Adsorption platform and cutting machine

Abstract

The utility model relates to the field of leather cutting, in particular to an adsorption platform and a cutting machine, a control valve comprises an air duct, a clamp spring, a first lifting air cylinder, a chock plug and a guide rod, the interior of the air duct is of a through structure, a node area corresponding to the chock plug in shape is arranged in the air duct, the chock plug is located in the node area, and the output end of the first lifting air cylinder is connected with the chock plug. One end of the guide rod is connected with the upper end of the chock plug, and the other end of the guide rod penetrates through the via hole of the other clamp spring above the chock plug; when a local area is adsorbed and fixed, a first lifting air cylinder outside the area is controlled to do jacking action, the jacking action enables a plug to move outwards towards a node area, and when the plug reaches the stroke end point of the first lifting air cylinder, an inclined plane on the plug is in close contact with the inner wall of the node area, so that a sealing area is formed in the air duct; for the negative pressure flow channel of the local area, a small-power negative pressure source can also provide enough negative pressure, and the effect of reducing cost is achieved.

Description

Technical Field

[0001] This utility model relates to the field of leather cutting, and more particularly to an adsorption platform and a cutting machine. Background Technology

[0002] The suction platform of a leather cutting machine is an important technical component, widely used in the leather industry, especially in automated cutting and processing. Its main function is to use suction to hold the leather material to be cut, ensuring its stability during the cutting process and thus improving cutting accuracy and efficiency.

[0003] When cutting leather, an adsorption platform is usually used to hold the leather in place and cut a portion of it to create a predetermined shape. However, the adsorption structure of this platform simply involves a negative pressure source connected to the adsorption port on the platform via an adsorption pipe. In other words, this adsorption method lacks regional control. As mentioned earlier, the cutting is done on a localized area of ​​the leather, and full adsorption does not improve the cutting effect. Moreover, it requires a very high-power blower, resulting in a relatively high overall cost. Utility Model Content

[0004] To address the aforementioned issues, this invention provides an adsorption platform and a cutting machine, aiming to solve the problem of lack of area control and effectively reduce the power requirements of the blower.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adsorption platform, comprising a negative pressure platform, the surface of which is provided with an adsorption port, characterized in that it further comprises a control valve disposed at the bottom of the negative pressure platform, the control valve comprising a wind duct, snap rings, a first lifting cylinder, a plug, and a guide rod, the outer surface of the plug having an inclined surface, the interior of the wind duct having a hollow structure, and its interior having a node region corresponding to the shape of the plug, the upper and lower ends of the wind duct having openings communicating with the interior, multiple snap rings being provided, at least two snap rings being sleeved on the first lifting cylinder for fixing the first cylinder, the plug being located in the node region, the output end of the first lifting cylinder being connected to the plug, one end of the guide rod being connected to the upper end of the plug, and the other end passing through the through hole of another snap ring above the plug for guiding the plug to perform directional lifting and lowering movements.

[0006] The beneficial effects of this utility model are:

[0007] When performing adsorption and fixation on a localized area, a lifting cylinder outside the controlled area is used to perform a lifting action. This lifting action causes the plug to move outward toward the node area. When it reaches the end of the stroke of the first lifting cylinder, the inclined surface of the plug will come into close contact with the inner wall of the node area, thus forming a sealed area inside the air duct. At this time, the negative pressure flow channel in the adsorption platform is completely controlled in a certain area. For this localized negative pressure flow channel, a low-power negative pressure source can also provide sufficient negative pressure, thus achieving the effect of reducing costs.

[0008] The inner wall of the air duct is provided with a slot, and the outer edge of the retaining spring has multiple locking parts that snap into the slot. The locking part includes a deformation space and a spring piece. The spring piece cooperates with the slot to form a fixed shape. During the assembly process, the spring piece is squeezed by the inner wall of the air duct and retracts into the deformation space. After reaching the slot, the spring piece resets and engages with the slot. The advantage of this design is that it has fewer parts, optimizes the entire complex assembly process, and does not require additional space for installing bolts, latches, or other fixing components, which helps to improve the compactness and assemblability of the overall product.

