Paper feeding device of sheet wrapping machine

Abstract

A paper feeding device for a sheet wrapping machine relates to the field of battery plate packaging, and comprises a bracket, a paper feeding assembly and a paper supply assembly. The paper feeding assembly comprises a paper feeding roller, a paper feeding channel and a paper feeding clamp wheel. The paper feeding clamp wheel conveys a paper roll to the sheet wrapping assembly of the sheet wrapping machine, and the paper supply assembly is used to provide a paper roll to the paper feeding assembly. The bracket is also provided with a paper judging part for judging the length of the paper roll. The paper judging part can transmit a working signal to the paper feeding clamp wheel and the sheet wrapping assembly. When the paper judging part detects that the paper roll length is sufficient, it can control the paper feeding clamp wheel and the sheet wrapping assembly to operate normally, and control paper feeding by real-time monitoring of the paper roll length. When the paper roll length is insufficient, the paper feeding to the sheet wrapping machine is stopped, the sheet wrapping work of the sheet wrapping machine is suspended, and a paper change is reminded, thereby improving the sheet wrapping efficiency.

Description

Technical Field

[0001] The invention relates to the field of battery plate packaging, and in particular to a paper feeding device of a sheet wrapping machine. Background Art

[0002] During battery production, the positive and negative electrodes need to be wrapped in paper before they can be assembled into electrode groups. This process is called "wrapping" or "wrapping" and is generally performed by a wrapping machine. However, wrapping machines generally need to receive organized paper rolls in order to wrap the electrodes properly. Orderly feeding paper to the wrapping machine is a key step in ensuring wrapping efficiency. Traditionally, paper feeding is accomplished by feeding paper rolls into the wrapping machine in an orderly manner using paper feed rollers. When a paper roll needs to be replaced, workers manually remove the used paper roll and replace it with a new one. This paper replacement method can affect the overall wrapping efficiency depending on the worker's operation and proficiency. Summary of the Invention

[0003] The present invention provides a paper feeding device for a sheet wrapping machine, which controls paper feeding by real-time monitoring of the length of a paper roll. When the paper roll is insufficient, the paper feeding to the sheet wrapping machine is stopped, the sheet wrapping work of the sheet wrapping machine is suspended, and a reminder to change paper is given, thereby improving the sheet wrapping efficiency.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: a paper feeding device of a sheet wrapping machine, comprising a bracket, a paper feeding assembly and a paper supply assembly, the paper feeding assembly comprising a paper feeding roller, a paper feeding channel and a paper feeding clamp wheel, the paper feeding clamp wheel conveys the paper roll to the sheet wrapping assembly of the sheet wrapping machine, the paper supply assembly is used to provide the paper roll to the paper feeding assembly, wherein the bracket also has a paper judging part for judging the length of the paper roll, the paper judging part transmits a working signal to the paper feeding clamp wheel and the sheet wrapping assembly, and when the paper judging part detects that the paper roll length is sufficient, it controls the paper feeding clamp wheel and the sheet wrapping assembly to operate normally.

[0005] Preferably, the paper judging section includes a first sensor and a second sensor, and the first sensor and the second sensor are arranged with an interval above and below in a vertical direction.

[0006] Preferably, the paper judging portion is located above the paper feeding pinch wheel.

[0007] Preferably, the paper feed roller is connected to the bracket via a telescopic portion, and the telescopic portion can push the paper feed roller toward the paper supply assembly.

[0008] Preferably, the telescopic part includes a first cylinder, a connecting lever and a frame beam for supporting the connecting lever, the first cylinder is connected to the bracket, the frame beam has a through hole, the connecting lever is connected to the axial end of the first cylinder and extends horizontally outward through the through hole on the frame beam, and the paper feed roller is connected to the outer end of the connecting lever.

[0009] Preferably, the paper feed roller further comprises a second cylinder for pushing the waste paper core out of the paper feed roller.

[0010] Preferably, the paper supply assembly includes a paper support roller, and the paper support roller is at the same height as the paper feeding roller.

[0011] Preferably, the bracket also has a paper stabilizing portion to prevent the end of the paper roll placed on the paper roller from fluttering, and the paper stabilizing portion is composed of a roller rod group arranged vertically at intervals, and the roller rod group is composed of cylindrical rods arranged horizontally at intervals, and the roller rod group is connected to the shaft end of the motor.

[0012] Preferably, the roller rod group includes a variable diameter section and a constant diameter section, the diameter of the constant diameter section remains unchanged, and the diameter of the variable diameter section gradually decreases from the end of the constant diameter section toward the side away from the paper judging portion.

[0013] Preferably, the surface of the diameter-changing section has raised lines.

