A servo-feed paper tube cutting machine

Abstract

The present invention relates to a servo-feed paper tube cutting machine, belonging to the technical field of paper tube cutting equipment. The present invention includes a paper tube clamping and rotating mechanism, a servo-feed cutting mechanism, and a frame. The paper tube clamping and rotating mechanism and the servo-feed cutting mechanism are both installed on the frame. The equipment of the present invention is simple, has a compact structure, and low input cost, can improve the paper tube cutting efficiency and the flatness of the cutting plane; reduce the labor intensity of workers and labor costs, has a wide market application prospect, and has strong economic value, practical value, and promotion value.

Description

Technical Field

[0001] The present invention relates to a servo-feed paper tube cutting machine, belonging to the technical field of paper tube cutting equipment. Background Art

[0002] Paper tubes are widely used in winding products of soft materials such as paper rolls and film rolls. The products are wound on the paper tubes to improve the overall stiffness and meet the requirements of normal transportation and storage conditions. The length specifications of the paper tubes need to be customized and cut according to different winding products. Different product requirements are cut into different lengths to match the needs of the winding products. The drum material of the winding products is mainly paper tubes. On the one hand, the paper tubes have certain mechanical strength and are easy to process. On the other hand, the cost is low, they can be recycled and reused, and they are environmentally friendly.

[0003] In the actual production and processing of paper tubes, it is usually to pre-purchase paper tube raw materials with a longer length and then cut them according to the customized specifications to meet the expected needs. Therefore, paper tube cutting equipment is one of the essential equipment for each winding product production enterprise, especially for the slitting of plastic soft packaging film rolls.

[0004] In the prior art, the cutting of paper tubes is manually operated by a cutting device. The paper tube is installed on a rotating shaft, and the cutter is manually pressed down. The paper tube contacts and surrounds the cutter for multiple weeks until it is cut off to obtain the finished paper tube. The existing manual paper tube cutting equipment has poor flat cutting accuracy on the one hand, and it is easy to cause paper scraps to adhere to the cutting plane or the cutting surface to be uneven. On the other hand, the degree of automation is low, the efficiency is low, and the labor intensity is high. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: The present invention provides a servo-feed paper tube cutting machine, which can be applicable to paper tube cutting, solve the above problems, and improve the efficiency of paper tube cutting and the flatness of the cutting surface.

[0006] The technical solution of the present invention is: A servo-feed paper tube cutting machine includes a paper tube clamping and rotating mechanism, a servo-feed cutting mechanism, and a frame.

[0007] The paper tube clamping and rotating mechanism includes a support shaft, a clamping cylinder, a clamping cylinder swing rod, a sliding sleeve, a clamping follower roller, a driven pulley, a support disk, a connecting rod, a slider, a paper tube follower roller, a main motor, an output pulley, a belt, and a clamping claw.

[0008] The support shaft, clamping cylinder and main motor are all installed on the frame. The sliding sleeve, driven pulley and paper tube follower roller are sequentially installed on the support shaft. The extending end of the clamping cylinder is connected to the sliding sleeve on the support shaft through a clamping cylinder swing rod. A support disc is installed on the driven pulley. The extending end of the main motor is connected to an output pulley. The output pulley is connected to the driven pulley through a belt. A clamping follower roller is installed on the sliding sleeve. The clamping follower roller is connected to the driven pulley through a connecting rod. There are multiple connecting rods, which are evenly arranged along the circumferential direction of the clamping follower roller and / or the sliding sleeve. A slider is installed on the support disc. One end of the slider is connected to the connecting rod and the other end is connected to a clamping jaw. The number of the connecting rods, sliders and clamping jaws is the same and the arrangement mode is the same.

[0009] The servo-feed cutting mechanism includes a servo motor, platform I, guide rail I, ball screw, cutting cylinder, platform II, guide rail II, blade, tool holder and nut-screw adjusting mechanism.

[0010] The servo motor, platform I, guide rail I and ball screw are all installed on the frame. The guide rail I and the ball screw are located in the same plane. The ball screw is located in the middle of the guide rail I. The ball screw is connected to the servo motor and the platform I. The guide rail I is connected to the platform I. The cutting cylinder, platform II and guide rail II are all installed on the platform I. The tool holder is installed on the extending end of the cutting cylinder. The tool holder is connected to the platform II. The blade is installed on the tool holder.

