A material unloading and lifting pallet mechanism for injection molding machines

Abstract

This utility model relates to the technical field of auxiliary equipment for injection molding machines, specifically a material unloading and lifting pallet mechanism for injection molding machines. The utility model includes a frame, with two forks mounted on the bottom of the frame. Rollers are mounted on the bottom of each fork. A drive rod is mounted on the surface of the frame, and two circular grooves are formed on the surface of the frame. A first spring is fixedly connected to the inner wall of each of the two circular grooves. A sliding rod is fixedly connected to the other end of each first spring, and the sliding rod is slidably connected to the inner wall of the circular groove. A fixing plate is fixedly connected to the end of each sliding rod away from the first spring. This invention solves the problem that existing fork structures are simple in design, only providing basic support for the pallet and lacking reliable fixing measures. During the movement of the vehicle body, forks, and pallet on the forks, if the rollers roll at a high speed or encounter bumps, the pallet can easily slip off the forks or tip over due to vibration.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for injection molding machines, and in particular to a material unloading and lifting pallet mechanism for injection molding machines. Background Technology

[0002] In the injection molding process, after the injection molding machine completes the injection molding, the molded product needs to be removed from the injection molding mold and transferred to the subsequent processing or storage area. Electric pallet trucks have a certain application in the material unloading stage of injection molding machines. Because they have lifting and handling functions, some companies have tried to use them to undertake the pallet transfer work after the injection molding machine unloads the material. The drive components drive the frame and the forks on the frame to move, and then drive the forks to lift the pallet and transport it.

[0003] Regarding the above and existing related technologies, the inventor believes that the following defects often exist: the existing fork structure design is simple, only plays a basic supporting role for the pallet, and lacks reliable fixing measures. When the vehicle body moves the forks and the pallet on the forks, if the rollers roll at a high speed or encounter bumps, the pallet can easily slip off the forks or tip over due to vibration. Therefore, in order to solve the above problems, an injection molding machine unloading and lifting pallet mechanism is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing technologies, such as the simple design of existing fork structures, which only provide basic support for the pallet and lack reliable fixing measures. When the vehicle body moves the forks and the pallet on the forks, the pallet can easily slip off the forks or tip over due to vibration, especially if the rollers roll at a high speed or encounter bumps. Therefore, this utility model proposes a pallet lifting mechanism for injection molding machines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a material unloading and lifting pallet mechanism for an injection molding machine, comprising a frame, two forks mounted on the bottom of the frame, rollers mounted on the bottom of each fork, a drive rod mounted on the surface of the frame, two circular grooves formed on the surface of the frame, a first spring fixedly connected to the inner wall of each of the two circular grooves, a sliding rod fixedly connected to the other end of each first spring, the sliding rod slidingly connected to the inner wall of the circular groove, a fixing plate fixedly connected to the end of each sliding rod away from the first spring, a mounting bracket fixedly connected to the upper surface of each of the two forks, a plurality of second springs fixedly connected to the inner wall of the mounting bracket, a fixing block slidingly connected to the inner wall of the mounting bracket, the fixing block being fixedly connected to the end of each of the plurality of second springs away from the rollers.

[0006] The aforementioned components achieve the following effects: by connecting the slide rod and the fixing plate with the first spring in the circular groove of the frame, and connecting the fixing block with the second spring in the fork mounting bracket, the pallet can be fixed when it needs to be transferred after the injection molding machine unloads the material. At the same time, when encountering bumpy road sections during transportation, the first spring and the second spring can play a buffering role, absorbing the impact force from the road surface and greatly reducing vibration.

[0007] Preferably, the inner wall of the mounting bracket has two sliding grooves, and the inner walls of the two sliding grooves are slidably connected to a sliding plate, the surface of which is fixedly connected to a fixing block.

[0008] The effect achieved by the above components is that when the pallet fixed to the forks is impacted, the slide plate can slide smoothly in the groove, guide the fixed block to move precisely, and allow the second spring to fully play its buffering role, ensuring that the pallet always remains stable.

[0009] Preferably, both the fixing block and the fixing plate have circular protrusions fixedly connected to their surfaces, and the circular protrusions are made of elastic material.

