A bevel gear drive tool holder

Abstract

The utility model discloses a kind of oblique gear transmission's tool holder, belong to pneumatic tool bit tool holder technical field, including backplate, lifting mechanism is installed on the backplate, tool holder main body is slidably connected along vertical direction on the backplate, lifting mechanism drives tool holder main body to slide up and down at backplate, gear transmission mechanism is installed on the tool holder main body, pneumatic tool is installed in the gear transmission mechanism, gear transmission mechanism is drivingly connected with the punching mechanism installed on tool holder main body, the punching mechanism is connected with vacuum suction device, further including inkjet line drawing device and limiting mechanism installed on the tool holder main body, the utility model integrates cutting, punching, negative pressure waste removal, inkjet positioning and other multi-process, without additional equipment, reduce space occupancy and improve processing continuity;Oblique gear transmission and ball screw lifting guarantee high precision, low noise operation, negative pressure system efficiently collects waste material, and the technical effect that general-purpose and automation adaptability are strong.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic tool head and tool holder technology, and particularly relates to a tool holder with helical gear transmission. Background Technology

[0002] Pneumatic cutter heads and holders are commonly used equipment in industrial processing (especially shoe material processing). They primarily use pneumatic pressure to drive the cutter head to perform cutting, engraving, and other operations. During shoe material processing, the operation of these cutter heads generates a large amount of waste (such as fabric scraps and leather offcuts). The disposal of this waste directly affects processing efficiency and environmental cleanliness. Currently, pneumatic cutter heads and holders on the market have the following drawbacks: Insufficient waste disposal capacity: Some tool holders are not equipped with dedicated waste disposal devices, and waste needs to be cleaned manually, which is inefficient and labor-intensive; other tool holders only use air blowing devices, which can only blow the waste away from the processing area and cannot achieve effective collection, resulting in waste being scattered all over the work site, contaminating the equipment and workpiece surfaces, and may also affect the accuracy of subsequent processing. The process is highly decentralized: most existing equipment can only achieve simple fixing or single lifting functions of pneumatic knives. Processes such as drilling, waste cleaning, and positioning marking require the cooperation of additional equipment, which not only occupies a lot of production space, but also causes the processing flow to be interrupted and has poor continuity, making it difficult to meet the high-efficiency requirements of mass processing of shoe materials. Therefore, developing a pneumatic cutter head and cutter holder that integrates multiple processes and has a high-efficiency waste adsorption function is of great significance for improving the efficiency of shoe material processing and improving the processing environment. Utility Model Content

[0003] To address the problems of existing technologies, this utility model provides a helical gear transmission tool holder that integrates multiple processes such as cutting, drilling, negative pressure waste removal, and inkjet positioning. It requires no additional equipment, reducing space occupation and improving processing continuity. The helical gear transmission and ball screw lifting ensure high-precision, low-noise operation, while the buffer and guiding structure further enhances processing stability. The negative pressure system efficiently collects waste, and the collection bin is easy to disassemble and clean, improving the processing environment. Anti-fall springs and gear covers enhance safety protection. It is compatible with tools of different sizes and can be integrated into automated systems, offering advantages in versatility and automation adaptability. This invention solves two problems in existing technologies: first, inefficient waste handling, where traditional equipment lacks a dedicated collection device or relies solely on air blowing, leading to waste scattering, contaminating equipment, affecting accuracy, and requiring manual cleaning; and second, fragmented processes, only capable of single functions, with drilling and marking requiring additional equipment, occupying space, and interrupting the processing flow, making it difficult to meet the needs of high-efficiency batch processing of shoe materials.

[0004] This utility model is implemented as follows: a helical gear driven tool holder includes a back plate, on which a lifting mechanism is mounted. A tool holder body is slidably connected to the back plate along its vertical edge. The lifting mechanism drives the tool holder body to slide up and down at the back plate. A gear transmission mechanism is mounted on the tool holder body, and a pneumatic knife is installed within the gear transmission mechanism. The gear transmission mechanism is driven by a drilling mechanism mounted on the tool holder body. The drilling mechanism is connected to a vacuum suction device. It also includes an inkjet marking device and a limiting mechanism mounted on the tool holder body. The drilling mechanism includes a drilling bearing rotatably connected to the tool holder body, which is driven by the gear transmission mechanism. A hollow negative pressure drilling rod is slidably connected within the drilling bearing. A negative pressure... A punching cylinder is included, with the upper end of the negative pressure punching rod connected to the movable end of the negative pressure punching cylinder. A puncher is installed at the lower end of the negative pressure punching rod via a conversion connector, and the negative pressure punching rod is connected to the puncher. The vacuum suction device includes a negative pressure suction housing, inside which a generator support plate and a negative pressure fixing plate are installed. The negative pressure fixing plate is located below the generator support plate, and a material collection bin is threaded onto the negative pressure fixing plate. A vacuum generator is installed on the generator support plate, with its inlet connected to the outlet of an air compressor via an air nozzle. The outlet of the vacuum generator is located below the vacuum generator and faces the material collection bin. The suction port of the vacuum generator is connected to the negative pressure punching rod via a vacuum tube, which is a flexible tube.

