Plastic particle discharging mechanism
By combining the metering and material control components, accurate weighing and rapid discharge of plastic granules are achieved, solving the problems of low weighing accuracy and slow discharge speed of existing equipment, improving work efficiency and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-03
AI Technical Summary
Existing plastic granule filling equipment has low weighing accuracy, slow discharge speed, and cumbersome operation procedures, resulting in low work efficiency and high labor costs.
The discharge mechanism, which includes metering and material control components, achieves accurate weighing and rapid discharge of plastic granules through the combined use of coarse, fine, and micro adjustment discharge orifices. The discharge speed and flow rate are controlled by a motor-driven valve.
It improves weighing accuracy, simplifies operation procedures, increases work efficiency, and reduces labor costs.
Smart Images
Figure CN223962322U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a plastic pellet discharging mechanism. Background Technology
[0002] Plastic granules are the basic material for the production of plastic products. They are usually made from polymer resin through processes such as melting, extrusion, and pelletizing. They are lightweight, durable, and highly malleable, and therefore play an important role in many industries. In order to protect the finished plastic granules, they need to be packed into packaging bags according to the specified weight, so as to facilitate transportation, management, and loading and unloading.
[0003] While existing plastic granule filling equipment also has a weighing function, its weighing accuracy is low. To accurately reach the specified weight, it is necessary to manually add or remove plastic granules. During this process, the weighing scale must be frequently monitored, and the operation must be repeated multiple times. This results in a slow discharge speed and a cumbersome operating procedure that is both time-consuming and labor-intensive, leading to low work efficiency and high labor costs. Further improvements are needed. Utility Model Content
[0004] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide a plastic pellet discharging mechanism that effectively improves weighing accuracy and speeds up discharge, and also effectively simplifies operation steps to achieve the effect of saving time and effort, thereby improving work efficiency and reducing labor costs.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a plastic granule discharging mechanism, including a movable frame, a frame fixed to the top of the movable frame, and two metering components arranged symmetrically on the left and right sides within the frame. Each metering component includes a metering hopper and two weighing units symmetrically arranged on the front and rear sides of the metering hopper. Each weighing unit includes several weighing devices arranged horizontally from left to right. Each weighing device is fixed to the frame, and the sensing end of each weighing device is fixed to the corresponding outer wall of the metering hopper. The characteristic feature is that:
[0006] Above each of the two metering components, there is a material control component. The material control component includes a diversion hopper fixed in the frame. The bottom opening of the diversion hopper has an arc-shaped discharge surface at its edge. The material control component also includes a material distribution beam fixed between the inner walls of the front and rear sides of the bottom opening of the diversion hopper. The material distribution beam divides the bottom opening of the diversion hopper into a coarse adjustment discharge hole and a fine adjustment discharge hole. The material control component also includes a material control hopper fixed inside the diversion hopper and located above the fine adjustment discharge hole. The bottom opening of the material control hopper is connected to the fine adjustment discharge hole.
[0007] The material control assembly further includes a material control valve, which includes an arc-shaped valve plate located below the arc-shaped discharge surface, two fan-shaped swing plates symmetrically distributed on the front and rear sides of the diversion hopper, a first drive shaft rotatably connected to the left or right outer wall of the diversion hopper, a first geared motor fixed to the left or right outer wall of the diversion hopper and located on the same side as the first drive shaft, two first swing arms symmetrically arranged front and rear and fixed to the two ends of the first drive shaft, and two first connecting rods rotatably connected to the ends of the two first swing arms. The corner of each fan-shaped swing plate is rotatably connected to the corresponding side outer wall of the diversion hopper, and the arc edge of each fan-shaped swing plate is fixed to the arc-shaped valve plate. The rotation shaft of the first geared motor is concentrically fixed to the first drive shaft, and the ends of the two first connecting rods are rotatably connected to the two fan-shaped swing plates.
[0008] The arc-shaped valve plate has a notch and a material leakage groove on one side edge below the fine adjustment outlet hole, and the arc-shaped valve plate also has several material leakage holes below the fine adjustment outlet hole.
