Plastic pen cut-off machine

Abstract

The utility model provides a cut-off machine for plastic pens. The cut-off machine comprises a feeding positioning device and a cut-off device. The feeding positioning device comprises two conveying belts which are arranged up and down at an interval, and a first limiting channel is formed in the space between the two conveying belts; the feeding end and the discharging end of the first limiting channel are each provided with two adjusting wheels, the two adjusting wheels are horizontally arranged in a spaced mode front and back, and a gap between the two adjusting wheels forms a second limiting channel corresponding to the first limiting channel. The cutting device comprises a cutter rotating shaft, and a plurality of circular saw blade cutters are evenly fixed to the cutter rotating shaft. The feeding positioning device can perform transverse and longitudinal positioning, is high in positioning precision and good in stability, can be adjusted, and can adapt to pens with different pen diameters; when the cutting-off device is used for cutting off, clamping and fixing are conducted through the clamping and fixing device, stability is good, cutting-off quality is good, multiple sections of pens can be cut off at a time through the multiple saw blade cutters, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of pen production equipment, and in particular to a plastic pen cutting machine. Background Technology

[0002] Plastic pens are common writing tools in daily life. During the production process, plastic pens are first extruded at a high temperature using an extruder, then cooled, and finally cut into fixed lengths by a cutting machine. If the positioning is inaccurate or the stability is poor during cutting, resulting in offset or slippage, it will affect the cutting quality, causing the end face of the plastic pen to tilt and reducing the yield rate. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a plastic pen cutting machine that features precise positioning, high stability, and produces high-quality plastic pens with a high yield rate.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A plastic pen cutting machine includes a feeding and positioning device and a cutting device. The feeding and positioning device includes two conveyor belts arranged vertically and horizontally. At least one conveyor belt can adjust the distance between the two conveyor belts via a first adjusting device. The space between the two conveyor belts forms a first limiting channel. A horizontal floating pressure plate is provided on the horizontal middle of the conveyor belt away from the first limiting channel. A first floating adjusting device is connected to the floating pressure plate to press the floating pressure plate against the conveyor belt. Two adjusting wheels are respectively arranged at the feeding end and the discharge end of the first limiting channel. The two adjusting wheels are arranged horizontally and horizontally, and their positions are adjusted by a second adjusting device. The gap between the two adjusting wheels forms a second limiting channel corresponding to the first limiting channel. The cutting device includes a cutting blade shaft with a plurality of circular saw blades evenly fixed on it. It also includes a clamping and fixing device for clamping and fixing the object to be cut during cutting. The cutting device is mounted on a movable platform that can move horizontally left and right and horizontally back and forth.

[0006] Preferably, each of the two conveyor belts is fitted with a main drive wheel and a driven drive wheel. The first adjustment device includes a longitudinal mounting plate and a fixed support plate. The mounting plate is fixed to the fixed support plate by a first bolt. The mounting plate and / or the fixed support plate are provided with a first adjustment groove that cooperates with the first bolt to adjust the height of the mounting plate. The main drive wheel and the driven drive wheel of each conveyor belt are rotatably connected to the mounting plate. At least one mounting plate is mounted on the fixed support plate with adjustable height. The two main drive wheels are driven by the same drive motor or each is driven by a drive motor.

[0007] Preferably, the two main drive wheels are connected to the same drive motor. One of the main drive wheels is fixed to the shaft of the drive motor. A first transmission gear is fixedly connected to the shaft of the drive motor, and a first adjusting plate is rotatably connected to it. A first rotating shaft is rotatably connected to the first adjusting plate. A second transmission gear and a third transmission gear are fixedly mounted on the first rotating shaft at a distance from each other. The other end of the first rotating shaft is rotatably connected to the second adjusting plate. An arc-shaped adjusting groove is provided on the end of the second adjusting plate away from the first rotating shaft. The second adjusting plate also has a shaft hole through which the shaft of the drive motor passes. The other main drive wheel is fixedly connected to a fourth transmission gear through the second rotating shaft. The second transmission gear meshes with the first transmission gear, and the third transmission gear meshes with the fourth transmission gear.

