Turnover structure for a cylinder sewing machine

Abstract

The application provides a turnover structure of a cylinder sewing machine and belongs to the technical field of cylinder sewing machines. The turnover structure solves the problem of the inconvenience of debugging and maintenance of the existing cylinder sewing machine. The cylinder sewing machine comprises a base and a main body arranged on the base. The turnover structure comprises a tilting plate. The main body and the base are hingedly connected at the back. The tilting plate is provided with a sliding hole in the shape of a long strip. The hole wall of the sliding hole is provided with at least one limiting wall. The tail of the main body is fixedly connected with a sliding pin. The bottom of the tilting plate is hingedly connected with the tail of the base. The sliding pin is arranged in the sliding hole. When the main body rotates relative to the base, the tilting plate rotates around the hinge point thereof and the sliding pin moves along the sliding hole. When the sliding pin abuts against the limiting wall, the base pulls the main body through the tilting plate and the sliding pin to make the main body tilt and be positioned. When the main body abuts against the base, the main body and the base can be fixedly connected through a locking piece. The turnover structure of the cylinder sewing machine has the advantage of facilitating the debugging and maintenance of the cylinder sewing machine.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of barrel sewing machine, and relates to a turnover structure of a barrel sewing machine. BACKGROUND

[0002] The barrel sewing machine is an industrial sewing equipment specially designed for sewing cylindrical or tubular fabrics (such as cuffs, pant legs, socks, gloves, hats, etc.). It can efficiently handle sewing tasks in curved surfaces and narrow spaces, and is suitable for clothing, hats and shoes, home textiles, leather products and automotive interiors, etc.

[0003] The existing barrel sewing machine, for example, a barrel double-needle sewing machine [Patent No. 202120837072.7; Application Publication No. CN215517953U] disclosed in Chinese patent document, comprises a main body, a fixed seat is arranged at the bottom of the main body, a base is fixed at the bottom end of the main body, a plurality of mounting holes are formed on the surface of the base, a placing groove is formed on the top of each mounting hole corresponding to the inner side of the base, a protective seat is arranged on the inner side of the placing groove, a horizontal rod is penetrated through one side of the protective seat and one side of the placing groove, a limiting groove is formed in the other side of the protective seat, a rotating block is arranged on the inner side of the limiting groove, rotating grooves are symmetrically formed on both ends of the rotating block, limiting columns are arranged on the inner sides of the symmetrically arranged rotating grooves, one end of each limiting column is connected with one end of the rotating groove through a thread, and the other end of each limiting column is penetrated into the inner side of the base.

[0004] The sewing machine with the above structure is fixed by bolts between the main body and the base. When the internal part of the sewing machine needs to be adjusted and repaired, the bolts need to be loosened, the main body needs to be removed and placed on the workbench, the main body and the base need to be separated, and then the adjustment and repair can be carried out. After the adjustment and repair are completed, the main body needs to be lifted and placed on the base, and then the bolts need to be tightened to complete the assembly. It is time-consuming, laborious and troublesome to operate. SUMMARY

[0005] The present application aims to solve the above problems in the prior art and provides a turnover structure of a barrel sewing machine. The technical problem to be solved is how to make the barrel sewing machine convenient to adjust and repair.

[0006] The purpose of the present application can be achieved by the following technical solutions: a turnover structure of a cylinder sewing machine, the sewing machine comprising a base and a main body arranged on the base, characterized in that the turnover structure comprises a tilting plate, the main body and the base are hinged at the back, the tilting plate has a sliding hole in the shape of a long strip, the hole wall of the sliding hole has at least one limiting wall, the tail of the main body is fixedly connected with a sliding pin, the bottom of the tilting plate is hinged with the tail of the base, the sliding pin is arranged in the sliding hole, when the main body rotates relative to the base, the tilting plate rotates around its hinge point and the sliding pin moves along the sliding hole, when the sliding pin abuts against the limiting wall, the base pulls the main body through the tilting plate and the sliding pin to make the main body tilt and be positioned, when the main body abuts against the base, the main body and the base can be fixedly connected through a locking member.

