Conveying device of injection molding machine

Abstract

The utility model discloses a conveying device of an injection molding machine, relates to the technical field of material processing, and aims to solve the problems that a screw rod can be overhauled only by dismantling a conveying pipe when the screw rod is overhauled by a worker, the process is too tedious, and the working efficiency is influenced. According to the technical scheme, the device is characterized by comprising a conveying pipe and a screw rod which are located on the injection molding machine, the conveying pipe comprises two arc-shaped frames which are rotationally connected with each other, the two arc-shaped frames are connected through a clamping assembly, through holes are formed in the side walls of the two arc-shaped frames, a rotating rod is rotationally connected into the through holes, and the rotating rod is detachably connected with the screw rod; sealing assemblies used for preventing materials from entering a gap between the two arc-shaped frames are arranged in the two arc-shaped frames. According to the utility model, through the arrangement of the two arc-shaped frames and the clamping assembly, the effect that the screw rod can be overhauled without dismounting the conveying pipe from the injection molding machine is realized, the operation steps of workers during overhauling are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material processing, and more specifically, to a conveying device for an injection molding machine. Background Art

[0002] Injection molding machines are common machines used in material processing. They heat the material, apply high pressure to the heated material, transport the material into a mold, and use the mold to inject the material into the required parts. The parts produced in this way have high production efficiency and low dimensional errors.

[0003] During injection molding, the existing injection molding machine installs the two molds and the injection molding machine together, and then uses a hydraulic cylinder to compact the two molds to reduce the gap between the two molds. The material is then poured into the hopper and transported to the delivery pipe through the hopper. At the same time, the material is heated and softened by the screw rod in the water pipe. The screw rod is then driven to rotate to transport the material in the delivery pipe toward the mold, and the softened material is transported into the mold. After the material in the mold cools and takes shape, the material will form parts according to the shape in the mold. The two molds are then separated and the parts are removed from the mold to complete the injection molding of the parts.

[0004] However, after the injection molding machine has been used for a long time, the screw rod will be affected by the material and will cause a certain degree of wear, which will cause the material to be blocked in the conveying pipe. Therefore, the staff needs to regularly inspect the screw rod. However, when the staff inspects the screw rod, the conveying pipe needs to be removed from the injection molding machine before the screw rod can be inspected. After the inspection, the conveying pipe needs to be reinstalled on the injection molding machine. The process is too cumbersome and affects work efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an injection molding machine conveying device, which solves the problem that when workers repair the screw rod, they need to remove the conveying pipe before they can repair the screw rod, which is a cumbersome process and affects work efficiency.

[0006] The above technical objectives of the present utility model are achieved through the following technical solutions: a conveying device for an injection molding machine, comprising a conveying pipe and a screw rod located on the injection molding machine, the conveying pipe comprising two arc-shaped frames rotatably connected to each other, the two arc-shaped frames being connected by a clamping assembly, through holes being provided on the side walls of the two arc-shaped frames, a rotating rod being rotatably connected in the through holes, the rotating rod and the screw rod being detachably connected, and a sealing assembly being provided in the two arc-shaped frames for preventing material from entering the gap between the two arc-shaped frames.

[0007] By adopting the above-mentioned structure, when the screw rod needs to be repaired, the restriction of the two arc frames is removed by the clamping assembly, and then one of the arc frames is driven to rotate upward, driving the two arc frames to separate from each other, and then the sealing assembly is removed from the arc frame. At this time, the screw rod is exposed to the outside world, and then the screw rod is removed from the rotating rod. At this time, the screw rod loses its restriction and can be removed from the arc frame and repaired. After the repair of the screw rod is completed, the screw rod is placed in the arc frame and installed with the rotating rod. Then the sealing assembly is placed on the rotating rod, and one of the arc frames is driven to return to its original position. Then, the two arc frames are clamped to each other by the clamping assembly, thereby achieving the effect of repairing the screw rod without removing the conveying pipe from the injection molding machine, reducing the operating steps of the staff during maintenance and improving work efficiency. When the screw rod needs to be driven to rotate, the rotating rod is driven to rotate by the motor on the injection molding machine, and the rotating rod drives the screw rod to rotate at the same time, thereby achieving the effect of rotating the rotating rod and avoiding affecting normal use.

