Hopper capable of being quickly disassembled and injection molding part

Abstract

The utility model relates to the technical field of injection molding parts, and discloses a hopper capable of being disassembled quickly and an injection molding part, the hopper comprises an injection molding part body and a feeding pipe fixedly installed in the middle of the top of the injection molding part body in a penetrating mode, and a discharging hopper is installed above an inner cavity of the feeding pipe in a sliding mode. A sealing plate is fixedly connected to the position, close to the lower end, of the outer side of the discharging hopper in a sleeving mode, and the bottom of the sealing plate is attached to the upper end of the feeding pipe. Inverted trapezoidal blocks on the four sides can be driven to synchronously move towards the outer side through operation of hydraulic push rods, at the moment, adjacent clamping rods can be driven to be away from adjacent clamping plates, and therefore the discharging hopper can be rapidly disassembled, and the inverted trapezoidal blocks can be easily recovered through arrangement of telescopic springs; the problem that in the prior art, a plurality of installation bolts are fixed to an injection molding machine, and the operation efficiency is low is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding components, specifically to a hopper and injection molding component that can be quickly disassembled. Background Technology

[0002] The drying hopper is installed on the injection molding part. The plastic raw material enters the injection molding part through the hopper and undergoes processes such as heating and melting, injection, and molding to form a molded product.

[0003] Existing quick-detachable hoppers and injection molding components are generally fixed to the injection molding machine with several mounting bolts. This installation method requires operators to screw in or out several mounting bolts to install and remove the hopper when installing or replacing it, resulting in low operating efficiency. In addition, most hoppers only have the function of discharging material and cannot meet the pretreatment of added granular raw materials, which is not conducive to better subsequent injection molding operations and results in poor performance.

[0004] Therefore, we propose a quick-disassembly hopper and injection molding component to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a hopper and injection molding component that can be quickly disassembled, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a detachable hopper, comprising an injection molded part body and a feeding pipe fixedly installed through the middle of the top of the injection molded part body, a discharge hopper slidably installed above the inner cavity of the feeding pipe, and a sealing plate fixedly sleeved on the outer side of the discharge hopper near the lower end, the bottom of the sealing plate being fitted to the upper end of the feeding pipe, and L-shaped snap-fit ​​plates fixedly installed on the four sides of the discharge hopper near the lower end, with snap-fit ​​components installed on the outer side of the L-shaped snap-fit ​​plates, and a pre-treatment component installed near the middle of the inner cavity of the discharge hopper;

[0007] The snap-fit ​​assembly includes several snap-fit ​​rods respectively disposed on the outer side of the L-shaped snap-fit ​​plate. The inner ends of the snap-fit ​​rods slide through and extend to the outer side of the adjacent L-shaped snap-fit ​​plates. An inverted trapezoidal block is fixedly installed on the outer end of each snap-fit ​​rod. A regular trapezoidal block engages with the bottom of each inverted trapezoidal block. Connecting rods are fixedly installed on both sides of each regular trapezoidal block. A pushing block is fixedly installed on the outer end of each adjacent connecting rod. A hydraulic push rod is provided at the bottom of each of the left and right pushing blocks. The power end of the hydraulic push rod is fixedly installed on the adjacent pushing block. The hydraulic push rods are arranged diagonally. The lower ends of the hydraulic push rods are fixedly installed on the injection molded part body.

[0008] Preferably, the outer side of the inverted trapezoidal block is provided with vertical plates, and the bottom of the vertical plates is fixedly installed on the injection molded part body. The inverted trapezoidal block and the adjacent vertical plates are elastically connected by telescopic springs.

[0009] Preferably, the pretreatment assembly includes two crushing rollers disposed near the center of the inner cavity of the hopper, with the crushing rollers arranged left and right. A transmission rod is fixedly and continuously installed through the center of each crushing roller. Movable openings are respectively provided on the front and rear sides of the hopper near the center, and two movable blocks are respectively disposed on the front and rear sides of the hopper near the center, arranged left and right. The front ends of the transmission rods pass through adjacent movable openings and are movably mounted on adjacent movable blocks. The rear ends of the transmission rods extend sequentially and continuously to the outside of adjacent movable blocks, and are respectively fixedly mounted with driving bevel gears. Near the bottom of the right movable block... A threaded rod A is threaded through and installed, and a threaded rod B is threaded through and installed on the left movable block near the left side. A rotating rod is fixedly installed between threaded rod A and the adjacent threaded rod B. Two side plates are fixedly installed on the front and rear sides of the hopper near the middle, and the side plates are arranged left and right. The right end of threaded rod A is movably installed on the adjacent side plate, and the left end of threaded rod B extends movably through and to the outside of the adjacent side plate. A support plate is fixedly installed on the left side of the hopper near the front side. A servo motor is fixedly installed on the front side of the support plate, and the output end of the servo motor is fixedly connected to the left end of the front threaded rod B.

