Leather pulling and cutting device for earphone leather sheath production

Abstract

The utility model relates to the technical field of earphone leather sheath production, in particular to a leather pulling and cutting device for earphone leather sheath production, which comprises a base, a bracket is fixed at the bottom of the base, and a plurality of positioning rods are arranged between the base and the bracket in a penetrating manner; two connecting pieces are fixed to the top of the ring body and fixed to the lifting plate, and a ring cutter is coaxially fixed to the bottom end of the ring body. According to the earphone leather sheath cutting device, a cutting leather material of an earphone leather sheath can be positioned through the arranged positioning rod, the electric cylinder drives the cutting part to descend, the pressing plate can press and fix the leather material, and therefore the leather material is limited, and redundant skirt edges at the edge of the leather material can be cut after an annular cutter falls down; according to the design, when the skirt edge at the edge of the earphone leather sheath is cut, workers do not need to cut manually, operation convenience is improved, manpower is saved, a plurality of earphone leather sheaths can be cut at the same time, and the processing efficiency of the earphone leather sheaths is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of earphone leather cover production, in particular to a leather pulling and cutting device for earphone leather cover production. Background Art

[0002] Headphone leather covers refer to a type of earmuffs with leather surface. They are mainly used to relieve the pressure on the human head when wearing headphones. They also have the functions of dirt resistance, sound quality optimization, comfort and product beautification. In the processing of headphone leather covers, the leather needs to be cut into a specific shape to facilitate the headphone leather cover to be put on the headphone later.

[0003] The utility model patent with the authorization announcement number CN209218405U discloses a cutting jig for lifting the leather case of an earphone, which comprises a bottom plate, a panel, a shaping cutting frame, a pressing block, a skirt pressing ring and a pressing plate. The panel is fixedly arranged above the bottom plate by a guide column. The panel has a mounting hole for mounting the shaping cutting frame. The periphery of the mounting hole has an annular groove for mounting the skirt pressing ring. The shaping cutting frame is an upper The open cavity has a blade at the open part, and a positioning pin extending vertically upward at the bottom for fixing the leather material; the pressure block is installed in the shaping and cutting frame and is loosely matched with it, and the pressure block is provided with a through hole for avoiding the positioning pin; the pressure plate is hinged to one side of the panel to achieve contact or separation between the pressure plate and the panel surface, and the pressure plate is also provided with an air avoidance hole matching the skirt pressure ring, and when the pressure plate contacts the panel surface, the air avoidance hole is sleeved on the outer periphery of the skirt pressure ring. By providing a skirt pressure ring matching the shaping and cutting frame, the skirt of the leather cloth is fixed, and the excess skirt is cut off while hot pressing in cooperation with the blade set at the opening of the shaping and cutting frame, and one jig simultaneously realizes the operations of shaping and cutting the skirt, thereby improving the processing efficiency of the leather cloth.

[0004] Although the leather-pulling and cutting jig of the headphone leather case improves the processing efficiency of leather cloth, the device has the following problems in actual use: on the one hand, the device needs manual operation when cutting the skirt, which is not only time-consuming and laborious, but also the blade is easy to accidentally injure the staff; on the other hand, the device can only cut the skirt of a single leather material at the same time, so the processing efficiency of the leather material is low, which affects the processing efficiency of the headphone leather case. In view of this, we propose a leather-pulling and cutting device for the production of headphone leather cases. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the utility model is to provide a leather lifting and cutting device for producing earphone leather covers, in which the cutting part is driven down by an electric cylinder, and the pressing plate can press and fix the leather material, thereby limiting the position of the leather material, and the circular cutting knife can cut the excess skirt at the edge of the leather material after it falls down.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A leather lifting and cutting device for producing earphone leather covers, comprising a base, a bracket fixed at the bottom of the base, a plurality of positioning rods passing through the base and the bracket, the positioning rods passing through the base and the bracket, and the top ends of the positioning rods protruding above the base, a limiting ring coaxially fixed on the positioning rods, a first spring also sleeved on the positioning rods, and the two ends of the first spring respectively press against the bracket and the limiting ring; a fixing frame is installed on the top of the base, two electric cylinders are installed on the top of the fixing frame, and a lifting plate is fixed between the ends of the piston rods of the two electric cylinders; a plurality of cutting grooves are also opened on the top surface of the base, and the cutting grooves are concentrically arranged with the positioning rods;