[0008] The utility model is further configured as follows: the clamping assembly includes a plurality of fixed blocks fixedly connected to one of the side walls of the arc-shaped frame, a plurality of movable blocks slidably connected to the other side wall of the arc-shaped frame, a plurality of the fixed blocks are fixedly connected to limit blocks, and a plurality of the movable blocks have limit grooves at the bottom thereof for the limit blocks to slide, and when the limit blocks enter the limit grooves, the two arc-shaped frames fit together.

[0009] By adopting the setting of the above-mentioned clamping assembly, when the two arc frames need to be separated from each other, a thrust is applied to the several moving blocks to drive the several moving blocks to move along the side wall of one of the arc frames, and at the same time drive the limit blocks and the limit grooves to separate from each other. At this time, the restrictions between the two arc frames are lost, and one of the arc frames can be driven to rotate and separate from the other arc frame. When the two arc frames need to be clamped to each other, the several moving blocks are driven to move toward the fixed block, and at the same time drive the limit blocks into the limit grooves. At this time, the two arc frames are affected by the limit blocks and the limit grooves, so that the two arc frames cannot rotate, thereby achieving the effect of clamping the two arc frames to each other. Through the setting of the moving blocks and the fixed blocks, it is convenient for staff to operate and improve work efficiency.

[0010] The utility model is further configured as follows: the sealing assembly includes a connecting frame 1 and a connecting frame 2, and one side of the connecting frame 1 and the connecting frame 2 is fixedly connected with two inclined positioning blocks, and the two positioning blocks are respectively located at the connection of the two arc-shaped frames, and the connecting frame 1 and the inner side of one of the arc-shaped frames are in contact with each other. When the two arc-shaped frames are fitted together, the inclined surfaces of the positioning blocks on the connecting frame 1 and the connecting frame 2 abut against each other.

[0011] By adopting the setting of the above-mentioned sealing assembly, after the two arc frames are separated from each other, the connecting frame 1 is lifted upward, and at the same time, the positioning blocks on the connecting frame 1 and the connecting frame 2 are driven to separate from each other. At this time, the spiral rod is exposed to the outside world. After the inspection of the spiral rod is completed, the connecting frame 1 is placed above the connecting frame 2, and the inclined surfaces of the two positioning blocks are driven to contact each other, and then one of the arc frames is driven back to its original position and engaged with the other arc frame. At this time, the two positioning blocks are subjected to the pressure applied by one of the arc frames, driving the inclined surfaces of the two positioning blocks to abut against each other at the connection of the two arc frames, so that the two positioning blocks are tightly fitted. At this time, the material is restricted by the two positioning blocks and cannot enter the inside of the two arc frames, thereby improving the sealing effect between the two arc frames.

[0012] The utility model is further configured as follows: a movable plate is slidably connected to the inner side of one of the arc-shaped frames, the movable plate and one of the arc-shaped frames are connected by a spring, and when the two arc-shaped frames are fitted together, the movable plate and the two side walls of the connecting frame abut against each other.

[0013] By adopting the above-mentioned structural setting, when one of the arc frames is driven to return to its original position, one of the arc frames drives the movable plate to move and contact with the connecting frame 1, and then one of the arc frames continues to rotate and engages with the other arc frame. At this time, the movable plate is affected by the pressure to move in the direction of spring 1, and drives spring 1 to deform and compress. The elastic potential energy released after the deformation and compression of spring 1 drives the movable plate to apply pressure to the connecting frame 2, and then drives the inclined surfaces of the two positioning blocks to abut against each other. Through the setting of spring 1 and the movable plate, the abutment between the two positioning blocks can be made tighter, further improving the sealing effect.

[0014] The utility model is further configured as follows: one end of the spiral rod is fixedly connected to a mounting rod, one end of the rotating rod is provided with a sliding groove for the mounting rod to slide, the rotating rod is provided with a rotating groove that is mutually conductive with the sliding groove, the rotating groove is rotatably connected to a limit rod, the limit rod is fixedly connected to a connecting block, the mounting rod is provided with a groove for the connecting block to slide, the mounting rod is provided with a through groove for the limit rod to rotate, the limit rod and the rotating groove are connected by a torsion spring, and when the torsion spring is in a natural state, the limit rod is vertically arranged.