[0008] Preferably, the two ends of the floating pressure plate are fixedly connected to upward-curved arc-shaped end plates.

[0009] Preferably, the first floating adjustment device includes at least one slide rod vertically fixedly connected to the floating pressure plate. The slide rod is located on the surface of the floating pressure plate away from the first limiting channel. A spring is sleeved on the slide rod. One end of the slide rod away from the first limiting channel is slidably sleeved in a limiting plate. The spring is located between the limiting plate and the floating pressure plate.

[0010] Preferably, the adjusting wheel includes at least one coaxial sub-adjusting wheel from top to bottom, the second adjusting device includes an adjusting wheel shaft, the sub-adjusting wheel is rotatably connected to the upper part of the adjusting wheel shaft, the lower part of the adjusting wheel shaft is an external thread section, the external thread section is sleeved with at least two adjusting nuts, and also includes adjusting grooves opened horizontally front and back, the external thread section is located in the adjusting grooves, and the adjusting nuts are located above and below the adjusting grooves respectively.

[0011] Preferably, the clamping and fixing device includes a fixed clamping bar and a movable clamping bar that cooperate with each other. The movable clamping bar is driven by a clamping bar driving device that drives the movable clamping bar to move closer to or away from the fixed clamping bar. The clamping bar driving device is one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. The movable clamping bar is also connected to a guide device, which includes a slide rail and a slider. The slide rail or slider is fixed on the movable clamping bar.

[0012] Preferably, the cutting device is also covered with a dust suction hood, which has at least one dust suction port.

[0013] Preferably, an intermediate guide device is further provided between the feeding positioning device and the cutting device. The intermediate guide device includes at least one guide wheel assembly, a guide tube, and a first pressure roller assembly. The guide wheel assembly includes driven guide wheels and driving guide wheels arranged at intervals. The distance between the driven guide wheels and the driving guide wheels is adjusted by a third adjustment device. A guide groove is formed on the outer circumferential side of the driven guide wheel, and the outer circumferential side of the driving guide wheel is flat. The guide tube includes a tube body with a circular channel penetrating both ends in the middle. The inlet end of the circular channel is a conical opening that is larger on the outside and smaller on the inside. A position adjustment mounting plate is also fixed on the tube body, and a position adjustment groove is formed on the position adjustment mounting plate. The first pressure roller assembly includes a limiting base plate with a limiting groove penetrating both ends on the upper surface of the limiting base plate. At least one horizontally spaced pressure roller is provided above the limiting groove. The assembly also includes a second floating adjustment device that presses the pressure rollers into the limiting groove.

[0014] Preferably, the third adjustment device includes a longitudinal third support plate and a third sliding plate. The third sliding plate is fixed to the third support plate by a third bolt. The third sliding plate and / or the third support plate are provided with a third adjustment groove that matches the third bolt for adjusting the height of the third sliding plate. The active guide wheel is rotatably connected to the third support plate and is driven by a guide wheel drive motor. The driven guide wheel is rotatably connected to the third sliding plate. The second floating adjustment device includes a second rotating swing arm. One end of the second rotating swing arm is rotatably connected to the second housing. The other end of the second rotating swing arm is vertically fixed to a pressure wheel shaft. The end of the pressure wheel shaft is rotatably connected to the pressure wheel. The device also includes a second spring plate or a second spring for rotating and pressing down the second rotating swing arm. A detachable second cover plate is also installed on the second housing. The second cover plate is provided with a second arc-shaped guide groove for guiding the movement of the pressure wheel shaft.

