Automatic pressing equipment for injection molding part

Abstract

The automatic press-fit equipment comprises a supporting rod, a top plate, a middle plate and a supporting seat are welded to the outer wall of the circumference of the supporting rod from top to bottom, a sliding way piece is installed on the inner wall of the top of the top plate and movably connected with sliding blocks, and an upper press-fit seat is fixed between the two sliding blocks; a crank rocker assembly is connected to the outer wall of one side of the upper press-fit seat, a suction cup assembly is installed on the inner wall of the top of the upper press-fit seat and adsorbs a first injection molding part matched with the inner diameter of the upper press-fit seat, a hydraulic cylinder is fixed to the outer wall of the bottom of the middle plate, and a lower press-fit plate is fixed to the output end of the hydraulic cylinder through a pin. The conical contact pins are arranged on the two sides of the lower pressing plate, and the positioning plates and the matched insertion holes are arranged on the two sides of the upper pressing seat, so that the equipment can realize accurate positioning in the pressing process, the accurate butt joint between the injection molding part II and the injection molding part I is ensured, and the pressing failure or product quality problem caused by position deviation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection molding pressing technology, and in particular to an automatic pressing device for injection molding parts. Background Technology

[0002] In the production process of injection molded parts, the pressing of injection molded parts is a key process step that directly affects the quality, performance and appearance of the product. Existing injection molding pressing equipment usually adopts a simple mechanical structure and uses hydraulic or pneumatic pressure to drive the pressing plate to perform the pressing operation. However, these devices lack effective detection methods after pressing and cannot judge the firmness of the pressed parts in real time, resulting in unqualified products flowing into subsequent processes.

[0003] A search revealed Chinese patent application number 202322141586.0, which discloses an automatic assembly pressing device for injection molded parts. The device includes a machine body, a base fixedly connected to the machine body, multiple guide shafts fixedly connected to the base, a fixed plate fixedly connected to one end of each guide shaft away from the base, a side wall of the fixed plate fixedly connected to the side wall of the machine body, a movable plate moving below the fixed plate, and a pressing cylinder fixedly mounted on the fixed plate. The output end of the pressing cylinder passes through the fixed plate and is fixedly connected to the movable plate.

[0004] The automatic assembly pressing equipment for injection molded parts in the aforementioned patent has the following shortcomings: after pressing, the injection molded parts lack effective testing methods, making it impossible to determine the firmness of the pressed parts, which may lead to unqualified products flowing into subsequent processes and affecting the yield of pressed parts. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic pressing device for injection molded parts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic pressing device for injection molded parts includes a support rod. A top plate, a middle plate, and a support base are welded to the outer circumference of the support rod from top to bottom. A slide rail is installed on the inner top wall of the top plate, and a slider is movably connected to the slide rail. An upper pressing seat is fixed between two sliders. A crank-rocker assembly is connected to one outer wall of the upper pressing seat. A suction cup assembly is installed on the inner top wall of the upper pressing seat, and the suction cup assembly adsorbs an injection molded part (first part) with an inner diameter adapted to the upper pressing seat. A hydraulic cylinder is fixed to the outer bottom wall of the middle plate, and a lower pressing plate is fixed to the output end of the hydraulic cylinder via a pin. An injection molded part (second part) is placed on the lower pressing plate and pressed against the first injection molded part.

[0008] As a further embodiment of this utility model: the crank rocker assembly includes a fixed plate and a drive motor, the fixed plate is fixed to the bottom outer wall of the top plate, and the drive motor is fixed to one side of the outer wall of the fixed plate.

[0009] As a further embodiment of this utility model: the output end of the drive motor is connected to a drive disk via a coupling, and a bracket is fixed to one side of the outer wall of the upper pressing seat, and a swing arm is movably connected between the inner wall of the bracket and the outer wall of one side of the drive disk.

[0010] As a further embodiment of this utility model: the slide rail component includes a guide rod and two upright plates, both of which are fixed to the bottom outer wall of the top plate, and the guide rod is fixed between the two upright plates by a pin, and the slider and the guide rod are movably connected.

[0011] As a further embodiment of this utility model: the suction cup assembly includes a connector and a vacuum suction cup. The connector is fixed to the inner wall of the through hole opened on the top of the upper pressing seat by an embedding method, and the vacuum suction cup is fixed to the bottom of the connector.

[0012] As a further improvement of this utility model: a controller is fixed to the top outer wall of the intermediate plate, and the controller is used to control the drive motor and the hydraulic cylinder.

