Improved pelletizer for producing plastic particles

Abstract

This invention belongs to the technical field of plastic pelletizing machines, and particularly relates to an improved plastic pelletizing machine, comprising a pelletizing machine body; a material cylinder is provided at the upper end of the pelletizing machine body; a lifting mechanism is provided on both sides opposite the cylinder opening inside the housing, and a horizontal telescopic mechanism is provided on each of the two lifting mechanisms, with a mounting seat at the telescopic end of each of the two horizontal telescopic mechanisms; a cylinder cover is detachably mounted on the two mounting seats, and a plurality of discharge holes are provided through the end face of the cylinder cover; a replacement port is provided above the cylinder cover on the top wall of the housing; the horizontal telescopic mechanism is used to drive the cylinder cover to move closer to or away from the cylinder opening, and the cylinder cover fits to close the cylinder opening when it is close to the cylinder opening; the lifting mechanism is used to drive the cylinder cover to move between the cylinder opening and the replacement port, and the cylinder cover extends at least partially out of the replacement port when it moves to the replacement port; the replacement port is used to replace the cylinder cover on the two mounting seats; by changing different cylinder covers, plastic pellets of different sizes can be processed, the replacement is simple, and the applicability is high.

Description

Technical Field

[0001] This invention belongs to the technical field of plastic pelletizers, and particularly relates to an improved pelletizer for plastic pellet production. Background Technology

[0002] Plastic granules, as an important industrial raw material, have a wide range of applications in many fields. Plastic granules are granular plastic raw materials produced by recycling and processing waste plastics. They are also known as plastic particles and are semi-finished products in the plastic molding and processing industry. Among them, the pelletizer used for plastic granule production is an indispensable and important piece of equipment in the plastic processing industry. It is mainly used to cut plastic raw materials or waste into uniform small particles to facilitate subsequent processing, modification or recycling.

[0003] For example, Chinese invention patent publication number CN220946167U discloses a pelletizer for producing PC plastic pellets. It involves pouring heated plastic raw material into the feed port 26, and using a hydraulic cylinder 3 to push a push plate 27 to squeeze the raw material. The raw material is squeezed out through the discharge hole 24 to form strips. A second drive motor 7 drives a cutter 16 to rotate and cut the strips of plastic to form plastic pellets. This fully automated production method improves production efficiency to a certain extent.

[0004] While the aforementioned pelletizer for PC plastic granule production improves production efficiency to some extent, its barrel 5 and discharge port 24 are integrally molded. To process plastic granules of different sizes, the entire barrel 5 needs to be replaced, which is not only difficult to operate but also costly, has low applicability, and cannot meet usage requirements. Furthermore, after the cutter 16 finishes pelletizing the plastic, some plastic adheres to the inner wall of the barrel, the pusher plate, and the discharge port. If not cleaned promptly, the solidified plastic will contain impurities, incompletely melted particles, or carbon deposits. These can easily mix into the product during subsequent processing, forming defects such as black spots and impurities, seriously affecting product quality. Summary of the Invention

[0005] The purpose of this invention is to provide an improved pelletizer for producing plastic pellets, which aims to solve one of the technical problems existing in the prior art.

[0006] To achieve the above objectives, this invention provides an improved pelletizer for producing plastic granules, comprising a pelletizer body; a material cylinder is provided at the upper end of the pelletizer body, and a feeding hopper communicating with the interior of the material cylinder is provided on the upper outer wall of the material cylinder; a cylinder is installed at one end of the material cylinder, and the telescopic end of the cylinder extends into the interior of the material cylinder and is fixedly connected to a pusher plate; the end of the material cylinder away from the cylinder has a cylinder opening; a housing is provided at one end of the pelletizer body, and the end of the material cylinder with the cylinder opening passes through the housing and extends into the interior of the housing; a drive motor is provided inside the housing, and a cutter is fixedly provided at the output end of the drive motor, with the cutter facing the cylinder opening;