[0009] Specifically, the retaining ring is a metal sheet, and an L-shaped cutout connecting to the outside of the retaining ring is stamped out of the edge area of ​​the metal sheet. The spring is part of the L-shaped cutout, and the outer wall of the spring has an outwardly protruding engagement part.

[0010] The surface of the snap ring is also provided with multiple openings to increase the cross-sectional area of ​​the negative pressure airflow channel, resulting in a larger gas flow rate and increased flow velocity of the negative pressure airflow.

[0011] The adsorption platform also includes a frame and a cutting pad. The frame has multiple drive rollers, and the cutting pad is fitted onto these rollers. The frame also has a tension adjustment device for adjusting the position of the drive rollers and thus changing the tension of the entire cutting pad. This tension adjustment device includes a roller adjustment seat and an adjusting bolt. Support seats are located at both ends of the drive rollers, allowing them to rotate. Roller adjustment blocks are located on the support seats, and these blocks have straight slots through which the roller adjustment blocks pass. The adjusting bolt passes through the roller adjustment blocks and connects to the roller adjustment seat. The roller adjustment blocks and the adjusting bolt are threaded together. When the adjusting bolt is rotated, the roller adjustment blocks reciprocate within the straight slots, thus moving the entire drive roller back and forth. Consequently, the tension of the cutting pad changes as the drive rollers move.

[0012] A hopper is also located at the bottom of one end of the frame to collect the leather after the work is completed.

[0013] The area of ​​the frame corresponding to the hopper is provided with a brush assembly below the cutting pad, which is used to scrape off the leather residue on the cutting pad. The brush assembly includes a pressure roller cover and brush bristles. The brush bristles are set on the pressure roller cover and abut against the cutting pad. In this embodiment, the brush bristles are located in the return path of the cutting pad, that is, the brush bristles are located below the cutting pad.

[0014] A cutting machine includes the aforementioned adsorption platform, a cutting section, and a linear moving mechanism that drives the cutting section to reciprocate on the adsorption platform. Racks are provided on both sides of the adsorption platform. The linear moving mechanism includes a servo motor and a longitudinal beam. The two ends of the longitudinal beam are slidably connected to the two sides of the adsorption platform. The cutting section is mounted on the longitudinal beam. Servo motors are provided at both ends of the longitudinal beam. A drive gear that meshes with the racks is provided at the output end of each servo motor. The servo motors are fixed to the longitudinal beam. Under the action of the servo motors, the entire longitudinal beam moves back and forth on the adsorption platform.

[0015] The longitudinal beam is also equipped with a cutter holder and a nozzle. The cutting part is set on the cutter holder, and the nozzle is used to spray pattern lines on the leather. After the brush completes the outline of the leather, the nozzle is used to spray new pattern lines on the original lines. The effect of the new pattern lines is more obvious and clear. When facing some leathers with relatively rough surfaces, the problem of unclear lines caused by relatively blurry lines is solved by inkjet printing to increase the sense of identification. This clear and obvious effect is not only reflected in the color itself, but also in the fact that the line width of the new pattern lines is greater than that of the brush after using the nozzle.

[0016] In addition, after using the nozzle, new pattern lines can be sprayed onto the leather separately according to the needs of some customers. These new lines can form new patterns (including but not limited to matching numbers, model sizes, and other information).

[0017] Specifically, a second lifting cylinder is provided on the output end of the longitudinal beam section (the longitudinal beam section is the existing linear moving structure). The second lifting cylinder is used to adjust the height of the printhead. The printhead contains multiple ink cartridges, and the bottom of the ink cartridges has an ink droplet outlet. The colors in each ink cartridge are different. Adjusting the height is used to change the spacing between the ink droplets, thereby adjusting the depth of the color.

[0018] The printhead is a part of the inkjet equipment, and the height of the entire inkjet equipment is directly controlled by the output end of the second lifting cylinder.