[0005] In a preferred embodiment of this invention, the gear transmission mechanism includes a transmission bearing sleeve rotatably connected to the blade holder body. The transmission bearing sleeve has a blade mounting groove for holding the pneumatic blade. A blade locking nut is threaded onto the transmission bearing sleeve, and the pneumatic blade is fixed within the transmission bearing sleeve by tightening the blade locking nut. A positioning auxiliary rod is also installed on the blade holder body, which limits the position of the pneumatic blade's handle. The side wall of the transmission bearing sleeve also has an identification groove and a positioning pin groove. The side wall of the main body of the tool holder has a limiter mounting groove for mounting a position sensor. A side cover plate is fixedly connected to the outside of the side wall of the main body of the tool holder. A main transmission gear is fixedly connected to the transmission bearing sleeve. The main transmission gear meshes with a drive gear, an upper transmission pinion, and a lower transmission pinion. A gear motor support is fixedly connected to the main body of the tool holder. A gear motor body is fixedly connected to the gear motor support. The output shaft of the gear motor body is fixedly connected to the drive gear. The upper transmission pinion and the lower transmission pinion are respectively fixedly connected to a perforated bearing.

[0006] This setup securely fixes different pneumatic blade models, preventing blade head displacement during high-speed rotation cutting. The positioning auxiliary rod limits the pneumatic blade handle, further enhancing blade head installation stability and ensuring precise cutting trajectories. The identification groove on the side wall of the transmission bearing sleeve, in conjunction with a position sensor, monitors the blade head rotation angle in real time, facilitating precise cutting angle control. The positioning pin groove matches the blade head positioning pin of the limiting mechanism, locking the transmission bearing sleeve in non-cutting states to prevent accidental blade head rotation. The gear transmission mechanism simultaneously drives the pneumatic blade and the drilling mechanism, enabling synchronized cutting and drilling operations, reducing equipment downtime and improving processing continuity. The helical gear structure provides a larger meshing surface, smoother transmission, reduced operating noise, less gear wear, and extended equipment lifespan.

[0007] In a preferred embodiment of this utility model, a cylinder fixing plate is fixedly connected to the main body of the knife holder. One side of the cylinder fixing plate is fixedly connected to a negative pressure punching cylinder, and a punching support is fixedly connected to the movable end of the negative pressure punching cylinder. The upper end of the negative pressure punching rod is rotatably connected to the punching support. A negative pressure spring is sleeved on the negative pressure punching rod. The two ends of the negative pressure spring abut against the punching support and the punching bearing, respectively. The other side of the cylinder fixing plate is fixedly connected to the negative pressure suction housing.

[0008] This setup utilizes a negative pressure punching rod in conjunction with a vacuum suction device. After punching, the punch directly absorbs waste materials (leftovers from fabric, leather, and other processing materials) using negative pressure, preventing waste accumulation from affecting processing accuracy and reducing manual cleaning steps. The negative pressure punching rod features a hollow design, with the lower end connected to the punch. During punching, it directly absorbs the waste generated, preventing it from scattering and contaminating the equipment or workpiece surface, reducing subsequent cleaning processes, and improving the cleanliness of the working environment. The vacuum generator is connected to the negative pressure punching rod via a vacuum tube, using the pressure difference to generate strong suction force, quickly drawing the waste generated during punching into the collection bin. This prevents waste accumulation in the punching area from affecting subsequent operations and improves processing continuity. The collection bin is threadedly connected to the negative pressure fixing plate, facilitating quick disassembly and cleaning, and reducing maintenance time.

[0009] During the drilling process, the negative pressure spring and guide rod spring provide buffering force, which, together with the linear bearing guiding the drilling guide rod, reduces vibration and offset during drilling and ensures drilling accuracy. At the same time, the positioning auxiliary rod and limiting mechanism can limit the drilling-related components, further improving stability.

[0010] In a preferred embodiment of this utility model, a drilling guide rod is fixedly connected to the drilling support base, a linear bearing is fixedly connected to the tool holder body, the drilling guide rod is slidably connected within the linear bearing, a guide rod lower seat is connected to the lower end of the drilling guide rod, the lower end of the drilling guide rod is slidably connected within the guide rod lower seat, a guide rod spring is fixedly connected to the drilling guide rod, the end of the guide rod spring away from the drilling guide rod abuts against the upper end face of the guide rod lower seat, a through hole is provided at the bottom of the guide rod lower seat, and the drill is coaxially arranged with the through hole and can be inserted into the through hole.

[0011] With this design, the punching guide rod slides within the linear bearing, providing precise guidance for the lifting and lowering of the punching support, preventing the negative pressure punching rod from shifting during punching, and ensuring accurate punching position. The sliding fit between the guide rod lower seat and the punching guide rod further enhances the guiding effect, and the perforation of the guide rod lower seat is coaxial with the punch, which can limit the lower end of the punch. The guide rod spring abuts between the guide rod lower seat and the punching guide rod, providing secondary buffering when the punching guide rod descends, reducing the impact of punching vibration on punching accuracy, and assisting the punching guide rod in resetting, ensuring consistency in each punching action, and adapting to the precision requirements of mass production of shoe materials.