[0007] When the cylinder sewing machine is normally used, the main body abuts against the base by using its own gravity, the main body and the base are detachably connected through the locking member, that is, the main body is fixedly connected to the base through the locking member. When it is necessary to debug and maintain the sewing machine, the locking member is disassembled, the main body and the base are no longer fixedly connected, the operator pushes the main body to rotate around the base, at this time, the tilting plate rotates around its hinge point and the sliding pin moves along the sliding hole, until the sliding pin abuts against the limiting wall, at this time, the base pulls the main body through the tilting plate and the sliding pin to make the main body turn over relative to the base, then the main body is arranged to tilt relative to the base and is positioned, the operator can debug and maintain the parts inside the main body and the base, after the debugging and maintenance are completed, the operator pushes the main body to reversely rotate around the base, the tilting plate reversely rotates around its hinge point and the sliding pin reversely moves along the sliding hole, until the main body abuts against the base, finally, the main body and the base are detachably connected through the locking member. The present cylinder sewing machine makes the main body turn over and be positioned relative to the base, and makes the main body and the base always connected together, without the need to separately take down the main body and place it on a workbench, avoiding the trouble of lifting the main body, and making the main body at the best angle for debugging and maintenance, thereby making the cylinder sewing machine convenient to debug and maintain. The back of the cylinder sewing machine is the back part, the left end of the needle of the presser foot is the head part, and the right end is the tail part.

[0008] In the above-mentioned turnover structure of the cylinder sewing machine, the sliding hole comprises a first sliding hole and a second sliding hole, both in the shape of a long strip, the hole wall at the connection between the first sliding hole and the second sliding hole is arranged to be inclined, the first sliding hole has the limiting wall at the end away from the base, and the second sliding hole has the limiting wall at the end away from the base. This structure makes the hole wall of the sliding hole have two limiting walls, and makes the main body be positioned at two different angles relative to the base, satisfying the different debugging and maintenance requirements of the operator, and the hole wall at the connection between the first sliding hole and the second sliding hole is arranged to be inclined, making the sliding pin move along the sliding hole smoothly and avoiding the problem of being stuck.

[0009] In the above-mentioned turnover structure of a cylinder sewing machine, the locking member comprises a locking sheet and a plurality of bolts, when the main body is abutted on the base, the locking sheet is abutted on the tail of the connection between the main body and the base and the main body and the base are detachably connected through the bolts. This structure makes the main body and the base detachably connected, the connection is convenient, and through the abutment and fixation of the locking sheet, the contact area is improved, the position of the base and the main body can be better limited, and the fixation firmness of the main body and the base is improved. In actual production, the main body and the base can be directly detachably connected through the bolts.

[0010] In the above-mentioned turnover structure of a cylinder sewing machine, the turnover structure further comprises a torsion spring and an L-shaped locking hook, the tail of the main body is fixedly connected with a locking pin, the tail of the base is fixedly connected with a hinged pin, the bending part of the locking hook is hinged with the hinged pin, the torsion spring is sleeved on the hinged pin, one end of the torsion spring acts on the base, and the other end acts on one end of the locking hook, and the other end of the locking hook can hook the locking pin to position the main body and the base under the action of the torsion force of the torsion spring. The operator needs to overcome the torsion force of the torsion spring to rotate the locking hook, so that the other end of the locking hook no longer hooks the locking pin, and the operator can turn over the main body. The torsion spring and the locking hook play a safety protection role, avoid the main body from directly falling in the case of misoperation, avoid the damage of the main body and the falling plate, and avoid the main body from hitting the operator, improve the safety, and when the cylinder sewing machine is debugged and maintained, the main body and the base can be positioned through the torsion spring and the locking hook when detecting whether the debugging is qualified, the locking member does not need to be frequently disassembled and assembled, and the cylinder sewing machine is convenient to debug and maintain.

[0011] In the above-mentioned turnover structure of a cylinder sewing machine, the end of the other end of the locking hook is inwardly bent, the side wall of the end of the other end of the locking hook has an arc-shaped positioning notch, and the locking pin can be partially embedded in the positioning notch. This structure improves the stability of the locking hook, thereby improving the stability of the main body and improving the safety.

[0012] In the above-mentioned turnover structure of a cylinder sewing machine, the tail of the base is fixedly connected with an abutting pin, one end of the torsion spring acts on the abutting pin, and the locking hook can abut on the abutting pin under the action of the torsion force of the torsion spring. The setting of the abutting pin not only makes the torsion spring have a force point, but also positions the locking hook, which is convenient for the operator to operate the locking hook to hook the main body.

[0013] In the turnover structure of the cylinder sewing machine, the dumping plate is located between the locking member and the locking hook, the locking member is arranged adjacent to the back of the base and the back of the main body, and the hinge point of the dumping plate is located at the middle of the tail of the base. This structure reasonably utilizes the space, improves the locking effect of the locking member and the positioning effect of the locking hook, and enables the main body to be better positioned by the dumping plate.

