Wiring mechanism and slicing machine

Abstract

The utility model relates to the technical field of multi-wire cutting, in particular to a wiring mechanism and a slicing machine. The wiring mechanism comprises a transmission belt, a wire shifting assembly and a driving assembly, wherein the transmission belt is sleeved on each main roller; the wire shifting assembly comprises a fixed sleeve, a rotating sleeve and a screw rod which are coaxially sleeved in sequence from outside to inside, the fixed sleeve is fixedly arranged on the transmission belt, the rotating sleeve is in threaded connection with the fixed sleeve, and the screw rod is arranged in the fixed sleeve in a sliding mode in the first direction; the first end of the screw rod is in threaded connection with the rotating sleeve, the central axis of the screw rod is parallel to the central axis of each main roller, and the second end of the screw rod is provided with a wire locking structure for limiting a cutting wire; the driving assembly can drive the screw to step by a preset distance relative to the transmission belt in the first direction. The wiring mechanism replaces manual work to arrange the cutting line on the circumferential surface of the main roller, the wiring precision and the wiring efficiency are improved, and the wiring mechanism is flexible and reliable to use and wide in applicability.

Description

Technical Field

[0001] This application relates to the field of multi-wire cutting technology, and in particular to a wiring mechanism and a slicing machine. Background Technology

[0002] Multi-wire dicing is a cutting process that uses the high-speed reciprocating motion of metal wires to simultaneously cut semiconductor rods into hundreds of thin wafers. Multi-wire dicing machines have gradually replaced traditional internal circular dicing and become the main method for silicon wafer cutting.

[0003] Currently, the wiring of multi-wire slicing machines is mostly done manually. The winding method is as follows: 1. Fixing the wire end: Fix one end of the cutting wire at the starting point. This can be done using tape or by using slots, clamps, etc., to ensure the wire end is secure and prevent it from loosening during winding. 2. Starting winding: Manually wind the cutting wire along the groove or surface of the main roller. During the winding process, maintain uniform tension on the cutting wire to avoid slack or excessive tightness. Uniform winding can be achieved by manually controlling the wire release speed and the rotation speed of the main roller. If necessary, manually guide the wire into the groove.

[0004] With technological advancements, silicon wafers are now being cut thinner and thinner, resulting in increasingly denser grooves on the main roller, making manual winding more difficult and less efficient. Utility Model Content

[0005] The first objective of this application is to provide a wiring mechanism to solve the technical problems of high difficulty and low efficiency of manual wiring in the prior art.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A wiring mechanism is applied in a slicing machine, the slicing machine including at least two parallel and spaced-apart main rollers disposed on a machine body; the wiring mechanism includes a drive belt, a wire-picking assembly, and a drive assembly, wherein:

[0008] The drive belt is fitted onto each main roller;

[0009] The wire-cutting assembly includes a fixed sleeve, a rotating sleeve, and a screw, which are coaxially mounted from the outside to the inside. The fixed sleeve is fixedly mounted on the transmission belt, and the screw is slidably mounted inside the fixed sleeve along a first direction. The outer circumference of the first end of the screw is provided with a first external thread, and the inner wall of the rotating sleeve is provided with a first internal thread that mates with the first external thread. The inner wall of the fixed sleeve is provided with a second internal thread, and the outer wall of the rotating sleeve is provided with a second external thread that mates with the second internal thread. The central axis of the screw is parallel to the central axis of each main roller, and the second end of the screw is provided with a wire-locking structure for defining the cutting wire.

[0010] The drive assembly is connected to the rotating sleeve and is configured to drive the rotating sleeve to rotate relative to the fixed sleeve, thereby causing the screw to step a preset distance relative to the transmission belt in a first direction. The preset distance is equal to the distance between two adjacent grooves on the main roller, and the first direction is the extension direction of the central axis of the screw.

[0011] The wiring mechanism provided in this application replaces manual placement of the cutting wire on the circumference of the main roller, improving wiring accuracy and efficiency. Furthermore, by adjusting the rotation angle of the rotating sleeve relative to the fixed sleeve each time, the preset step distance of the screw relative to the transmission belt can be adjusted, thereby adapting to main rollers with different wire spacing requirements, making it more flexible and applicable.

[0012] In some embodiments, the first internal thread and the second internal thread have opposite directions of rotation.

[0013] In some embodiments, the first internal thread and the second internal thread have the same direction of rotation but different pitches.

[0014] In this embodiment, the wire-shifting assembly includes two threaded pairs with opposite or the same helix direction but different pitches, forming a differential screw drive. The differential screw drive is characterized by consisting of two threaded pairs that cause differential movement between the rotating sleeve and the screw. In the embodiment where the wire-shifting assembly includes two threaded pairs with opposite helix directions, the displacement of the screw relative to the fixed sleeve along the first direction for each revolution of the rotating sleeve is equal to the sum of the pitches of the two threaded pairs. In the embodiment where the wire-shifting assembly includes two threaded pairs with the same helix direction but different pitches, the displacement of the screw relative to the fixed sleeve along the first direction for each revolution of the rotating sleeve is equal to the difference in the pitches of the two threaded pairs.

