Cutting device for plastic products

Abstract

The utility model provides a cutting device for plastic products. Relates to the technical field of plastic product production equipment, and comprises a box body, a horizontal first cutting roller and a horizontal second cutting roller, the side wall of the box body is provided with a feeding port and a discharging port, and the feeding port is located above the discharging port; the first cutting roller and the second cutting roller are rotationally connected to the interior of the box body, cutting teeth used for cutting material strips are arranged on the peripheries of the two cutting rollers at intervals, and the distance between every two adjacent cutting teeth on the first cutting roller is larger than that between every two adjacent cutting teeth on the second cutting roller; a horizontal auxiliary cutting cylinder is arranged between the first cutting roller and the second cutting roller, the surface of the auxiliary cutting cylinder is smooth, the first cutting roller, the second cutting roller and the auxiliary cutting cylinder are located at the same height, and a cutting gap is reserved between every two cutting rollers; and the cutting position adjusting mechanism is used for controlling the material strip to be switched between the first cutting roller and the second cutting roller. The material particle cutting device has the effect of conveniently adjusting the material particle cutting size.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic product production equipment technical field especially relates to a kind of cutting device for plastic product. BACKGROUND

[0002] Plastic garbage needs to pass through sorting, crushing, melting, extrusion forming etc. process in recycling process, wherein after recycling, plastic garbage is formed into long strip after extrusion forming, these strip extrusion is after cooling and shaping, and the strip after cooling and shaping needs to be cut to shorten length, i.e. cut into smaller size granular, to facilitate screening classification.

[0003] When the conventional granulator cuts the strip, since the cutting tool inside it is fixed type, it can only cut out fixed length of granule, and cannot adjust the length of granule according to actual granulation demand. UTILITY MODEL CONTENTS

[0004] In order to improve the situation that conventional granulating device cannot adjust granulating length when cutting strip, the application provides a kind of cutting device for plastic product.

[0005] The application provides a kind of cutting device for plastic product, adopt following technical scheme:

[0006] A kind of cutting device for plastic product, including

[0007] Box, the box side wall is equipped with feed inlet and discharge port, the feed inlet is located above discharge port;

[0008] Horizontal first cutting roller and second cutting roller, are rotationally connected in box interior, and the outer periphery of two cutting rollers is spaced apart and is provided with cutting tooth for cutting strip, the spacing between two adjacent cutting teeth on the first cutting roller is greater than the spacing between two adjacent cutting teeth on the second cutting roller;

[0009] Horizontal auxiliary cutting cylinder is arranged between the first cutting roller and the second cutting roller, the surface of the auxiliary cutting cylinder is smooth, the first cutting roller, the second cutting roller and the auxiliary cutting cylinder are located at the same height, and cutting gap is left between two two;And

[0010] Cutting position adjusting mechanism is used to control the switching of strip between the first cutting roller and the second cutting roller.

[0011] Further, the cutting position adjusting mechanism comprises a pair of horizontally movable moving clamp rollers, the two moving clamp rollers are horizontally spaced apart and located above the auxiliary cutting cylinder, a gap between the two moving clamp rollers is used for the passage of the material strip, an upper position corresponding to the cutting gap between the first cutting roller and the auxiliary cutting cylinder is the first cutting position, an upper position corresponding to the cutting gap between the second cutting roller and the auxiliary cutting cylinder is the second cutting position, the moving clamp rollers are used to drive the material strip to switch between the first cutting position and the second cutting position, and the cutting position adjusting mechanism further comprises a driving assembly used to drive the moving clamp rollers to move.

[0012] Further, the driving assembly comprises a moving block and a driving gear, both ends of the moving clamp roller are rotationally connected to the moving block, and one of the moving blocks is provided with a driving rack on the top surface, the moving block is horizontally slidably connected to the inner wall of the box body, and the driving gear is engaged with the driving rack.

[0013] Further, a pair of upper and lower spaced apart guide rollers are rotationally connected to positions corresponding to the feeding port in the box body, and a gap between the two guide rollers is used for the passage of the material strip.

[0014] Further, a guide wall surface is arranged in the box body and corresponds to the guide rollers, the guide wall surface is an arc surface with an opening downward, one end of the guide wall surface extends toward the guide roller, the other end of the guide wall surface extends toward the moving clamp roller in the first cutting position, and a gap is left between the guide wall surface and the moving clamp roller.

[0015] Further, the box body is provided with a receiving portion below the first cutting roller, the receiving portion is inclinedly arranged, and the lower end of the receiving portion extends toward the discharging port.

