Jump-cut switching mechanism and jump-cut machine

Abstract

The utility model relates to a jump-cutting switching mechanism and a jump-cutting machine, the jump-cutting switching mechanism comprises a cutter pad and a switching device, the cutter pad is located above the switching device, and the switching device is in transmission connection with the cutter pad; the switching device comprises a sliding block, a pulley and a switching driving assembly, the sliding block is movably arranged on the tool rest through the switching driving assembly, the sliding block is provided with two adjacent step faces with different heights in the moving direction, the tool pad is located above the sliding block, and the pulley is installed on the tool pad and cooperates with the two step faces. In the switching process of the jump cutting machine between the full-breaking working condition and the half-breaking working condition, the sliding block is driven by the switching driving assembly to move relative to the pulley, and the pulley moving between the two step faces drives the cutter pad to move at different heights. According to the switching device disclosed by the utility model, the pulley arranged at the cutter pad rolls between the two step surfaces with different heights of the sliding block to drive the cutter pad to move up and down, so that the height of the cutter pad is quickly adjusted, and the switching between full breaking and half breaking can be stably realized in a non-stop state.

Description

Technical Field

[0001] The utility model relates to the technical field of jump cutting equipment, in particular to a jump cutting switching mechanism and a jump cutting machine. Background Art

[0002] In the prior art, plastic sheets and metal sheets are formed in whole sheets or rolls. During the application process, the sheets need to be cut. During the cutting process, the sheets are either cut completely into pieces or cut in half and connected. The lower sheet can be separated by slightly tearing.

[0003] The sheet can be cut by the jump cutter. In order to meet the half-cutting or full-cutting processing of the sheet, the distance between the cutter and the knife pad of the jump cutter needs to be adjustable. If the machine is stopped, the distance between the two can be adjusted well, but this will affect the production efficiency of the equipment. In order to ensure production efficiency, it is necessary to design a jump cutter that can stably and quickly adjust the distance between the cutter and the knife pad without stopping the machine. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a jump cut switching mechanism and a jump cut machine.

[0005] In a first aspect, the utility model provides a jump-cut switching mechanism, comprising a knife pad and a switching device, wherein the knife pad is located above the switching device, and the switching device is transmission-connected to the knife pad;

[0006] The switching device includes a slider, a pulley and a switching drive assembly. The slider is movably arranged on the tool holder through the switching drive assembly. The slider is provided with two adjacent step surfaces of different heights in the moving direction. The tool pad is located above the slider. The pulley is installed on the tool pad and cooperates with the two step surfaces. During the switching process between the full-break working condition and the half-break working condition of the jump cutter, the slider moves relative to the pulley driven by the switching drive assembly, and the pulley moving between the two step surfaces drives the tool pad to move between different heights.

[0007] In some embodiments, a base plate is provided below the knife pad, a vertical plate and a guide plate are provided on the base plate, a limiting groove for installing the knife pad is formed between the vertical plate and the base plate, the slider is movably provided at the bottom of the limiting groove, the switching drive assembly is installed on one side of the guide plate, and the switching drive assembly drives the knife pad to move up and down in the limiting groove through the slider and the pulley.

[0008] In some of the embodiments, the base plate is mounted with a guide block, and the guide block is slidably connected to the slider.

[0009] In some embodiments, the switching drive assembly includes a driving cylinder, a driving rod and a connecting block, the driving cylinder is installed on the outside of the guide plate, the driving end of the driving cylinder is connected to the connecting block through the driving rod, the connecting block is fixedly connected to the slider, and the driving cylinder drives the slider to move through the driving rod and the connecting block; the slider is provided with a limiting screw on the other side opposite to the driving cylinder, the limiting screw is installed on the guide plate, and the end face of the limiting screw is in contact with the side wall of the slider.

[0010] In some embodiments, the slider is provided with a first step surface, a mounting groove is countersunk on the first step surface, a cushion block is installed in the mounting groove, a second step surface is provided on the cushion block, and the second step surface is higher than the first step surface.

[0011] In some embodiments, both the first step surface and the second step surface are inclined surfaces.

[0012] In some embodiments, a groove is provided on the lower end surface of the knife pad, the sliding block is movably disposed in the groove, and the pulley is installed in the groove via a positioning shaft.

