Height-adjustable garment sewing serger
By designing the height adjustment components of the worm and worm gear in the edge copying machine, and using the pedaling power to achieve flexible height adjustment, the problems of inconvenience and high cost in the prior art are solved, and the height stability and production cost are achieved.
Patent Information
- Application Number
- CN202421653257.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing edge-brushing machines have problems of inconvenience and high cost when adjusting the height. Especially when people need to adjust the height frequently, manual adjustment is cumbersome, while electric adjustment is not commonly used, resulting in higher production costs.
A height adjustment assembly including a worm and a worm gear is designed to provide power by using personnel pedaling to achieve stable adjustment of the table height through the self-locking between the worm and the worm gear.
It realizes flexible height adjustment, reduces production costs, and ensures the stability of the countertop height through multi-point support and self-locking, avoiding countertop tilt caused by uneven load.
Smart Images
Figure CN222821852U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ready-made clothing manufacturing, in particular to a clothing sewing and overlocking machine with adjustable height. Background Art
[0002] Overlock machines play an important role in clothing manufacturing. Their main function is to fold or sew the edges of fabrics to prevent them from unraveling and loosening, making the garments more durable and neat. They can also perform decorative edge processing, such as adding tape, embroidery or other decorative elements, to increase the visual appeal of garments.
[0003] Due to the inconsistency of operators' habits and heights, it is usually necessary to adjust the height of the overlock machine when replacing operators. When adjusting the overlock machine, the existing equipment usually manually adjusts the side of the overlock machine or directly adopts electric adjustment. The above methods all have some disadvantages. When the personnel manually adjusts the side, since the personnel are not in the working position, they cannot feel whether the height is appropriate in real time, so it takes multiple adjustments to adapt, which is more troublesome. When the motor is used for adjustment, since the height of the overlock machine does not need to be adjusted frequently, and it is only adjusted once in a while, the use of a motor for adjustment will result in a higher mass production cost of the overlock machine. Utility Model Content
[0004] The utility model aims to provide a height-adjustable clothing sewing overlock machine to solve the problems of inconvenient adjustment or high cost in the prior art.
[0005] The utility model is realized by the following technical scheme: a height-adjustable clothing sewing overlock machine comprises a workbench, an overlock machine unit is installed on the workbench, a height-adjusting assembly is arranged on the workbench, the workbench comprises a table top and a plurality of support columns, the support columns comprise a first support column unit and a second support column unit, the first support column unit is slidably connected to the second support column unit, a notch is provided on the second support column unit, and a plurality of second support column units are connected by connecting ribs; the height-adjusting assembly comprises a worm rotatably connected to a worm wheel and two groups of adjusting modules symmetrically distributed on both sides of the worm, the adjusting module comprises a rotating shaft rotatably connected to the connecting rib, a worm wheel is installed on the rotating shaft, the worm wheel meshes with the worm, first adjusting arms are fixedly connected to both ends of the rotating shaft respectively, a second adjusting arm is slidably connected to the first adjusting arm, the second adjusting arm is hinged to one end of the first support column unit away from the table top, and the rotation direction of the worm is controlled to control the lifting and lowering of the table top; the self-locking property between the worm and the worm wheel is utilized to maintain the stability of the table top height.
[0006] In order to better realize the utility model, further, the height adjustment component also includes a driving module arranged on the connecting rib, the output end of the driving module is connected to the worm, and the driving module provides power through people stepping on it.
[0007] In order to better realize the utility model, further, the driving module includes a bracket and two driving units symmetrically arranged on both sides of the worm, the driving unit is arranged on the bracket, the bracket is installed on the connecting rib, the first bevel gear is fixedly installed on the worm, one driving unit controls the forward rotation of the first bevel gear, and the other driving unit controls the reverse rotation of the first bevel gear.
[0008] In order to better realize the utility model, further, the driving unit includes a second bevel gear rotatably connected to the bracket, the second bevel gear is meshed with the first bevel gear, the second bevel gear is fixedly connected to the ratchet, a pedal seat is provided on the bracket, the pedal seat is rotatably connected to the pedal, a torsion spring is provided between the pedal and the pedal seat, an end of the pedal away from the pedal seat is rotatably connected to a pawl, a torsion spring is provided between the pawl and the pedal, and the pawl cooperates with the ratchet.
