Cutting device

Abstract

The utility model provides a cutting device which comprises a cutter assembly used for cutting a sheet conveyed in the first direction, the cutter assembly comprises a connecting frame, and a cam is arranged on the connecting frame; the cutter is movably arranged on the connecting frame in the second direction perpendicular to the sheet; the elastic piece can stretch out and draw back in the second direction, one end of the elastic piece is connected with the connecting frame, and the other end of the elastic piece is connected with the cutter and drives the cutter to move in the second direction; a cam groove is formed in the cam frame, and the cam extends into the cam groove and can move along the cam groove; and the first driving piece is connected with the cutter assembly, and the first driving piece drives the cutter assembly to move in the first direction, so that the cam is matched with the cam groove to guide the cutter to cut the sheet in the second direction and compress the elastic piece in the direction away from the sheet. According to the cutting device disclosed by the utility model, when the cutter is guided by the cam groove and needs to continuously move towards the sheet, the cutter can be retracted by a part of travel by utilizing the elastic piece, so that the cutter is prevented from being abraded, and the service life of the cutter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, and more specifically, to a cutting device. Background Art

[0002] In the related art, in the intermittent lamination process of the stacked sheets, the cutter needs to frequently cut the material film. In the process of cutting the material film, the composite module needs to stop working, and then the cutter cuts the film, and then the composite module composites the lithium strip and the copper foil. The composite module has a long idle time, which makes the composite and cutting process too slow, affecting the working efficiency of the equipment. In the prior art, a flying cutting structure can be used to cut the material film during the conveying process of the sheet to improve the cutting efficiency. However, the existing cam structure is difficult to control the pressure of the cutter during cutting, and it is easy for the cutter pressure to be too high, resulting in cutter wear, which affects the life of the cutter. Utility Model Content

[0003] The utility model provides a new technical solution for a cutting device, which can at least solve the problems of easy wear and short service life of the cutting blade in the prior art.

[0004] The utility model provides a cutting device, comprising: a cutter assembly, wherein the cutter assembly is used for cutting a sheet material conveyed along a first direction, and the cutter assembly comprises: a connecting frame, wherein a cam is provided on the connecting frame; a cutter, wherein the cutter is movably provided on the connecting frame along a second direction perpendicular to the sheet material; an elastic member, wherein the elastic member is retractable along the second direction, wherein one end of the elastic member is connected to the connecting frame, and the other end of the elastic member is connected to the cutter, and drives the cutter to move along the second direction; a cam frame, wherein a cam groove is provided on the cam frame, wherein the cam extends into the cam groove and can move along the cam groove; a first driving member, wherein the first driving member is connected to the cutter assembly, and wherein the first driving member drives the cutter assembly to move along the first direction, so that the cam cooperates with the cam groove to guide the cutter to cut the sheet material along the second direction and compress the movable end in a direction away from the sheet material.

[0005] Optionally, the elastic member includes one or more of a cylinder, a hydraulic cylinder and a spring.

[0006] Optionally, the cutter assembly further includes: a mounting frame, the mounting frame being connected to the first driving member, the connecting frame being movably disposed on the mounting frame along the second direction; and a second driving member, the second driving member being disposed on the mounting frame, the second driving member being connected to the connecting frame, and driving the connecting frame to move along the second direction.

[0007] Optionally, a first guide is provided on the cam frame, the first guide extends along the first direction, and a first matching portion is provided on the mounting frame, the first guide cooperates with the first matching portion to guide the mounting frame to move along the first direction.

[0008] Optionally, a second guide member is provided on the mounting frame, the second guide member extends along the second direction, a second matching portion is provided on the connecting frame, and the second guide member matches with the second matching portion to guide the connecting frame to move along the second direction.

[0009] Optionally, there are two connecting frames, the two connecting frames are spaced apart along the second direction, the two connecting frames are respectively a first connecting frame and a second connecting frame, the first connecting frame is connected to the cutter, the second driving member is connected to and drives the first connecting frame to move along the second direction, and the cutter assembly further includes: a pressing plate, the pressing plate is connected to the two second connecting frames and spaced apart from the cutter in the second direction to form a gap suitable for the sheet to pass through.

[0010] Optionally, a guide sleeve is provided on the mounting frame, a guide rod is provided on the connecting frame, the guide rod extends along the second direction, the guide rod is inserted into the guide sleeve and can move along the guide sleeve, and the cutter assembly also includes: an elastic member, the elastic member is sleeved on the guide rod, the elastic member is retractable in the second direction, one end of the elastic member is connected to the connecting frame, and the other end of the elastic member is connected to the guide sleeve.

