Plastic particle cutting machine

Abstract

The utility model belongs to the technical field of dicing cutters, and particularly relates to a plastic particle dicing cutter which comprises a dicing cutter body. The upper end of the granulator body is slidably connected with a fixing seat, the upper end of the fixing seat is fixedly connected with a charging barrel, the outer side wall of the charging barrel is fixedly connected with a feeding hopper, one end of the charging barrel is provided with an air cylinder, the telescopic end of the air cylinder is fixedly connected with a pushing plate, the charging barrel is movably connected with a barrel cover, and one end of the barrel cover is symmetrically provided with discharging holes. Fixing assemblies are symmetrically installed at the end, close to the charging barrel, of the barrel cover, a through hole is formed in the end, close to the charging barrel, of the granulator body, the charging barrel is connected with the through hole in an inserted mode, a driving motor is installed at one end of the granulator body, and the output end of the driving motor extends into the granulator body and is fixedly connected with a cutter. Due to the adoption of the structure, the inside of the charging barrel and the push plate can be conveniently and thoroughly cleaned and maintained, the problem of plastic solidification caused by untimely cleaning is avoided, and the downtime caused by blockage or unsmooth flowing is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pelletizers, in particular to a plastic particle pelletizer. Background Art

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

[0003] For example: Chinese utility model patent publication number CN220946167U discloses a pelletizer for producing PC plastic particles, which includes a casing, a water reservoir is provided on one side of the casing, a pelletizing mechanism is provided on the top of the water reservoir, an exhaust mechanism is provided on the top of one side of the casing, a first through hole is provided on one side of the water reservoir, a first water pipe is fixedly connected to the first through hole, a water outlet of the first water pipe is fixedly connected to a water pump, the water pump is fixedly connected to the outer side of the casing, a second water pipe is fixedly connected to the water outlet of the water pump, the second water pipe passes through the casing, a second through hole is provided on one side of the water reservoir, a receiving dish is slidably connected to one side of the casing, and a third through hole is provided on one side of the receiving dish. Cooling liquid is poured into the water reservoir, and the water pump is turned on when producing plastic particles. Under the action of the water pump, the cooling liquid flows out from the second water pipe to cool the cut plastic particles, and the cooling liquid flows into the receiving dish and returns to the water reservoir through the third through hole. Circulating cooling improves the quality of the produced plastic particles to a certain extent.

[0004] Although the above-mentioned pelletizer for PC plastic pellet production has improved the production efficiency of plastic pellets to a certain extent, after the plastic is pelletized, some plastic will adhere to the inner wall of the barrel, the push plate and the discharge hole. If it is not cleaned in time, the solidified plastic will contain impurities, incompletely melted particles or carbonized materials, etc. These are easily mixed into the product during the subsequent processing, forming defects such as black spots and impurities, seriously affecting the quality of the product. In addition, the plastic attached to the barrel and the push plate will cause poor material flow during the pelletizing process, thereby affecting the uniformity of the pelletizing and increasing the proportion of defective products. Utility Model Content

[0005] The purpose of the utility model is to provide a plastic granule cutting machine, aiming to solve one of the technical problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the embodiment of the present invention provides a plastic pelletizer, comprising a pelletizer body;

[0007] The upper end of the pelletizer body is slidably connected to a fixed seat, and the upper end of the fixed seat is fixedly connected to a barrel; the upper outer wall of the barrel is fixedly connected to a feed hopper, one end of the barrel is installed with a cylinder, the telescopic end of the cylinder extends into the interior of the barrel and is fixedly connected to a push plate, the end of the barrel away from the cylinder has a barrel mouth, the barrel mouth is detachably covered with a barrel cover, and one end of the barrel cover is symmetrically provided with a plurality of discharge holes;

[0008] A box is provided at one end of the pelletizer body, a through hole is provided on a side wall of the box close to the barrel, an end of the barrel with a barrel opening is used to be movably inserted into the through hole and extend into the interior of the box, a drive motor is installed on a side wall of the box away from the barrel, an output end of the drive motor extends into the interior of the box and a cutter is fixedly connected to the output end;

