Slitting device

Abstract

The invention discloses a slitting device which comprises a cutter pad structure, a pushing assembly and a cutting assembly. A placement area, a backward thrust surface, a through hole, a cutting reference surface and a tool setting reference surface are defined by the tool pad structure; the material pushing assembly comprises an abutting piece and a first driving mechanism. The abutting piece can abut against the front side surface of the sheet-shaped material to abut against the thrust face, and the to-be-cut protrusion extends into the through hole. The cutting assembly comprises a cutter and a second driving mechanism, the cutter comprises a cutter body for defining a cutting alignment surface and a cutter holder for defining a cutter alignment surface, and the cutter body extends downwards into the through hole to cut off the to-be-cut bulge; the cutter pad structure and / or the cutter can move back and forth so as to drive the tool setting alignment face to abut against the tool setting reference face and drive the cutting alignment face to abut against the cutting reference face. According to the slitting device, the position accuracy in the slitting process can be improved, so that on one hand, the slitting quality can be improved; and on the other hand, the unnecessary abrasion degree between the cutter pad structure and the cutter body can be reduced, and finally the use reliability of the whole machine can be improved.

Description

Technical Field

[0001] This invention relates to the field of sheet material processing technology, and more specifically to a slitting device. Background Technology

[0002] Sheet materials such as circuit boards (PCBs / PCBAs) generally require a cutting process during their manufacturing. Circuit board cutting (separation / shape processing) is the core process of shape forming and panel separation in PCB manufacturing. The mainstream processes include mechanical cutting (milling, punching, V-cut, blade cutting) and laser cutting (CO2 / UV / femtosecond).

[0003] In mechanical cutting, the friction between the cutting tool and the sheet material causes extremely rapid wear. The dimensional and contour accuracy of the cuts continuously declines with tool wear, leading to a shortened tool life. Frequent tool replacements or repairs can result in high equipment downtime and poor batch consistency. This makes it particularly difficult to meet high-precision machining requirements for narrow grooves and small, irregular contours. Summary of the Invention

[0004] The main objective of this invention is to provide a slitting device that addresses the problem that existing cutting tools are prone to reduced tool life and machining accuracy due to wear when cutting sheet materials.

[0005] To achieve the above objectives, the present invention provides a slitting device, comprising: The blade pad structure has an upper surface that defines a placement area for placing sheet material. The blade pad structure protrudes upward at the front edge of the placement area to form a rearward thrust surface, and a through hole is partially formed downward at the front edge of the placement area. At least one side wall of the through hole defines a cutting reference surface, and the front surface of the blade pad structure defines a blade setting reference surface. The material pushing assembly includes a pusher movable in a front-rear direction and a first driving mechanism. The pusher is located at the rear side of the placement area and can push the sheet material forward under the drive of the first driving mechanism, so that the front surface of the sheet material abuts against the thrust surface and the protrusion to be cut of the sheet material extends forward into the through hole; and, A cutting assembly includes a vertically movable cutter and a second drive mechanism. The cutter includes a cutter body and a cutter holder. The cutter body defines a cutting alignment surface, and the cutter holder defines a rearward-facing cutter alignment surface. The second drive mechanism drives the cutter body downward into the through hole to cut the protrusion to be cut. In this configuration, at least one of the blade pad structure and the blade is movably arranged relative to the other in a front-rear direction, so that before the blade moves downward, the blade alignment surface is driven to abut against the blade reference surface, and then the cutting alignment surface is driven to abut against the cutting reference surface.

[0006] Optionally, the blade pad structure includes: A first block, the upper surface of which defines the placement area extending to its front edge, and is recessed with a guide groove that extends through the first block in a front-rear direction; and, The second block has a vertically formed through groove on a portion of its rear surface. The second block is fixedly connected to the front surface of the first block to seal the opening of the through groove and define the through hole. The front surface of the first block is divided into the cutting reference surface facing the opening of the groove and the tool setting reference surface located next to the second block. The second block protrudes upward from the first block and defines the thrust surface. The material pushing assembly further includes a guide protrusion, which is connected to the pusher and can be driven by the first driving mechanism to move along the guide groove.

[0007] Optionally, the guide groove is provided to penetrate the placement area in the front-to-back direction; The width of the guide groove is less than the width of the placement area in the same direction; and / or, The through hole has a first center line extending in the front-back direction, and the guide groove has a second center axis extending in the front-back direction. The first center line and the second center axis are collinear or parallel.

[0008] Optionally, the first block protrudes into the guide groove to form a support protrusion, and the upper surface of the support protrusion is flush with the placement area at the location. The width of the guide groove is greater than the width of the supporting protrusion in the same direction; and / or, The support protrusion is positioned forward and close to the through hole.

[0009] Optionally, the surface of the placement area slopes gradually downwards from front to back; or, The surface of the placement area gradually slopes downward from front to back, with an angle of inclination of not less than 7.5° and not more than 8.5°.