[0009] Preferably, an oblique discharge hole is formed at the bottom left or right corner of the metering hopper. The metering assembly also includes a discharge valve located on the same side as the oblique discharge hole. The discharge valve includes a flat valve plate inclined below the oblique discharge hole, a second drive shaft horizontally and rotatably connected to the outer wall of the metering hopper, a second reduction motor fixed to the outer wall of the metering hopper, and two lifting rods vertically and movably connected to the outer wall of the metering hopper, each having the function of vertical movement up and down and distributed front and back respectively. The rotation shaft of the second reduction motor is concentrically fixed to the second drive shaft, and the lower ends of the two lifting rods are rotatably connected to the higher side edge of the flat valve plate.
[0010] Preferably, the front and rear edges of the planar valve plate are each formed with a symmetrically arranged connecting plate, and the two connecting plates are respectively located on the front and rear sides of the metering hopper. The discharge valve also includes two first air struts symmetrically arranged on the front and rear sides of the metering hopper. The fixed ends of the two first air struts are rotatably connected to the two ends of the second drive shaft, and the telescopic ends of the two first air struts are rotatably connected to the two connecting plates.
[0011] Preferably, the top of the mobile frame is further provided with a material guiding assembly located below the two metering components. The material guiding assembly includes a receiving hopper fixed to the top of the mobile frame and a clamping unit located at the bottom opening of the receiving hopper.
[0012] Preferably, the clamping unit includes a transfer bucket, a third reduction motor, a third drive shaft, and a second swing arm. The top opening of the transfer bucket is fixed to the bottom opening of the receiving bucket. The third drive shaft is laterally and rotatably connected to the front or rear outer wall of the transfer bucket. The third reduction motor is fixed to the outer wall of the transfer bucket and is located on the same side as the third drive shaft. The rotation shaft of the third reduction motor is concentrically fixed to the third drive shaft. The second swing arm includes two arms, which are symmetrically fixed at both ends of the third drive shaft.
[0013] Preferably, the clamping unit further includes a swing frame, a second connecting rod, and a second gas strut. Two swing frames are symmetrically arranged on the front and rear sides of the transfer bucket, and the upper sides of both transfer buckets are rotatably connected to the transfer bucket. Two second connecting rods are rotatably connected to both ends of a third drive shaft, and the ends of the two second connecting rods are rotatably connected to the left and right sides of one of the swing frames. Two second gas struts are rotatably connected, with their fixed ends rotatably connected to the ends of two second swing arms, and their telescopic ends rotatably connected to the left and right sides of the other swing frame.
[0014] Preferably, the bottom opening of the transfer bucket forms a discharge cylinder facing downwards. The cross-sectional shape of the discharge cylinder is elliptical. The clamping unit also includes two arc-shaped clamping bars that are respectively fixed to the lower side of the two swing frames and symmetrically arranged on the front and rear sides of the discharge cylinder. The curvature of the two arc-shaped clamping bars is respectively matched with the curvature of the outer wall on the front and rear sides of the discharge cylinder.
[0015] Preferably, the outer wall of the discharge cylinder is further provided with a plurality of elliptical convex rings arranged sequentially from top to bottom.
[0016] Preferably, two symmetrically arranged arc-shaped support strips are fixed at the end opening of the discharge cylinder.
[0017] Compared with the prior art, the advantages of this utility model are as follows: This utility model uses two material control components to make the plastic particles fed into the two metering hoppers first fall into the two diversion hoppers and achieve a large flow rate drop through the coarse adjustment discharge hole and the fine adjustment discharge hole. Then, the coarse adjustment discharge hole is gradually closed and the fine adjustment discharge hole is used to achieve a medium flow rate drop. Finally, the notched discharge trough and two discharge holes are used in sequence to achieve a small flow rate drop and a micro flow rate drop, respectively. This effectively improves the weighing accuracy and can quickly reach the predetermined weight of the plastic particles without manual intervention, thereby speeding up the discharge speed. This effectively simplifies the operation steps to achieve the effect of saving time and labor, thus improving work efficiency and reducing labor costs. Attached Figure Description
[0018] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings:
[0019] Figure 1 This is a structural diagram of the left front side of this utility model;
[0020] Figure 2 This is a top view of the front right side of the material control component of this utility model;
[0021] Figure 3 This is a top view of the left front side of the diversion hopper of this utility model;
[0022] Figure 4 This is a structural diagram of the left front side of the metering component of this utility model;
[0023] Figure 5 This is a top view of the left front side of the metering hopper of this utility model;
[0024] Figure 6 This is an exploded view of the left rear side of the material guiding assembly of this utility model. Detailed Implementation
[0025] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0026] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.