[0009] The two ends of the fixing seat are symmetrically fixedly connected to the two fixing plates, and the upper ends of the two fixing plates are installed with a limit assembly; the limit assembly includes a fixed tube, a movable plate, a connecting column, a limit column, a pull handle and a first return spring; the upper end of the fixed plate is fixedly connected to the fixed tube, and 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 and fixedly connected to the upper end of the movable plate. The first return spring is installed in the interior of the fixed tube and sleeved on the outside of the connecting column, and the two ends of the first return spring are respectively connected to the inner top wall of the fixed tube and the movable plate, and the pull handle is fixed to the upper end of the connecting column and located outside the fixed tube; the lower end of the movable plate is fixedly connected to a limit column, and the lower end of the limit column extends out of the bottom end of the fixed plate;

[0010] Among them, two limit grooves are symmetrically opened on the upper end surface of the pelletizer body, and the two limit components are respectively arranged corresponding to the two limit grooves. The limit columns of the two limit components are used to be detachably plugged into the two limit grooves respectively, so that the barrel can be detachably installed on the pelletizer body.

[0011] Optionally, two inverted T-shaped grooves are symmetrically opened on the upper end surface of the pelletizer body, and two inverted T-shaped blocks are symmetrically fixedly connected to the bottom end of the fixing seat, and the two inverted T-shaped blocks are slidingly connected to the two inverted T-shaped grooves respectively.

[0012] Optionally, two positioning grooves are symmetrically provided on the upper end surface of the pelletizer body, and the two positioning grooves are respectively arranged to correspond to the limiting columns of the two limiting assemblies.

[0013] Optionally, a positioning block is provided on the upper outer wall of the barrel. When one end of the barrel with a barrel mouth is installed into the through hole, when the positioning block abuts against the side wall of the box body, the limiting columns of the two limiting assemblies are aligned with the two limiting grooves respectively.

[0014] Optionally, two fixing blocks are symmetrically fixed on one end of the barrel cover near the barrel mouth of the barrel, and a fixing assembly is installed inside the two fixing blocks; the fixing assembly includes a second return spring, a press plate, a clamping block and a press block; a cavity is opened inside the fixed block, and the press plate is slidably installed in the cavity, and the two second return springs are arranged in the cavity, and the two ends of the second return spring are respectively connected to the press plate and the cavity wall of the cavity; a clamping block and a press block are fixed on one end of the press plate away from the second return spring, and the end of the clamping block away from the press plate extends out of the side end of the fixed block, and the end of the press block away from the press plate extends out of the outside of the barrel cover; two fixing grooves are symmetrically opened on the edge of the barrel mouth of the barrel, and the two fixing blocks are used to adapt and plug into the two fixing grooves respectively, and a clamping groove is opened on the inner wall of the fixed groove, and the clamping block is used to clamp with the clamping groove.

[0015] Optionally, an exhaust fan is installed at the upper end of the interior of the box, and a plurality of exhaust holes are symmetrically provided on a side wall of the box close to the drive motor.

[0016] Optionally, a collection space is provided inside the box below the cutter, and the collection space has an opening. A collection box is slidably installed into the collection space from the opening, and the collection box is used to receive the plastic particles cut into particles by the cutter.

[0017] Optionally, a pulling groove is provided at one end of the opening of the aggregate box.

[0018] Compared with the prior art, the above one or more technical solutions in the plastic pelletizer provided by the embodiment of the present invention have at least one of the following technical effects:

[0019] When cleaning, the user pulls the handle upwards, and the handle drives the movable plate and the limit column to move upwards through the connecting column. The movable plate moves up and presses against the first return spring, causing the first return spring to be elastically compressed. At the same time, the limit column moves up and retracts into the interior of the fixed tube, and the limit column and the limit groove are connected. Then the user can pull the barrel outward, move the end of the barrel with the barrel mouth out of the through hole (take it out), and expose the barrel cover, so that the barrel is moved out to the appropriate position, and then open the barrel cover to expose the barrel mouth. The user can clean and maintain the inside of the barrel and the push plate from the barrel mouth, which is convenient for thorough cleaning and maintenance of the inside of the barrel, the push plate and the barrel cover, avoiding the problem of plastic solidification due to untimely cleaning, and reducing downtime caused by blockage or poor flow, thereby improving overall production efficiency.