[0015] When the cam is in a state of being moved away from the engagement of the locking lever and the locking mechanism, the locking lever is moved in a direction opposite to the engagement of the locking lever, and the locking lever and the locking mechanism are moved away from each other, thereby achieving the effect of driving the cam and the locking mechanism to separate from each other.

[0016] The utility model is further configured as follows: an abutment plate is slidably connected in the groove, the abutment plate and the groove are connected by spring 2, when the spring 2 is in a natural state, the abutment plate and the connecting block contact each other, and the elastic potential energy of the spring 1 is greater than the elastic potential energy of the spring 2.

[0017] By adopting the above-mentioned structural arrangement, when the connecting block enters the groove, the fixing effect of the connecting block on the groove can be improved, and it can also be convenient for the staff to judge whether the connecting block enters the groove.

[0018] The utility model is further configured as follows: two placement grooves are opened on the connection frame, and handles are rotatably connected in the placement grooves.

[0019] By adopting the above-mentioned handle arrangement, it is convenient for workers to remove the connecting frame 1 from the connecting frame 2.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. When the screw rod needs to be repaired, the restriction on the two arc frames is removed by the clamping assembly, and the two arc frames can be driven to separate from each other. Then the sealing assembly is removed from the arc frame. At this time, the screw rod is exposed to the outside world. This achieves the effect of repairing the screw rod without removing the conveying pipe from the injection molding machine, reducing the operating steps of the staff during maintenance and improving work efficiency.

[0022] Second, when the material enters the arc frame, the setting of the sealing component can improve the sealing effect between the two arc frames, preventing the material from entering the gap between the two arc frames, resulting in the problem of being unable to drive the arc frame to rotate, thereby avoiding affecting normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the arc frame, rotating rod, fixed block, moving block, and limiting rod in the utility model;

[0025] Figure 3 This is a cross-sectional view of the spiral rod, arc frame, and sealing assembly in the present invention;

[0026] Figure 4 for Figure 3 A magnified view of point A;

[0027] Figure 5 This is a cross-sectional view of the spiral rod, rotating rod, clamping assembly, and sealing assembly in the present invention;

[0028] Figure 6 It is a structural diagram of the arc frame, rotating rod, clamping assembly, sealing assembly and handle in the utility model.

[0029] In the figure: 1. Screw rod; 2. Arc frame; 3. Through hole; 4. Rotating rod; 5. Fixed block; 6. Moving block; 7. Limit block; 8. Limit groove; 9. Connecting frame 1; 10. Positioning block; 11. Moving plate; 12. Spring 1; 13. Mounting rod; 14. Slide groove; 15. Rotating groove; 16. Limit rod; 17. Connecting block; 18. Groove; 19. Through groove; 20. Torsion spring; 21. Abutment plate; 22. Spring 2; 23. Placement groove; 24. Handle; 25. Connecting frame 2. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a connection between two components, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] A conveying device for an injection molding machine, such as Figures 1-6 As shown, it includes a conveying pipe and a screw rod 1 located on the injection molding machine. The conveying pipe includes two arc-shaped frames 2 that are rotatably connected to each other. The two arc-shaped frames 2 are connected by a clamping assembly. A through hole 3 is opened on the side walls of the two arc-shaped frames 2. A rotating rod 4 is rotatably connected in the through hole 3. The rotating rod 4 and the screw rod 1 are detachably connected. A sealing assembly is provided in the two arc-shaped frames 2 to prevent material from entering the gap between the two arc-shaped frames 2. When the screw rod 1 needs to be repaired, the restriction on the two arc-shaped frames 2 is cancelled by the clamping assembly, and then one of the arc-shaped frames 2 is driven to rotate upward, driving the two arc-shaped frames 2 to separate from each other, and then the sealing assembly is removed from the arc-shaped frame 2. At this time, the screw rod 1 is exposed to the outside world, and then the screw rod 1 is removed from the rotating rod 4. At this time, the screw rod 1 loses its restriction, can be removed from the arc-shaped frame 2, and the screw rod 1 is repaired.

[0034] After the screw rod 1 is overhauled, the screw rod 1 is placed in the arc frame 2 and installed with the rotating rod 4. Then the sealing assembly is placed on the rotating rod 4, and one of the arc frames 2 is driven back to its original position. Then, the two arc frames 2 are clamped to each other through the clamping assembly, thereby achieving the effect of overhauling the screw rod 1 without removing the conveying pipe from the injection molding machine, reducing the operating steps of the staff during maintenance and improving work efficiency. When the screw rod 1 needs to be driven to rotate, the rotating rod 4 is driven to rotate by the motor on the injection molding machine, and the rotating rod 4 drives the screw rod 1 to rotate at the same time, thereby achieving the effect of rotating the rotating rod 4 and avoiding affecting normal use.