[0010] Optionally, the cutting device further includes a slag collection structure, which has a slag collection cavity. The slag collection structure is detachably connected to the blade pad structure, and the slag collection cavity communicates with the through hole.

[0011] Optionally, the rear surface of the blade body defines the cutting alignment surface, and the connecting edge between the rear surface of the blade body and its lower end surface constitutes the cutting edge. The lower surface of the blade body extends gradually upwards from back to front; and / or, The front surface of the blade body gradually slopes forward from bottom to top.

[0012] Optionally, at least two tool-setting reference surfaces are provided, and each tool-setting reference surface is located on the left and right sides of the cutting reference surface; and / or, The placement area is provided with at least two spaces spaced apart along the left-right direction; and / or, The tool holder at least defines a portion of the tool alignment surface that protrudes downward from the tool body.

[0013] Optionally, the slitting device further includes: A movable seat is provided that can be moved along the front-to-back direction, and the blade pad structure is provided on the movable seat; A third driving mechanism is connected to the movable seat and can drive the movable seat to move the tool pad structure relative to the tool; and, A buffer is disposed between the movable seat and the blade pad structure.

[0014] Optionally, the slitting device further includes a gas conveying assembly, which includes a gas conveying pipe for passing gas through it, and the gas conveying pipe is provided with a gas inlet. The air inlet is oriented toward the blade body; and / or, The gas inlet is positioned facing the placement area; and / or, The gas inlet is positioned facing the through hole.

[0015] In the technical solution provided by this invention, when a slitting step is required, the blade pad structure is first offset from the cutting component in the front-to-back direction, thereby reserving sufficient space above the blade pad structure in the vertical direction, which facilitates the loading of sheet materials manually or mechanically.

[0016] The pusher assembly can push the sheet material against the thrust surface, which helps to limit the sheet material together with the thrust surface. This ensures that the front edge of the sheet material is in the correct position before slitting, and that the protrusion to be cut is fully inserted into the through hole, thus achieving accurate positioning of the sheet material and improving the subsequent cutting accuracy.

[0017] Then, during the adjustment process of the blade pad structure and the cutting assembly moving back and forth, the contact between the blade alignment surface and the blade reference surface can accurately indicate the precise positioning of the blade pad structure and the cutting assembly moving back and forth.

[0018] During the downward movement of the tool, the tool setting alignment surface and the tool setting reference surface continuously abut against each other, and the cutting alignment surface and the cutting reference surface abut against each other, which helps to indicate the accurate position between the tool body and the through hole.

[0019] This application cleverly utilizes various reference planes and combines the movement scheme of the blade pad structure and / or cutting components to help improve the positional accuracy during the slitting process. This helps to improve the slitting quality on the one hand, and on the other hand, it helps to reduce unnecessary wear between the blade pad structure and the blade body, ultimately helping to improve the overall reliability of the machine. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A perspective view of an embodiment of the slitting device provided by the present invention; Figure 2 for Figure 1 A three-dimensional schematic diagram of the mid-splitting device from a second perspective; Figure 3 for Figure 1 Right view of the slitting device; Figure 4 for Figure 1 Assembly diagram of the pusher assembly and the blade pad structure; Figure 5 for Figure 4 A vertical cross-sectional view of the middle section of the structure; Figure 6 for Figure 5 Enlarged structural diagram at point A; Figure 7 for Figure 5 A three-dimensional schematic diagram of the central blade pad structure; Figure 8 for Figure 7 A three-dimensional schematic diagram of the first block; Figure 9 for Figure 7 A three-dimensional schematic diagram of the second block; Figure 10 for Figure 5 A three-dimensional schematic diagram of the pusher assembly; Figure 11 for Figure 1 A three-dimensional schematic diagram of a cutting tool from a first-person perspective; Figure 12 for Figure 1 A three-dimensional schematic diagram of a cutting tool from a third-person perspective; Figure 13 for Figure 1 A three-dimensional schematic diagram of a cutting tool from a fourth-person perspective; Figure 14 for Figure 1 A schematic diagram of the middle section structure (excluding the cutting components); Figure 15 for Figure 14 A schematic diagram of the middle section structure (with part of the base removed); Figure 16 for Figure 14 Schematic diagram of the vertical cross-sectional structure along the middle.

[0022] Explanation of icon numbers: 100 Tool pad structure; 110 First block; 111 Placement area; 112 Cutting reference surface; 113 Tool setting reference surface; 114 Guide groove; 120 Second block; 121 Through groove; 122 Thrust surface; 130 Reference component; 140 Through hole; 150 Support protrusion; 200 Pushing assembly; 210 Pushing component; 220 Guide protrusion; 230 First drive mechanism; 300 Cutting assembly; 310 Tool; 311 Tool body; 311a Cutting edge; 311b Cutting end face; 311 c. Cutting back side; 312. Tool holder; 312a. Main body; 312b. Extension; 313. Tool alignment surface; 314. Cutting alignment surface; 320. Second drive mechanism; 410. Movable seat; 420. Connecting seat; 430. Buffer; 440. Third drive mechanism; 500. Slag collection structure; 510. Slag collection chamber; 520. Connecting pipe; 600. Gas supply assembly; 610. Gas supply fitting; 700. Base; 80. Sheet material; 80a. Large-size material; 80b. Small-size material; 81. Protrusion to be cut.