[0019] Inkjet equipment is existing technology, and its structure and specific principles will not be elaborated here. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention.

[0021] Figure 2 This is a perspective view of a portion of the structure of this utility model.

[0022] Figure 3 yes Figure 2 A three-dimensional view after removing the cutting pad and negative pressure table.

[0023] Figure 4 yes Figure 3 Enlarged diagram of point A.

[0024] Figure 5 It is a 3D diagram of a control valve.

[0025] Figure 6 yes Figure 5 An explosion diagram.

[0026] Figure 7 yes Figure 5 A sectional view.

[0027] Figure 8 yes Figure 7 Enlarged diagram of point B.

[0028] Figure 9 This is a 3D diagram of a snap ring.

[0029] Figure 10 This is a three-dimensional diagram of the tension adjustment device.

[0030] Figure 11 This is an assembly diagram of the frame and brush assembly.

[0031] Figure 12 This is a 3D view of the brush assembly.

[0032] Figure 13 This is a schematic diagram of the assembly of the cutting section and the blade holder.

[0033] Figure 14 yes Figure 13 A stereoscopic view from another perspective. Detailed Implementation

[0034] like Figure 1-14As shown, a cutting machine includes an adsorption platform, which includes a negative pressure platform. The surface of the negative pressure platform is provided with an adsorption port (not shown in the figure). It also includes a control valve 2 located at the bottom of the negative pressure platform. The control valve 2 includes a blower 21, a retaining ring 22, a first lifting cylinder 23, a plug 24, and a guide rod 25. The outer surface of the plug 24 has an inclined surface. The interior of the blower 21 is a hollow structure with a node region 21a corresponding to the shape of the plug 24. The upper and lower ends of the blower 21 have openings communicating with the interior. Multiple retaining rings 22 are provided, and at least two retaining rings 22 are fitted onto the first lifting cylinder 23 to fix the first lifting cylinder 23. The plug 24 is located in the node region 21a. The output end of the first lifting cylinder 23 is connected to the plug 24. One end of the guide rod 25 is connected to the upper end of the plug 24, and the other end passes through the through hole of another retaining ring 22 above the plug 24 to guide the plug 24 to perform directional lifting and lowering movements.

[0035] The beneficial effects of this utility model are:

[0036] When performing adsorption and fixation on a localized area, the first lifting cylinder 23 outside the controlled area is lifted, causing the plug 24 to move outward toward the node area 21a. When it reaches the end of the stroke of the first lifting cylinder 23, the inclined surface on the plug 24 will come into close contact with the inner wall of the node area 21a, thus forming a sealed area inside the air duct 21. At this time, the negative pressure flow channel in the adsorption platform is completely controlled in a certain area. For this localized negative pressure flow channel, a low-power negative pressure source can also provide sufficient negative pressure, thus achieving the effect of reducing costs.

[0037] The inner wall of the air duct 21 is provided with a slot 21b. The outer edge of the retaining spring 22 has multiple clamping parts that fit into the slot 21b. The clamping parts include a deformation space 22b and a spring piece 22a. The spring piece 22a cooperates with the slot 21b to form a fixed shape. During the assembly process, the spring piece 22a is squeezed by the inner wall of the air duct 21 and retracts into the deformation space 22b. After reaching the slot 21b, the spring piece 22a resets and engages with the slot 21b. The advantage of this solution is that it has fewer parts, optimizes the entire complex assembly process, and does not require additional space for installing bolts, latches, or other fixing components, which helps to improve the compactness and assemblability of the overall product.

[0038] Specifically, the retaining spring 22 is a metal sheet. An L-shaped cut is stamped out of the edge of the metal sheet, connecting to the outside of the retaining spring 22, thereby forming the aforementioned deformation space 22b. The spring piece 22a is part of the L-shaped cut. The outer wall of the spring piece 22a has an outwardly protruding engaging part 22a-1. After using the engaging part 22a-1, the engaging effect is more stable.