[0008] A plurality of cutting parts are installed at the bottom of the lifting plate; the cutting part comprises a ring body with an opening at the bottom, two connecting plates are fixed on the top of the ring body, and the connecting plates are fixed to the lifting plate, and a ring cutting knife is coaxially fixed at the bottom end of the ring body; a connecting shaft is installed in the bottom opening of the ring body, a fixed shaft is coaxially fixed on the top end of the connecting shaft, the fixed shaft passes through the top of the ring body, a second spring is sleeved on the fixed shaft, and the two ends of the second spring are respectively pressed against the connecting shaft and the inner top of the ring body, and a pressure plate is coaxially fixed to the bottom end of the connecting shaft.

[0009] In addition, the leather-lifting and cutting device for producing the earphone leather cover according to the application may also have the following additional technical features:

[0010] Specifically, a limiting block is coaxially fixed to the top end of the fixed shaft, and the diameter of the limiting block is greater than the diameter of the fixed shaft.

[0011] Specifically, the cross-section of the pressing plate is circular, and the diameter of the pressing plate is smaller than the bottom opening diameter of the ring body.

[0012] Specifically, the ring body, the connecting piece and the ring cutting knife are an integrally formed structure, and the ring body, the connecting piece and the ring cutting knife are all made of galvanized steel.

[0013] Specifically, the inner walls on both sides of the fixing frame are fixedly connected with guide rails by bolts, and both ends of the lifting plate are provided with guide grooves slidably connected with the guide rails.

[0014] Specifically, the annular cutting knife and the cutting groove are located on the same vertical plane, and the pressing plate and the positioning rod are located on the same vertical plane.

[0015] Specifically, the pressing plate is a product made of rubber material, and the pressing plate is fixedly connected to the connecting shaft by bolts.

[0016] Specifically, the overall shape of the fixing frame is U-shaped, and the fixing frame is fixedly connected to the base by bolts.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The cut leather of the headphone leather case can be positioned by the provided positioning rod, and the cutting part is driven down by the electric cylinder, so that the pressing plate can press and fix the leather, thereby limiting the leather, and the excess skirt at the edge of the leather can be cut after the circular cutting knife falls down; when cutting the skirt at the edge of the headphone leather case, this design not only eliminates the need for manual cutting by the staff, thereby improving the operational convenience and saving manpower, but also allows cutting of multiple headphone leather cases at the same time, thereby improving the processing efficiency of the headphone leather cases. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a partial structural cross-sectional view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the cutting part in the utility model;

[0022] Figure 4 It is a schematic diagram of the exploded structure of the cutting part in the utility model;

[0023] Figure 5 It is a structural cross-sectional view of the cutting portion in the utility model.

[0024] In the figure:

[0025] 1. Base; 10. Support; 11. Bracket; 12. Positioning rod; 13. Limiting ring; 14. First spring; 15. Fixing frame; 151. Guide rail; 16. Electric cylinder; 17. Lifting plate; 18. Cutting groove;

[0026] 2. Cutting part; 20. Ring body; 21. Connecting piece; 22. Ring cutting knife; 23. Connecting shaft; 24. Fixed shaft; 241. Limiting block; 25. Second spring; 26. Pressing plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] This embodiment provides a technical solution:

[0029] See also Figure 1-Figure 5 As shown, a headphone leather case production skin-lifting and cutting device comprises a base 1, a bracket 11 is fixed at the bottom of the base 1, a plurality of positioning rods 12 are passed through the base 1 and the bracket 11, the positioning rods 12 pass through the base 1 and the bracket 11, and the top of the positioning rods 12 protrudes above the base 1, a limiting ring 13 is coaxially fixed on the positioning rods 12, a first spring 14 is also sleeved on the positioning rods 12, and the two ends of the first spring 14 are respectively pressed against the bracket 11 and the limiting ring 13; a fixing frame 15 is installed on the top of the base 1, two electric cylinders 16 are installed on the top of the fixing frame 15, and a lifting plate 17 is fixed between the ends of the piston rods of the two electric cylinders 16; a plurality of A cutting groove 18 is arranged concentrically with the positioning rod 12; a plurality of cutting parts 2 are installed at the bottom of the lifting plate 17; the cutting part 2 includes a ring body 20 with an opening at the bottom, two connecting pieces 21 are fixed on the top of the ring body 20, and the connecting pieces 21 are fixed to the lifting plate 17, and a ring cutting knife 22 is coaxially fixed to the bottom end of the ring body 20; a connecting shaft 23 is installed in the bottom opening of the ring body 20, a fixed shaft 24 is coaxially fixed to the top end of the connecting shaft 23, the fixed shaft 24 passes through the top of the ring body 20, a second spring 25 is sleeved on the fixed shaft 24, and the two ends of the second spring 25 are respectively pressed against the connecting shaft 23 and the inner top of the ring body 20, and a pressing plate 26 is coaxially fixed to the bottom end of the connecting shaft 23.

[0030] In this embodiment, a limit block 241 is coaxially fixed to the top of the fixed shaft 24, and the diameter of the limit block 241 is larger than the diameter of the fixed shaft 24. The limit block 241 limits the fixed shaft 24 and prevents the fixed shaft 24 from detaching from the ring body 20.

[0031] In this embodiment, the cross-section of the pressing plate 26 is circular, and the diameter of the pressing plate 26 is smaller than the bottom opening diameter of the ring body 20. This design facilitates the pressing plate 26 to be retracted into the bottom opening of the ring body 20, thereby facilitating the circular cutting knife 22 to cut the leather.

[0032] In this embodiment, the ring body 20, the connecting piece 21 and the ring cutting knife 22 are an integrally formed structure, and the ring body 20, the connecting piece 21 and the ring cutting knife 22 are all made of galvanized steel. The integrally formed ring body 20, the connecting piece 21 and the ring cutting knife 22 have better structural strength, ensuring the connection reliability of the ring body 20, the connecting piece 21 and the ring cutting knife 22, and the galvanized steel material has the advantages of corrosion resistance and high strength, and is more suitable.

[0033] In this embodiment, the inner walls on both sides of the fixing frame 15 are fixedly connected with guide rails 151 by bolts, and the two ends of the lifting plate 17 are provided with guide grooves slidably connected with the guide rails 151. The setting of the guide rails 151 and the guide grooves guides the lifting and lowering movement of the lifting plate 17, ensuring the stability and smoothness of the lifting plate 17.

[0034] In this embodiment, the circular cutting knife 22 and the cutting groove 18 are located on the same vertical plane, and the pressing plate 26 and the positioning rod 12 are located on the same vertical plane. This design facilitates the pressing plate 26 to press the positioning rod 12 to fix the leather material, and facilitates the circular cutting knife 22 to cut the skirt of the leather material.

[0035] In this embodiment, the pressing plate 26 is made of rubber material, and the pressing plate 26 is fixedly connected to the connecting shaft 23 by bolts. The pressing plate 26 made of rubber material can not only improve the fixing effect on the leather material, but also prevent the pressing plate 26 from causing damage to the leather material.

[0036] In this embodiment, the overall shape of the fixing frame 15 is U-shaped, and the fixing frame 15 is fixedly connected to the base 1 by bolts. The bolt fixing method ensures the installation stability and reliability of the fixing frame 15, and is convenient for the disassembly and assembly of the fixing frame 15.

[0037] It should be added that the bottom of the base 1 in this embodiment is fixedly connected with two supports 10 by bolts. The arrangement of the supports 10 provides stable support for the device, ensures the stability of the base 1, and ensures stability during the cutting process.

[0038] It is worth noting that the electric cylinder 16 involved in this embodiment is an existing conventional technology and will not be described in detail here.

