Automatic paper covering device

Abstract

The present invention discloses an automatic paper covering device, comprising a paper feeding mechanism, a paper pressing mechanism and a paper cutting mechanism, wherein the paper feeding mechanism comprises a paper roll mounting roller and a paper feeding roller for providing power for the bottom paper rolled on the paper roll mounting roller; the paper pressing mechanism comprises a paper pressing plate, a paper guide plate and a first driving cylinder, wherein the first driving cylinder is used to drive the paper pressing plate to press the bottom paper onto the paper guide plate, wherein the paper guide plate is provided with a knife edge groove; the paper cutting mechanism comprises a roller blade component and a roller driving mechanism, wherein the roller blade component comprises a roller blade, and a pressure wheel and a first compression spring respectively arranged on both sides of the roller blade, wherein the pressure wheel abuts against the bottom paper, wherein the first compression spring abuts the roller blade against the groove wall of the knife edge groove, and the roller driving mechanism is connected to the roller blade component and drives the roller blade component to reciprocate along the length direction of the knife edge groove. The present invention can realize the automation of the paper covering process, and the paper covering is uniform, thereby helping to improve product quality and production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of foamed ceramic production equipment, in particular to an automatic paper covering equipment. Background Art

[0002] In the production process of raw material layout in front of the kiln of foamed ceramic partition boards, one of the links is the bottom paper covering process of foamed bricks. At present, ceramic factories generally use the manual paper covering method, that is, overlapping two rectangular asbestos papers cut in advance and laying them on the bottom plate conveyed by the roller table.

[0003] This manual paper covering method requires a lot of labor, is labor-intensive, time-consuming and labor-intensive, and is greatly affected by human factors; since the paper used is asbestos paper, long-term contact with it will cause great harm to human skin; laying the base paper requires several sheets of paper to be spliced ​​together, and manual laying cannot ensure uniform paper covering of the middle splicing section, which affects the effect of the fired partition board.

[0004] Therefore, it is necessary to develop a set of automatic paper covering equipment for the base paper covering process. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an automatic paper covering device, which can realize the automation of the paper covering process, cover the paper evenly, and help improve product quality and production efficiency.

[0006] In order to solve the above technical problems, the present invention provides an automatic paper covering device, including a paper feeding mechanism, a paper pressing mechanism and a paper cutting mechanism.

[0007] The paper feeding mechanism comprises a paper roll installation roller and a paper feeding roller, the paper roll installation roller is provided with a bottom paper, and the paper feeding roller is used to provide forward power for the bottom paper;

[0008] The paper pressing mechanism comprises a paper pressing plate, a paper guide plate and a first driving cylinder, wherein the first driving cylinder is connected to the paper pressing plate and is used to drive the paper pressing plate to press the bottom paper onto the paper guide plate, and the paper guide plate is provided with a knife edge groove on a side of the paper pressing plate away from the paper feeding mechanism;

[0009] The paper cutting mechanism includes a roller cutter component and a roller cutter driving mechanism. The roller cutter component includes a roller blade, and a pressure wheel and a first compression spring respectively arranged on both sides of the roller blade. The pressure wheel is arranged on the side of the blade groove close to the paper feeding mechanism, and abuts against the upper surface of the base paper. The first compression spring presses the roller blade against the groove wall of the blade groove. The roller cutter driving mechanism is connected to the roller cutter component and drives the roller cutter component to reciprocate along the length direction of the blade groove.

[0010] As an improvement of the above solution, the hob component further includes a hob seat and a connecting seat, the hob seat is provided with a accommodating groove opening downward, the hob seat is provided with a hob shaft spanning the accommodating groove, the first compression spring is sleeved on the hob shaft, the hob blade and the pressure wheel are rotatably arranged on the hob shaft, the hob blade is connected to the pressure wheel and can float along the axial direction of the hob shaft;

[0011] The connecting seat is provided with a accommodating cavity opening downward, the upper part of the hob seat is floatingly arranged in the accommodating cavity, the top of the connecting seat is provided with an adjusting screw extending into the accommodating cavity and connected to the hob seat, and the adjusting screw sleeve is provided with a second compression spring abutting against the top surface of the hob seat.