[0011] Optionally, each of the connecting frames is provided with the cam, and the two cams are respectively a first cam and a second cam, the first connecting frame is provided with the first cam, and the second connecting frame is provided with the second cam, and the cam groove includes: a first guide portion, the first guide portion is used to guide the first cam to move; a second guide portion, the second guide portion is used to guide the second cam to move; wherein, the first guide portion and the second guide portion are spaced apart along the second direction, in the conveying direction of the sheet material, the first guide portion includes a first guide surface and a second guide surface which are arranged in sequence, and the second guide portion includes a third guide surface, a fourth guide surface and a fifth guide surface which are arranged in sequence, in the conveying direction of the sheet material, the first guide surface is inclined toward the second guide surface, the second guide surface is inclined toward a direction away from the second guide surface, the third guide surface is inclined toward the first guide surface, the fourth guide surface extends along the first direction, and the fifth guide surface is inclined toward a direction away from the first guide surface, and a tip convex to the second guide surface is formed at the connection between the first guide surface and the second guide surface, and the tip is opposite to the fourth guide surface.

[0012] Optionally, the cutting device further comprises: a support, wherein the first driving member is arranged on the support;

[0013] A third driving member is arranged on the support, the third driving member is connected to the cam frame, and drives the cam frame to move between a first state and a second state along a third direction, the first direction, the second direction and the third direction are perpendicular to each other, when the cam frame is in the first state, the cam groove is separated from the cam; when the cam frame is in the second state, the cam extends into the cam groove and can move along the cam groove.

[0014] Optionally, a third guide member is provided on the support, the third guide member extends along the third direction, a third matching portion is provided on the cam frame, and the third guide member cooperates with the third matching portion to guide the cam frame to move along the third direction.

[0015] According to the cutting device of the utility model, by setting a first driving member to drive the cutter assembly to move along the conveying direction of the sheet material, the speed of the cutter assembly can be equal to the conveying speed of the sheet material, so that the sheet material can be cut during the conveying process of the sheet material, and the composite module for composite sheets can be prevented from stopping, which is not only conducive to improving the cutting efficiency and production efficiency. In addition, an elastic member is provided to be connected to the cutter, and when the cutter needs to continue to move toward the sheet material under the guidance of the cam groove, the elastic member can be used to retract a part of the stroke to prevent the pressure between the cutter and the sheet material from being too large and damaging the sheet material and the cutter during the cutting process, which is conducive to improving the service life of the cutter.

[0016] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] Figure 1 is a stereoscopic diagram of a cutting device according to an embodiment of the utility model;

[0019] Figure 2 This is a front view of a cutting device according to an embodiment of the utility model;

[0020] Figure 3 is a side view of a cutting device according to an embodiment of the utility model;

[0021] Figure 4 is a top view of a cutting device according to an embodiment of the utility model;

[0022] Figure 5 is a stereoscopic diagram of a cutting device according to an embodiment of the utility model from another perspective;

[0023] Figure 6 It is a schematic diagram of the connection between the cam frame and the support in a cutting device according to an embodiment of the utility model;

[0024] Figure 7 yes Figure 6 A perspective view of the structure shown;

[0025] Figure 8 yes Figure 6 Side view of the structure shown.

[0026] Reference numerals

[0027] Cutting device 100;

[0028] Cutter assembly 10; connecting frame 11; first connecting frame 111; second connecting frame 112; guide rod 114; cam 12; first cam 121; second cam 122; cam connecting member 13; cutter 14; elastic member 15; mounting frame 16; second guide member 162; guide sleeve 163; second driving member 17; pressing plate 18; elastic member 19;

[0029] Cam frame 20; cam groove 21; first guide surface 212; second guide surface 213; third guide surface 215; fourth guide surface 216; fifth guide surface 217; first guide surface 219; second guide surface 220; third guide surface 221; first guide member 23;

[0030] A first driving member 30;

[0031] Support 40; third guide member 41;

[0032] The third driving member 50 . DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0038] The cutting device 100 according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0039] like Figures 1 to 8 As shown, the cutting device 100 according to the embodiment of the present utility model comprises: a cutter assembly 10 , a cam frame 20 and a first driving member 30 .

[0040] Specifically, the cutter assembly 10 is used to cut the sheet material conveyed along the first direction, and the cutter assembly 10 includes a connecting frame 11, a cutter 14 and an elastic member 15. A cam 12 is provided on the connecting frame 11. The cutter 14 is movably provided on the connecting frame 11 along a second direction perpendicular to the sheet material. The elastic member 15 is retractable along the second direction, one end of the elastic member 15 is connected to the connecting frame 11, and the other end of the elastic member 15 is connected to the cutter 14. A cam groove 21 is provided on the cam frame 20, and the cam 12 extends into the cam groove 21 and can move along the cam groove 21. The first driving member 30 is connected to the cutter assembly 10, and the first driving member 30 drives the cutter assembly 10 to move along the first direction, so that the cam 12 cooperates with the cam groove 21 to guide the cutter 14 to cut the sheet material along the second direction and compress the elastic member 15 in a direction away from the sheet material.

[0041] In other words, the cutting device 100 according to the embodiment of the utility model is mainly composed of a cutter assembly 10, a cam frame 20 and a first driving member 30. The cutter assembly 10 can cut the sheet during the conveying process of the sheet. The conveying direction of the sheet when passing through the cutting device 100 can be defined as the positive direction of the first direction. The sheet can include but is not limited to a film, and the cutter assembly 10 can be used to cut the film in the lamination process.