[0011] Furthermore, a support cylinder is installed on the frame. The support cylinder is located below the extending end of the support shaft and is used to support the support shaft.

[0012] Furthermore, both ends of the ball screw are fixed to the frame through bearing seats.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The equipment of the present invention is simple, has a compact structure and low input cost;

[0015] 2. The present invention can improve the cutting efficiency of the paper tube and the flatness of the cutting plane; reduce the labor intensity of workers and the labor cost;

[0016] 3. The present invention has a wide market application prospect and has strong economic value, practical value and promotion value. Description of the Drawings

[0017] Figure 1 is the overall structural external view of the present invention;

[0018] Figure 2 is the overall axonometric view of the present invention;

[0019] Figure 3 is the front view of the present invention;

[0020] Figure 4 is the top view of the present invention;

[0021] Figure 5 is of the present invention Figure 4 partial enlarged view;

[0022] Figure 6 is the left view of the present invention;

[0023] Figure 7 is the right view of the present invention;

[0024] Figure 8 is the overall axonometric view of the feed cutting mechanism of the present invention.

[0025] The reference numerals in the figure are: 1 - frame, 2 - support shaft, 3 - clamping cylinder, 4 - clamping cylinder swing rod, 5 - sliding sleeve, 6 - clamping follower roller, 7 - driven pulley, 8 - support disc, 9 - connecting rod, 10 - slider, 11 - paper tube follower roller, 12 - main motor, 13 - output pulley, 14 - belt, 15 - clamping jaw, 16 - servo motor, 17 - platform I, 18 - guide rail I, 19 - ball screw, 20 - cutting cylinder, 21 - platform II, 22 - guide rail II, 23 - blade, 24 - tool holder, 25 - nut-screw adjusting mechanism, 26 - support cylinder. Detailed implementation manners

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Embodiment 1: As Figure 1-7 shown, a servo-feed paper tube cutting machine includes a paper tube clamping and rotating mechanism, a servo-feed cutting mechanism, and a frame.

[0028] The paper tube clamping and rotating mechanism includes a support shaft 2, a clamping cylinder 3, a clamping cylinder swing rod 4, a sliding sleeve 5, a clamping follower roller 6, a driven pulley 7, a support disc 8, a connecting rod 9, a slider 10, a paper tube follower roller 11, a main motor 12, an output pulley 13, a belt 14, and a clamping jaw 15.

[0029] The supporting shaft 2, the clamping cylinder 3 and the main motor 12 are all installed on the platform on one side of the top of the frame 1, and the main motor 12 is located below the platform. The sliding sleeve 5, the driven pulley 7 and the paper tube follower roller 11 are sequentially sleeved on the supporting shaft 2. The extending end of the clamping cylinder 3 is connected to the sliding sleeve 5 on the supporting shaft 2 through a clamping cylinder swing rod 4. A supporting disc 8 is installed on the driven pulley 7. The extending end of the main motor 12 is connected to an output pulley 13, and the output pulley 13 is connected to the driven pulley 7 through a belt 14. A clamping follower roller 6 is installed on the sliding sleeve 5, and the clamping follower roller 6 is connected to the driven pulley 7 through a connecting rod 9. There are three connecting rods 9, which are evenly arranged along the circumferential direction of the clamping follower roller 6 and the sliding sleeve 5. A slider 10 is installed on the supporting disc 8. One end of the slider 10 is connected to the connecting rod 9 and the other end is connected to a clamping jaw 15. The number of the connecting rods 9, the sliders 10 and the clamping jaws 15 is the same, all being three, and the arrangement modes are also the same.

[0030] The servo-feed cutting mechanism includes a servo motor 16, a platform I 17, a guide rail I 18, a ball screw 19, a cutting cylinder 20, a platform II 21, a guide rail II 22, a blade 23, a tool holder 24, and a nut-screw adjusting mechanism 25.