[0015] In some embodiments, the single-step accuracy of the screw is greater than or equal to 0.01 mm, and the step distance of the screw along the first direction is greater than or equal to 10 mm.

[0016] By controlling the single-step accuracy of the screw to greater than or equal to 0.01mm and the step stroke of the screw along the first direction to greater than or equal to 10mm, the wiring requirements of most slicing machines can be met, and the adaptability of the wiring mechanism can be improved.

[0017] In some embodiments, the wire-pulling assembly further includes a limiting component, wherein the circumferential surface of the screw is provided with a limiting groove extending in a first direction, and the limiting component is configured to cooperate with the limiting groove to allow the screw to slide in the first direction.

[0018] By using the limiting component and the limiting groove together, the movement of the screw is restricted to sliding only in the first direction, thereby further improving the wiring accuracy.

[0019] In some embodiments, the drive assembly includes an operating component and a responding component, the operating component being disposed on the machine body and the responding component being connected to the rotating sleeve;

[0020] The operating component is configured to actuate the response component once each time the wire-shifting assembly rotates around each main roller with the transmission belt, thereby causing the rotating sleeve to rotate relative to the fixed sleeve by a set angle, and in turn causing the screw to advance a preset distance relative to the transmission belt in the first direction.

[0021] During the wiring process, each time the wire-picking assembly rotates once around each main roller with the transmission belt, the operating component actuates the response component. The response component transmits power to the screw through the rotating sleeve, causing the screw to drive the end of the cutting wire to step one groove spacing relative to the transmission belt in the first direction.

[0022] In some embodiments, the responsive component is a gear that is driven to the rotating sleeve, and the operating component is a rack, lever, or gear fixedly mounted on the machine body.

[0023] Alternatively, the responding component is a friction wheel that is driven to the rotating sleeve, and the operating component has a friction surface for contacting the friction wheel;

[0024] Alternatively, the responding component is an outer surface with frictional force on the outer periphery of the rotating sleeve, and the operating component has a frictional surface for contacting the outer surface.

[0025] When the responding component passes and contacts the operating component under the drive of the transmission belt, the responding component, blocked by the operating component, drives the rotating sleeve to rotate relative to the fixed sleeve in the opposite direction of its forward direction. In embodiments where the responding component is a gear, the responding component and the operating component drive the rotating sleeve to rotate through meshing transmission; in embodiments where the responding component is a friction wheel or friction surface, the responding component and the operating component drive the rotating sleeve to rotate through friction transmission. Compared with the two transmission methods, the meshing transmission method has higher transmission accuracy and is less prone to slippage.

[0026] In some embodiments, the drive assembly further includes a variable speed transmission structure that is driveably connected between the rotating sleeve and the responsive component.

[0027] The variable speed transmission structure can be either an acceleration transmission structure or a deceleration transmission structure, which can be selected according to the actual requirements of the screw's preset step distance. Generally, the variable speed transmission structure is a deceleration transmission structure. By setting a deceleration transmission structure between the rotating sleeve and the response component, the rotational accuracy of the rotating sleeve can be improved.

[0028] In some embodiments, the response component is a gear, and the transmission structure includes a first gear meshing with the response component. The first gear is fixedly connected to the rotating sleeve, and the ratio of the rotational speed of the response component to the rotational speed of the first gear is greater than 1.

[0029] Alternatively, the speed transmission structure includes a first gear and a second gear that mesh with each other, the first gear being fixedly connected to the rotating sleeve, the second gear being drivenly connected to the response component, and the ratio of the rotational speed of the second gear to the rotational speed of the first gear being greater than 1;

[0030] Alternatively, the transmission structure includes a second gear, a third gear, and a first gear meshing sequentially. The first gear is fixedly connected to the rotating sleeve, the second gear is connected to the response component, and the third gear is connected between the first gear and the second gear. The ratio of the rotational speed of the second gear to the rotational speed of the third gear is greater than 1, and the ratio of the rotational speed of the third gear to the rotational speed of the first gear is greater than 1.

[0031] Gear transmission mechanisms have advantages such as high transmission efficiency, accurate transmission ratio, compact structure, and small size. The more gears in a transmission structure, the larger the overall transmission ratio, but the larger the size of the transmission structure also becomes. The number of gears in the transmission structure and the transmission ratio of two meshing gears are adjusted according to actual needs.

[0032] In some embodiments, the wire locking structure includes a wire locking groove or a wire locking hole, and the end of the cutting wire is fixed in the wire locking groove or the wire locking hole;

[0033] And / or, the wire locking structure includes a locking screw screwed into the second end of the screw rod, and the end of the cutting wire is clamped between the locking screw and the screw rod.

[0034] The wire locking structure may include one or more of a wire locking groove, a wire locking hole, and a locking screw. When the wire locking structure includes both a wire locking groove (or a wire locking hole) and a locking screw, to lock the end of the cut wire, the end of the cut wire is passed through the wire locking groove, then wound in the opposite direction around the screw and the locking screw, and then the locking screw is tightened to clamp the end of the wire between the screw head and the screw. To release the cut wire, simply loosen the locking screw to remove the end of the cut wire from the screw.