[0042] Specifically, the cutter assembly 10 can be mainly composed of a connecting frame 11, a cutter 14 and an elastic member 15. The connecting frame 11 can be used to carry and install the cutter 14 and the elastic member 15. The cutter 14 can move relative to the connecting frame 11 along a second direction, and the second direction can be a direction perpendicular to the sheet. The elastic member 15 can be extended and retracted along the second direction. The two ends of the elastic member 15 can be connected to the cutter 14 and the connecting frame 11 respectively. When the cutter 14 is subjected to external force, the elastic member 15 can be compressed.

[0043] In addition, a cam 12 may be connected to the connecting frame 11, and optionally, the cam 12 may be connected to the end of the connecting frame 11 through a cam connector 13. The cam frame 20 will not be displaced along the conveying direction of the sheet. The cam frame 20 may be provided with a cam groove 21 that can cooperate with the cam 12, and the cam groove 21 may extend substantially along the first direction. The cam 12 may extend into the cam groove 21 and may move along the cam groove 21.

[0044] The first driving member 30 can be connected to the cutter assembly 10 and drive the cutter assembly 10 to move along the first direction. Specifically, the first driving member 30 can be connected to the connecting frame 11. When the first driving member 30 drives the connecting frame 11 to move along the first direction, the cam groove 21 guides the cam 12 on the connecting member, so that the connecting member can approach or move away from the sheet along the second direction, thereby making the cutter 14 on the connecting frame 11 approach or move away from the sheet, and then cut the sheet.

[0045] Optionally, the first driving member 30 may include a motor and a lead screw, the lead screw may extend along the first direction, the cutter assembly 10 may be threadedly connected to the lead screw, and the motor may drive the lead screw to rotate so that the cutter assembly 10 moves along the first direction.

[0046] It should be noted that the greater the pressure on the sheet during cutting, the greater the tension of the sheet, and thus the easier it is to be damaged during cutting, affecting the yield. The greater the pressure on the sheet, the greater the reaction force on the cutter 14, and the easier it is to be worn.

[0047] The specific process of cutting the sheet material by the cutting device 100 of this embodiment is described in detail below.

[0048] The first driving member 30 drives the cutter assembly 10 to move forward in the first direction, so that the cutter assembly 10 accelerates forward in the first direction until the speed of the cutter assembly 10 is equal to the conveying speed of the sheet, and at the same time, the cam groove 21 cooperates with the cam 12 to guide the connecting frame 11, the cutter 14 and the elastic member 15 to approach the sheet along the second direction. In the process of the cutter 14 approaching the sheet, the cutter 14 can first press the sheet, and then under the guidance of the cam groove 21, the connecting frame 11 and the elastic member 15 need to continue to move toward the sheet, and because the cutter 14 has pressed the sheet and cannot continue to move, the cutter 14 can apply a reaction force to the elastic member 15, forcing the elastic member 15 to retract a part of the stroke, so as to avoid excessive cutting pressure causing damage to the sheet and wear of the cutter 14. Then the first driving member 30 continues to drive the cutter assembly 10 to move in the first direction, and the cam groove 21 guides the cam 12, the connecting frame 11, the cutter 14 and the elastic member 15 to move away from the sheet in the second direction, so that the cutter 14 is separated from the sheet.

[0049] In the above process, when the cutter 14 presses the sheet, the speed of the cutter 14 along the first direction is equal to that of the sheet. The magnitude of the reaction force on the cutter 14 is related to the position of the cutter 14 in the second direction. The closer the cutter 14 is to the sheet, the greater the reaction force on the cutter 14.

[0050] Therefore, according to the cutting device 100 of the embodiment of the utility model, by setting the first driving member 30 to drive the cutter assembly 10 to move along the conveying direction of the sheet, the speed of the cutter assembly 10 can be equal to the conveying speed of the sheet, so that the sheet can be cut during the conveying process of the sheet, and the composite module for composite sheets can be prevented from stopping, which is not only conducive to improving the cutting efficiency and production efficiency. In addition, the elastic member 15 is connected to the cutter 14, and when the cutter 14 needs to continue to move toward the sheet under the guidance of the cam groove 21, the elastic member 15 can be used to retract a part of the stroke to prevent the pressure between the cutter 14 and the sheet from being too large and damaging the sheet and the cutter 14 during the cutting process, which is conducive to improving the service life of the cutter 14.

[0051] It should be noted that the cutting device 100 of this embodiment is not only applicable to the lithium battery industry, but also to other film-forming related industries, which is not limited here.

[0052] In some optional embodiments, the elastic member 15 can apply a constant thrust F to the cutter 14 through the push rod, and the direction of the thrust F is toward the sheet. When the reaction force on the cutter 14 is greater than the thrust F, the cutter 14 can compress the push rod in a direction away from the cutter 14 under the action of the reaction force, so that the push rod retracts a part of the stroke, thereby reducing the reaction force on the cutter 14 and preventing the sheet from being stretched and damaged due to excessive tension of the sheet.

