A cushioning pad machine

Abstract

This utility model discloses a buffer paper pad machine, including a base, a paper guiding mechanism, a paper pressing mechanism, and a paper cutting mechanism. The output end of the paper cutting mechanism is provided with a paper outlet. The paper pressing mechanism includes a paper pressing servo driver, a paper pressing servo motor, an upper pressing gear unit, and a lower pressing gear unit. The paper pressing servo driver drives and controls the paper pressing servo motor to rotate, and the paper pressing servo motor drives the upper pressing gear unit and the lower pressing gear unit to rotate. The paper cutting mechanism includes a paper cutting servo driver, a paper cutting servo motor, and a cutting component. The paper cutting servo driver drives and controls the paper cutting servo motor to rotate, and the paper cutting servo motor drives the cutting component to move up and down to cut the buffer paper pad. When the torque of the paper pressing servo motor is overloaded, the paper pressing servo driver triggers an alarm to indicate that the paper pressing mechanism is jammed. When the torque of the paper cutting servo motor is overloaded, the paper cutting servo driver triggers an alarm to indicate that the paper outlet of the paper cutting mechanism is blocked, thus achieving double-layer protection and low cost.

Description

Technical Field

[0001] This utility model relates to the technical field of cushioning paper pad machines, and specifically to a cushioning paper pad machine. Background Technology

[0002] In existing technology, a cushioning paper pad machine folds and creases flat paper to form a three-dimensional cushioning paper pad, which is used to fill the gap between the item and the packaging container to protect the item. However, existing cushioning paper pad machines suffer from problems such as paper blockage (i.e., foreign objects blocking the paper outlet) or paper jams (i.e., the cushioning paper pad easily gets stuck in the gap between the upper and lower pressure gear units when they are discharging the paper). If paper blockage or paper jams are not stopped in time, the machine can easily be damaged. Existing cushioning paper pad machines rely on mechanical proximity switches such as microswitches to detect paper blockages and jams, resulting in numerous mechanical parts, a complex overall structure, difficulty in maintenance, and high economic costs. Utility Model Content

[0003] The present invention aims to provide a cushioning paper pad machine to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a buffer paper pad machine, comprising a machine base and a paper guiding mechanism, a paper pressing mechanism, and a paper cutting mechanism sequentially assembled on the machine base, wherein the output end of the paper cutting mechanism is provided with a paper outlet;

[0005] The paper pressing mechanism includes a paper pressing servo driver, a paper pressing servo motor, and an upper pressing gear unit and a lower pressing gear unit that mesh with each other. The paper pressing servo driver drives and controls the paper pressing servo motor to rotate, and the paper pressing servo motor drives the upper pressing gear unit and the lower pressing gear unit to rotate.

[0006] The paper cutting mechanism includes a paper cutting servo driver, a paper cutting servo motor, and a cutting component. The paper cutting servo driver drives and controls the paper cutting servo motor to rotate, and the paper cutting servo motor drives the cutting component to move up and down to cut the buffer paper pad.

[0007] When the torque of the paper pressing servo motor is overloaded, the paper pressing servo driver triggers an alarm to indicate that the paper is jammed at the paper pressing mechanism. When the torque of the paper cutting servo motor is overloaded, the paper cutting servo driver triggers an alarm to indicate that the paper is blocked at the paper outlet of the paper cutting mechanism.

[0008] Preferably, the parameters of the paper pressing servo motor are as follows: motor power range is 100-750 watts, speed range is 1400-3000 revolutions per minute, and torque range is 1.2-12 Nm; the output end of the paper pressing servo motor is connected to a paper pressing reducer, and the reduction ratio of the paper pressing reducer is 1:10-1:30.

[0009] Preferably, the parameters of the paper cutting servo motor are as follows: motor power range is 100-750 watts, speed range is 3000-6000 revolutions per minute, and torque range is 0.7-10 Nm; the output end of the paper cutting servo motor is connected to a paper cutting reducer, and the reduction ratio of the paper cutting reducer is 1:2.5-1:3.5.

[0010] Preferably, the upper pressure gear unit includes multiple coaxially connected gear sets, each gear set including two first gears and one second gear, the second gear being located between the two first gears, and in the axial direction, the teeth on the two first gears are overlapped, and the teeth on the first gear and the teeth on the second gear are interleaved.