[0039] The surface of the snap ring 22 is also provided with multiple openings 22c to increase the cross-sectional area of ​​the flow channel of the negative pressure airflow, resulting in a larger gas flow rate and an increased flow velocity of the negative pressure airflow.

[0040] The adsorption platform also includes a frame 3 and a cutting pad 4. A negative pressure platform is set on the frame 3, which has multiple drive rollers 5. The cutting pad 4 is fitted onto the drive rollers 5. The frame 3 also has a tension adjustment device for adjusting the position of the drive rollers 5 and changing the tension of the entire cutting pad 4. The tension adjustment device includes a roller adjustment seat 81 and an adjustment bolt 82. The two ends of the drive rollers 5 are provided with support seats 7. The drive rollers 5 can rotate under the support of the support seats 7. The support seats 7 are provided with roller adjustment blocks 6. The roller adjustment seat 81 has a straight groove 81-a. The roller adjustment blocks 6 pass through the straight groove 81-a. The adjustment bolt 82 passes through the roller adjustment blocks 6 and connects to the roller adjustment seat 81. The roller adjustment blocks 6 and the adjustment bolt 82 are threaded together. When the adjustment bolt 82 is rotated, the roller adjustment blocks 6 move back and forth in the straight groove 81-a, thereby driving the entire drive rollers 5 to move back and forth. The tension of the cutting pad 4 changes as the drive rollers 5 move.

[0041] A hopper 9 is also provided at the bottom of one end of the frame 3 for collecting the leather after the work is completed.

[0042] The area of ​​the frame 3 corresponding to the hopper 9 is provided with a brush assembly 10 below the cutting pad 4, which is used to scrape off the leather residue on the cutting pad 4. The brush assembly 10 includes a pressure roller cover 10-1 and brush bristles 10-2. The brush bristles 10-2 are disposed on the pressure roller cover 10-1 and abut against the cutting pad 4. In this embodiment, the brush bristles 10-2 are located in the return path of the cutting pad 4, that is, the brush bristles 10-2 are located below the cutting pad 4.

[0043] The cutting machine also includes a cutting section 11 and a linear moving mechanism that drives the cutting section 11 to reciprocate on the adsorption platform. The adsorption platform is provided with racks on both sides. The linear moving mechanism includes a servo motor 12 and a longitudinal beam section 13. The two ends of the longitudinal beam section 13 are also slidably connected to the two sides of the adsorption platform. The cutting section 11 is set on the longitudinal beam section 13. The two ends of the longitudinal beam section 13 are provided with servo motors 12. The output end of the servo motor 12 is provided with a drive gear that meshes with the rack. The servo motor 12 and the longitudinal beam section 13 are fixed. Under the action of the servo motor 12, the entire longitudinal beam section 13 moves back and forth on the adsorption platform.

[0044] The longitudinal beam 13 is also equipped with a blade holder 13-a and a nozzle 14. The cutting part 11 is set on the blade holder 13-a, and the nozzle 14 is used to spray pattern lines on the leather. After the brush 15 completes the outline of the leather, the nozzle 14 is used to spray new pattern lines on the original lines. The effect of the new pattern lines is more obvious and clear. When facing some leathers with relatively rough surfaces, the problem of unclear lines caused by relatively blurry lines is solved by increasing the sense of identification through inkjet printing. This clear and obvious effect is not only reflected in the color itself. After using the nozzle 14, the line width of the new pattern lines is larger than the line width of the brush 15.

[0045] In addition, after using nozzle 14, new pattern lines can be sprayed onto the leather individually to meet the needs of some customers. These new lines can form new patterns.

[0046] Specifically, a second lifting cylinder 16 is provided on the output end of the longitudinal beam section 13 (the longitudinal beam section 13 is an existing linear moving structure that drives the blade holder 13-a to move back and forth along the length of the longitudinal beam section 13). The second lifting cylinder 16 is used to adjust the height of the printhead 14. The printhead 14 contains multiple ink cartridges 14-a. The bottom of the ink cartridge 14-a is provided with an ink droplet outlet 14-b. The colors in each ink cartridge 14-a are different. Adjusting the height is used to change the spacing between the ink droplets, thereby adjusting the depth of the color.

