (605) away from the U-shaped tube is connected to the gas tank (606). The processing box (101) is provided with a longitudinal moving assembly for longitudinally moving each flame nozzle (604) and a transverse moving assembly for laterally moving each flame nozzle (604) during longitudinal movement. The flipping assembly includes a fixed connection. Two support plates (401) are located on the side of the base plate (102) near the processing box (101). The two support plates (401) are located on both sides of the processing box (101). The opposite sides of the two support plates (401) are connected to the processing box (101) via a flipping rod (402). One of the two support plates (401) is fixedly connected to a flipping motor (403) on the side away from the processing box (101). The output end of the flipping motor (403) is connected to the flipping rod (402).

2. The flame treatment equipment for automotive injection molded parts according to claim 1, characterized in that: Both of the mounting pipes (602) have control valves on their sidewalls.

3. The flame treatment equipment for automotive injection molded parts according to claim 2, characterized in that: The processing box (101) is equipped with push rod motors (5) on both sides near the two placement plates (3), and the output ends of the two push rod motors (5) are connected to the sliding rod (2).

4. The flame treatment equipment for automotive injection molded parts according to claim 3, characterized in that: The longitudinal movement assembly includes a moving block (701) slidably connected to the processing box (101). One end of the processing plate (601) is connected to the moving block (701). The moving block (701) is slidably connected to two guide rods (702). The two ends of the two guide rods (702) are respectively connected to the two inner walls of the processing box (101). A lead screw (703) is rotatably connected between the two inner walls of the processing box (101). The lead screw (703) is located between the two guide rods (702) and is threaded to the moving block (701). A motor (704) is fixedly connected to the side of the processing box (101) near the flipping motor (403). The output end of the motor (704) is connected to the lead screw (703).

5. The flame treatment equipment for automotive injection molded parts according to claim 4, characterized in that: The lateral movement assembly includes multiple lateral movement plates (901) fixedly connected to the inner wall of the processing box (101) away from the protective door (103) and arranged at equal intervals. Each of the two opposite side walls of each lateral movement plate (901) is provided with an inclined surface (902). A lateral movement rod (903) is fixedly connected to one end of the connecting pipe (603) near each lateral movement plate (901). The center line of the lateral movement rod (903) is at the same height as the center position of the lateral movement plate (901). The processing plate (601) is provided with a telescopic assembly for extending and retracting each flame nozzle (604) during the lateral movement.

6. The flame treatment equipment for automotive injection molded parts according to claim 5, characterized in that: The telescopic assembly includes a cross-shaped hole (801) on the side of the processing plate (601) near the mounting tube (602). A cross-shaped plate (802) is slidably connected to the cross-shaped hole (801). One end of the mounting tube (602) away from the connecting tube (603) is connected to the cross-shaped plate (802). Two fixing plates (803) are fixedly connected to the two opposite side walls of the processing plate (601). A fixing rod (804) is fixedly connected between the two opposite fixing plates (803). The cross-shaped plate (802) is slidably connected to the two fixing rods (804). Two springs (805) are sleeved on the side walls of the two fixing rods (804). The two ends of the two opposite springs (805) are connected to the fixing plate (803) and the cross-shaped plate (802) respectively.