[0027] like Figures 1-6As shown, a plastic pellet discharging mechanism includes a movable frame 1, a frame 2 fixed to the top of the movable frame 1, and two metering components 4 arranged symmetrically in the frame 2. The metering components 4 include a metering hopper 42 and two weighing units respectively symmetrically arranged on the front and rear sides of the metering hopper 42. The weighing unit includes a plurality of weighing devices 41 arranged horizontally from left to right. Each weighing device 41 is fixed on the frame 2, and the sensing end of each weighing device 41 is fixed on the corresponding side outer wall of the metering hopper 42.
[0028] Above each of the two metering components 4, there is a material control component 3. The material control component 3 includes a diversion hopper 31 fixed in the frame 2. The bottom opening of the diversion hopper 31 has an arc-shaped discharge surface 311. The material control component 3 also includes a material distribution beam 32 fixed between the inner walls of the front and rear sides of the bottom opening of the diversion hopper 31. The material distribution beam 32 divides the bottom opening of the diversion hopper 31 into a coarse adjustment discharge hole 312 and a fine adjustment discharge hole 313. The material control component 3 also includes a control hopper 33 fixed inside the diversion hopper 31 and located above the fine adjustment discharge hole 313. The bottom opening of the control hopper 33 is connected to the fine adjustment discharge hole 313.
[0029] The material control assembly 3 also includes a material control valve, which includes an arc-shaped valve plate 34 located below the arc-shaped discharge surface 311, two fan-shaped swing plates 35 respectively located on the front and rear sides of the diversion hopper 31 and symmetrically distributed, a first drive shaft 37 horizontally and rotatably connected to the left or right outer wall of the diversion hopper 31, a first reduction motor 36 fixed to the left or right outer wall of the diversion hopper 31 and located on the same side as the first drive shaft 37, two first swing arms 38 respectively fixed to both ends of the first drive shaft 37 and symmetrically arranged front and rear, and two first connecting rods 39 rotatably connected to the ends of the two first swing arms 38. The corner of each fan-shaped swing plate 35 is rotatably connected to the corresponding side outer wall of the diversion hopper 31, and the arc edge of each fan-shaped swing plate 35 is fixed to the arc-shaped valve plate 34. The rotation shaft of the first reduction motor 36 is concentrically fixed to the first drive shaft 37, and the ends of the two first connecting rods 39 are rotatably connected to the two fan-shaped swing plates 35 respectively.
[0030] A notched material leakage groove 341 is provided on one side edge of the arc-shaped valve plate 34 below the fine adjustment discharge hole 313, and several material leakage holes 342 are also provided in the arc-shaped valve plate 34 below the fine adjustment discharge hole 313.
[0031] An inclined discharge hole 421 is formed at the bottom left or right corner of the metering hopper 42. The metering component 4 also includes a discharge valve located on the same side as the inclined discharge hole 421. The discharge valve includes a flat valve plate 43 inclined below the inclined discharge hole 421, a second drive shaft 45 horizontally and rotatably connected to the outer wall of the metering hopper 42, a second reduction motor 44 fixed to the outer wall of the metering hopper 42, and two lifting rods 46 vertically and movably connected to the outer wall of the metering hopper 42, each having the function of vertical movement up and down and distributed in front and behind respectively. The rotation shaft of the second reduction motor 44 is concentrically fixed on the second drive shaft 45. The lower ends of the two lifting rods 46 are rotatably connected to the higher side edge of the flat valve plate 43.
[0032] The front and rear edges of the flat valve plate 43 each have a symmetrically arranged connecting plate 431. The two connecting plates 431 are located on the front and rear sides of the metering hopper 42, respectively. The discharge valve also includes two first air struts 47 symmetrically arranged on the front and rear sides of the metering hopper 42. The fixed ends of the two first air struts 47 are rotatably connected to the two ends of the second drive shaft 45, and the telescopic ends of the two first air struts 47 are rotatably connected to the two connecting plates 431.