[0023] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0027] Please see Figures 1 to 16 The present invention provides a slitting device.

[0028] The slitting device can be used as a standalone product. Alternatively, it can be integrated with other processing devices, transfer devices, etc., to form a complete processing system for unified application.

[0029] Furthermore, it should be noted that the slitting device in this application is primarily designed for cutting sheet-like materials 80, but does not constitute a limitation on the specific structure of the sheet-like materials 80. It is understood that the sheet-like materials 80 can be configured to have any shape, any size, any material, and any purpose.

[0030] Generally, the sheet material 80 includes a sheet body and a protrusion that partially protrudes outward from at least one side of the sheet body. A protrusion may be provided on one or at least both sides of each side edge of the sheet body. And / or, at least one side edge of the sheet body may have one or at least two protrusions spaced apart.

[0031] In practical applications, for ease of understanding, the protrusion that needs to be cut is named the protrusion to be cut 81.

[0032] For ease of understanding, the following embodiments will use the example of a slitting device having a substantially vertical vertical and horizontal direction as directional references. The vertical direction roughly corresponds to the direction of gravity (i.e., downward) and the opposite direction (i.e., upward). The horizontal direction is any direction on the horizontal plane. In practical applications, each horizontal direction includes a substantially vertical forward / backward direction and a left / right direction.

[0033] Please combine Figures 1 to 3 The slitting device includes a blade pad structure 100, a material pushing assembly 200, and a cutting assembly 300.

[0034] The upper surface of the blade pad structure 100 defines a placement area 111 for placing sheet material 80. The blade pad structure 100 protrudes upward at the front edge of the placement area 111 to form a rearward thrust surface 122. A through hole 140 is partially formed downward at the front edge of the placement area 111. At least one side wall of the through hole 140 defines a cutting reference surface 112. The front surface of the blade pad structure 100 defines a blade-setting reference surface 113.

[0035] The feeding assembly 200 includes a pusher 210 movable in the front-rear direction and a first drive mechanism 230. The pusher 210 is located on the rear side of the placement area 111. Driven by the first drive mechanism 230, it pushes the sheet material 80 forward, so that the front surface of the sheet material 80 abuts the thrust surface 122, and the uncut protrusion 81 of the sheet material 80 extends forward into the through hole 140.

[0036] The cutting assembly 300 includes a vertically movable cutter 310 and a second drive mechanism 320. The cutter 310 includes a cutter body 311 and a cutter holder 312. The cutter body 311 defines a cutting alignment surface 314. The cutter holder 312 defines a rearward-facing cutter alignment surface 313. The second drive mechanism 320 drives the cutter body 311 downward into the through hole 140 to cut the protrusion 81 to be cut.

[0037] In this arrangement, at least one of the blade pad structure 100 and the blade 310 is movably disposed relative to the other in the front-back direction, so that before the blade 310 moves downward, the blade alignment surface 313 is driven to abut against the blade reference surface 113, and then the cutting alignment surface 314 is driven to abut against the cutting reference surface 112.

[0038] In the technical solution provided by the present invention, when the slitting step needs to be performed, the blade pad structure 100 will first be offset from the cutting component 300 in the front-back direction, so that sufficient space can be reserved in the vertical upper part of the blade pad structure 100, which facilitates the manual or motorized feeding operation of the sheet material 80.

[0039] The pusher assembly 200 can push the sheet material 80 against the thrust surface 122, thereby helping to limit the sheet material 80 together with the thrust surface 122, ensuring that the front edge of the sheet material 80 is in the correct position before cutting, and that the protrusion 81 to be cut is fully inserted into the through hole 140, thus achieving accurate positioning of the sheet material 80 and improving the subsequent cutting accuracy.

[0040] Then, during the forward and backward movement adjustment of the blade pad structure 100 and the cutting assembly 300, the contact between the blade alignment surface 313 and the blade reference surface 113 can accurately indicate the precise positioning of the forward and backward movement between the blade pad structure 100 and the cutting assembly 300.

[0041] During the downward movement of the tool 310, the tool setting alignment surface 313 and the tool setting reference surface 113 continuously abut against each other, and the cutting alignment surface 314 and the cutting reference surface 112 abut against each other, which helps to indicate the accurate position between the tool body 311 and the through hole 140.

[0042] This application cleverly utilizes various reference planes and combines the movement scheme of the blade pad structure 100 and / or the cutting assembly 300 to help improve the positional accuracy during the slitting process. This helps to improve the slitting quality on the one hand, and also helps to reduce unnecessary wear between the blade pad structure 100 and the blade body 311 on the other hand, ultimately helping to improve the overall reliability of the machine.