[0013] In a second aspect, the utility model further provides a jump cutter, comprising the jump cut switching mechanism described in the first aspect, wherein the jump cut switching mechanism is arranged below a jump cutter head, and the jump cutter head is transmission-connected to a driving unit.

[0014] In some embodiments, the driving unit includes a driving motor and a driving shaft, the driving motor is drivingly connected to the driving shaft, an eccentric wheel is provided on the driving shaft, and a connecting rod is provided on the eccentric wheel which is drivingly connected to the jump cutting head.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the switching device drives the knife pad to move up and down by rolling the pulley arranged at the knife pad between two step surfaces of different heights of the slider, thereby quickly adjusting the height of the knife pad, and the knife pad is adjusted independently relative to the jump cutting head, which will not interfere with the movement of the jump cutting head, thereby ensuring that the full-break and half-break switching can be stably achieved without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the jump cutter of the embodiment of the present application.

[0017] Figure 2 It is a structural schematic diagram of the assembly between the jump cutting switching mechanism and the jump cutting head in the embodiment of the present application.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the jump switching mechanism of an embodiment of the present application.

[0019] Figure 4It is a schematic diagram of the exploded structure of the jump switching mechanism of the embodiment of the present application.

[0020] Reference numerals: 1, jump cutting machine head; 11, lifting plate; 12, connecting seat; 13, cutting knife;

[0021] 2. Knife pad; 21. Profile groove;

[0022] 3. Switching device;

[0023] 4. Sliding block; 41. Mounting groove; 42. Cushion block; 43. First step surface; 44. Second step surface;

[0024] 5. Pulley; 51. Positioning shaft;

[0025] 6. Switching drive assembly; 61. Driving cylinder; 62. Driving rod; 63. Connecting block; 64. Limiting screw;

[0026] 7. Frame; 71. Bottom plate; 72. Guide plate; 73. Vertical plate; 74. Limiting groove; 75. Guide block;

[0027] 8. driving unit; 81. driving motor; 82. driving shaft; 83. eccentric wheel; 84. connecting rod. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present utility model are introduced with reference to the accompanying drawings.

[0029] refer to Figure 1 The figure is a schematic diagram of the three-dimensional structure of the jump cutting machine, the lower part is the frame 7, the upper part is the jump cutting head 1, the sheet to be jump cut is placed on the platform of the right frame 7, the sheet is gradually pushed under the jump cutting head 1 for jump cutting, and the processed sheet is unloaded at the left frame 7.

[0030] refer to Figures 1 to 4 A jump cutting switching mechanism includes a knife pad 2 and a switching device 3. The knife pad 2 is located above the switching device 3, and the switching device 3 is connected to the knife pad 2 by transmission; the switching device 3 includes a slider 4, a pulley 5 and a switching drive assembly 6. The slider 4 is movably arranged on the tool holder through the switching drive assembly 6. The slider 4 is provided with two adjacent step surfaces with different heights in the movement direction. The knife pad 2 is located above the slider 4. The pulley 5 is installed on the knife pad 2 and cooperates with the two step surfaces. During the switching process between the full-break working condition and the half-break working condition of the jump cutting machine, the slider 4 moves relative to the pulley 5 under the drive of the switching drive assembly 6, and the pulley 5 moving between the two step surfaces drives the knife pad 2 to move between different heights.

[0031] In order to stably adjust the height of the knife pad 2, in this embodiment, refer to Figures 2 to 4A bottom plate 71 is provided on the frame 7, and guide plates 72 are vertically provided on both sides of the bottom plate 71 in the length direction, and the jump cutting head 1 moves up and down along the guide plates 72; a vertical plate 73 is provided on the bottom plate 71, and a limiting groove 74 for installing the knife pad 2 is formed between the vertical plate 73 and the bottom plate 71, and the slider 4 is movably arranged at the bottom of the limiting groove 74, and the switching drive assembly 6 is installed on one side of the guide plate 72, and the switching drive assembly 6 drives the knife pad 2 to move up and down in the limiting groove 74 through the slider 4 and the pulley 5.

[0032] It can be understood that, with such an arrangement, the bottom plate 71, the vertical plate 73 and the knife pad 2 are parallel to each other, and the vertical plates 73 are positioned on both sides of the knife pad 2 in the width direction and on both sides of the knife pad 2 in the length direction by guide blocks 75, so that the knife pad 2 can move up and down stably under the restrictions of the vertical plates 73, the bottom plate 71 and the guide blocks 75.