[0010] Preferably, a limiting telescopic rod is fixedly installed on the outer side of the movable block near the top, and the outer ends of the limiting telescopic rods are fixedly installed on adjacent side plates.

[0011] Preferably, the output ends of the threaded rod B are respectively fixedly sleeved with synchronous pulleys, and synchronous belts are sleeved on the outer sides of the synchronous pulleys. A rectangular opening for the rotation of the synchronous belt is provided on the right side of the support plate.

[0012] Preferably, the driving bevel gears are respectively meshed with driven bevel gears on opposite sides, and movable rods are respectively fixedly installed through the middle of the driven bevel gears. L-shaped plates are respectively movably installed on opposite ends of the movable rods. The opposite sides of the L-shaped plates are respectively fixedly installed on adjacent movable blocks. A square rod and a square tube are respectively fixedly installed on opposite ends of the movable rods, and the inner end of the square rod extends into the inner cavity of the square tube.

[0013] Preferably, a worm gear is fixedly sleeved on the outer side of the transmission rod on the left near the rear end, and a worm is meshed on the right side of the worm gear. A drive motor is provided at the upper end of the worm, and the output end of the drive motor is fixedly connected to the upper end of the worm. A support plate is fixedly installed on the front side of the drive motor, and the bottom of the support plate is fixedly installed on the adjacent movable block.

[0014] An injection molded component comprising a quick-detachable hopper as described in any of the preceding claims.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the cooperation of components such as the snap-fit ​​rod, inverted trapezoidal block, vertical plate, telescopic spring, upright trapezoidal block, connecting rod, pushing block, and hydraulic push rod, the operation of the hydraulic push rod can drive the inverted trapezoidal blocks on all four sides to move outward synchronously. At this time, the adjacent snap-fit ​​rod can be moved away from the adjacent snap-fit ​​plate, thereby realizing the rapid disassembly of the hopper. The telescopic spring facilitates the restoration of the inverted trapezoidal block, solving the problem of low operating efficiency caused by fixing it to the injection molding machine with several mounting bolts.

[0017] 2. Through the cooperation of components such as crushing rollers, transmission rods, worm gears, worm shafts, drive motors, bearing plates, movable blocks, limit telescopic rods, threaded rods A and B, synchronous belts, side plates, support plates, servo motors, driving bevel gears, driven bevel gears, movable rods, L-shaped plates, square rods, and square tubes, the granular raw materials added to the hopper can be crushed and pre-treated, which is beneficial for better injection molding of the subsequent injection molded parts. In addition, the spacing between the crushing rollers can be adjusted as needed to meet the pre-treatment requirements of different particle sizes, resulting in excellent performance. Attached Figure Description

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a rear perspective view of the present invention;

[0020] Figure 3 This is a partial cross-sectional perspective view of the present invention.

[0021] Figure 4 This is a partial bottom-view perspective view of the feeding hopper of this utility model;

[0022] Figure 5 This is a partial three-dimensional view of the trapezoidal block of this utility model;

[0023] Figure 6 This is a partial three-dimensional view of the crushing shaft of this utility model;

[0024] Figure 7 This is a partial three-dimensional view of the transmission rod of this utility model;

[0025] Figure 8 This is a partial cross-sectional perspective view of the square tube of this utility model;

[0026] Figure 9 For the present utility model Figure 8 Enlarged view of point A in the middle.