[0013] As a further improvement of this utility model: a connecting plate is fixed to the outer walls of both sides of the lower pressing plate, and a tapered pin is welded to the top outer wall of the connecting plate.

[0014] As a further improvement of this utility model: both outer walls of the upper pressing seat are fixed with positioning plates, and the surface of the positioning plates is provided with insertion holes that are compatible with the conical pins.

[0015] Compared with the prior art, this utility model provides an automatic pressing device for injection molded parts, which has the following beneficial effects:

[0016] 1. By setting tapered pins on both sides of the lower pressing plate and positioning plates and matching insertion holes on both sides of the upper pressing seat, the equipment can achieve precise positioning during the pressing process, ensuring accurate docking between injection molded part two and injection molded part one, and reducing pressing failure or product quality problems caused by position deviation.

[0017] 2. The combination of the tapered pin and the positioning plate not only improves the pressing accuracy but also enhances the stability of the entire pressing process. When the pressing plate moves up under the drive of the hydraulic cylinder, the tapered pin gradually inserts into the insertion hole of the positioning plate, effectively preventing shaking or displacement during the pressing process and ensuring the smooth operation of the pressing.

[0018] 3. The equipment reduces the time and difficulty of manual alignment. Operators only need to place the injection molded part on the lower pressing plate and the upper pressing seat, and the equipment can automatically complete the precise positioning and pressing, which improves production efficiency and reduces the complexity of operation.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic pressing device for injection molded parts proposed in this utility model;

[0021] Figure 2 This is a side view structural diagram of an automatic pressing device for injection molded parts proposed in this utility model;

[0022] Figure 3 This is an exploded view of the upper pressing component of an automatic pressing device for injection molded parts proposed in this utility model;

[0023] Figure 4 This is an exploded structural diagram of the lower pressing component of an automatic pressing device for injection molded parts proposed in this utility model.

[0024] In the diagram: 1. Support base; 2. Support rod; 3. Top plate; 4. Injection molded part 1; 5. Slider; 6. Controller; 7. Conical pin; 8. Guide rod; 9. Connector; 10. Vertical plate; 11. Middle plate; 12. Connecting plate 1; 13. Hydraulic cylinder; 14. Upper pressing seat; 15. Positioning plate; 16. Swing arm; 17. Drive plate; 18. Fixed plate; 19. Drive motor; 20. Vacuum suction cup; 21. Lower pressing plate; 22. Injection molded part 2; 23. Bracket. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] An automatic pressing device for injection molded parts, such as Figures 1 to 4As shown, the device includes a support rod 2. From top to bottom, a top plate 3, a middle plate 11, and a support base 1 are welded to the outer circumference of the support rod 2. A slide rail is installed on the inner top wall of the top plate 3, and a slider 5 is slidably connected to the slide rail. An upper pressing seat 14 is fixed between the two sliders 5 by bolts. A crank rocker assembly is connected to one side of the outer wall of the upper pressing seat 14. A suction cup assembly is installed on the inner top wall of the upper pressing seat 14, and the suction cup assembly adsorbs an injection molded part 4 that is adapted to the inner diameter of the upper pressing seat 14. A hydraulic cylinder 13 is fixed to the outer bottom wall of the middle plate 11 by bolts, and a lower pressing plate 21 is fixed to the output end of the hydraulic cylinder 13 by a pin. An injection molded part 22 that is pressed between the injection molded part 4 and the lower pressing plate 21 is placed on the lower pressing plate 21.

[0028] When it is necessary to press injection molded part 22 and injection molded part 4 together, injection molded part 22 is first placed on the lower pressing plate 21. The lower pressing plate 21 is equipped with an electric heating wire, which can heat the lower pressing plate 21. The heated lower pressing plate 21 can soften injection molded part 22, ensuring the effect of subsequent pressing between injection molded part 22 and injection molded part 4. Then, injection molded part 4 is placed in the upper pressing seat 14, and the suction cup assembly is used to adsorb and fix injection molded part 4. During the pressing process, the hydraulic cylinder 13 drives the lower pressing plate 21 to move upward, so that the softened injection molded part 22 gradually moves into injection molded part 4. When injection molded part 22 and the top inner wall of injection molded part 4 are attached, the pressure of the output end of the hydraulic cylinder 13 is used to press injection molded part 22 and injection molded part 4 together. After pressing, the output end of the hydraulic cylinder 13 is reset.