[0014] In summary, the present invention has the following beneficial effects.

[0015] 1. The present invention can detect the length of the paper roll through the paper judging part sensor, and link the paper feeding clamp wheel, the sheet wrapping assembly roller of the sheet wrapping machine, the first cylinder and the second cylinder to realize the paper roll length judgment and efficient paper changing process.

[0016] 2. The paper roll placed on the paper roller in advance is pushed by the rodless cylinder to improve the convenience of paper roll replacement and the efficiency of electrode plate wrapping.

[0017] 3. The roller rod groups arranged at the top and bottom can stabilize the end of the paper roll to prevent the end of the paper roll from fluttering due to movement.

[0018] 4. Providing raised patterns on the surface of the roller assembly can better achieve horizontal movement of the end of the paper roll by rotating the roller assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the paper feeding device and the sheet wrapping machine.

[0021] Figure 2 for Figure 1 Enlarged view of the center paper feed mechanism.

[0022] Figure 3 It is an oblique schematic diagram of the paper judging section.

[0023] Figure 4 It is an oblique schematic diagram of the paper stabilizing part.

[0024] Figure 5 This is the working state when the paper roll length is normal.

[0025] Figure 6 This is the working status of the paper judging unit when it detects that the paper roll is insufficient.

[0026] Figure 7 This is an enlarged schematic diagram of the telescopic part.

[0027] In the figure: 1. Bracket, 2. Paper feed roller, 3. Paper feed pinch wheel, 4. Second cylinder, 5. Paper support roller, 6. Rodless cylinder, 7. Paper judging part, 8. Paper stabilizing part, 9. Raised lines, 10. First cylinder. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figures 1 to 7 The figure shows a paper feeding device for a sheet wrapping machine, comprising a bracket 1, a paper feeding assembly, and a paper supply assembly. The paper feeding assembly includes a paper feed roller 2, a paper feed channel, and a paper feed pinch roller 3. The paper feed pinch roller 3 delivers a paper roll to the sheet wrapping assembly of the sheet wrapping machine. The paper supply assembly is used to provide the paper roll to the paper feeding assembly. Furthermore, the bracket 1 includes a paper judging unit 7 for determining the length of the paper roll. The paper judging unit 7 transmits an operating signal to the paper feed pinch roller 3 and the sheet wrapping assembly. When the paper judging unit 7 detects that the paper roll is of sufficient length, it controls the paper feed pinch roller 3 and the sheet wrapping assembly to operate normally. The paper judging unit 7 includes a first sensor and a second sensor, which are arranged vertically with a spacing above and below.

[0031] Specifically, the distance between the first sensor and the second sensor arranged vertically at intervals is the length of the paper roll required for plate wrapping, which can be an infrared sensor or a light sensor for detecting the length. The paper judging part 7 is electrically connected with the paper feeding clamp wheel 3 and the wrapping assembly of the wrapping machine. The paper judging part 7 monitors the length of the paper roll to be fed into the wrapping machine in real time when the paper feeding clamp wheel 3 and the wrapping assembly are working. When the first sensor and the second sensor on the upper and lower sides both detect the paper roll, as shown in FIG. Figure 5 As shown, it is determined that the paper roll length is sufficient and the paper feeding and wrapping processes are proceeding normally; when at least one of the first sensor and the second sensor on the upper and lower sides cannot detect the paper roll, the paper roll is exhausted, as shown Figure 6As shown, the paper judging unit 7 transmits a signal to the paper feeding clamp wheel 3 and the sheet wrapping assembly, the paper feeding clamp wheel 3 stops running, and the sheet wrapping machine stops wrapping, and a new paper roll needs to be replaced on the paper feeding roller 2.

[0032] The paper judging unit 7 is located above the paper feeding nip wheel 3 .

[0033] The paper feed roller 2 is connected to the bracket 1 via a telescopic portion, which can push the paper feed roller 2 toward the paper supply assembly. The telescopic portion includes a first cylinder 10, a connecting lever, and a support beam for supporting the connecting lever. The first cylinder 10 is connected to the bracket 1, and the support beam has a through hole. The connecting lever is connected to the axial end of the first cylinder 10 and extends horizontally outward through the through hole in the support beam. The paper feed roller 2 is connected to the outer end of the connecting lever. The first cylinder 10 can establish a connection with the paper judging unit 7. That is, when the paper judging unit 7 detects that the paper roll is insufficient, it transmits a signal to the paper feed clamping wheel 3 and the sheet wrapping assembly to stop working, and then transmits an operating signal to the first cylinder 10. The first cylinder 10 pushes the connecting lever horizontally, causing the paper feed roller 2 to move to the paper supply assembly, and the paper supply assembly adds a new paper roll to the paper feed roller 2.

