Eccentric wheel cutting machine

Abstract

The utility model discloses an eccentric wheel cutting machine, and particularly relates to the technical field of cutting machines, the eccentric wheel cutting machine comprises a cutting table, the cutting table extends upwards to form a plurality of polished shafts, the tops of the polished shafts are jointly connected with a top plate, all the polished shafts are vertically connected with a lifting table in a sliding mode, and a die cutting tool is installed at the bottom of the lifting table. An eccentric driving mechanism for driving the lifting table is mounted on a lower extension plate of the top plate; a follow-up stretching mechanism driven by the lifting table is mounted on the cutting table; the follow-up stretching mechanism comprises a one-way rack fixedly connected with the lifting table and penetrating through the cutting table, the one-way rack is meshed with a one-way rotating assembly, the one-way rotating assembly drives a first transmission wheel, a guide cylinder and a nail cylinder are rotationally installed at the bottom of the cutting table, and the nail cylinder is coaxially and fixedly connected with a second transmission wheel. According to the eccentric wheel cutting machine, due to the fact that the automatic feeding mechanism driven by the lifting table is arranged, mechanical equipment of a production line is reduced, and personnel arrangement of the production line is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of cutting machine technology, specifically relating to an eccentric wheel cutting machine. Background Technology

[0002] A cutting machine is a processing machine used in industrial production to cut various flexible materials. It is widely used in the processing of leather, textiles, paper, plastics, rubber, composite materials and other industries. It is mainly used to cut materials according to a pre-set shape or size.

[0003] Existing cutting machines require traction equipment or manual quantitative movement of the roll after cutting one section of material for the next cut, necessitating the installation of numerous machines or the deployment of many operators on the production line. Therefore, a new type of eccentric wheel cutting machine is needed. Utility Model Content

[0004] To solve the above problems, this utility model discloses an eccentric wheel cutting machine.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An eccentric wheel cutting machine includes a cutting table with several optical shafts extending upwards from it. The top of each optical shaft is connected to a top plate. All optical shafts are vertically slidably connected to a lifting platform, and a die-cutting cutter is installed at the bottom of the lifting platform. An eccentric drive mechanism for driving the lifting platform is installed on the lower extension plate of the top plate. A follow-up stretching mechanism driven by the lifting platform is installed on the cutting table. The follow-up stretching mechanism includes a one-way rack fixedly connected to and passing through the cutting table. The one-way rack meshes with a one-way rotating component, which drives a first transmission wheel. A guide cylinder and a nail cylinder are rotatably installed at the bottom of the cutting table. A second transmission wheel is coaxially fixedly connected to the nail cylinder. The first and second transmission wheels are jointly fitted with a transmission belt.

[0007] As a preferred embodiment of the present invention, the unidirectional rack includes: a rack seat fixedly connected to the lifting platform, wherein the rack seat is rotatably mounted with linearly uniformly arranged rotating teeth, and a bending spring is provided between each rotating tooth and the rack seat.

[0008] As a preferred embodiment of the present invention, the unidirectional rotating assembly includes: a unidirectional gear adapted to the rotating teeth, a concave wheel inserted into the shaft of the unidirectional gear, a limiting spring piece inserted into the unidirectional gear, and a central protrusion of the limiting spring piece adapted to the outer groove of the concave wheel.

[0009] As a preferred technical solution of this utility model, the one-way gear is coaxially and fixedly connected to the first transmission wheel.

[0010] As a preferred embodiment of this utility model, the annular groove of the nail tube is provided with a plurality of annularly distributed short needles, and the short needles are perpendicular to the axis of the nail tube.

[0011] As a preferred technical solution of this utility model, the eccentric drive mechanism includes: a drive motor fixedly installed on the lower extension plate of the top plate, an eccentric wheel fixedly connected to the output shaft of the drive motor, a connecting wheel rotatably connected to the eccentric wheel but not to the eccentric wheel, and the connecting wheel rotatably connected to the top of the lifting platform.

[0012] As a preferred embodiment of this utility model, a separation mechanism is installed at one end of the nail cylinder mounted on the cutting table.

[0013] In a preferred embodiment of this invention, the separating mechanism comprises: a plurality of round-headed columns that are horizontally slidably connected to the cutting table, and the round-headed columns are arranged linearly and uniformly. Each round-headed column is connected to a spring, and each spring is connected to the cutting table.