[0007] The interior of the housing is equipped with a lifting mechanism on each of the opposite sides of the cylinder opening. Each of the two lifting mechanisms has a horizontal telescopic mechanism, and each telescopic end of the two horizontal telescopic mechanisms has a mounting seat. The two mounting seats are symmetrically arranged. A cylinder cover is detachably mounted on each mounting seat. Several discharge holes are formed through the end face of the cylinder cover. A replacement port is formed above the cylinder cover on the top wall of the housing. The horizontal telescopic mechanism drives the cylinder cover to move closer to or away from the cylinder opening, and the cylinder cover fits to close the cylinder opening when it is close to it. The lifting mechanism drives the cylinder cover to move between the cylinder opening and the replacement port. When the cylinder cover moves to the replacement port, it at least partially extends out of the replacement port. The replacement port is used to replace the cylinder cover on the two mounting seats.

[0008] Optionally, the upper side of the mounting base is provided with a U-shaped groove, and each of the opposite sides of the cylinder cover is provided with a mounting part, and the two mounting parts are respectively detachably inserted into the two U-shaped grooves.

[0009] Optionally, a vertical guide rod is provided in the U-shaped groove, and a guide hole is provided in the mounting part through the vertical groove. The guide hole is used to fit and connect to the outside of the vertical guide rod, so that the mounting part can be detachably inserted into the U-shaped groove along the vertical guide rod.

[0010] Optionally, the bottom of the mounting part is provided with an arc-shaped part, and the upper opening of the U-shaped groove is an open opening.

[0011] Optionally, the drive motor is mounted on a bracket, and the bracket is provided with multiple horizontal guide rods around its circumference. The horizontal guide rods slide through the side wall of the housing. The side wall of the housing is provided with a drive unit, which is connected to the drive motor to drive the cutter to move closer to or away from the cylinder cover.

[0012] Optionally, a fixed base is slidably connected to the upper end of the pelletizer body, and the feed cylinder is fixedly installed on the fixed base. A through hole is opened on one side wall of the housing near the feed cylinder. One end of the feed cylinder with its opening is movably inserted into the through hole and extends into the interior of the housing. Two fixed plates are symmetrically fixedly connected to both ends of the fixed base, and a limiting component is installed on the upper end of each of the two fixed plates. The limiting component includes a fixed tube, a movable plate, a connecting column, a limiting column, a pull handle, and a first return spring. The fixed tube is fixedly connected to the upper end of the fixed plate, the movable plate is slidably connected to the interior of the fixed tube, and the lower end of the connecting column is movably inserted into the interior of the fixed tube from the top of the fixed tube. The first return spring is installed inside the fixed tube and sleeved on the outside of the connecting column. The two ends of the first return spring are respectively connected to the inner top wall of the fixed tube and the moving plate. The pull handle is fixed to the upper end of the connecting column and located outside the fixed tube. A limiting post is fixedly connected to the lower end of the moving plate. The lower end of the limiting post extends out of the bottom end of the fixed plate. Two limiting grooves are symmetrically opened on the upper end face of the pelletizer body. The two limiting components are respectively arranged corresponding to the two limiting grooves. The limiting posts of the two limiting components are used to detachably insert into the two limiting grooves, so that the material cylinder can be detachably installed on the pelletizer body.

[0013] Optionally, the upper end face of the pelletizer body is symmetrically provided with two positioning grooves, and the two positioning grooves are respectively set to correspond to the limiting posts of the two limiting components.

[0014] Optionally, the upper outer wall of the material cylinder is provided with a positioning block. During the process of inserting the material cylinder into the through hole at the end with the cylinder opening, when the positioning block abuts against the side wall of the box, the limiting posts of the two limiting components are respectively aligned with the two limiting grooves. An insertion hole is opened at the upper end of the positioning block, and a connecting block is provided above the positioning block on the side wall of the box. The connecting block is inserted through a plug rod, and the plug rod is used to insert into the insertion hole.

[0015] Optionally, the upper end of the housing is provided with multiple exhaust fans, which are connected to the interior of the housing, and the side wall of the housing near the drive motor is symmetrically provided with several exhaust holes.

[0016] Optionally, the interior of the housing has a collection space below the cutter. The collection space has an opening, and a collection box is slidably inserted into the collection space through the opening. The collection box is used to receive plastic granules cut into pellets by the cutter.