[0035] In some embodiments, the transmission belt has a segmented structure;

[0036] And / or, the outer surface of the drive belt is provided with mounting protrusions, and the cable pull assembly is disposed on the mounting protrusions;

[0037] And / or, each main roller is provided with a first limiting structure on its circumferential surface that is fitted and connected to the drive belt;

[0038] And / or, the inner surface of the transmission belt is provided with a second limiting structure that engages with each main roller.

[0039] In the above structure, by setting the transmission belt to a segmented structure, it is convenient to mount the transmission belt onto each main roller; the mounting protrusion provides a mounting surface for the wire-shifting assembly, which facilitates the installation of the wire-shifting assembly; setting the main roller and transmission belt to a fitted connection structure can limit the relative position of the main roller and transmission belt and prevent the transmission belt from slipping relative to the main roller.

[0040] In some embodiments, the wiring mechanism further includes a feed roller for providing the cut wire and / or a guide roller for guiding the cut wire to the main roller.

[0041] The pay-off roller is rotatably mounted on the machine body, and the cutting wire is wound onto it. During the wiring process, the wire-guiding assembly rotates around each main roller under the drive of the transmission belt. Simultaneously, the pay-off roller rotates to pay off the wire, and the cutting wire is wound onto the main roller under the traction of the screw. To ensure that the cutting wire on the pay-off roller is smoothly wound onto each main roller, the wiring mechanism also includes guide rollers for guiding the cutting wire to the main rollers. The number of guide rollers can be one, two, or more.

[0042] The second objective of this application is to provide a slicing machine comprising a machine body, at least two parallel and spaced main rollers disposed on the machine body, and a wiring mechanism for any of the above.

[0043] This slicing machine uses a wiring mechanism to replace manual placement of the cutting lines on the circumference of the main roller, improving wiring accuracy and efficiency. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 A schematic diagram of the forward motion of the wiring mechanism, each active roller, and the cutting line provided in the embodiments of this application during the wiring process;

[0046] Figure 2 for Figure 1 A schematic diagram of lateral motion in the embodiment shown;

[0047] Figure 3 for Figure 1 A partial cross-sectional view of the dial assembly provided in the illustrated embodiment;

[0048] Figure 4 for Figure 1 The schematic diagram of the transmission principle of the operating component and the response component provided in the embodiment shown;

[0049] Figure 5 for Figure 2 A magnified view of a portion of the dial assembly;

[0050] Figure 6 for Figure 5 Enlarged view at point A;

[0051] Figure 7 This is a schematic diagram of an assembly structure of a transmission belt and a main roller provided in an embodiment of this application;

[0052] Figure 8 This is a schematic diagram of another assembly structure of the transmission belt and main roller provided in an embodiment of this application;

[0053] Figure 9 This application provides an assembly diagram of a speed transmission structure according to one embodiment;

[0054] Figure 10 for Figure 9 Sectional view at BB;

[0055] Figure 11 This application provides an assembly schematic diagram of a speed transmission structure according to another embodiment of the present application;

[0056] Figure 12 for Figure 11 Sectional view at CC.

[0057] icon:

[0058] 1-Drive belt; 11-Mounting protrusion; 12-Second limiting structure;

[0059] 2-Wire-picking assembly; 21-Fixed sleeve; 22-Rotating sleeve; 23-Screw; 231-Wire-locking groove; 232-Locking screw; 233-Limiting groove; 24-Scale sleeve; 25-First mounting base; 26-Limiting assembly; 261-Fixed sleeve; 262-Limiting screw;

[0060] 3-Drive assembly; 31-Operating component; 32-Response component; 33-First gear; 34-Second gear; 35-Second mounting base;

[0061] 4- Pay-off roller;

[0062] 5-Guide wheel;

[0063] 100 - Main roller; 110 - First limiting structure;

[0064] 200 - Cutting line. Detailed Implementation

[0065] The technical solutions of this application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0066] It should be noted that in the description of this application, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] It should be noted that, in the description of this application, the terms "connection" and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0068] A multi-wire slicing machine includes at least two parallel and spaced-apart main rollers 100 mounted on the machine body. The number of main rollers 100 can be two, three, four, or more. For example... Figure 1 As shown, when there are three or more main rollers 100, they are generally arranged in a ring. Currently, multi-wire slicing machines mostly use manual winding of the cutting wire 200 around the circumference of the main roller 100 for wiring. To limit the position of the cutting wire 200 on the main roller 100, multiple grooves are generally distributed sequentially along the axial direction on the circumference of the main roller 100, and the cutting wire 200 is wound around the main roller 100 along the grooves. With technological advancements, silicon wafers are becoming thinner, which requires the wire spacing on the main roller 100 to become smaller, leading to increasing difficulty and decreasing efficiency in manual winding.