[0014] In the turnover structure of the cylinder sewing machine, the tail of the base has a first tail surface in a planar shape, the tail of the main body has a second tail surface in a planar shape, and the dumping plate and the locking hook are arranged along the first tail surface and the second tail surface. This structure enables the rotation of the dumping plate and the locking hook to be not hindered, and improves the stability of the turnover structure.

[0015] In the turnover structure of the cylinder sewing machine, the bottom of the back of the main body has a pair of protruding and spaced hinge blocks, the top of the back of the base has a protruding hinge strip, the hinge strip is embedded between the pair of hinge blocks, and the main body and the base are hinged at the back through a hinge shaft arranged in the pair of hinge blocks and the hinge strip.

[0016] In the turnover structure of the cylinder sewing machine, the base has a lubricating oil groove, and the lubricating oil groove penetrates the top of the base. An oil pump or the like can be arranged in the lubricating oil groove, the main body is convenient to debug and maintain after being turned over, and the lubricating oil is convenient to add.

[0017] Compared with the prior art, the turnover structure of the cylinder sewing machine has the following advantages:

[0018] 1. The main body of the cylinder sewing machine can be rotated and positioned relative to the base, the main body and the base are connected together, the main body does not need to be taken down and placed on a workbench alone, and the main body can be located at an optimal debugging angle, so that the cylinder sewing machine is convenient to debug and maintain.

[0019] 2. The main body of the cylinder sewing machine is positioned by the torsional spring and the locking hook, the main body is prevented from directly dumping in the case of misoperation, the main body and the dumping plate are prevented from being damaged, the main body is prevented from hitting the operator, safety is improved, the main body and the base can be positioned by the torsional spring and the locking hook when the cylinder sewing machine is debugged and maintained, the locking member does not need to be frequently disassembled and assembled, and the cylinder sewing machine is convenient to debug and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a state diagram when the base and the main body of the cylinder sewing machine are closed.

[0021] Figure 2is the state diagram of the barrel type sewing machine base and main body when it is opened at a small angle.

[0022] Figure 3 is the state diagram of the barrel type sewing machine base and main body when it is opened at a small angle.

[0023] Figure 4 is the state diagram of the barrel type sewing machine base and main body when it is opened at a small angle.

[0024] Figure 5 is the state diagram of the barrel type sewing machine base and main body when it is opened at a small angle.

[0025] In the figure, 1 is the base, 2 is the main body, 3 is the tilting plate, 31 is the sliding hole, 311 is the limiting wall, 312 is the first sliding hole, 313 is the second sliding hole, 4 is the locking piece, 41 is the locking piece, 42 is the bolt, 5 is the sliding pin, 6 is the torsion spring, 7 is the locking hook, 71 is the positioning notch, 8 is the locking pin, 9 is the hinge pin, 10 is the abutting pin, 11 is the first tail surface, 12 is the second tail surface, 13 is the hinge block, 14 is the hinge strip, 15 is the hinge shaft, and 16 is the lubricating oil groove. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the accompanying drawings, but the present application is not limited to these embodiments.

[0027] As shown in Figure 1 , Figure 2 , Figure 4 , the sewing machine comprises a base 1, a main body 2 and a tilting structure, the tilting structure comprises a tilting plate 3, a sliding pin 5, a torsion spring 6, a locking hook 7, a locking pin 8, a hinge pin 9, an abutting pin 10, a hinge block 13, a hinge strip 14 and a hinge shaft 15.

[0028] The bottom of the back of the main body 2 has a pair of protruding and spaced hinge blocks 13, the top of the back of the base 1 has a protruding hinge strip 14, the hinge strip 14 is embedded between the pair of hinge blocks 13, and the main body 2 and the base 1 are hinged at the back by the hinge shaft 15 passing through the pair of hinge blocks 13 and the hinge strip 14.

[0029] The bottom of the pouring plate 3 is hinged to the tail of the base 1, and the hinge point is located at the middle of the tail of the base 1. The pouring plate 3 has a sliding hole 31 in the shape of a long strip, and the tail of the main body 2 is fixed with a sliding pin 5 which is arranged in the sliding hole 31. In the embodiment, the sliding hole 31 has two limiting walls 311 on the hole wall, and the sliding hole 31 includes a first sliding hole 312 and a second sliding hole 313 which are both in the shape of a long strip. The hole wall at the connection between the first sliding hole 312 and the second sliding hole 313 is arranged in an inclined manner. The first sliding hole 312 has a limiting wall 311 at the end away from the base 1, and the second sliding hole 313 has a limiting wall 311 at the end away from the base 1. In actual production, the number of limiting walls 311 can be one or three.