[0015] Preferably, the discharge end of the cutting device is further provided with a discharge conveying device, which includes a U-shaped limiting discharge channel, a discharge conveyor belt is provided in the U-shaped limiting discharge channel, a discharge main drive wheel and at least one discharge driven wheel are sleeved in the discharge conveyor belt, the U-shaped limiting discharge channel is provided with at least one horizontally spaced discharge pressure roller, and also includes a third floating adjustment device for pressing the discharge pressure roller toward the U-shaped limiting discharge channel.

[0016] Preferably, the third floating adjustment device includes a third rotating swing arm, one end of which is rotatably connected to the third housing, and the other end of which is vertically fixed to a discharge pressure roller shaft. The end of the discharge pressure roller shaft is rotatably connected to a discharge pressure roller. It also includes a third spring plate or a third spring for rotating and pressing the third rotating swing arm downward. A detachable third cover plate is also installed on the third housing, and a third arc-shaped guide groove is provided on the third cover plate to guide the movement of the discharge pressure roller.

[0017] The beneficial effects of this utility model are as follows: The feeding and positioning device of this utility model can perform horizontal and vertical positioning with high positioning accuracy and good stability. It is also adjustable to adapt to pens of different diameters. The cutting device clamps and fixes the pen during cutting, ensuring good stability and cutting quality. Multiple saw blades can cut multiple pen segments at once, resulting in high efficiency. Therefore, the pens produced by this utility model are of high quality, have a high yield rate, and high production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is the front view of the feeding and positioning device;

[0021] Figure 3 This is an elevation view of the feeding and positioning device;

[0022] Figure 4 This is a top view of the feeding and positioning device from a second angle.

[0023] Figure 5 This is a top view of the feeding and positioning device from the third angle.

[0024] Figure 6 This is an elevation view of the guide wheel assembly;

[0025] Figure 7 This is an elevation view of the guide wheel assembly from the second angle.

[0026] Figure 8 This is an elevation view of the guide tube;

[0027] Figure 9 This is an elevation view of the guide tube from the second angle.

[0028] Figure 10 An elevation view of the first pressure roller assembly;

[0029] Figure 11 for Figure 10 A diagram showing the removal of the second cover plate;

[0030] Figure 12 This is an elevation view of the cutting device;

[0031] Figure 13This is a rear view of the cutting device;

[0032] Figure 14 This is an elevation view of the cutting device from the second angle;

[0033] Figure 15 An elevation view of the cutting device after the dust cover has been removed;

[0034] Figure 16 This is an elevation view of the discharge conveyor device;

[0035] Figure 17 for Figure 16 A schematic diagram after removing the third cover plate and the inclined discharge chute.

[0036] The image includes the following symbols:

[0037] 1. Feeding positioning device, 2. Cutting device, 3. Intermediate guiding device, 5. Discharge conveying device, 6. Machine base, 7. Long plastic pen;

[0038] Conveyor belt 11, first limit channel 12, floating pressure plate 13, adjusting wheel 14, second limit channel 15;

[0039] Main drive wheel 111, driven wheel 112, drive motor 113, first transmission gear 114, first adjusting plate 115, first rotating shaft 116, second transmission gear 117, third transmission gear 118, second adjusting plate 119, second rotating shaft 110, fourth transmission gear 1101, shaft hole 1192, arc-shaped end plate 131, slide rod 132, spring 133, limit plate 134, sub-adjusting wheel 141, mounting plate 161, fixed support plate 162, first adjusting groove 164, adjusting wheel shaft 171, adjusting groove 172;

[0040] Cutting shaft 21, saw blade 22, clamping and fixing device 23, moving table 24, dust suction hood 25, cutting motor 26;

[0041] Fixed clamping bar 231, movable clamping bar 232, clamping bar driving device 233, slide rail 234, slider 235, first slider 241, first guide rail 242, first lead screw motor 243, movable base 244, second slider 245, second guide rail 246, second lead screw 247, second lead screw motor 248, second lead screw nut 249, dust suction port 251;

[0042] Guide wheel assembly 31, guide tube 32, first pressure wheel assembly 33;

[0043] Driven guide wheel 311, driving guide wheel 312, third support plate 313, third sliding plate 314, third adjusting groove 316, guide wheel drive motor 317, guide groove 3111, tube body 321, circular channel 322, conical opening 323, position adjusting mounting plate 324, position adjusting groove 325, limiting base plate 331, limiting groove 332, pressure wheel 333, second rotating swing arm 351, second box body 352, pressure wheel shaft 353, second spring plate 354, second cover plate 355, second arc-shaped guide groove 356.

