Cam angle folding device

Abstract

The present invention discloses a cam angle folding device, comprising a main body fixing seat, the main body fixing seat is fixedly connected with a driving member, the driving member is drivingly connected with an angle folding cam and a clamping cam which are located at the same rotation center; the angle folding cam is contact-connected with an angle folding roller, the angle folding roller is fixedly connected with an angle folding connecting member, the angle folding connecting member is fixedly connected with an angle folding rack, the angle folding rack is meshingly connected with a angle folding gear, and an angle folding knife is inserted into the angle folding gear; the clamping cam is contact-connected with a clamping roller, the clamping roller is fixedly connected with a clamping connecting member, and the clamping connecting member is fixedly connected with an upper pressing knife; the angle folding cam and the clamping cam are driven to rotate by a driving member, and at the same time, the angle folding knife rotates to fold the angle and the upper pressing knife descends to press the material; the use of the driving member is saved, thereby saving the waste of energy during use and reducing the production cost of the cam angle folding device; and the structure of the cam angle folding device is simplified, and the angle folding success rate of the cam angle folding device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of angle folding, and in particular to a cam angle folding device. Background Art

[0002] In the production process of lithium batteries, folding the edge of the battery is a very important process. The success or failure of folding not only affects the appearance of the battery, but also affects the subsequent processing steps. More importantly, it affects the quality of the battery. In the process of continuous production, if the defective rate is too high, it will directly affect the production capacity.

[0003] The existing lithium battery folding mechanism uses two folding knives, a knife platform, two motors, a cylinder, and two cams to complete the folding of the battery skirt. The upper and lower folding knives are used in conjunction with the knife platform to fold the angle. Two motors are required to control the upper and lower folding knives to provide power, two cams control the movement of the upper and lower folding knives, and the cylinder is used to control the stroke of the upper and lower folding knives. Since the mechanism is very complicated and many expensive standard parts such as cylinders and motors are used, the overall cost is high. In the actual production process, we found that due to too many parts in the mechanism, disassembly and assembly are complicated, especially during debugging, it is found that the mechanism is difficult to reach the ideal state, and the success rate of folding is always low, which further leads to low folding efficiency. Summary of the invention

[0004] The object of the present invention is to provide a cam angle device to solve the above problems.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A cam folding device comprises a main body fixing seat, a driving member is fixedly connected to the main body fixing seat, and the driving member is drivingly connected to a folding cam and a pressing cam at the same rotation center;

[0007] The folding cam is in contact with a folding roller, the folding roller is fixedly connected with a folding connecting piece, the folding connecting piece is fixedly connected with a folding rack, the folding rack is meshingly connected with a folding gear, and the folding gear is penetrated with a folding knife along its axial direction;

[0008] In the process that the contact position between the angle folding cam and the angle folding roller gradually transfers to the convex point of the angle folding cam, the angle folding roller rises and drives the angle folding rack to rise, and the angle folding rack rises and drives the angle folding gear to rotate, so as to drive the angle folding knife to rotate and fold the angle;

[0009] The pressing cam is in contact with a pressing roller, the pressing roller is fixedly connected to a pressing connector, and the pressing connector is fixedly connected to an upper pressing knife;

[0010] In the process that the contact position between the pressing cam and the pressing roller gradually moves away from the convex point of the pressing cam, the pressing roller descends to drive the upper pressing knife to descend and compact the material.

[0011] Optionally, the cam angle device further comprises a compression spring, one end of which is fixed to the compression connector, and the other end of which is fixed to the main body fixing seat;

[0012] When the contact position between the pressing cam and the pressing roller gradually moves away from the convex point of the pressing cam, the elastic force of the pressing spring drives the upper pressing knife to descend and press the material.

[0013] Optionally, a folding workbench is fixedly connected to the main body fixing seat; a lower pressing knife matching the upper pressing knife is fixedly connected to the folding workbench;

[0014] The folding workbench is provided with a folding knife through hole, the first end of the folding knife penetrates into the folding gear, and the second end of the folding knife extends out from the folding knife through hole.

[0015] Optionally, the cam folding device further comprises a clamping slider fixed on the clamping connector, wherein the clamping slider is slidably connected to a clamping slide rail; and the clamping slide rail is fixedly connected to the folding workbench.

[0016] Optionally, the cam angle bending device also includes an angle bending slider fixedly connected to the angle bending connector, and the angle bending slider is slidably connected to an angle sliding rail; a slide rail fixing member is also fixedly connected to the main body fixing seat, and the angle sliding rail is fixedly connected to the slide rail fixing member.

[0017] Optionally, the cam folding device further comprises a folding spring, one end of which is fixed to the folding connector, and the other end of which is fixed to the main body fixing seat.