[0016] Further, the receiving portion comprises an outer frame and a plurality of strip-shaped cylinders, the plurality of strip-shaped cylinders are arranged side by side and spaced apart, the length direction of the strip-shaped cylinder is consistent with the inclination direction of the receiving portion, and the interval width between the adjacent two strip-shaped cylinders is smaller than the outer diameter of the material particle.

[0017] Further, the box body is provided with a collecting box at the bottom, the collecting box is located below the receiving portion and is used to collect the cutting waste.

[0018] In summary, the present application has the following beneficial effects:

[0019] The two sets of cutting rollers are arranged in parallel in the box, the tooth spacing of the cutting teeth on the surfaces of the two sets of cutting rollers is different, so that the particles cut by the two sets of cutting rollers can have different lengths, and the size of the particles can be adjusted according to different production requirements; meanwhile, the strip is guided into the box by the guide roller and clamped and conveyed by the moving clamp roller, the moving clamp roller can move horizontally under the driving of the driving gear and the driving rack, when the cutting length of the particles needs to be switched, the moving clamp roller can drive the end of the strip to move to the corresponding cutting position, so that the switching of the cutting roller is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view of the internal structure of the cutting device according to the embodiment of the present application;

[0021] Figure 2 is a schematic view of the moving structure of the moving block according to the embodiment of the present application;

[0022] Figure 3 is Figure 1 the sectional view at A-A.

[0023] Legend: 1, box; 11, feed inlet; 12, discharge outlet; 13, auxiliary cutting cylinder; 14, cutting gap; 15, moving clamp roller; 16, driving gear; 17, guide roller; 18, guide wall surface; 2, strip; 3, first cutting roller; 4, second cutting roller; 5, cutting tooth; 6, moving block; 61, driving rack; 7, receiving part; 71, outer frame; 72, strip-shaped cylinder; 8, collection box. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described below in combination with the drawings. The following is a relatively preferred one of the multiple possible embodiments of the present application, which is intended to provide a basic understanding of the present application, but is not intended to identify the key or decisive elements or limit the scope of protection.

[0025] In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments can have different values.

[0026] Techniques, methods and equipment known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the specification when appropriate.

[0027] In the description of the present application, it should be noted that the circuits and electronic components and modules involved in the present application are all prior art, which can be realized by those skilled in the art without further description, and the content protected by the present application does not involve improvement of internal structure and method.

[0028] Further need to be explained is that unless otherwise specified and limited, the terms "mounting" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The embodiment of the present application provides a cutting device for plastic products, referring to Figure 1 The cutting device for plastic products comprises a box body 1, a cutting roller for cutting a material strip 2 is arranged in the box body 1, an inlet 11 and an outlet 12 are arranged on the side wall of the box body 1, which are used for the entry of the material strip 2 and the output of the cut material particles, the inlet 11 and the outlet 12 are arranged on different side walls of the box body 1 respectively, or can be arranged on the same side wall of the box body 1 together, as long as the inlet 11 is located above the outlet 12. In the embodiment of the present application, the inlet 11 and the outlet 12 are arranged on the opposite two side walls of the box body 1 respectively.

[0030] The cutting roller is provided with two groups arranged horizontally, which are a first cutting roller 3 and a second cutting roller 4, both ends of the two cutting rollers are rotatably connected to the inner wall of the box body 1, one end of the first cutting roller 3 and the second cutting roller 4 is respectively provided with a driving motor, the output shafts of the two driving motors are coaxially fixed with the end portions of the first cutting roller 3 and the second cutting roller 4 respectively, so that the two driving motors can respectively drive the two cutting rollers to rotate independently.

[0031] A horizontal auxiliary cutting cylinder 13 is arranged between the first cutting roller 3 and the second cutting roller 4, the surface of the auxiliary cutting cylinder 13 is smooth, and both ends thereof are rotatably connected to the inner wall of the box body 1, the first cutting roller 3, the second cutting roller 4 and the auxiliary cutting cylinder 13 are all located at the same horizontal height, and cutting gaps 14 are respectively left between any two of them. The outer periphery of the first cutting roller 3 and the second cutting roller 4 is spaced apart and provided with cutting teeth 5 for cutting the material strip 2, the cutting teeth 5 can be integrally formed with the cutting rollers, and the cutting gap 14 can be used for the entry of the material strip 2, after the material strip 2 enters the cutting gap 14, the cutting teeth 5 on the corresponding cutting roller cut the material strip 2.