[0034] The paper feed roller 2 also has a second cylinder 4 for pushing the waste paper core off the paper feed roller 2. The second cylinder 4 is also connected to the paper judging unit 7, the paper feed pinch roller 3, and the first cylinder 10. That is, when the paper judging unit 7 determines that the paper roll is insufficient, the paper feed pinch roller 3 receives a signal to stop rotating. Then, the first cylinder 10 pushes the paper feed roller 2 to move. At the same time, the second cylinder 4 receives a signal to start, pushing the waste paper roll core off the paper feed roller 2. In this way, a new paper roll can be added to the paper feed roller 2 from the paper supply assembly.

[0035] The paper supply assembly includes a paper roller 5, which is at the same height as the paper feed roller 2. A rodless cylinder 6 can also be installed on the paper roller 5. After receiving the signal that the second cylinder 4 has completed pushing out the waste paper roll, the rodless cylinder 6 pushes the new paper roll placed on the paper roller 5 onto the paper feed roller 2. In this way, when the new paper roll is pushed into the paper feed roller 2 by the rodless cylinder 6.

[0036] The bracket 1 also has a paper stabilizing portion 8 to prevent the end of the paper roll placed on the paper roller 5 from fluttering. The paper stabilizing portion 8 is composed of a roller rod group arranged vertically at intervals, and the roller rod group is composed of cylindrical rods arranged horizontally at intervals. The roller rod group is connected to the shaft end of the motor.

[0037] The roller assembly includes a variable diameter section and a constant diameter section. The constant diameter section has a constant diameter, while the variable diameter section gradually decreases in diameter from the end of the constant diameter section toward the side away from the paper judging unit 7. The gradually increasing diameter of the variable diameter section from the outer end toward the constant diameter section prevents the outer end of the paper roll from getting stuck and ensures that the end of the paper roll on the front side, about to enter the constant diameter section, is stable and does not flutter.

[0038] The surface of the variable diameter section has raised lines 9; the raised lines 9 can be inclined and extended thread-like lines. When the same group of roller rods rotate towards each other, the paper end is transported horizontally to the side of the equal diameter section, and finally moves from the gap between the equal diameter sections to the paper judging section 7.

[0039] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0040] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0041] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art based on the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A paper feeding device for a sheet wrapping machine, comprising a bracket (1), a paper feeding assembly and a paper supply assembly, wherein the paper feeding assembly comprises a paper feeding roller (2), a paper feeding channel and a paper feeding clamping wheel (3), wherein the paper feeding clamping wheel (3) feeds a paper roll to the sheet wrapping assembly of the sheet wrapping machine, and the paper supply assembly is used to provide the paper roll to the paper feeding assembly, characterized in that: The bracket (1) also has a paper judging part (7) for judging the length of the paper roll. The paper judging part (7) can transmit a working signal to the paper feeding clamping wheel (3) and the sheet wrapping assembly. When the paper judging part (7) detects that the paper roll length is sufficient, it can control the paper feeding clamping wheel (3) and the sheet wrapping assembly to operate normally. The paper judging part (7) includes a first sensor and a second sensor. The first sensor and the second sensor are arranged at intervals in the upper and lower directions. The paper judging part (7) is located above the paper feeding clamping wheel (3). The paper feeding roller (2) is connected to the bracket (1) through a telescopic part. The telescopic part can push the paper feeding roller (2) toward the paper feeding assembly. The telescopic part includes a first cylinder (10) and a connecting lever. The first cylinder (10) is connected to the bracket (1). The connecting lever is connected to the The shaft end of the first cylinder (10), the paper feed roller (2) is connected to the outer end of the connecting lever, the paper feed roller (2) is also provided with a second cylinder (4) for pushing the waste paper core out of the paper feed roller (2), the paper supply assembly includes a paper stand roller (5), the paper stand roller (5) is at the same height as the paper feed roller (2), the bracket (1) is also provided with a paper stabilizing portion (8) for preventing the end of the paper roll placed on the paper stand roller (5) from fluttering, the paper stabilizing portion (8) is composed of a roller rod group arranged vertically at intervals, the roller rod group is composed of cylindrical rods arranged horizontally at intervals, the roller rod group is connected to the shaft end of the motor, the roller rod group includes a variable diameter section and a constant diameter section, the diameter of the constant diameter section is unchanged, the diameter of the variable diameter section gradually decreases from the end of the constant diameter section toward the side away from the paper judging section (7), and the surface of the variable diameter section has raised lines (9).

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