[0044] U-shaped limiting discharge channel 51, discharge conveyor belt 52, discharge main drive wheel 53, discharge driven wheel 54, discharge pressure wheel 55, third floating adjustment device 56, inclined discharge slide 57;

[0045] The third rotating swing arm 561, the third box body 562, the discharge pressure roller shaft 563, the third spring plate 564, the third cover plate 565, and the third arc-shaped guide groove 566. Detailed Implementation

[0046] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Reference Figure 1-17 A plastic pen cutting machine S includes a feeding and positioning device 1 and a cutting device 2. The feeding and positioning device 1 includes two conveyor belts 11 arranged vertically at intervals. At least one conveyor belt 11 can adjust the distance between the two conveyor belts 11 via a first adjusting device. The space between the two conveyor belts 11 forms a first limiting channel 12. A horizontal floating pressure plate 13 is provided on the horizontal middle of the conveyor belt 11 away from the first limiting channel 12. A first floating adjusting device is connected to the floating pressure plate 13 to press the floating pressure plate against the conveyor belt 11. The first limiting channel 12... Two adjusting wheels 14 are arranged at the feeding end and the discharging end respectively. The two adjusting wheels 14 are arranged horizontally at intervals. The front and rear positions of the two adjusting wheels 14 are adjusted by the second adjusting device. The gap between the two adjusting wheels 14 forms a second limiting channel 15 corresponding to the first limiting channel 12. The cutting device 2 includes a cutting blade shaft 21, on which several circular saw blades 22 are evenly fixed. It also includes a clamping and fixing device 23 for clamping and fixing the cut object during cutting. The cutting device 2 is installed on a moving table 24 that can move horizontally left and right and horizontally back and forth.

[0048] Both the feeding positioning device 1 and the cutting device 2 are installed on the machine base 6.

[0049] Preferably, each of the two conveyor belts 11 is fitted with a main drive wheel 111 and a driven wheel 112. The first adjustment device includes a longitudinal mounting plate 161 and a fixed support plate 162. The mounting plate 161 is fixed to the fixed support plate 162 by a first bolt. The mounting plate 161 and / or the fixed support plate 162 are provided with a first adjustment groove 164 that cooperates with the first bolt to adjust the height of the mounting plate 161. The main drive wheel 111 and the driven wheel 112 of each conveyor belt 11 are rotatably connected to the mounting plate 161. At least one mounting plate 161 is mounted on the fixed support plate 162 with adjustable height. The two main drive wheels 111 are driven by the same drive motor 113 or each is driven by a drive motor.

[0050] Preferably, the two main drive wheels 111 are connected to the same drive motor 113 (the drive motor 113 can be a geared motor depending on the speed requirement). One of the main drive wheels 113 is fixed on the shaft of the drive motor 113. A first transmission gear 114 is fixedly connected to the shaft of the drive motor 113, and a first adjusting plate 115 is rotatably connected to it. A first rotating shaft 116 is rotatably connected to the first adjusting plate 115, and a second transmission gear 117 and a third transmission gear 118 are fixedly fixed on the first rotating shaft 116 at intervals. The other end of the first rotating shaft 116 is rotatably connected to the second adjusting plate 119. An arc-shaped adjusting groove 1191 is provided on the end of the second adjusting plate 119 away from the first rotating shaft 116. The second adjusting plate 119 is also provided with a shaft hole 1192 through which the shaft of the drive motor 113 passes. Another main drive wheel 111 is fixedly connected to a fourth transmission gear 1101 through the second rotating shaft 110. The second transmission gear 117 meshes with the first transmission gear 114, and the third transmission gear 118 meshes with the fourth transmission gear 1101.