[0010] The effect achieved by the above components is that the circular protrusions, due to their elastic properties, can fit tightly against the surface of the pallet, enhancing the friction between the two and thus effectively preventing materials from sliding or shifting on the pallet.

[0011] Preferably, a first arc-shaped block and a second arc-shaped block are fixedly connected to one side of the fork. A round rod is fixedly connected to the side of the first arc-shaped block and the second arc-shaped block that are close to each other. A baffle is rotatably connected to the arc surface of the round rod. A slot is opened on the surface of the baffle that is close to it. An arc-shaped plate is fixedly connected to the side of the first arc-shaped block that is away from the baffle. A plug rod is slidably inserted into the arc-shaped plate. The plug rod is slidably connected to the inner wall of the slot of the baffle.

[0012] The effect achieved by the above components is as follows: when the pallet is placed on the forks, the rotatable baffle can be erected and fixed in position by the cooperation of the insert rod and the arc plate. At this time, the baffle can effectively prevent the pallet from sliding off the side of the forks due to inertia or vibration, ensuring the stability and safety of the pallet during the handling process, thereby reducing the risk of falling and improving the reliability of the transfer.

[0013] Preferably, a circular block is fixedly connected to one end of the insertion rod, and a third spring is sleeved on the arc surface of the insertion rod. The two ends of the third spring are fixedly connected to the circular block and the first arc block, respectively.

[0014] The effect achieved by the above components is that when the insertion rod is aligned with the baffle slot, the elastic force of the third spring will drive the round block and thus drive the insertion rod to automatically insert into the inner wall of the baffle slot, improving its convenience.

[0015] Preferably, the arc surface of the round rod is fitted with a first torsion spring and a second torsion spring, the two ends of the first torsion spring being fixedly connected to the first arc block and the baffle respectively, and the two ends of the second torsion spring being fixedly connected to the second arc block and the baffle respectively.

[0016] The effect achieved by the above components is that when the baffle is no longer needed to block the movement and is released from its fixation, the torque of the first and second torsion springs will cause the baffle to automatically rotate to both sides on the arc surface of the rod, so as to be parallel to the forks, thus preventing the baffle from being damaged by contact with the ground when it automatically falls.

[0017] In summary, the beneficial effects of this utility model are as follows:

[0018] In this utility model, the structure of the first spring connecting the slide rod and the fixing plate in the circular groove of the frame, and the second spring connecting the fixing block in the fork mounting bracket, can fix the pallet when it needs to be transferred after the injection molding machine unloads the material. At the same time, when encountering bumpy road sections during transportation, the first spring and the second spring can play a buffering role, absorbing the impact force from the road surface and greatly reducing vibration. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 In this utility model Figure 1 A schematic diagram of a partial structure;

[0021] Figure 3 This is a schematic diagram of the mounting bracket in this utility model;

[0022] Figure 4 In this utility model Figure 3 Top view;

[0023] Figure 5 This is a schematic diagram of the structure of the first arc-shaped block in this utility model.

[0024] Legend: 1. Frame; 2. Forks; 3. Roller; 4. Circular groove; 5. First spring; 6. Slide rod; 7. Fixing plate; 8. Mounting bracket; 9. Second spring; 10. Fixing block; 11. Slide groove; 12. Slide plate; 13. Circular protrusion; 14. First arc-shaped block; 15. Round rod; 16. Baffle; 17. Arc-shaped plate; 18. Insert rod; 19. First torsion spring; 20. Circular block; 21. Third spring; 22. Drive rod; 23. Second arc-shaped block; 24. Second torsion spring. Detailed Implementation