[0069] Based on this, one embodiment of this application provides a wiring mechanism applied in the above-mentioned slicer, referring to... Figures 1 to 4 The wiring mechanism is used in a slicing machine, which includes at least two parallel and spaced main rollers 100 mounted on the machine body; the wiring mechanism includes a drive belt 1, a wire-picking assembly 2, and a drive assembly 3, wherein:

[0070] The transmission belt 1 is mounted on each main roller 100;

[0071] The wire-picking assembly 2 includes a fixed sleeve 21, a rotating sleeve 22, and a screw 23, which are coaxially mounted from the outside to the inside. The fixed sleeve 21 is fixedly mounted on the transmission belt 1, and the screw 23 is slidably mounted inside the fixed sleeve 21 along a first direction. The outer circumference of the first end of the screw 23 is provided with a first external thread, and the inner wall of the rotating sleeve 22 is provided with a first internal thread that mates with the first external thread. The inner wall of the fixed sleeve 21 is provided with a second internal thread, and the outer wall of the rotating sleeve 22 is provided with a second external thread that mates with the second internal thread. The central axis of the screw 23 is parallel to the central axis of each main roller 100, and the second end of the screw 23 is provided with a wire-locking structure for limiting the cutting wire 200.

[0072] The drive assembly 3 is connected to the rotating sleeve 22 and is configured to drive the rotating sleeve 22 to rotate relative to the fixed sleeve 21, thereby driving the screw 23 to step a preset distance relative to the transmission belt 1 in a first direction. The preset distance is equal to the distance between two adjacent grooves on the main roller 100. The first direction is the extension direction of the central axis of the screw 23.

[0073] The wiring principle of the wiring mechanism provided in this application is as follows: Before formal wiring, the transmission belt 1 is fitted onto each main roller 100 so that the transmission belt 1 and each main roller 100 can operate synchronously, and the end of the cutting wire 200 is fixed to the locking structure of the screw 23. After installation, wiring can begin. The rotation of each main roller 100 is controlled, which drives the transmission belt 1 and the wire-pulling assembly 2 on the transmission belt 1 to rotate around each main roller 100. During the rotation, the screw 23 winds the cutting wire 200 around the main roller 100. During the wiring process, each time the screw 23 rotates around each main roller 100 with the transmission belt 1, the drive assembly 3 drives the rotating sleeve 22 to rotate once relative to the fixed sleeve 21, thereby driving the screw 23 to step forward a preset distance relative to the transmission belt 1 in the first direction. This preset distance is the groove spacing between two adjacent grooves on the main roller 100. In this way, the screw 23 will drive the end of the cutting wire 200 to move by one groove spacing, so that the cutting wire 200 is sequentially laid in each groove of the main roller 100.

[0074] The wiring mechanism provided in this application replaces manual placement of the cutting wire 200 on the circumference of the main roller 100, improving wiring accuracy and efficiency. Furthermore, by adjusting the rotation angle of the rotating sleeve 22 relative to the fixed sleeve 21 each time, the preset step distance of the screw 23 relative to the transmission belt 1 can be adjusted, thereby adapting the main roller 100 to different wire spacing requirements, making it more flexible to use and more applicable.

[0075] In some embodiments, continue to refer to Figure 1The wiring mechanism also includes a feed roller 4 for providing the cut wire 200. The feed roller 4 is rotatably mounted on the machine body, and the cut wire 200 is wound around the feed roller 4. During the wiring process, the wire-feeding assembly 2 rotates around each main roller 100 under the drive of the transmission belt 1. At the same time, the feed roller 4 rotates to feed the wire, and the cut wire 200 is wound around the main roller 100 under the traction of the screw 23. In one embodiment, the feed roller 4 is a driving wheel, and the wiring mechanism also includes a drive motor for driving the feed roller 4 to rotate and feed the wire during the wiring process. In another embodiment, the feed roller 4 is a driven wheel, and the feed roller 4 rotates to feed the wire under the pull of the screw 23.

[0076] In some embodiments, to ensure that the cut wire 200 on the feed roller 4 is smoothly wound onto the respective main rollers 100, the wiring mechanism further includes guide rollers 5 for guiding the cut wire 200 to the main rollers 100. The number of guide rollers 5 can be one, two, or more. To prevent the cut wire 200 from falling off the guide rollers 5, the guide rollers 5 are preferably V-shaped rollers.

[0077] In some embodiments, the single-step accuracy of the screw 23 is greater than or equal to 0.01 mm, and the step stroke of the screw 23 along the first direction is greater than or equal to 10 mm. These parameter settings can meet the wiring requirements of most slicing machines and improve the adaptability of the wiring mechanism.

[0078] In some embodiments, the first internal thread and the second internal thread have opposite directions of rotation.

[0079] In some embodiments, the first internal thread and the second internal thread have the same direction of rotation but different pitches.

[0080] In this application, the thread-shifting assembly 2 includes two threaded pairs with opposite or the same helix direction but different pitches, forming a differential screw drive. The differential screw drive is characterized by consisting of two threaded pairs, causing a differential movement between the rotating sleeve and the screw. In the embodiment where the thread-shifting assembly 2 includes two threaded pairs with opposite helix directions, the displacement of the screw 23 relative to the fixed sleeve 21 along the first direction for each revolution of the rotating sleeve 22 is equal to the sum of the pitches of the two threaded pairs. In the embodiment where the thread-shifting assembly 2 includes two threaded pairs with the same helix direction but different pitches, the displacement of the screw 23 relative to the fixed sleeve 21 along the first direction for each revolution of the rotating sleeve 22 is equal to the difference in the pitches of the two threaded pairs. When the groove spacing on the main roller 100 is large, the embodiment where the thread-shifting assembly 2 includes two threaded pairs with opposite helix directions can be selected. This allows for an increase in the step distance of the screw 23 relative to the fixed sleeve 21 without increasing the pitch of the screw 23. When the groove spacing on the main roller 100 is small, an embodiment in which the wire-drawing assembly 2 contains two threaded pairs with the same direction of rotation but different pitches can be selected. This can reduce the step distance of the screw 23 relative to the fixed sleeve 21 without reducing the pitch of the screw 23, thereby improving the motion accuracy of the screw 23 and achieving high-precision micro-displacement.