[0033] The top of the mobile frame 1 is also provided with a guide assembly 5 located below the two metering components 4. The guide assembly 5 includes a receiving hopper 51 fixed to the top of the mobile frame 1 and a clamping unit located at the bottom opening of the receiving hopper 51. The clamping unit includes a transfer hopper 52, a third reduction motor 53, a third drive shaft 55 and a second swing arm 56. The top opening of the transfer hopper 52 is fixed to the bottom opening of the receiving hopper 51. The third drive shaft 55 is laterally and rotatably connected to the front or rear outer wall of the transfer hopper 52. The third reduction motor 53 is fixed to the outer wall of the transfer hopper 52 and is located on the same side as the third drive shaft 55. The rotation shaft of the third reduction motor 53 is concentrically fixed to the third drive shaft 55. The second swing arm 56 includes two arms, which are symmetrically fixed at both ends of the third drive shaft 55.
[0034] The clamping unit also includes a swing frame 54, a second connecting rod 57, and a second gas strut 58. There are two swing frames 54, which are symmetrically arranged on the front and rear sides of the transfer bucket 52. The upper sides of the two transfer buckets 52 are rotatably connected to the transfer bucket 52. There are two second connecting rods 57, which are rotatably connected to the two ends of the third drive shaft 55. The ends of the two second connecting rods 57 are rotatably connected to the left and right sides of one of the swing frames 54. There are two second gas struts 58. The fixed ends of the two second gas struts 58 are rotatably connected to the ends of the two second swing arms 56. The telescopic ends of the two second gas struts 58 are rotatably connected to the left and right sides of the other swing frame 54.
[0035] The bottom opening of the transfer bucket 52 forms a discharge cylinder 521. The cross-sectional shape of the discharge cylinder 521 is elliptical. The clamping unit also includes two arc-shaped clamping bars 59, which are respectively fixed to the lower side of the two swing frames 54 and symmetrically arranged on the front and rear sides of the discharge cylinder 521. The curvature of the two arc-shaped clamping bars 59 is matched with the curvature of the outer wall on the front and rear sides of the discharge cylinder 521.
[0036] The outer wall of the discharge cylinder 521 also has multiple elliptical protrusions 522 arranged sequentially from top to bottom.
[0037] Two symmetrically arranged arc-shaped support strips 510 are also fixed at the end opening of the discharge cylinder 521.
[0038] Working principle:
[0039] The granulated plastic granules are poured into the two diversion hoppers 31 through the top openings of the two material control components 3. The first reduction motor 36 in the material control valve of each material control component 3 is activated to rotate its rotating shaft, which in turn drives the two first swing arms 38 to rotate via the first drive shaft 37. This, in turn, drives the two fan-shaped swing plates 35 to swing via the two first connecting rods 39. This causes the arc-shaped valve plate 34 to rotate toward the coarse adjustment discharge hole 312, so that both the coarse adjustment discharge hole 312 and the fine adjustment discharge hole 313 are in the open state. This allows the plastic granules in the diversion hopper 31 to fall into the metering hopper 42 in the metering component 4 located below. During this process, each weighing device 41 will calculate the weight of the plastic granules in the metering hopper 42 in real time (existing technology).
[0040] When the plastic granules in the metering hopper 42 reach a certain weight, the rotating shaft of the first reduction motor 36 is reversed to drive the arc-shaped valve plate 34 to rotate towards the fine adjustment discharge hole 313, thereby gradually reducing the opening area of the coarse adjustment discharge hole 312 until it is completely closed. However, the plastic granules in the control hopper 33 can still fall through the fine adjustment discharge hole 313. As the arc-shaped valve plate 34 continues to rotate, the area of the fine adjustment discharge hole 313 also gradually decreases. The plastic granules in the control hopper 33 can only fall through the notched discharge groove 341 and the two discharge holes 342, so that the weight of the plastic granules in the metering hopper 42 can slowly increase. As the arc-shaped valve plate 34 continues to rotate, the plastic granules in the control hopper 33 can only fall through the two discharge holes 342. When the weight of the plastic granules in the metering hopper 42 reaches the predetermined value, the two discharge holes 342 also move out below the fine adjustment discharge hole 313, so that the specified weight of plastic granules can be output quickly and accurately.