[0025] Reference Figure 1-5As shown, this utility model provides a technical solution: a material unloading and lifting pallet mechanism for an injection molding machine, including a frame 1, two forks 2 mounted on the bottom of the frame 1, rollers 3 mounted on the bottom of each fork 2, a drive rod 22 mounted on the surface of the frame 1, two circular grooves 4 formed on the surface of the frame 1, a first spring 5 fixedly connected to the inner wall of each of the two circular grooves 4, a sliding rod 6 fixedly connected to the other end of the first spring 5, the sliding rod 6 slidingly connected to the inner wall of the circular groove 4, a fixing plate 7 fixedly connected to the end of each sliding rod 6 away from the first spring 5, a mounting bracket 8 fixedly connected to the upper surface of each of the two forks 2, a plurality of second springs 9 fixedly connected to the inner wall of the mounting bracket 8, a fixing block 10 slidably connected to the inner wall of the mounting bracket 8, and the fixing block 10 and the plurality of second springs 9 The end away from the roller 3 is fixedly connected, and the slide rod 6 is connected to the fixing plate 7 by the first spring 5 in the circular groove 4 of the frame 1, and the fixing block 10 is connected by the second spring 9 in the mounting bracket 8 of the fork 2. This structure can fix the pallet when it needs to be transferred after the injection molding machine unloads. At the same time, when encountering bumpy road sections during transportation, the first spring 5 and the second spring 9 can play a buffering role, absorbing the impact from the road surface and greatly reducing vibration. The inner wall of the mounting bracket 8 has two slide grooves 11, and the inner walls of the two slide grooves 11 are slidably connected to the slide plate 12. The surface of the slide plate 12 is fixedly connected to the fixing block 10. When the pallet fixed on the fork 2 is impacted, the slide plate 12 can slide smoothly in the slide groove 11, guiding the fixing block 10 to move precisely, allowing the second spring 9 to fill. To provide cushioning and ensure the pallet remains stable, both the fixed block 10 and the fixed plate 7 have circular protrusions 13 fixedly connected to their surfaces. These protrusions 13 are made of elastic material and, due to their elasticity, can closely conform to the pallet surface, enhancing the friction between them and effectively preventing materials from sliding or shifting on the pallet. A first arc-shaped block 14 and a second arc-shaped block 23 are fixedly connected to one side of the fork 2. A round rod 15 is fixedly connected to the side of the first arc-shaped block 14 and the second arc-shaped block 23 closest to each other. A baffle 16 is rotatably connected to the arc surface of the round rod 15. A slot is provided on the surface of the baffle 16 closest to each other. An arc-shaped plate 17 is fixedly connected to the side of the first arc-shaped block 14 away from the baffle 16. A rod 18 is slidably inserted into the arc-shaped plate 17. The rod 18 is slidably connected to the inner wall of the slot in the baffle 16. When the pallet is placed on the forks 2, the rotatable baffle 16 can be erected and fixed in position by the cooperation of the rod 18 and the arc plate 17. At this time, the baffle 16 can effectively prevent the pallet from sliding off the side of the forks 2 due to inertia or vibration, ensuring the stability and safety of the pallet during handling, thereby reducing the risk of falling and improving the reliability of transfer. One end of the rod 18 is fixedly connected to a round block 20, and the arc surface of the rod 18 is fitted with a third spring 21. The two ends of the third spring 21 are fixedly connected to the round block 20 and the first arc block 14, respectively. When the rod 18 is aligned with the slot in the baffle 16, the elastic force of the third spring 21 will drive the round block 20 and thus drive the rod 18 to automatically insert into the inner wall of the slot in the baffle 16.To improve its convenience, a first torsion spring 19 and a second torsion spring 24 are fitted onto the arc surface of the round rod 15. The two ends of the first torsion spring 19 are fixedly connected to the first arc-shaped block 14 and the baffle 16, respectively. The two ends of the second torsion spring 24 are fixedly connected to the second arc-shaped block 23 and the baffle 16, respectively. When the baffle 16 is no longer needed for obstruction and its fixing is released, the torque of the first torsion spring 19 and the second torsion spring 24 will cause the baffle 16 to automatically rotate to both sides on the arc surface of the round rod 15, aligning it parallel to the forks 2, thus preventing the baffle 16 from being damaged by contact with the ground during automatic descent.