[0009] In order to better realize the utility model, further, the pedal seat is slidably connected to the bracket, and an error-touch spring is arranged between the bracket and the pedal seat.
[0010] In order to better realize the utility model, further, a limit plate is installed on the pedal, and the surface of the pedal is covered with an anti-slip pad.
[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0012] (1) The utility model uses the power of human footsteps to adjust the height of the table. On the one hand, it does not affect the user's work of hemming clothes. The user can adjust the height while working, so as to find the table height that is most suitable for the user. On the other hand, since the height of the table is not adjusted frequently, using pedaling as a power source can reduce the production cost of the device compared with motor drive.
[0013] (2) The utility model adjusts the height of the table top through multi-point support, so that the table top will not tilt due to uneven load distribution on it; at the same time, the self-locking property between the worm and the worm wheel is utilized, and when the worm is not driven, no other locking device is required to ensure the stability of the table top height;
[0014] (3) The utility model effectively prevents people from accidentally touching the pedal and causing the height of the table to change by providing an error-touch spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model from a front view angle.
[0017] Figure 3 It is a schematic diagram of the overall structure of the utility model from a left angle.
[0018] Figure 4 It is a cross-sectional view of the structure of the utility model.
[0019] Figure 5 Schematic diagram of the height adjustment component.
[0020] Figure 6 for Figure 3 A partial enlarged schematic diagram in the middle.
[0021] Figure 7 This is a schematic diagram of the drive module structure.
[0022] Figure 8 This is a cross-sectional view of the drive unit structure.
[0023] Wherein: 1-workbench; 2-height adjustment assembly; 3-overlocking unit; 101-table top; 102-first support column unit; 103-second support column unit; 104-connecting rib; 201-first adjustment arm; 202-second adjustment arm; 203-rotating shaft; 204-worm gear; 205-worm; 206-bracket; 207-pedal; 208-ratchet; 209-first bevel gear; 210-limiting plate; 211-ratchet; 212-pedal seat; 213-second bevel gear; 214-mistouch spring. DETAILED DESCRIPTION
[0024] 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 of 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.
[0025] Embodiment 1:
[0026] This embodiment provides a height-adjustable garment sewing overlock machine, such as Figure 1-Figure 4As shown, it includes a workbench 1, on which a sewing machine unit 3 is installed, and a height adjustment component 2 is arranged on the workbench 1. The workbench 1 includes a table top 101 and a plurality of support columns, and the support columns include a first support column unit 102 and a second support column unit 103. The first support column unit 102 is slidably connected to the second support column unit 103, and a notch is provided on the second support column unit 103. The plurality of second support column units 103 are connected by connecting ribs 104; the height adjustment component 2 includes a worm 205 rotatably connected to a worm wheel 204 and two groups of symmetrically distributed on both sides of the worm 205. The adjusting module on the side includes a rotating shaft 203 rotatably connected to the connecting rib 104, a worm wheel 204 is installed on the rotating shaft 203, the worm wheel 204 is meshed with a worm 205, both ends of the rotating shaft 203 are respectively fixedly connected to the first adjusting arm 201, the first adjusting arm 201 is slidably connected to the second adjusting arm 202, the second adjusting arm 202 is hinged to the end of the first supporting column unit 102 away from the table 101, the rotation direction of the worm 205 is controlled to control the lifting and lowering of the table 101; the self-locking property between the worm 205 and the worm wheel 204 is used to keep the height stability of the table 101.
[0027] When the driving worm 205 rotates forward, the two worm wheels 204 begin to rotate in the opposite direction. The rotation of the worm wheel 204 drives the rotating shaft 203 to make the first adjustment arm 201 rotate synchronously. The ends of the multiple first adjustment arms 201 away from the rotating shaft 203 begin to rise upward. At this time, the second adjustment arm 202 begins to drive the first support column unit 102 connected thereto to make the table 101 rise upward. When the driving worm 205 rotates in the reverse direction, similarly, the table 101 begins to lower downward as a whole. The height of the table 101 is adjusted by multi-point support, so that the table 101 will not tilt due to uneven load distribution on it. By utilizing the self-locking property between the worm 205 and the worm wheel 204, when the worm 205 is not driven, no other locking device is required to ensure the height stability of the table 101.
