High-speed five-thread sewing machine

Abstract

The utility model discloses a high-speed five-thread sewing machine which comprises a machine body, a machine cover, a connecting frame, a mounting plate and a connecting seat, a connecting assembly is arranged on the outer top of the connecting frame, and a positioning assembly is arranged on the connecting assembly. Through the socket arranged on the machine cover and the connecting assembly and the positioning assembly arranged on the machine body, the machine cover and the machine body can be quickly assembled and disassembled, a traditional bolt connection mode between the machine cover and the machine body is replaced, extra tools such as a wrench or a screwdriver are not needed, and the machine cover and the machine body can be conveniently and quickly assembled and disassembled. A worker can easily mount and dismount the machine cover only through simple operation, so that maintenance work such as cleaning and lubricating oil smearing can be carried out on the interior of the sewing machine, frequent dismounting and mounting of bolts are not involved in the connecting mode, the risk of loosening or thread slipping caused by abrasion is reduced, and meanwhile, the service life of the sewing machine is prolonged. Due to the fact that no independent bolt component exists, the risk of loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a high-speed five-thread sewing machine. Background Art

[0002] The five-thread sewing machine is an industrial sewing machine, usually used for sewing backpacks, bags, leather products and other products. Its biggest feature is to pair the needle and thread, using three needle threads up and down or three needle threads down and down, so as to sew two fabrics at the same time and form a flat seam in the middle. It has the advantages of fast sewing speed, high efficiency, beautiful and firm sewing effect, simple operation and easy use.

[0003] The existing five-thread sewing machine requires the staff to regularly disassemble the cover on the side of the sewing machine to clean the inside of the sewing machine and apply lubricating oil. At present, the cover and the body of the sewing machine are connected by bolts. Every time the cover needs to be disassembled for cleaning or applying lubricating oil, the staff needs to use tools (such as wrenches or screwdrivers) to loosen and tighten the bolts. The operation is relatively cumbersome, which increases the time and cost of maintenance. In addition, as the use time increases, the bolts and nuts may wear due to frequent disassembly and assembly, resulting in loose connections or slippage, affecting the sealing and stability of the cover. Utility Model Content

[0004] The purpose of the utility model is to provide a high-speed five-thread sewing machine to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed five-thread sewing machine, comprising a machine body, a machine cover, a connecting frame, a mounting plate and a connecting seat, wherein connecting frames are arranged on the front and rear sides of the outer body, mounting plates are arranged on the front and rear sides of the machine cover, a connecting seat is arranged on the right side of the mounting plate, and a card slot is opened on the top of the connecting seat, the connecting seat is movably inserted into the connecting frame, a connecting assembly is arranged on the top outside the connecting frame, and a positioning assembly is arranged on the connecting assembly.

[0006] Preferably, the connecting assembly includes a bracket, a slide rail, a movable plate, a movable block and a card block, the bracket is arranged at the top outside the connecting frame, and slide rails are arranged on the left and right sides of the bracket, the movable plate is slidably connected to the slide rail, the movable block movably passes through the top of the bracket, and the bottom end of the movable block is connected to the top of the movable plate, the card block is arranged at the bottom of the movable plate, the card block movably passes through the top of the connecting frame, and the card block matches the card slot.

[0007] Preferably, the positioning assembly includes a support box, a spring, a slider, a positioning block and a pull rod, the support box is arranged at the top outside the bracket, the spring is located in the support box, and one end of the spring is arranged on the right side of the support box, the right side of the slider is arranged at the other end of the spring, and the slider is slidably connected to the inner wall of the support box, the positioning block is arranged on the left side of the slider, and the positioning block moves through the left side of the support box, one end of the pull rod is connected to the right side of the slider, and the pull rod moves through the inner side of the spring and the right side of the support box respectively, and the moving block is provided with an upper positioning groove and a lower positioning groove.

[0008] Preferably, a handle is provided on the top of the moving block.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can quickly install and disassemble the machine cover and the machine body by means of the socket arranged on the machine cover and the connecting assembly and the positioning assembly arranged on the machine body, thereby replacing the traditional bolt connection method between the machine cover and the machine body. No additional tools, such as wrenches or screwdrivers, are required. The staff can easily install and disassemble the machine cover through simple operations, thereby performing maintenance work such as cleaning and applying lubricating oil to the interior of the sewing machine. Moreover, since this connection method does not involve frequent disassembly and assembly of bolts, the risk of loosening or stripping due to wear is reduced. At the same time, since there is no separate bolt component, the risk of loss is also reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0011] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of position A;

[0012] Figure 3 It is a schematic diagram of the top view of the structure of the machine cover, the mounting plate and the connecting seat of the utility model;

[0013] Figure 4 It is a schematic diagram of the main structure of the positioning component of the utility model.

[0014] In the figure: 1. body; 2. cover; 3. connecting frame; 4. mounting plate; 5. connecting seat; 6. connecting assembly; 61. bracket; 62. slide rail; 63. moving plate; 64. moving block; 65. clamping block; 66. handle; 7. positioning assembly; 71. support box; 72. spring; 73. slider; 74. positioning block; 75. pull rod. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-4 The utility model provides a high-speed five-thread sewing machine, including a machine body 1, a machine cover 2, a connecting frame 3, a mounting plate 4 and a connecting seat 5. The connecting frames 3 are arranged on both the front and rear sides of the machine body 1, the mounting plates 4 are arranged on both the front and rear sides of the machine cover 2, the connecting seat 5 is arranged on the right side of the mounting plate 4, and a card slot is opened on the top of the connecting seat 5, the connecting seat 5 is movably inserted in the connecting frame 3, a connecting component 6 is arranged on the top of the connecting frame 3, and a positioning component 7 is arranged on the connecting component 6.