[0035] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6As shown, the clamping assembly includes a plurality of fixed blocks 5 fixedly connected to the side wall of one of the arc-shaped frames 2, and a plurality of movable blocks 6 are slidably connected to the side wall of the other arc-shaped frame 2. The plurality of fixed blocks 5 are fixedly connected to the limiting blocks 7. The bottom of the plurality of movable blocks 6 is provided with limiting grooves 8 for the limiting blocks 7 to slide. When the limiting blocks 7 enter the limiting grooves 8, the two arc-shaped frames 2 fit together. When the two arc-shaped frames 2 need to be separated from each other, a thrust is applied to the plurality of movable blocks 6 to drive the plurality of movable blocks 6 to move along the side wall of one of the arc-shaped frames 2, and at the same time drive the limiting blocks 7 and the limiting grooves 8 to separate from each other. At this time, the two arc frames 2 lose their restriction, and one of the arc frames 2 can be driven to rotate and separate from the other arc frame 2. When the two arc frames 2 need to be clamped together, the several moving blocks 6 are driven to move toward the fixed block 5, and at the same time, the limit blocks 7 are driven to enter the limit grooves 8. At this time, the two arc frames 2 are affected by the limit blocks 7 and the limit grooves 8, so that the two arc frames 2 cannot rotate, thereby achieving the effect of clamping the two arc frames 2 together. The arrangement of the moving blocks 6 and the fixed blocks 5 can facilitate operation by the staff and improve work efficiency.

[0036] like Figure 3 and Figure 5 As shown, the sealing assembly includes a connecting frame 9 and a connecting frame 25, and one side of the connecting frame 9 and the connecting frame 2 25 is fixedly connected with two inclined positioning blocks 10, and the two positioning blocks 10 are respectively located at the connection of the two arc-shaped frames 2. The connecting frame 9 and the inner side of one of the arc-shaped frames 2 are in contact with each other. When the two arc-shaped frames 2 are fitted together, the inclined surfaces of the positioning blocks 10 on the connecting frame 9 and the connecting frame 2 25 abut against each other. After the two arc-shaped frames 2 are separated from each other, the connecting frame 9 is lifted upward, and at the same time, the positioning blocks 10 on the connecting frame 9 and the connecting frame 2 25 are driven to separate from each other. At this time, the screw rod 1 After the screw rod 1 is exposed to the outside world and the inspection is completed, the connecting frame 1 9 is placed above the connecting frame 2 25, and the inclined surfaces of the two positioning blocks 10 are driven to contact each other, and then one of the arc-shaped frames 2 is driven back to its original position and engaged with the other arc-shaped frame 2. At this time, the two positioning blocks 10 are subjected to the pressure applied by one of the arc-shaped frames 2, driving the inclined surfaces of the two positioning blocks 10 to abut against each other at the connection of the two arc-shaped frames 2, so that the two positioning blocks 10 fit tightly together. At this time, the material is restricted by the two positioning blocks 10 and cannot enter the two arc-shaped frames 2, thereby improving the sealing effect between the two arc-shaped frames 2.

[0037] One of the arc-shaped frames 2 is slidably connected to a moving plate 11 on the inside. The moving plate 11 and one of the arc-shaped frames 2 are connected by a spring 12. When the two arc-shaped frames 2 are fitted together, the moving plate 11 and the side walls of the connecting frame 25 abut against each other. When one of the arc-shaped frames 2 is driven back to its original position, one of the arc-shaped frames 2 drives the moving plate 11 to move and contact the connecting frame 9. Then, one of the arc-shaped frames 2 continues to rotate and engages with the other arc-shaped frame 2. At this time, the moving plate 11 is affected by the pressure and moves in the direction of the spring 12. , and drives the spring 12 to deform and compress. The elastic potential energy released after the deformation and compression of the spring 12 drives the movable plate 11 to apply pressure to the connecting frame 25, thereby driving the inclined surfaces of the two positioning blocks 10 to abut against each other. Through the arrangement of the spring 12 and the movable plate 11, the abutment between the two positioning blocks 10 can be made tighter, further improving the sealing effect. Two placement grooves 23 are provided on the connecting frame 9, and a handle 24 is rotatably connected in the placement groove 23, which can facilitate the staff to remove the connecting frame 9 from the connecting frame 2 25.