[0020] After cleaning, install the barrel cover back to the barrel mouth, and then extend the end of the barrel with the barrel mouth and the barrel cover into the interior of the box through the through hole until the limit columns of the two limit assemblies are aligned with the two limit grooves respectively. The first reset spring elastically resets and pushes the movable plate, connecting column and handle downward, and at the same time drives the limit column to move downward and insert into the limit groove to clamp the barrel and fix it on the pelletizer body. The operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is a schematic structural diagram of the plastic pelletizer of the present invention.

[0023] Figure 2 This is another perspective view of the plastic pelletizer of the present invention.

[0024] Figure 3 It is a cross-sectional view of the plastic pelletizer of the present invention.

[0025] Figure 4 This is a cross-sectional view of the limiting assembly of the plastic pelletizer of the present invention.

[0026] Figure 5 It is a cross-sectional view of the fixing assembly of the plastic pelletizer of the present invention.

[0027] Among them, the reference numerals in the figures are:

[0028] 100, pelletizer body; 101, housing; 102, through hole; 103, positioning slot; 104, opening; 200, barrel; 201, barrel opening; 202, positioning block; 300, feed hopper; 400, cylinder; 500, push plate; 600, fixing seat; 700, inverted T-shaped block; 800, inverted T-shaped slot; 900, fixing plate;

[0029] 110. Limiting assembly; 111. Fixed tube; 112. Moving plate; 113. Connecting column; 114. Limiting column; 115. Pull handle; 116. First return spring;

[0030] 120, limiting groove; 130, cylinder cover; 140, fixing block; 150, fixing groove;

[0031] 160. Fixing assembly; 161. Cavity; 162. Second return spring; 163. Press plate; 164. Block; 165. Press block;

[0032] 170, card slot; 180, discharge hole; 190, drive motor; 210, exhaust fan; 220, collection box; 230, exhaust hole; 240, pulling slot; 250, cutter. DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0037] In one embodiment of the present invention, referring to Figure 1-Figure 5 , provides a plastic pelletizer, including a pelletizer body 100.

[0038] Among them, reference Figure 1-Figure 3 The upper end of the pelletizer body 100 is slidably connected to a fixed seat 600, and the upper end of the fixed seat 600 is fixedly connected to a barrel 200; a feed hopper 300 connected to the interior of the barrel 200 is provided on the upper outer wall of the barrel 200, and a cylinder 400 is installed at one end of the barrel 200, and the telescopic end of the cylinder 400 extends toward the interior of the barrel 200 and is fixedly connected to a push plate 500, and the barrel 200 has a barrel mouth 201 at the end away from the cylinder 400, and the barrel mouth 201 is detachably covered with a barrel cover 130, and a plurality of discharge holes 180 are opened through the end surface of the barrel cover 130.

[0039] Among them, reference Figure 3 A box body 101 is provided at one end of the pelletizer body 100, and a through hole 102 is opened on a side wall of the box body 101 close to the barrel 200. One end of the barrel 200 having a barrel mouth 201 is used to be movably inserted into the through hole 102 and extend into the interior of the box body 101. A drive motor 190 is installed on a side wall of the box body 101 away from the barrel 200. The output end of the drive motor 190 extends toward the interior of the box body 101 and its output end is fixedly connected to a cutter 250.

[0040] Among them, reference Figure 2-Figure 4 , the two ends of the fixed seat 600 are symmetrically fixedly connected with two fixed plates 900, and a limit assembly 110 is installed on the upper ends of the two fixed plates 900; the limit assembly 110 includes a fixed tube 111, a movable plate 112, a connecting column 113, a limit column 114, a pull handle 115 and a first return spring 116; the upper end of the fixed plate 900 is fixedly connected with a fixed tube 111, the movable plate 112 is slidably connected to the inside of the fixed tube 111, and the lower end of the connecting column 113 is movably inserted from the top of the fixed tube 111 The first return spring 116 is installed in the interior of the fixed tube 111 and is sleeved on the outside of the connecting column 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 movable plate 112. The pull handle 115 is fixed to the upper end of the connecting column 113 and is located outside the fixed tube 111. The lower end of the movable plate 112 is fixedly connected to a limit column 114, and the lower end of the limit column 114 extends out of the bottom end of the fixed plate 900.