[0051] Preferably, the floating pressure plate 13 has upward-curved arc-shaped end plates 131 fixedly connected to both ends.

[0052] Preferably, the first floating adjustment device includes at least one slide rod 132 vertically fixedly connected to the floating pressure plate 13. The slide rod 132 is located on the surface of the floating pressure plate 13 away from the first limiting channel 12. A spring 133 is sleeved on the slide rod 132. One end of the slide rod 132 away from the first limiting channel 12 is slidably sleeved in a limiting plate 134. The spring 133 is located between the limiting plate 134 and the floating pressure plate 13.

[0053] Preferably, the adjusting wheel 14 includes at least one coaxial sub-adjusting wheel 141 from top to bottom. The second adjusting device includes an adjusting wheel shaft 171. The sub-adjusting wheel 141 is rotatably connected to the upper part of the adjusting wheel shaft 171. The lower part of the adjusting wheel shaft 171 is an external thread section (not shown). At least two adjusting nuts (not shown) are sleeved on the external thread section. The device also includes adjusting grooves 172 that are opened horizontally front and back. The external thread section is located in the adjusting grooves 172. The adjusting nuts are located above and below the adjusting grooves 172, respectively.

[0054] Preferably, the clamping and fixing device 23 includes a fixed clamping bar 231 and a movable clamping bar 232 that cooperate with each other. The movable clamping bar 232 is throttle-connected to a clamping bar driving device 233 that drives the movable clamping bar 232 to move closer to or away from the fixed clamping bar 231. The clamping bar driving device 233 is one of a cylinder, a hydraulic cylinder or an electric cylinder. The movable clamping bar 232 is also connected to a guide device, which includes a slide rail 234 and a slider 235. The slide rail 234 or the slider 235 is fixed on the movable clamping bar 232.

[0055] The cutter shaft 21 is connected to the cutting motor 26 for transmission, and the cutting motor 26 is used to drive the rotation of the cutter shaft 21.

[0056] Preferably, the cutting device 2 is also covered with a dust suction hood 25, and the dust suction hood 25 has at least one dust suction port 251.

[0057] The movable stage 24 includes a set of first sliders 241 that move back and forth, a first guide rail 242, a first lead screw and a first lead screw motor 243 that drive the movable stage to move back and forth. The first slider 241 is movably mounted on the first guide rail 242 and is fixed on the movable stage 24. The first lead screw motor 243 is driven by the first lead screw, and a first lead screw nut is fitted on the first lead screw. The movable stage 244 also includes a movable base 244, a second slider 245, a second guide rail 246, a second lead screw 247 and a second lead screw motor 248 that drive the movable base to move left and right. The second guide rail 246 and the second lead screw motor 248 are fixed on the movable base 244. The second slider 245 is movably mounted on the second guide rail 246 and is fixed on the movable base 244. The second lead screw motor 248 is driven by the second lead screw 247, and a second lead screw nut 249 is fitted on the second lead screw 247.