[0011] Preferably, the lower pressing gear unit has the same structure as the upper pressing gear unit.

[0012] Preferably, the width and length of the teeth on the first gear are greater than the width and length of the teeth on the second gear.

[0013] Preferably, the cross-section of the teeth on the second gear is an isosceles triangle with an arc at the end.

[0014] Preferably, it also includes a control host with a display screen. The control host is electrically connected to the paper pressing servo driver and the paper cutting servo driver respectively. The paper pressing servo driver triggers an alarm and transmits the alarm signal to the display screen to indicate that the paper is jammed at the paper pressing mechanism. The paper cutting servo driver triggers an alarm and transmits the alarm signal to the display screen to indicate that the paper is blocked at the paper outlet of the paper cutting mechanism.

[0015] Preferably, the cutting assembly includes a fixed plate group, a cam, a slider, and a cutter. The fixed plate group has a paper output channel. The slider is slidably disposed on the side of the fixed plate group away from the paper pressing mechanism. The slider is connected to the paper cutting servo motor through the cam. The cutter is installed on the upper side of the slider. The cutter cooperates with the fixed plate group at the end of the paper output channel to form a paper cutting opening.

[0016] Preferably, the bottom of the base is provided with multiple support feet.

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

[0018] This invention utilizes the torque control of a paper-pressing servo motor. The servo motor drives the upper and lower pressing gear units to mesh and rotate, generating a meshing force that enables the buffer paper pad machine to perform paper feeding and pressing operations. When paper feeding is obstructed and a paper jam occurs, the meshing force of the gears exceeds the set torque value of the paper-pressing servo motor, causing torque overload. The paper-pressing servo driver triggers an alarm to indicate a paper jam at the pressing mechanism. Similarly, the invention uses the torque control of a paper-cutting servo motor. This servo motor drives the cutting component to move up and down to cut the buffer paper pad. If the cutting servo motor exceeds the set torque range when driving the cutting component to cut paper, torque overload occurs, and the paper-cutting servo driver triggers an alarm to indicate a paper blockage at the paper outlet of the cutting mechanism. By setting the torque of the paper pressing servo motor and the paper cutting servo motor, abnormal situations such as paper jams and blockages are detected, achieving double-layer protection. This eliminates the need to add mechanical proximity switches (such as micro switches) for detection. The machine relies solely on the torque output of the servo motor to determine whether paper jams or blockages occur during operation, thus simplifying the overall structure, reducing mechanical parts, making maintenance easier, and lowering economic costs. Attached Figure Description

[0019] Figure 1 This is a perspective view of an embodiment of the present invention.

[0020] Figure 2 This is a top view of an embodiment of the present invention.

[0021] Figure 3 This is a side view of an embodiment of the present invention.

[0022] Figure 4 This is a half-sectional view of an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the upper pressure gear unit of an embodiment of the present invention from one perspective.

[0025] Figure 7 This is a schematic diagram of the upper pressure gear unit of an embodiment of the present invention from another perspective.

[0026] Figure labels: 1 base, 2 paper guiding mechanism, 3 paper pressing mechanism, 31 paper pressing servo driver, 32 paper pressing servo motor, 33 paper pressing reducer, 34 upper pressing gear unit, 341 first gear, 342 second gear, 35 lower pressing gear unit, 4 paper cutting mechanism, 41 paper cutting servo driver, 42 paper cutting servo motor, 43 paper cutting reducer, 44 fixed plate assembly, 45 paper output channel, 46 cam, 47 slider, 48 cutter, 49 paper output port, 5 display screen, 6 support feet, 7 housing. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "paper press," "paper cut," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] See Figure 1-7 As shown, as an embodiment of the present utility model, a buffer paper pad machine is provided, including a base 1 and a paper guiding mechanism 2, a paper pressing mechanism 3, and a paper cutting mechanism 4 that are sequentially assembled on the base 1. The output end of the paper cutting mechanism 4 is provided with a paper outlet 49.