[0043] Optionally, the slitting device may also include a base 700. The specific form of the base 700 is not limited, and it may be composed of one or more of the following: a frame, a plate, a box, or a block.

[0044] The blade pad structure 100, the pusher assembly 200, and the cutting assembly 300 are all directly or indirectly mounted on the base 700.

[0045] Firstly, regarding the structure of blade pad structure 100: The blade pad structure 100 can be constructed from a single unit structure. Alternatively, please combine... Figures 4 to 9 The blade pad structure 100 may include at least two individual structures, and is composed of combinations of these individual structures. Each individual structure may include, for example, a first block 110 and a second block 120.

[0046] At least a partial area of ​​the upper surface of the first block 110 defines a placement area 111. The placement area 111 extends at least forward to the front edge adjacent to the first block 110. That is, the front edge of the placement area 111 is substantially collinear with the front edge of the first block 110.

[0047] The entire front surface of the first block 110 can be directly used as a subsequent reference surface. Alternatively, in a specific embodiment, the first block 110 itself can be composed of at least two single-unit structures, such as a base member and a reference member 130. The base member defines the mounting area 111 as described above. The reference member 130 is connected to the front surface of the base member. Correspondingly, the front surface of the reference member 130 serves as a subsequent reference surface.

[0048] A through groove 121 is formed vertically in a portion of the rear surface of the second block 120. The second block 120 is fixedly connected to the front surface of the first block 110, and the opening of the through groove 121 is sealed by the front surface of the first block 110, thus defining the through hole 140. Of course, the part of the first block 110 corresponding to the through groove 121 can be a flat surface, or it can also be set as a groove structure.

[0049] As can be seen from the above, the function of the through hole 140 is twofold: firstly, it allows the protrusion 81 to be cut to remain suspended before cutting, thereby forming sufficient vertical space for the blade body 311 to move vertically; secondly, it allows the protrusion to fall downwards after cutting.

[0050] Correspondingly, in a further embodiment, the cutting device also includes a slag collection structure 500. The slag collection structure 500 can, for example, also be configured as a block structure. The interior of the slag collection structure 500 defines a slag collection cavity 510. The slag collection structure 500 is detachably connected to the blade pad structure 100, thus having both a detached and a connected state.

[0051] When in the connected state, the slag collection chamber 510 is connected to the through hole 140. The slag collection chamber 510 and the through hole 140 can be directly connected. Or as... Figure 5 As shown, the slag collection chamber 510 can be connected to the through hole 140 via the connecting pipe 520.

[0052] When switched to the detachment state, the slag collection structure 500 can be separated from the main body 312a of the cutting device, thereby facilitating the holding of the slag collection structure 500 for operations such as slag discharge or cleaning.

[0053] Therefore, the through groove 121, through hole 140, and / or connecting pipe 520 can be arranged with a constant diameter along the vertical direction. Alternatively, the through groove 121, through hole 140, and / or connecting pipe 520 can be configured as a variable diameter structure according to actual needs. For example... Figure 5 and Figure 9 As shown, the width of the through groove 121 / through hole 140 in the left-right direction can be increased from top to bottom. This increase can be a stepped increase or a continuous, gradual increase. This ensures that excessive space is not formed in the upper section of the through groove 121 / through hole 140, which could affect the alignment of the cutter body 311 and / or the protrusion 81 to be cut. At the same time, a larger space is formed in the lower section of the through groove 121 / through hole 140 to prevent debris from adsorbing and clogging.

[0054] Of course, in a further solution, the air supply component 600 described below can be used, for example, the air supply port is set in the upper section of the through groove 121 / through hole 140, and a downward positive pressure is formed at the air supply port, so that the airflow flows downward and drives the cut debris to fall quickly, avoiding the formation of residue at the blade body 311 and / or the placement area 111.

[0055] And / or the air inlet can be located in the lower section of the through groove 121 / through hole 140, and a downward negative pressure can be formed at the air inlet. This also allows the airflow to flow downward, causing the cut debris to fall quickly and preventing residue from forming at the blade body 311 and / or the placement area 111.

[0056] Of course, anti-static components can also be installed at the through groove 121, through hole 140, connecting pipe 520 and / or slag collection chamber 510 to prevent debris from forming electrostatic adsorption. The anti-static component can be any mechanism that utilizes vibration, plasma, etc., without limitation.

[0057] After the second block 120 is connected to the front surface of the first block 110, the front surface of the first block 110 (that is, the reference surface mentioned above) will be divided into a cutting reference surface 112 facing the slot and a tool setting reference surface 113 located on the side of the second block 120.

[0058] It can be understood that the same blade pad structure 100 may have one or more placement areas 111. And / or the same placement area 111 may have one or more through holes 140.

