Shearing device for quickly cutting off mask ear bands

Abstract

The shearing device comprises a cutting knife and a line roller which are arranged at the two ends of a workbench, a conveying belt driven by a first motor is arranged between the cutting knife and the line roller, and the two ends of the conveying belt are each provided with a second pressing roller driven by a second motor. The bottom face of the second pressing roller is in clearance fit with the top face of the conveying belt, a first support is arranged on the side, away from the cutting knife, of the conveying belt, the bottom of the first support is connected with a support in a lifting mode, a first pressing roller is rotationally connected into the support, and a plurality of annular grooves are formed in the outer wall of the first pressing roller in the axial direction. According to the ear belt shearing device, ear belts can be pressed in rows through the first pressing roller and the annular groove in the first pressing roller, winding of the ear belts can be further avoided through pressing and conveying of the conveying belt and the second pressing roller, the structure is simple, operation of workers is facilitated, winding of the ear belts in the shearing process can be effectively avoided, and the shearing efficiency of the ear belts is improved. And the shearing efficiency and quality are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mask shearing, in particular to a shearing device for quickly cutting mask ear straps. Background Art

[0002] A flat mask has a mask body and two ear straps, which are fixed on both sides of the mask piece respectively. The two ear straps are hung on the left and right ears and fix the mask body on the user's face and keep it restrained. The ear straps are generally ultrasonically welded to the mask body, and before welding, the ear straps need to be cut into fixed-length ear strap strips.

[0003] Existing shearing devices typically bundle multiple mask ear straps into a bundle and then transport them to a cutting blade for cutting. However, this method can easily lead to entanglement between the ear straps, resulting in inconsistent lengths and, consequently, inconsistent quality after the masks are formed. To address this issue, we propose a shearing device for quickly cutting mask ear straps. Utility Model Content

[0004] In view of the disadvantage that most existing shearing devices gather multiple mask ear straps into a bundle and then transport them to a cutting knife for cutting, the existing method easily causes the ear straps to be entangled, resulting in inconsistent lengths of the cut ear straps. The utility model provides a shearing device for quickly cutting mask ear straps, which has the advantages of effectively preventing the ear straps from winding during the shearing process, improving the shearing efficiency and quality, and solving the problems raised in the above-mentioned background technology.

[0005] The technical solution of the utility model is achieved as follows: a shearing device for quickly cutting the ear straps of masks, comprising a cutting knife and a wire roller arranged at both ends of a workbench, a conveyor belt driven by a first motor is provided between the cutting knife and the wire roller, and a second pressure roller driven by a second motor is provided at both ends of the conveyor belt, the bottom surface of the second pressure roller is gap-matched with the top surface of the conveyor belt, and a first bracket is provided on the side of the conveyor belt away from the cutting knife, the bottom of the first bracket is lifted and connected to the support, and the first pressure roller is rotatably connected in the support, and a plurality of annular grooves are provided on the outer wall of the first pressure roller along the axial direction.

[0006] Optionally, a first electric telescopic rod is connected between the first bracket and the support, and a first guide rod is vertically connected to the top of the support, and the top of the first guide rod passes through the first bracket.

[0007] Optionally, the end of the first pressing roller is coaxially connected to the limiting end plate, and a strip groove for accommodating the limiting end plate is opened at a corresponding position of the workbench.

[0008] Optionally, a first mounting seat is symmetrically provided on the top of the workbench along the conveyor belt, and the first mounting seat is connected to the workbench through a lifting mechanism, and the second pressure roller is rotatably connected between the two first mounting seats, the top of one of the first mounting seats is fastened to the second motor, and one end of the second pressure roller is fastened to the second motor.

[0009] Optionally, the lifting mechanism includes a second mounting seat fastened to the top of the workbench, a third electric telescopic rod is connected between the second mounting seat and the first mounting seat, and a second guide rod is connected between the second mounting seat and the workbench, and the second guide rod is arranged through the first mounting seat.

[0010] Optionally, a through slot is provided on the top of the workbench, a plurality of transport rollers are connected to the through slot via a rotating shaft, a transport belt is connected to the transport rollers, and the transport rollers at the ends are located directly below the second pressing roller;

[0011] An installation cavity is provided on the bottom surface of the workbench, the first motor is fastened in the installation cavity, and the rotating shaft at one end of the transport roller extends into the installation cavity and is connected to the first motor.

[0012] Optionally, a second bracket is fastened to the top of the workbench, the cutting knife is located below the second bracket and a second electric telescopic rod is connected between the two, the top of the cutting knife is connected to a third guide rod, and the upper end of the third guide rod passes through the second bracket.

[0013] Optionally, a bevel is provided on one end of the workbench close to the cutting blade.