[0028] Embodiment 2:
[0029] This embodiment is further improved on the basis of embodiment 1. Figure 5-Figure 6 As shown, the height adjustment component 2 also includes a driving module arranged on the connecting rib 104, the output end of the driving module is connected to the worm 205, and the driving module is powered by the footsteps of the personnel. By using the footsteps of the personnel to adjust the height of the table 101, on the one hand, it can not affect the hemming operation of the user on the clothes, and the personnel can adjust while working, so as to find the most suitable height of the table 101 for the personnel themselves; on the other hand, since the height of the table 101 is not adjusted frequently, compared with the motor drive, the use of footsteps as the power will reduce the production cost of the device.
[0030] like Figure 7 As shown, the driving module includes a bracket 206 and two driving units symmetrically arranged on both sides of the worm 205. The driving unit is arranged on the bracket 206, and the bracket 206 is installed on the connecting rib 104. The first bevel gear 209 is fixedly installed on the worm 205. One driving unit controls the first bevel gear 209 to rotate forward, and the other driving unit controls the first bevel gear 209 to rotate reversely. The lifting and lowering power of the table 101 are set separately, and the personnel can control the lifting of the table 101 with one foot and the lowering of the table 101 with the other foot, which is more convenient.
[0031] like Figure 7-Figure 8 As shown, the driving unit includes a second bevel gear 213 rotatably connected to the bracket 206, the second bevel gear 213 is meshed with the first bevel gear 209, the second bevel gear 213 is fixedly connected to the ratchet 208, a pedal seat 212 is provided on the bracket 206, the pedal seat 212 is rotatably connected to the pedal 207, a torsion spring is provided between the pedal 207 and the pedal seat 212, the end of the pedal 207 away from the pedal seat 212 is rotatably connected to the pawl 211, a torsion spring is provided between the pawl 211 and the pedal 207, and the pawl 211 cooperates with the ratchet 208.
[0032] When a person steps on a pedal 207, the torsion spring connected to the pedal 207 is deformed, and the ratchet 211 starts to press down the corresponding ratchet 208. At this time, the ratchet 208 starts to drive the second bevel gear 213 to rotate, thereby driving the first bevel gear 209 to make the worm 205 rotate synchronously, and the height adjustment of the table 101 is completed; if the height of the table 101 is adjusted more at a time, then the pedal 207 is stepped on to the bottom and the foot is released, and the deformed torsion spring starts to reset the pedal 207. At this time, since the ratchet 211 is also provided with a torsion spring, the ratchet 211 can slightly rotate to avoid the ratchet 208 until the pedal 207 is reset. At this time, the next step can be stepped on again to further adjust the height of the table 101. By setting the ratchet 211 and the ratchet 208, the height of the pedal 207 can be adjusted only when it is pressed down, and it will not be adjusted when the pedal 207 is reset. Therefore, the pedal 207 can adjust the height of the table 101 to a large extent within a limited movement range.
[0033] like Figure 6 , Figure 8 As shown, the pedal seat 212 is slidably connected to the bracket 206, and an error-touch spring 214 is provided between the bracket 206 and the pedal seat 212. When a person's foot is placed on the pedal 207, in order to prevent an error-touch, the person's foot needs to push the pedal 207 forward so that the error-touch spring 214 is squeezed, and then the pawl 211 will cooperate with the ratchet 208. Otherwise, when the pedal 207 is directly pressed down, the pawl 211 will not drive the ratchet 208.
[0034] like Figure 7 As shown, a limit plate 210 is installed on the pedal 207, and the surface of the pedal 207 is covered with an anti-skid pad. In order to prevent the foot of the personnel from slipping off the pedal 207, a limit plate 210 and a surface covered with an anti-skid pad are arranged at the bottom of the pedal 207 to keep the foot on the pedal 207.