[0041] Next, the second reduction motor 44 in each discharge valve rotates its rotating shaft, which in turn drives the two connecting plates 431 and the two first gas struts 47 to rotate via the second drive shaft 45. This causes the higher end of the flat valve plate 43 to swing upward, and the telescopic ends of the two first gas struts 47 push the lower end of the flat valve plate 43 downward via the two connecting plates 431. This gradually moves the flat valve plate 43 away from the inclined discharge hole 421, causing the plastic particles in the metering hopper 42 to fall into the receiving hopper 51 and transfer hopper 52 in the guiding assembly 5. During this process, both lifting rods 46 move upward.
[0042] The front and rear edges of the flat valve plate 43 are both symmetrically arranged with two connecting plates 431 located on the front and rear sides respectively. The discharge valve also includes two first air struts 47 symmetrically arranged on the front and rear sides of the metering hopper 42. The fixed ends of the two first air struts 47 are rotatably connected to the two ends of the second drive shaft 45 respectively, and the telescopic ends of the two first air struts 47 are rotatably connected to the two connecting plates 431 respectively.
[0043] Before this, a packaging bag needs to be taken and fitted with its opening facing upwards onto the outside of the discharge cylinder 521, positioned between the two arc-shaped clamping bars 59. Then, the third reduction motor 53 in the clamping unit is driven to rotate its rotating shaft, which in turn drives the two second swing arms 56 to rotate via the third drive shaft 55. This causes the two second connecting rods 57 and the two second gas struts 58 to rotate in opposite directions, thereby causing the lower sides of the two swing frames 54 to move closer to each other. As a result, the two arc-shaped clamping bars 59 clamp the opening of the packaging bag onto the outside of the discharge cylinder 521. After this, the plastic particles falling into the transfer hopper 52 will fall into the packaging bag to achieve automatic discharge.
[0044] After the material is discharged, the rotating shaft of the third reduction motor 53 is reversed, which in turn drives the two arc-shaped clamping bars 59 to separate and loosen the opening of the packaging bag. Finally, the packaging bag containing plastic granules is removed.
[0045] This invention utilizes two material control components 3 to first direct plastic granules fed into two metering hoppers 42 into two diversion hoppers 31. A large flow rate is achieved through the coarse adjustment discharge hole 312 and the fine adjustment discharge hole 313. Then, the coarse adjustment discharge hole 312 is gradually closed, and a medium flow rate is achieved through the fine adjustment discharge hole 313. Finally, a small flow rate and a micro flow rate are achieved sequentially through the notched discharge trough 341 and two discharge holes 342. This effectively improves weighing accuracy and allows the weight of the plastic granules to quickly reach the predetermined value without manual intervention, thus accelerating the discharge speed. This simplifies the operation, saving time and effort, thereby improving work efficiency and reducing labor costs.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A plastic pellet discharging mechanism, comprising a movable frame, a frame fixed to the top of the movable frame, and two metering components symmetrically distributed on the left and right sides within the frame. Each metering component includes a metering hopper and two weighing units symmetrically arranged on the front and rear sides of the metering hopper. Each weighing unit includes a plurality of weighing devices arranged horizontally from left to right, each weighing device being fixed to the frame, and the sensing end of each weighing device being fixed to the corresponding outer wall of the metering hopper. The mechanism is characterized in that: Above each of the two metering components, there is a material control component. The material control component includes a diversion hopper fixed in the frame. The bottom opening of the diversion hopper has an arc-shaped discharge surface at its edge. The material control component also includes a material distribution beam fixed between the inner walls of the front and rear sides of the bottom opening of the diversion hopper. The material distribution beam divides the bottom opening of the diversion hopper into a coarse adjustment discharge hole and a fine adjustment discharge hole. The material control component also includes a material control hopper fixed inside the diversion hopper and located above the fine adjustment discharge hole. The bottom opening of the material control hopper is connected to the fine adjustment discharge hole. The material control assembly further includes a material control valve, which includes an arc-shaped valve plate located below the arc-shaped discharge surface, two fan-shaped swing plates symmetrically distributed on the front and rear sides of the diversion hopper, a first drive shaft rotatably connected to the left or right outer wall of the diversion hopper, a first geared motor fixed to the left or right outer wall of the diversion hopper and located on the same side as the first drive shaft, two first swing arms symmetrically arranged front and rear and fixed to the two ends of the first drive shaft, and two first connecting rods rotatably connected to the ends of the two first swing arms. The corner of each fan-shaped swing plate is rotatably connected to the corresponding side outer wall of the diversion hopper, and the arc edge of each fan-shaped swing plate is fixed to the arc-shaped valve plate. The rotation shaft of the first geared motor is concentrically fixed to the first drive shaft, and the ends of the two first connecting rods are rotatably connected to the two fan-shaped swing plates. The arc-shaped valve plate has a notch and a material leakage groove on one side edge below the fine adjustment outlet hole, and the arc-shaped valve plate also has several material leakage holes below the fine adjustment outlet hole.