[0014] Compared with the prior art, the first pressing roller and the annular groove thereon provided in the present invention can effectively press the ear bands in columns. At the same time, the first pressing roller that moves up and down can adjust the tension on the ear bands. The provided conveyor belt and the second pressing roller can further prevent the ear bands from being entangled and perform rapid cutting. The present invention not only has a simple structure but also effectively prevents the ear bands from being wound during the shearing process, thereby effectively improving the efficiency and quality of shearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 It is a schematic diagram of the bottom structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the connection between the second pressing roller and the first mounting seat of the utility model.

[0019] Figure 4 This is a schematic diagram of the connection between the first pressing roller and the first bracket of the utility model.

[0020] In the figure: 1. line roller; 2. transport roller; 3. inclined plane; 4. first motor; 5. first guide rod; 6. first bracket; 7. first pressure roller; 8. annular groove; 9. strip groove; 10. support; 11. limit end plate; 12. first electric telescopic rod; 13. second motor; 14. through groove; 15. transport belt; 16. second pressure roller; 17. second electric telescopic rod; 18. first mounting seat; 19. second guide rod; 20. third electric telescopic rod; 21. second mounting seat; 22. second bracket; 23. third guide rod; 24. cutting knife; 25. control box; 26. workbench; 27. mounting cavity. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solution of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Reference Figures 1 to 4 The utility model provides a technical solution: a shearing device for quickly cutting the ear straps of masks, comprising a cutting knife 24 and a wire roller 1 arranged at both ends of a workbench 26, a second bracket 22 being fastened to the top of the workbench 26, the cutting knife 24 being located below the second bracket 22 and a second electric telescopic rod 17 being connected therebetween, the top of the cutting knife 24 being connected to a third guide rod 23, the upper end of the third guide rod 23 being arranged through the second bracket 22, an inclined surface 3 being arranged at one end of the workbench 26 close to the cutting knife 24, as shown in FIG. Figure 1 As shown, the second electric telescopic rod 17 controls the lifting movement of the cutting knife 24 and cuts the ear band passing through, and the ear band cut by the cutting knife 24 falls on the inclined surface 3 and falls down. A storage container is placed below the inclined surface 3 to store the cut ear band.

[0023] like Figure 1 、 2As shown, in order to ensure the normal movement and transportation of the ear band, a conveyor belt 15 driven by a first motor 4 is provided between the cutting knife 24 and the wire roller 1, a through slot 14 is provided on the top of the workbench 26, and a plurality of conveyor rollers 2 are connected in the through slot 14 by a rotating shaft, the conveyor belt 15 is connected to the conveyor roller 2, and the conveyor roller 2 at the end is located directly below the second pressure roller 16, an installation cavity 27 is provided on the bottom surface of the workbench 26, the first motor 4 is fastened in the installation cavity 27, and the rotating shaft at one end of the conveyor roller 2 extends into the installation cavity 27 and is connected to the first motor 4.

[0024] like Figure 1 、 3 As shown, in order to achieve stable movement of the ear band and avoid entanglement between adjacent ear bands, second pressure rollers 16 driven by the second motor 13 are provided at both ends of the conveyor belt 15, and the bottom surface of the second pressure roller 16 is clearance-matched with the top surface of the conveyor belt 15. At the same time, first mounting seats 18 are symmetrically provided on the top of the workbench 26 along the conveyor belt 15, and the first mounting seats 18 are connected to the workbench 26 through a lifting mechanism. The second pressure roller 16 is rotatably connected between the two first mounting seats 18, and the top of one of the first mounting seats 18 is fastened to the second motor 13, and one end of the second pressure roller 16 is tightly connected to the second motor 13. The lifting mechanism includes a second mounting base 21 fastened to the top of the workbench 26, a third electric telescopic rod 20 is connected between the second mounting base 21 and the first mounting base 18, and a second guide rod 19 is connected between the second mounting base 21 and the workbench 26, and the second guide rod 19 is arranged through the first mounting base 18. When the ear band moves between the second pressure roller 16 and the conveyor belt 15, the staff controls the third electric telescopic rod 20 to drive the second pressure roller 16 to be raised and lowered according to the transportation status of the ear band, so that the distance between the second pressure roller 16 and the conveyor belt 15 is adjustable, thereby improving the practicality of the device.