[0039] During specific use, the user first aligns the holes on the leather with the positioning rod 12 in turn and inserts them, so that the leather is placed on the positioning rod 12. Then the user turns on the power of the electric cylinder 16, and the electric cylinder 16 starts to work. The piston rod of the electric cylinder 16 extends and drives the lifting plate 17 to move downward, and the lifting plate 17 drives multiple ring bodies 20 to move downward. When the pressing plate 26 presses against the positioning rod 12, the positioning rod 12 is subjected to force and moves downward, and the first spring 14 is compressed. When the pressing plate 26 presses against the leather, the ring body 20 moves downward. At this time, the second spring 25 is compressed. When the ring body 20 moves downward, the circular cutting knife 22 moves downward and cuts the skirt around the leather. When the circular cutting knife 22 is inserted into the cutting groove 18, the skirt of the leather is cut.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cutting device for producing earphone leather covers, comprising a base (1), characterized in that: A bracket (11) is fixed at the bottom of the base (1), and a plurality of positioning rods (12) are arranged between the base (1) and the bracket (11). The positioning rods (12) pass through the base (1) and the bracket (11), and the top ends of the positioning rods (12) protrude above the base (1). A limiting ring (13) is coaxially fixed on the positioning rods (12), and a first spring (14) is also sleeved on the positioning rods (12), and the two ends of the first spring (14) are respectively pressed against the bracket (11) and the limiting ring (13); a fixing frame (15) is installed at the top of the base (1), and two electric cylinders (16) are installed at the top of the fixing frame (15), and a lifting plate (17) is fixed between the ends of the piston rods of the two electric cylinders (16); a plurality of grooves (18) are also opened on the top surface of the base (1), and the grooves (18) are arranged concentrically with the positioning rods (12); A plurality of cutting parts (2) are installed at the bottom of the lifting plate (17); the cutting part (2) comprises a ring body (20) with an opening at the bottom, two connecting pieces (21) are fixed at the top of the ring body (20), and the connecting pieces (21) are fixed to the lifting plate (17), and a ring cutter (22) is coaxially fixed at the bottom end of the ring body (20); a connecting shaft (23) is installed in the bottom opening of the ring body (20), a fixed shaft (24) is coaxially fixed at the top end of the connecting shaft (23), the fixed shaft (24) passes through the top of the ring body (20), a second spring (25) is sleeved on the fixed shaft (24), and two ends of the second spring (25) are respectively pressed against the connecting shaft (23) and the inner top of the ring body (20), and a pressing plate (26) is coaxially fixed at the bottom end of the connecting shaft (23).

2. The lifting and cutting device for producing earphone leather covers according to claim 1, characterized in that: A limiting block (241) is coaxially fixed to the top end of the fixed shaft (24), and the diameter of the limiting block (241) is greater than the diameter of the fixed shaft (24).

3. The lifting and cutting device for producing earphone leather covers according to claim 1, characterized in that: The cross-sectional shape of the pressing plate (26) is circular, and the diameter of the pressing plate (26) is smaller than the bottom opening diameter of the ring body (20).

4. The lifting and cutting device for producing earphone leather covers according to claim 1, characterized in that: The ring body (20), the connecting piece (21) and the ring cutting knife (22) are an integrally formed structure, and the ring body (20), the connecting piece (21) and the ring cutting knife (22) are all manufactured products made of galvanized steel.

5. The lifting and cutting device for producing earphone leather covers according to claim 1, characterized in that: The inner walls on both sides of the fixing frame (15) are fixedly connected with guide rails (151) by means of bolts, and guide grooves slidably connected with the guide rails (151) are provided at both ends of the lifting plate (17).

6. The lifting and cutting device for producing earphone leather covers according to claim 1, characterized in that: The annular cutting knife (22) and the cutting groove (18) are located on the same vertical plane, and the pressing plate (26) and the positioning rod (12) are located on the same vertical plane.

7. The lifting and cutting device for producing earphone leather covers according to claim 1, characterized in that: The pressing plate (26) is a product made of rubber material, and the pressing plate (26) is fixedly connected to the connecting shaft (23) via bolts.

8. The lifting and cutting device for producing earphone leather covers according to claim 1, characterized in that: The overall shape of the fixing frame (15) is U-shaped, and the fixing frame (15) is fixedly connected to the base (1) via bolts.

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