[0014] In a preferred embodiment of this invention, the diameter of the first transmission wheel is larger than the diameter of the second transmission wheel.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. When the lifting platform is raised after cutting, the rotating gear drives the one-way gear and the first transmission wheel to rotate together. The rotation angle between the first transmission wheel and the second transmission wheel is amplified, and the rotation angle of the nail cylinder, which is coaxially fixed to the second transmission wheel, is amplified. The short needles of the nail cylinder insert into the material roll and rotate to pull the material roll to move a certain distance, thereby completing the automatic quantitative feeding of the material roll. Thanks to the automatic feeding mechanism set by the lifting platform drive, the mechanical equipment installed on the production line is reduced, as is the personnel layout on the production line.

[0017] Second, the material roll moves to the separation mechanism, where the cut sheet is separated from the material roll under the elastic compression of multiple round-headed columns. Thanks to the separation mechanism, the separation process between the sheet and the material roll is simplified, and production efficiency is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure from another angle of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the follow-up stretching mechanism and the material roll according to an embodiment of the present invention;

[0021] Figure 4This is a schematic diagram of the structure of the unidirectional rack and unidirectional rotation assembly according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the concave wheel and the limiting spring in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the rack seat structure according to an embodiment of the present utility model;

[0024] Figure 7 This is an embodiment of the present utility model. Figure 6 Enlarged view of point A in the middle;

[0025] Figure 8 This is a schematic diagram of the rotating tooth and bending spring in an embodiment of the present invention;

[0026] Figure 9 This is an exploded view of the cutting table and separation mechanism according to an embodiment of the present utility model;

[0027] Figure 10 This is a schematic diagram of the eccentric wheel drive mechanism, lifting platform, and die-cutting tool according to an embodiment of the present invention;

[0028] Figure 11 This is an exploded view of the eccentric wheel drive mechanism, lifting platform, and die-cutting tool according to an embodiment of this utility model.

[0029] List of identifiers in attached diagrams:

[0030] 1. Cutting table; 2. Optical axis; 3. Top plate;

[0031] 4. Eccentric drive mechanism; 41. Drive motor; 42. Eccentric wheel; 43. Connecting wheel;

[0032] 5. Lifting platform; 6. Die-cutting cutter;

[0033] 7. Follow-up tensioning mechanism; 71. One-way rack; 711. Rack seat; 712. Rotating gear; 713. Bending spring; 72. One-way rotation assembly; 721. One-way gear; 722. Concave wheel; 723. Limiting spring; 73. First transmission wheel; 74. Second transmission wheel; 75. Transmission belt; 76. Guide cylinder; 77. Nail cylinder;

[0034] 8. Material rolls;

[0035] 9. Separation mechanism; 91. Round head column; 92. Spring;

[0036] 10. Support column. Detailed Implementation

[0037] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0038] Please see Figure 1-11 An eccentric wheel cutting machine includes a cutting table 1. A support column 10 for fixing extends downwards from each of the four corners of the cutting table 1. Several optical shafts 2 extend upwards from the cutting table 1, and the tops of the optical shafts 2 are connected to a top plate 3. In the embodiment shown in the attached drawings, each of the four corners of the cutting table 1 has an optical shaft 2. All optical shafts 2 are vertically slidably connected to a lifting platform 5, and a die-cutting cutter 6 is installed at the bottom of the lifting platform 5. The top of the die-cutting cutter 6 is wedge-shaped, and the die-cutting cutter 6 is horizontally inserted into the bottom of the lifting platform 5. The die-cutting cutter 6 and the lifting platform 5 are fixed together by bolts that pass through the lifting platform 5 and are screwed onto the die-cutting cutter 6. An eccentric drive mechanism 4 for driving the lifting platform 5 is installed on the lower extension plate of the top plate 3. The eccentric drive mechanism 4 drives the lifting platform 5 and the die-cutting cutter 6 to reciprocate. A follow-up stretching mechanism 7 driven by the lifting platform 5 is installed on the cutting table 1. A material roll 8 is laid flat on the cutting table 1, and the material roll 8 is installed in the follow-up stretching mechanism 7 as shown in the attached drawings. The bottom end of material roll 8 is always straightened by external equipment, and the external equipment does not actively pull material roll 8 to move.