[0030] The locking piece 4 includes a locking sheet 41 and four bolts 42. When the main body 2 is abutted against the base 1, the locking sheet 41 is abutted against the tail of the connection between the main body 2 and the base 1, and the two bolts 42 are used to fix the locking sheet 41 and the main body 2, and the other two bolts 42 are used to fix the locking sheet 41 and the base 1, so that the main body 2 and the base 1 are detachably connected.

[0031] The tail of the main body 2 is fixed with a locking pin 8, the tail of the base 1 is fixed with a hinge pin 9, the locking hook 7 is in the shape of L, the bending part of the locking hook 7 is hinged to the hinge pin 9, the torsional spring 6 is sleeved on the hinge pin 9, one end of the torsional spring 6 acts on the base 1, and the other end acts on one end of the locking hook 7. The other end of the locking hook 7 can hook the locking pin 8 under the action of the torsional force of the torsional spring 6 to position the main body 2 and the base 1. The end of the other end of the locking hook 7 is inwardly bent, the side wall of the end of the other end of the locking hook 7 has a positioning notch 71 in the shape of an arc, and the locking pin 8 can be partially embedded in the positioning notch 71. The tail of the base 1 is fixed with an abutting pin 10, one end of the torsional spring 6 acts on the abutting pin 10, and the locking hook 7 can abut against the abutting pin 10 under the action of the torsional force of the torsional spring 6.

[0032] The pouring plate 3 is located between the locking piece 4 and the locking hook 7, and the locking piece 4 is arranged adjacent to the back of the base 1 and the back of the main body 2. The tail of the base 1 has a first tail surface 11 in the shape of a plane, and the tail of the main body 2 has a second tail surface 12 in the shape of a plane. The pouring plate 3 and the locking hook 7 are arranged along the first tail surface 11 and the second tail surface 12. The base 1 has a lubricating oil groove 16 which penetrates through the top of the base 1.

[0033] When the cylinder sewing machine is normally used, the main body 2 abuts against the base 1 by using its own gravity, the locking hook 7 hooks the locking pin 8 under the action of the torsional force of the torsional spring 6, and the main body 2 and the base 1 are detachably connected through the locking piece 4. When debugging and maintenance are needed, the locking piece 4 is disassembled, the locking hook 7 is no longer hooked on the locking pin 8 by overcoming the torsional force of the torsional spring 6, the operator applies external force to make the main body 2 rotate around the base 1, at this time, the pouring plate 3 rotates around the hinge point and the sliding pin 5 moves along the sliding hole 31, as shown inFigure 3 As shown, until the sliding pin 5 abuts against the limiting wall 311 of the first sliding hole 312, the base 1 pulls the main body 2 through the tipping plate 3 and the sliding pin 5 to tilt and position the main body 2, and to open the main body 2 at a small angle. As shown, the sliding pin 5 can be made to enter the second sliding hole 313 and abut against the limiting wall 311 of the second sliding hole 313, the base 1 pulls the main body 2 through the tipping plate 3 and the sliding pin 5 to tilt and position the main body 2, and to open the main body 2 at a large angle. Then the inside of the sewing machine can be debugged and repaired, after completion, the main body 2 is pushed reversely to abut against the base 1, the locking hook 7 is turned to hook the locking pin 8, and the locking member is installed. Figure 5 As shown, until the sliding pin 5 abuts against the limiting wall 311 of the first sliding hole 312, the base 1 pulls the main body 2 through the tipping plate 3 and the sliding pin 5 to tilt and position the main body 2, and to open the main body 2 at a small angle. As shown, the sliding pin 5 can be made to enter the second sliding hole 313 and abut against the limiting wall 311 of the second sliding hole 313, the base 1 pulls the main body 2 through the tipping plate 3 and the sliding pin 5 to tilt and position the main body 2, and to open the main body 2 at a large angle. Then the inside of the sewing machine can be debugged and repaired, after completion, the main body 2 is pushed reversely to abut against the base 1, the locking hook 7 is turned to hook the locking pin 8, and the locking member is installed.