[0058] Preferably, an intermediate guide device 3 is further provided between the feeding positioning device 1 and the cutting device 2. The intermediate guide device 3 includes at least one guide wheel assembly 31, a guide tube 32, and a first pressure roller assembly 33. The guide wheel assembly 31 includes a driven guide wheel 311 and a driving guide wheel 312 arranged at intervals. The distance between the driven guide wheel 311 and the driving guide wheel 312 is adjusted by a third adjusting device. A guide groove 3111 is formed on the outer circumferential side of the driven guide wheel 311. The guide groove 3111 is an arc-shaped groove. The outer circumferential side of the driving guide wheel 312 is a plane. The guide tube 32 includes a tube body 321. The tube body 321 has a circular channel 322 that runs through both ends in the middle. The inlet end of the circular channel 322 is a conical opening 323 that is larger on the outside and smaller on the inside. A position adjustment mounting plate 324 is also fixed on the tube body 321. The position adjustment mounting plate 324 has a position adjustment groove 325 for adjusting the position. The first pressure roller assembly 33 includes a limiting base plate 331. The upper surface of the limiting base plate 331 has a limiting groove 332 that runs through both ends. At least one horizontally spaced pressure roller 333 is arranged above the limiting groove 332. The assembly also includes a second floating adjustment device that presses the pressure roller 333 into the limiting groove 332.

[0059] Preferably, the third adjustment device includes a longitudinal third support plate 313 and a third sliding plate 314. The third sliding plate 314 is fixed to the third support plate 313 by a third bolt. The third sliding plate 313 and / or the third support plate 314 are provided with a third adjustment groove 316 for adjusting the height of the third sliding plate 314 in conjunction with the third bolt. The driving guide wheel 312 is rotatably connected to the third support plate 313 and is driven by a guide wheel drive motor 317. The driven guide wheel 311 is rotatably connected to the third sliding plate 314. The second floating... The adjusting device includes a second rotating arm 351, one end of which is rotatably connected to the second housing 352, and the other end of which is vertically fixed to a pressure roller shaft 353. The end of the pressure roller shaft 353 is rotatably connected to the pressure roller 333. It also includes a second spring plate 354 or a second spring for rotating and pressing the second rotating arm 351 downward. A detachable second cover plate 355 is also installed on the second housing 352. The second cover plate 355 has a second arc-shaped guide groove 356 for guiding the movement of the pressure roller shaft 353.

[0060] Preferably, the discharge end of the cutting device 2 is further provided with a discharge conveying device 5. The discharge conveying device 5 includes a U-shaped limiting discharge channel 51, a discharge conveyor belt 52 is provided inside the U-shaped limiting discharge channel 51, and a discharge main drive wheel 53 and at least one discharge driven wheel 54 are sleeved inside the discharge conveyor belt 52. The U-shaped limiting discharge channel 51 is provided with at least one horizontally spaced discharge pressure roller 55, and also includes a third floating adjustment device 56 for pressing the discharge pressure roller 55 against the U-shaped limiting discharge channel 51. The discharge end also includes an inclined discharge slide 57.

[0061] Preferably, the third floating adjustment device 56 includes a third rotating swing arm 561, one end of which is rotatably connected to the third housing 562, and the other end of which is vertically fixed to a discharge pressure roller shaft 563. The end of the discharge pressure roller shaft 563 is rotatably connected to a discharge pressure roller 55. It also includes a third spring plate 564 or a third spring for rotating and pressing the third rotating swing arm 561 downward. A detachable third cover plate 565 is also installed on the third housing 562. The third cover plate 565 has a third arc-shaped guide groove 566 for guiding the movement of the discharge pressure roller 55.

[0062] During operation, the long plastic pen 7 enters through the second limiting channel 15 between the adjusting wheels 14 at the feed end of the conveyor belt 11, then enters the first limiting channel 12 between the conveyor belts 11, and then enters the second limiting channel 15 between the adjusting wheels 14 at the discharge end of the conveyor belt 11. The long plastic pen 7 is clamped from front to back by the adjusting wheels 14 and from top to bottom by the conveyor belt 11, maintaining accurate positioning. Then, through the transition repositioning of the guide wheel group 31, guide tube 32 and first pressure wheel assembly 33 in the intermediate guide device 3, the long plastic pen 7 is ensured to maintain accurate positioning before entering the cutting device 2. After entering the cutting device 2, it is clamped by the clamping and fixing device 23, and the saw blade 22 cuts the long plastic pen 7 into several plastic pen segments of equal length. Finally, it is sent out through the discharge conveyor device 5.