[0038] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 As shown, one end of the spiral rod 1 is fixedly connected to the mounting rod 13, and one end of the rotating rod 4 is provided with a slide groove 14 for the mounting rod 13 to slide. The rotating rod 4 is provided with a rotating groove 15 that is mutually conductive with the slide groove 14. A limit rod 16 is rotatably connected in the rotating groove 15, and a connecting block 17 is fixedly connected to the limit rod 16. A groove 18 for the connecting block 17 to slide is provided on the mounting rod 13, and a through groove 19 for the limiting rod 16 to rotate is provided on the mounting rod 13. The limiting rod 16 and the rotating groove 15 are connected by a torsion spring 20. When the torsion spring 20 is in a natural state, the limiting rod 16 is vertically arranged. When the screw rod 1 and the rotating rod 4 are installed to each other, the installation rod 13 is inserted into the slide groove 14 and the installation rod 13 is driven to move along the slide groove 14. When the installation rod 13 and the limit rod 16 contact each other, the installation rod 13 is continued to be driven to move. At this time, the limit rod 16 is affected and rotates, and drives the connecting block 17 to enter the groove 18, and at the same time drives the torsion spring 20 to undergo elastic deformation. At this time, the installation rod 13 and the rotating rod 4 are restricted by the connecting block 17, so that the rotating rod 4 and the screw rod 1 cannot be separated, thereby achieving the effect of installing the screw rod 1 and the rotating rod 4 to each other.

[0039] When it is necessary to drive the spiral rod 1 and the rotating rod 4 to separate from each other, the mounting rod 13 continues to be driven to move along the slide groove 14. When the mounting rod 13 moves to drive the limit rod 16 and the through groove 19 to contact each other, the torsion spring 20 cancels the restriction and deforms and recovers, and drives the connecting block 17 and the groove 18 to separate from each other through the limit rod 16, and then the mounting rod 13 is pulled out of the slide groove 14. At this time, the limit rod 16 is affected by the through groove 19 to rotate in the opposite direction, and drives the mounting rod 13 and the slide groove 14 to separate from each other, thereby achieving driving. In order to separate the spiral rod 1 and the rotating rod 4 from each other, an abutment plate 21 is slidably connected in the groove 18, and the abutment plate 21 and the groove 18 are connected by a second spring 22. When the second spring 22 is in a natural state, the abutment plate 21 and the connecting block 17 contact each other. The elastic potential energy of the first spring 12 is greater than the elastic potential energy of the second spring 22. When the connecting block 17 enters the groove 18, the fixing effect of the connecting block 17 on the groove 18 can be improved, and it can also be convenient for the staff to judge whether the connecting block 17 has entered the groove 18.

[0040] The working principle of the present invention is as follows: when the screw rod 1 needs to be inspected and repaired, a thrust is applied to the several moving blocks 6 to drive the several moving blocks 6 to move along the side wall of one of the arc-shaped frames 2, and at the same time drive the limit blocks 7 and the limit grooves 8 to separate from each other. At this time, the restrictions between the two arc-shaped frames 2 are lost, and one of the arc-shaped frames 2 can be driven to rotate and separate from the other arc-shaped frame 2. Then, the connecting frame 1 9 is lifted upward, and at the same time, the positioning blocks 10 on the connecting frame 1 9 and the connecting frame 2 25 are driven to separate from each other. At this time, the screw rod 1 is exposed to the outside world, and then the screw rod 1 is removed from the rotating rod 4. At this time, the screw rod 1 loses its restriction, and the screw rod 1 can be taken out of the arc-shaped frame 2 and the screw rod 1 is inspected and repaired.