[0053] In some other optional embodiments, there may be a plurality of elastic members 15 , and the plurality of elastic members 15 may be arranged along the extension direction of the cutter 14 , so that the thrust from the elastic members 15 applied to the cutter 14 is more uniform.

[0054] According to an embodiment of the present invention, the elastic member 15 includes one or more of a cylinder, a hydraulic cylinder and a spring.

[0055] Specifically, when the elastic member 15 includes an air cylinder and / or a hydraulic cylinder, the air cylinder and the hydraulic cylinder may respectively have a push rod, and the air cylinder may apply a constant force to the push rod by air pressure, and the hydraulic cylinder may apply a constant force to the push rod by hydraulic pressure, so that the push rod applies a constant thrust F to the cutter 14. When the elastic member 15 is a spring, the spring may apply a constant thrust F to the cutter 14.

[0056] Under the action of the cam 12, the cutter 14 can approach the sheet along the second direction. In order to ensure that the cutter cuts the sheet completely, after the cam 12 drives the cutter 14 to abut against the sheet, the cutter 14 originally on one side of the sheet will continue to move toward the other side of the sheet. The reaction force on the cutter 14 will gradually increase, damaging the cutter.

[0057] In this embodiment, when the reaction force applied to the cutter 14 is greater than the pressure applied by the push rod or the spring, the cutter 14 can compress the push rod or the spring under the action of the reaction force, thereby reducing the reaction force applied to the cutter 14 and avoiding excessive tension of the sheet material that may damage the sheet material and the cutter 14.

[0058] According to some other embodiments of the utility model, the cutter assembly 10 further includes a mounting frame 16 and a second driving member 17. The mounting frame 16 is connected to the first driving member 30, and the connecting frame 11 is movably disposed on the mounting frame 16 along the second direction. The second driving member 17 is disposed on the mounting frame 16, and the second driving member 17 is connected to the connecting frame 11 and drives the connecting frame 11 to move along the second direction.

[0059] Specifically, the connecting frame 11, the cutter 14 and the elastic member 15 can be installed on the mounting frame 16. The first driving member 30 can be connected to the mounting frame 16 in the cutter assembly 10, and the connecting frame 11, the cutter 14 and the elastic member 15 can be moved along the first direction by driving the mounting frame 16 to move along the first direction.

[0060] The housing of the second driving member 17 can be fixed on the mounting frame 16, and the second driving member 17 can be connected to the connecting frame 11 to drive the connecting frame 11 to move in the second direction. During the cutting process, the second driving member 17 can drive the connecting frame 11 so that the cam 12 on the connecting frame 11 abuts against the groove wall surface in the cam groove 21 for guiding the movement of the cam 12, and when the cutter assembly 10 moves in the first direction, the cam 12 abuts against the above-mentioned groove wall surface to guide the cutter 14 to approach or move away from the sheet as required to achieve cutting.

[0061] Optionally, the second driving member 17 may include but is not limited to a cylinder.

[0062] In some specific embodiments of the present invention, a first guide member 23 is provided on the cam frame 20, and the first guide member 23 extends along the first direction. A first matching portion is provided on the mounting frame 16, and the first guide member 23 cooperates with the first matching portion to guide the mounting frame 16 to move along the first direction.

[0063] Specifically, a first guide structure may be connected between the cam frame 20 and the mounting frame 16. The first guide structure may include a first guide member 23 and a first matching portion. The first guide member 23 may extend along a first direction and be disposed on the cam frame 20. The first matching portion may be disposed on the mounting frame 16. The first guide member 23 may be connected to the first matching portion and guide the first matching portion to move along the first direction. Thus, the stability of the mounting frame 16 when moving along the first direction may be improved, and displacement of the mounting frame 16 relative to the cam frame 20 in directions other than the first direction may be avoided, which is beneficial to improving the stability and reliability of the connection between the cam 12 and the cam groove 21.

[0064] Optionally, the first guide member 23 may be a linear rail, the first matching portion may be a linear groove, the linear rail may extend into the linear groove, and the mounting frame 16 may slide along the linear rail.

[0065] According to some optional embodiments of the present invention, a second guide member 162 is provided on the mounting frame 16, and the second guide member 162 extends along the second direction. A second matching portion is provided on the connecting frame 11, and the second guide member 162 cooperates with the second matching portion to guide the connecting frame 11 to move along the second direction.

[0066] Specifically, a second guide structure may be connected between the mounting frame 16 and the connecting frame 11. The second guide structure may include a second guide member 162 and a second matching portion. The second guide member 162 may extend along the second direction and be provided on the mounting frame 16. The second matching portion may be provided on the connecting frame 11. The second guide member 162 may be connected to the second matching portion and guide the second matching portion to move along the second direction. Thus, the stability of the connecting frame 11 and the cutter 14 when they move along the second direction may be improved, and displacement of the connecting frame 11 and the cutter 14 relative to the mounting frame 16 in directions other than the second direction may be avoided, which is beneficial to improving the stability and reliability of the connection between the mounting frame 16 and the connecting frame 11 and the cutter 14, and improving the cutting quality.