[0032] The distance between two adjacent cutting teeth 5 on the first cutting roller 3 is greater than the distance between two adjacent cutting teeth 5 on the second cutting roller 4, so when the rod 2 is cut, the length of the rod 2 cut in the cutting gap 14 between the first cutting roller 3 and the auxiliary cutting cylinder 13 is greater than the length of the rod 2 cut in the cutting gap 14 between the second cutting roller 4 and the auxiliary cutting cylinder 13, that is, the rod 2 can be cut to two different lengths in the box 1 to meet different length requirements. In other embodiments of the present application, the number of cutting rollers arranged in the box 1 can be increased according to the actual size of the box 1, and all the cutting rollers in the box 1 can be arranged vertically or horizontally, and an auxiliary cutting cylinder 13 is arranged between every two cutting rollers, and the distance between the cutting teeth 5 on each cutting roller is increased or decreased in turn, so that more different sizes of the rod 2 can be cut in the cutting device.

[0033] Further, with reference to Figure 1 and Figure 2 In order to facilitate the movement of the rod 2 between different cutting rollers, the box 1 is also provided with a cutting position adjusting mechanism for controlling the switching of the rod between the first cutting roller 3 and the second cutting roller 4. The cutting position adjusting mechanism comprises a pair of movable pinch rollers 15 above the auxiliary cutting cylinder 13, which are horizontally movable. The two movable pinch rollers 15 are horizontally arranged and spaced apart, and the gap between the two movable pinch rollers 15 is used for the rod 2 to pass through. The movable pinch rollers 15 are provided with movable blocks 6 at both ends, and the two ends of the movable pinch rollers 15 are rotatably connected to the movable blocks 6, and the movable blocks 6 are horizontally slidably connected to the inner wall of the box 1. The cutting position adjusting mechanism further comprises a drive rack 61 and a drive gear 16, one of the movable blocks 6 is fixed with the drive rack 61, and the inner wall of the box 1 is rotatably connected with the drive gear 16 corresponding to the position of the drive rack 61, the drive gear 16 is engaged with the drive rack 61, and a drive motor is fixed outside the box 1 corresponding to the position of the drive gear 16, and the output shaft of the drive motor is coaxially fixed with the drive gear 16, so that the drive motor can drive the drive gear 16 to rotate.

[0034] The upper position of the cutting gap 14 between the first cutting roller 3 and the auxiliary cutting cylinder 13 in the box 1 is defined as the first cutting position, and the upper position of the cutting gap 14 between the second cutting roller 4 and the auxiliary cutting cylinder 13 is defined as the second cutting position. After the movable pinch rollers 15 pinch the rod 2, the drive motor drives the movable blocks 6 to move horizontally through the engagement of the drive gear 16 and the drive rack 61, and then drives the movable pinch rollers 15 to drive the rod 2 to switch between the first cutting position and the second cutting position, so that the rod 2 can accurately fall into the corresponding cutting gap 14 for cutting.

[0035] Further, in order to guide the material strip 2 into the box 1, a pair of upper and lower spaced guide rollers 17 are rotatably connected to the box 1 at a position corresponding to the material inlet 11. The gap between the two guide rollers 17 allows the material strip 2 to pass through. The surface of the guide rollers 17 can be provided with rough lines to increase the friction when in contact with the material strip 2.

[0036] A guide wall 18 is fixed to the box 1 at a position corresponding to the guide rollers 17. In the embodiment, the guide wall 18 is an arc surface with an opening downward. One end of the guide wall 18 extends towards the guide rollers 17, and the other end extends towards the moving clamp roller 15 when the material strip 2 is at the first cutting position. A gap is left between the guide wall 18 and the moving clamp roller 15 to allow the material strip 2 to bend freely.

[0037] The material strip 2 is guided by the guide rollers 17 into the box 1. Then, the end of the material strip 2 hits the guide wall 18. As the material strip 2 continues to be conveyed, the material strip 2 bends along the guide wall 18 and finally falls accurately between the two moving clamp rollers 15. If the moving clamp rollers 15 are fixed, the material strip 2 is cut at the first cutting position. If the moving clamp rollers 15 move horizontally, the material strip 2 is cut at the second cutting position.

[0038] Further, referring to Figure 1 and Figure 3 , the box 1 is provided with a receiving portion 7 and a collection box 8 below the first cutting roller 3. The receiving portion 7 is inclined and has a lower end extending towards the material outlet 12. The collection box 8 is located below the receiving portion 7 to collect small cutting waste. The receiving portion 7 includes an outer frame 71 and a plurality of strip-shaped cylinders 72. The number of strip-shaped cylinders 72 can be increased or decreased according to the actual size of the outer frame 71, as long as the inner space of the outer frame 71 is fully covered. The strip-shaped cylinders 72 are parallel and spaced apart, and the length direction of the strip-shaped cylinders 72 is consistent with the inclination direction of the receiving portion 7. Both ends of the strip-shaped cylinders 72 are rotatably connected to the outer frame 71. The spacing between adjacent strip-shaped cylinders 72 is smaller than the outer diameter of the material particles. When the material strip 2 is cut, waste with a smaller volume than the material particles will fall through the gap between the strip-shaped cylinders 72 and be collected in the collection box 8.