[0059] Correspondingly, the cutting reference surface 112 is set in a one-to-one correspondence with the through hole 140. Each cutting reference surface 112 can be set to be the same or at least partially different. The specific choice depends on the specific cutting scheme required for each protrusion 81 to be cut.

[0060] Tool setting reference plane 113 can be set to one or at least two. For example... Figures 4 to 9 In the structure shown, there are two tool setting reference surfaces 113. The two tool setting reference surfaces 113 are respectively located on the left and right sides common to each cutting reference surface 112.

[0061] After the second block 120 is assembled to the first block 110, a portion of it protrudes upward from the first block 110, thereby naturally defining a rearward thrust surface 122 at the protruding portion. Correspondingly, the through groove 121 forms a rearward slot section at the protruding portion that is not covered by the first block 110. For ease of understanding, this slot section is defined as an inlet slot.

[0062] In the initial state, the sheet material 80 can be freely placed in any area of ​​the placement area 111. When the pusher 210 is driven forward by the first drive mechanism 230, the pusher 210 first enters the placement area 111 from back to front, then abuts against the rear surface of the sheet material 80, and then pushes the sheet material 80 forward. Finally, the front surface of the sheet material 80 abuts against the thrust surface 122, indicating that the pusher assembly 200 has pushed the material into place. At the same time, the protrusion to be cut 81 is pushed forward through the inlet slot into the through slot 121 / through hole 140 and remains suspended.

[0063] like Figures 4 to 10 As shown, in a further embodiment, the upper surface of the first block 110 may be recessed with a guide groove 114. The guide groove 114 extends through the first block 110 in the front-rear direction. The pushing assembly 200 also includes a guide protrusion 220. The guide protrusion 220 is connected to the pushing member 210, and the two remain relatively fixed. The guide protrusion 220 extends into the guide groove 114. The first drive mechanism 230 can be directly connected to the guide protrusion 220 and / or the pushing member 210. By guiding the movement of the guide protrusion 220 with the help of the guide groove 114, the movement trajectory of the pushing member 210 can be ensured to be basically accurate, thereby allowing the sheet material 80 to be pushed into place smoothly and accurately.

[0064] The pusher 210 and the guide protrusion 220 can be integrally formed. Alternatively, the pusher 210 and the guide protrusion 220 can be detachably or non-detachably connected and fixed after being separately formed.

[0065] In practical applications, the guide groove 114 can be offset to the left or right side of the placement area 111. This ensures that the movement of the guide protrusion 220 within the guide groove 114 will not significantly affect the sheet material 80 in the placement area 111.

[0066] Or such as Figures 4 to 10 As shown, the guide groove 114 can be provided through the placement area 111 in the front-to-back direction. That is, at least a portion of the guide groove 114 is located within the placement area 111. And when the placement area 111 is filled with sheet material 80, at least a portion of the guide groove 114 is located below the sheet material 80.

[0067] More specifically, if the through hole 140 has a first center line extending in the front-back direction, and the guide groove 114 has a second center axis extending in the front-back direction, then the first center line and the second center axis are collinear or parallel. This means that the guide groove 114 is positioned as close as possible to the center of the through hole 140, that is, as close as possible to the center of the protrusion 81 to be cut, which helps the pusher assembly 200 to push the sheet material 80 in a balanced and stable manner.

[0068] Based on this, in a further embodiment, the width of the guide groove 114 can be set to be smaller than the width of the placement area 111 in the same direction (i.e., left and right). Generally, the left and right dimension of the placement area 111 is set to be larger, so that sheet materials 80 of any size can be placed. For example... Figure 4 Large-sized material 80a and small-sized material 80b.

[0069] When the lateral dimension of the sheet material 80 (e.g., large-size material 80a) is greater than the width of the guide groove 114, the large-size material 80a can be well lifted upward by means of the placement areas 111 located on the left and right sides of the guide groove 114.

[0070] When the lateral dimension of the sheet material 80 (e.g., small-sized material 80b) is smaller than the width of the guide groove 114, the first block 110 can further protrude within the guide groove 114 to form a support protrusion 150. The upper surface of the support protrusion 150 is flush with the placement area 111 at its location. The lateral dimension of the support protrusion 150 is set to be smaller than the width of the guide groove 114. In this way, the support protrusion 150 can effectively lift the small-sized material 80b upwards.

[0071] The support protrusion 150 is generally positioned forward and close to the through hole 140. That is, it is at least located in the section of the guide groove 114 closer to the through hole 140. This also makes the support protrusion 150 more suitable for lifting small-sized materials 80b, which also have smaller front-to-back dimensions.

[0072] Furthermore, in the first block 110, at least the surface where the placement area 111 is located extends gradually downward from front to back. Optionally, the tilt angle is not less than 7.5° and not more than 8.5°. More preferably, the tilt angle can be specifically set to about 8°.