[0027] In the diagram: 1. Injection molded part body; 2. Feeding pipe; 3. Discharge hopper; 4. Sealing plate; 5. L-shaped snap-fit ​​plate; 6. Snap-fit ​​assembly; 61. Snap-fit ​​rod; 62. Inverted trapezoidal block; 621. Vertical plate; 622. Telescopic spring; 63. Regular trapezoidal block; 64. Connecting rod; 65. Pushing block; 66. Hydraulic push rod; 7. Pre-treatment assembly; 71. Crushing roller; 72. Transmission rod; 721. Worm gear; 722. Worm; 723. Drive motor; 724. Bearing plate; 73. Movable block; 731. Limiting telescopic rod; 74. Threaded rod A; 75. Threaded rod B; 751. Synchronous belt; 76. Side plate; 77. Support plate; 78. Servo motor; 79. Driving bevel gear; 791. Driven bevel gear; 792. Movable rod; 793. L-shaped plate; 794. Square rod; 795. Square tube. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] Please see Figure 1-9 A quick-disassembly hopper includes an injection molded part body 1 and a feeding pipe 2 fixedly installed through the top middle of the injection molded part body 1. A discharge hopper 3 is slidably installed above the inner cavity of the feeding pipe 2, and a sealing plate 4 is fixedly sleeved on the outer side of the discharge hopper 3 near the lower end. The bottom of the sealing plate 4 is fitted with the upper end of the feeding pipe 2. L-shaped snap-fit ​​plates 5 are fixedly installed on the four sides of the discharge hopper 3 near the lower end, and snap-fit ​​components 6 are installed on the outer side of the L-shaped snap-fit ​​plates 5. A pre-treatment component 7 is installed near the middle of the inner cavity of the discharge hopper 3. The discharge hopper 3 can be disassembled and assembled through the snap-fit ​​component 6, and the pre-treatment component 7 can perform crushing and pre-treatment operations on the added particulate raw materials.

[0031] The snap-fit ​​assembly 6 includes several snap-fit ​​rods 61 respectively disposed on the outer side of the L-shaped snap-fit ​​plate 5. The inner ends of the snap-fit ​​rods 61 slide through and extend to the outer side of the adjacent L-shaped snap-fit ​​plates 5. The outer ends of the snap-fit ​​rods 61 are respectively fixedly installed with inverted trapezoidal blocks 62. The bottom of the inverted trapezoidal blocks 62 respectively engages with regular trapezoidal blocks 63. Connecting rods 64 are respectively fixedly installed on both sides of the regular trapezoidal blocks 63. The outer ends of the adjacent connecting rods 64 are respectively fixedly installed with pushing blocks 65. The bottom of the left and right pushing blocks 65 are respectively provided with hydraulic push rods 66. The power ends of the hydraulic push rods 66 are respectively fixedly installed on the adjacent pushing blocks 65. The hydraulic push rods 66 are arranged diagonally. The lower ends of the hydraulic push rods 66 are respectively fixedly installed on the injection molded part body 1, realizing quick assembly and disassembly of the feeding hopper 3 and convenient operation.

[0032] Vertical plates 621 are respectively provided on the outer side of the inverted trapezoidal block 62, and the bottom of the vertical plates 621 are respectively fixedly installed on the injection molded body 1. The inverted trapezoidal block 62 and the adjacent vertical plates 621 are elastically connected by extension springs 622, which facilitates the movement and restoration of the inverted trapezoidal block 62.

[0033] In this embodiment: During use, granular raw materials can be added into the injection molded part body 1 through the feeding hopper 3 to achieve injection molding. The synchronous operation of the diagonally opposite hydraulic push rods 66 can drive the adjacent push blocks 65 to move upward. The upward movement of the push blocks 65 will drive the four trapezoidal blocks 63 on the four sides to move upward synchronously through the connecting rods 64. When the trapezoidal blocks 63 move upward, they will squeeze the adjacent inverted trapezoidal blocks 62, causing them to move outward and squeeze the adjacent telescopic springs 622. When the inverted trapezoidal blocks 62 move outward, they will drive the adjacent snap-fit ​​rods 61 to move outward, thereby moving away from the outer side of the adjacent L-shaped snap-fit ​​plate 5. At this time, the snap-fit ​​fixation of the L-shaped snap-fit ​​plate 5 can be released. Then, moving upward can disassemble the feeding hopper 3. Conversely, the snap-fit ​​fixation of the feeding hopper 3 can be achieved.

