Edge locking device for bed sheet processing

Abstract

The utility model discloses an overlock device for bed sheet processing, and relates to the technical field of bed sheet processing, the overlock device comprises an overlock device, the top of the overlock device is provided with a first pushing mechanism used for pushing and overlock the starting end of cloth, the bottom of the overlock device is provided with a pushing mechanism used for automatically pushing and overlock the cloth, and the pushing mechanism comprises a discharging unit, a feeding unit and a discharging unit; according to the winding unit, a pushing mechanism is arranged, a discharging rod wound with cloth is installed on a fixing column, a sliding limiting rod is installed on the fixing column in a sliding mode, and a winding barrel is installed on the surface of a rotating column in a sliding clamping mode, so that a sliding stop rod is installed on the surfaces of the rotating column and the sliding rod in a sliding mode, and a positioning rotary knob is rotated to fix the position of the sliding stop rod; the position of the winding drum is fixed through the sliding stop lever, one end, after edge locking, of the cloth is wound on the winding drum, the winding motor operates to achieve rotation of the winding drum, winding of the cloth is achieved, and meanwhile automatic pushing of the cloth is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bed sheet processing technology, specifically to a locking device for bed sheet processing. Background Technology

[0002] Bed sheets are one of the textiles used in bedding. In the process of making bed sheets, the fabric is first cut, and then the fabric is folded and fed into the sewing part of the sewing machine for overlocking.

[0003] According to the patent titled "A Guide Device for Processing Insulated Bed Sheets" (Patent Publication No.: CN217077988U, Patent Publication Date: 2022-07-29), it includes a clamping mechanism for holding the fabric edge. The clamping mechanism is installed on the side of the hemming cylinder away from the sewing part. The clamping mechanism includes a horizontally arranged pressure roller and a support roller for clamping the fabric edge with the pressure roller. The pressure roller is located on the side of the hemming cylinder facing the machine base, and its axis is parallel to the length direction of the upper surface of the worktable. The support roller is parallel to the pressure roller. This application has the effect of making the fabric hemming width consistent, thereby resulting in neat edge stitching of the insulated bed sheet.

[0004] Based on the aforementioned existing technology, current overlocking devices for bed sheet processing still have the following problems: Most mainstream bed sheet overlocking equipment uses a manual fabric pushing operation mode, and its mechanical feeding mechanism has a significant efficiency bottleneck, making it difficult to meet the needs of large-scale production in the modern textile industry. Manual operation not only limits the processing cycle time but also easily causes fluctuations in seam quality due to uneven pushing force. Therefore, this utility model provides an overlocking device for bed sheet processing. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sewing device for bed sheet processing, solving the following problems of current bed sheet sewing devices: Most mainstream bed sheet sewing equipment currently uses a manual fabric pushing operation mode, and its mechanical feeding mechanism has a significant efficiency bottleneck, making it difficult to meet the needs of large-scale production in modern textile industry. Manual operation not only limits the processing cycle but also easily leads to fluctuations in sewing quality due to uneven pushing force.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hemming device for bed sheet processing, comprising a hemming device, wherein a push mechanism is provided at the top of the hemming device for advancing the beginning of the fabric for hemming, and a push mechanism is provided at the bottom of the hemming device for automatically advancing the fabric for hemming, the push mechanism comprising:

[0007] The feeding unit is located at the bottom of the locking device and includes a fixing frame;

[0008] The winding unit is located on one side of the unloading unit and includes a rotating column rotatably mounted on one end of a fixed frame, a winding motor on one side of the fixed frame, the output end of the winding motor passing through the fixed frame and fixedly connected to the rotating column, and a winding drum is clamped on the surface of the rotating column for winding the fabric and advancing the fabric.

[0009] Preferably, a fixed stop bar is fixedly installed on the other side of the fixed frame, and the rotating column moves through the interior of the fixed stop bar. A sliding rod is fixedly installed on one side of the bottom end of the fixed stop bar. A sliding stop bar is slidably installed on the surface of the sliding rod, and the sliding stop bar is slidably installed on the surface of the rotating column. The sliding stop bar is fixed to the sliding rod by a positioning knob.