[0017] Compared with the prior art, the improved plastic pelletizer for producing plastic pellets provided in this embodiment of the invention has at least one of the following technical effects:

[0018] When replacing the cap, two horizontal telescopic mechanisms drive the cap to move horizontally away from the cylinder opening. Then, two lifting mechanisms drive the cap to move upward to the replacement port, with the upper side of the cap extending out of the replacement port. At this point, the user can remove the cap and install another cap from the replacement port onto the two mounting bases. Next, the two lifting mechanisms drive the cap downward to the cylinder opening. Finally, the two horizontal telescopic mechanisms drive the cap to move horizontally closer to the cylinder opening and fit to cover the opening, completing the cap replacement. The diameter of the discharge hole of the replaced cap can be determined according to the usage requirements. Therefore, this application can process plastic granules of different sizes by replacing different caps. The replacement is simple and highly applicable.

[0019] During cleaning, the user pulls the handle upwards. The handle, through the connecting column, moves the moving plate and the limiting column upwards. The moving plate moves upwards and presses against the first return spring, causing the first return spring to compress elastically. At the same time, the limiting column moves upwards and retracts into the fixed tube, ending the insertion of the limiting column into the limiting groove. Then, the user can pull the material cylinder outwards, removing the end of the cylinder with the opening from the through hole, exposing the opening, and moving the cylinder to a suitable cleaning position. The user can then clean and maintain the inside of the cylinder and the pusher plate through the opening, facilitating thorough cleaning and maintenance of the inside of the cylinder and the pusher plate. This avoids the problem of plastic solidification caused by untimely cleaning and reduces downtime caused by blockages or poor flow, thereby improving overall production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the improved plastic pelletizing machine of the present invention.

[0022] Figure 2 This is a cross-sectional view of the cover of the improved plastic pelletizing machine of the present invention.

[0023] Figure 3 This is a cross-sectional view of the open cylinder cover of the improved plastic pelletizing machine of the present invention.

[0024] Figure 4 This is an exploded view of the improved plastic pelletizer for production, showing the hidden pelletizer body.

[0025] Figure 5 This is a cross-sectional view of the limiting component of the present invention.

[0026] The following are the labeling elements in the figure:

[0027] 100. Pelletizer body; 101. Housing; 102. Through hole; 103. Positioning groove; 104. Opening; 105. Connecting block; 106. Insertion rod; 107. Replacement port;

[0028] 200. Barrel; 201. Barrel opening; 202. Positioning block; 203. Insertion hole; 204. Sealing ring;

[0029] 300, Feed hopper; 400, Cylinder; 500, Pusher plate; 600, Fixed base; 700, Inverted T-shaped block; 800, Inverted T-shaped groove; 900, Fixed plate;

[0030] 110. Limiting component; 111. Fixing tube; 112. Moving plate; 113. Connecting post; 114. Limiting post; 115. Pull handle; 116. First return spring;

[0031] 120. Limiting groove; 130. Cylinder cover; 131. Mounting part; 132. Guide hole;

[0032] 140. Lifting mechanism; 150. Horizontal telescopic mechanism; 160. Mounting base; 161. U-shaped groove; 162. Vertical guide rod;

[0033] 180. Discharge hole; 190. Drive motor; 191. Support; 192. Horizontal guide rod; 193. Drive unit; 210. Exhaust fan; 220. Collection box; 230. Exhaust hole; 240. Pulling groove; 250. Cutter; 260. Electrical control device. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0038] In one embodiment of the present invention, reference is made to... Figures 1-5 An improved pelletizer for producing plastic pellets is provided, including a pelletizer body 100.

[0039] Among them, reference Figures 1-3 The pelletizer body 100 has a feed cylinder 200 at its upper end. A feed hopper 300 communicating with the interior of the feed cylinder 200 is opened on its upper outer wall. A cylinder 400 is installed at one end of the feed cylinder 200. The telescopic end of the cylinder 400 extends into the interior of the feed cylinder 200 and is fixedly connected to a pusher plate 500. The end of the feed cylinder 200 away from the cylinder 400 has a cylinder opening 201. A housing 101 is located at one end of the pelletizer body 100. The end of the feed cylinder 200 with the cylinder opening 201 passes through the housing 101 and extends into its interior. A drive motor 190 is located inside the housing 101. A cutter 250 is fixedly installed at the output end of the drive motor 190, facing the cylinder opening 201.