[0041] After the screw rod 1 is overhauled, the screw rod 1 is placed in the arc frame 2 and installed with the rotating rod 4, and then the connecting frame 1 9 is placed above the connecting frame 25, and the inclined surfaces of the two positioning blocks 10 are driven to contact each other, and then one of the arc frames 2 is driven to return to its original position, and one of the arc frames 2 is driven to return to its original position, and then the several moving blocks 6 are driven to move in the direction of the fixed block 5, and at the same time, the limit block 7 is driven to enter the limit groove 8. At this time, the two arc frames 2 are affected by the limit blocks 7 and the limit groove 8, so that the two arc frames 2 cannot rotate, thereby achieving the effect of overhauling the screw rod 1 without removing the conveying pipe from the injection molding machine, reducing the operating steps of the staff during maintenance and improving work efficiency. When the screw rod 1 needs to be driven to rotate, the rotating rod 4 is driven to rotate by the motor on the injection molding machine, and the rotating rod 4 drives the screw rod 1 to rotate, thereby achieving the effect of rotating the rotating rod 4, avoiding affecting normal use.

[0042] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A conveying device for an injection molding machine, comprising a conveying pipe and a screw rod (1) located on the injection molding machine, characterized in that: The conveying pipe comprises two arc-shaped frames (2) rotatably connected to each other, the two arc-shaped frames (2) are connected via a snap-fit ​​assembly, through holes (3) are provided on the side walls of the two arc-shaped frames (2), a rotating rod (4) is rotatably connected in the through hole (3), the rotating rod (4) and the spiral rod (1) are detachably connected, and a sealing assembly is provided in the two arc-shaped frames (2) for preventing material from entering the gap between the two arc-shaped frames (2).

2. The conveying device for an injection molding machine according to claim 1, characterized in that: The clamping assembly comprises a plurality of fixed blocks (5) fixedly connected to the side wall of one of the arc-shaped frames (2), a plurality of movable blocks (6) slidably connected to the side wall of the other arc-shaped frame (2), a plurality of fixed blocks (5) being fixedly connected to limit blocks (7), a plurality of movable blocks (6) having limit grooves (8) at the bottom thereof for the limit blocks (7) to slide, and when the limit blocks (7) enter the limit grooves (8), the two arc-shaped frames (2) are fitted to each other.

3. The conveying device for an injection molding machine according to claim 1, characterized in that: The sealing assembly includes a connecting frame 1 (9) and a connecting frame 2 (25), one side of each of the connecting frame 1 (9) and the connecting frame 2 (25) is fixedly connected with two inclined positioning blocks (10), the two positioning blocks (10) are respectively located at the connection of the two arc-shaped frames (2), the connecting frame 1 (9) and the inner side of one of the arc-shaped frames (2) are in contact with each other, and when the two arc-shaped frames (2) are fitted together, the inclined surfaces of the positioning blocks (10) on the connecting frame 1 (9) and the connecting frame 2 (25) abut against each other.

4. The conveying device for an injection molding machine according to claim 3, characterized in that: A movable plate (11) is slidably connected to the inner side of one of the arc-shaped frames (2), and the movable plate (11) and one of the arc-shaped frames (2) are connected via a spring (12). When the two arc-shaped frames (2) are fitted together, the movable plate (11) and the side wall of the connecting frame (2) abut against each other.

5. The conveying device for an injection molding machine according to claim 4, characterized in that: One end of the spiral rod (1) is fixedly connected to the mounting rod (13), one end of the rotating rod (4) is provided with a slide groove (14) for the mounting rod (13) to slide, the rotating rod (4) is provided with a rotating groove (15) which is mutually conductive with the slide groove (14), a limiting rod (16) is rotatably connected in the rotating groove (15), a connecting block (17) is fixedly connected to the limiting rod (16), the mounting rod (13) is provided with a groove (18) for the connecting block (17) to slide, the mounting rod (13) is provided with a through groove (19) for the limiting rod (16) to rotate, the limiting rod (16) and the rotating groove (15) are connected via a torsion spring (20), and when the torsion spring (20) is in a natural state, the limiting rod (16) is vertically arranged.

6. The conveying device for an injection molding machine according to claim 5, characterized in that: An abutment plate (21) is slidably connected in the groove (18), and the abutment plate (21) and the groove (18) are connected via a second spring (22). When the second spring (22) is in a natural state, the abutment plate (21) and the connecting block (17) are in contact with each other, and the elastic potential energy of the first spring (12) is greater than the elastic potential energy of the second spring (22).

7. The conveying device for an injection molding machine according to claim 3, characterized in that: The connecting frame 1 (9) is provided with two placement grooves (23), and a handle (24) is rotatably connected in the placement groove (23).

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