[0031] The servo motor 16, the platform I 17, the guide rail I 18 and the ball screw 19 are all installed on the frame 1. The guide rail I 18 and the ball screw 19 are located in the same plane, and the ball screw 19 is located in the middle of the guide rail I 18. The ball screw 19 is connected to the servo motor 16, and the nut end of the ball screw 19 is connected to the platform I 17. The guide rail I 18 is connected to the platform I 17, and the guide rail I 18 passes through the platform I 17. The platform II 21 is installed on the platform I 17 through the nut-screw adjusting mechanism 25. The cutting cylinder 20 and the guide rail II 22 are both installed on the platform I 17. The nut-screw adjusting mechanism 25 connects the platform I 17 and the platform II 21 and is used to adjust the extending movement of the cutting cylinder 20 in the direction perpendicular to the movement direction of the ball screw 19, driving the blade 23 on the tool holder 24 to cut the paper tube to the limit position. The tool holder 24 is installed on the extending end of the cutting cylinder 20, the tool holder 24 is connected to the platform II 21, and the blade 23 is installed on the tool holder 24.

[0032] Further, a supporting cylinder 26 is installed on the frame 1. The supporting cylinder 26 is located below the supporting shaft 2 and is used to support the supporting shaft 2.

[0033] Further, both ends of the ball screw 19 are fixed to the frame 1 through bearing seats with bearings.

[0034] The working principle of the present invention is:

[0035] 1. Machine startup and parameter setting

[0036] Turn on the machine power supply. According to production requirements, input the paper tube cutting length parameter into the machine. Retract the support cylinder 26, and load the paper tube to be cut onto the extended end of the support shaft 2 until it contacts the cross-section of the paper tube follower roller 11 at the limit position. Start the machine, and extend the support cylinder 26.

[0037] 2. Paper tube clamping

[0038] The clamping cylinder 3 retracts to drive the clamping cylinder swing rod 4, causing the sliding sleeve 5 to move away from the driven pulley 7. The clamping follower roller 6 on the sliding sleeve 5 drives the connecting rod 9, and the connecting rod 9 drives the sliders 10 evenly arranged in the circumferential direction of the support disc 8, causing the corresponding clamping claws 15 to move simultaneously towards the center of the support disc 8. The clamping end of the paper tube contacts the small outer cylindrical surface of the paper tube follower roller 11, and the paper tube is clamped.

[0039] Through this clamping and fixing method with such a structure, paper tubes of different lengths can be clamped and fixed, solving the problem in the prior art that cutting equipment cannot effectively clamp, limit, and fix paper tubes of different lengths. At the same time, the material of the paper tube is prone to change due to weather influence. In hot and humid weather, the paper tube may expand and become longer, and in dry and cold weather, the paper tube may shrink and become shorter. The clamping structure in the present invention can adjust and fix according to the length of the paper tube, so that the paper tube can be clamped and fixed at any time.

[0040] 3. The cutting mechanism servo feeds to the starting point

[0041] The servo motor 16 starts to rotate forward, driving the lead screw in the ball screw 19 to rotate. The platform I 17 moves towards the extended end of the support shaft 2 and stops moving when positioned at the free end of the paper tube through the sensor on the platform II 21.

[0042] 4. Paper tube rotational movement

[0043] The main motor 12 starts, and the output pulley 13 drives the driven pulley 7 to continuously rotate through the belt 14. In the paper tube clamping and rotating mechanism described in the present invention, there is a clearance fit between the inner surface of the paper tube raw material and the outer surface of the support shaft. Loading the uncut paper tube raw material and unloading the cut customized paper tube are both labor-saving and convenient; only one end is clamped, the mechanism is simple, the work is reliable, and no manual intervention is required; any paper tube not exceeding the maximum limit length parameter can be loaded and cut.

[0044] 5. Paper tube cutting

[0045] According to the input cutting length parameter, the servo motor 16 starts to reverse. According to the relationship between the input cutting parameter and the lead of the ball screw 19, it drives the screw in the ball screw 19 to rotate. When it reaches the cutting length position, the servo motor 16 stops. The cutting cylinder 20 extends to drive the tool holder 24 installed on the platform II 21 to move along the guide rail II 22 in the direction close to the paper tube. The blade 23 installed on the tool holder 24 contacts and cuts the paper tube. Through the above repeated operations, the full-length paper tube is cut according to the set cutting length. The installation position of the servo feed cutting mechanism of the present invention is on the other side of the manual loading and unloading of the paper tube, which can greatly reduce the risk of the hand contacting the blade during the loading and unloading of the paper tube and avoid industrial injuries to workers.