[0012] As a preferred embodiment of the present invention, the inkjet drawing device includes a brush holder and a brush cylinder mounted on the brush holder. A drawing guide shaft is fixedly connected to the brush holder, and a connecting block is slidably connected to the drawing guide shaft. The connecting block is fixedly connected to the movable end of the brush cylinder, and an integrated ink cartridge is fixedly connected to the connecting block.

[0013] With this setup, the inkjet drawing device drives the integrated ink cartridge to rise and fall along the drawing guide shaft via the pen cylinder. This allows for pre-drawing and positioning of the material before processing, ensuring the accuracy of the pneumatic knife cutting and drilling positions, reducing manual alignment errors, and improving processing precision.

[0014] As a preferred embodiment of this utility model, a guide auxiliary rod extending vertically is fixedly connected to the lower seat of the guide rod, and the guide auxiliary rod is slidably connected inside the tool holder body.

[0015] This setting restricts the movement direction of the guide rod lower seat, preventing horizontal deviation or tilting during drilling and further enhancing the overall guiding stability of the drilling mechanism.

[0016] As a preferred embodiment of this utility model, the negative pressure suction housing is provided with several through holes for venting, and the lower end of the negative pressure punching rod is threadedly connected to a connector locking nut for locking the conversion connector. Different sizes of punches can be installed through the conversion connector.

[0017] With this setup, the exhaust vent on the negative pressure suction housing can balance the internal air pressure, ensuring the stability of the adsorption efficiency; different sizes of punches can be installed through the conversion connector, and with the precise transmission of the helical gear in the gear transmission mechanism, the punching position can be precisely controlled, meeting the punching requirements of workpieces of different specifications, and it has strong versatility.

[0018] In a preferred embodiment of this utility model, the limiting mechanism includes a positioning pin fixing block fixed on the tool holder body, a tool head positioning pin installed on the positioning pin fixing block, a positioning pin spring sleeved on the tool head positioning pin, a positioning pin hole opened on the tool holder body, the positioning pin spring installed in the positioning pin hole, the tool head positioning pin slidingly in the positioning pin hole, and the tool head positioning pin being slidable to the positioning pin groove to limit the rotation of the transmission large bearing sleeve.

[0019] This design allows the positioning pin spring to push the cutter head positioning pin into the positioning pin groove of the transmission bearing sleeve. This locks the transmission bearing sleeve when the equipment is stopped or the cutter head is replaced, preventing the cutter head from shaking or falling off due to accidental rotation caused by external force, thus improving equipment operation safety. When the equipment needs to be started, external driving force can push the cutter head positioning pin to compress the positioning pin spring and disengage from the positioning pin groove, unlocking the transmission bearing sleeve. This convenient operation requires no additional tools, improves equipment start-up and shutdown efficiency, and adapts to the rhythm of continuous industrial production.

[0020] As a preferred embodiment of this utility model, a gear cover plate is fixedly connected to the tool holder body for covering the main transmission gear, the upper transmission pinion, and the lower transmission pinion. The main transmission gear, the upper transmission pinion, and the lower transmission pinion are all located between the tool holder body and the gear cover plate. The main transmission gear, the drive gear, the upper transmission pinion, and the lower transmission pinion are all helical gear structures.

[0021] With this design, the gear transmission mechanism adopts a helical gear meshing design. Compared with spur gear transmission, helical gears have a larger meshing surface, smoother transmission, reduced operating noise, reduced gear wear, and extended service life.

[0022] In a preferred embodiment of this invention, the lifting mechanism includes a ball screw assembly mounted on the tool holder body and a screw motor support fixed to the back plate. The nut of the ball screw assembly is fixed to the tool holder body, and the screw of the ball screw assembly is rotatably connected to the screw motor support via a bearing. A coupling is fixed to the upper end of the ball screw assembly, and a screw motor body is fixed to the screw motor support. The output shaft of the screw motor body is fixed to the coupling. The mechanism also includes an anti-fall spring fixed to the screw motor support, with one end of the anti-fall spring away from the screw motor support fixed to the tool holder body.

[0023] This design utilizes a lifting mechanism composed of a ball screw assembly and a screw motor. Guided by a linear guide rail, it achieves high-precision and stable vertical lifting of the tool holder body, ensuring the accuracy of the pneumatic tool's position during height adjustment and meeting the processing needs under different working conditions. The anti-fall spring provides tensile support to the tool holder body in the event of a malfunction in the screw motor body or the ball screw assembly, preventing the tool holder body from suddenly falling and causing equipment damage or safety accidents, thus improving the operational safety of the device.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: The vacuum material suction device is integrated with the drilling mechanism and gear transmission mechanism on the main body of the tool holder. The structure is compact and does not occupy a lot of extra space. It works in coordination with the lifting and rotating actions of the overall equipment to improve the integrated operation capability of the device. The device integrates electric and pneumatic components such as the main body of the lead screw motor (lifting drive), the main body of the gear motor (rotation drive), the position sensor (angle monitoring), and the vacuum generator (negative pressure control). Through the control system, it can realize the automated linkage of lifting height, rotation angle, drilling timing, and line marking positioning, laying the foundation for subsequent integration into the production line automation system (such as PLC control), reducing manual operation and improving batch processing efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the connection structure between the vacuum suction device and the punching mechanism provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the installation structure of the lifting mechanism provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the vacuum suction device provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the structure of the inkjet drawing device provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the limiting mechanism provided in an embodiment of the present utility model.