[0033] In order to ensure the stable movement of the slider 4, in this embodiment, reference Figure 4 The bottom plate 71 is provided with a guide block 75 , and the guide block 75 is slidably connected with the slider 4 .

[0034] It is understandable that, with such a configuration, the guide block 75 not only presses and guides the slider 4 to ensure stable movement of the slider 4 , but also plays a role in limiting the knife pad 2 .

[0035] In order to quickly drive the slider 4 to move, in this embodiment, reference Figure 3 and Figure 4 The switching drive assembly 6 includes a driving cylinder 61, a driving rod 62 and a connecting block 63. The driving cylinder 61 is installed on the outside of the guide plate 72. The driving end of the driving cylinder 61 is connected to the connecting block 63 through the driving rod 62. The connecting block 63 is fixedly connected to the slider 4. The driving cylinder 61 drives the slider 4 to move through the driving rod 62 and the connecting block 63; the slider 4 is provided with a limiting screw 64 on the other side opposite to the driving cylinder 61. The limiting screw 64 is installed on the guide plate 72, and the end face of the limiting screw 64 contacts the side wall of the slider 4.

[0036] It is understandable that, with such an arrangement, the slider 4 can be driven to move linearly quickly by driving the cylinder 61, and the slider 4 only moves linearly, which can ensure that the slider 4 moves stably and quickly, and the limiting screw 64 ensures that the slider 4 can move accurately into position.

[0037] In order to facilitate the setting of the height of the knife pad 2, in this embodiment, refer to Figure 4 The slider 4 is provided with a first step surface 43 , a mounting groove 41 is disposed on the first step surface 43 , a cushion block 42 is mounted on the mounting groove 41 , a second step surface 44 is provided on the cushion block 42 , and the second step surface 44 is higher than the first step surface 43 .

[0038] It can be understood that, with such a configuration, two step surfaces are formed by installing a pad 42 on the slider 4. Different sheets require different heights. By replacing the pad 42, the height of the second step surface 44 is ensured to match the required cutting height of the sheet. Replacing the pad 42 is more convenient, thereby reducing the time for adjusting the machine.

[0039] In order to gradually raise or lower the height of the pulley 5, in this embodiment, refer to Figure 4 The first step surface 43 and the second step surface 44 are both inclined surfaces.

[0040] It is understandable that, with such a configuration, the pulley 5 can be ensured to be gradually raised or lowered along the inclined surface through the cooperation between the inclined surface and the pulley 5, so as to stably adjust the height of the knife pad 2.

[0041] In order to ensure that the knife pad 2 and the slider 4 can cooperate better, in this embodiment, reference Figure 4 A groove 21 is provided on the lower end surface of the knife pad 2, the slider 4 is movably arranged in the groove 21, and the pulley 5 is installed in the groove 21 through the positioning shaft 51.

[0042] It is understandable that, with such a configuration, the slider 4 is located in the groove 21 to prevent the slider 4 from being separated from the tool pad 2, and the pulley 5 is installed in the groove 21 through the positioning shaft 51, so that the pulley 5 and the slider 4 can better cooperate, thereby stably adjusting the height of the tool pad 2.

[0043] refer to Figures 1 to 4 A jump cutting machine includes the above-mentioned jump cutting switching mechanism, the jump cutting switching mechanism is arranged below the jump cutting head 1, and the jump cutting head 1 is connected to the driving unit 8 in a transmission manner; the jump cutting head 1 is arranged above the frame 7 in a reciprocating manner through the driving unit 8, the knife pad 2 is installed on the frame 7 and is located below the jump cutting head 1, and the switching device 3 for adjusting the height of the knife pad 2 is installed on the frame 7 and is connected to the knife pad 2 in a transmission manner.

[0044] In order to drive the jump cutting machine head 1 to move, in this embodiment, reference Figure 2 and Figure 3 The driving unit 8 includes a driving motor 81 and a driving shaft 82 , the driving motor 81 is in transmission connection with the driving shaft 82 , an eccentric wheel 83 is provided on the driving shaft 82 , and a connecting rod 84 in transmission connection with the jump cutting machine head 1 is provided on the eccentric wheel 83 .