[0035] Working principle: When a person operates the device for the first time, since each person has different heights and habits, the height of the table 101 needs to be suitable for the operator. At this time, the person maintains a normal working posture, and then puts both feet on a pedal 207 respectively, and then pushes the corresponding pedal 207 forward so that the pawl 211 is stuck on the ratchet 208, and then presses down the pedal 207 so that the pawl 211 drives the ratchet 208, and the ratchet 208 drives the first bevel gear 209 through the second bevel gear 213. The first bevel gear 209 drives the worm 205 to rotate synchronously. When the worm 205 rotates, it drives the worm wheel 204, so that the rotating shaft 203 rotates, thereby driving the second adjusting arm 202 and the first adjusting arm 201 to adjust the height of the table 101. After the height adjustment is completed, the feet can be removed from the pedal 207. At this time, the table 101 can maintain the adjusted height due to the self-locking property of the worm wheel 204 and the worm 205. At this point, the height adjustment of the table 101 is completed.
[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.
Claims
1. A height-adjustable garment sewing overlock machine, comprising a workbench (1), on which an overlocking unit (3) is mounted, characterized in that: The workbench (1) is provided with a height adjustment assembly (2), the workbench (1) comprising a tabletop (101) and a plurality of support columns, the support columns comprising a first support column unit (102) and a second support column unit (103), the first support column unit (102) being slidably connected to the second support column unit (103), a notch being provided on the second support column unit (103), and the second support column units (103) of the plurality of support columns being connected via connecting ribs (104); The height adjustment assembly (2) comprises a worm (205) rotatably connected to a worm wheel (204) and two groups of adjustment modules symmetrically distributed on both sides of the worm (205); the adjustment module comprises a rotating shaft (203) rotatably connected to a connecting rib (104); a worm wheel (204) is mounted on the rotating shaft (203); the worm wheel (204) meshes with the worm (205); both ends of the rotating shaft (203) are respectively fixedly connected to a first adjustment arm (201); a second adjustment arm (202) is slidably connected to the first adjustment arm (201); the second adjustment arm (202) is hinged to an end of the first support column unit (102) away from the table top (101); the rotation direction of the worm (205) is controlled to control the elevation of the table top (101); and the self-locking property between the worm (205) and the worm wheel (204) is utilized to maintain the stability of the height of the table top (101).
2. The height-adjustable garment sewing overlock machine according to claim 1, characterized in that: The height adjustment assembly (2) further comprises a driving module arranged on the connecting rib (104), the output end of the driving module being connected to the worm (205), and the driving module providing power through human stepping.
3. The height-adjustable garment sewing overlock machine according to claim 2, characterized in that: The drive module comprises a bracket (206) and two drive units symmetrically arranged on both sides of the worm (205), the drive units being arranged on the bracket (206), the bracket (206) being mounted on the connecting rib (104), the first bevel gear (209) being fixedly mounted on the worm (205), one drive unit controlling the first bevel gear (209) to rotate forward, and the other drive unit controlling the first bevel gear (209) to rotate reversely.
4. The height-adjustable garment sewing overlock machine according to claim 3, characterized in that: The drive unit comprises a second bevel gear (213) rotatably connected to a bracket (206), the second bevel gear (213) meshing with the first bevel gear (209), the second bevel gear (213) being fixedly connected to a ratchet (208), a pedal seat (212) being provided on the bracket (206), a pedal (207) being rotatably connected to the pedal seat (212), a torsion spring being provided between the pedal (207) and the pedal seat (212), an end of the pedal (207) away from the pedal seat (212) being rotatably connected to a ratchet pawl (211), a torsion spring being provided between the ratchet pawl (211) and the pedal (207), and the ratchet pawl (211) being matched with the ratchet wheel (208).
5. The height-adjustable garment sewing overlock machine according to claim 4, characterized in that: The pedal seat (212) is slidably connected to the bracket (206), and an error-touch spring (214) is provided between the bracket (206) and the pedal seat (212).
6. The height-adjustable garment sewing overlock machine according to claim 4, characterized in that: A limit plate (210) is installed on the pedal (207), and the surface of the pedal (207) is covered with an anti-slip pad.