[0026] In the diagram: 1. Tool holder body; 2. Gear cover plate; 3. Drilling mechanism; 301. Drilling support base; 302. Negative pressure drilling rod; 303. Negative pressure spring; 304. Drilling bearing; 305. Connector lock nut; 306. Adaptor connector; 307. Guide rod lower seat; 308. Guide auxiliary rod; 309. Guide rod spring; 310. Drilling guide rod; 311. Linear bearing; 312. Drill; 4. Cylinder fixing plate; 5. Vacuum suction device; 51. Vacuum tube; 52. Air nozzle; 53. Vacuum generator; 54. Generator support plate; 55. Negative pressure fixing plate; 56. Collection bin; 57. Negative pressure suction housing; 6. Side cover plate; 7. Inkjet drawing device; 71. Drawing pen 72. Cylinder; 73. Brush holder; 74. Drawing guide shaft; 75. Connecting block; 76. Integrated ink cartridge; 8. Gear transmission mechanism; 87. Transmission large bearing sleeve; 88. Transmission main gear; 89. Drive gear; 80. Upper transmission pinion; 81. Lower transmission pinion; 82. Gear motor support base; 83. Gear motor body; 84. Cutter head locking nut; 9. Back plate; 10. Positioning auxiliary rod; 11. Lifting mechanism; 111. Lead screw motor body; 112. Coupling; 113. Lead screw motor support base; 114. Ball screw pair; 115. Anti-fall spring; 12. Limiting mechanism; 121. Cutter head positioning pin; 122. Positioning pin fixing block; 123. Positioning pin spring. Detailed Implementation

[0027] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0028] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] refer to Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a helical gear driven tool holder, including a back plate 9, a lifting mechanism 11 mounted on the back plate 9, a tool holder body 1 slidably connected to the back plate 9 along its vertical direction, the lifting mechanism 11 driving the tool holder body 1 to slide up and down at the back plate 9, a gear transmission mechanism 8 mounted on the tool holder body 1, a pneumatic knife mounted in the gear transmission mechanism 8, a drilling mechanism 3 mounted on the tool holder body 1 connected to the gear transmission mechanism 8, a vacuum suction device 5 connected to the drilling mechanism 3, and also includes an inkjet drawing device 7 and a limiting mechanism 12 mounted on the tool holder body 1; the drilling mechanism 3 includes a drilling bearing 304 rotatably connected to the tool holder body 1, the drilling bearing 304 being connected to the gear transmission mechanism 8, a hollow negative pressure drilling rod 302 slidably connected inside the drilling bearing 304, and a negative pressure drilling cylinder mounted on the tool holder body 1. The upper end of the punching rod 302 is connected to the movable end of the negative pressure punching cylinder. The lower end of the negative pressure punching rod 302 is equipped with a puncher 312 through a conversion connector 306. The negative pressure punching rod 302 is connected to the puncher 312. The vacuum suction device 5 includes a negative pressure suction housing 57. A generator support plate 54 and a negative pressure fixing plate 55 are installed inside the negative pressure suction housing 57. The negative pressure fixing plate 55 is located below the generator support plate 54. A collection bin 56 is threaded onto the negative pressure fixing plate 55. A vacuum generator 53 is installed on the generator support plate 54. The air inlet of the vacuum generator 53 is connected to the air outlet of the air compressor through an air nozzle 52. The air outlet of the vacuum generator 53 is located below the vacuum generator 53 and faces the collection bin 56. The air inlet of the vacuum generator 53 is connected to the negative pressure punching rod 302 through a vacuum tube 51. The vacuum tube 51 is a flexible tube.

[0030] Specifically, the gear transmission mechanism 8 includes a transmission bearing sleeve 81 rotatably connected to the tool holder body 1. The transmission bearing sleeve 81 has a tool head mounting groove for holding the pneumatic knife. A tool head locking nut 88 is threaded onto the transmission bearing sleeve 81. By tightening the tool head locking nut 88, the pneumatic knife is fixed inside the transmission bearing sleeve 81. A positioning auxiliary rod 10 is also installed on the tool holder body 1. The positioning auxiliary rod 10 limits the position of the pneumatic knife handle. The side wall of the transmission bearing sleeve 81 also has an identification groove and a positioning pin groove. The side wall of the tool holder body 1 has... A limiter mounting slot for mounting a position sensor; a side cover plate 6 is fixedly connected to the outside of the side wall of the tool holder body 1; a transmission main gear 82 is fixedly connected to the transmission large bearing sleeve 81, the transmission main gear 82 meshes with a drive gear 83, an upper transmission pinion 84 and a lower transmission pinion 85; a gear motor support seat 86 is fixedly connected to the tool holder body 1, a gear motor body 87 is fixedly connected to the gear motor support seat 86, the output shaft of the gear motor body 87 is fixedly connected to the drive gear 83, and the upper transmission pinion 84 and the lower transmission pinion 85 are respectively fixedly connected to a perforated bearing 304.

