Film cutting apparatus

Abstract

The application provides a film cutting device, and relates to the technical field of lithium battery film cutting devices. The film cutting device comprises a main unit, a cutter support, a cutter clamping plate, a cutter and a protective cover. The cutter support is fixedly arranged on the main unit. The cutter clamping plate is detachably arranged on the cutter support. The cutter is clamped between the cutter clamping plate and the cutter support, and at least part of the blade of the cutter is exposed. The protective cover is detachably arranged on the cutter clamping plate. When the protective cover is arranged on the cutter clamping plate, the blade of at least the exposed part of the cutter is hidden in the protective cover. During the dismounting and mounting of the cutter, the operator does not directly contact the cutter, thereby effectively improving the safety of the operator and reducing the risk of injury of the operator.

Description

Technical Field

[0001] This application relates to the technical field of lithium battery film cutting equipment, specifically to a film cutting device. Background Technology

[0002] In the lithium battery industry, prismatic cells need to be coated with an insulating film to ensure insulation. The coating process requires a cutter to cut the insulating film after each coating, with a single cutter needing to perform tens of thousands of cuts. Prolonged use leads to blade wear, necessitating manual replacement.

[0003] Currently, membrane cutting equipment on the market has a compact and complex structure with narrow maintenance space. When manually changing the blade, the operator can only use the packaging paper to replace the blade. Due to the narrow space and the sharp blade, if the packaging paper is damaged due to operational errors, the operator is very likely to be injured, threatening the operator's personal safety. Utility Model Content

[0004] In view of the problems existing in the prior art, this application provides a membrane cutting device to improve the problem that the cutter is easily exposed when changing the cutter, which makes it easy for operators to accidentally touch the cutter and get injured.

[0005] To achieve the above and other related objectives, this application provides a membrane material cutting device, which includes a main unit, a tool holder, a tool clamping plate, a cutter, and a protective cover. The tool holder is fixedly disposed on the main unit; the tool clamping plate is detachably disposed on the tool holder; the cutter is clamped between the tool clamping plate and the tool holder, and at least a portion of the cutting edge of the cutter is exposed; the protective cover is detachably installed on the tool clamping plate, and when the protective cover is installed on the tool clamping plate, at least the exposed portion of the cutting edge of the cutter is hidden inside the protective cover.

[0006] The protective cover of this application can be detachably installed on the tool holder. By installing the protective cover on the tool holder, part of the cutting edge of the cutter is hidden inside the protective cover, and then the cutter can be replaced. This avoids the situation where the cutter can easily cut the operator and cause injury during the replacement of the cutter, and effectively improves the safety of the cutter replacement.

[0007] During cutter disassembly, the protective cover is installed on the cutter holder, and the exposed cutter blade is concealed within the protective cover. Then, the cutter holder is separated from the cutter support. The cutter holder and protective cover remain relatively fixed. The cutter, cutter holder, and protective cover are removed together from the cutter support, and then the cutter on the protective cover is replaced. During installation, the protective cover is installed onto the cutter support along with the cutter holder, and then the protective cover is removed. During cutter assembly and disassembly, the operator does not directly contact the cutter, effectively improving operator safety and reducing the risk of injury.

[0008] When the cutter is removed from and installed from the protective cover and the cutter clamp, the protective cover and the cutter clamp can be moved to a more spacious and safer area, thereby improving the problem of operator injury caused by operating the cutter in a narrow area and further improving the safety of operation.

[0009] In an exemplary embodiment of this application, the protective cover includes a connecting portion and a protective cavity. The connecting portion is detachably connected to the tool clamp; when the connecting portion is connected to the tool clamp, at least a portion of the exposed cutting edge of the cutter is hidden within the protective cavity.

[0010] The connecting part is used for detachable connection with the tool holder, and the protective cavity is used to protect at least part of the exposed cutting edge of the cutter, thereby preventing the operator from coming into contact with the cutting edge of the cutter when changing the cutter, reducing the risk of injury to the operator, and improving the operator's operational safety.

[0011] In an exemplary embodiment of this application, the protective cover includes a guide portion that matches the tool clamp to guide the connecting portion to slide to the connecting position, and causes at least the cutting edge of the cutter to slide into the protective cavity.

[0012] The guide section matches the tool holder to guide the protective cover to the connection position. This facilitates the connection between the connecting section and the tool holder, and also allows the cutting edge of the cutter to enter the protective cavity, thus shielding the cutting edge. The guide section standardizes operator procedures, improves safety, and makes it easier for operators to install and remove the protective cover, reducing the skill level required.

[0013] In an exemplary embodiment of this application, the guide portion includes a groove disposed on the connecting portion, the groove being disposed on the abutting side of the connecting portion and the tool clamp, and the groove matching the tool clamp; the protective cavity is provided with an opening on the side near the groove, so that when the connecting portion and the tool clamp slide relative to each other to the connection position, the cutting edge of the cutter enters the protective cavity through the opening.

[0014] The matching of the slide groove and the tool holder eliminates the need for an additional guide structure on the tool holder to match the guide section, facilitating guidance and reducing increased machining costs. The protective cavity has an opening, and the guide section guides the movement of the protective cover and the tool holder, allowing the cutting edge of the cutter to enter the protective cavity through the opening, thereby shielding the cutter and improving operational safety.