[0067] Optionally, the second guide member 162 may be a linear rail, the second matching portion may be a linear groove, the linear rail may extend into the linear groove, and the connecting frame 11 may slide along the linear rail.

[0068] According to some other embodiments of the utility model, there are two connecting frames 11, and the two connecting frames 11 are spaced apart along the second direction. The two connecting frames 11 are respectively a first connecting frame 111 and a second connecting frame 112. The first connecting frame 111 is connected to the cutter 14, and the second driving member 17 is connected to and drives the first connecting frame 111 to move along the second direction. The cutter assembly 10 also includes a pressing plate 18, which is connected to the two second connecting frames 112 and is spaced apart from the cutter 14 in the second direction to form a gap suitable for the passage of sheets.

[0069] Specifically, two connection frames 11 may be spaced apart in the second direction. For the sake of convenience, the two connection frames 11 may be defined as a first connection frame 111 and a second connection frame 112 .

[0070] Each connecting frame 11 may be connected to a second driving member 17, and each connecting frame 11 may be provided with a cam 12, and the two cams 12 may be spaced apart along the second direction. Driven by the second driving member 17, the cam 12 on each connecting frame 11 may abut against two inner wall surfaces of the cam groove 21, and the two inner wall surfaces may be spaced apart along the second direction to respectively guide the two connecting frames 11 to move in the second direction.

[0071] The cutter 14 and the elastic member 15 may be arranged on the first connecting frame 111, and a pressing plate 18 may be arranged on the second connecting frame 112, and the pressing plate 18 may move with the second connecting frame 112. The pressing plate 18 and the cutter 14 may be spaced apart in the second direction to form a gap, and the sheet may pass through the gap. During the cutting process, the cutter 14 may cooperate with the pressing plate 18 to press the sheet.

[0072] Under the action of the cam 12, in order to ensure that the cutter can completely cut the sheet, after the cam 12 drives the cutter 14 to contact the sheet, the cutter 14 originally on one side of the sheet will continue to move toward the other side of the sheet, that is, toward the pressure plate 18. The pressure plate 18 will exert a reaction force on the cutter, and the reaction force will gradually increase, damaging the cutter. The elastic member 15 can reduce the reaction force.

[0073] In this embodiment, the cutter assembly 10 includes two connecting frames 11, a cutter 14 is arranged on one of the connecting frames 11, and a pressure plate 18 is arranged on the other connecting frame 11, so that the cutter 14 and the pressure plate 18 can cooperate to clamp and then cut the sheet material, and the pressure plate 18 is used to support the sheet material on the side of the sheet material away from the cutter 14, which can help reduce the tension of the sheet material and avoid excessive tension of the sheet material causing damage to the sheet material and wear of the cutter 14.

[0074] In some specific embodiments of the utility model, a guide sleeve 163 is provided on the mounting frame 16, and a guide rod 114 is provided on the connecting frame 11. The guide rod 114 extends along the second direction. The guide rod 114 is inserted into the guide sleeve 163 and can move along the guide sleeve 163. The cutter assembly 10 also includes an elastic member 19, which is sleeved on the guide rod 114. The elastic member 19 is retractable in the second direction. One end of the elastic member 19 is connected to the connecting frame 11, and the other end of the elastic member 19 is connected to the guide sleeve 163.

[0075] Specifically, a guide sleeve 163, a guide rod 114 and an elastic member 19 may be connected between the mounting frame 16 and the connecting frame 11. The guide sleeve 163 may be arranged on the mounting frame 16, and a guide hole may be arranged on the guide sleeve 163 to penetrate the guide sleeve 163 along the second direction. Both ends of the guide rod 114 may be connected to the connecting frame 11, and the guide rod 114 may be inserted into the guide hole and may slide along the guide hole. The elastic member 19 may be sleeved on the guide rod 114, and the elastic member 19 may be retractable in the second direction. One end of the elastic member 19 may be connected to the connecting frame 11, and the other end of the elastic member 19 may be connected to the end face of the guide sleeve 163.

[0076] In this embodiment, the guide rod 114 is used to cooperate with the guide sleeve 163, and the elastic member 19 is connected between the connecting frame 11 and the guide sleeve 163. The elastic force of the elastic member 19 can be used to press the cam 12 against the inner wall surface of the cam groove 21, forcing the cam 12 to move along the inner wall surface of the cam groove 21, thereby guiding the connecting frame 11 to move along the second direction as required.

[0077] Optionally, the guide sleeve 163, the guide rod 114 and the two elastic members 19 may constitute a guide assembly, and in each guide assembly, in the second direction, the two elastic members 19 may be disposed at both ends of the guide sleeve 163. The number of guide assemblies may be multiple, for example, the number of guide assemblies may be four, and in the extending direction of the cutter 14, the guide assemblies may be disposed at both ends of each connecting frame 11.

[0078] According to some optional embodiments of the utility model, each connecting frame 11 is provided with a cam 12, the two cams 12 are respectively a first cam 121 and a second cam 122, the first connecting frame 111 is provided with a first cam 121, the second connecting frame 112 is provided with a second cam 122, and the cam groove 21 includes a first guide portion and a second guide portion.