[0025] To sum up, the shearing device for quickly cutting the ear straps of masks, when in use, the utility model also includes a control box 25 connected to the workbench 26, a controller is set in the control box 25, and the first electric telescopic rod 12, the second electric telescopic rod 17, the first motor 4, the second motor 13 are connected to the controller, and a first bracket 6 is set on the side of the conveyor belt 15 away from the cutting knife 24, the bottom of the first bracket 6 is connected to the support 10 for lifting, the first electric telescopic rod 12 is connected between the first bracket 6 and the support 10, and the first guide rod 5 is vertically connected to the top of the support 10, the top of the first guide rod 5 passes through the first bracket 6, and the first pressure roller 7 is rotatably connected in the support 10, and a plurality of annular grooves 8 are axially opened on the outer wall of the first pressure roller 7, and the end of the first pressure roller 7 is coaxially connected to the limiting end plate. 11, and a strip groove 9 for accommodating the limiting end plate 11 is opened at the corresponding position of the workbench 26, the free end of the ear band is removed from the line roller 1, and is passed around from the bottom of the first pressing roller 7, and is placed in the annular groove 8. Under the limiting action of the annular groove 8, the ear band can be prevented from winding. At the same time, the first electric telescopic rod 12 can push the first pressing roller 7 to move up and down, and the tension on the ear band can be adjusted, and the ear band can be passed between the conveyor belt 15 and the second pressing roller 16. Under the transportation and pressing action of the conveyor belt 15 and the second pressing roller 16, the ear band can be further prevented from being entangled and can be transported to the cutting knife 24 for rapid cutting. The utility model is not only simple in structure but also effectively prevents the ear band from winding during the shearing process, thereby effectively improving the shearing efficiency and quality.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shearing device for quickly cutting off the ear straps of a mask, comprising a cutting knife (24) and a wire roller (1) arranged at both ends of a workbench (26), characterized in that: A conveyor belt (15) driven by a first motor (4) is provided between the cutting blade (24) and the line roller (1), and second pressing rollers (16) driven by a second motor (13) are provided at both ends of the conveyor belt (15), and the bottom surface of the second pressing roller (16) is clearance-matched with the top surface of the conveyor belt (15); A first bracket (6) is provided on a side of the conveyor belt (15) away from the cutting blade (24); the bottom of the first bracket (6) is lifted and connected to the support (10); the support (10) is rotatably connected to the first pressing roller (7); and a plurality of annular grooves (8) are provided on the outer wall of the first pressing roller (7) along the axial direction.

2. The shearing device for quickly cutting the ear straps of a mask according to claim 1, characterized in that: A first electric telescopic rod (12) is connected between the first bracket (6) and the support (10), and a first guide rod (5) is vertically connected to the top of the support (10), and the top of the first guide rod (5) passes through the first bracket (6).

3. The shearing device for quickly cutting the ear straps of a mask according to claim 2, characterized in that: The end of the first pressing roller (7) is coaxially connected to the limiting end plate (11), and a strip groove (9) for accommodating the limiting end plate (11) is provided at a corresponding position of the workbench (26).

4. The shearing device for quickly cutting the ear straps of a mask according to claim 1, characterized in that: A first mounting seat (18) is symmetrically provided on the top of the workbench (26) along the conveyor belt (15), and the first mounting seat (18) is connected to the workbench (26) through a lifting mechanism. The second pressing roller (16) is rotatably connected between the two first mounting seats (18), the top of one of the first mounting seats (18) is fastened to the second motor (13), and one end of the second pressing roller (16) is fastened to the second motor (13).

5. The shearing device for quickly cutting the ear straps of a mask according to claim 4, characterized in that: The lifting mechanism comprises a second mounting seat (21) fastened to the top of a workbench (26); a third electric telescopic rod (20) is connected between the second mounting seat (21) and the first mounting seat (18); and a second guide rod (19) is connected between the second mounting seat (21) and the workbench (26); and the second guide rod (19) is arranged to pass through the first mounting seat (18).

6. The shearing device for quickly cutting the ear straps of a mask according to any one of claims 1 to 5, characterized in that: A through slot (14) is provided on the top of the workbench (26), a plurality of transport rollers (2) are connected to the through slot (14) via a rotating shaft, a transport belt (15) is connected to the transport rollers (2), and the transport rollers (2) at the end are located directly below the second pressing roller (16); A mounting cavity (27) is provided on the bottom surface of the workbench (26), the first motor (4) is fastened in the mounting cavity (27), and a rotating shaft at one end of the transport roller (2) extends into the mounting cavity (27) and is connected to the first motor (4).

7. The shearing device for quickly cutting the ear straps of a mask according to claim 6, characterized in that: The top of the workbench (26) is fastened to the second bracket (22), the cutting knife (24) is located below the second bracket (22) and the second electric telescopic rod (17) is connected between the two, the top of the cutting knife (24) is connected to the third guide rod (23), and the upper end of the third guide rod (23) passes through the second bracket (22).

8. The shearing device for quickly cutting the ear straps of a mask according to claim 7, characterized in that: An inclined surface (3) is provided at one end of the workbench (26) close to the cutting knife (24).

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