[0015] In an exemplary embodiment of this application, the film cutting device includes a first fastener; the tool holder and the tool clamp are detachably connected via the first fastener.

[0016] The first fastener facilitates the assembly and disassembly of the tool holder and tool clamp, ensuring ease of assembly and disassembly operations.

[0017] In an exemplary embodiment of this application, the protective cover includes a clearance area disposed on the connecting portion, the clearance area clearing the first fastener.

[0018] By setting a clearance area on the protective cover, the clearance area avoids the first fastener, thereby allowing the first fastener to be removed from the clearance area, which facilitates the disassembly of the first fastener, and in turn facilitates the disassembly and assembly of the tool holder and the tool support, so as to facilitate the disassembly and assembly of the cutting tool.

[0019] In an exemplary embodiment of this application, the avoidance area includes two first through holes disposed on the connecting portion; the two first through holes are arranged along the width direction of the protective cavity.

[0020] The first fastener secures the cutter by fixing the cutter clamp and the cutter holder, allowing the clamp and holder to clamp the cutter. To facilitate cutter fixation, the first fastener is positioned on both sides of the cutter, such as the left and right sides. The left-right direction of the cutter is perpendicular to its length, thus facilitating cutter fixation and preventing interference with the cutter if the first fastener is positioned along its length. By arranging two first through holes along the width of the protective cavity, corresponding to the two first fasteners, the installation and removal of the first fasteners are facilitated.

[0021] In an exemplary embodiment of this application, the tool holder is provided with a mounting groove; the tool clamp is provided with a mounting protrusion, the mounting groove matches the mounting protrusion, and the mounting protrusion presses the cutting tool against the mounting groove.

[0022] After the cutter is installed in the mounting slot, the mounting protrusion extends into the mounting slot. The cooperation between the mounting protrusion and the mounting slot clamps and positions the cutter, making the connection between the cutter and the main body more stable. At the same time, the mounting slot can also reduce the wobble of the cutter and ensure the stability of the cutter during operation.

[0023] In an exemplary embodiment of this application, the tool holder is provided with a first threaded hole; the connecting part includes a second through hole corresponding to the first threaded hole, the second through hole accommodating a second fastener through which the connecting part is detachably connected to the tool holder.

[0024] The second fastener can be a bolt, screw, or other fastener. After passing through the second through hole, the second fastener is threadedly connected to the first threaded hole, thereby fixing the connecting part to the tool holder. This facilitates the separation of the tool holder and the protective cover from the tool support, making it easier to assemble and disassemble the cutting tool.

[0025] In an exemplary embodiment of this application, two second through holes are provided, and the two second through holes are arranged along the length direction of the protective cavity.

[0026] The two first through holes in the clearance area are arranged along the width of the protective cavity. The diameter of the first through holes is relatively large to facilitate the removal of the first fastener. In order to make better use of the space of the protective cover and avoid the protective cover being too large, the two first threaded holes are arranged along the length of the cutter. This can make full use of the space of the protective cover and avoid interference between the first threaded holes and the first through holes.

[0027] In an exemplary embodiment of this application, the protective cover includes a first clamp and a second clamp. The second clamp is detachably connected to the first clamp; grooves are provided on opposite sides of the first clamp and / or the second clamp to form the protective cavity after the first clamp and the second clamp are fixed.

[0028] The groove can be set on the side of the first clamp facing the second clamp, or on the side of the second clamp facing the first clamp, or the groove can be set on both the opposite sides of the first clamp and the second clamp, so that a protective cavity is formed after the first clamp and the second clamp are fixed relative to each other.

[0029] The protective cavity is matched with the cutting tool, resulting in a relatively large depth. However, the cross-sectional area perpendicular to the length of the protective cavity is small, making it inconvenient to machine a slender cavity using drilling or milling methods. Machining grooves on the open sides of the first and / or second clamping members is a mature and convenient process. Forming the protective cavity by assembling a protective cover using the first and second clamping members facilitates machining, reduces machining difficulty, and lowers machining costs.

[0030] In an exemplary embodiment of this application, the first clamp extends beyond the second clamp along the length direction of the protective cavity; the connecting portion is disposed where the first clamp extends beyond the second clamp.

[0031] The main function of the second clamp is to form a protective cavity with the first clamp. This cavity accommodates the cutting edge of the cutter. Taking a vertically mounted cutter as an example, the cutting edge is located below the tool holder, therefore the protective cavity needs to be positioned below the connecting part. By making the length of the second clamp shorter than that of the first clamp, the connecting part can be secured to the tool holder, while also reducing the material used for the second clamp, lowering production costs, and reducing the weight of the protective cover, making it easier for operators to hold and operate the cover.

[0032] In an exemplary embodiment of this application, the protective cover includes a clamping member disposed on the first clamping member and / or the second clamping member to fix the cutter within the protective cavity.

[0033] By setting a clamping device to fix the cutter in the protective cavity, the cutter is fixed to the protective cover, thus preventing the cutter from falling out of the protective cavity when the protective cover and the cutter clamp are removed from or installed on the cutter holder. This reduces the chance of the cutter falling off accidentally, improves the safety of cutter replacement, and reduces the risk of injury to operators.

[0034] In an exemplary embodiment of this application, the first clamp is provided with a second threaded hole, which penetrates the first clamp to the protective cavity; the clamping member is provided with an external thread, which engages with the second threaded hole, and the clamping member penetrates the first clamp to the protective cavity.