[0018] Optionally, when the contact position between the folding cam and the folding roller is at a convex point position of the folding cam, the contact position between the pressing cam and the pressing roller is at a convex point position away from the pressing cam.

[0019] Optionally, the connection between the angle cam and the pressing cam is a fixed connection.

[0020] Optionally, the driving member is a servo motor.

[0021] Optionally, the angle cam has at least one convex point.

[0022] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0023] The present invention drives the folding cam and the pressing cam to rotate through a driving member, and simultaneously realizes the rotation of the folding knife to fold the angle and the descending of the upper pressing knife to press the material; it saves the use of the driving member, thereby saving the waste of energy during use and reducing the production cost of the cam folding device; and it simplifies the structure of the cam folding device and improves the folding success rate of the cam folding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0025] Figure 1 An exploded schematic diagram of a cam angle folding device provided by an embodiment of the present invention;

[0026] Figure 2 An overall structural diagram of a cam angle folding device provided by an embodiment of the present invention;

[0027] Figure 3 Another overall structural diagram of a cam angle bending device provided in an embodiment of the present invention.

[0028] In the figure:

[0029] 10. Main body fixing seat; 11. Slide rail fixing piece; 20. Driving piece; 31. Folding cam; 32. Folding connecting piece; 33. Folding roller; 34. Folding spring; 35. Folding rack; 36. Folding gear; 37. Folding knife; 38. Folding slider; 39. Folding slide rail; 41. Clamping cam; 42. Clamping connecting piece; 43. Clamping roller; 44. Clamping spring; 45. Clamping slider; 46. Clamping slide rail; 47. Upper pressing knife; 50. Folding workbench; 501. Folding knife through hole; 51. Lower pressing knife. DETAILED DESCRIPTION

[0030] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centrally arranged component.

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] Please refer to Figures 1 to 3 A cam folding device includes a main body fixing seat 10, a driving member 20 is fixedly connected to the main body fixing seat 10, and the driving member 20 is drivingly connected to a folding cam 31 and a pressing cam 41 at the same rotation center;

[0035] The folding cam 31 is in contact with a folding roller 33, the folding roller 33 is fixedly connected with a folding connector 32, the folding connector 32 is fixedly connected with a folding rack 35, the folding rack 35 is meshedly connected with a folding gear 36, and the folding gear 36 is penetrated with a folding knife 37 along its axial direction;

[0036] In the process that the contact position between the folding cam 31 and the folding roller 33 gradually moves toward the convex point of the folding cam 31, the folding roller 33 rises to drive the folding rack 35 to rise, and the folding rack 35 rises to drive the folding gear 36 to rotate, thereby driving the folding knife 37 to rotate to fold the corner;

[0037] The pressing cam 41 is in contact with a pressing roller 43, the pressing roller 43 is fixedly connected to a pressing connector 42, and the pressing connector 42 is fixedly connected to an upper pressing knife 47;

[0038] As the contact position between the pressing cam 41 and the pressing roller 43 gradually moves away from the convex point of the pressing cam 41 , the pressing roller 43 descends and drives the upper pressing knife 47 to descend and compact the material.

[0039] Specifically, the cam angle device of this embodiment further includes a compression spring 44, one end of the compression spring 44 is fixed to the compression connector 42, and the other end of the compression spring 44 is fixed to the main body fixing seat 10;

[0040] As the contact position between the pressing cam 41 and the pressing roller 43 gradually moves away from the convex point of the pressing cam 41 , the elastic force of the pressing spring 44 drives the upper pressing knife 47 to descend and press the material.

[0041] The pressure of the upper pressing knife 47 to press the material is provided by the elastic force of the pressing spring 44, and different pressures can be provided by replacing springs with different elastic coefficients, so that the pressure of the upper pressing knife 47 is adjustable to adapt to different usage conditions.

[0042] Specifically, the main body fixing seat 10 is fixedly connected with an angled workbench 50; the angled workbench 50 is fixedly connected with a lower pressing knife 51 matching the upper pressing knife 47;

[0043] A folding knife through hole 501 is provided on the folding workbench 50 , and the first end of the folding knife 37 penetrates into the folding gear 36 , and the second end of the folding knife 37 extends out from the folding knife through hole 501 .

[0044] Specifically, the cam folding device of this embodiment also includes a clamping slider 45 fixed on the clamping connecting piece 42, and the clamping slider 45 is slidably connected to the clamping slide rail 46; the clamping slide rail 46 is fixedly connected to the folding workbench 50; through the linear sliding action of the clamping slider 45 and the clamping slide rail 46, the moving path of the upper pressing knife 47 during lifting and lowering is stabilized, and the friction during the movement is reduced.