[0034] Example 2

[0035] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 5The pretreatment component 7 includes two crushing rollers 71 located near the center of the inner cavity of the hopper 3, with the crushing rollers 71 arranged left and right. A transmission rod 72 is fixedly installed through the middle of each crushing roller 71. Movable openings are respectively provided on the front and rear sides of the hopper 3 near the center, and two movable blocks 73 are respectively provided on the front and rear sides of the hopper 3 near the center. The movable blocks 73 are arranged left and right. The front ends of the transmission rods 72 pass through adjacent movable openings and are movably installed on adjacent movable blocks 73. The rear ends of the transmission rods 72 extend sequentially to the outside of adjacent movable blocks 73 and are fixedly installed with driving bevel gears 79. A threaded rod A74 is threadedly installed near the bottom of the right movable block 73, and a threaded rod A74 is threadedly installed near the left side of the left movable block 73. The hopper 3 has a threaded rod B75, and a rotating rod is fixedly installed between the threaded rod A74 and the adjacent threaded rod B75. Two side plates 76 are fixedly installed on the front and rear sides near the middle, and the side plates 76 are arranged left and right. The right end of the threaded rod A74 is movably installed on the adjacent side plate 76, and the left end of the threaded rod B75 extends through to the outside of the adjacent side plate 76. A support plate 77 is fixedly installed on the left side of the hopper 3 near the front. A servo motor 78 is fixedly installed on the front side of the support plate 77, and the output end of the servo motor 78 is fixedly connected to the left end of the front threaded rod B75. This can drive the crushing rollers 71 on both sides to rotate synchronously, and can also adjust the distance between the crushing rollers 71 on both sides, which is conducive to meeting the pretreatment requirements of different particle sizes and has a good effect.

[0036] Limiting telescopic rods 731 are fixedly installed on the outer side of the movable block 73 near the top, and the outer ends of the limiting telescopic rods 731 are fixedly installed on the adjacent side plates 76, which serve to guide and limit the movement of the movable block 73.

[0037] The output ends of the threaded rod B75 are respectively fixedly sleeved with synchronous pulleys, and synchronous belts 751 are sleeved on the outer side of the synchronous pulleys. A rectangular opening for the rotation of synchronous belt 751 is opened on the right side of the support plate 77, which can drive the threaded rods B75 on the front and rear sides to rotate synchronously.

[0038] The threaded rods A74 and B75 involved in the patent meet the requirement of synchronous rotation under the transmission of the synchronous belt 751. Furthermore, the synchronous belt 751, threaded rods A74 and B75 are mature existing technologies and do not have problems such as disengagement or inability to rotate synchronously.

[0039] The driving bevel gear 79 is meshed with a driven bevel gear 791 on the opposite side. A movable rod 792 is fixedly installed through the middle of the driven bevel gear 791. An L-shaped plate 793 is movably installed on the opposite end of the movable rod 792. The opposite side of the L-shaped plate 793 is fixedly installed on the adjacent movable block 73. A square rod 794 and a square tube 795 are fixedly installed on the opposite end of the movable rod 792. The inner end of the square rod 794 extends into the inner cavity of the square tube 795, which facilitates the synchronous rotation of the crushing rollers 71 on both sides.

[0040] A worm gear 721 is fixedly sleeved on the outer side of the left transmission rod 72 near the rear end, and a worm 722 is meshed on the right side of the worm gear 721. A drive motor 723 is provided at the upper end of the worm 722. The output end of the drive motor 723 is fixedly connected to the upper end of the worm 722. A support plate 724 is fixedly installed on the front side of the drive motor 723. The bottom of the support plate 724 is fixedly installed on the adjacent movable block 73, which facilitates the unfolding of the drive operation.

[0041] An injection molding component comprising a quick-detachable hopper according to any of the above.

[0042] In this embodiment: After the granular raw material is added, the drive motor 723 will start. When the drive motor 723 runs, it will drive the worm gear 722 to rotate. When the worm gear 722 rotates, it will drive the left transmission rod 72 to rotate through the worm wheel 721. When the left transmission rod 72 rotates, it will drive the adjacent active bevel gear 79 to rotate. When the active bevel gear 79 rotates, it will drive the adjacent movable rod 792 to rotate through the driven bevel gear 791. When the movable rod 792 rotates, it will drive the right movable rod 792 to rotate through the square rod 794 and the square tube 795. At this time, the right transmission rod 72 will rotate through the right driven bevel gear 791 and the active bevel gear 79. When the transmission rods 72 on both sides rotate, they will drive the adjacent crushing roller 71 to rotate, thereby realizing the crushing of the added granules. In addition to processing, the size of the crushed particles can also be adjusted. The operation of the servo motor 78 drives the front threaded rod B75 to rotate, and then the synchronous belt 751 drives the rear threaded rod B75 to rotate. When the threaded rod B75 rotates, it drives the adjacent threaded rod A74 to rotate. When the threaded rods A74 and B75 rotate, they drive the adjacent movable block 73 to move relative to each other. When the movable block 73 moves relative to each other, it drives the square rod 794 and the square tube 795 to slide relative to each other without affecting their rotation. At the same time, it also drives the crushing rollers 71 on both sides to move relative to each other through the transmission rod 72, so as to adjust the spacing. Conversely, it drives the crushing rollers 71 on both sides to move in the opposite direction, which is conducive to meeting the pretreatment requirements of different particle sizes. After the adjustment is completed, the servo motor 78 can be stopped.