[0035] When the cutter needs to be clamped, rotating the clamping member engages with the second threaded hole, causing the clamping member to screw into the protective cavity. This presses the cutter against the wall of the protective cavity opposite to the clamping member, thus fixing the cutter to the protective cover. When the cutter needs to be removed from the protective cavity, unscrewing the clamping member outwards allows the cutter to be removed from the wall of the protective cavity opposite to the clamping member.

[0036] When removing the cutter, it can be removed by using a tool to hold it in place, or by flipping the protective cover so that the opening faces downwards, allowing the cutter to detach from the protective cavity under gravity.

[0037] In an exemplary embodiment of this application, when the protective cover is installed on the tool clamp connection, the end of the cutter exposed outside the tool clamp abuts against the bottom wall of the protective cavity.

[0038] When the cutter needs to be disassembled, the protective cover first connects to the cutter clamp, at which point the end of the cutter exposed outside the clamp abuts against the bottom wall of the protective cavity. When installing the cutter, insert it into the protective cavity so that the end of the cutter abuts against the bottom wall of the cavity; this completes the cutter's positioning. When the protective cover and cutter clamp are then installed together on the cutter holder, the cutter is in the same position as when it was disassembled, facilitating easy and accurate positioning and installation, and simplifying the operator's work.

[0039] In combination with existing technologies, the beneficial effects of this application are as follows:

[0040] In existing methods, when replacing the cutter, the operator holds the cutter and its packaging paper, which can easily damage the packaging paper due to the sharp blade, potentially causing injury to the operator. The film cutting equipment of this application includes a main unit, a cutter holder, a cutter clamping plate, a cutter, and a protective cover. The cutter clamping plate is detachably mounted on the main unit, and the cutter is clamped between the cutter clamping plate and the cutter holder. The detachable connection between the cutter clamping plate and the cutter holder facilitates the installation and removal of the cutter. The protective cover of this application is detachably installed on the cutter clamping plate. By installing the protective cover on the cutter clamping plate, part of the cutter's blade is hidden inside the protective cover, allowing for easy cutter replacement. This prevents the cutter from easily cutting the operator during replacement, effectively improving the safety of cutter replacement.

[0041] During cutter disassembly, the protective cover is installed on the cutter holder, and the exposed cutter blade is concealed within the protective cover. Then, the cutter holder is separated from the cutter support. The cutter holder and protective cover remain relatively fixed. The cutter, cutter holder, and protective cover are removed together from the cutter support, and then the cutter on the protective cover is replaced. During installation, the protective cover is installed onto the cutter support along with the cutter holder, and then the protective cover is removed. During cutter assembly and disassembly, the operator does not directly contact the cutter, effectively improving operator safety and reducing the risk of injury.

[0042] When the cutter is removed from and installed from the protective cover and the cutter clamp, the protective cover and the cutter clamp can be moved to a more spacious and safer area, thereby improving the problem of operator injury caused by operating the cutter in a narrow area and further improving the safety of operation. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of a portion of an exemplary membrane cutting device according to this application;

[0045] Figure 2 This is a schematic diagram of an exemplary protective cover for this application;

[0046] Figure 3 This is a three-dimensional schematic diagram of an exemplary protective cover of this application;

[0047] Figure 4 This is a rear view schematic diagram of an exemplary protective cover of this application;

[0048] Figure 5 for Figure 4 Schematic diagram of the section AA in the middle;

[0049] Figure 6 This is a schematic diagram of an exemplary first clamping member of this application;

[0050] Figure 7 This is a schematic diagram of an exemplary second clamping member of this application;

[0051] Figure 8 This is a schematic diagram illustrating the use of an exemplary protective cover according to this application;

[0052] Figure 9 This is a schematic diagram of another angle of an exemplary protective cover of this application;

[0053] Figure 10 This is an exploded view of an exemplary partial structure of this application.

[0054] Component designation explanation:

[0055] 10. Main unit; 11. Tool holder; 101. Mounting slot; 12. First fastener; 13. Connecting threaded hole; 20. Tool clamp; 201. Mounting protrusion; 21. Connecting through hole; 22. First threaded hole; 30. Cutting blade;

[0056] 40. Protective cover; 100. First clamp; 110. Connecting part; 111. Second through hole; 120. Guide part; 121. Slide groove; 130. Clearance area; 131. First through hole; 150. Second threaded hole;

[0057] 200. Second clamping piece; 210. Groove;

[0058] 300. Protective cavity; 310. Opening;

[0059] 400. Clamping components. Detailed Implementation

[0060] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of this application is for describing specific implementation schemes and not for limiting the scope of protection of this application. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0061] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in this application, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this application, as well as the prior art known to those skilled in the art and the descriptions in this application, may be implemented using any prior art methods, devices, and materials similar to or equivalent to the methods, devices, and materials in the embodiments of this application.

[0062] It should be noted that the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of this application. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered as part of the scope of this application.

[0063] In the lithium battery industry, some battery cells require an insulating film to ensure insulation performance. For example, the electrode assembly of a prismatic battery cell needs to be covered with an insulating film. The insulating film application process requires a cutter to cut the film after each application. These cutters wear down over time and need to be replaced manually.