[0063] The feeding and positioning device of this utility model can perform horizontal and vertical positioning with high positioning accuracy and good stability. It is also adjustable to adapt to pens of different diameters. The cutting device clamps and fixes the pen during cutting, ensuring good stability and cutting quality. Multiple saw blades 22 can cut multiple pen segments at once, resulting in high efficiency. Therefore, the pens produced by this utility model are of high quality, have a high yield rate, and high production efficiency.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic pen cutting machine, characterized in that: include The feeding and positioning device includes two conveyor belts arranged vertically and horizontally at intervals. At least one conveyor belt can adjust the distance between the two conveyor belts via a first adjusting device. The space between the two conveyor belts forms a first limiting channel. A horizontal floating pressure plate is provided on the horizontal middle of the conveyor belt away from the first limiting channel. A first floating adjusting device is connected to the floating pressure plate to press the floating pressure plate against the conveyor belt. Two adjusting wheels are respectively arranged at the feeding end and the discharging end of the first limiting channel. The two adjusting wheels are arranged horizontally at intervals. The two adjusting wheels can adjust their front and rear positions via a second adjusting device. The gap between the two adjusting wheels forms a second limiting channel corresponding to the first limiting channel. The cutting device includes a cutting shaft with several circular saw blades evenly fixed on it, and a clamping and fixing device for holding and fixing the object to be cut during cutting. The cutting device is mounted on a movable table that can move horizontally left and right and horizontally back and forth.

2. The plastic pen cutting machine as described in claim 1, characterized in that: Both conveyor belts are fitted with a main drive wheel and a driven drive wheel. The first adjustment device includes a longitudinal mounting plate and a fixed support plate. The mounting plate is fixed to the fixed support plate by a first bolt. The mounting plate and / or the fixed support plate are provided with a first adjustment groove that matches the first bolt for adjusting the height of the mounting plate. The main drive wheel and the driven drive wheel of each conveyor belt are rotatably connected to the mounting plate. At least one mounting plate is mounted on the fixed support plate with adjustable height. The two main drive wheels are driven by the same drive motor or each is driven by a drive motor.

3. The plastic pen cutting machine as described in claim 2, characterized in that: Two main drive wheels are connected to the same drive motor. One of the main drive wheels is fixed to the shaft of the drive motor. A first transmission gear is fixedly connected to the shaft of the drive motor, and a first adjusting plate is rotatably connected to it. A first rotating shaft is rotatably connected to the first adjusting plate. A second transmission gear and a third transmission gear are fixed on the first rotating shaft at intervals. The other end of the first rotating shaft is rotatably connected to the second adjusting plate. An arc-shaped adjusting groove is opened on the end of the second adjusting plate away from the first rotating shaft. The second adjusting plate also has a shaft hole through which the shaft of the drive motor passes. The other main drive wheel is fixedly connected to a fourth transmission gear through the second rotating shaft. The second transmission gear meshes with the first transmission gear, and the third transmission gear meshes with the fourth transmission gear.

4. The plastic pen cutting machine as described in claim 1, characterized in that: The first floating adjustment device includes at least one slide rod that is vertically fixedly connected to the floating pressure plate. The slide rod is located on the surface of the floating pressure plate away from the first limiting channel. A spring is sleeved on the slide rod. The end of the slide rod away from the first limiting channel is slidably sleeved in a limiting plate. The spring is located between the limiting plate and the floating pressure plate.

5. The plastic pen cutting machine as described in claim 1, characterized in that: The adjusting wheel includes at least one coaxial sub-adjusting wheel from top to bottom. The second adjusting device includes an adjusting wheel shaft, the sub-adjusting wheel is rotatably connected to the upper part of the adjusting wheel shaft, the lower part of the adjusting wheel shaft is an external thread section, the external thread section is sleeved with at least two adjusting nuts, and also includes adjusting grooves opened horizontally front and back, the external thread section is located in the adjusting grooves, and the adjusting nuts are located above and below the adjusting grooves respectively.