[0079] The first guide portion is used to guide the movement of the first cam 121. The second guide portion is used to guide the movement of the second cam 122. The first guide portion 212 is spaced apart from the second guide portion along the second direction. In the conveying direction of the sheet, the first guide portion includes a first guide surface 212 and a second guide surface 213 arranged in sequence, and the second guide portion includes a third guide surface 215, a fourth guide surface 216 and a fifth guide surface 217 arranged in sequence. In the conveying direction of the sheet, the first guide surface 212 is inclined toward the second guide portion, the second guide surface 213 is inclined toward a direction away from the second guide portion, the third guide surface 215 is inclined toward the first guide portion, the fourth guide surface 216 extends along the first direction, and the fifth guide surface 217 is inclined toward a direction away from the first guide portion. A tip 218 protruding toward the second guide portion is formed at the connection between the first guide surface 212 and the second guide surface 213, and the tip 218 is opposite to the fourth guide surface 216.

[0080] Specifically, for ease of explanation, the cam 12 on the first connecting frame 111 can be defined as the first cam 121, and the cam 12 on the second connecting frame 112 can be defined as the second cam 122. The guide groove can be mainly composed of a first guide portion and a second guide portion. The first guide portion and the second guide portion can be two inner wall surfaces spaced apart along the second direction in the guide groove. Under the action of the second driving member 17 corresponding to the first connecting frame 111, the first cam 121 can be pressed against the first guide portion and can move along the first guide portion. Under the action of the second driving member 17 corresponding to the second connecting frame 112, the second cam 122 can be pressed against the second guide portion and can move along the second guide portion.

[0081] The first guide portion may include a first guide surface 212 and a second guide surface 213, which are arranged in sequence and connected to each other along the positive direction of the first direction. In the positive direction of the first direction, the first guide surface 212 may extend obliquely toward the second guide portion, and the second guide surface 213 may extend obliquely toward a direction away from the second guide portion. A tip 218 pointing to the second guide portion may be formed at the connection between the first guide surface 212 and the second guide surface 213.

[0082] The second guide portion may include a third guide surface 215, a fourth guide surface 216, and a fifth guide surface 217. The third guide surface 215, the fourth guide surface 216, and the fifth guide surface 217 are sequentially connected along the positive direction of the first direction. In the positive direction of the first direction, the third guide surface 215 may extend obliquely toward the first guide portion, the fourth guide surface 216 may be parallel to the first direction, and the fifth guide surface 217 may extend obliquely toward a direction away from the first guide portion.

[0083] In the second direction, the tip 218 can be arranged opposite to the fourth guide surface 216, at least a portion of the first guide surface 212 can be arranged opposite to the fourth guide surface 216, at least a portion of the second guide surface 213 can be arranged opposite to the fourth guide surface 216, the third guide surface 215 can be staggered with the first guide surface 212, and the fifth guide surface 217 can be staggered with the second guide surface 213.

[0084] The specific process of the cam groove 21 and the cam 12 cooperating to guide the cutter 14 to move in this embodiment is described in detail below.

[0085] As the cutter assembly 10 moves forward along the first direction, when the second cam 122 moves along the third guide surface 215, the first cam 121 has not reached the first guide surface 212. Under the guidance of the second cam 122, the second connecting frame 112 and the pressure plate 18 can approach the first connecting frame 111 along the second direction.

[0086] Then, the second cam 122 enters the fourth guide surface 216 and moves along the fourth guide surface 216, and the first cam 121 moves along the first guide surface 212. Under the guidance of the second cam 122, the second connecting frame 112 and the pressure plate 18 remain stationary in the second direction. Under the guidance of the first cam 121, the first connecting frame 111 and the cutter 14 approach the second connecting frame 112 along the second direction, and cooperate with the pressure plate 18 to clamp the sheet before the first cam 121 is guided to the tip 218.

[0087] Next, when the first cam 121 is guided to the tip 218, the cutter 14 and the pressure plate 18 keep pressing the sheet and not moving. The reaction force exerted by the cutter 14 on the elastic member 15 can drive the movable end to retreat a part of the stroke in the second direction, thereby preventing the cutter 14 from being subjected to excessive pressure and wearing the cutter 14.

[0088] Finally, when the first cam 121 passes over the tip 218 and enters the second guide surface 213, the second cam 122 still moves along the fourth guide surface 216. Under the guidance of the first cam 121, the first connecting frame 111 and the cutter 14 move away from the second connecting frame 112 along the second direction, so that the cutter 14 is separated from the sheet.

[0089] Finally, the second cam 122 enters the fifth guide surface 217 and moves along the fifth guide surface 217. Under the guidance of the second cam 122, the second connecting frame 112 and the pressing plate 18 move away from the first connecting frame 111 in the second direction, so that the pressing plate 18 is separated from the sheet.

[0090] In this embodiment, by cooperating with the corresponding cams 12 in the first guide portion and the second guide portion, the pressure plate 18 can be firstly brought into contact with the sheet during the cutting process, and then the cutter 14 and the pressure plate 18 can clamp the sheet. At the same time, the elastic member 15 is retreated in the process of being guided to the tip 218 by the first cam 121. In the process of the cutter 14 cutting the sheet, the pressure on the cutter 14 can be reduced, the wear of the cutter 14 can be avoided, and the service life of the cutter 14 can be increased.