[0040] Among them, reference Figures 2-4The housing 101 has a lifting mechanism 140 on each side of the opening 201. Each lifting mechanism 140 has a horizontal telescopic mechanism 150, and each telescopic end of the horizontal telescopic mechanism 150 has a mounting seat 160, which are symmetrically arranged. The two mounting seats 160 are used to detachably mount a cylinder cover 130. The end face of the cylinder cover 130 has several discharge holes 180. The top wall of the housing 101 has a replacement port 107 above the cylinder cover. The horizontal telescopic mechanism 150 drives the cylinder cover 130 to move closer to or away from the opening 201, and when the cylinder cover 130 is close to the opening 201, it fits to close the opening 201. The lifting mechanism 140 drives the cylinder cover 130 to move between the opening 201 and the replacement port 107, and when the cylinder cover 130 moves to the replacement port 107, it at least partially extends out of the replacement port 107. The replacement port 107 is used to replace the cylinder cap 130 on the two mounting seats 160.

[0041] Compared with the prior art, the improved plastic pelletizer for producing plastic pellets provided in this embodiment of the invention has at least one of the following technical effects:

[0042] Reference Figures 2-4 When replacing the cap 130, the two horizontal telescopic mechanisms 150 drive the cap 130 to move horizontally away from the opening 201. Then, the two lifting mechanisms 140 drive the cap 130 to move upward to the replacement port 107. The upper side of the cap 130 extends out of the replacement port 107. At this time, the user can remove the cap 130 and install another cap 130 from the replacement port 107 onto the two mounting bases 160. Then, the two lifting mechanisms 140 drive the cap 130 to move downward to the opening 201. Finally, the two horizontal telescopic mechanisms 150 drive the cap 130 to move horizontally closer to the opening 201 and fit to cover the opening 201, thus completing the replacement of the cap 130. The diameter of the discharge hole 180 of the replaced cap 130 can be determined according to the usage requirements. Therefore, by replacing different caps 130, this application can process plastic granules of different sizes. The replacement is simple and highly applicable.

[0043] Furthermore, referring to Figure 4 The upper side of the mounting base 160 is provided with a U-shaped groove 161, and the cylinder cover 130 is provided with a mounting part 131 on both opposite sides. The two mounting parts 131 are respectively detachably inserted into the two U-shaped grooves 161 so that the cylinder cover 130 can be detachably installed on the two mounting bases 160. The structure is simple.

[0044] Furthermore, referring to Figure 4The U-shaped groove 161 is provided with a vertical guide rod 162, and the mounting part 131 is provided with a through guide hole 132. The guide hole 132 is used to fit and connect to the outside of the vertical guide rod 162, so that the mounting part 131 can be detachably inserted into the U-shaped groove 161 along the vertical guide rod 162. When replacing the cylinder cover 130, the upper ends of the two vertical guide rods 162 extend out of the replacement port 107. The user aligns the two guide holes 132 of the other cylinder cover 130 with the two vertical guide rods 162 respectively, and then pushes the cylinder cover 130 down along the two vertical guide rods 162 until the two mounting parts 131 are precisely inserted into the two U-shaped grooves 161, so that the cylinder cover 130 is precisely installed on the two mounting seats 160.

[0045] Furthermore, the bottom of the mounting part 131 is provided with an arc-shaped part, and the upper groove of the U-shaped groove 161 is an open opening. The above-mentioned configuration allows the mounting part 131 to be smoothly inserted into the U-shaped groove 161 without getting stuck.

[0046] Furthermore, referring to Figure 3 and Figure 4 The edge of the cylinder opening 201 is provided with a sealing ring 204. When the cylinder cover 130 approaches the cylinder opening 201, it presses against the sealing ring 204, and the sealing ring 204 seals the gap between the cylinder opening 201 and the cylinder cover 130, resulting in good sealing performance.