[0029] To test the firmness of the bonding between injection molded part 22 and injection molded part 4, the upper pressing seat 14 is driven to reciprocate along the slide by a crank rocker assembly. If the bonding between injection molded part 22 and injection molded part 4 is firm, injection molded part 22 will not fall out of injection molded part 4 during the reciprocating motion of the upper pressing seat 14. If the bonding between injection molded part 22 and injection molded part 4 is not firm, injection molded part 22 will fall out of injection molded part 4 during the reciprocating motion. In this way, the firmness between injection molded part 4 and injection molded part 22 can be tested to ensure the bonding effect.

[0030] The crank rocker assembly includes a fixed plate 18 and a drive motor 19. The fixed plate 18 is fixed to the bottom outer wall of the top plate 3 by bolts, and the drive motor 19 is fixed to one side outer wall of the fixed plate 18 by bolts. The output end of the drive motor 19 is connected to a drive disk 17 through a coupling. A bracket 23 is fixed to one side outer wall of the upper pressing seat 14 by bolts. A swing arm 16 is rotatably connected between the inner wall of the bracket 23 and one side outer wall of the drive disk 17.

[0031] When the drive motor 19 drives the drive disk 17 to rotate, the swing arm 16 converts the circular motion of the drive disk 17 into the lateral reciprocating motion of the upper pressing seat 14 along the slide, thereby detecting the firmness of the pressing between the injection molded part 1 4 and the injection molded part 2 22.

[0032] The slide rail component includes a guide rod 8 and a vertical plate 10. Both vertical plates 10 are fixed to the bottom outer wall of the top plate 3 by bolts, and the guide rod 8 is fixed between the two vertical plates 10 by pins. The slider 5 and the guide rod 8 are slidably connected.

[0033] The guide rod 8 can guide the movement path of the slider 5, so that the upper pressing seat 14 can move along the guide rod 8 through the slider 5.

[0034] The suction cup assembly includes a connector 9 and a vacuum suction cup 20. The connector 9 is fixed to the inner wall of the through hole at the top of the upper pressing seat 14 by an embedding method, and the vacuum suction cup 20 is fixed to the bottom of the connector 9.

[0035] Before pressing, the connector 9 is connected to the negative pressure generating device. After the injection molded part 4 and the vacuum suction cup 20 are attached, the vacuum suction cup 20 is used to adsorb the injection molded part 4. The vacuum suction cup 20 adsorbs the object by forming a negative pressure. When a vacuum is formed inside the vacuum suction cup 20, the external atmospheric pressure will generate inward pressure on the air inside the vacuum suction cup 20. This pressure difference overcomes the gravity or other external forces of the adsorbed object, thereby achieving stable adsorption. The specific operation process and principle are existing technologies and will not be elaborated on in detail here.

[0036] The controller 6 is fixed to the top outer wall of the intermediate plate 11 by bolts, and the controller 6 is used to control the drive motor 19 and the hydraulic cylinder 13.

[0037] After the firmness test is completed, the controller 6 will control the drive motor 19 to rotate in the opposite direction, and reset the upper pressing seat 14 to the initial position through the crank rocker assembly. At the same time, the controller 6 will control the output end of the hydraulic cylinder 13 to reset, so as to facilitate the subsequent pressing operation.

[0038] Working principle: First, injection molded part 22 is placed on the lower pressing plate 21. The heating wire inside the lower pressing plate 21 starts working to soften injection molded part 22 to improve the pressing effect. Injection molded part 4 is placed in the upper pressing seat 14 and is adsorbed and fixed by the suction cup assembly. The suction cup assembly is connected to the negative pressure generating device through the connector 9 to form negative pressure adsorption. The controller 6 controls the hydraulic cylinder 13 to start, driving the lower pressing plate 21 to move upward, so that the softened injection molded part 22 gradually contacts and adheres to injection molded part 4. When injection molded part 22 is completely adhered to the top inner wall of injection molded part 4, the hydraulic cylinder 13 continues to apply pressure to press injection molded part 22 and injection molded part 4 together. After pressing is completed, the controller 6 controls the output end of the hydraulic cylinder 13 to reset, preparing for the next pressing. The controller 6 starts the drive motor. 19. Drive motor 19 drives drive disk 17 to rotate via coupling. Swing arm 16 converts the circular motion of drive disk 17 into the lateral reciprocating motion of upper pressing seat 14 along slide rail. The slide rail consists of guide rod 8 and vertical plate 10, which guide the movement path of upper pressing seat 14. During the reciprocating motion, if the pressing between injection molded part 22 and injection molded part 4 is firm, injection molded part 22 will not fall out of injection molded part 4. If the pressing is not firm, injection molded part 22 will fall out of injection molded part 4 during the reciprocating motion. After the firmness test is completed, controller 6 controls drive motor 19 to rotate in the opposite direction, and resets upper pressing seat 14 to the initial position through crank rocker assembly. At the same time, controller 6 controls hydraulic cylinder 13 output end to reset again to ensure that the equipment is in standby state for subsequent pressing operations.