[0041] Among them, reference Figure 4 The upper end surface of the pelletizer body 100 is symmetrically provided with two limit grooves 120, and the two limit assemblies 110 are respectively arranged corresponding to the two limit grooves 120. The limit columns 114 of the two limit assemblies 110 are used to be detachably plugged into the two limit grooves 120, so that the barrel 200 can be detachably installed on the pelletizer body 100.

[0042] Compared with the prior art, the above one or more technical solutions in the plastic pelletizer provided by the embodiment of the present invention have at least one of the following technical effects:

[0043] Reference Figure 1-Figure 5 When cleaning, the user pulls up the handle 115, and the handle 115 drives the movable plate 112 and the limiting column 114 to move upward through the connecting column 113. The movable plate 112 moves upward and presses against the first return spring 116, so that the first return spring 116 is elastically compressed. At the same time, the limiting column 114 moves upward and retracts into the interior of the fixed tube 111. The limiting column 114 and the limiting groove 120 are plugged in. Then the user can pull the barrel 200 outward and remove the end of the barrel 200 with the barrel opening 201 from the through hole 102 ( The barrel 200 is removed) and the barrel cover 130 is exposed, so that the barrel 200 is moved out to a suitable position. Then the barrel cover 130 is opened to expose the barrel opening 201. The user can clean and maintain the interior of the barrel 200 and the pusher plate 500 through the barrel opening 201, which facilitates thorough cleaning and maintenance of the interior of the barrel 200, the pusher plate 500 and the barrel cover 130, avoids the problem of plastic solidification caused by untimely cleaning, and reduces downtime caused by blockage or poor flow, thereby improving overall production efficiency.

[0044] Reference Figure 1-Figure 5 After cleaning, install the barrel cover 130 back to the barrel mouth 201 of the barrel 200, and then extend the end of the barrel 200 with the barrel mouth 201 and the barrel cover 130 from the through hole 102 into the interior of the box body 101 until the limiting columns 114 of the two limiting assemblies 110 are aligned with the two limiting grooves 120 respectively. The first return spring 116 elastically resets and pushes the movable plate 112, the connecting column 113 and the handle 115 to move downward, and at the same time drives the limiting column 114 to move downward and insert into the limiting groove 120, so that the barrel 200 is clamped and fixed on the pelletizer body 100. The operation is simple.

[0045] Further, refer to Figure 1 The upper end surface of the pelletizer body 100 is symmetrically provided with two inverted T-shaped grooves 800, and the bottom end of the fixed seat 600 is symmetrically fixedly connected with two inverted T-shaped blocks 700, which are respectively slidably connected to the two inverted T-shaped grooves 800; when the user pulls the barrel 200 outward, the inverted T-shaped block 700 at the bottom end of the fixed seat 600 slides along the inverted T-shaped groove 800, so that the barrel 200 can move along the inverted T-shaped groove 800.

[0046] Further, refer to Figure 1 and Figure 2, the upper end surface of the pelletizer body 100 is symmetrically provided with two positioning grooves 103, and the two positioning grooves 103 are respectively arranged corresponding to the limiting columns 114 of the two limiting assemblies 110; when the barrel 200 is pulled outward for cleaning, until the limiting columns 114 of the two limiting assemblies 110 are aligned with the two positioning grooves 103 respectively, the first return spring 116 elastically returns to push the movable plate 112, the connecting column 113 and the handle 115 to move downward, and at the same time drives the limiting column 114 to move downward and insert into the positioning groove 103, so that the barrel 200 is clamped and fixed on the pelletizer body 100 to prevent the barrel 200 from moving, so that the user can clean and maintain the inside of the barrel and the push plate from the barrel mouth 201.

[0047] Further, refer to Figure 1 and Figure 3 A positioning block 202 is provided on the upper outer wall of the barrel 200. When one end of the barrel 200 having the barrel mouth 201 is installed into the through hole 102, when the positioning block 202 abuts against the side wall of the box body 101, the limiting columns 114 of the two limiting assemblies 110 are respectively aligned with the two limiting grooves 120, which plays the role of positioning and installing the barrel 200.