[0064] Currently, membrane cutting equipment on the market has a compact and complex structure with limited internal maintenance space. Manual blade replacement requires holding the packaging paper around the blade, which, due to the confined space and the sharpness of the blade, poses a significant risk of injury if the packaging paper is damaged during operation, threatening the operator's safety.

[0065] Please see Figures 1 to 10 In view of this, this application provides a membrane material cutting device, which includes a protective cover 40. The protective cover 40 shields the blade of the cutter 30, thereby reducing the risk of accidentally touching the cutter 30 when manually replacing it and improving the safety of replacing the cutter 30.

[0066] The membrane cutting equipment includes a main unit 10, a tool holder 11, a tool clamping plate 20, a cutter 30, and a protective cover 40. The tool holder 11 is fixedly disposed on the main unit 10; the tool clamping plate 20 is detachably disposed on the tool holder 11; the cutter 30 is clamped between the tool clamping plate 20 and the tool holder 11, and at least a portion of the cutting edge of the cutter 30 is exposed. The protective cover 40 is detachably installed on the tool clamping plate 20, and when the protective cover 40 is installed on the tool clamping plate 20, at least the exposed portion of the cutting edge of the cutter 30 is hidden inside the protective cover 40.

[0067] The cutter 30 is fixed to the cutter bracket 11 via the cutter clamp 20. The main unit 10 drives the bracket and the cutter clamp 20 to move, thereby driving the cutter 30 to move, thus realizing the cutting of the membrane material.

[0068] The protective cover 40 of this application can be detachably installed on the tool holder 20. When the protective cover 40 is installed on the tool holder 20, part of the cutting edge of the cutter 30 is hidden inside the protective cover 40, and then the cutter 30 is replaced. This avoids the situation where the cutter 30 is easy to cut the operator and cause injury to the operator when the cutter 30 is replaced, and effectively improves the safety of the cutter 30 replacement.

[0069] When disassembling the cutter 30, the protective cover 40 is installed on the cutter clamp 20, and the exposed blade of the cutter 30 is hidden inside the protective cover 40. Then, the cutter clamp 20 is separated from the cutter holder 11. The cutter clamp 20 and the protective cover 40 remain relatively fixed. The cutter 30, the cutter clamp 20, and the protective cover 40 are removed together from the cutter holder 11, and then the cutter 30 on the protective cover 40 is replaced. During installation, the protective cover 40 is installed on the cutter holder 11 along with the cutter clamp 20, and then the protective cover 40 is removed. During the installation and removal of the cutter 30, the operator does not directly contact the cutter 30, effectively improving the operator's safety and reducing the risk of injury.

[0070] When the cutter 30 is removed from and installed from the protective cover 40 and the cutter clamp 20, the protective cover 40 and the cutter clamp 20 can be moved to a more spacious and safer area, thereby improving the problem that the operation of the cutter 30 in narrow areas is prone to causing injury to the operator and further improving the safety of operation.

[0071] For example, the main unit 10 may include a drive unit, a ball screw, a guide rail and a slider. The drive unit may be a motor, which drives the ball screw to rotate, causing the slider to move along the guide rail, and then drives the tool holder 11 to move, so that the cutter 30 performs reciprocating linear motion to complete the cutting of the film material.

[0072] Of course, as some alternatives, the drive mechanism of the main body can also be a combination of cylinder drive or motor and other transmission mechanisms, and this application does not impose any special restrictions on this.

[0073] The main unit 10 may also include other structures, such as a main unit bracket, etc., and this application does not impose any special restrictions on this.

[0074] Please see Figure 1 and Figure 9 For example, the film cutting equipment includes a first fastener 12, and the tool holder 11 and the tool clamping plate 20 are detachably connected by the first fastener 12. The first fastener 12 facilitates the assembly and disassembly of the tool holder 11 and the tool clamping plate 20, ensuring the convenience of assembly and disassembly operations.

[0075] Please see Figure 1 and Figure 9In one embodiment, the tool holder 11 is provided with a connecting threaded hole 13, and the tool clamping plate 20 is provided with a connecting through hole 21, which corresponds to the connecting threaded hole 13. The first fastener 12 is provided with an external thread, and the first fastener 12 passes through the connecting through hole 21 and connects to the connecting threaded hole 13, so that the tool clamping plate 20 and the tool holder 11 are relatively fixed, thereby clamping and fixing the cutter 30 between the tool clamping plate 20 and the tool holder 11, so that the cutter 30 is relatively fixed with the main unit 10, so that the main unit 10 drives the cutter 30 to reciprocate and cut the film material.

[0076] Please see Figure 1 In one embodiment, to improve the flatness of the surface of the tool holder 20 after installation and to prevent the first fastener 12 from protruding from the surface of the tool holder 20, the connecting through hole 21 is a countersunk hole or a countersunk hole, so that the end of the first fastener 12 can be concealed in the connecting through hole 21, thereby preventing the first fastener 12 from protruding from the surface of the tool holder 20 and reducing the occurrence of interference between the first fastener 12 and other components during the operation of the cutter 30.

[0077] Of course, as some alternatives, the tool holder 11 may not have a connecting threaded hole 13. The first fastener 12 can be used in other ways, such as by adding a nut, to make the tool clamp 20 and the tool holder 11 detachably fixed. For example, the first fastener 12 can also be used to make the tool clamp 20 and the tool holder 11 detachably fixed by snapping with the tool holder 11.