[0012] As an improvement of the above scheme, a vertically arranged first guide groove is provided on the connecting seat, and the first guide groove is communicated with the accommodating cavity. A positioning screw is passed through the hob seat, one end of the positioning screw abuts against the threaded surface of the adjusting screw, and the other end slides in cooperation with the first guide groove.

[0013] As an improvement of the above solution, the paper cutting mechanism further includes a mounting frame, the mounting frame is provided with a paper outlet, the first driving cylinder is fixed to the top of the paper outlet, the paper pressing paper is arranged at the bottom of the paper outlet, and the mounting frame is provided with a second guide groove along the length direction above the paper outlet;

[0014] The roller drive mechanism includes a synchronous belt and a first drive motor, a drive wheel and a tension wheel. The first drive motor and the tension wheel are respectively arranged at two ends of the mounting frame. The drive wheel is connected to the drive end of the first drive motor. The synchronous belt is sleeved on the drive wheel and the tension wheel. The synchronous belt is provided with a first slider adapted to the second guide groove, and the roller component is fixed to the first slider.

[0015] As an improvement of the above solution, an axially through cavity is provided in the mounting frame, a third guide groove is provided on the inner wall of the cavity, the synchronous belt passes through the cavity, and a second slider adapted to the third guide groove is provided on the synchronous belt.

[0016] As an improvement of the above solution, both ends of the mounting frame are provided with photoelectric sensors and limit baffles, the photoelectric sensors are connected to the first driving motor, and the limit baffles are used to abut against the first sliding block.

[0017] As an improvement of the above scheme, the paper roll installation roller and the paper feeding roller are arranged in sequence along the conveying direction of the base paper, and the paper feeding roller includes an active roller rod and a driven roller rod, the active roller rod and the driven roller rod are arranged parallel to each other, and the active roller rod and the driven roller rod are in contact with the top surface and the bottom surface of the base paper respectively.

[0018] As an improvement of the above solution, the paper feeding roller further includes a second driving motor, a second driving cylinder and a roller rod connecting seat arranged opposite to each other, the roller rod connecting seat is provided with an axial hole and a positioning groove, and the top of the positioning groove is open;

[0019] Both ends of the active roller extend into the shaft hole, and the second driving motor is connected to the active roller to drive the active roller to rotate;

[0020] The driven roller rod includes a roller rod sleeve and a driving shaft. The roller rod sleeve is sleeved outside the driving shaft. The roller rod sleeve can rotate relative to the driving shaft. Both ends of the driving shaft extend into the positioning groove, and the second driving cylinder is connected to the driving shaft for driving the driven roller rod to rise and fall.

[0021] As an improvement of the above solution, the paper roll installation roller includes a support, a paper roll shaft, a clamping component and a positioning pin.

[0022] The paper roll shaft seat is arranged on the support, a paper roll formed by rolling up bottom paper is sleeved on the paper roll shaft, and the clamping component is connected to the outer wall of the paper roll shaft and clamped with two ends of the paper roll;

[0023] The positioning latch is fixed to the paper roll shaft and abuts against an end of the clamping component away from the paper roll.

[0024] As an improvement of the above-mentioned scheme, the present invention also includes a frame, the paper feeding mechanism and the paper cutting mechanism are arranged on the frame, a bottom plate conveying mechanism is provided under the frame, a first sensing switch and a second sensing switch are provided on the frame, the first sensing switch is used to sense the bottom plate conveyed by the bottom plate conveying mechanism, and is connected to the second driving motor, and the second sensing switch is used to sense whether the bottom plate is covered with bottom paper, and is connected to the first driving motor and the first driving cylinder.

[0025] The implementation of the present invention has the following beneficial effects:

