Plastic processing cut-off machine

Abstract

The utility model discloses a cut-off machine for plastic processing, and relates to the technical field of plastic processing. The device comprises a cutting mechanism, a mounting box is fixed on the rear side of the upper wall of a bottom plate, a rotating rod is arranged on the upper side in the mounting box, a rectangular groove is axially formed in the peripheral wall of the rotating rod, a cutting tool is arranged outside a mounting sleeve in a clearance fit mode, and a bolt matched with a threaded hole is arranged on the corresponding mounting sleeve in front of the cutting tool. According to the plastic cutting-off device, the distance between every two adjacent cutting-off tools can be adjusted, so that the specification of cut-off plastic is adjusted, the conveying rollers are driven by the electric telescopic rods to move so as to adapt to the to-be-cut-off plastic with different thicknesses, and the problems that in the prior art, due to the fact that the distance between the cutting-off tools cannot be adjusted, the cutting-off tools cannot be adjusted are solved. And in the prior art, only to-be-cut plastics with two thicknesses can be cut off by disassembling and assembling a second connecting rod, so that the limitation during use is large.

Description

Technical Field

[0001] This utility model belongs to the field of plastic processing technology, and in particular relates to a plastic processing cutting machine. Background Technology

[0002] Plastic processing is the process of transforming plastic raw materials into finished products. In the process of plastic processing, in order to cut plastic materials into the required shapes and sizes, plastic processing cutting machines are needed to cut the plastic. Common cutting methods include mechanical cutting, laser cutting, thermal cutting, and waterjet cutting. Among them, mechanical cutting is one of the most common methods for cutting plastic, which involves cutting the plastic by applying a cutting blade to the part to be cut.

[0003] A search revealed that patent announcement number CN215511865U, published on January 14, 2022, discloses a cutting machine for plastic templates, belonging to the field of plastic template technology. The machine includes a support frame, a cutting blade, a first drive mechanism, a rotating cover, a support part, and a second drive mechanism. The cutting blade is rotatably connected to the support frame, with its upper end passing through a mounting hole and protruding from the upper surface of the support frame. Two extrusion rollers are provided on the lower surface of the rotating cover, each with a pointed protrusion. The support part consists of a first connecting rod and a second connecting rod arranged from top to bottom. The second drive mechanism is connected to the extrusion rollers and drives their rotation. This plastic template cutting machine, by adjusting the height of the extrusion rollers with the first and second connecting rods, and under the action of the cutting blade, can cut both thicker and thinner templates, improving its efficiency and application range.

[0004] Existing technology uses multiple parallel-spaced cutting blades in a rotating state to cut plastic. However, in actual use, the distance between the cutting blades cannot be adjusted, making it impossible to adjust the size of the plastic being cut. Furthermore, while existing technology can cut two thicknesses of plastic by detaching and assembling the second connecting rod, in practice, this only allows for cutting two thicknesses of plastic, resulting in significant limitations in use. Therefore, we provide a plastic processing cutting machine to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a plastic processing cutting machine, which can adjust the distance between two adjacent cutting blades to adjust the specifications of the plastic to be cut, and uses an electric telescopic rod to drive the conveyor roller to move to adapt to plastics of different thicknesses to be cut. This solves the problems of existing technology, which cannot adjust the distance between the cutting blades, thus making it impossible to adjust the specifications of the plastic to be cut, and existing technology, which can only cut plastics of two thicknesses by disassembling and assembling the second connecting rod, resulting in great limitations in use.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a plastic processing cutting machine, including a cutting mechanism. The cutting mechanism includes a base plate, and a mounting box is fixed to the rear side of the upper wall of the base plate. A rotating rod is provided on the upper side inside the mounting box. A rectangular groove is axially formed on the outer peripheral wall of the rotating rod. A plurality of threaded holes are equidistantly formed on the rotating rod at the position of the rectangular groove. A plurality of mounting sleeves are provided with clearance fit on the outer side of the rotating rod. A cutting blade is provided with clearance fit on the outer side of the mounting sleeve. The upper side of the cutting blade is located outside the mounting box. A bolt adapted to the threaded hole is provided on the mounting sleeve corresponding to the front of the cutting blade.