[0043] Working principle: During use, granular raw materials can be added into the injection molded part body 1 through the hopper 3 to achieve injection molding. The synchronous operation of the diagonally positioned hydraulic push rods 66 can drive the adjacent push blocks 65 to move upward. The upward movement of the push blocks 65 will drive the four trapezoidal blocks 63 on the four sides to move upward synchronously through the connecting rods 64. When the trapezoidal blocks 63 move upward, they will squeeze the adjacent inverted trapezoidal blocks 62, causing them to move outward and squeeze the adjacent telescopic springs 622. When the inverted trapezoidal blocks 62 move outward, they will drive the adjacent locking rods 61 to move outward, thus moving away from the adjacent... The outer side of the L-shaped locking plate 5 can be removed to release the locking mechanism. Moving it upwards allows for the disassembly of the hopper 3, and vice versa. Furthermore, adding granular raw materials activates the drive motor 723. The drive motor 723 rotates the worm gear 722, which in turn rotates the left transmission rod 72 via the worm wheel 721. The rotation of the left transmission rod 72 then rotates the adjacent active bevel gear 79, which in turn rotates the adjacent driven bevel gear 79 via the driven bevel gear 791. The movable rod 792 rotates, which in turn drives the right movable rod 792 to rotate via the square rod 794 and square tube 795. This, in turn, drives the right transmission rod 72 to rotate via the driven bevel gear 791 and the driving bevel gear 79 on the right side. The rotation of the transmission rods 72 on both sides drives the adjacent crushing rollers 71 to rotate, thus achieving the crushing of the added particles. Furthermore, the crushing size can be adjusted. The servo motor 78 drives the front threaded rod B75 to rotate, which in turn drives the rear threaded rod under the transmission of the synchronous belt 751. When rod B75 rotates, it drives the adjacent threaded rod A74 to rotate. When threaded rod A74 and threaded rod B75 rotate, they drive the adjacent movable block 73 to move relative to each other. When the movable block 73 moves relative to each other, it drives the square rod 794 and square tube 795 to slide relative to each other without affecting their rotation. At the same time, it also drives the crushing rollers 71 on both sides to move relative to each other through the transmission rod 72, so as to adjust the spacing. Conversely, it can drive the crushing rollers 71 on both sides to move in the opposite direction, which is beneficial to meet the pretreatment requirements of different particle sizes. After the adjustment is completed, the servo motor 78 can be stopped.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-detachable hopper, comprising an injection molded part body (1) and a feeding pipe (2) fixedly installed through the middle of the top of the injection molded part body (1), characterized in that: A feeding hopper (3) is slidably installed above the inner cavity of the feeding pipe (2), and a sealing plate (4) is fixedly sleeved on the outer side of the feeding hopper (3) near the lower end. The bottom of the sealing plate (4) is fitted to the upper end of the feeding pipe (2). L-shaped snap-fit ​​plates (5) are fixedly installed on the four sides of the feeding hopper (3) near the lower end. A snap-fit ​​assembly (6) is installed on the outer side of the L-shaped snap-fit ​​plates (5), and a pretreatment assembly (7) is installed near the middle of the inner cavity of the feeding hopper (3). The snap-fit ​​assembly (6) includes several snap-fit ​​rods (61) respectively disposed on the outside of the L-shaped snap-fit ​​plate (5). The inner ends of the snap-fit ​​rods (61) slide through and extend to the outside of the adjacent L-shaped snap-fit ​​plate (5). The outer ends of the snap-fit ​​rods (61) are respectively fixedly installed with inverted trapezoidal blocks (62). The bottom of the inverted trapezoidal blocks (62) is respectively engaged with a regular trapezoidal block (63). The two sides of the regular trapezoidal blocks (63) are respectively fixedly installed with connecting rods (64). The outer ends of the adjacent connecting rods (64) are respectively fixedly installed with push blocks (65). The bottom of the left and right push blocks (65) are respectively provided with hydraulic push rods (66). The power ends of the hydraulic push rods (66) are respectively fixedly installed on the adjacent push blocks (65). The hydraulic push rods (66) are arranged diagonally. The lower ends of the hydraulic push rods (66) are respectively fixedly installed on the injection molded part body (1).