[0026] The invention discloses an automatic paper covering device, wherein the bottom paper rolled on the paper roll mounting roller is conveyed forward by the paper feeding roller of the paper feeding mechanism, the bottom paper rolled on the paper roll mounting roller is pressed flatly on the paper guide plate by the first driving cylinder of the paper pressing mechanism, the first compression spring of the rolling cutter component presses the rolling cutter against the groove wall of the knife edge groove on the paper guide plate, the rolling cutter driving mechanism drives the pressing wheel to roll back and forth on the upper surface of the bottom paper, and drives the rolling blade to rotate and cut paper, finally realizing automatic paper covering; the first compression spring and the pressing wheel are arranged on both sides of the rolling blade, and in the paper cutting process, the first compression spring always makes the rolling blade lean against the groove wall of the knife edge groove, so that the rolling blade cuts paper more stably, and the cut of the bottom paper after cutting is flatter; the pressing wheel is pressed on the side close to the incoming material of the bottom paper, and the pressing paper plate and the pressing wheel can It flattens the bottom paper to be cut on the paper guide, helps the bottom paper to obtain a smooth cut under the shearing action of the rolling blade, and facilitates the discharge of the bottom paper after cutting; on the other hand, driven by the rolling blade driving mechanism, the pressure wheel rubs against the bottom paper on the paper guide, and the rolling blade moves and rotates with the pressure wheel, which can ensure that the rolling blade keeps rotating, realizes effective paper cutting, and avoids tearing of the bottom paper; the paper covering of this embodiment is to directly cut off several groups of paper rolls with widths matching the bottom plate surface, avoids the situation of uneven paper covering caused by splicing multiple bottom papers, and can improve the stability of the foam brick firing effect; in addition, the paper covering process is carried out automatically, which improves production efficiency, saves labor costs, and avoids damage to the human body caused by long-term contact with the bottom paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of an automatic paper covering device of the present invention;

[0028] Figure 2 yes Figure 1 A front view of a paper cutting mechanism and a paper pressing mechanism;

[0029] Figure 3 yes Figure 2 Exploded view of;

[0030] Figure 4 yes Figure 2 Side view of

[0031] Figure 5 yes Figure 3 A schematic diagram of the three-dimensional structure of a hob component;

[0032] Figure 6 yes Figure 5 Exploded view of;

[0033] Figure 7 yes Figure 1 A schematic diagram of the structure of a paper roll mounting roller;

[0034] Figure 8 yes Figure 1 Schematic diagram of the structure of the paper feed roller. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 As shown, this embodiment provides an embodiment of an automatic paper covering device, including a paper feeding mechanism 1, a paper pressing mechanism and a paper cutting mechanism 3, wherein the paper feeding mechanism 1 includes a paper roll installation roller 11 and a paper feeding roller 12, wherein the paper roll installation roller 11 is provided with a bottom paper A, and the paper feeding roller 12 is used to provide a forward force for the bottom paper A; Figure 2 , Figure 3 and Figure 4 The paper pressing mechanism includes a paper pressing plate 21, a paper guide plate 22 and a first driving cylinder 23. The first driving cylinder 23 is connected to the paper pressing plate 21 and is used to drive the paper pressing plate 21 to press the bottom paper A onto the paper guide plate 22. The paper guide plate 22 is provided with a knife groove 221 on the side of the paper pressing plate 21 away from the paper feeding mechanism 1. The paper cutting mechanism 3 includes a roller cutter component 31 and a roller cutter driving mechanism 32. Figure 5 and Figure 6 The rolling cutter component 31 includes a rolling cutter blade 311, and a pressure wheel 312 and a first compression spring 313 respectively arranged on both sides of the rolling cutter blade 311. The pressure wheel 312 is arranged on the side of the blade groove 221 close to the paper feeding mechanism 1, and abuts against the upper surface of the base paper A. The first compression spring 313 presses the rolling cutter blade 311 against the groove wall of the blade groove 221. The rolling cutter driving mechanism 32 is connected to the rolling cutter component 31 and drives the rolling cutter component 31 to reciprocate along the length direction of the blade groove 221.