[0031] The paper guiding mechanism 2 is used to fold the paper from both sides to the middle and transport it to the paper pressing mechanism 3. The paper pressing mechanism 3 is used to squeeze the folded paper to make the paper wrinkle to form a cushioning paper pad. The paper cutting mechanism 4 is used to cut the cushioning paper pad.

[0032] The paper pressing mechanism 3 includes a paper pressing servo driver 31, a paper pressing servo motor 32, and an upper pressing gear unit 34 and a lower pressing gear unit 35 that mesh with each other. The paper pressing servo driver 31 is electrically connected to the paper pressing servo motor 32. The paper pressing servo driver 31 drives and controls the paper pressing servo motor 32 to rotate. The paper pressing servo motor 32 drives the upper pressing gear unit 34 and the lower pressing gear unit 35 to rotate. Specifically, the output end of the paper pressing servo motor 32 is connected to a paper pressing reducer 33. The output end of the paper pressing servo motor 32 is connected to the lower pressing gear unit 35 through the paper pressing reducer 33.

[0033] The paper cutting mechanism 4 includes a paper cutting servo driver 41, a paper cutting servo motor 42, and a cutting component. The paper cutting servo driver 41 is electrically connected to the paper cutting servo motor 42. The paper cutting servo driver 41 drives and controls the paper cutting servo motor 42 to rotate. The paper cutting servo motor 42 drives the cutting component to move up and down to cut the buffer paper pad. Specifically, the output end of the paper cutting servo motor 42 is connected to a paper cutting reducer 43, and the output end of the paper cutting servo motor 42 is connected to the cutting component through the paper cutting reducer 43.

[0034] When the torque of the paper pressing servo motor 32 is overloaded, the paper pressing servo driver 31 triggers an alarm to indicate that the paper pressing mechanism 3 is jammed. When the torque of the paper cutting servo motor 42 is overloaded, the paper cutting servo driver 41 triggers an alarm to indicate that the paper cutting mechanism 4 is blocked at the paper outlet 49.

[0035] This invention utilizes the torque control of the paper-pressing servo motor 32. The paper-pressing servo motor 32 drives the upper pressing gear unit 34 and the lower pressing gear unit 35 to mesh and rotate, generating a biting force. This enables the buffer paper pad machine to perform paper feeding and pressing operations. When paper feeding is obstructed and a paper jam occurs, the biting force of the gear rotation exceeds the torque value set by the paper-pressing servo motor 32, causing torque overload. The paper-pressing servo driver 31 triggers an alarm to indicate a paper jam at the paper pressing mechanism 3. Similarly, the invention utilizes the torque control of the paper-cutting servo motor 42. The paper-cutting servo motor 42 drives the cutting component to move up and down to cut the buffer paper pad. If the cutting servo motor 42 exceeds the torque setting range when driving the cutting component to cut paper up and down, torque overload occurs, and the paper-cutting servo driver 41 triggers an alarm to indicate a paper blockage at the paper outlet 49 of the paper cutting mechanism 4. By setting the torque of the two motors, the paper pressing servo motor 32 and the paper cutting servo motor 42, abnormal situations such as paper jams and paper blockages are judged, achieving double-layer protection. This eliminates the need to add mechanical proximity switches (such as micro switches) for judgment. The machine relies solely on the torque output of the servo motors to determine whether paper jams or paper blockages occur during operation, thus simplifying the overall structure, reducing mechanical parts, making maintenance easier, and lowering economic costs.

[0036] In this embodiment, the parameters of the paper pressing servo motor 32 are as follows: the motor power is 400 watts, the speed is 3000 revolutions per minute, and the torque is 1.3 Nm; the reduction ratio of the paper pressing reducer 33 is 1:30; since the parameters of the paper used in the current mainstream cushioning pads are in the range of 50-80 g / m², the paper pressing servo motor 32 is set with the above parameters so that when the current mainstream cushioning pads jam at the paper pressing mechanism 3, the paper pressing servo motor 32 will experience torque overload, which will cause the paper pressing servo driver 31 to trigger an alarm to indicate that the paper is jammed at the paper pressing mechanism 3.