[0031] The above solution can securely fix pneumatic knives of different models, preventing the blade head from shifting during high-speed rotation cutting. The positioning auxiliary rod 10 limits the pneumatic knife handle, further improving the stability of the blade head installation and ensuring accurate cutting trajectory. The identification groove on the side wall of the transmission bearing sleeve 81, in conjunction with the position sensor, can monitor the blade head rotation angle in real time, facilitating precise control of the cutting angle. The positioning pin groove is adapted to the blade head positioning pin 121 of the limiting mechanism 12, which can lock the transmission bearing sleeve 81 in the non-cutting state to prevent the blade head from rotating accidentally. The gear transmission mechanism 8 simultaneously drives the pneumatic knife and the drilling mechanism 3, realizing the linkage of cutting and drilling processes, reducing equipment downtime, and improving processing continuity. The helical gear structure has a larger meshing surface, resulting in smoother transmission, reduced operating noise, reduced gear wear, and extended equipment service life.

[0032] Specifically, a cylinder fixing plate 4 is fixedly connected to the main body 1 of the knife holder. One side of the cylinder fixing plate 4 is fixedly connected to the negative pressure punching cylinder, and the movable end of the negative pressure punching cylinder is fixedly connected to the punching support 301. The upper end of the negative pressure punching rod 302 is rotatably connected to the punching support 301. A negative pressure spring 303 is sleeved on the negative pressure punching rod 302. The two ends of the negative pressure spring 303 abut against the punching support 301 and the punching bearing 304, respectively. The other side of the cylinder fixing plate 4 is fixedly connected to the negative pressure suction housing 57.

[0033] Using the above scheme, the punching mechanism 3 employs a negative pressure punching rod 302 in conjunction with a vacuum suction device 5. After punching, the puncher 312 can directly absorb the remaining material from processing materials such as waste fabric and leather through negative pressure, avoiding waste accumulation that affects processing accuracy and reducing manual cleaning steps. The negative pressure punching rod 302 adopts a hollow design, with the lower end connected to the puncher 312. During the punching process, the waste generated by punching can be directly absorbed through negative pressure, preventing waste from scattering and contaminating the equipment or workpiece surface, reducing subsequent cleaning processes, and improving the cleanliness of the working environment. The vacuum generator 53 is connected to the negative pressure punching rod 302 through a vacuum tube 51, using the air pressure difference to generate a strong suction force, which can quickly suck the waste generated by punching into the collection bin 56, preventing waste from accumulating in the punching area and affecting subsequent operations, thus improving processing continuity. The collection bin 56 is threadedly connected to the negative pressure fixing plate 55, facilitating quick disassembly and cleaning, and reducing maintenance time.

[0034] During the drilling process, the negative pressure spring 303 and the guide rod spring 309 provide buffering force, which, together with the linear bearing 311, guides the drilling guide rod 310, reducing vibration and offset during drilling and ensuring drilling accuracy. At the same time, the positioning auxiliary rod 10 and the limiting mechanism 12 can limit the drilling-related components, further improving stability.

[0035] Specifically, a drilling guide rod 310 is fixedly connected to the drilling support 301, a linear bearing 311 is fixedly connected to the tool holder body 1, the drilling guide rod 310 is slidably connected in the linear bearing 311, the lower end of the drilling guide rod 310 is connected to a guide rod lower seat 307, the lower end of the drilling guide rod 310 is slidably connected in the guide rod lower seat 307, a guide rod spring 309 is fixedly connected to the drilling guide rod 310, the end of the guide rod spring 309 away from the drilling guide rod 310 abuts against the upper end face of the guide rod lower seat 307, a through hole is opened at the bottom of the guide rod lower seat 307, and the punch 312 is coaxially arranged with the through hole and can be inserted into the through hole.

[0036] Using the above scheme, the punching guide rod 310 is slidably connected in the linear bearing 311, providing precise guidance for the lifting and lowering of the punching support 301, preventing the negative pressure punching rod 302 from shifting during punching, and ensuring accurate punching position; the sliding fit between the guide rod lower seat 307 and the punching guide rod 310 further enhances the guiding effect, and the through hole of the guide rod lower seat 307 is coaxially set with the puncher 312, which can limit the lower end of the puncher 312; the guide rod spring 309 abuts between the guide rod lower seat 307 and the punching guide rod 310, which can provide secondary buffer when the punching guide rod 310 descends, reducing the impact of punching vibration on punching accuracy, and at the same time assisting the punching guide rod 310 to reset, ensuring the consistency of each punching action, and adapting to the precision requirements of batch processing of shoe materials.