[0008] A conveying mechanism is provided above the cutting mechanism. The conveying mechanism includes a top plate. An electric telescopic rod is fixed at the middle position of the lower wall of the top plate. A mounting frame is fixed at the lower end of the electric telescopic rod. Conveying rollers are provided on both the left and right sides inside the mounting frame.

[0009] The present invention is further configured such that a motor is fixed at the position of the rotating rod corresponding to the rear wall of the mounting box, and the power output shaft of the motor is fixedly connected to the rotating rod; and a baffle is fixed at the front wall of the cutting blade corresponding to the outside of the mounting sleeve.

[0010] The present invention is further configured such that the cutting blade is fixedly connected to the baffle by screws, and a boss adapted to the rectangular groove is fixed at the position of the rectangular groove corresponding to the inner peripheral wall of the mounting sleeve.

[0011] The present invention is further configured such that the front wall of the mounting box is provided with a box door, and a positioning sleeve is provided with an external clearance fit at the front end of the rotating rod, and the positioning sleeve is rotatably connected to the box door through a bearing.

[0012] The present invention is further configured such that an electric push rod is fixed to the front wall of the box door, a side plate is fixed to the front end of the electric push rod, and the side plate is fixedly connected to the bottom plate.

[0013] The present invention is further configured such that connecting plates are fixed on both the front and rear sides of the left wall of the top plate and both the front and rear sides of the right wall of the top plate, and the connecting plates are fixedly connected to the mounting box.

[0014] The present invention is further configured such that guide sleeves are fixed at the front and rear of the electric telescopic rod corresponding to the lower wall of the top plate, and guide rods are provided in the internal gap of the guide sleeves, and the guide rods are fixedly connected to the mounting frame.

[0015] The present invention is further configured such that a connecting rod is fixed at the middle position of both the front and rear side walls of the conveying roller, and the connecting rod is rotatably connected to the mounting frame through a bearing, and an anti-slip sleeve is fixed to the outside of the conveying roller.

[0016] The present invention is further configured such that an electric motor is fixed to the rear wall of the mounting bracket, and the power output shaft of the electric motor is fixedly connected to the corresponding connecting rod. Pulleys are fixed on the two connecting rods located on the rear side, and the pulleys are connected to the other pulley for belt drive via a conveyor belt.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting up an installation sleeve, bolts, rectangular grooves, and threaded holes, allows the cutting blade to be adjusted. By disengaging the bolt in front of the cutting blade to be adjusted from the corresponding threaded hole, and moving the cutting blade to be adjusted to a suitable distance from its adjacent cutting blade, the bolt is then moved into the corresponding threaded hole to fix the cutting blade to be adjusted relative to the rotating rod. This achieves the purpose of adjusting the distance between two adjacent cutting blades according to specifications. In addition, the number of cutting blades installed outside the rotating rod can be selected by disassembling and assembling the cutting blades. This solves the problem in the prior art that the distance between the cutting blades cannot be adjusted, thus preventing the adjustment of the cutting plastic specifications.

[0019] 2. This utility model, by setting up an electric telescopic rod, moves the mounting frame by controlling the operation of the electric telescopic rod, which in turn moves both conveying rollers until the anti-slip sleeves on the outside of both conveying rollers are in contact with the surface of the plastic to be cut, thus conveying the plastic to be cut. Compared with the prior art, since the electric telescopic rod can stop the conveying rollers at any height within the movable range, it can smoothly convey plastics of various thicknesses, reducing the limitations in use. It solves the problem that the prior art, by disassembling and assembling the second connecting rod, can only cut plastics of two thicknesses, resulting in significant limitations in use.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an overall structural diagram of a plastic processing cutting machine.

[0023] Figure 2 This is a structural diagram of the cutting mechanism.

[0024] Figure 3 for Figure 2 Partial structural diagram of the middle part.

[0025] Figure 4 for Figure 3 Partial structural diagram of the middle part.