[0039] The eccentric drive mechanism 4 includes a drive motor 41 fixedly mounted on the lower extension plate of the top plate 3. The output shaft of the drive motor 41 is fixedly connected to an eccentric wheel 42, and the eccentric wheel 42 is rotatably connected to a connecting wheel 43 that is not on the same axis as the eccentric wheel 42. The connecting wheel 43 is rotatably connected to the top of the lifting platform 5.

[0040] The follow-up stretching mechanism 7 includes a one-way rack 71 fixedly connected to the lifting platform 5 and passing through the cutting table 1. The one-way rack 71 is engaged with a one-way rotating component 72, which can only be driven when the one-way rack 71 moves upward. The one-way rotating component 72 drives a first transmission wheel 73. A guide cylinder 76 and a nail cylinder 77 are rotatably mounted on the bottom of the cutting table 1, and a second transmission wheel 74 is coaxially fixedly connected to the nail cylinder 77. The first transmission wheel 73 and the second transmission wheel 74 are jointly fitted with a transmission belt 75. Several annularly distributed short needles are arranged in the annular groove of the nail cylinder 77, and the short needles are perpendicular to the axis of the nail cylinder 77. The short needles of the nail cylinder 77 are used to temporarily insert into the material roll 8 to pull the material roll 8 to move. The diameter of the first transmission wheel 73 is larger than the diameter of the second transmission wheel 74, which is used to amplify the rotation angle of the first transmission wheel 73 and increase the rotation angle of the nail cylinder 77.

[0041] The one-way rack 71 includes a rack seat 711 fixedly connected to the lifting platform 5. The rack seat 711 is rotatably mounted with linearly and uniformly arranged rotating teeth 712, and a curved spring 713 is provided between each rotating tooth 712 and the rack seat 711. The included angle between the rotating tooth 712 and the rack seat 711 is within the range of zero to sixty degrees. Under the elastic force of the curved spring 713, the rotating teeth 712 naturally open. When the rotating tooth 712 moves downward and encounters the one-way gear 721, the one-way gear 721 is fixed, and the rotating tooth 712 rotates to avoid it. When the rotating tooth 712 moves upward and encounters the one-way gear 721, the rotating tooth 712 drives the one-way gear 721 to rotate.

[0042] The one-way rotating assembly 72 includes a one-way gear 721 adapted to the rotating tooth 712. A concave wheel 722 is rotatably inserted into the shaft of the one-way gear 721, and the outer wall of the concave wheel 722 is provided with evenly distributed strip-shaped external grooves. A limiting spring 723 is inserted into the one-way gear 721, and the central protrusion of the limiting spring 723 adapts to the external groove of the concave wheel 722. When the rotating tooth 712 moves downwards and encounters the one-way gear 721, the one-way gear 721 is fixed because the central protrusion of the limiting spring 723 engages with the external groove of the concave wheel 722 and the rotating tooth 712 can rotate. When the rotating tooth 712 moves upwards and encounters the one-way gear 721, although the central protrusion of the limiting spring 723 engages with the external groove of the concave wheel 722, the rotating tooth 712 cannot rotate. Therefore, the rotating tooth 712 forcibly drives the one-way gear 721 to rotate, and the central protrusion of the limiting spring 723 undergoes elastic deformation. One-way gear 721 is coaxially and fixedly connected to the first transmission wheel 73. When one-way gear 721 rotates, the first transmission wheel 73 rotates together.

[0043] A separation mechanism 9 is installed at one end of the nail cylinder 77 mounted on the cutting table 1. The separation mechanism 9 includes several round-headed columns 91 that are horizontally slidably connected to the cutting table 1, and the round-headed columns 91 are arranged linearly and evenly. Each round-headed column 91 is connected to a spring 92, and the springs 92 are all connected to the cutting table 1. When the material roll 8 moves to the separation mechanism 9, the cut sheet is separated from the material roll 8 under the elastic compression of the multiple round-headed columns 91.