2. The plastic pellet discharge mechanism according to claim 1, characterized in that, An oblique discharge hole is formed at the bottom left or right corner of the metering hopper. The metering assembly also includes a discharge valve located on the same side as the oblique discharge hole. The discharge valve includes a flat valve plate inclined below the oblique discharge hole, a second drive shaft horizontally and rotatably connected to the outer wall of the metering hopper, a second reduction motor fixed to the outer wall of the metering hopper, and two lifting rods vertically and movably connected to the outer wall of the metering hopper, each having the function of vertical movement up and down and distributed in front and behind. The rotation shaft of the second reduction motor is concentrically fixed to the second drive shaft, and the lower ends of the two lifting rods are rotatably connected to the higher side edge of the flat valve plate.
3. The plastic pellet discharge mechanism according to claim 2, characterized in that, The front and rear edges of the planar valve plate each have a symmetrically arranged connecting plate. The two connecting plates are located on the front and rear sides of the metering hopper, respectively. The discharge valve also includes two first air struts symmetrically arranged on the front and rear sides of the metering hopper. The fixed ends of the two first air struts are rotatably connected to the two ends of the second drive shaft, and the telescopic ends of the two first air struts are rotatably connected to the two connecting plates.
4. The plastic pellet discharge mechanism according to claim 1, characterized in that, The top of the mobile frame is also provided with a material guiding assembly located below the two metering components. The material guiding assembly includes a receiving hopper fixed to the top of the mobile frame and a clamping unit located at the bottom opening of the receiving hopper.
5. A plastic pellet discharge mechanism according to claim 4, characterized in that, The clamping unit includes a transfer bucket, a third reduction motor, a third drive shaft, and a second swing arm. The top opening of the transfer bucket is fixed to the bottom opening of the receiving bucket. The third drive shaft is laterally and rotatably connected to the front or rear outer wall of the transfer bucket. The third reduction motor is fixed to the outer wall of the transfer bucket and is located on the same side as the third drive shaft. The rotation shaft of the third reduction motor is concentrically fixed to the third drive shaft. The second swing arm includes two arms, which are symmetrically fixed at both ends of the third drive shaft.
6. The plastic pellet discharge mechanism according to claim 5, characterized in that, The clamping unit further includes a swing frame, a second connecting rod, and a second gas strut. Two swing frames are symmetrically arranged on the front and rear sides of the transfer bucket, and the upper sides of both transfer buckets are rotatably connected to the transfer bucket. Two second connecting rods are rotatably connected to both ends of a third drive shaft, and the ends of the two second connecting rods are rotatably connected to the left and right sides of one of the swing frames. Two second gas struts are rotatably connected, with their fixed ends rotatably connected to the ends of two second swing arms, and their telescopic ends rotatably connected to the left and right sides of the other swing frame.
7. A plastic pellet discharge mechanism according to claim 6, characterized in that, The bottom opening of the transfer bucket forms a discharge cylinder with an elliptical cross-section. The clamping unit also includes two arc-shaped clamping bars that are fixed to the lower side of the two swing frames and symmetrically arranged on the front and rear sides of the discharge cylinder. The curvature of the two arc-shaped clamping bars matches the curvature of the outer walls on the front and rear sides of the discharge cylinder.
8. A plastic pellet discharge mechanism according to claim 7, characterized in that, The outer wall of the discharge cylinder also has multiple elliptical convex rings arranged sequentially from top to bottom.
9. A plastic pellet discharge mechanism according to claim 8, characterized in that, Two symmetrically arranged arc-shaped support strips are also fixed at the end opening of the discharge cylinder.