[0026] Figure 5 This is a structural diagram of the conveying mechanism.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Cutting Mechanism; 101. Mounting Box; 101a. Motor; 102. Cutting Blade; 102a. Screw; 103. Box Door; 103a. Positioning Sleeve; 104. Rotating Rod; 104a. Threaded Hole; 104b. Rectangular Groove; 105. Electric Push Rod; 106. Base Plate; 106a. Side Plate; 107. Mounting Sleeve; 107a. Baffle; 107b. Bolt; 107c. Boss; 2. Conveying Mechanism; 201. Top Plate; 201a. Electric Telescopic Rod; 201b. Guide Sleeve; 201c. Connecting Plate; 202. Mounting Frame; 202a. Guide Rod; 203. Conveying Roller; 203a. Connecting Rod; 203b. Anti-slip Sleeve; 204. Conveyor Belt; 205. Pulley; 206. Motor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1-4This utility model is a plastic processing cutting machine, including a cutting mechanism 1. The cutting mechanism 1 includes a base plate 106, and a mounting box 101 is fixed to the rear side of the upper wall of the base plate 106. The front side of the mounting box 101 is open, and a rotating rod 104 is provided on the upper side inside the mounting box 101 to provide a mounting platform for the mounting sleeve 107. A rectangular groove 104b is axially formed on the outer peripheral wall of the rotating rod 104. The cooperation between the rectangular groove 104b and the boss 107c allows the mounting sleeve 107 to rotate when the rotating rod 104 rotates. The position of the rectangular groove 104b corresponds to the position of the rotating rod 104. The rotating rod 104 is provided with several threaded holes 104a. Several mounting sleeves 107 are provided with a clearance fit on the outside of the rotating rod 104. A cutting blade 102 is provided with a clearance fit on the outside of the mounting sleeve 107. The cutting blade 102 is used to cut the plastic by rotating at high speed. The upper side of the cutting blade 102 is located outside the mounting box 101. The mounting sleeve 107 corresponding to the front of the cutting blade 102 is provided with a bolt 107b that is adapted to the threaded hole 104a. The bolt 107b is threadedly connected in different threaded holes 104a to adjust the distance between two adjacent cutting blades 102.

[0032] Specifically, a motor 101a is fixed to the rear wall of the mounting box 101 at the location of the rotating rod 104 to drive the rotating rod 104 to rotate, and the power output shaft of the motor 101a is fixedly connected to the rotating rod 104. A baffle 107a is fixed to the front wall of the cutting blade 102 corresponding to the outside of the mounting sleeve 107, and the cutting blade 102 is mounted on the side wall of the baffle 107a by screws 102a.

[0033] The cutting blade 102 is fixedly connected to the baffle 107a by screws 102a. At the location of the rectangular groove 104b, a boss 107c that matches the rectangular groove 104b is fixed on the inner peripheral wall of the mounting sleeve 107. The boss 107c is used to make the cutting blade 102 rotate when the rotating rod 104 rotates without slipping.

[0034] The front wall of the mounting box 101 is provided with a door 103. A positioning sleeve 103a is provided on the external clearance of the front end of the rotating rod 104. The positioning sleeve 103a can limit the front end of the rotating rod 104 to prevent the rotating rod 104 from bending due to abnormal force. The positioning sleeve 103a is rotatably connected to the door 103 through a bearing.

[0035] An electric push rod 105 is fixed to the front wall of the door 103 for moving the door 103. A side plate 106a is fixed to the front end of the electric push rod 105, and the side plate 106a is fixedly connected to the bottom plate 106.

[0036] The operation process of this embodiment is as follows: According to the actual cutting specifications, the electric push rod 105 can be controlled to retract to drive the box door 103 forward until the positioning sleeve 103a disengages from the front end of the rotating rod 104. At this time, the cutting blade 102 is operated to make the boss 107c on the mounting sleeve 107 connected to the cutting blade 102 enter the rectangular groove 104b. After the mounting sleeve 107 is moved to a suitable position, the corresponding bolt 107b is operated to enter the corresponding threaded hole 104a, so that the bolt 107b is threadedly connected to the rotating rod 104 to achieve relative fixation between the cutting blade 102 and the rotating rod 104. The above operation is repeated until a suitable number of cutting blades 102 are installed on the outside of the rotating rod 104. Finally, the electric push rod 105 is controlled to extend to drive the box door 103 to move towards the rotating rod 104 until the positioning sleeve 103a is fitted on the outside of the front end of the rotating rod 104 to complete the installation.