[0037] In this embodiment, the parameters of the paper-cutting servo motor 42 are as follows: motor power is 251 watts, speed is 3000 revolutions per minute, and torque is 0.8 Nm; the reduction ratio of the paper-cutting reducer 43 is 1:3. Since the parameters of the paper used in the current mainstream cushioning pads range from 50 to 80 g / m², the paper-cutting servo motor 42 is set with the above parameters so that when the current mainstream cushioning pads experience paper blockage at the paper outlet 49, the paper-cutting servo motor 42 will experience torque overload, thereby triggering the paper-pressing servo driver 31 to trigger an alarm to indicate that there is a paper jam at the paper-pressing mechanism 3.

[0038] Of course, the parameters of the paper-pressing servo motor 32 and the paper-cutting servo motor 42 mentioned above can be adjusted according to the parameters of the actual paper used for the buffer pad, and are not limited here. For example, the parameter range of the paper-pressing servo motor is as follows: motor power range is 100-750 watts, speed range is 1400-3000 rpm, and torque range is 1.2-12 Nm; the reduction ratio range of the paper-pressing reducer is 1:10-1:30. Among them, the parameter range of the paper-cutting servo motor is as follows: motor power range is 100-750 watts, speed range is 3000-6000 rpm, and torque range is 0.7-10 Nm; the reduction ratio range of the paper-cutting reducer is 1:2.5-1:3.5.

[0039] In this embodiment, the upper pressure gear unit 34 includes multiple coaxially connected gear sets. Each gear set includes two first gears 341 and one second gear 342. The second gear 342 is located between the two first gears 341. In the axial direction, the teeth on the two first gears 341 overlap, and the teeth on the first gears 341 and the teeth on the second gear 342 are interleaved. This structure can engage the paper, effectively enhance the locking effect of the paper pad, prevent the cushioning paper pad from scattering, and improve the cushioning effect. The gear set is spliced ​​together by different gears of the single structure, which reduces the cost and optimizes the manufacturing process of the cushioning paper pad.

[0040] In this embodiment, the lower pressing gear unit 35 and the upper pressing gear unit 34 have the same structure, thereby ensuring the stability of the meshing between the lower pressing gear unit 35 and the upper pressing gear unit 34.

[0041] In this embodiment, the width and length of the teeth on the first gear 341 are greater than the width and length of the teeth on the second gear 342, respectively. Specifically, the cross-section of the teeth on the second gear 342 is an isosceles triangle with an arc at the end, so that the second gear 342 of the upper pressure gear unit 34 and the second gear 342 of the lower pressure gear unit 35 can achieve stable and reliable engagement of the paper pad, further preventing the buffer paper pad from spreading out and improving the buffering effect.

[0042] In this embodiment, a control host with a display screen 5 is also included. The control host is electrically connected to the paper pressing servo driver 31 and the paper cutting servo driver 41, respectively. The paper pressing servo driver 31 triggers an alarm and transmits the alarm signal to the display screen 5 to indicate a paper jam at the paper pressing mechanism 3. The paper cutting servo driver 41 triggers an alarm and transmits the alarm signal to the display screen 5 to indicate a paper blockage at the paper outlet 49 of the paper cutting mechanism 4. After an alarm signal is detected, the control host automatically controls the buffer paper pad machine to stop to ensure machine safety. At the same time, the control host can also display the corresponding paper jam or paper blockage location on the display screen 5 to facilitate maintenance.

[0043] In this embodiment, the cutting assembly includes a fixed plate group 44, a cam 46, a slider 47, and a cutter 48. The fixed plate group 44 has a paper output channel 45. The slider 47 is slidably mounted on the side of the fixed plate group 44 away from the paper pressing mechanism 3 via a slide rail. The slider 47 is connected to the paper cutting reducer 43 on the paper cutting servo motor 42 via the cam 46. The cutter 48 is mounted on the upper side of the slider 47. The cutter 48 cooperates with the fixed plate group 44 at the end of the paper output channel 45 to form a paper cutting opening. When the paper cutting servo motor 42 drives the cam 46 to rotate, thereby driving the slider 47 and the cutter 48 to move upward, the buffer paper pad is cut by the cutter 48 at the paper cutting opening. The structural design of this cutting assembly can ensure the cutting accuracy and reliability of the buffer paper pad and ensure the cutting effect.

