Plastic color master batch dicing device

Abstract

The utility model discloses a plastic color master batch pelletizing device which comprises a rack, a material guide plate fixedly connected with the rack, a material limiting plate arranged at the top of the right end of the material guide plate, a pelletizing cutter arranged above the right end of the material guide plate and installed on a cutter holder, a driving assembly driving the cutter holder to ascend and descend and a material receiving piece obliquely arranged at the right end of the material guide plate. A plurality of first guide grooves used for guiding color master strips to be transversely conveyed are formed in the top of the guide plate, a plurality of second guide grooves corresponding to the first guide grooves in a one-to-one up-and-down mode are formed in the bottom of the limiting plate, and the first guide grooves and the second guide grooves form guide holes. An air cavity is formed in the tool apron, an air inlet communicated with the air cavity is formed in the top of the tool apron, and a plurality of air outlets communicated with the air cavity and located on the right side of the pelletizing tool are longitudinally formed in the bottom of the tool apron at intervals. According to the technical scheme, the color master batches cut off can be blown off by airflow output by the air outlet holes, the phenomenon that the cut color master batches are cut off for two times or even multiple times is avoided, and therefore the quality of the color master batches is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of color masterbatch processing, and in particular to a plastic color masterbatch pelletizing device. Background Technology

[0002] A masterbatch pelletizing device is a cutting device used to cut masterbatch strips into small pellets.

[0003] Chinese patent CN216506120U discloses a color masterbatch pelletizing device. Although the pelletizing device can pelletize color masterbatch strips, the pellets cut by the pelletizing device are located on the right edge of the cutting plate. Some of the cut color masterbatch pellets are carried up and fall onto the color masterbatch strip to be cut as the cutter moves up and down. This will cause the color masterbatch to be pelletized twice or even multiple times, resulting in uneven length of the cut color masterbatch pellets and the generation of debris and dust, thus affecting the quality of the color masterbatch. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a plastic masterbatch pelletizing device to solve the above-mentioned technical problems.

[0005] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0006] According to one aspect of this utility model, a plastic masterbatch pelletizing device is designed, comprising: a frame, a guide plate fixedly connected to the frame, a limiting plate disposed at the top right end of the guide plate, a pelletizing blade disposed above the right end of the guide plate and mounted on a blade holder, a drive assembly for driving the blade holder to rise and fall, and a receiving component inclinedly disposed at the right end of the guide plate. The top of the guide plate is provided with a plurality of first guide grooves for guiding the masterbatch strips to be transported laterally, and the bottom of the limiting plate is provided with a plurality of second guide grooves that correspond one-to-one with the first guide grooves. The first guide grooves and the second guide grooves constitute a guide hole. The blade holder is provided with an air chamber inside, an air inlet hole communicating with the air chamber at the top, and a plurality of air outlet holes communicating with the air chamber and located on the right side of the pelletizing blade at longitudinal intervals at the bottom.

[0007] Using the above technical solution, when this pelletizing device is in use, the air inlet on the blade holder is connected to the air pump via an air pipe. The air pump introduces high-pressure gas into the air chamber and outputs it from the air outlet. The masterbatch strip passes through the guide hole from the left end of the guide plate to the right. When the device is started, the drive component drives the pelletizing blade to rise and fall during the pelletizing process. The cut masterbatch pellets are blown off by the airflow from the air outlet and fall onto the receiving part for output. This prevents the cut masterbatch pellets from being carried upwards by the movement of the cutter and falling onto the masterbatch strip, causing the masterbatch pellets to be pelletized a second or even multiple times. This improves the quality of the masterbatch pellets. The blowing air also has a certain drying effect on the masterbatch pellets. The first guide groove at the top of the guide plate and the second guide groove on the limiting plate can ensure that the masterbatch strips are conveyed to the right one by one. The limiting plate can limit the up and down swing of the end of the masterbatch strip as it moves with the cutter, ensuring that the cut of the masterbatch strip is even and improving the quality of the masterbatch pellets.

[0008] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0009] In some embodiments, a baffle plate is provided at the top left end of the receiving component. The baffle plate can prevent the masterbatch that falls off during cutting from being blown onto the receiving component by the airflow and then bounced away.

[0010] In some embodiments, the surface of the pelletizer is provided with a gradient anti-stick coating. This gives the pelletizer an anti-stick effect.

[0011] In some embodiments, the gradient anti-stick coating comprises a CrN underlayer, a MoS2 / TiAlN intermediate layer, and a fluorinated graphite top layer, with a total thickness of 5-8 μm.