[0078] Please see Figure 10 In one embodiment, the tool holder 11 is provided with a mounting groove 101. The tool clamping plate 20 is provided with a mounting protrusion 201, and the mounting groove 101 matches the mounting protrusion 201. The mounting protrusion 201 presses the cutter 30 against the mounting groove 101. After the cutter 30 is installed in the mounting groove 101, the mounting protrusion 201 extends into the mounting groove 101. The cooperation between the mounting protrusion 201 and the mounting groove 101 achieves clamping and positioning of the cutter 30, making the connection between the cutter 30 and the main body more stable. At the same time, the mounting groove 101 can also reduce the shaking of the cutter 30 and ensure the stability of the cutter 30 during operation.

[0079] Please see Figure 3 and Figure 5 In one embodiment, the protective cover 40 includes a connecting portion 110 and a protective cavity 300.

[0080] The connecting part 110 is detachably connected to the tool clamp 20. When the connecting part 110 is connected to the tool clamp 20, at least a portion of the exposed blade of the cutter 30 is hidden inside the protective cavity 300.

[0081] The connecting part 110 is used for detachable connection with the tool clamp 20, and the protective cavity 300 is used to protect at least part of the exposed cutting edge of the cutter 30, thereby preventing the operator from contacting the cutting edge of the cutter 30 when changing the cutter 30, reducing the risk of injury to the operator, and improving the operator's operational safety.

[0082] Please see Figure 3 and Figure 5 In one embodiment, the protective cavity 300 has an opening 310. The protective cavity 300 is a structure in which only the opening 310 is not closed, while the other surfaces are closed, so that the cutter 30 is exposed only at the opening 310. The orientation of the opening 310 is the same as or substantially the same as the length direction of the cutter 30. The protective cover 40 provides a closed cover for the cutter 30 inside the protective cavity 300 to avoid accidental contact with the cutter 30 and improve the safety of operation.

[0083] In another embodiment, one end of the protective cavity 300 along its length is an opening 310, and one side of the protective cavity 300 is not closed. The protective cover 40 semi-encloses the cutter 30 inside the protective cavity 300 to avoid accidental contact with the cutter 30 when manually changing the cutter 30, thereby improving the safety of the operation.

[0084] Of course, as some alternatives, the protective cavity 300 can also have other structures. For example, the opening 310 of the protective cavity 300 is provided along the length direction of the protective cavity 300, and the guide portion 120 guides the protective cover 40 to move relative to the tool clamp 20 in a direction perpendicular to the length direction of the cutter 30, so that the cutter 30 enters the protective cavity 300 through the opening 310, and the protective cavity 300 semi-encloses the cutter 30. The protective cavity 300 can also have other structures that can cover the cutter 30. For example, the protective cavity 300 has two closed surfaces, which at least cover the cutting edge side of the cutter 30 and the adjacent side of the cutting edge side of the cutter 30. The adjacent side of the cutting edge side is a side surface in the same direction as the length direction of the cutter 30. For example, the protective cavity 300 has three closed surfaces, which cover the cutting edge side of the cutter 30 and the adjacent side of the cutting edge side of the cutter 30. The adjacent side of the cutting edge side is a side surface in the same direction as the length direction of the cutter 30. The protective cavity 300 can also shield other parts of the cutter 30 to reduce accidental contact by the operator.

[0085] For example, when the protective cover 40 slides to the connecting position, at least the cutting edge of the cutter 30 at the end away from the tool holder 20 enters the protective cavity 300, which covers part of the cutting edge of the cutter 30. The connecting part 110 is located at the tool holder 20, and the protective cover 40 blocks the cutter 30 between the protective cavity 300 and the tool holder 20. In other words, the protective cover 40 extends beyond the cutter 30 at both ends along a first direction, which is perpendicular to the length direction of the cutter 30. The protective cover 40 blocks the cutter 30, and through the combined action of the protective cavity 300 and the protective cover 40, the cutter 30 is blocked, reducing the possibility of the operator accidentally touching the cutter 30, lowering the risk of injury to the operator, and improving safety.

[0086] In one embodiment, when the protective cover 40 moves to the connection position with the tool clamp 20, the cutting edge of the cutter 30 is completely inserted into the protective cavity 300, thereby preventing the cutting edge of the cutter 30 from being exposed, preventing the operator from accidentally touching the cutting edge of the cutter 30, preventing the operator from being injured by accidentally touching the cutter 30, and improving the safety of manually changing the cutter 30.

[0087] Please see Figure 3 In one embodiment, the protective cover 40 includes a guide portion 120, which matches the tool clamp 20 to guide the connecting portion 110 to slide to the connection position, and allows at least the cutting edge of the cutter 30 to slide into the protective cavity 300. The guide portion 120 matches the tool clamp 20 to guide the protective cover 40 to slide to the connection position, facilitating the connection between the connecting portion 110 and the tool clamp 20; and facilitating the entry of the cutting edge of the cutter 30 into the protective cavity 300, thereby shielding the cutting edge of the cutter 30. By providing the guide portion 120, the operator's operation can be standardized, improving operational safety, and facilitating the operator's disassembly and assembly of the protective cover 40, reducing the skill requirement for the operator.