[0045] Specifically, the cam angle-folding device of this embodiment also includes an angle-folding slider 38 fixedly connected to the angle-folding connector 32, and the angle-folding slider 38 is slidably connected to the angle-folding slide rail 39; the main body fixed seat 10 is also fixedly connected to a slide rail fixing member 11, and the angle-folding slide rail 39 is fixedly connected to the slide rail fixing member 11; through the linear sliding action of the angle-folding slider 38 and the angle-folding slide rail 39, the moving route of the angle-folding rack 35 during lifting and lowering is stabilized, and the friction during the movement is reduced.

[0046] Specifically, the cam folding device of this embodiment also includes a folding spring 34, one end of which is fixed on the folding connector 32, and the other end of the folding spring 34 is fixed on the main body fixing seat 10; the elastic force of the folding spring 34 ensures the stability of the contact between the folding cam 31 and the folding roller 33.

[0047] Specifically, when the contact position between the folding cam 31 and the folding roller 33 is at the convex point of the folding cam 31 , the contact position between the pressing cam 41 and the pressing roller 43 is at the convex point away from the pressing cam 41 .

[0048] Specifically, the connection between the angle cam 31 and the pressing cam 41 is a fixed connection.

[0049] Specifically, the driving member 20 is a servo motor.

[0050] Specifically, the folding cam 31 has at least one convex point; the folding cam 31 may have one or more convex points; when the folding cam 31 has more than one convex point, the distances between each convex point and the center of rotation can be set to be unequal, so that each convex point corresponds to a bending angle of a material, thereby greatly improving the use range and applicability of the cam folding device.

[0051] The present embodiment provides a cam folding device, which drives the folding cam 31 and the pressing cam 41 to rotate through a driving member 20, and simultaneously realizes the rotation of the folding knife 37 to fold the corner and the descending of the upper pressing knife 47 to press the material; it saves the use of the driving member 20, thereby saving energy waste during use and reducing the production cost of the cam folding device; and it simplifies the structure of the cam folding device and improves the folding success rate of the cam folding device.

[0052] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cam angle device, characterized in that: It comprises a main body fixing seat, on which a driving member is fixedly connected, and the driving member is drivingly connected to an angle cam and a pressing cam located at the same rotation center; The folding cam is in contact with a folding roller, the folding roller is fixedly connected with a folding connecting piece, the folding connecting piece is fixedly connected with a folding rack, the folding rack is meshingly connected with a folding gear, and the folding gear is penetrated with a folding knife along its axial direction; In the process that the contact position between the angle folding cam and the angle folding roller gradually transfers to the convex point of the angle folding cam, the angle folding roller rises and drives the angle folding rack to rise, and the angle folding rack rises and drives the angle folding gear to rotate, so as to drive the angle folding knife to rotate and fold the angle; The pressing cam is in contact with a pressing roller, the pressing roller is fixedly connected to a pressing connector, and the pressing connector is fixedly connected to an upper pressing knife; When the contact position between the pressing cam and the pressing roller gradually moves away from the convex point of the pressing cam, the pressing roller descends to drive the upper pressing knife to descend and press the material; The main body fixing seat is fixedly connected with an angled workbench; the angled workbench is fixedly connected with a lower pressing knife matching the upper pressing knife; The folding workbench is provided with a folding knife through hole, the first end of the folding knife penetrates into the folding gear, and the second end of the folding knife extends out of the folding knife through hole; It also includes a compression spring, one end of which is fixed to the compression connector, and the other end of which is fixed to the main body fixing seat; When the contact position between the pressing cam and the pressing roller gradually moves away from the convex point of the pressing cam, the elastic force of the pressing spring drives the upper pressing knife to descend and press the material; It also includes a clamping slider fixed on the clamping connector, and the clamping slider is slidably connected to a clamping slide rail; the clamping slide rail is fixedly connected to the angle workbench.

2. The cam angle device according to claim 1, characterized in that: It also includes an angle slider fixedly connected to the angle connector, and the angle slider is slidably connected to an angle slide rail; the main body fixing seat is also fixedly connected to a slide rail fixing member, and the angle slide rail is fixedly connected to the slide rail fixing member.

3. The cam angle device according to claim 1, characterized in that: It also includes an angle spring, one end of which is fixed to the angle connecting piece, and the other end of which is fixed to the main body fixing seat.

4. The cam angle device according to claim 1, characterized in that: When the contact position between the folding cam and the folding roller is at the convex point position of the folding cam, the contact position between the pressing cam and the pressing roller is at the convex point position away from the pressing cam.

5. The cam angle device according to claim 4, characterized in that: The connection between the angle cam and the pressing cam is a fixed connection.

6. The cam angle device according to claim 1, characterized in that: The driving component is a servo motor.

7. The cam angle device according to claim 1, characterized in that: The angled cam is provided with at least one convex point.

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