[0091] In the first direction, a first guide surface 219 may be provided at one end of the first guide surface 212 away from the second guide surface 213 , a second guide surface 220 may be provided at one end of the second guide surface 213 away from the first guide surface 212 , and a third guide surface 221 may be provided at one end of the third guide surface 215 away from the fourth guide surface 216 .

[0092] When the first cam 121 moves along the first guide surface 219, the second cam 122 can move along the third guide surface 221. At this time, the interval between the two cams 12 is large, and the cutter 14 and the pressure plate 18 are not in contact with the sheet, which can be used to accelerate the cutter assembly 10, and accelerate the speed of the cutter assembly 10 from zero to the same speed as the sheet conveying speed. When the second cam 122 moves along the fifth guide surface 217, the first cam 121 can move along the second guide surface 220. At this time, the cutter 14 and the pressure plate 18 are not in contact with the sheet, which can be used to decelerate the cutter assembly 10, and decelerate the speed of the cutter assembly 10 from the same speed as the sheet conveying speed to zero.

[0093] According to some other embodiments of the present invention, the cutting device 100 further includes: a support 40 and a third driving member 50 .

[0094] The first driving member 30 is disposed on the support 40. The third driving member 50 is disposed on the support 40, and the third driving member 50 is connected to the cam frame 20, and drives the cam frame 20 to move between the first state and the second state along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other. When the cam frame 20 is in the first state, the cam groove 21 is separated from the cam 12. When the cam frame 20 is in the second state, the cam 12 extends into the cam groove 21 and can move along the cam groove 21.

[0095] Specifically, the support 40 may be a fixed structure in the cutting device 100, the first driving member 30 and the third driving member 50 may be mounted on the support 40, and the third driving member 50 may be connected to the cam frame 20 to drive the cam frame 20 to move along the third direction. The first direction, the second direction, and the third direction may be perpendicular to each other, and the cutter 14 and the pressing plate 18 may extend along the third direction, respectively.

[0096] Optionally, the third driving member 50 may be a cylinder.

[0097] When the third driving member 50 drives the cam frame 20 to move along the third direction, the cam frame 20 can switch between the first state and the second state. When the cam frame 20 switches to the first state, the cam groove 21 can be separated from the cam 12, and when the cam frame 20 switches to the second state, the cam 12 can extend into the cam groove 21 and move along the cam groove 21.

[0098] During the cutting process, in the initial state, the elastic member 15 and the second driving member 17 can both be in the extended state, and the cam frame 20 is in the first state. Then the third driving member 50 can drive the cam frame 20 to move to the second state, so that the cam 12 on the connecting frame 11 extends into the cam groove 21. Then, under the drive of the second driving frame, the cam 12 is always in contact with the inner wall surface of the cam groove 21 under the pressure of the elastic member 19, thereby guiding the cutter 14 to cut the slice. After the cutting is completed, the elastic member 15 and the second driving member 17 can be retracted. At this time, under the action of the elastic member 19, the cam 12 is still pressed against the inner wall surface of the cam groove 21. Then the third driving member 50 drives the cam frame 20 to move to the first state, so that the cam 12 is separated from the cam groove 21. Since the cam 12 loses the limit of the cam groove 21, the two connecting frames 11 can move in a direction away from each other under the action of the corresponding elastic member 19. Finally, the first driving member 30 can drive the cutter assembly 10 back to the initial position in the reverse direction of the first direction to wait for the next cutting.

[0099] In some specific embodiments of the present invention, a third guide member 41 is provided on the support 40, and the third guide member 41 extends along the third direction. A third matching portion is provided on the cam frame 20, and the third guide member 41 cooperates with the third matching portion to guide the cam frame 20 to move along the third direction.

[0100] Specifically, the support 40 and the cam frame 20 bracket are difficult to be connected with a third guide structure, and the third guide structure may include a third guide member 41 and a third matching portion. The third guide member 41 can extend along the third direction and be arranged on the support 40. The third matching portion can be arranged on the cam frame 20. The third guide member 41 can be connected to the third matching portion and guide the third matching portion to move along the third direction. Thereby, the stability of the cam frame 20 when it moves along the third direction can be improved, and the cam frame 20 can be prevented from being displaced relative to the cam frame 20 support 40 in directions other than the third direction. The pillow cam 12 can extend into the cam groove 21, which is beneficial to improving the stability and reliability of the connection between the cam 12 and the cam groove 21.

[0101] Optionally, the third guide member 41 may be a guide rod, the third matching portion may be a guide hole, the guide rod may extend into the guide hole, and the cam frame 20 may slide along the guide rod.