[0037] The paper feed roller 12 of the paper feed mechanism 1 is used to transport the bottom paper A rolled on the paper roll installation roller 11 forward. The first driving cylinder 23 of the paper pressing mechanism drives the paper pressing plate 21 to press the bottom paper A flatly on the paper guide plate 22. The first compression spring 313 of the roller cutter component 31 presses the roller cutter against the groove wall of the knife groove 221 on the paper guide plate 22. The roller cutter driving mechanism 32 drives the pressing wheel 312 to roll back and forth on the upper surface of the bottom paper A, and drives the roller blade 311 to rotate and cut paper, and finally realizes automatic paper covering. The first compression spring 313 and the pressing wheel 312 are respectively arranged on both sides of the roller blade 311. During the paper cutting process, the first compression spring 313 always makes the roller blade 311 lean against the groove wall of the knife groove 221, so that the roller blade 311 cuts paper more smoothly, and the cut of the bottom paper A after cutting is flatter. The pressing wheel 312 is pressed on the side close to the incoming material of the bottom paper A, and the paper pressing plate 21 and the pressing wheel 312 are pressed against the groove wall of the knife groove 221. The wheels 312 can flatten the bottom paper A to be cut on the paper guide 22, help the bottom paper A to obtain a smooth cut under the shearing action of the rolling blade 311, and facilitate the discharge of the cut bottom paper A; on the other hand, driven by the rolling blade driving mechanism 32, the pressing wheel 312 rubs against the bottom paper A on the paper guide 22, and the rolling blade 311 moves and rotates with the pressing wheel 312, which can ensure that the rolling blade 311 keeps rotating, thereby achieving effective paper cutting and avoiding tearing of the bottom paper A; the paper covering of this embodiment is to directly cut off several groups of paper rolls (two groups of paper rolls in this embodiment) with widths matching the width of the bottom plate surface, thereby avoiding the situation where multiple sheets of bottom paper A are spliced ​​together to cause uneven paper covering, and can improve the stability of the foam brick firing effect; in addition, the paper covering process is carried out automatically, which improves production efficiency, saves labor costs, and avoids damage to the human body caused by long-term contact with the bottom paper A.

[0038] The paper roll installation roller 11 and the paper feeding roller 12 of this embodiment are arranged in sequence along the conveying direction of the base paper A.

[0039] Combination Figure 7 The paper roll installation roller 11 specifically includes a support 111, a paper roll shaft 112, a clamping component 113 and a positioning pin 114. The paper roll shaft 112 is seated on the support 111, and a paper roll made of base paper A is sleeved on the paper roll shaft 112. The clamping component 113 is connected to the outer wall of the paper roll shaft 112 and is clamped with both ends of the paper roll; the positioning pin 114 is fixed to the paper roll shaft 112 and abuts against the end of the clamping component 113 away from the paper roll.

[0040] Combination Figure 8The paper feeding roller 12 specifically includes an active roller rod 121, a driven roller rod 122, a second driving motor 123, a second driving cylinder 124 arranged in pairs, and a roller rod connecting seat 125 arranged in pairs. The active roller rod 121 is arranged in parallel with the driven roller rod 122, and the active roller rod 121 and the driven roller rod 122 are in contact with the top surface and the bottom surface of the bottom paper A respectively. The roller rod connecting seat 125 is provided with an axial hole and a positioning groove, and the top of the positioning groove is open. The two ends of the active roller rod 121 extend into the axial hole, and the second driving motor 123 is connected to the active roller rod 121 to drive the active roller rod 121 to rotate. The driven roller 122 includes a roller sleeve and a driving shaft. The roller sleeve is sleeved outside the driving shaft. The roller sleeve can rotate relative to the driving shaft. Both ends of the driving shaft extend into the positioning groove, and the second driving cylinder 124 is connected to the driving shaft for driving the driven roller 122 to rise and fall.

[0041] Thus, the bottom paper A can be adjusted and tensioned by rotating the paper roll shaft 112 or the paper roll, and the bottom paper A can be smoothly and stably conveyed under the power of the paper feed roller 12. When the paper roll on the paper roll shaft 112 is used up, the second driving cylinder 124 lifts the driven roller rod 122 to facilitate the installation of a new paper roll.

[0042] The hob component 31 of this embodiment further includes a hob seat 314 and a connecting seat 315 .

[0043] The hob seat 314 is provided with a accommodating groove which opens downwards, and the hob seat 314 is provided with a hob shaft 316 which spans the accommodating groove, the first compression spring 313 is sleeved on the hob shaft 316, the hob blade 311 and the pressure wheel 312 are rotatably arranged on the hob shaft 316, the hob blade 311 is connected to the pressure wheel 312, and can float along the axial direction of the hob shaft 316.