[0047] Among them, reference Figure 4 The lifting mechanism 140 is a linear module, and the horizontal telescopic mechanism 150 is installed on the moving end of the linear module. The horizontal telescopic mechanism 150 is driven to move up and down by the moving end of the linear module, thereby driving the cylinder cover 130 to move between the cylinder opening 201 and the replacement port 107.

[0048] Among them, reference Figure 4 The horizontal telescopic mechanism 150 is a telescopic cylinder. The mounting base 160 is installed on the telescopic end of the telescopic cylinder. The telescopic movement of the telescopic end of the telescopic cylinder drives the mounting base 160 to move horizontally back and forth, thereby driving the cylinder cover 130 to move closer to or away from the cylinder opening 201, so that the cylinder cover 130 fits and covers the cylinder opening 201 when it is close to the cylinder opening 201.

[0049] In another embodiment of the invention, reference is made to Figure 2 and Figure 3The drive motor 190 is mounted on a bracket 191, which has multiple horizontal guide rods 192 circumferentially arranged. These guide rods 192 slide along the side wall of the housing 101. A drive unit 193 is located on the side wall of the housing 101. The drive unit 193 is connected to the drive motor 190 and drives the cutter 250 to move closer to or away from the cap 130. When replacing the cap 130, the drive unit 193 drives the cutter away from the cap 130 to create space for replacement and prevent the cap 130 from colliding with the cutter 250, ensuring a reliable structure. After the cap 130 is replaced, the drive unit 193 drives the cutter 250 closer to the cap 130 so that the cutter 250 can rotate and cut the strip-shaped plastic into plastic granules.

[0050] Among them, reference Figure 2 and Figure 3 The drive unit 193 is a cylinder. The extension and retraction of the cylinder's telescopic rod drives the cutter 250 to move closer to or away from the cylinder cover 130. The structure is simple.

[0051] In another embodiment of the invention, reference is made to Figure 1 and Figure 2 The upper end of the pelletizer body 100 is slidably connected to a fixed base 600, and the material cylinder 200 is fixedly installed on the fixed base 600. A through hole 102 is opened on one side wall of the housing 101 near the material cylinder 200. One end of the material cylinder 200 with a cylinder opening 201 is used to be movably inserted into the through hole 102 and extend into the interior of the housing 101.

[0052] Among them, reference Figure 1 and Figure 5The fixed base 600 has two fixed plates 900 symmetrically fixedly connected to its two ends. A limiting component 110 is installed on the upper end of each of the two fixed plates 900. The limiting component 110 includes a fixed tube 111, a movable plate 112, a connecting post 113, a limiting post 114, a pull handle 115, and a first return spring 116. The fixed tube 111 is fixedly connected to the upper end of the fixed plate 900. The movable plate 112 is slidably connected to the inside of the fixed tube 111. The lower end of the connecting post 113 is movably inserted from the top of the fixed tube 111. The cylinder 200 is fixedly connected to the upper end of the moving plate 112 inside the fixed tube 111. The first return spring 116 is installed inside the fixed tube 111 and sleeved on the outside of the connecting post 113. The two ends of the first return spring 116 are respectively connected to the inner top wall of the fixed tube 111 and the moving plate 112. The pull handle 115 is fixed to the upper end of the connecting post 113 and located outside the fixed tube 111. A limiting post 114 is fixedly connected to the lower end of the moving plate 112. The lower end of the limiting post 114 extends out of the bottom end of the fixed plate 900. Two limiting grooves 120 are symmetrically opened on the upper end face of the pelletizer body 100. Two limiting components 110 are respectively set with the two limiting grooves 120. The limiting posts 114 of the two limiting components 110 are used to detachably insert into the two limiting grooves 120 respectively, so that the cylinder 200 can be detachably installed on the pelletizer body 100.