[0081] The principle of differential screw drive is as follows: (Refer to...) Figure 3 For example, the internal thread of the rotating sleeve 22 engages with the external thread of the screw 23, with a right-hand rotation and a pitch of 1.5mm; the external thread of the rotating sleeve 22 engages with the internal thread of the fixed sleeve 21, with a right-hand rotation and a pitch of 2.5mm; during operation, when the rotating sleeve 22 is rotated clockwise one revolution, because the external thread of the rotating sleeve 22 engages with the internal thread of the fixed sleeve 21, the rotating sleeve 22 moves 2.5mm to the left while rotating; and because the internal thread of the rotating sleeve 22 engages with the external thread of the screw 23, and because the screw 23 can only move axially and cannot rotate, when the rotating sleeve 22 is rotated clockwise, the screw 23 moves 1.5mm to the right relative to the rotating sleeve 22. Thus, the distance the screw 23 moves to the left relative to the fixed sleeve 21 is 2.5 - 1.5 = 1mm.

[0082] In some embodiments, continue to refer to Figure 3 The guide wire assembly 2 also includes a graduated sleeve 24, which is coaxially fitted onto the outside of the fixed sleeve 21 and is fixedly connected to the rotating sleeve 22. The outer circumferential surface of the graduated sleeve 24 is provided with an annular scale, and correspondingly, the outer circumferential surface of the fixed sleeve 21 is provided with a main scale. The annular scale and the main scale, when combined, allow the reading of the movement distance of the screw 23 relative to the fixed sleeve 21. In this embodiment, the structure of the guide wire assembly 2 is similar to that of a conventional differential micrometer.

[0083] In some embodiments, the wire-picking assembly further includes a limiting component 26. A limiting groove 233 extending along a first direction is provided on the circumferential surface of the screw 23. The limiting component 26 is configured to cooperate with the limiting groove 233 to allow the screw 23 to slide along the first direction. Through the cooperation of the limiting component 26 and the limiting groove 233, the movement of the screw 23 is restricted to sliding only in the first direction, further improving wiring accuracy.

[0084] In some embodiments, the cable-shifting assembly 2 further includes a first mounting base 25 fixedly disposed on the transmission belt 1, and a fixing sleeve 21 fixedly disposed on the first mounting base 25. Based on the above structure, in this embodiment, the limiting assembly 26 includes a fixing sleeve 261 and a limiting screw 262. The fixing sleeve 261 is fixedly disposed at one end of the first mounting base 25. The first mounting base 25 is fixed to the mounting protrusion 11 on the outer surface of the transmission belt 1 by fasteners such as screws. The fixing sleeve 261 is fixedly fitted onto the fixing sleeve 21, and the second end of the screw 23 protrudes from the fixing sleeve 261. The circumferential surface of the screw 23 is provided with a limiting groove 233 extending in a first direction. A limiting screw 262 is screwed through the tube wall of the fixing sleeve 261. The end of the limiting screw 262 abuts against the bottom of the limiting groove 233, so that the screw 23 can only reciprocate linearly in the first direction and cannot rotate.

[0085] As an optional embodiment, the fixed sleeve 261 and the first mounting base 25 can be fixedly connected by means of integral molding, welding, screwing, etc.

[0086] As an optional embodiment, the fixing sleeve 261 is fixedly fitted onto the outside of the fixing sleeve 21 using an interference fit, and the two can also be fixed with screws. Exemplarily, the end of the limiting screw 262 passes through the fixing sleeve 261 and the fixing sleeve 21 in sequence, and abuts against the bottom of the limiting groove 233; in this embodiment, the limiting screw 262, in addition to limiting the movement trajectory of the screw 23 relative to the fixing sleeve 21, also limits the relative position of the fixing sleeve 261 and the fixing sleeve 21.

[0087] Reference Figure 5 and Figure 6In some embodiments, the wire-locking structure includes a wire-locking groove 231 or a wire-locking hole, and the end of the cutting wire 200 is fixed in the wire-locking groove 231 or the wire-locking hole. When the wire-locking structure includes a wire-locking groove, the wire-locking groove is a V-shaped groove to prevent the cutting wire 200 from coming out of the wire-locking groove. In some embodiments, the wire-locking structure also includes a locking screw 232 screwed to the screw 23, and the end of the cutting wire 200 is clamped between the locking screw 232 and the screw 23. When the wire locking structure includes both a wire locking groove (or wire locking hole) and a locking screw 232, when it is necessary to lock the end of the cut wire 200, the end of the cut wire 200 is passed through the wire locking groove perpendicular to the paper and then wrapped in the opposite direction around the screw 23 and the locking screw 232. After that, the locking screw 232 is tightened to clamp the end of the wire between the screw head of the locking screw 232 and the screw 23. When it is necessary to release the cut wire 200, the end of the cut wire 200 can be untied from the screw 23 simply by loosening the locking screw 232.