[0037] Specifically, the inkjet drawing device 7 includes a pen holder 72 and a pen cylinder 71 mounted on the pen holder 72. A drawing guide shaft 73 is fixedly connected to the pen holder 72. A connecting block 74 is slidably connected to the drawing guide shaft 73. The connecting block 74 is fixedly connected to the movable end of the pen cylinder 71. An integrated ink cartridge 75 is fixedly connected to the connecting block 74.

[0038] Using the above solution, the inkjet drawing device 7 drives the integrated ink cartridge 75 to rise and fall along the drawing guide shaft 73 through the pen cylinder 71. This allows for pre-drawing and positioning of the material before processing, ensuring the accuracy of the pneumatic knife cutting and drilling positions, reducing manual alignment errors, and improving processing precision.

[0039] Specifically, a vertically extending guide auxiliary rod 308 is fixedly connected to the guide rod lower seat 307, and the guide auxiliary rod 308 is slidably connected inside the tool holder body 1.

[0040] By adopting the above scheme, the movement direction of the guide rod lower seat 307 can be restricted, preventing the guide rod lower seat 307 from horizontally shifting or tilting during the drilling process, and further enhancing the overall guiding stability of the drilling mechanism 3.

[0041] Specifically, the negative pressure suction housing 57 has several through holes for venting, and the lower end of the negative pressure punching rod 302 is threadedly connected to a connector locking nut 305 for locking the conversion connector 306. Different sizes of punchers 312 can be installed through the conversion connector 306.

[0042] Using the above solution, the exhaust vent on the negative pressure suction housing 57 can balance the internal air pressure and ensure the stability of the adsorption efficiency; different sizes of punches 312 can be installed through the conversion connector 306, and with the precise transmission of the helical gear in the gear transmission mechanism 8, the punching position can be precisely controlled to meet the punching requirements of different specifications of workpieces, and it has strong versatility.

[0043] Specifically, the limiting mechanism 12 includes a positioning pin fixing block 122 fixed on the tool holder body 1. A tool head positioning pin 121 is installed on the positioning pin fixing block 122. A positioning pin spring 123 is sleeved on the tool head positioning pin 121. A positioning pin hole is opened on the tool holder body 1. The positioning pin spring 123 is installed in the positioning pin hole. The tool head positioning pin 121 slides in the positioning pin hole. The tool head positioning pin 121 can slide to the positioning pin groove to limit the rotation of the transmission large bearing sleeve 81.

[0044] Using the above solution, the positioning pin spring 123 pushes the cutter head positioning pin 121 into the positioning pin groove of the transmission bearing sleeve 81, which can lock the transmission bearing sleeve 81 when the equipment is stopped or the cutter head is replaced, preventing the cutter head from shaking or falling off due to accidental rotation of the transmission bearing sleeve 81 by external force, thus improving the safety of equipment operation; when the equipment needs to be started, the external driving force can push the cutter head positioning pin 121 to compress the positioning pin spring 123 and disengage it from the positioning pin groove, unlocking the transmission bearing sleeve 81. The operation is convenient, requires no additional tools, improves the efficiency of equipment start-up and shutdown, and adapts to the rhythm of continuous industrial production.

[0045] Specifically, a gear cover plate 2 is fixedly connected to the tool holder body 1 to cover the main transmission gear 82, the upper transmission pinion 84, and the lower transmission pinion 85. The main transmission gear 82, the upper transmission pinion 84, and the lower transmission pinion 85 are all located between the tool holder body 1 and the gear cover plate 2. The main transmission gear 82, the drive gear 83, the upper transmission pinion 84, and the lower transmission pinion 85 are all helical gear structures.

[0046] Using the above scheme, the gear transmission mechanism 8 adopts a helical tooth meshing design. Compared with spur gear transmission, the helical tooth meshing surface is larger, the transmission is smoother, the operating noise is reduced, the gear wear is reduced, and the service life is extended.

[0047] Specifically, the lifting mechanism 11 includes a ball screw assembly 114 mounted on the tool holder body 1 and a screw motor support 113 fixed to the back plate 9. The nut of the ball screw assembly 114 is fixed to the tool holder body 1, and the screw of the ball screw assembly 114 is rotatably connected to the screw motor support 113 through a bearing. A coupling 112 is fixed to the upper end of the ball screw assembly 114. A screw motor body 111 is fixed to the screw motor support 113. The output shaft of the screw motor body 111 is fixed to the coupling 112. The mechanism also includes an anti-fall spring 115 fixed to the screw motor support 113. The end of the anti-fall spring 115 away from the screw motor support 113 is fixed to the tool holder body 1.

[0048] The above scheme employs a lifting mechanism 11 composed of a ball screw assembly 114 and a screw motor body 111. Guided by a linear guide rail, the tool holder body 1 achieves high-precision and stable vertical lifting, ensuring the accurate positioning of the pneumatic tool during height adjustment and meeting processing requirements under different working conditions. The anti-fall spring 115 provides tensile support to the tool holder body 1 in case of malfunction of the screw motor body 111 or the ball screw assembly 114, preventing sudden falls that could damage equipment or cause safety accidents, thus improving the operational safety of the device.