[0044] Specifically, a mounting groove is provided at the bottom of the hob seat 314, and the hob shaft 316 includes a shaft body and a locking screw. The two ends of the shaft body are inserted into the mounting groove and are respectively threadedly connected with the locking screw, and the locking screw abuts against the outer wall of the hob seat 314. A sleeve 317 is slidably provided on the hob shaft 316, and a bearing is provided between the hob shaft 316 and the sleeve 317. A boss is provided on the circumference of the sleeve 317, and the boss and the pressure wheel 312 are respectively arranged on both sides of the hob blade 311, and the bosses of the pressure wheel 312, the hob blade 311 and the sleeve 317 are connected by screws. In order to prevent the pressure wheel 312 from causing excessive deformation to the bottom paper A, the pressure wheel 312 of this embodiment is preferably made of elastic material. The two ends of the first compression spring 313 abut against the hob seat 314 and the sleeve 317 respectively. Thus, the sleeve 317 can drive the hob blade 311 and the pressure wheel 312 thereon to float along the axial direction of the hob shaft 316 .

[0045] The connecting seat 315 is provided with a accommodating cavity which opens downwards, and the upper part of the roller seat 314 is floatingly arranged in the accommodating cavity. The top of the connecting seat 315 is provided with an adjusting screw 318 which extends into the accommodating cavity and is connected to the roller seat 314. The outer sleeve of the adjusting screw 318 is provided with a second compression spring 319 which abuts against the top surface of the roller seat 314.

[0046] By setting an adjustment screw 318 sleeved with a second compression spring 319 on the top of the connecting seat 315, and connecting the roller seat 314 with the adjustment screw 318, the upper part of the roller seat 314 is floated in the accommodating cavity of the connecting seat 315, that is, the roller seat 314 can float up and down relative to the connecting seat 315 during the paper cutting process, thereby ensuring that the pressure wheel 312 is pressed on the bottom paper A, so that the bottom paper A to be cut remains flat, and at the same time, the roller blade 311 can always rotate with the pressure wheel 312 during the movement process, so as to achieve effective paper cutting and avoid tearing the bottom paper A. The roller blade component 31 of this embodiment has a self-adjusting function, and can automatically adjust the position of the roller blade 311 and the pressure wheel 312 during the paper cutting process, without interrupting production for manual adjustment, which can help improve production efficiency while improving the paper cutting effect.

[0047] The connection seat 315 of this embodiment is provided with a vertically arranged first guide groove 310, the first guide groove 310 is communicated with the accommodating cavity, and a positioning screw (not shown in the figure) is passed through the hob seat 314, one end of the positioning screw is in contact with the threaded surface of the adjusting screw 318, and the other end is slidably matched with the first guide groove 310. On the one hand, when the hob seat 314 floats up and down in the accommodating cavity of the connection seat 315, the positioning screw can guide the hob seat 314, and on the other hand, the positioning screw can strengthen the connection between the adjusting screw 318 and the hob seat 314, and prevent the connection between the hob seat 314 and the adjusting screw 318 from loosening when the hob seat 314 floats up and down.

[0048] The roller drive mechanism 32 of this embodiment includes a synchronous belt 321 and a first drive motor 322, a drive wheel 323 and a tension wheel 324. The first drive motor 322 and the tension wheel 324 are respectively arranged at two ends of the mounting frame 33. The drive wheel 323 is connected to the drive end of the first drive motor 322. The synchronous belt 321 is sleeved on the drive wheel 323 and the tension wheel 324. The synchronous belt 321 is provided with a first slider 325 adapted to the second guide groove 331. The roller component 31 is fixed to the first slider 325 via a connecting plate on the connecting seat 315.

[0049] The running path of the synchronous belt 321 has good repeatability, and the second guide groove 331 on the mounting frame 33 guides the first slider 325 and the roller cutter component 31, so that the roller cutter component 31 runs more smoothly and has a good paper cutting effect.

[0050] The paper cutting mechanism 3 of this embodiment also includes a mounting frame 33, on which a paper outlet a is provided, the first driving cylinder 23 is fixed to the top of the paper outlet a, the paper pressing board 21 is arranged at the bottom of the paper outlet a, and the mounting frame 33 is provided with a second guide groove 331 above the paper outlet a along the length direction; the mounting frame 33 is provided with an axially through cavity 332, the inner wall of the cavity 332 is provided with a third guide groove (not shown in the figure), the synchronous belt 321 passes through the cavity 332, and the synchronous belt 321 is provided with a second slider 326 adapted to the third guide groove 310. As a result, the size of the driving wheel 323 and the tensioning wheel 324 can be made smaller, and when the cutting length is the same, the length requirement of the synchronous belt 321 is also lower, which can help reduce the volume and material cost of the entire paper cutting device. In addition, the second slider 326 can reduce the shaking of the synchronous belt 321 located inside the cavity 332, so that the operation of the synchronous belt 321 is more stable.