[0073] When the sheet material 80 is relatively brittle and hard, if the placement area 111 extends straight in the horizontal direction, that is, the blade 311 tends to cut the protrusion 81 to be cut perpendicularly. At this time, the cutting force of the blade 311 acts perpendicularly on the material cut surface, and the stress will be concentrated at the sharp corners of the cut surface and the internal grain boundaries. The molecular / grain boundary bonding force of the brittle sheet material 80 is weak, and it is very easy to produce edge chipping, micro-cracks, slag shedding, or even overall cracking along the stress direction.

[0074] By tilting the placement area 111, when the blade 311 is not perpendicular to the oblique cut, the cutting force is dispersed along the oblique surface, and the stress is evenly transferred to a larger contact surface, avoiding local stress overload. This makes the cut edge smoother, without micro-cracks, greatly improving the structural integrity of the material, dispersing the cutting stress, and significantly reducing the probability of edge chipping, cracking, and chipping.

[0075] In addition, non-perpendicular cutting can also help reduce burrs, improve the uniformity of force distribution, and enhance the strength of the cut to some extent.

[0076] When the material of the sheet material 80 is relatively flexible, it helps to avoid stretching, curling, and deformation of the flexible sheet material 80.

[0077] Please combine Figures 11 to 13 The rear surface of the blade body 311 defines the cutting alignment surface 314. Since the blade body 311 moves downwards to cut the protrusion 81, the connecting edge between the rear surface and the lower end surface of the blade body 311 generally constitutes the cutting edge 311a. The cutting edge 311a is the part of the blade body 311 that mainly performs the cutting function. The cutting edge 311a is generally relatively sharp.

[0078] In practical applications, the cutting edge 311a can extend straight or obliquely in the left-right direction. The cutting edge 311a can be a straight ridge, or it can be composed of multiple sharp protrusions.

[0079] The rear surface of the blade body 311 connected to the cutting edge 311a serves as the cutting alignment surface 314. This ensures that the cutting alignment surface 314 remains in contact with the cutting reference surface 112 in real time during the cutting process. The cutting orientation of the blade body 311 can be calibrated in real time.

[0080] The lower surface of the blade body 311 connected to the cutting edge 311a is the cutting end face 311b. The cutting end face 311b can be configured to gradually slope upwards from back to front. In this way, it can be ensured that at the lower surface of the blade body 311, only the cutting edge 311a is most convex. This also ensures that during the downward movement of the blade body 311, the cutting edge 311a is basically the first to come into contact with the cutting protrusion 81 and complete the cutting operation.

[0081] And / or the front surface of the blade 311 is the cutting back surface 311c. The cutting back surface 311c extends gradually forward at an angle from bottom to top. In this way, the blade 311 is equivalent to forming a wedge. As the blade 311 gradually moves downward, it causes the cutting back surface 311c to gradually approach and abut against the wall of the hole opposite the through hole 140 and the cutting alignment surface 314, thereby ensuring that the cutting alignment surface 314 and the cutting reference surface 112 remain in contact. On the other hand, the cutting back surface 311c limits and stops the downward movement of the blade 311.

[0082] As described above, depending on actual needs, at least two tool setting reference surfaces 113 are provided, and each tool setting reference surface 113 is located on the left and right sides of the cutting reference surface 112. And / or at least two placement areas 111 are provided at intervals along the left and right direction.

[0083] Furthermore, the tool holder 312 at least defines a portion of the tool alignment surface 313 that protrudes downward from the tool body 311. For example... Figures 11 to 13 As shown, the tool holder 312 may include a main body 312a and an extension 312b. The main body 312a and the tool body 311 may be integrally formed. Alternatively, the main body 312a and the tool body 311 may be separately formed, and the two may be detachably or non-detachably connected.

[0084] The rear surface of the extension 312b defines a tool-setting alignment surface 313. Similarly, the main body 312a and the extension 312b can be integrally formed. Alternatively, the main body 312a and the extension 312b can be separately formed and then connected in a detachable or non-detachable manner.

[0085] The extension portion 312b can be disposed on the left and right sides of the cutter body 311. The extension portion 312b extends downward from the main body portion 312a by a length L1. The cutter body 311 extends downward from the main body portion 312a by a length L2. Therefore, L1 is set to be greater than L2. Thus, when the cutter body 311 moves downward, the extension portion 312b first moves down to the front of the tool setting reference surface 113. This allows the tool setting alignment surface 313 to preferentially align with the tool setting reference surface 113, achieving precise positioning of the entire cutter 310. Then, the cutter body 311 can accurately move downward into the through hole 140 to complete the cutting operation.

[0086] As described above, both the blade pad structure 100 and the cutting component 300 have a forward-backward travel distance. Specifically, the blade pad structure 100 can actively move relative to the base 700 in the forward-backward direction, while the cutting component 300 is fixed relative to the base 700. Alternatively, the cutting component 300 can actively move relative to the base 700 in the forward-backward direction, while the blade pad structure 100 is fixed relative to the base 700. Alternatively, both the blade pad structure 100 and the cutting component 300 can actively move relative to the base 700 in the forward-backward direction, but their directions of movement are opposite, or their directions of movement are the same but at different speeds.