[0045] It needs to be further explained that the jump cutting machine head 1 includes a lifting plate 11, a connecting seat 12 and a cutter 13. The lifting plate 11 is transmission-connected to the connecting rod 84 and is movably installed between the two guide plates 72. The connecting seat 12 is installed on one side of the lifting plate 11, and the cutter 13 is fixed under the connecting seat 12.

[0046] It can be understood that, with such an arrangement, the drive motor 81 drives the gears on the drive shaft 82 to rotate through the belt, thereby driving the drive shaft 82 and the eccentric wheel 83 to rotate, and the eccentric wheel 83 drives the connecting rod 84 to swing up and down, thereby driving the jump cutting head 1 to move up and down, and the cutter 13 on the jump cutting head 1 moves up and down relative to the knife pad 2, so that the sheet material that the frame 7 moves to the knife pad 2 can be jump cut.

[0047] The jump-cut switching mechanism of this embodiment drives the knife pad 2 to move up and down by rolling the pulley 5 arranged at the knife pad 2 between the first step surface 43 and the second step surface 44 of the slider 4 at different heights, thereby quickly adjusting the height of the knife pad 2. The knife pad 2 is adjusted independently relative to the jump-cutting head 1, which will not interfere with the action of the jump-cutting head 1, thereby ensuring that the full-cut and half-cut switching can be stably realized without stopping the machine.

[0048] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A jump switching mechanism, characterized in that: It includes a knife pad and a switching device, wherein the knife pad is located above the switching device, and the switching device is transmission-connected with the knife pad; The switching device includes a slider, a pulley and a switching drive assembly. The slider is movably arranged on the tool holder through the switching drive assembly. The slider is provided with two adjacent step surfaces of different heights in the moving direction. The tool pad is located above the slider. The pulley is installed on the tool pad and cooperates with the two step surfaces. During the switching process between the full-break working condition and the half-break working condition of the jump cutter, the slider moves relative to the pulley driven by the switching drive assembly, and the pulley moving between the two step surfaces drives the tool pad to move between different heights.

2. The jump switching mechanism according to claim 1, characterized in that: A bottom plate is arranged below the knife pad, a vertical plate and a guide plate are arranged on the bottom plate, a limiting groove for installing the knife pad is formed between the vertical plate and the bottom plate, the slider is movably arranged at the bottom of the limiting groove, the switching drive assembly is installed on one side of the guide plate, and the switching drive assembly drives the knife pad to move up and down in the limiting groove through the slider and the pulley.

3. The jump switching mechanism according to claim 2, characterized in that: The bottom plate is provided with a guide block, and the guide block is slidably connected with the sliding block.

4. The jump switching mechanism according to claim 3, characterized in that: The switching drive assembly includes a driving cylinder, a driving rod and a connecting block, the driving cylinder is installed on the outside of the guide plate, the driving end of the driving cylinder is connected to the connecting block through the driving rod, the connecting block is fixedly connected to the slider, and the driving cylinder drives the slider to move through the driving rod and the connecting block; a limiting screw is provided on the other side of the slider opposite to the driving cylinder, the limiting screw is installed on the guide plate, and the end face of the limiting screw is in contact with the side wall of the slider.

5. The jump switching mechanism according to claim 1, characterized in that: The sliding block is provided with a first step surface, a mounting groove is counter-set on the first step surface, a cushion block is mounted on the mounting groove, a second step surface is provided on the cushion block, and the second step surface is higher than the first step surface.

6. The jump switching mechanism according to claim 5, characterized in that: The first step surface and the second step surface are both inclined surfaces.

7. The jump switching mechanism according to claim 1, characterized in that: The lower end surface of the knife pad is provided with a groove, the sliding block is movably arranged in the groove, and the pulley is installed in the groove through a positioning shaft.

8. A jump cutting machine, characterized in that: It comprises the jump cutting switching mechanism as described in any one of claims 1 to 7, wherein the jump cutting switching mechanism is arranged below the jump cutting machine head, and the jump cutting machine head is transmission-connected with a driving unit.

9. The jump cutter according to claim 8, characterized in that: The driving unit comprises a driving motor and a driving shaft, wherein the driving motor is drivingly connected to the driving shaft, an eccentric wheel is arranged on the driving shaft, and a connecting rod drivingly connected to the jump cutting machine head is arranged on the eccentric wheel.

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