[0051] Both ends of the mounting frame 33 are provided with a photoelectric sensor 333 and a limit baffle 334. The photoelectric sensor 333 is connected to the first drive motor 322, and the limit baffle 334 is used to abut against the first slider 325. When the photoelectric sensor 333 senses that the roller cutter component 31 moves to the right position, the first drive motor 322 changes direction to drive the roller cutter component 31 to move. When the roller cutter component 31 moves to the right position, the limit baffle 334 abuts against the first slider 325 to help limit the paper cutting stroke of the roller cutter component 31.

[0052] The paper feeding mechanism 1 and the paper cutting mechanism 3 of this embodiment are arranged on a frame 4, and a bottom plate conveying mechanism (not shown in the figure) is provided below the frame 4. A first sensing switch (not shown in the figure) and a second sensing switch (not shown in the figure) are provided on the frame 4. The first sensing switch is used to sense the bottom plate conveyed by the bottom plate conveying mechanism, and is connected to the second driving motor 123. The second sensing switch is used to sense whether the bottom plate is covered with bottom paper A, and is connected to the first driving cylinder 23 and the first driving motor 322.

[0053] The working process of the automatic paper covering device of this embodiment is as follows:

[0054] The paper roll is sleeved on the paper roll shaft 112, and the two are fixed by the clamping component 113 and the positioning pin 114; the bottom paper A on the paper roll is pressed between the active roller 121 and the driven roller 122. When the first sensing switch senses the bottom plate conveyed by the bottom plate conveying mechanism, the second driving motor 123 drives the active roller 121 to rotate and feed the paper, and the bottom paper A is covered on the surface of the bottom plate conveyed from below; when the second sensing switch senses that the bottom paper A on the bottom plate is laid, the first driving cylinder 23 drives the paper pressing board 21 to press the bottom paper A on the surface of the paper guide board 22. The first drive motor 322 drives the synchronous belt 321 to move, so that the pressure wheel 312 rolls on the surface of the bottom paper A, and the roller cutter component 31 rotates to cut the paper; when the roller cutter 311 moves from the starting point of the blade groove 221 to the end point, the bottom paper A is cut, and the cut bottom paper A is transported to the next process with the bottom plate; at this time, the paper pressing mechanism cancels the paper pressing, and the roller cutter driving mechanism 32 drives the roller cutter component 31 back to the starting point; when the first induction switch senses the bottom plate transported by the bottom plate transport mechanism, the second drive motor 123 continues to drive the active roller rod 121 to rotate and feed the paper, and the paper is covered back and forth. When the paper roll on the paper feeding mechanism 1 is used up, the second drive cylinder 124 lifts the driven roller rod 122 and replaces a new paper roll on the paper roll shaft 112.

[0055] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. An automatic paper covering device, characterized in that: Including paper feeding mechanism, paper pressing mechanism and paper cutting mechanism, The paper feeding mechanism comprises a paper roll installation roller and a paper feeding roller, the paper roll installation roller is provided with a bottom paper, and the paper feeding roller is used to provide forward power for the bottom paper; The paper pressing mechanism comprises a paper pressing plate, a paper guide plate and a first driving cylinder, wherein the first driving cylinder is connected to the paper pressing plate and is used to drive the paper pressing plate to press the bottom paper onto the paper guide plate, and the paper guide plate is provided with a knife edge groove on a side of the paper pressing plate away from the paper feeding mechanism; The paper cutting mechanism comprises a rolling cutter component and a rolling cutter driving mechanism, the rolling cutter component comprises a rolling cutter blade, and a pressure wheel and a first compression spring respectively arranged on both sides of the rolling cutter blade, the pressure wheel is arranged on a side of the knife edge groove close to the paper feeding mechanism, and abuts against the upper surface of the bottom paper, the first compression spring abuts the rolling cutter blade against the groove wall of the knife edge groove, the rolling cutter driving mechanism is connected to the rolling cutter component and drives the rolling cutter component to reciprocate along the length direction of the knife edge groove; The hob component also includes a hob seat and a connecting seat, the hob seat is provided with a receiving groove opening downward, the hob seat is provided with a hob shaft spanning the receiving groove, the first compression spring is sleeved on the hob shaft, the hob blade and the pressure wheel are rotatably arranged on the hob shaft, the hob blade is connected to the pressure wheel and can float along the axial direction of the hob shaft; The connecting seat is provided with a accommodating cavity opening downwards, the upper part of the hob seat is floatingly arranged in the accommodating cavity, the top of the connecting seat is provided with an adjusting screw extending into the accommodating cavity and connected to the hob seat, and the outer sleeve of the adjusting screw is provided with a second compression spring abutting against the top surface of the hob seat; The connecting seat is provided with a vertically arranged first guide groove, which is communicated with the accommodating cavity. A positioning screw is passed through the hob seat, one end of the positioning screw abuts against the threaded surface of the adjusting screw, and the other end slides in cooperation with the first guide groove.