[0037] Example 2

[0038] Please see Figure 1 and 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the first embodiment in that: a conveying mechanism 2 is provided above the cutting mechanism 1. The conveying mechanism 2 includes a top plate 201. An electric telescopic rod 201a is fixed at the middle position of the lower wall of the top plate 201 for adjusting the height of the conveying roller 203. A mounting frame 202 is fixed at the lower end of the electric telescopic rod 201a. The mounting frame 202 is U-shaped. Conveying rollers 203 are provided on both the left and right sides inside the mounting frame 202 for conveying the plastic to be processed.

[0039] Specifically, connecting plates 201c are fixed on the front and rear sides of the left wall of the top plate 201 and the front and rear sides of the right wall of the top plate 201, and the connecting plates 201c are fixedly connected to the mounting box 101. The above arrangement, together with the connecting plates 201c, allows the top plate 201 to be relatively fixed to the mounting box 101.

[0040] Guide sleeves 201b are fixed to the front and rear of the electric telescopic rod 201a, corresponding to the lower wall of the top plate 201. A guide rod 202a is provided in the internal clearance of the guide sleeve 201b, and the guide rod 202a is fixedly connected to the mounting bracket 202. With the above arrangement, the top plate 201 can only move up and down without tilting, through the cooperation of the guide sleeve 201b and the guide rod 202a.

[0041] Connecting rods 203a are fixed at the middle positions of the front and rear side walls of the conveying roller 203, so that the conveying roller 203 can rotate relative to the mounting frame 202. The connecting rods 203a are rotatably connected to the mounting frame 202 through bearings. Anti-slip sleeves 203b are fixed to the outside of the conveying roller 203. The anti-slip sleeves 203b can be made of high-friction rubber material to increase the friction between the conveying roller and the plastic. Meanwhile, the upper wall of the mounting box 101 is a smooth plane.

[0042] A motor 206 is fixed to the rear wall of the mounting frame 202 to drive the corresponding conveyor roller 203 to rotate. The power output shaft of the motor 206 is fixedly connected to the corresponding connecting rod 203a. Pulleys 205 are fixed on the two connecting rods 203a located at the rear. The pulleys 205 are connected to the other pulley 205 through the conveyor belt 204. In the above configuration, the conveyor belt 204 is also a belt. By utilizing the cooperation between the conveyor belt 204 and the pulleys 205, the motor 206 can drive the two conveyor rollers 203 to rotate in the same direction when it is working.

[0043] The remaining structure is the same as in Example 1;

[0044] The operation process of this embodiment is as follows: When cutting the plastic, the electric telescopic rod 201a is retracted to drive the mounting frame 202 and the conveying roller 203 to move upward. At this time, the plastic is located below the conveying roller 203. Then, the electric telescopic rod 201a is extended to drive the conveying roller 203 to move downward until the anti-slip sleeve 203b comes into contact with the plastic. At this time, the motor 206 and the motor 101a are both working. The working motor 101a drives the rotating rod 104 to rotate, which causes the cutting blade 102 to rotate. The working motor 206 drives the corresponding conveying roller 203 to rotate. At this time, with the cooperation of the conveyor belt 204 and the pulley 205, the two conveying rollers 203 rotate in the same direction, realizing the conveying of the plastic and the cut plastic.