[0046] 6. Machine reset

[0047] (1) The main motor 12 stops, and the servo motor 16 starts to reverse until it stops at the limit position.

[0048] (2) The clamping cylinder 3 extends to drive the clamping cylinder swing rod 4, so that the sliding sleeve 5 moves in the direction close to the driven pulley 7. The clamping follower roller 6 on the sliding sleeve 5 drives the connecting rod 9, and the connecting rod 9 drives the sliders 10 evenly arranged in the circumferential direction of the support disk 8, so that the corresponding clamping claws 15 move away from the center of the support disk 8 at the same time, and the paper tube is loosened.

[0049] (3) The support cylinder 26 retracts to unload the cut paper tube.

[0050] (4) The machine is shut down, and the support cylinder 26 extends.

[0051] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A servo-feed paper tube cutting machine, characterized in that: It includes a paper tube clamping and rotating mechanism, a servo feeding and cutting mechanism, and a frame (1); The paper tube clamping and rotating mechanism includes a support shaft (2), a clamping cylinder (3), a clamping cylinder swing rod (4), a sliding sleeve (5), a clamping follower roller (6), a driven pulley (7), a support disk (8), a connecting rod (9), a slider (10), a paper tube follower roller (11), a main motor (12), an output pulley (13), a belt (14), and a clamping jaw (15); The support shaft (2), the clamping cylinder (3), and the main motor (12) are all installed on the frame (1). The sliding sleeve (5), the driven pulley (7), and the paper tube follower roller (11) are sequentially installed on the support shaft (2). The clamping cylinder (3) is connected to the sliding sleeve (5) on the support shaft (2) through the clamping cylinder swing rod (4). A support disk (8) is installed on the driven pulley (7). The main motor (12) is connected to the output pulley (13), and the output pulley (13) is connected to the driven pulley (7) through the belt (14). The clamping follower roller (6) is installed on the sliding sleeve (5), and the clamping follower roller (6) is connected to the driven pulley (7) through the connecting rod (9). A slider (10) is installed on the support disk (8). One end of the slider (10) is connected to the connecting rod (9), and the other end is connected to the clamping jaw (15); The servo feeding and cutting mechanism includes a servo motor (16), a platform I (17), a guide rail I (18), a ball screw (19), a cutting cylinder (20), a platform II (21), a guide rail II (22), a blade (23), a tool holder (24), and a nut-screw adjusting mechanism (25); The servo motor (16), the platform I (17), the guide rail I (18), and the ball screw (19) are all installed on the frame (1). The ball screw (19) is connected to the servo motor (16), the ball screw (19) is connected to the platform I (17), the guide rail I (18) is connected to the platform I (17). The cutting cylinder (20), the platform II (21), and the guide rail II (22) are all installed on the platform I (17). The tool holder (24) is installed on the cutting cylinder (20), the tool holder (24) is connected to the platform II (21), and the blade (23) is installed on the tool holder (24); A support cylinder (26) is installed on the frame (1), and the support cylinder (26) is located below the support shaft (2) for supporting the support shaft (2); Among them, the platform I (17) stops moving when it is positioned at the free end of the paper tube through the sensor on the platform II (21); the nut-screw adjusting mechanism (25) is used to adjust the extended movement of the cutting cylinder (20) in the direction perpendicular to the movement direction of the ball screw (19), driving the blade (23) on the tool holder (24) to cut the extreme position of the paper tube.

2. The servo-feed paper tube cutting machine according to claim 1, characterized in that: There are multiple connecting rods (9), which are evenly arranged along the circumferential direction of the clamping follower roller (6) and / or the sliding sleeve (5).

3. The servo-feed paper tube cutting machine according to claim 1, characterized in that: Both ends of the ball screw (19) are fixed to the frame (1) through bearing seats.

4. The servo-feed paper tube cutting machine according to claim 1, characterized in that: The guide rail Ⅰ (18) and the ball screw (19) are in the same plane, and the ball screw (19) is located in the middle of the guide rail Ⅰ (18).

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