[0088] Please see Figure 3 and Figure 6 In one embodiment, the guide portion 120 includes a groove 121 disposed on the connecting portion 110. The groove 121 is disposed on the abutting side of the connecting portion 110 and the tool clamp 20, and the groove 121 matches the tool clamp 20. The protective cavity 300 is provided with an opening 310 on the side near the groove 121, so that when the connecting portion 110 and the tool clamp 20 slide relative to each other to the connection position, the cutting edge of the cutter 30 enters the protective cavity 300 through the opening 310.

[0089] The groove 121 matches the tool holder 20, eliminating the need for an additional guide structure on the tool holder 20 to match the guide portion 120, thus facilitating guidance and reducing machining costs. The protective cavity 300 has an opening 310, which guides the movement of the protective cover 40 and the tool holder 20 via the guide portion 120, allowing the cutting edge of the cutter 30 to enter the protective cavity 300 through the opening 310, thereby shielding the cutter 30 and improving operational safety.

[0090] In one embodiment, the tool clamp 20 is a square clamp, and the slide groove 121 matches the two sides of the tool clamp 20. The tool clamp 20 is at least partially inserted into the slide groove 121, and the two sides of the tool clamp 20 are adapted to the inner wall of the slide groove 121. Then, the protective cover 40 moves along the side wall of the tool clamp 20, so that the cutter 30 moves along the length direction of the cutter 30, thereby allowing the cutter 30 to enter or move away from the protective cavity 300.

[0091] In some embodiments, the tool clamp 20 can be a clamp of other shapes. The tool clamp 20 has two sides parallel to the length direction of the cutter 30 to facilitate the matching of the tool clamp 20 with the slide groove 121.

[0092] Please see Figure 8 In one embodiment, the protective cover 40 includes a clearance area 130 disposed on the connecting portion 110, the clearance area 130 clearing the first fastener 12. By providing the clearance area 130 on the protective cover 40, the clearance area 130 clears the first fastener 12, thereby allowing the first fastener 12 to be removed from the clearance area 130, facilitating the disassembly of the first fastener 12, and thus facilitating the assembly and disassembly of the tool holder 20 and the tool support 11, so as to facilitate the disassembly and replacement of the cutting blade 30.

[0093] Please see Figure 6 and Figure 8 In one embodiment, the clearance area 130 includes two first through holes 131 disposed in the connecting portion 110; the two first through holes 131 are arranged along the width direction of the protective cavity 300. The first fastener 12 secures the cutter clamp 20 and the cutter support 11, allowing the cutter clamp 20 and the cutter support 11 to clamp the cutter 30. To facilitate the fixing of the cutter 30, the first fastener 12 is disposed on both sides of the cutter 30. For example, the first fastener 12 is disposed on the left and right sides of the cutter 30, with the left-right direction of the cutter 30 perpendicular to its length direction, i.e., the first fastener 12 is arranged along the first direction, thus facilitating the fixing of the cutter 30 and avoiding interference with the cutter 30 when the first fastener 12 is arranged along its length direction. By arranging the two first through holes 131 along the width direction of the protective cavity 300, corresponding to the two first fasteners 12, the assembly and disassembly of the first fasteners 12 are facilitated.

[0094] For example, the first through hole 131 can be a circular hole, a square hole, an elliptical hole, etc. The first through hole 131 can accommodate the passage of the first fastener 12 to complete the assembly and disassembly of the first fastener 12.

[0095] Please see Figure 1 and Figure 3 In one embodiment, the tool clamp 20 is provided with a first threaded hole 22; the connecting part 110 includes a second through hole 111 corresponding to the first threaded hole 22, and the connecting end of the second fastener passes through the second through hole 111 and cooperates with the first threaded hole 22, so that the connecting part 110 and the tool clamp 20 can be detachably connected through the second fastener.

[0096] The second fastener can be a bolt, screw, or other fastener. After passing through the second through hole 111, the second fastener is threaded into the first threaded hole 22. The head of the second fastener is pressed against the connecting part 110, thereby fixing the connecting part 110 to the tool clamp 20. This facilitates the separation of the tool clamp 20 and the protective cover 40 from the tool bracket 11, making it easier to disassemble and assemble the cutter 30.

[0097] For example, the second fastener includes a head and a screw. The screw passes through the second through hole 111 and engages with the first threaded hole 22. The head presses against the outer periphery of the second through hole 111 without passing through the second through hole 111, thereby connecting and fixing the second fastener to the fixed connection part 110 and the tool holder 20.

[0098] In some embodiments, the second through hole 111 is a round hole. In other embodiments, the second through hole 111 can be an oblong hole or a hole of other shapes, which satisfies the requirement of fixing the connecting part 110 to the tool clamp 20 by means of a second fastener.

[0099] In one embodiment, two second through holes 111 are provided, and the two second through holes 111 are arranged along the length direction of the protective cavity 300.

[0100] The two first through holes 131 of the clearance area 130 are arranged along the width direction of the protective cavity 300. The diameter of the first through holes 131 is relatively large to facilitate the removal of the first fastener 12. In order to make better use of the space of the protective cover 40 and avoid the protective cover 40 from being too large, the two first threaded holes 22 are arranged along the length direction of the cutter 30. This can make full use of the space of the protective cover 40 and avoid interference between the first threaded holes 22 and the first through holes 131.