6. The plastic pen cutting machine as described in claim 1, characterized in that: The clamping and fixing device includes a fixed clamping bar and a movable clamping bar that cooperate with each other. The movable clamping bar is driven by a clamping bar driving device that drives the movable clamping bar to move closer to or away from the fixed clamping bar. The clamping bar driving device is one of a pneumatic cylinder, a hydraulic cylinder or an electric cylinder. The movable clamping bar is also connected to a guide device, which includes a slide rail and a slider. The slide rail or slider is fixed on the movable clamping bar.

7. The plastic pen cutting machine as described in claim 1, characterized in that: The cutting device is also covered by a dust suction hood, which has at least one dust suction port.

8. The plastic pen cutting machine as described in any one of claims 1-7, characterized in that: An intermediate guide device is also provided between the feeding positioning device and the cutting device. The intermediate guide device includes at least one guide wheel group, a guide tube and a first pressure wheel assembly. The guide wheel assembly includes a driven guide wheel and a driving guide wheel arranged at intervals. The distance between the driven guide wheel and the driving guide wheel is adjusted by a third adjustment device. A guide groove is formed on the outer circumferential side of the driven guide wheel, and the outer circumferential side of the driving guide wheel is a plane. The guide tube includes a tube body with a circular channel running through both ends in the middle of the tube body. The inlet end of the circular channel is a conical opening that is larger on the outside and smaller on the inside. A position adjustment mounting plate is also fixed on the tube body, and a position adjustment groove is provided on the position adjustment mounting plate. The first pressure roller assembly includes a limiting base plate, the upper surface of which has a limiting groove extending through both ends, and at least one horizontally spaced pressure roller is provided above the limiting groove. It also includes a second floating adjustment device that presses the pressure rollers toward the limiting groove.

9. The plastic pen cutting machine as described in claim 8, characterized in that: The third adjustment device includes a longitudinal third support plate and a third slide plate. The third slide plate is fixed to the third support plate by a third bolt. The third slide plate and / or the third support plate are provided with a third adjustment groove that matches the third bolt for adjusting the height of the third slide plate. The driving guide wheel is rotatably connected to the third support plate and is driven by a guide wheel drive motor. The driven guide wheel is rotatably connected to the third slide plate. The second floating adjustment device includes a second rotating swing arm, one end of which is rotatably connected to the second housing, and the other end of which is vertically fixed to a pressure roller shaft. The end of the pressure roller shaft is rotatably connected to the pressure roller. It also includes a second spring plate or a second spring for rotating and pressing down the second rotating swing arm. A detachable second cover plate is also installed on the second housing, and a second arc-shaped guide groove is provided on the second cover plate to guide the movement of the pressure roller shaft.

10. The plastic pen cutting machine according to any one of claims 1-7, characterized in that: The discharge end of the cutting device is also provided with a discharge conveying device, which includes a U-shaped limiting discharge channel, a discharge conveyor belt inside the U-shaped limiting discharge channel, a discharge main drive wheel and at least one discharge driven wheel inside the discharge conveyor belt, at least one horizontally spaced discharge pressure roller in the U-shaped limiting discharge channel, and a third floating adjustment device for pressing the discharge pressure roller toward the U-shaped limiting discharge channel. The third floating adjustment device includes a third rotating swing arm, one end of which is rotatably connected to a third housing, and the other end of which is vertically fixed to a discharge pressure roller shaft. The end of the discharge pressure roller shaft is rotatably connected to a discharge pressure roller, and a third spring plate or a third spring for rotating and pressing the third rotating swing arm downward. A detachable third cover plate is also installed on the third housing, and a third arc-shaped guide groove is opened on the third cover plate to guide the movement of the discharge pressure roller.

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