[0048] In another embodiment of the present invention, referring to Figure 3 and Figure 5The barrel cover 130 is symmetrically fixed with two fixing blocks 140 at one end close to the barrel opening 201 of the barrel 200. A fixing assembly 160 is installed inside each of the two fixing blocks 140. The fixing assembly 160 includes a second return spring 162, a pressing plate 163, a clamping block 164 and a pressing block 165. A cavity 141 is provided inside the fixing block 140. The pressing plate 163 is slidably installed in the cavity 141. The two second return springs 162 are arranged in the cavity 141. The two ends of the second return spring 162 are respectively connected to the pressing plate 163 and the cavity 141. The pressing plate 163 is connected to the wall; a clamping block 164 and a pressing block 165 are fixedly provided on the end away from the second return spring 162, and the end of the clamping block 164 away from the pressing plate 163 extends out of the side end of the fixed block 140, and the end of the pressing block 165 away from the pressing plate 163 extends out of the outside of the barrel cover 130; two fixing grooves 150 are symmetrically provided on the edge of the barrel mouth 201 of the barrel 200, and the two fixing blocks 140 are used to respectively adapt to and plug into the two fixing grooves 150, and a clamping groove 170 is provided on the inner wall of the fixing groove 150, and the clamping block 164 is used to clamp with the clamping groove 170. When the barrel cover 130 is removed for cleaning, after the barrel 200 is moved out of the through hole 102 through the limit assembly 110, the push block 165 is pressed to make the push block 165 drive the push plate 163 and the clamping block 164 to move, and the push plate 163 presses the second return spring 162, and the second return spring 162 is compressed. At the same time, the clamping block 164 retracts into the cavity 141, and the clamping block 164 ends the plugging with the clamping slot 170. Then, the barrel cover 130 is pulled outward to end the plugging of the fixing block 140 with the fixing slot 150, and the barrel cover 130 is removed from one end of the barrel 200. The operation is simple.

[0049] In another embodiment of the present invention, referring to Figure 3 An exhaust fan 210 is installed at the upper end of the box body 101, and a plurality of exhaust holes 230 are symmetrically opened on one side wall of the box body 101 close to the drive motor 190. The exhaust fan 210 blows air to discharge the heat inside the box body 101 from the exhaust holes 230, thereby achieving a heat dissipation effect.

[0050] In another embodiment of the present invention, referring to Figure 3 A collection space is provided inside the box body 101 below the cutter 250. The collection space has an opening 104. A collection box 220 is slid into the collection space from the opening 104. The collection box 220 is used to receive the plastic particles cut into particles by the cutter 250, making it convenient to collect the plastic particles.

[0051] Further, refer to Figure 3The aggregate box 220 is provided with a pulling groove 240 at one end of the opening. The plastic particles cut by the cutter 250 will fall into the aggregate box 220 below. The user can pull the aggregate box 220 out of the aggregate space through the pulling groove 240, making it convenient for the user to take out the aggregate box 220 and the plastic particles therein.

[0052] Principle and advantages of use: First, the heated plastic raw material is poured into the barrel 200 from the feed hopper 300, and then the push plate 500 is pushed by the cylinder 400 to extrude the plastic raw material. The plastic raw material is extruded into strips along the discharge hole 180. At the same time, the drive motor 190 is started to drive the cutter 250 to rotate and cut the strip plastic. After being cut by the cutter 250, plastic particles are formed.

[0053] The plastic pelletizer includes an electronic control device (not shown), to which the cylinder 400, drive motor 190, and exhaust fan 210 are all electrically connected. In this embodiment, the electronic control device can be configured using a PLC or an integrated circuit chip based on actual production needs. Since electronic control devices are a mature and established technology in the prior art, how they control the operation of the plastic pelletizer should be well known and understandable to those skilled in the art. Therefore, the control principle of the electronic control device will not be further described herein.

[0054] The rest of this embodiment is the same as that of the first embodiment. The features not explained in this embodiment are all based on the explanations of the first embodiment and will not be described in detail here.