[0047] The printhead 14 is part of the inkjet equipment, which is located on the output end of the second lifting cylinder 16 and directly controls the height of the entire inkjet equipment.

[0048] Inkjet equipment is existing technology, and its structure and specific principles will not be elaborated here.

[0049] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An adsorption platform comprising a negative pressure table, the surface of the negative pressure table being provided with an adsorption port, characterized in that, The control valve is arranged at the bottom of the negative pressure table, and comprises a wind pipe, a clamping spring, a first lifting cylinder, a plug, and a guide rod. The outer surface of the plug has an inclined surface. The inside of the wind pipe is a through structure, and has a node area corresponding to the shape of the plug. The upper end and the lower end of the wind pipe have openings in communication with the inside. The clamping spring is provided with a plurality of clamping springs, at least two of which are sleeved on the first lifting cylinder. The plug is located in the node area. The output end of the first lifting cylinder is connected with the plug. One end of the guide rod is connected with the upper end of the plug, and the other end penetrates through the through hole of another clamping spring above the plug.

2. The adsorption platform of claim 1, wherein, The inner wall of the wind pipe is provided with a clamping groove. The outer edge of the clamping spring has a plurality of clamping portions clamped into the clamping groove. The clamping portion comprises a deformation space and a spring piece. The spring piece cooperates with the clamping groove to form a fixing. The clamping spring is a metal sheet. An L-shaped notch is punched on the edge area of the metal sheet to communicate with the outside of the clamping spring. The spring piece is part of the L-shaped notch. The outer wall of the spring piece is provided with an outward protruding clamping portion.

3. The adsorption platform of claim 2, wherein, A plurality of opening portions are further arranged on the surface of the clamping spring.

4. The adsorption platform of claim 1, wherein, The adsorption platform further comprises a rack and a cutting pad. The negative pressure table is arranged on the rack. A plurality of transmission rollers are arranged on the rack. The cutting pad is sleeved on the transmission rollers. The rack is further provided with a tension adjusting device. The tension adjusting device comprises a rolling adjusting seat and an adjusting bolt. The two ends of the transmission roller are provided with support seats. The transmission roller can rotate under the support of the support seat. At least one of the support seats is provided with a rolling adjusting block. The rolling adjusting block penetrates through the straight slot of the rolling adjusting seat. The adjusting bolt is connected with the rolling adjusting seat through the rolling adjusting block. The rolling adjusting block and the adjusting bolt are screw-connected.

5. The adsorption platform of claim 4, wherein, A hopper is further arranged below one end of the rack. A brush assembly is arranged below the cutting pad in the area of the rack corresponding to the hopper, for scraping the residual hair of the leather on the cutting pad. The brush assembly comprises a pressure roller cover and brush hairs. The brush hairs are arranged on the pressure roller cover and abut against the cutting pad.

6. A cutting machine comprising the suction platform according to any one of claims 1 to 5, characterized in that, The linear movement mechanism for driving the cutting part to move back and forth on the adsorption platform is further arranged. Racks are arranged on both sides of the adsorption platform. The linear movement mechanism comprises a servo motor and a longitudinal beam part. The two ends of the longitudinal beam part are further connected with the two sides of the adsorption platform in a sliding manner. The cutting part is arranged on the longitudinal beam part. Servo motors are arranged on both ends of the longitudinal beam part. The output end of the servo motor is provided with a driving gear meshing with the rack.

7. A cutting machine according to claim 6, wherein The inkjet equipment is further arranged. The inkjet head is part of the inkjet equipment. A second lifting cylinder is arranged on the output end of the longitudinal beam part. The inkjet equipment is arranged on the output end of the second lifting cylinder. The inkjet head comprises a plurality of ink cartridges. The bottom of the ink cartridge is provided with an ink droplet outlet.

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