[0034] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0035] Although the terms base 1, main body 2, tipping plate 3, sliding hole 31, limiting wall 311, first sliding hole 312, second sliding hole 313, locking member 4, locking piece 41, bolt 42, sliding pin 5, torsion spring 6, locking hook 7, positioning recess 71, locking pin 8, hinged pin 9, abutting pin 10, first tail surface 11, second tail surface 12, hinged block 13, hinged strip 14, hinged shaft 15, lubricating oil groove 16, etc. are used more frequently herein, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A flipping structure for a tube sewing machine, the sewing machine comprising a base (1) and a main body (2) disposed on the base (1), characterized in that, The tilting structure includes a tilting plate (3), the main body (2) and the base (1) are hinged at the back, the tilting plate (3) has a long sliding hole (31), the wall of the sliding hole (31) has at least one limiting wall (311), the tail of the main body (2) is fixedly connected to a sliding pin (5), the bottom of the tilting plate (3) is hinged to the tail of the base (1), the sliding pin (5) passes through the sliding hole (31), when the main body (2) rotates relative to the base (1), the tilting plate (3) rotates about its own hinge point and the sliding pin (5) moves along the sliding hole (31), when the sliding pin (5) abuts against the limiting wall (311), the base (1) pulls the main body (2) by the tilting plate (3) and the sliding pin (5). The body (2) tilts and positions the main body (2). When the main body (2) abuts against the base (1), the main body (2) and the base (1) can be fixedly connected by the locking member (4). The flipping structure also includes a torsion spring (6) and an L-shaped locking hook (7). The tail of the main body (2) is fixedly connected to a locking pin (8), and the tail of the base (1) is fixedly connected to a hinge pin (9). The bent part of the locking hook (7) is hinged to the hinge pin (9). The torsion spring (6) is sleeved on the hinge pin (9). One end of the torsion spring (6) acts on the base (1), and the other end acts on one end of the locking hook (7). The other end of the locking hook (7) can hook the locking pin (8) under the action of the torsion force of the torsion spring (6) so that the main body (2) and the base (1) are positioned.

2. The flipping structure of a tube sewing machine according to claim 1, characterized in that, The sliding hole (31) includes a first sliding hole (312) and a second sliding hole (313) that are both elongated. The hole wall at the connection between the first sliding hole (312) and the second sliding hole (313) is inclined. The first sliding hole (312) has a limiting wall (311) at one end away from the base (1), and the second sliding hole (313) has a limiting wall (311) at one end away from the base (1).

3. The flipping structure of a tube sewing machine according to claim 1, characterized in that, The locking component (4) includes a locking plate (41) and several bolts (42). When the main body (2) abuts against the base (1), the locking plate (41) abuts against the tail of the connection between the main body (2) and the base (1) and the bolts (42) make the main body (2) and the base (1) detachably connected.

4. The flipping structure of a tube sewing machine according to claim 1, 2, or 3, characterized in that, The other end of the locking hook (7) is bent inward, and the side wall of the other end of the locking hook (7) has an arc-shaped positioning notch (71), and the locking pin (8) can be partially embedded in the positioning notch (71).

5. The flipping structure of a tube sewing machine according to claim 1, 2, or 3, characterized in that, The base (1) is fixedly connected to a stop pin (10) at its tail. One end of the torsion spring (6) acts on the stop pin (10). Under the action of the torsion force of the torsion spring (6), the locking hook (7) can abut against the stop pin (10).

6. The flipping structure of a tube sewing machine according to claim 1, 2, or 3, characterized in that, The tilting plate (3) is located between the locking member (4) and the locking hook (7). The locking member (4) is located near the back of the base (1) and the back of the main body (2). The hinge point of the tilting plate (3) is located in the middle of the tail of the base (1).

7. The flipping structure of a tube sewing machine according to claim 1, 2, or 3, characterized in that, The base (1) has a first tail surface (11) in a planar shape at its tail end, and the body (2) has a second tail surface (12) in a planar shape at its tail end. The tilting plate (3) and the locking hook (7) are arranged along the first tail surface (11) and the second tail surface (12).

8. The flipping structure of a tube sewing machine according to claim 1, 2, or 3, characterized in that, The bottom of the back of the main body (2) has a pair of protruding and spaced-apart hinge blocks (13), and the top of the back of the base (1) has a protruding hinge strip (14). The hinge strip (14) is embedded between the pair of hinge blocks (13), and the main body (2) and the base (1) are hinged together at the back by a hinge shaft (15) passing through the pair of hinge blocks (13) and the hinge strip (14).

9. The flipping structure of a tube sewing machine according to claim 1, 2, or 3, characterized in that, The base (1) has a lubricating oil groove (16) that extends through the top of the base (1).

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