[0055] The above description further details the present invention in conjunction with specific preferred embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. A person skilled in the art of the present invention will appreciate that its architecture is flexible and adaptable, allowing for the development of a series of products without departing from the present invention's concept. Simple deductions or substitutions should be considered within the scope of patent protection for the present invention as defined by the submitted claims.

Claims

1. A plastic pelletizer, comprising a pelletizer body; in, The upper end of the pelletizer body is slidably connected to a fixed base, and the upper end of the fixed base is fixedly connected to a barrel; the upper outer wall of the barrel is provided with a feed hopper connected to the interior thereof, one end of the barrel is mounted with a cylinder, the telescopic end of the cylinder extends into the interior of the barrel and is fixedly connected to a push plate, the end of the barrel away from the cylinder has a barrel opening, the barrel opening is detachably covered with a barrel cover, and the end surface of the barrel cover is penetrated by a plurality of discharge holes; A box is provided at one end of the pelletizer body, a through hole is provided on a side wall of the box close to the barrel, an end of the barrel with a barrel opening is used to be movably inserted into the through hole and extend into the interior of the box, a drive motor is installed on a side wall of the box away from the barrel, an output end of the drive motor extends into the interior of the box and a cutter is fixedly connected to the output end; The two ends of the fixing plate are symmetrically fixedly connected at both ends of the fixing seat, and a limit assembly is installed on the upper ends of the two fixing plates; the limit assembly includes a fixing tube, a movable plate, a connecting column, a limit column, a pull handle and a first return spring; the upper end of the fixing plate is fixedly connected to the fixing tube, and the movable plate is slidably connected to the inside of the fixing tube, the lower end of the connecting column is movably inserted into the inside of the fixing tube from the top of the fixing tube and fixedly connected to the upper end of the movable plate. The first return spring is installed inside the fixing 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 fixing tube and the movable plate, the pull handle is fixed to the upper end of the connecting column and is located outside the fixed tube; the lower end of the movable plate is fixedly connected to a limit column, and the lower end of the limit column extends out of the bottom end of the fixed plate; The upper end surface of the pelletizer body is symmetrically provided with two limit grooves, the two limit assemblies are respectively arranged corresponding to the two limit grooves, and the limit columns of the two limit assemblies are respectively used to be detachably plugged into the two limit grooves, so that the barrel can be detachably mounted on the pelletizer body; The cam is secured to the interior of the cylinder with two latches secured thereto, and the latch has a latching mechanism secured thereto, wherein the latch has a latching mechanism secured thereto. The cam is secured to the interior of the cylinder with two latches secured thereto. The cam is secured to the interior of the cylinder with two latches secured thereto.

2. The plastic pelletizer according to claim 1, characterized in that: The upper end surface of the pelletizer body is symmetrically provided with two inverted T-shaped grooves, the bottom end of the fixing seat is symmetrically fixedly connected with two inverted T-shaped blocks, and the two inverted T-shaped blocks are respectively slidably connected with the two inverted T-shaped grooves.

3. The plastic pelletizer according to claim 2, characterized in that: Two positioning grooves are symmetrically provided on the upper end surface of the pelletizer body, and the two positioning grooves are respectively arranged corresponding to the limiting columns of the two limiting assemblies.

4. The plastic pelletizer according to claim 1, characterized in that: A positioning block is provided on the upper outer wall of the barrel. When one end of the barrel with the barrel mouth is installed into the through hole, when the positioning block abuts against the side wall of the box body, the limiting columns of the two limiting assemblies are aligned with the two limiting grooves respectively.

5. The plastic pelletizer according to any one of claims 1 to 4, characterized in that: An exhaust fan is installed at the upper end of the interior of the box body, and a plurality of exhaust holes are symmetrically opened on a side wall of the box body close to the driving motor.

6. The plastic pelletizer according to any one of claims 1 to 4, characterized in that: An aggregate space is provided inside the box below the cutter. The aggregate space has an opening. A aggregate box is slidably inserted into the aggregate space from the opening. The aggregate box is used to receive the plastic particles cut into particles by the cutter.

7. The plastic pelletizer according to claim 6, characterized in that: The collecting box is provided with a pulling groove at one end of the opening.

Images