[0087] and Figures 1 to 16 The structure shown is illustrated using the example of the cutting component 300 being fixed relative to the base 700, and the blade pad structure 100 being able to move actively relative to the base 700 in the front-back direction.

[0088] Furthermore, in order to make the forward and backward movement of the blade pad structure 100 more precise and intelligently controllable, the slitting device generally also includes a third drive mechanism 440. The third drive mechanism 440 is connected directly or indirectly to the blade pad structure 100, for example.

[0089] The blade pad structure 100 can be directly connected to the third drive mechanism 440. Alternatively, in one embodiment, the slitting device also includes a movable seat 410. The movable seat 410 is movably mounted on the base 700 in the front-rear direction. The movable seat 410 is connected to the third drive mechanism 440. The blade pad structure 100 is connected to the movable seat 410 so that it can be moved when the movable seat 410 moves.

[0090] In practical applications, the third drive mechanism 440 and the movable seat 410 can be represented by a linear module, for example. This allows existing linear modules to be directly applied to drive the movement of the tool-setting pad structure 100.

[0091] In a further embodiment, the slitting device also includes a buffer 430. The buffer 430 is disposed between the movable seat 410 and the blade pad structure 100.

[0092] The buffer 430 can act on the blade pad structure 100 when it is subjected to an external impact, to prevent a large impact between the blade pad structure 100 and the movable seat 410. Conversely, the buffer 430 can also act on the movable seat 410 when it is subjected to an external impact, to prevent a large impact between the blade pad structure 100 and the movable seat 410.

[0093] Furthermore, the buffer direction of the buffer 430 can be any suitable direction. For example, along the front-back direction, left-right direction, etc., which can be specifically set according to actual needs.

[0094] The slitting device may also include a connecting seat 420. The connecting seat 420 can be connected and fixed to any single structure of the blade pad structure 100 (i.e., the first block 110 and / or the second block 120). A buffer 430 is disposed between the connecting seat 420 and the movable seat 410.

[0095] As can be seen from the above, the specific designs of the first drive mechanism 230, the second drive mechanism 320, and the third drive mechanism 440 are not limited, and they can be specifically adjusted according to the specific designs of the corresponding pusher 210, the cutter 310, and the cutter pad structure 100.

[0096] Furthermore, additionally, guide rail mechanisms, sensor components, etc., can be provided for the first drive mechanism 230, the second drive mechanism 320, and the third drive mechanism 440 as needed. For example, a guide rail mechanism can be provided between the movable seat 410 and the base 700, and / or a guide rail mechanism can be provided between the connecting seat 420 and the base 700.

[0097] In addition, the slitting device also includes a gas delivery assembly 600. The gas delivery assembly 600 includes a gas delivery pipe 610 for flowing gas. The gas delivery assembly 600 may also optionally include a drive device, such as a pump or a fan. The gas delivery pipe 610 is provided with a gas delivery port. Positive pressure can be created at the gas delivery port to blow air outwards, or negative pressure can be created to draw air inwards.

[0098] At this point, according to actual needs, in one specific solution, the air inlet is positioned towards the cutter body 311. This allows for timely cleaning of residual debris on the cutter body 311. And / or the air inlet is positioned towards the mounting area 111. This allows for timely cleaning of residual debris on the mounting area 111. And / or the air inlet can be positioned towards the through hole 140 as described above. This allows for timely cleaning of residual debris, especially at the opening, of the through hole 140.

[0099] Based on one or more of the above embodiments, in practical applications, when a slitting step needs to be performed, the blade pad structure 100 will first be offset from the cutting component 300 in the front-back direction, so that sufficient space can be reserved in the vertical upper part of the blade pad structure 100 for the feeding operation of the sheet material 80.

[0100] The sheet material 80 can be fed manually or by motor. After the sheet material 80 is placed in the placement area 111, at least one of its cut protrusions 81 is directed to face forward.

[0101] The feeding assembly 200 starts operating. Driven by the first drive mechanism 230, the pusher 210 moves from back to front and, after entering the placement area 111, pushes the sheet material 80 forward until the front surface of the sheet material 80 abuts against the thrust surface 122, and the uncut protrusion 81 of the sheet material 80 extends forward into the through hole 140 and is suspended above the through hole 140. Then, the feeding assembly 200 stops operating.

[0102] Next, the cutting assembly 300 and the blade pad structure 100 are operated to move relative to each other in the front-to-back direction, causing the blade setting reference surface 113 of the blade pad structure 100 to move behind the blade setting mating surface. Then, based on the second drive mechanism 320, the blade 310 is driven to move downward to a preset distance, so that the orthographic projection of the blade setting alignment surface 313 and the blade setting reference surface 113 in the front-to-back direction at least partially coincides. Then, the cutting assembly 300 and / or the blade pad structure 100 are operated to move in the front-to-back direction, so that the blade setting alignment surface 313 and the blade setting reference surface 113 are aligned.