[0053] Reference Figure 1 and Figure 5 During cleaning, the user pulls the handle 115 upwards. The handle 115, through the connecting post 113, drives the moving plate 112 and the limiting post 114 upwards. The moving plate 112 moves upwards and presses against the first return spring 116, causing the first return spring 116 to elastically compress. At the same time, the limiting post 114 moves upwards and retracts into the fixed tube 111, ending the insertion of the limiting post 114 into the limiting groove 120. Then, the user can pull the material cylinder 200 outwards, moving the end of the material cylinder 200 with the cylinder opening 201. Remove (take out) the material cylinder 200 from the through hole 102, exposing the cylinder opening 201, and move the material cylinder 200 to a suitable cleaning position. Then, the user can clean and maintain the inside of the material cylinder 200 and the pusher plate 500 through the cylinder opening 201. This facilitates thorough cleaning and maintenance of the inside of the material cylinder 200 and the pusher plate 500, avoids the problem of plastic solidification caused by untimely cleaning, and reduces downtime caused by blockage or poor flow, thereby improving overall production efficiency.

[0054] Reference Figure 1 and Figure 5After cleaning, insert the end of the material cylinder 200 with the cylinder opening 201 into the interior of the housing 101 through the through hole 102 until the limiting posts 114 of the two limiting components 110 are aligned with the two limiting grooves 120 respectively. Then, the first reset spring 116 elastically resets and pushes the moving plate 112, the connecting post 113 and the pull handle 115 to move down. At the same time, it drives the limiting post 114 to move down and insert into the limiting groove 120, so as to clamp and fix the material cylinder 200 on the pelletizer body 100. The operation is simple.

[0055] Furthermore, referring to Figure 1 The upper end face of the pelletizer body 100 is symmetrically provided with two inverted T-shaped grooves 800, and the bottom end of the fixed base 600 is symmetrically fixedly connected with two inverted T-shaped blocks 700. The two inverted T-shaped blocks 700 are slidably connected to the two inverted T-shaped grooves 800 respectively. When the user pulls the material cylinder 200 outward, the inverted T-shaped blocks 700 at the bottom end of the fixed base 600 slide along the inverted T-shaped grooves 800 so that the material cylinder 200 can move along the inverted T-shaped grooves 800.

[0056] Furthermore, referring to Figure 1 and Figure 2 The upper end face of the pelletizer body 100 is symmetrically provided with two positioning grooves 103, which are respectively set to correspond to the limiting posts 114 of the two limiting components 110. When the material cylinder 200 is pulled outward for cleaning, until the limiting posts 114 of the two limiting components 110 are aligned with the two positioning grooves 103, the first reset spring 116 elastically resets and pushes the moving plate 112, the connecting post 113 and the pull handle 115 to move down, and at the same time drives the limiting post 114 to move down and insert into the positioning groove 103, so that the material cylinder 200 is locked and fixed on the pelletizer body 100 to prevent the material cylinder 200 from moving, so that the user can clean and maintain the inside of the material cylinder and the push plate from the cylinder opening 201.

[0057] Furthermore, referring to Figure 3 and Figure 4 The upper outer wall of the material cylinder 200 is provided with a positioning block 202. During the process of inserting the through hole 102 into the end of the material cylinder 200 with the cylinder opening 201, when the positioning block 202 abuts against the side wall of the box body 101, the limiting posts 114 of the two limiting components 110 are respectively aligned with the two limiting grooves 120, which plays the role of positioning and installing the material cylinder 200.

[0058] Furthermore, referring to Figure 3 and Figure 4The positioning block 202 has an insertion hole 203 at its upper end. A connecting block 105 is provided on the side wall of the housing 101 above the positioning block 202. A connecting rod 106 passes through the connecting block 105 and is used to connect with the insertion hole 203. When the positioning block 202 abuts against the side wall of the housing 101, the user pushes the connecting rod 106 downwards, causing its lower end to insert into the insertion hole 203 of the positioning block 202. This securely fastens the feed cylinder 200 onto the pelletizer body 100, ensuring structural stability.

[0059] Furthermore, referring to Figure 3 and Figure 4 The middle part of the plug rod 106 is a screw rod, and the connecting block 105 has a threaded hole through it. The screw rod is screwed into the threaded hole. The upper end of the plug rod 106 has a knob part. The user turns the knob part to drive the plug rod 106 to rotate, so that the lower end of the plug rod 106 moves down to insert into the socket 203 or moves the lower end of the plug rod 106 up to move out of the socket 203.