[0101] The tool holder 20 is provided with two first threaded holes 22 corresponding to the two second through holes 111. The tool holder 20 and the protective cover 40 are fixed by the two first threaded holes 22 and the two second through holes 111 through the cooperation of the two first threaded holes 22 and the two second through holes 111, and then fixed by the two second fasteners to prevent the tool holder 20 and the protective cover 40 from rotating or shifting relative to each other, and to ensure the stable connection between the tool holder 20 and the protective cover 40.

[0102] Please see Figure 3 In one embodiment, the protective cover 40 includes a first clamp 100 and a second clamp 200. The second clamp 200 is detachably connected to the first clamp 100; a groove 210 is provided on the opposite side of the first clamp 100 and / or the second clamp 200 to form the protective cavity 300 after the first clamp 100 and the second clamp 200 are fixed.

[0103] The groove 210 can be provided on the side of the first clamp 100 facing the second clamp 200, or on the side of the second clamp 200 facing the first clamp 100. Alternatively, the groove 210 can be provided on both the opposite sides of the first clamp 100 and the second clamp 200, so that the first clamp 100 and the second clamp 200 are fixed relative to each other to form a protective cavity 300.

[0104] The protective cavity 300 is matched with the cutting tool 30, therefore the protective cavity 300 has a relatively large depth, but the cross-sectional area perpendicular to the length direction of the protective cavity 300 is relatively small. Machining the slender protective cavity 300 using methods such as drilling or milling is inconvenient. Machining the groove 210 on the open side of the first clamping member 100 and / or the second clamping member 200 is a mature process, convenient, simple, and easy to operate. Forming the protective cavity 300 by assembling the protective cover 40 using the first clamping member 100 and the second clamping member 200 facilitates machining, reduces machining difficulty, and lowers machining costs.

[0105] Please see Figure 3 In one embodiment, the first clamping member 100 extends beyond the second clamping member 200 along the length of the protective cavity 300; the connecting portion 110 is disposed where the first clamping member 100 extends beyond the second clamping member 200. The main function of the second clamping member 200 is to form a protective cavity 300 with the first clamping member 100. The protective cavity 300 is used to accommodate the cutting edge of the cutter 30. Taking the vertical installation of the cutter 30 as an example, the cutting edge of the cutter 30 is located below the tool clamping plate 20, therefore the protective cavity 300 needs to be disposed below the connecting portion 110. By making the length of the second clamping member 200 shorter than the length of the first clamping member 100, it is possible to ensure that the connecting portion 110 is fixed to the tool clamping plate 20, reduce the material used for the second clamping member 200, reduce production costs, and reduce the weight of the protective cover 40, making it easier for operators to hold and operate the protective cover 40.

[0106] In one embodiment, taking the vertical installation of the cutter 30 as an example, the slide groove 121 is provided on the side opposite to the first clamp 100 and the second clamp 200, and the slide groove 121 is provided above the second clamp 200 to facilitate the matching of the slide groove 121 with the cutter clamp 20.

[0107] Please see Figure 5 In one embodiment, the protective cover 40 includes a clamping member 400, which is disposed on the first clamping member 100 and / or the second clamping member 200 to fix the cutter 30 in the protective cavity 300.

[0108] The clamping element 400 can be set on the first clamping element 100, or on the second clamping element 200, or the clamping element 400 can be set on the first clamping element 100 and the second clamping element 200 respectively.

[0109] By setting the clamping member 400 to fix the cutter 30 in the protective cavity 300, the cutter 30 is fixed to the protective cover 40, thereby preventing the cutter 30 from falling out of the protective cavity 300 when the protective cover 40 and the cutter clamp 20 are removed from or installed on the cutter holder 11 together. This reduces the possibility of the cutter 30 falling off accidentally, improves the safety of the cutter 30 replacement, and reduces the risk of injury to the operator.

[0110] Please see Figure 5 In one embodiment, the first clamp 100 is provided with a second threaded hole 150, which penetrates the first clamp 100 to the protective cavity 300; the clamping member 400 is provided with an external thread, which engages with the second threaded hole 150, and the clamping member 400 penetrates the first clamp 100 to the protective cavity 300.

[0111] When the cutter 30 needs to be clamped, the clamping member 400 is rotated, and the clamping member 400 engages with the second threaded hole 150, causing the clamping member 400 to screw into the protective cavity 300. This presses the cutter 30 against the wall of the protective cavity 300 away from the clamping member 400, thus fixing the cutter 30 to the protective cover 40. When the cutter 30 needs to be removed from the protective cavity 300, the clamping member 400 is screwed outward, allowing the cutter 30 to be removed from the wall of the protective cavity 300 away from the clamping member 400.

[0112] When removing the cutter 30, it can be removed by clamping it with a tool, or by flipping the protective cover 40 so that the opening 310 faces downwards, allowing the cutter 30 to detach from the protective cavity 300 under the action of gravity.

[0113] In one embodiment, when the protective cover 40 is installed on the tool clamp 20, the end of the cutter 30 exposed outside the tool clamp 20 abuts against the bottom wall of the protective cavity 300.

[0114] When the cutter 30 needs to be disassembled, the protective cover 40 first connects to the cutter clamp 20. At this time, the end of the cutter 30 exposed outside the cutter clamp 20 abuts against the bottom wall of the protective cavity 300. When the cutter 30 is installed, the cutter 30 is inserted into the protective cavity 300 and the end of the cutter 30 abuts against the bottom wall of the protective cavity 300, thus completing the positioning of the cutter 30. When the protective cover 40 and the cutter clamp 20 are installed together on the cutter bracket 11, the position of the cutter 30 is the same as when it was disassembled, which facilitates the positioning and installation of the cutter 30, improves the convenience and accuracy of the positioning and installation of the cutter 30, and facilitates the operation of the operator.