[0049] The working principle of this utility model: When using, clamping and starting: Place the pneumatic knife into the transmission bearing sleeve 81, tighten the knife head locking nut 88 to fix it, and limit the pneumatic knife handle with the positioning auxiliary rod 10; turn on the power supply, power on the air compressor and each motor, and initialize the control system PLC; Line drawing positioning: According to the processing requirements, the pen cylinder 71 drives the connecting block 74 to descend along the line drawing guide shaft 73, and the integrated ink cartridge 75 contacts the surface of the shoe material to draw a line according to the preset path. After the positioning is completed, the pen cylinder 71 is reset. Cutting operation: The lead screw motor body 111 drives the ball screw pair 114 to rotate, the cutter holder body 1 descends along the linear slide rail to release the cutter, the gear motor drives the drive gear 83 to rotate, and through the transmission main gear 82 drives the transmission large bearing sleeve 81 to rotate with the pneumatic cutter. The pneumatic cutter cuts the shoe material according to the drawn trajectory; after the cutting is completed, the lead screw motor body 111 reverses, and the cutter holder body 1 rises to lift the cutter. Drilling and Waste Discharge: When drilling is required, the gear motor drives the drilling bearing 304 and the negative pressure drilling rod 302 to rotate through gear transmission. The negative pressure drilling cylinder extends, driving the drilling support 301 and the negative pressure drilling rod 302 to descend. The drill 312 rotates and moves down to complete the drilling. At the same time, the vacuum generator 53 starts, generating negative pressure through the vacuum tube 51 and the hollow negative pressure drilling rod 302 to adsorb the drilling waste. The waste falls into the collection bin 56 through the air outlet of the vacuum generator 53. After drilling is completed, the negative pressure drilling cylinder retracts, and the negative pressure spring 303 and the guide rod spring 309 assist in the reset. Maintenance and cleaning: After the batch processing is completed, turn off the power, unscrew the collection bin 56, and clean the internal waste; if the punch 312 needs to be replaced, loosen the connector locking nut 305, and replace the adapter 306 with the corresponding size punch 312.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A helically toothed gear drive tool holder characterized by: Includes a back plate (9), on which a lifting mechanism (11) is installed, and a knife holder body (1) is slidably connected to the back plate (9) along the vertical direction. The lifting mechanism (11) drives the knife holder body (1) to slide up and down at the back plate (9). A gear transmission mechanism (8) is installed on the knife holder body (1), and a pneumatic knife is installed in the gear transmission mechanism (8). The gear transmission mechanism (8) is connected to a drilling mechanism (3) installed on the knife holder body (1). The drilling mechanism (3) is connected to a vacuum suction device (5). It also includes an inkjet drawing device (7) and a limiting mechanism (12) installed on the knife holder body (1). The drilling mechanism (3) includes a drilling bearing (304) rotatably connected to the tool holder body (1), the drilling bearing (304) being connected to the gear transmission mechanism (8), a hollow negative pressure drilling rod (302) being slidably connected inside the drilling bearing (304), a negative pressure drilling cylinder being installed on the tool holder body (1), the upper end of the negative pressure drilling rod (302) being connected to the movable end of the negative pressure drilling cylinder, and a driller (312) being installed at the lower end of the negative pressure drilling rod (302) through a conversion joint (306), and the negative pressure drilling rod (302) being connected to the driller (312). The vacuum suction device (5) includes a negative pressure suction housing (57). Inside the negative pressure suction housing (57) are installed a generator support plate (54) and a negative pressure fixing plate (55). The negative pressure fixing plate (55) is located below the generator support plate (54). A collection bin (56) is threaded onto the negative pressure fixing plate (55). A vacuum generator (53) is installed on the generator support plate (54). The air inlet of the vacuum generator (53) is connected to the air outlet of the air compressor through an air nozzle (52). The air outlet of the vacuum generator (53) is located below the vacuum generator (53) and faces the collection bin (56). The air inlet of the vacuum generator (53) is connected to the negative pressure punching rod (302) through a vacuum tube (51). The vacuum tube (51) is a flexible tube.

2. A cutter holder with helical gearing as claimed in claim 1, characterized in that: The gear transmission mechanism (8) includes a transmission bearing sleeve (81) rotatably connected to the tool holder body (1). The transmission bearing sleeve (81) has a tool head mounting groove for placing the pneumatic knife. A tool head locking nut (88) is threaded onto the transmission bearing sleeve (81). The pneumatic knife is fixed in the transmission bearing sleeve (81) by tightening the tool head locking nut (88). A positioning auxiliary rod (10) is also installed on the tool holder body (1). The positioning auxiliary rod (10) limits the handle of the pneumatic knife. The side wall of the transmission bearing sleeve (81) also has an identification groove and a positioning pin groove. The side wall of the tool holder body (1) has a limiter mounting groove for installing a position sensor. A side cover plate (6) is fixed to the outside of the side wall of the tool holder body (1). A main transmission gear (82) is fixedly connected to the transmission bearing sleeve (81). The main transmission gear (82) meshes with a drive gear (83), an upper transmission pinion (84), and a lower transmission pinion (85). A gear motor support seat (86) is fixedly connected to the tool holder body (1). A gear motor body (87) is fixedly connected to the gear motor support seat (86). The output shaft of the gear motor body (87) is fixedly connected to the drive gear (83). The upper transmission pinion (84) and the lower transmission pinion (85) are respectively fixedly connected to a perforated bearing (304).