[0044] In this embodiment, the bottom of the base 1 is provided with multiple support feet 6, and the buffer paper pad machine is stably placed on the table by the support of multiple support feet 6; a cover 7 is also installed on the top of the base 1 to cover the internal structure of the paper pressing mechanism 3 and the paper cutting mechanism 4, so as to play a protective role and improve the aesthetics.

[0045] The paper guiding mechanism 2 is existing technology, and the structure disclosed in Chinese patent CN111016293A can be referenced. It will not be described in detail here.

[0046] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A cushion pad machine characterized by: It includes a base and a paper guiding mechanism, a paper pressing mechanism, and a paper cutting mechanism assembled sequentially on the base. The output end of the paper cutting mechanism is provided with a paper outlet. The paper pressing mechanism includes a paper pressing servo driver, a paper pressing servo motor, and an upper pressing gear unit and a lower pressing gear unit that mesh with each other. The paper pressing servo driver drives and controls the paper pressing servo motor to rotate, and the paper pressing servo motor drives the upper pressing gear unit and the lower pressing gear unit to rotate. The paper cutting mechanism includes a paper cutting servo driver, a paper cutting servo motor, and a cutting component. The paper cutting servo driver drives and controls the paper cutting servo motor to rotate, and the paper cutting servo motor drives the cutting component to move up and down to cut the buffer paper pad. When the torque of the paper pressing servo motor is overloaded, the paper pressing servo driver triggers an alarm to indicate that the paper is jammed at the paper pressing mechanism. When the torque of the paper cutting servo motor is overloaded, the paper cutting servo driver triggers an alarm to indicate that the paper is blocked at the paper outlet of the paper cutting mechanism.

2. The cushioning pad machine of claim 1, wherein: The parameters of the paper pressing servo motor are as follows: motor power range is 100-750 watts, speed range is 1400-3000 revolutions per minute, and torque range is 1.2-12 Nm; the output end of the paper pressing servo motor is connected to a paper pressing reducer, and the reduction ratio of the paper pressing reducer ranges from 1:10 to 1:

30.

3. The cushioning pad machine of claim 1, wherein: The parameters of the paper cutting servo motor are as follows: motor power range is 100-750 watts, speed range is 3000-6000 rpm, and torque range is 0.7-10 Nm; the output end of the paper cutting servo motor is connected to a paper cutting reducer, and the reduction ratio of the paper cutting reducer ranges from 1:2.5 to 1:3.

5.

4. The cushioning pad machine of claim 1, wherein: The upper pressure gear unit includes multiple coaxially connected gear sets. Each gear set includes two first gears and one second gear. The second gear is located between the two first gears. In the axial direction, the teeth on the two first gears overlap and the teeth on the first gear and the teeth on the second gear are interleaved.

5. The cushioning pad machine of claim 4, wherein: The lower pressing gear unit has the same structure as the upper pressing gear unit.

6. The cushioning pad machine of claim 4, wherein: The width and length of the teeth on the first gear are greater than the width and length of the teeth on the second gear.

7. The cushioning pad machine of claim 4, wherein: The cross-section of the teeth on the second gear is an isosceles triangle with an arc at the end.

8. The cushioning pad machine of claim 1, wherein: It also includes a control host with a display screen. The control host is electrically connected to the paper pressing servo driver and the paper cutting servo driver respectively. The paper pressing servo driver triggers an alarm and transmits the alarm signal to the display screen to indicate that the paper is jammed at the paper pressing mechanism. The paper cutting servo driver triggers an alarm and transmits the alarm signal to the display screen to indicate that the paper is blocked at the paper outlet of the paper cutting mechanism.

9. The cushioning paper pad machine according to claim 1, characterized in that: The cutting assembly includes a fixed plate group, a cam, a slider, and a cutter. The fixed plate group has a paper output channel. The slider slides up and down on the side of the fixed plate group away from the paper pressing mechanism. The slider is connected to the paper cutting servo motor through the cam. The cutter is installed on the upper side of the slider. The cutter cooperates with the fixed plate group at the end of the paper output channel to form a paper cutting opening.

10. The cushioning pad machine of claim 1, wherein: The base is equipped with multiple support feet.

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