[0012] In some embodiments, a sliding rod is provided on the top of the guide plate, and the sliding hole on the limiting plate slides vertically with the sliding rod. The limiting plate is connected to a drive unit that drives its lifting and lowering. The guide plate of this device is connected to the conveyor line that conveys masterbatch strips. Multiple masterbatch strips conveyed by the conveyor line are cut into multiple first guide grooves on the guide plate. The drive unit drives the limiting plate to move up a set distance. When the end of the masterbatch strip moves to the right side of the guide plate, the drive unit drives the limiting plate to move down onto the guide plate. If the limiting plate is not connected to a drive unit that drives its lifting and lowering, when the right end of the masterbatch strip is bent or the end is flattened and its width increases, it cannot pass through the guide hole, affecting the masterbatch strip pelletizing process.

[0013] In some embodiments, the drive assembly includes a motor mounted on a frame, a crankshaft rotatably coupled to the frame and connected to the motor output shaft via a coupling, and a connecting rod with one end rotatably coupled to the crankshaft and the other end fixed to the top of the cutter holder. The sliders at both ends of the cutter holder slide in engagement with grooves on the frame. Both the outer wall of the slider and the inner wall of the groove are coated with a nano-ceramic coating. The nano-ceramic coating has a certain self-lubricating function and a relatively low coefficient of friction, facilitating rapid up-and-down sliding of the sliders. The drive assembly can drive the cutter holder to move the pelletizing blade rapidly up and down, achieving high-speed pelletizing.

[0014] In some embodiments, the drive assembly includes two vertically arranged rodless cylinders fixed to the frame, with drive blocks on the rodless cylinders fixed to the tool holder to drive the tool holder to move up and down.

[0015] In some embodiments, the drive unit is a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder.

[0016] In some embodiments, the number of air outlets is the same as the number of material guide holes, and the air outlets are located one-to-one with the upper right side of the material guide holes.

[0017] In some implementations, the motor is a servo motor or a stepper motor. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a plastic masterbatch pelletizing device according to one embodiment of the present invention;

[0019] Figure 2 for Figure 1 A structural diagram from another perspective;

[0020] Figure 3 This is a schematic diagram of the internal structure of a plastic masterbatch pelletizing device, with the receiving part hidden.

[0021] Figure 4 for Figure 3 A structural diagram from another perspective;

[0022] Figure label:

[0023] 1. Frame; 11. Slide chute; 2. Guide plate; 21. First guide chute; 22. Slide rod; 3. Limiting plate; 4. Knife holder; 41. Air inlet; 42. Air outlet; 43. Slider; 5. Pelletizer; 6. Drive assembly; 61. Motor; 62. Crankshaft; 63. Connecting rod; 7. Receiving component; 71. Baffle plate; a. Guide hole; 8. Drive unit. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] refer to Figures 1 to 4 As shown, the present invention provides a plastic masterbatch pelletizing device, comprising: a frame 1, a guide plate 2 fixedly connected to the frame 1, a limiting plate 3 disposed at the top right end of the guide plate 2, a pelletizing blade 5 disposed above the right end of the guide plate 2 and mounted on a blade holder 4, a drive assembly 6 for driving the blade holder 4 to rise and fall, and a receiving component 7 inclinedly disposed at the right end of the guide plate 2. When the pelletizing blade 5 moves down, it contacts the guide plate 2 or maintains a small gap. The right end of the guide plate 2 forms a fixed cutter. A baffle plate 71 is provided at the top left end of the receiving component 7. The baffle plate 71 can prevent the masterbatch that is cut and falls off from the receiving component 7 from being blown by the airflow and then bounced away.

[0028] The top of the guide plate 2 is provided with several first guide grooves 21 for guiding the color masterbatch to be transported laterally. The bottom of the limiting plate 3 is provided with several second guide grooves that correspond one-to-one with the first guide grooves 21. The first guide grooves 21 and the second guide grooves form a guide hole a. The right end of the limiting plate 3 is flush with the right end of the guide plate 2.

[0029] The blade holder 4 has an internal air chamber. The top of the blade holder 4 has an air inlet 41 that communicates with the air chamber. There are one, two, three or more air inlets 41, depending on the needs. The bottom of the blade holder 4 has several air outlets 42 that communicate with the air chamber and are located on the right side of the pelletizing blade 5. The air inlet 41 is used to connect to an air pump through an air pipe. The air pump introduces high-pressure gas into the air chamber. The high-pressure gas in the air chamber is output from the air outlets 41. The number of air outlets 42 is the same as the number of guide holes a, and the air outlets 42 are located one-to-one on the upper right side of the guide holes a.

[0030] The surface of the pelletizer 5 is provided with a gradient anti-stick coating, which includes a CrN base layer, a MoS2 / TiAlN intermediate layer and a fluorinated graphite surface layer, with a total thickness of 5-8 μm, which can be 5 μm, 7 μm or 8 μm, depending on the need.