[0088] In some embodiments, the transmission belt 1 has a segmented structure; for example, the transmission belt 1 is composed of two, three, or more belt segments spliced ​​end to end, and adjacent belt segments are detachably connected by fasteners such as screws. By setting the transmission belt 1 to a segmented structure, it is convenient to mount the transmission belt 1 onto each main roller 100.

[0089] In some embodiments, the outer surface of the transmission belt 1 is provided with a mounting protrusion 11, and the cable puller assembly 2 is disposed on the mounting protrusion 11. The mounting protrusion 11 provides a mounting surface for the cable puller assembly 2, facilitating the installation of the cable puller assembly 2.

[0090] In some embodiments, each main roller 100 has a first limiting structure 110 on its circumferential surface that engages with the transmission belt 1; and / or, the inner surface of the transmission belt 1 has a second limiting structure 12 that engages with each main roller 100. By configuring the main roller 100 and the transmission belt 1 as an engaging connection, the relative position of the main roller 100 and the transmission belt 1 can be limited, preventing the transmission belt 1 from slipping relative to the main roller 100. In one embodiment, referring to… Figure 7 The first limiting structure 110 is a groove, and the transmission belt 1 is integrally embedded within the first limiting structure 110 in the width direction. In another embodiment, referring to... Figure 8 In the first limiting structure 110 and the second limiting structure 12, one is a limiting groove and the other is a limiting protrusion that can be embedded in the limiting groove.

[0091] Optionally, the transmission belt 1 can be one of a flat belt, a V-belt, or a synchronous belt. The characteristics of each type of transmission belt are as follows: a flat belt is a flat strip-shaped transmission belt with a simple structure and good flexibility; a V-belt has a trapezoidal cross-section, which can generate greater friction under the same tension than a flat belt; a synchronous belt has teeth with equal spacing on its inner surface, which mesh with the teeth on the main roller 100 for transmission, resulting in a more precise transmission ratio and less tendency to move relative to the main roller 100.

[0092] In some embodiments, refer to Figure 4 The drive assembly 3 includes an operating component 31 and a response component 32. The operating component 31 is mounted on the machine body, and the response component 32 is connected to the rotating sleeve 22. The operating component 31 is configured to actuate the response component 32 once each time the wire-pulling assembly 2 rotates around each main roller 100 with the transmission belt 1, so as to drive the rotating sleeve 22 to rotate around its own central axis by a set angle, thereby driving the screw 23 to advance a preset distance relative to the transmission belt 1 in the first direction.

[0093] During the wiring process, whenever the wire-pulling assembly 2 rotates once around each main roller 100 with the transmission belt 1, the operating component 31 actuates the response component 32 once. The response component 32 transmits power to the screw 23 through the rotating sleeve 22, causing the screw 23 to drive the end of the cutting wire 200 to advance one groove spacing relative to the transmission belt 1 in the first direction, thereby allowing the cutting wire 200 to be sequentially laid in each groove of the main roller 100.

[0094] In this embodiment, the operating component 31 is located between two adjacent main rollers 100 and on the outside of the transmission belt 1. The portion of the transmission belt 1 that contacts the main rollers 100 is a curved section, while the portion of the transmission belt 1 between the two adjacent main rollers 100 is a straight section. By placing the operating component 31 between the two adjacent main rollers 100, the operating component 31 actuates the response component 32, which is in the straight section, thus avoiding the transmission error between the operating component 31 and the response component 32 caused by the bending deformation of the transmission belt 1.

[0095] As an optional embodiment, the response component 32 is a gear that is connected to the rotating sleeve 22 for transmission, and the operation component 31 is a rack, lever, or gear that is fixedly mounted on the machine body.

[0096] Alternatively, the response component 32 is a friction wheel that is driven to the rotating sleeve 22, and the operating component 31 has a friction surface for contacting the friction wheel;

[0097] Alternatively, the responding component 32 is an outer surface with frictional force on the outer periphery of the rotating sleeve 22, and the operating component 31 has a frictional surface for contacting the outer surface.

[0098] In some embodiments, refer to Figure 3 and Figure 4The responding component 32 is fixedly mounted on the rotating sleeve 22, and the two rotate and move axially synchronously. In embodiments where the wiring mechanism does not include the graduated sleeve 24, when the responding component 32 is a gear or friction wheel, it is fixedly mounted on the rotating sleeve 22. Furthermore, in embodiments where the wiring mechanism includes the graduated sleeve 24, the responding component 32 can also be the outer surface of the graduated sleeve 24 that has friction. Figure 4 As shown, when the responding component 32 passes through and contacts the operating component 31 under the drive of the transmission belt 1, the responding component 32, blocked by the operating component 31, drives the rotating sleeve 22 to rotate relative to the fixed sleeve 21 in the opposite direction of its forward direction. In the embodiment where the responding component 32 is a gear, the responding component 32 and the operating component 31 drive the rotating sleeve 22 to rotate through meshing transmission; in the embodiment where the responding component 32 is a friction wheel or friction surface, the responding component 32 and the operating component 31 drive the rotating sleeve 22 to rotate through friction transmission. Compared with the two transmission methods, the meshing transmission method has higher transmission accuracy and is less prone to slippage.