[0060] Furthermore, referring to Figures 1-3 The upper end of the housing 101 is provided with multiple exhaust fans 210, which are connected to the interior of the housing 101. Several exhaust holes 230 are symmetrically opened on the side wall of the housing 101 near the drive motor 190. The heat inside the housing 101 can be discharged from the exhaust holes 230 by blowing air through the exhaust fans 210, thus playing a heat dissipation role.

[0061] Furthermore, referring to Figure 2 and Figure 3 The inside of the housing 101 has a collection space below the cutter 250. The collection space has an opening 104. A collection box 220 is slidably inserted into the collection space through the opening 104. The collection box 220 is used to receive the plastic granules cut into pellets by the cutter 250, making it convenient to collect the plastic granules.

[0062] Furthermore, referring to Figure 2 and Figure 3 The collection box 220 has a pull groove 240 at one end of the opening. The plastic granules cut by the cutter 250 will fall into the collection box 220 below. The user can pull the collection box 220 out of the collection space through the pull groove 240, so that the user can easily take out the collection box 220 and the plastic granules inside.

[0063] Operating principle and advantages: First, the heated plastic raw material is poured into the material cylinder 200 through the feed hopper 300. Then, the pusher plate 500 is pushed by the cylinder 400 to squeeze the plastic raw material. The plastic raw material is squeezed out through the discharge hole 180 to form a strip. At the same time, the drive motor 190 is started to drive the cutter 250 to rotate and cut the strip of plastic. After being cut by the cutter 250, it forms plastic granules.

[0064] Among them, reference Figure 1 The improved pelletizer for plastic granulation includes an electrical control device 260, a cylinder 400, a drive motor 190, an exhaust fan 210, a drive unit 193, a lifting mechanism 140, and a horizontal telescopic mechanism 150, all electrically connected to the electrical control device 260. In this embodiment, the electrical control device 260 can be configured using a PLC or integrated chip according to actual production needs. Since the electrical control device 260 is a mature and established technology, how it controls the operation of the improved plastic granulation pelletizer should be well-known and mastered by those skilled in the art. Therefore, its control principle will not be described in detail here.

[0065] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0066] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the invention to these descriptions. For those skilled in the art, the architectural form of this invention can be flexibly varied without departing from its conceptual framework, leading to the derivation of a series of products. Any simple deductions or substitutions should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. An improved pelletizer for producing plastic pellets, comprising a pelletizer body; a material cylinder is provided at the upper end of the pelletizer body, a feeding hopper communicating with the interior of the material cylinder is provided on the upper outer wall of the material cylinder, a cylinder is installed at one end of the material cylinder, the telescopic end of the cylinder extends into the interior of the material cylinder and is fixedly connected to a pusher plate, and the end of the material cylinder away from the cylinder has a cylinder opening; a housing is provided at one end of the pelletizer body, the end of the material cylinder with the cylinder opening passes through the housing and extends into the interior of the housing; a drive motor is provided inside the housing, and a cutter is fixedly provided at the output end of the drive motor, the cutter facing the cylinder opening; Its features are, The interior of the housing is equipped with a lifting mechanism on each of the two opposite sides of the cylinder opening. Each of the two lifting mechanisms is equipped with a horizontal telescopic mechanism, and each of the telescopic ends of the two horizontal telescopic mechanisms is equipped with a mounting seat. The two mounting seats are symmetrically arranged. The two mounting seats are used to detachably install a cylinder cover. The end face of the cylinder cover has several discharge holes. The top wall of the housing has a replacement port above the cylinder cover. The horizontal telescopic mechanism is used to drive the cylinder cover to move closer to or away from the cylinder opening, and the cylinder cover fits to close the cylinder opening when it is close to it. The lifting mechanism is used to drive the cylinder cover to move between the cylinder opening and the replacement port. When the cylinder cover moves to the replacement port, it at least partially extends out of the replacement port. The replacement port is used to replace the cylinder cap on both of the mounting seats.