[0017] Specifically, the connecting component 6 includes a bracket 61, a slide rail 62, a movable plate 63, a movable block 64 and a clamping block 65. The bracket 61 is arranged at the outer top of the connecting frame 3, and the slide rails 62 are arranged on the left and right sides of the bracket 61. The movable plate 63 is slidably connected to the slide rail 62. The movable block 64 movably passes through the top of the bracket 61, and the bottom end of the movable block 64 is connected to the top of the movable plate 63. The clamping block 65 is arranged at the bottom of the movable plate 63. The clamping block 65 movably passes through the top of the connecting frame 3, and the clamping block 65 matches the clamping slot.

[0018] Specifically, the positioning assembly 7 includes a support box 71, a spring 72, a slider 73, a positioning block 74 and a pull rod 75. The support box 71 is arranged at the outer top of the bracket 61, the spring 72 is located in the support box 71, and one end of the spring 72 is arranged on the right side of the support box 71, the right side of the slider 73 is arranged at the other end of the spring 72, and the slider 73 is slidably connected to the inner wall of the support box 71, the positioning block 74 is arranged on the left side of the slider 73, and the positioning block 74 moves through the left side of the support box 71, one end of the pull rod 75 is connected to the right side of the slider 73, and the pull rod 75 moves through the inner side of the spring 72 and the right side of the support box 71 respectively, and an upper positioning groove and a lower positioning groove are provided on the moving block 64.

[0019] In the initial state, the block 65 is stuck in the lower positioning groove. When the positioning block 74 is stuck in the lower positioning groove, the block 65 is disengaged from the slot of the connecting seat 5, and the cover 2 and the body 1 are in a disassembled state. When the positioning block 74 is stuck in the upper positioning groove, the block 65 enters the slot of the connecting seat 5, and the cover 2 and the body 1 are in an installed state.

[0020] Specifically, a handle 66 is provided at the top of the moving block 64 , and the handle 66 facilitates pulling the moving block 64 .

[0021] Working principle: when installing the machine cover 2, the connecting seat 5 on the machine cover 2 is inserted into the connecting frame 3 to complete the preliminary connection between the machine cover 2 and the machine body 1, and then the staff pulls the pull rod 75 in the positioning assembly 7 to the right, and the pull rod 75 will drive the slider 73 and the positioning block 74 to slide to the right, so that the positioning block 74 disengages from the lower positioning groove of the moving block 64. At this time, the moving block 64 is pressed downward, so that the moving block 64 drives the moving plate 63 and the card block 65 to move downward. When the moving block 64 moves downward, the card block 65 will slide on the outer wall of the moving block 64. When the upper positioning groove moves down to the position corresponding to the card block 65, the elasticity of the spring 72 is restored. Under the elastic action of the spring 72, the card block 65 will return to its original position, thereby entering the upper positioning groove. At this time, the card block 65 at the bottom of the moving plate 63 completely enters the card groove of the connecting seat 5, thereby fixing the machine cover 2 on the machine body 1.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed five-thread sewing machine, characterized in that: The invention comprises a machine body (1), a machine cover (2), a connecting frame (3), a mounting plate (4) and a connecting seat (5), wherein the connecting frames (3) are arranged on both the front and rear sides of the machine body (1), the mounting plates (4) are arranged on both the front and rear sides of the machine cover (2), the connecting seat (5) is arranged on the right side of the mounting plate (4), and a card slot is arranged on the top of the connecting seat (5), the connecting seat (5) is movably inserted into the connecting frame (3), the connecting frame (3) is arranged on the top of the connecting frame (3), and the connecting assembly (6) is provided with a positioning assembly (7); The connecting assembly (6) comprises a bracket (61), a slide rail (62), a movable plate (63), a movable block (64) and a clamping block (65); the bracket (61) is arranged at the outer top of the connecting frame (3), and the bracket (61) is provided with slide rails (62) on both left and right sides; the movable plate (63) is slidably connected to the slide rail (62); the movable block (64) movably passes through the top of the bracket (61), and the bottom end of the movable block (64) is connected to the top of the movable plate (63); the clamping block (65) is arranged at the bottom of the movable plate (63); the clamping block (65) movably passes through the top of the connecting frame (3), and the clamping block (65) matches the clamping slot.

2. A high-speed five-thread sewing machine according to claim 1, characterized in that: The positioning assembly (7) includes a support box (71), a spring (72), a slider (73), a positioning block (74) and a pull rod (75). The support box (71) is arranged at the outer top of the bracket (61), the spring (72) is located in the support box (71), and one end of the spring (72) is arranged on the right side of the support box (71), the right side of the slider (73) is arranged at the other end of the spring (72), and the slider (73) is slidably connected to the inner wall of the support box (71), the positioning block (74) is arranged on the left side of the slider (73), and the positioning block (74) is movable through the left side of the support box (71), one end of the pull rod (75) is connected to the right side of the slider (73), and the pull rod (75) is movable through the inner side of the spring (72) and the right side of the support box (71), and the moving block (64) is provided with an upper positioning groove and a lower positioning groove.

3. A high-speed five-thread sewing machine according to claim 1, characterized in that: A handle (66) is provided at the top end of the moving block (64).

Images