[0045] Furthermore, this plastic processing cutting machine does not limit the rotation direction of the power output shaft of motor 101a. However, in order to ensure that the plastic to be cut can move normally towards the other conveyor roller 203, when the conveyor roller 203 located on the left is used as the feed roller, the conveyor roller 203 rotates counterclockwise, which allows the plastic to be cut to move to the right and pass through the cutting blade 102 for cutting. When the conveyor roller 203 located on the right is used as the feed roller, the conveyor roller 203 rotates clockwise, which allows the plastic to be cut to move to the left and pass through the cutting blade 102 for cutting. At the same time, the motor 101a, motor 206, electric push rod 105 and electric telescopic rod 201a in this plastic processing cutting machine are all electrically connected to the controller through conductive wires. The controller is electrically connected to an external power supply through conductive wires. The motor 101a, motor 206, electric push rod 105 and electric telescopic rod 201a are all existing technologies, and their models are not limited here.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastics processing guillotine comprising a cutting mechanism (1), characterised in that: The cutting mechanism (1) includes a bottom plate (106), the rear side of the upper wall of the bottom plate (106) is fixedly connected with a mounting box (101), the upper side of the inside of the mounting box (101) is provided with a rotating rod (104), the outer circumferential wall of the rotating rod (104) is axially provided with a rectangular groove (104b), a plurality of threaded holes (104a) are equidistantly arranged on the rotating rod (104) at the position of the rectangular groove (104b), a plurality of mounting sleeves (107) are arranged in clearance fit on the outside of the rotating rod (104), a cutting knife (102) is arranged in clearance fit on the outside of the mounting sleeve (107), and the upper side of the cutting knife (102) is located outside the mounting box (101); a plurality of bolts (107b) are arranged on the mounting sleeve (107) corresponding to the front of the cutting knife (102). The cutting mechanism (1) is provided with a conveying mechanism (2) above, the conveying mechanism (2) includes a top plate (201), the middle position of the lower wall of the top plate (201) is fixedly connected with an electric telescopic rod (201a), the lower end of the electric telescopic rod (201a) is fixedly connected with a mounting frame (202), and the left and right sides of the inside of the mounting frame (202) are both provided with conveying rollers (203).

2. A plastic processing cut-off machine according to claim 1, characterized in that: The rear wall of the mounting box (101) is fixedly connected with a motor (101a) at the position of the rotating rod (104), the power output shaft of the motor (101a) is fixedly connected with the rotating rod (104), and the front wall of the cutting knife (102) is fixedly connected with a baffle (107a) outside the mounting sleeve (107).

3. A plastic processing cut-off machine according to claim 2, characterized in that: The cutting knife (102) is fixedly connected with the baffle (107a) through a screw (102a), the inner circumferential wall of the mounting sleeve (107) is fixedly connected with a boss (107c) corresponding to the position of the rectangular groove (104b), and the boss (107c) is matched with the rectangular groove (104b).

4. A plastic processing cut-off machine according to claim 1, characterized in that: The front wall of the mounting box (101) is provided with a box door (103), the outside of the front end of the rotating rod (104) is arranged in clearance fit with a positioning sleeve (103a), and the positioning sleeve (103a) is rotationally connected with the box door (103) through a bearing.

5. A plastics processing cut-off machine according to claim 4, characterised in that: The front wall of the box door (103) is fixedly connected with an electric push rod (105), the front end of the electric push rod (105) is fixedly connected with a side plate (106a), and the side plate (106a) is fixedly connected with the bottom plate (106).

6. A plastic processing cut-off machine according to claim 1, characterized in that: The front and rear sides of the left wall of the top plate (201) and the front and rear sides of the right wall of the top plate (201) are both fixedly connected with connecting plates (201c), and the connecting plates (201c) are fixedly connected with the mounting box (101).

7. A plastic processing cut-off machine according to claim 1, characterized in that: The front and rear sides of the lower wall of the top plate (201) are both fixedly connected with guide sleeves (201b), the inside of the guide sleeve (201b) is arranged in clearance fit with a guide rod (202a), and the guide rod (202a) is fixedly connected with the mounting frame (202).

8. A plastic processing cut-off machine according to claim 7, characterized in that: The connecting rods (203a) are fixed at the middle positions of the side walls on the front and back sides of the conveying roller (203), and the connecting rods (203a) are rotatably connected with the mounting frame (202) through bearings.

9. A plastic processing cut-off machine according to claim 8, characterized in that: A motor (206) is fixed to the back wall of the mounting frame (202), and the power output shaft of the motor (206) is fixedly connected with the corresponding connecting rod (203a). The pulleys (205) are fixed on the two connecting rods (203a) on the back side, and the pulleys (205) are belt transmissionally connected with another pulley (205) through a conveying belt (204).

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