[0099] In the embodiment where the response component 32 is fixedly mounted on the rotating sleeve 22, the rotating sleeve 22 rotates and moves relative to the fixed sleeve 21, causing the response component 32 to move synchronously. Since the operating component 31 is fixedly mounted on the machine body, the response component 32 will simultaneously rotate and move axially (i.e., in the first direction) relative to the operating component 31 when the operating component 31 is turned. To prevent the response component 32 from falling out of the turning range of the operating component 31 during axial movement, the length of the operating component 31 along the first direction is greater than the total stroke of the rotating sleeve 22 along the first direction.

[0100] In some embodiments, refer to Figures 9 to 12 The drive assembly 3 also includes a speed-changing transmission structure that is connected between the rotating sleeve 22 and the response component 32. Common speed-changing transmission structures include gear transmission mechanisms, belt transmission mechanisms, and chain transmission mechanisms. Among them, gear transmission mechanisms have advantages such as high transmission efficiency, accurate transmission ratio, compact structure, and small size.

[0101] In some embodiments, refer to Figure 9 and Figure 10The response component 32 is a gear, and the speed transmission structure includes a first gear 33 meshing with the response component 32. The first gear 33 is fixedly connected to the rotating sleeve 22, and the ratio of the rotational speed of the response component 32 to the rotational speed of the first gear 33 is greater than 1. In the above structure, for embodiments excluding the graduated sleeve 24, the first gear 33 can be fixedly mounted on the rotating sleeve 22; for embodiments including the graduated sleeve 24, the first gear 33 can be fixedly mounted on the graduated sleeve 24. Further, the speed transmission structure also includes a second mounting base 35 and a drive shaft rotatably mounted on the second mounting base 35, and the response component 32 is fixed on the drive shaft. It should be noted that the rotating sleeve 22 will drive the first gear 33 to move synchronously while rotating and moving relative to the fixed sleeve 21. In order to prevent the first gear 33 from disengaging from the response component 32 during axial movement, the length of the response component 32 along the first direction (i.e., the axial length of the response component 32) is greater than the total stroke of the rotating sleeve 22 along the first direction.

[0102] In other embodiments, reference is made to Figure 11 and Figure 12 The response component 32 is a friction wheel or gear. The transmission structure includes a first gear 33 and a second gear 34 meshing with each other. The first gear 33 is fixedly connected to the rotating sleeve 22, and the second gear 34 is driven by the response component 32. The ratio of the rotational speed of the second gear 34 to the rotational speed of the first gear 33 is greater than 1. Based on the above structure, in order to realize the drive connection between the second gear 34 and the response component 32, the transmission structure also includes a second mounting base 35 and a drive shaft rotatably mounted on the second mounting base 35. The response component 32 and the second gear 34 are coaxially fixed on the drive shaft. It should be noted that the rotating sleeve 22 drives the first gear 33 to move synchronously while rotating and moving relative to the fixed sleeve 21. In order to prevent the first gear 33 from disengaging from the second gear 34 during axial movement, the length of the second gear 34 along the first direction is greater than the total stroke of the rotating sleeve 22 along the first direction.

[0103] Of course, the transmission structure may also include three, four or more gears. For example, the transmission structure includes a second gear 34, a third gear, and a first gear 33 meshing sequentially. The first gear 33 is fixedly connected to the rotating sleeve 22, the second gear 34 is connected to the responsive component 32, and the third gear is connected between the first gear 33 and the second gear 34. The ratio of the rotational speed of the second gear 34 to the rotational speed of the third gear is greater than 1, and the ratio of the rotational speed of the third gear to the rotational speed of the first gear 33 is greater than 1.

[0104] In addition to embodiments where the drive assembly 3 includes an operating component 31 and a responding component 32, in other embodiments, the drive assembly 3 includes a rotary drive source disposed on the transmission belt 1, the power output end of which is connected to the rotating sleeve 22. Exemplarily, the rotary drive source is a small motor, the output shaft of which is connected to the rotating sleeve 22 via a coupling; each time the screw 23 rotates once around each main roller 100 with the transmission belt 1, the rotary drive source drives the rotating sleeve 22 to rotate once relative to the fixed sleeve 21, thereby causing the screw 23 to advance a preset distance relative to the transmission belt 1 along a first direction.