[0115] The membrane cutting equipment of this application can be disassembled and assembled together with the protective cover 40, the tool clamp 20 and the cutter 30. The protective cover 40 shields the cutter 30, thereby avoiding accidental contact with the cutter 30 during manual disassembly and assembly and thus effectively improving the safety of manual operation.

[0116] When the cutter 30 is removed from and installed on the protective cover 40, the protective cover 40 and the cutter clamp 20 can be moved to a more spacious and safer area, facilitating the disassembly and replacement of the cutter 30. Therefore, this application effectively overcomes some practical problems in the prior art, thus having high utilization value and practical significance.

[0117] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A membrane material cutting device, characterized in that, include: Main unit (10); The tool holder (11) is fixedly installed on the main unit (10). The tool holder (20) is detachably mounted on the tool support (11). A cutter (30) is clamped between the cutter clamp (20) and the cutter holder (11), and at least a portion of the cutting edge of the cutter is exposed; A protective cover (40) is detachably installed on the tool holder (20). When the protective cover (40) is installed on the tool holder (20), at least the exposed blade of the cutter (30) is hidden inside the protective cover (40).

2. The membrane cutting equipment according to claim 1, characterized in that, The protective cover (40) includes: The connecting part (110) is detachably connected to the tool holder (20); When the connecting part (110) is connected to the tool clamp (20), at least a portion of the exposed cutting edge of the cutter is hidden inside the protective cavity (300).

3. The membrane cutting equipment according to claim 2, characterized in that, The protective cover (40) includes: The guide portion (120) matches the tool holder (20) to guide the connecting portion (110) to slide to the connecting position, and causes at least the cutting edge of the cutter (30) to slide into the protective cavity (300).

4. The membrane cutting equipment according to claim 3, characterized in that, The guide portion (120) includes a slide groove (121) disposed on the connecting portion (110), the slide groove (121) being disposed on the abutting side of the connecting portion (110) and the tool clamp (20), and the slide groove (121) matching the tool clamp (20); The protective cavity (300) has an opening (310) on the side near the slide groove (121) so that when the connecting part (110) slides relative to the tool clamp (20) to the connecting position, the cutting edge of the cutter (30) enters the protective cavity (300) through the opening (310).

5. The membrane cutting equipment according to claim 2, characterized in that, The membrane cutting equipment includes a first fastener (12). The tool holder (11) and the tool clamp (20) are detachably connected by the first fastener (12).

6. The membrane cutting equipment according to claim 5, characterized in that, The protective cover (40) includes: A clearance area (130) is provided on the connecting part (110), and the clearance area (130) avoids the first fastener (12).

7. The membrane cutting equipment according to claim 6, characterized in that, The avoidance area (130) includes two first through holes (131) disposed in the connecting part (110). The two first through holes (131) are arranged along the width direction of the protective cavity (300).

8. The membrane cutting equipment according to claim 5, characterized in that, The tool holder (11) is provided with a mounting groove (101). The tool holder (20) is provided with a mounting protrusion (201), and the mounting groove (101) matches the mounting protrusion (201). The mounting protrusion (201) presses the cutter (30) against the mounting groove (101).

9. The membrane cutting equipment according to claim 2 or 3, characterized in that, The tool holder (20) is provided with a first threaded hole; The connecting part (110) includes a second through hole (111) corresponding to the first threaded hole. The second through hole (111) accommodates a second fastener through which the connecting part (110) is detachably connected to the tool holder (20) by means of the second fastener.

10. The membrane cutting equipment according to claim 9, characterized in that, There are two second through holes (111), and the two second through holes (111) are arranged along the length direction of the protective cavity (300).

11. The membrane cutting equipment according to claim 2 or 3, characterized in that, The protective cover (40) includes: First clamp (100); The second clamp (200) is detachably connected to the first clamp (100); The first clamp (100) and / or the second clamp (200) are provided with grooves (210) on opposite sides to form the protective cavity (300) after the first clamp (100) and the second clamp (200) are fixed.

12. The membrane cutting equipment according to claim 11, characterized in that, The first clamp (100) extends beyond the second clamp (200) along the length direction of the protective cavity (300); The connecting part (110) is located where the first clamp (100) extends beyond the second clamp (200).

13. The membrane cutting equipment according to claim 11, characterized in that, The protective cover includes: A clamping member (400) is disposed on the first clamp (100) and / or the second clamp (200) to fix the cutter (30) in the protective cavity (300).

14. The membrane cutting equipment according to claim 13, characterized in that, The first clamp (100) is provided with a second threaded hole (150), which extends through the first clamp (100) to the protective cavity (300); The clamping member (400) is provided with an external thread, which engages with the second threaded hole (150). The clamping member (400) extends through the first clamping member (100) to the protective cavity (300).

15. The membrane cutting equipment according to claim 2, characterized in that, When the protective cover (40) is installed on the tool clamp (20), the end of the cutter (30) exposed outside the tool clamp (20) abuts against the bottom wall of the protective cavity (300).

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