2. The automatic paper covering device according to claim 1, characterized in that: The paper cutting mechanism further comprises a mounting frame, a paper outlet is arranged on the mounting frame, the first driving cylinder is fixed to the top of the paper outlet, the paper pressing board is arranged at the bottom of the paper outlet, and the mounting frame is provided with a second guide groove along the length direction above the paper outlet; The roller drive mechanism includes a synchronous belt and a first drive motor, a drive wheel and a tension wheel. The first drive motor and the tension wheel are respectively arranged at two ends of the mounting frame. The drive wheel is connected to the drive end of the first drive motor. The synchronous belt is sleeved on the drive wheel and the tension wheel. The synchronous belt is provided with a first slider adapted to the second guide groove, and the roller component is fixed to the first slider.

3. The automatic paper covering device according to claim 2, characterized in that: An axially penetrating cavity is provided in the mounting frame, a third guide groove is provided on the inner wall of the cavity, the synchronous belt passes through the cavity, and a second sliding block matched with the third guide groove is provided on the synchronous belt.

4. The automatic paper covering device according to claim 2, characterized in that: Both ends of the mounting frame are provided with a photoelectric sensor and a limit baffle, the photoelectric sensor is connected to the first driving motor, and the limit baffle is used to abut against the first sliding block.

5. The automatic paper covering device according to claim 2, characterized in that: The paper roll installation roller and the paper feeding roller are arranged in sequence along the conveying direction of the base paper. The paper feeding roller includes an active roller rod and a driven roller rod. The active roller rod and the driven roller rod are arranged in parallel, and the active roller rod and the driven roller rod are in contact with the top surface and the bottom surface of the base paper respectively.

6. The automatic paper covering device according to claim 5, characterized in that: The paper feeding roller further comprises a second driving motor, a second driving cylinder and a roller rod connecting seat arranged opposite to each other, wherein the roller rod connecting seat is provided with an axial hole and a positioning groove, and the top of the positioning groove is open; Both ends of the active roller extend into the shaft hole, and the second driving motor is connected to the active roller to drive the active roller to rotate; The driven roller rod includes a roller rod sleeve and a driving shaft. The roller rod sleeve is sleeved outside the driving shaft. The roller rod sleeve can rotate relative to the driving shaft. Both ends of the driving shaft extend into the positioning groove, and the second driving cylinder is connected to the driving shaft for driving the driven roller rod to rise and fall.

7. The automatic paper covering device according to claim 5 or 6, characterized in that: The paper roll installation roller comprises a support, a paper roll shaft, a clamping component and a positioning latch. The paper roll shaft seat is arranged on the support, a paper roll formed by rolling up bottom paper is sleeved on the paper roll shaft, and the clamping component is connected to the outer wall of the paper roll shaft and clamped with two ends of the paper roll; The positioning latch is fixed to the paper roll shaft and abuts against an end of the clamping component away from the paper roll.

8. The automatic paper covering device according to claim 6, characterized in that: It also includes a frame, the paper feeding mechanism and the paper cutting mechanism are arranged on the frame, a bottom plate conveying mechanism is arranged below the frame, a first sensing switch and a second sensing switch are arranged on the frame, the first sensing switch is used to sense the bottom plate conveyed by the bottom plate conveying mechanism, and is connected to the second driving motor, and the second sensing switch is used to sense whether the bottom plate is covered with bottom paper, and is connected to the first driving motor and the first driving cylinder.

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