[0105] A second aspect of this application provides a slicing machine, which includes a machine body, at least two parallel and spaced-apart main rollers 100 disposed on the machine body, and a wiring mechanism described in any of the preceding embodiments. The slicing machine provided by this application has at least all the technical effects of the wiring mechanism described in any of the preceding embodiments, and will not be repeated here.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A wiring mechanism, characterized in that, The wiring mechanism is used in a slicing machine, which includes at least two parallel and spaced main rollers disposed on the machine body; the wiring mechanism includes a transmission belt, a wire-picking assembly, and a drive assembly, wherein: The drive belt is fitted onto each of the main rollers; The wire-cutting assembly includes a fixed sleeve, a rotating sleeve, and a screw, which are coaxially mounted from the outside to the inside. The fixed sleeve is fixedly mounted on the transmission belt, and the screw is slidably mounted inside the fixed sleeve along a first direction. The outer circumference of the first end of the screw is provided with a first external thread, and the inner wall of the rotating sleeve is provided with a first internal thread that mates with the first external thread. The inner wall of the fixed sleeve is provided with a second internal thread, and the outer wall of the rotating sleeve is provided with a second external thread that mates with the second internal thread. The central axis of the screw is parallel to the central axis of each of the main rollers, and the second end of the screw is provided with a wire-locking structure for defining the cutting wire. The drive assembly is connected to the rotating sleeve and is configured to drive the rotating sleeve to rotate relative to the fixed sleeve, thereby causing the screw to advance a preset distance relative to the transmission belt along the first direction. The preset distance is equal to the distance between two adjacent grooves on the main roller, and the first direction is the extension direction of the central axis of the screw.

2. The wiring mechanism as described in claim 1, characterized in that, The first internal thread and the second internal thread have opposite directions of rotation; Alternatively, the first internal thread and the second internal thread may have the same direction of rotation but different pitches.

3. The wiring mechanism as described in claim 1, characterized in that, The single-step accuracy of the screw is greater than or equal to 0.01 mm, and the step distance of the screw along the first direction is greater than or equal to 10 mm.

4. The wiring mechanism as described in claim 1, characterized in that, The dialing assembly also includes a limiting component; The screw has a limiting groove extending along the first direction on its circumferential surface, and the limiting component is configured to cooperate with the limiting groove to allow the screw to slide along the first direction.

5. The wiring mechanism as described in claim 1, characterized in that, The drive assembly includes an operating component and a responding component. The operating component is disposed on the machine body, and the responding component is connected to the rotating sleeve. The operating component is configured to actuate the response component once each time the wire-shifting assembly rotates around each of the main rollers with the transmission belt, thereby causing the rotating sleeve to rotate relative to the fixed sleeve by a set angle, and thus causing the screw to advance a preset distance relative to the transmission belt along the first direction.

6. The wiring mechanism as described in claim 5, characterized in that, The response component is a gear connected to the rotating sleeve, and the operating component is a rack, lever, or gear fixedly mounted on the machine body. Alternatively, the response component is a friction wheel that is driven to the rotating sleeve, and the operating component has a friction surface for contacting the friction wheel; Alternatively, the responding component is an outer surface with frictional force on the outer periphery of the rotating sleeve, and the operating component has a frictional surface for contacting the outer surface.

7. The wiring mechanism as described in claim 5, characterized in that, The drive assembly also includes a speed-changing transmission structure that is connected between the rotating sleeve and the response component.

8. The wiring mechanism as described in claim 7, characterized in that, The response component is a gear, and the speed transmission structure includes a first gear meshing with the response component. The first gear is fixedly connected to the rotating sleeve, and the ratio of the rotational speed of the response component to the rotational speed of the first gear is greater than 1. Alternatively, the speed transmission structure includes a first gear and a second gear that mesh with each other, the first gear being fixedly connected to the rotating sleeve, the second gear being drivenly connected to the response component, and the ratio of the rotational speed of the second gear to the rotational speed of the first gear being greater than 1; Alternatively, the transmission structure includes a second gear, a third gear, and a first gear meshing sequentially. The first gear is fixedly connected to the rotating sleeve, the second gear is connected to the response component, and the third gear is connected between the first gear and the second gear. The ratio of the rotational speed of the second gear to the rotational speed of the third gear is greater than 1, and the ratio of the rotational speed of the third gear to the rotational speed of the first gear is greater than 1.

9. The wiring mechanism as described in claim 1, characterized in that, The wire locking structure includes a wire locking groove or a wire locking hole, and the end of the cutting wire is fixed in the wire locking groove or the wire locking hole; And / or, the locking structure includes a locking screw screwed to the second end of the screw rod, and the end of the cutting wire is clamped between the locking screw and the screw rod.

10. The wiring mechanism as described in claim 1, characterized in that, The transmission belt has a segmented structure; And / or, the outer surface of the transmission belt is provided with a mounting protrusion, and the wire-pulling assembly is disposed on the mounting protrusion; And / or, each of the main rollers is provided with a first limiting structure on its circumferential surface that is fitted and connected to the transmission belt; And / or, the inner surface of the transmission belt is provided with a second limiting structure that is fitted and connected to each of the main rollers.

11. The wiring mechanism as described in any one of claims 1 to 10, characterized in that, The wiring mechanism further includes a feed roller for providing the cut wire and / or a guide roller for guiding the cut wire to the main roller.

12. A slicer, characterized in that, The slicer includes a body, at least two parallel and spaced main rollers disposed on the body, and a wiring mechanism as described in any one of claims 1 to 11.

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