[0039] Example 2

[0040] An automatic pressing device for injection molded parts, for positioning between the lower pressing plate 21 and the upper pressing seat 14, such as... Figures 1 to 4 As shown, this embodiment makes the following additions based on embodiment 1: both outer walls of the lower pressing plate 21 are fixed with connecting plates 12 by bolts, and the top outer wall of the connecting plate 12 is welded with a conical pin 7, and both outer walls of the upper pressing seat 14 are fixed with positioning plates 15 by bolts, and the surface of the positioning plate 15 is provided with insertion holes that are compatible with the conical pin 7.

[0041] When the hydraulic cylinder 13 drives the lower pressing plate 21 and the second injection molded part 22 to move into the injection molded part 4, the tapered pin 7 gradually moves into the insertion hole opened on the surface of the positioning plate 15. The tapered pin 7 and the insertion hole can be used to position the lower pressing plate 21 and the upper pressing seat 14, ensuring accurate docking between the second injection molded part 22 and the first injection molded part 4.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic press fitting apparatus for injection molded parts, comprising a support bar (2), characterized in that, The support rod (2) circumferential outer wall is welded with top plate (3), middle plate (11) and support seat (1) from top to bottom, and the inner wall of the top of the top plate (3) is provided with a slide member, and the slide member is movably connected with a sliding block (5), and the upper pressing seat (14) is fixed between the two sliding blocks (5), and the outer wall of one side of the upper pressing seat (14) is connected with a crank rocker assembly, the top inner wall of the upper pressing seat (14) is provided with a suction disc assembly, and the suction disc assembly is adsorbed with an injection molding part one (4) matched with the inner diameter of the upper pressing seat (14), the outer wall of the bottom of the middle plate (11) is fixed with a hydraulic cylinder (13), and the output end of the hydraulic cylinder (13) is fixed with a lower pressing plate (21) through a pin, and the lower pressing plate (21) is placed with an injection molding part two (22) for pressing between the injection molding part one (4).

2. An automatic press fitting apparatus for an injection molded member according to claim 1, characterized by The crank rocker assembly comprises a fixed plate (18) and a drive motor (19), the fixed plate (18) is fixed to the outer wall of the bottom of the top plate (3), and the drive motor (19) is fixed to the outer wall of one side of the fixed plate (18).

3. An automatic press fitting apparatus for an injection molded member according to claim 2, characterized by The output end of the drive motor (19) is connected with a drive disc (17) through a shaft coupling, and the outer wall of one side of the upper pressing seat (14) is fixed with a bracket (23), and the inner wall of the bracket (23) and the outer wall of one side of the drive disc (17) are movably connected with a swing arm (16).

4. The automatic press fitting apparatus for an injection molded piece according to claim 3, characterized by The slide member comprises a guide rod (8) and a vertical plate (10), the two vertical plates (10) are fixed to the outer wall of the bottom of the top plate (3), and the guide rod (8) is fixed between the two vertical plates (10) through a pin, and the sliding block (5) and the guide rod (8) are movably connected.

5. An automatic press fitting apparatus for an injection molded member according to claim 4, characterized in that, The suction disc assembly comprises a joint (9) and a vacuum suction disc (20), the joint (9) is fixed in the inner wall of the through hole formed in the top of the upper pressing seat (14) by embedding, and the vacuum suction disc (20) is fixed to the bottom of the joint (9).

6. An automatic press fitting apparatus for an injection molded member according to claim 5, wherein The top outer wall of the middle plate (11) is fixed with a controller (6), and the controller (6) is used for controlling the drive motor (19) and the hydraulic cylinder (13).

7. An automatic press fitting apparatus for an injection molded member according to claim 6, characterized by The outer wall of both sides of the lower pressing plate (21) is fixed with a connecting plate one (12), and the top outer wall of the connecting plate one (12) is welded with a tapered pin (7).

8. An automatic press fitting apparatus for an injection molded member according to claim 7, characterized by The outer wall of both sides of the upper pressing seat (14) is fixed with a positioning plate (15), and the surface of the positioning plate (15) is provided with a jack that is matched with the tapered pin (7).

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