[0044] Working principle:

[0045] In use, the material roll 8 is laid flat on the cutting table 1, and the material roll 8 is installed in the follow-up stretching mechanism 7 as shown in the attached figure. Then, the drive motor 41 drives the eccentric wheel 42 to rotate. Under the rotation connection of the connecting wheel 43, the lifting table 5 and the die-cutting cutter 6 descend to cut the material roll 8 on the cutting table 1. After the cutting is completed, when the lifting table 5 rises, the rotating gear 712 drives the one-way gear 721 and the first transmission wheel 73 to rotate together. The rotation angle between the first transmission wheel 73 and the second transmission wheel 74 is amplified, and the rotation angle of the nail cylinder 77, which is coaxially fixed to the second transmission wheel 74, increases. The short needles of the nail cylinder 77 are inserted into the material roll 8 and rotate to pull the material roll 8 to move a certain distance, thereby completing the automatic quantitative feeding of the material roll 8.

[0046] Since the bottom end of the material roll 8 is always straightened by the external device, and the external device does not actively pull the material roll 8 to move, the moving material roll 8 will be stretched and detached from the short needle after being inserted and rotated by the short needle of the nail cylinder 77, and will not be wrapped around the nail cylinder 77.

[0047] When the material roll 8 passes over the separation mechanism 9 at the end of the cutting table 1, the cut sheet separates from the material roll 8 under the elastic compression of multiple round-headed columns 91.

[0048] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. An eccentric cutting machine comprising a cutting table (1), characterized in that, The cutting table (1) extends upwardly with several optical axes (2), and the top of the optical axes (2) is connected with a top plate (3), all the optical axes (2) are vertically and slidingly connected with a lifting table (5), and the bottom of the lifting table (5) is provided with a die cutting tool (6), the lower extension plate of the top plate (3) is provided with an eccentric drive mechanism (4) for driving the lifting table (5), and the cutting table (1) is provided with a follow-up stretching mechanism (7) driven by the lifting table (5); the follow-up stretching mechanism (7) comprises: a one-way rack (71) fixedly connected with the lifting table (5) and penetrating through the cutting table (1), the one-way rack (71) is engaged with a one-way rotation assembly (72), the one-way rotation assembly (72) is driven by a first transmission wheel (73), the cutting table (1) is rotatably provided with a guide cylinder (76) and a pin cylinder (77) at the bottom, the pin cylinder (77) is coaxially and fixedly connected with a second transmission wheel (74), and the first transmission wheel (73) and the second transmission wheel (74) are jointly provided with a transmission belt (75).

2. The eccentric cutting machine according to claim 1, wherein The one-way rack (71) comprises: a rack seat (711) fixedly connected with the lifting table (5), and a plurality of rotating teeth (712) arranged in a linear and uniform manner are rotatably arranged on the rack seat (711), and a bending elastic sheet (713) is arranged between each rotating tooth (712) and the rack seat (711).

3. A cam cutter according to claim 2, wherein The one-way rotation assembly (72) comprises: a one-way gear (721) matched with the rotating tooth (712), a concave wheel (722) is rotatably inserted into the one-way gear (721), the one-way gear (721) is inserted with a limiting elastic sheet (723), and the middle protrusion of the limiting elastic sheet (723) is matched with the outer groove of the concave wheel (722).

4. The eccentric cutting machine according to claim 3, wherein The one-way gear (721) is coaxially and fixedly connected with the first transmission wheel (73).

5. The eccentric cutting machine of claim 1, wherein A plurality of annular and uniformly distributed short needles are arranged in the annular groove of the pin cylinder (77), and the short needles are perpendicular to the axis of the pin cylinder (77).

6. The eccentric cutting machine of claim 1, wherein The eccentric drive mechanism (4) comprises: a driving motor (41) fixedly installed on the lower extension plate of the top plate (3), an eccentric wheel (42) is fixedly connected with the output shaft of the driving motor (41), a connecting wheel (43) is rotatably connected with the eccentric wheel (42) and is differentially axially arranged, and the connecting wheel (43) is rotatably connected with the top of the lifting table (5).

7. The eccentric cutting machine of claim 1, wherein The pin cylinder (77) installed on the cutting table (1) is provided at one end with a separation mechanism (9).

8. The eccentric cutting machine of claim 7, wherein, The separation mechanism (9) comprises: a plurality of round head columns (91) horizontally and slidingly connected with the cutting table (1), and the round head columns (91) are linearly and uniformly arranged, each round head column (91) is connected with a spring (92), and the spring (92) is connected with the cutting table (1).

9. The eccentric cutting machine of claim 1, wherein, The diameter of the first transmission wheel (73) is greater than the diameter of the second transmission wheel (74).

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