3. The tool holder for helical gear transmission as described in claim 1, characterized in that: A cylinder fixing plate (4) is fixedly connected to the main body (1) of the knife holder. One side of the cylinder fixing plate (4) is fixedly connected to the negative pressure punching cylinder, and the movable end of the negative pressure punching cylinder is fixedly connected to the punching support seat (301). The upper end of the negative pressure punching rod (302) is rotatably connected to the punching support seat (301). A negative pressure spring (303) is sleeved on the negative pressure punching rod (302). The two ends of the negative pressure spring (303) abut against the punching support seat (301) and the punching bearing (304) respectively. The other side of the cylinder fixing plate (4) is fixedly connected to the negative pressure suction housing (57).

4. A cutter holder with helical gearing as claimed in claim 3, characterized in that: A drilling guide rod (310) is fixedly connected to the drilling support base (301), and a linear bearing (311) is fixedly connected to the tool holder body (1). The drilling guide rod (310) is slidably connected in the linear bearing (311). The lower end of the drilling guide rod (310) is connected to a guide rod lower seat (307). The lower end of the drilling guide rod (310) is slidably connected in the guide rod lower seat (307). A guide rod spring (309) is fixedly connected to the drilling guide rod (310). The end of the guide rod spring (309) away from the drilling guide rod (310) abuts against the upper end face of the guide rod lower seat (307). A through hole is opened at the bottom of the guide rod lower seat (307). The punch (312) is coaxially arranged with the through hole and the punch (312) can be inserted into the through hole.

5. A helical gear drive tool holder as claimed in claim 1, wherein: The inkjet drawing device (7) includes a pen holder (72) and a pen cylinder (71) mounted on the pen holder (72). A drawing guide shaft (73) is fixedly connected to the pen holder (72). A connecting block (74) is slidably connected to the drawing guide shaft (73). The connecting block (74) is fixedly connected to the movable end of the pen cylinder (71). An integrated ink cartridge (75) is fixedly connected to the connecting block (74).

6. The tool holder with helical gear transmission as described in claim 4, characterized in that: A guide auxiliary rod (308) extending vertically is fixedly connected to the guide rod lower seat (307), and the guide auxiliary rod (308) is slidably connected inside the tool holder body (1).

7. A tool holder for helical gear transmission as described in claim 1, characterized in that: The negative pressure suction housing (57) has several through holes for venting. The lower end of the negative pressure punching rod (302) is threaded with a connector locking nut (305) for locking the conversion connector (306). Different sizes of punchers (312) can be installed through the conversion connector (306).

8. A cutter holder with helical gearing as claimed in claim 2, characterized in that: The limiting mechanism (12) includes a positioning pin fixing block (122) fixed on the tool holder body (1), a tool head positioning pin (121) is installed on the positioning pin fixing block (122), a positioning pin spring (123) is sleeved on the tool head positioning pin (121), a positioning pin hole is opened on the tool holder body (1), the positioning pin spring (123) is installed in the positioning pin hole, the tool head positioning pin (121) slides in the positioning pin hole, and the tool head positioning pin (121) can slide to the positioning pin groove to limit the rotation of the transmission large bearing sleeve (81).

9. A cutter holder with helical gearing as claimed in claim 2, characterized in that: The tool holder body (1) is fixedly connected to a gear cover plate (2) for covering the main transmission gear (82), the upper transmission pinion (84) and the lower transmission pinion (85). The main transmission gear (82), the upper transmission pinion (84) and the lower transmission pinion (85) are all located between the tool holder body (1) and the gear cover plate (2). The main transmission gear (82), the drive gear (83), the upper transmission pinion (84) and the lower transmission pinion (85) are all helical gear structures.

10. A tool holder for helical gear transmission as described in claim 1, characterized in that: The lifting mechanism (11) includes a ball screw assembly (114) mounted on the tool holder body (1) and a screw motor support seat (113) fixed on the back plate (9). The nut of the ball screw assembly (114) is fixed on the tool holder body (1). The screw of the ball screw assembly (114) is rotatably connected to the screw motor support seat (113) through a bearing. A coupling (112) is fixed to the upper end of the ball screw assembly (114). A screw motor body (111) is fixed on the screw motor support seat (113). The output shaft of the screw motor body (111) is fixed to the coupling (112). The mechanism also includes an anti-fall spring (115) fixed on the screw motor support seat (113). The end of the anti-fall spring (115) away from the screw motor support seat (113) is fixed to the tool holder body (1).

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