[0026] Working principle: First, the pallet is placed on the fork 2. The sliding rod 6 connected to the first spring 5 in the circular groove 4 of the frame 1 and the fixing plate 7, as well as the fixing block 10 connected to the second spring 9 in the mounting bracket 8 of the fork 2, start to play their role in fixing the pallet. At the same time, the circular protrusion 13 of elastic material fits tightly against the pallet, increasing the friction to prevent the pallet from sliding and shifting, and preventing the pallet from sliding off the side of the fork 2. When the pallet slides off the side, it pushes the baffle 16 to rotate and stand upright on the arc surface of the circular rod 15. When the insert rod 18 is aligned with the slot of the baffle 16, the insert rod 18 automatically inserts into the slot of the baffle 16 under the elastic force of the third spring 21, fixing the baffle 16. When the baffle 16 is not needed and the pallet needs to be placed conveniently, the plug rod 18 can be pulled out to release the fixation. The first torsion spring 19 and the second torsion spring 24 drive the baffle 16 to automatically rotate on the arc surface of the round rod 15 until it is parallel to the fork 2, so as to avoid rapid downward rotation and damage from contact with the ground. When encountering bumpy sections during transportation, the first spring 5 and the second spring 9 buffer the impact and reduce the vibration of the pallet. When the pallet is impacted, the slide plate 12 inside the mounting bracket 8 slides smoothly in the slide groove 11, guiding the fixed block 10 to accurately displace, so that the second spring 9 can fully buffer and maintain the stability of the pallet.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An injection molding machine stripper lift tray mechanism comprising a carriage (1) characterized by: Two forks (2) are mounted on the bottom of the frame. Rollers (3) are mounted on the bottom of each fork (2). A drive rod (22) is mounted on the surface of the frame. Two circular grooves (4) are formed on the surface of the frame. A first spring (5) is fixedly connected to the inner wall of each of the two circular grooves (4). A sliding rod (6) is fixedly connected to the other end of the first spring (5). The sliding rod (6) is slidably connected to the inner wall of the circular groove (4). A fixing plate (7) is fixedly connected to the end of each sliding rod (6) away from the first spring (5). A mounting bracket (8) is fixedly connected to the upper surface of each fork (2). Several second springs (9) are fixedly connected to the inner wall of the mounting bracket (8). A fixing block (10) is slidably connected to the inner wall of the mounting bracket (8). The fixing block (10) is fixedly connected to the end of each of the second springs (9) away from the roller (3).

2. The material unloading and lifting pallet mechanism for an injection molding machine according to claim 1, characterized in that: The inner wall of the mounting bracket (8) has two sliding grooves (11), and the inner walls of the two sliding grooves (11) are slidably connected to a sliding plate (12), and the surface of the sliding plate (12) is fixedly connected to the fixing block (10).

3. The material unloading and lifting pallet mechanism for an injection molding machine according to claim 1, characterized in that: Both the fixing block (10) and the fixing plate (7) are fixedly connected with circular protrusions (13), which are made of elastic material.

4. The material unloading and lifting pallet mechanism for an injection molding machine according to claim 1, characterized in that: A first arc-shaped block (14) and a second arc-shaped block (23) are fixedly connected to one side of the fork (2). A round rod (15) is fixedly connected to the side of the first arc-shaped block (14) and the second arc-shaped block (23) that are close to each other. A baffle (16) is rotatably connected to the arc surface of the round rod (15). A slot is opened on the surface of the baffle (16) that is close to it. An arc plate (17) is fixedly connected to the side of the first arc-shaped block (14) that is away from the baffle (16). A plug rod (18) is slidably inserted into the arc plate (17). The plug rod (18) is slidably connected to the inner wall of the slot of the baffle (16).

5. The material unloading and lifting pallet mechanism for an injection molding machine according to claim 4, characterized in that: One end of the insertion rod (18) is fixedly connected to a round block (20), and a third spring (21) is sleeved on the arc surface of the insertion rod (18). The two ends of the third spring (21) are fixedly connected to the round block (20) and the first arc block (14) respectively.

6. The material unloading and lifting pallet mechanism for an injection molding machine according to claim 4, characterized in that: The circular rod (15) has a first torsion spring (19) and a second torsion spring (24)(19) on its arc surface. The two ends of the first torsion spring (19) are fixedly connected to the first arc block (14) and the baffle (16) respectively. The two ends of the second torsion spring (24)(19) are fixedly connected to the second arc block (23) and the baffle (16) respectively.

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