[0039] The implementation principle of the cutting device for plastic products is as follows: when the strip 2 is cut by the cutting rollers with different intervals between the two groups of cutting teeth 5, different lengths of granules can be generated, and the size of the granules can be adjusted according to different production requirements; meanwhile, the strip 2 is guided into the box body 1 by the guide roller 17 and clamped and conveyed by the moving clamp roller 15, the moving clamp roller 15 can move horizontally under the drive of the driving gear 16 and the driving rack 61, and when the cutting length of the granules needs to be switched, the moving clamp roller 15 can drive the end of the strip 2 to move to the corresponding cutting position, so as to realize the switching of the cutting roller.

[0040] In this document, the front, back, up, down and other orientation words are defined with the parts in the drawings and the positions of the parts relative to each other, just to express the technical solution clearly and conveniently. It should be understood that they are relative concepts, which can be changed accordingly according to different ways of use and placement, and the use of the orientation words should not limit the scope of the application.

[0041] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can be combined with each other.

[0042] The above is only the preferred embodiment of the application, and is not used to limit the application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A cutting apparatus for plastic articles, characterized by: Comprising a box, a feeding port and a discharging port are arranged on the side wall of the box, and the feeding port is located above the discharging port; a horizontal first cutting roller and a horizontal second cutting roller are rotationally connected inside the box, and cutting teeth are arranged on the outer periphery of the two cutting rollers for cutting the material strip, the distance between two adjacent cutting teeth on the first cutting roller is greater than the distance between two adjacent cutting teeth on the second cutting roller; a horizontal auxiliary cutting cylinder is arranged between the first cutting roller and the second cutting roller, the surface of the auxiliary cutting cylinder is smooth, the first cutting roller, the second cutting roller and the auxiliary cutting cylinder are located at the same height, and cutting gaps are left between any two of them; and a cutting position adjusting mechanism is used to control the switching of the material strip between the first cutting roller and the second cutting roller.

2. The apparatus according to claim 1, wherein: The cutting position adjusting mechanism comprises a pair of movable moving clamping rollers, the two moving clamping rollers are horizontally spaced apart and located above the auxiliary cutting cylinder, the gap between the two moving clamping rollers is used for the material strip to pass through, the position above the cutting gap between the first cutting roller and the auxiliary cutting cylinder is the first cutting position, and the position above the cutting gap between the second cutting roller and the auxiliary cutting cylinder is the second cutting position, the moving clamping rollers are used to drive the material strip to switch between the first cutting position and the second cutting position, and the cutting position adjusting mechanism further comprises a driving assembly for driving the moving clamping rollers to move.

3. The apparatus according to claim 2, wherein: The driving assembly comprises a moving block and a driving gear, and the two ends of the moving clamping roller are rotationally connected to the moving block, one of the moving blocks is provided with a driving rack on the top surface, the moving block is horizontally slidably connected to the inner wall of the box, and the driving gear is engaged with the driving rack.

4. The apparatus according to claim 1, wherein: A pair of guide rollers are rotationally connected to the position corresponding to the feeding port in the box, and the gap between the two guide rollers is used for the material strip to pass through.

5. The apparatus according to claim 4, wherein: A guide wall surface is arranged in the box corresponding to the guide rollers, the guide wall surface is an arc surface with an opening downward, one end of the guide wall surface extends toward the guide roller, and the other end of the guide wall surface extends toward the moving clamping roller in the first cutting position, and a gap is left between the guide wall surface and the moving clamping roller.

6. The apparatus according to claim 1, wherein: An accommodating portion is arranged below the first cutting roller in the box, the accommodating portion is arranged obliquely, and one end of the accommodating portion with a lower height extends toward the discharging port.

7. The apparatus according to claim 6, wherein: The accommodating portion comprises an outer frame and a plurality of strip-shaped cylinders, the plurality of strip-shaped cylinders are arranged side by side and spaced apart, the length direction of the strip-shaped cylinder is consistent with the oblique direction of the accommodating portion, and the interval width between two adjacent strip-shaped cylinders is smaller than the outer diameter of the material particle.

8. The apparatus according to claim 6, wherein: A collecting box is arranged at the bottom of the box, and the collecting box is located below the accommodating portion and is used for collecting cutting waste.

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