[0103] Finally, the second drive mechanism 320 drives the cutter 310 to move downward. During the downward movement of the cutter 310, the tool alignment surface 313 and the tool reference surface 113 remain in contact, the cutting alignment surface 314 and the cutting reference surface 112 are in contact, and the cutting edge 311a of the cutter body 311 cuts the protrusion 81 to be cut suspended at the through hole 140, thus completing the slitting step.

[0104] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A slitting device, characterized in that, include: The blade pad structure has an upper surface that defines a placement area for placing sheet material. The blade pad structure protrudes upward at the front edge of the placement area to form a rearward thrust surface, and a through hole is partially formed downward at the front edge of the placement area. At least one side wall of the through hole defines a cutting reference surface, and the front surface of the blade pad structure defines a blade setting reference surface. The material pushing assembly includes a pusher movable in a front-rear direction and a first driving mechanism. The pusher is located at the rear side of the placement area and can push the sheet material forward under the drive of the first driving mechanism, so that the front surface of the sheet material abuts against the thrust surface and the protrusion to be cut of the sheet material extends forward into the through hole; and, A cutting assembly includes a vertically movable blade and a second drive mechanism. The blade includes a blade body and a blade holder. The blade body defines a cutting alignment surface, and the blade holder defines a rearward blade alignment surface. The second drive mechanism drives the blade body to extend downward into the through hole to cut off the protrusion to be cut. In this configuration, at least one of the blade pad structure and the blade is movably arranged relative to the other in a front-rear direction, so that before the blade moves downward, the blade alignment surface is driven to abut against the blade reference surface, and then the cutting alignment surface is driven to abut against the cutting reference surface.

2. The slitting device as described in claim 1, characterized in that, The blade pad structure includes: A first block, the upper surface of which defines the placement area extending to its front edge, and is recessed with a guide groove that extends through the first block in a front-rear direction; and, The second block has a vertically formed through groove on a portion of its rear surface. The second block is fixedly connected to the front surface of the first block to seal the opening of the through groove and define the through hole. The front surface of the first block is divided into the cutting reference surface facing the opening of the groove and the tool setting reference surface located next to the second block. The second block protrudes upward from the first block and defines the thrust surface. The material pushing assembly further includes a guide protrusion, which is connected to the pusher and can be driven by the first driving mechanism to move along the guide groove.

3. The slitting device as described in claim 2, characterized in that, The guide groove is provided to penetrate the placement area in the front-to-back direction; The width of the guide groove is less than the width of the placement area in the same direction; and / or, The through hole has a first center line extending in the front-back direction, and the guide groove has a second center axis extending in the front-back direction. The first center line and the second center axis are collinear or parallel.

4. The slitting device as described in claim 2, characterized in that, The first block protrudes into the guide groove to form a support protrusion, and the upper surface of the support protrusion is flush with the placement area at the location. The width of the guide groove is greater than the width of the supporting protrusion in the same direction; and / or, The support protrusion is positioned forward and close to the through hole.

5. The slitting device as described in claim 1, characterized in that, The surface of the placement area slopes gradually downwards from front to back; or... The surface of the placement area gradually slopes downward from front to back, with an angle of inclination of not less than 7.5° and not more than 8.5°.

6. The slitting device as described in claim 1, characterized in that, The cutting device further includes a slag collection structure, which has a slag collection cavity. The slag collection structure is detachably connected to the blade pad structure, and the slag collection cavity communicates with the through hole.

7. The slitting device as described in claim 1, characterized in that, The rear surface of the blade defines the cutting alignment surface, and the connecting edge between the rear surface of the blade and its lower end surface constitutes the cutting edge. The lower surface of the blade body extends gradually upwards from back to front; and / or, The front surface of the blade body gradually slopes forward from bottom to top.

8. The slitting device as described in claim 1, characterized in that, The tool setting reference surface is provided with at least two, and each of the tool setting reference surfaces is located on the left and right sides of the cutting reference surface; and / or, The placement area is provided with at least two spaces spaced apart along the left-right direction; and / or, The tool holder at least defines a portion of the tool alignment surface that protrudes downward from the tool body.

9. The slitting device as described in claim 1, characterized in that, The slitting device further includes: A movable seat is provided that can be moved along the front-to-back direction, and the blade pad structure is provided on the movable seat; A third driving mechanism is connected to the movable seat and can drive the movable seat to move the tool pad structure relative to the tool; and, A buffer is disposed between the movable seat and the blade pad structure.

10. The slitting device as claimed in claim 1, characterized in that, The slitting device further includes a gas conveying assembly, which includes a gas conveying pipe for passing gas through it, and the gas conveying pipe is provided with a gas inlet. The air inlet is oriented toward the blade body; and / or, The gas inlet is positioned facing the placement area; and / or, The gas inlet is positioned facing the through hole.

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