2. The improved pelletizer for producing plastic pellets according to claim 1, characterized in that: The upper side of the mounting base is provided with a U-shaped groove, and each of the opposite sides of the cylinder cover is provided with a mounting part, which is used to be detachably inserted into the two U-shaped grooves respectively.

3. The improved pelletizer for producing plastic pellets according to claim 2, characterized in that: A vertical guide rod is provided in the U-shaped groove, and a guide hole is provided in the mounting part through the top and bottom. The guide hole is used to fit and connect to the outside of the vertical guide rod so that the mounting part can be detachably inserted into the U-shaped groove along the vertical guide rod.

4. The improved pelletizer for producing plastic pellets according to claim 2, characterized in that: The bottom of the mounting part is provided with an arc-shaped part, and the upper opening of the U-shaped groove is an open opening.

5. The improved pelletizer for producing plastic pellets according to any one of claims 1-4, characterized in that: The drive motor is mounted on a bracket, and the bracket is provided with multiple horizontal guide rods around its circumference. The horizontal guide rods slide through the side wall of the housing. The side wall of the housing is provided with a drive unit, which is connected to the drive motor to drive the cutter to move closer to or away from the cylinder cover.

6. The improved pelletizer for producing plastic pellets according to any one of claims 1-4, characterized in that: A fixed base is slidably connected to the upper end of the pelletizer body. The feed cylinder is fixedly installed on the fixed base. A through hole is opened on one side wall of the housing near the feed cylinder. One end of the feed cylinder with its opening is movably inserted into the through hole and extends into the interior of the housing. Two fixed plates are symmetrically fixedly connected to both ends of the fixed base. A limiting component is installed on the upper end of each of the two fixed plates. The limiting component includes a fixed tube, a movable plate, a connecting column, a limiting column, a pull handle, and a first return spring. The fixed tube is fixedly connected to the upper end of the fixed plate. The movable plate is slidably connected to the interior of the fixed tube. The lower end of the connecting column is movably inserted into the interior of the fixed tube from the top of the fixed tube and... The upper end of the movable plate is fixedly connected, the first return spring is installed inside the fixed tube and sleeved on the outside of the connecting column, the two ends of the first return spring are respectively connected to the inner top wall of the fixed tube and the movable plate, the pull handle is fixed to the upper end of the connecting column and located outside the fixed tube; a limiting post is fixedly connected to the lower end of the movable plate, the lower end of the limiting post extends out of the bottom end of the fixed plate; two limiting grooves are symmetrically opened on the upper end face of the pelletizer body, the two limiting components are respectively arranged corresponding to the two limiting grooves, and the limiting posts of the two limiting components are used to detachably insert into the two limiting grooves respectively, so that the material cylinder can be detachably installed on the pelletizer body.

7. The improved pelletizer for producing plastic pellets according to claim 6, characterized in that: The upper end face of the pelletizer body is symmetrically provided with two positioning grooves, and the two positioning grooves are respectively set to correspond to the limiting posts of the two limiting components.

8. The improved pelletizer for producing plastic pellets according to claim 6, characterized in that: The upper outer wall of the material cylinder is provided with a positioning block. During the process of inserting the material cylinder into the through hole at the end with the cylinder opening, when the positioning block abuts against the side wall of the box, the limiting posts of the two limiting components are respectively aligned with the two limiting grooves. An insertion hole is opened at the upper end of the positioning block. A connecting block is provided above the positioning block on the side wall of the box. The connecting block is inserted through a plug rod, which is used to insert into the insertion hole.

9. The improved pelletizer for producing plastic pellets according to any one of claims 1-4, characterized in that: The upper end of the housing is provided with multiple exhaust fans, which are connected to the interior of the housing. Several exhaust holes are symmetrically opened on the side wall of the housing near the drive motor.

10. The improved pelletizer for producing plastic pellets according to any one of claims 1-4, characterized in that: The interior of the box has a material collection space below the cutter. The material collection space has an opening, and a material collection box is slidably inserted into the material collection space through the opening. The material collection box is used to receive the plastic granules cut into pellets by the cutter.

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