2. The quick-detachable hopper according to claim 1, characterized in that: The inverted trapezoidal block (62) is provided with vertical plates (621) on its outer side, and the bottom of the vertical plates (621) is fixedly installed on the injection molded body (1). The inverted trapezoidal block (62) and the adjacent vertical plates (621) are elastically connected by extension springs (622).

3. The quick-detachable hopper according to claim 1, characterized in that: The pretreatment component (7) includes two crushing rollers (71) located near the center of the inner cavity of the hopper (3), and the crushing rollers (71) are arranged left and right. A transmission rod (72) is fixedly installed through the middle of the crushing rollers (71). Movable openings are opened near the center of the front and rear sides of the hopper (3), and two movable blocks (73) are arranged near the center of the front and rear sides of the hopper (3). The movable blocks (73) are arranged left and right. The front ends of the transmission rods (72) pass through the adjacent movable openings and are movably installed on the adjacent movable blocks (73). The rear ends of the transmission rods (72) extend through the adjacent movable blocks (73) and are fixedly installed on the outside of the adjacent movable blocks (73). A drive bevel gear (79) is threaded through the right movable block (73) near the bottom. A threaded rod A (74) is installed, and a threaded rod B (75) is threaded through the left side of the movable block (73) near the left side. A rotating rod is fixedly installed between the threaded rod A (74) and the adjacent threaded rod B (75). Two side plates (76) are fixedly installed on the front and rear sides of the hopper (3) near the middle. The side plates (76) are set left and right. The right end of the threaded rod A (74) is movably installed on the adjacent side plate (76). The left end of the threaded rod B (75) extends movably through to the outside of the adjacent side plate (76). A support plate (77) is fixedly installed on the left side of the hopper (3) near the front side. A servo motor (78) is fixedly installed on the front side of the support plate (77). The output end of the servo motor (78) is fixedly connected to the left end of the front threaded rod B (75).

4. The quick-detachable hopper according to claim 3, characterized in that: Limiting telescopic rods (731) are fixedly installed on the outer side of the movable block (73) near the top, and the outer ends of the limiting telescopic rods (731) are fixedly installed on the adjacent side plates (76).

5. A quick-detachable hopper according to claim 3, characterized in that: The output ends of the threaded rod B (75) are respectively fixedly sleeved with synchronous pulleys, and synchronous belts (751) are sleeved on the outer side of the synchronous pulleys. A rectangular opening for the rotation of the synchronous belt (751) is provided on the right side of the support plate (77).

6. The quick-detachable hopper according to claim 3, characterized in that: The driving bevel gear (79) is meshed with a driven bevel gear (791) on the opposite side. A movable rod (792) is fixedly installed through the middle of the driven bevel gear (791). An L-shaped plate (793) is movably installed on the opposite end of the movable rod (792). The opposite side of the L-shaped plate (793) is fixedly installed on the adjacent movable block (73). A square rod (794) and a square tube (795) are fixedly installed on the opposite end of the movable rod (792). The inner end of the square rod (794) extends into the inner cavity of the square tube (795).

7. A quick-detachable hopper according to claim 3, characterized in that: A worm gear (721) is fixedly sleeved on the outer side of the transmission rod (72) near the rear end, and a worm (722) is meshed on the right side of the worm gear (721). A drive motor (723) is provided at the upper end of the worm (722), and the output end of the drive motor (723) is fixedly connected to the upper end of the worm (722). A bearing plate (724) is fixedly installed on the front side of the drive motor (723), and the bottom of the bearing plate (724) is fixedly installed on the adjacent movable block (73).

8. An injection-molded component, characterized in that, Includes a quick-detachable hopper as described in any one of claims 1-7.

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