[0031] The drive assembly 6 includes a motor 61 mounted on the frame 1, a crankshaft 62 rotatably engaged with the frame 1 and connected to the output shaft of the motor 61 via a coupling, and a connecting rod 63 with one end rotatably engaged with the crankshaft 62 and the other end fixedly connected to the top of the cutter holder 4. Two connecting rods 63 are provided. The motor 61 is a servo motor or a stepper motor. The sliders 43 at the front and rear ends of the cutter holder 4 are slidably engaged with the grooves 11 on the frame 1. The motor 61 drives the crankshaft 62 to rotate, which in turn drives the upper end of the connecting rod 63 to rotate circumferentially, thereby driving the cutter holder 4 to move the pelletizing blade 5 up and down. The outer wall of the slider 43 and the inner wall of the groove 11 are both coated with a nano-ceramic coating. In other embodiments, the drive assembly 6 includes two vertically arranged rodless cylinders fixedly connected to the frame 1. One of the two rodless cylinders is located inside the front side of the frame 1, and the other is located inside the rear side of the frame 1. The drive block on the rodless cylinder is fixedly connected to the cutter holder 4 to drive the cutter holder 4 to rise and fall.

[0032] The crankshaft 62 includes three shaft sections, a connecting body located at the ends of adjacent shaft sections, and a connecting shaft connected to the two connecting bodies. The shaft sections, connecting bodies, and connecting shaft are welded or integrally formed.

[0033] A sliding rod 22 is fixedly installed on the top of the guide plate 2. The sliding hole on the limiting plate 3 is vertically slidably engaged with the sliding rod 22. The limiting plate 3 is connected to a drive unit 8 that drives its lifting and lowering. The drive unit 8 is fixedly connected to the frame 1. The drive end of the drive unit 8 is fixedly connected to the limiting plate 3. The drive unit 8 is a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder.

[0034] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A plastic color master batch pelletizing device, characterized by, The utility model relates to a color masterbatch cutting device, including: The rack, the material guide plate fixed with the rack, the material limiting plate arranged at the top of the right end of the material guide plate, the cutting knife arranged above the right end of the material guide plate and installed on the cutter holder, the driving assembly driving the cutter holder to lift and the material receiving part obliquely arranged at the right end of the material guide plate, the top of the material guide plate is provided with a plurality of first material guide grooves for guiding the transverse conveying of the color masterbatch, the bottom of the material limiting plate is provided with a plurality of second material guide grooves corresponding to the first material guide grooves one by one, the first material guide groove and the second material guide groove constitute a material guide hole, the inside of the cutter holder is provided with an air cavity, the top is provided with an air inlet hole communicating with the air cavity, and the bottom is longitudinally spaced a plurality of air outlet holes communicating with the air cavity and located on the right side of the cutting knife.

2. The plastic color master batch cutting device according to claim 1, wherein, The left end top of the material receiving part is provided with a material blocking plate.

3. The plastic color master batch cutting device according to claim 1 or 2, characterized in that, The surface of the cutting knife is provided with a gradient anti-sticking coating.

4. The plastic color master batch pelletizing device according to claim 3, wherein, The gradient anti-sticking coating includes a CrN bottom layer, a MoS2 / TiAlN intermediate layer and a fluorinated graphite surface layer, and the total thickness is 5-8 microns.

5. The plastic color master batch pelletizing device according to claim 1, wherein, The top of the material guide plate is provided with a sliding rod, the sliding hole on the material limiting plate is vertically slidingly matched with the sliding rod, and the material limiting plate is connected with a driving unit driving it to lift.

6. The plastic color master batch pelletizing device according to claim 1, wherein, The driving assembly includes a motor installed on the rack, a crankshaft rotatingly matched with the rack and connected with the output shaft of the motor through a shaft coupling, and a connecting seat rotatingly matched with a connecting rod having one end rotatingly matched with the crankshaft and the other end fixedly connected with the top of the cutter holder, the sliding blocks at both ends of the cutter holder are slidingly matched with the sliding grooves on the rack, and the outer side wall of the sliding block and the inner side wall of the sliding groove are both provided with a nanometer ceramic coating.

7. The plastic color master batch pelletizing device according to claim 1, wherein, The driving assembly includes two vertical rodless air cylinders fixedly connected with the rack, and the driving blocks on the rodless air cylinders are fixedly connected with the cutter holder to drive the cutter holder to lift.

8. The plastic color master batch pelletizing device according to claim 5, wherein, The driving unit is an air cylinder, an electric cylinder or a hydraulic cylinder.

9. The plastic color master batch pelletizing device according to claim 1, wherein, The number of air outlet holes is consistent with the number of material guide holes, and the air outlet holes are one by one corresponding to the right side above the material guide hole.

10. The plastic color master batch pelletizing device according to claim 6, wherein, The motor is a servo motor or a stepping motor.

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