[0102] In summary, the cutting device 100 of the embodiment of the utility model can make the speed of the cutter assembly 10 equal to the conveying speed of the sheet by setting the first driving member 30 to drive the cutter assembly 10 to move along the conveying direction of the sheet, so as to achieve the cutting of the sheet during the conveying process of the sheet, and avoid the shutdown of the composite module for composite sheets, which is not only conducive to improving the cutting efficiency and production efficiency. In addition, the elastic member 15 is connected to the cutter 14, and when the cutter 14 needs to continue to move toward the sheet under the guidance of the cam groove 21, the elastic member 15 can be used to retract a part of the stroke to prevent the pressure between the cutter 14 and the sheet from being too large and damaging the sheet and the cutter 14 during the cutting process, which is conducive to improving the service life of the cutter 14.

[0103] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A cutting device, characterized in that: include: A cutter assembly, the cutter assembly is used to cut the sheet material conveyed along the first direction, the cutter assembly comprises: A connecting frame, wherein a cam is provided on the connecting frame; A cutter, the cutter being movably disposed on the connecting frame along a second direction perpendicular to the sheet; an elastic member, the elastic member being retractable along the second direction, one end of the elastic member being connected to the connecting frame, and the other end of the elastic member being connected to the cutter; A cam frame, wherein the cam frame is provided with a cam groove, and the cam extends into the cam groove and can move along the cam groove; A first driving member is connected to the cutter assembly, and the first driving member drives the cutter assembly to move along the first direction, so that the cam cooperates with the cam groove to guide the cutter to cut the sheet along the second direction and compress the elastic member in a direction away from the sheet.

2. The cutting device according to claim 1, characterized in that The elastic member includes one or more of a cylinder, a hydraulic cylinder and a spring.

3. The cutting device according to claim 1, characterized in that: The cutter assembly also includes: A mounting frame, the mounting frame is connected to the first driving member, and the connecting frame is movably disposed on the mounting frame along the second direction; The second driving member is disposed on the mounting frame, the second driving member is connected to the connecting frame, and drives the connecting frame to move along the second direction.

4. The cutting device according to claim 3, characterized in that: The cam frame is provided with a first guide member, the first guide member extends along the first direction, the mounting frame is provided with a first matching portion, the first guide member matches with the first matching portion to guide the mounting frame to move along the first direction.

5. The cutting device according to claim 3, characterized in that: The mounting frame is provided with a second guide member, the second guide member extends along the second direction, the connecting frame is provided with a second matching portion, the second guide member matches with the second matching portion to guide the connecting frame to move along the second direction.

6. The cutting device according to claim 3, characterized in that: The number of the connecting frames is two, the two connecting frames are spaced apart along the second direction, the two connecting frames are respectively a first connecting frame and a second connecting frame, the first connecting frame is connected to the cutter, the second driving member is connected to and drives the first connecting frame to move along the second direction, and the cutter assembly further comprises: A pressing plate is connected to the two second connecting frames and is spaced apart from the cutter in the second direction to form a gap suitable for the sheet to pass through.

7. The cutting device according to claim 3, characterized in that: The mounting frame is provided with a guide sleeve, the connecting frame is provided with a guide rod, the guide rod extends along the second direction, the guide rod is inserted into the guide sleeve and can move along the guide sleeve, and the cutter assembly further includes: An elastic member, wherein the elastic member is sleeved on the guide rod, the elastic member is retractable in the second direction, one end of the elastic member is connected to the connecting frame, and the other end of the elastic member is connected to the guide sleeve.

8. The cutting device according to claim 6, characterized in that Each of the connecting frames is provided with the cam, the two cams are respectively a first cam and a second cam, the first connecting frame is provided with the first cam, the second connecting frame is provided with the second cam, and the cam groove comprises: a first guide portion, the first guide portion being used to guide the first cam to move; a second guide portion, the second guide portion being used to guide the second cam to move; The first guide portion and the second guide portion are spaced apart from each other along the second direction. In the conveying direction of the sheet material, the first guide portion includes a first guide surface and a second guide surface which are arranged in sequence, and the second guide portion includes a third guide surface, a fourth guide surface and a fifth guide surface which are arranged in sequence. In the conveying direction of the sheet, the first guide surface is inclined toward the second guide portion, the second guide surface is inclined toward a direction away from the second guide portion, the third guide surface is inclined toward the first guide portion, the fourth guide surface extends along the first direction, the fifth guide surface is inclined toward a direction away from the first guide portion, and a tip protruding toward the second guide portion is formed at the connection between the first guide surface and the second guide surface, and the tip is opposite to the fourth guide surface.

9. The cutting device according to claim 1, characterized in that: Also includes: a support, wherein the first driving member is disposed on the support; a third driving member, the third driving member being disposed on the support, the third driving member being connected to the cam frame and driving the cam frame to move between a first state and a second state along a third direction, the first direction, the second direction and the third direction being perpendicular to each other, When the cam frame is in the first state, the cam groove is separated from the cam; When the cam holder is in the second state, the cam extends into the cam groove and is movable along the cam groove.

10. The cutting device according to claim 9, characterized in that The support is provided with a third guide member, the third guide member extends along the third direction, the cam frame is provided with a third matching portion, the third guide member matches with the third matching portion to guide the cam frame to move along the third direction.

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