[0010] Preferably, the feeding unit includes a fixed column rotatably mounted on the other end of the fixed frame, a feeding rod is fitted on the surface of the fixed column, a fixed limiting rod is fixedly mounted on the surface of the fixed column, and a sliding limiting rod is slidably mounted on the surface of the fixed column to position the feeding rod.

[0011] Preferably, a limiting groove is formed on the surface of the fixed column, a limiting block is fixedly installed inside the sliding limit rod, and the limiting block slides inside the limiting groove. A threaded knob is threadedly installed at one end of the sliding limit rod to fix the position of the sliding limit rod.

[0012] Preferably, the first pushing mechanism includes a frame fixedly installed on the top of the locking device. A first roller and a second roller are rotatably installed inside the frame. The shafts of the first roller and the second roller are respectively fixedly installed through the frame and a first pulley and a second pulley. A transmission belt is installed between the first pulley and the second pulley. A drive motor is fixedly installed on one side of the frame, and the output end of the drive motor is fixedly connected to the second roller through the frame. Several auxiliary rollers are rotatably installed inside the frame.

[0013] Preferably, guide blocks are fixedly installed on both the front and rear sides of the locking device.

[0014] This utility model provides a hemming device for bed sheet processing. Compared with the prior art, it has the following advantages:

[0015] Beneficial effects:

[0016] 1. This edge-locking device for bed sheet processing includes a push mechanism that mounts a feed rod with wound fabric onto a fixed post. A sliding limit rod is slidably mounted on the fixed post, and a limit block is slidably inserted into a limit groove. Rotating a threaded knob fixes the position of the sliding limit rod, which in turn fixes the position of the feed rod. A take-up drum is slidably clamped onto the surface of a rotating post, allowing a sliding stop rod to slidably mount on the surfaces of the rotating post and the sliding rod. Rotating a positioning knob fixes the position of the sliding stop rod, which in turn fixes the position of the take-up drum. One end of the fabric, after edge-locking, is wound onto the take-up drum. The take-up motor rotates to rotate the take-up drum, thus winding up the fabric and simultaneously achieving automatic fabric feeding.

[0017] 2. The edge-locking device for bed sheet processing has a push mechanism. One end of the fabric is inserted into the frame, the drive motor drives the second roller to rotate, the second roller drives the second belt pulley to rotate, the second belt pulley drives the first belt pulley to rotate through the transmission belt, and the first belt pulley drives the first roller to rotate, thereby realizing the initial edge-locking of the fabric. Attached Figure Description

[0018] Figure 1 This is a left-side perspective three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a left-side perspective view of the propulsion mechanism of this utility model.

[0020] Figure 3 This is a three-dimensional cross-sectional view of the primary mechanism of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the winding rod clamping mechanism of this utility model.

[0022] In the diagram: 1-Seam locking device, 2-Propulsion mechanism, 21-Feeding unit, 211-Fixed frame, 212-Fixed column, 213-Fixed limit rod, 214-Sliding limit rod, 215-Limiting groove, 216-Limiting block, 217-Threaded knob, 218-Feeding rod, 22-Rewinding unit, 221-Fixed stop bar, 222-Sliding rod, 223-Sliding stop bar, 224-Positioning knob, 225-Rewinding drum, 226-Rewinding motor, 227-Rotating column, 3-First pushing mechanism, 31-Frame, 32-First roller, 33-Second roller, 34-First pulley, 35-Second pulley, 36-Transmission belt, 37-Drive motor, 38-Auxiliary roller, 4-Guide block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A hemming device for bed sheet processing includes a hemming device 1. The top of the hemming device 1 is provided with a pushing mechanism 3 for advancing the fabric at the beginning of the hemming process. The bottom of the hemming device 1 is provided with a pushing mechanism 2 for automatically advancing the fabric for hemming. The pushing mechanism 2 includes:

[0026] The feeding unit 21 is located at the bottom of the locking device 1 and includes a fixing frame 211;

[0027] The winding unit 22 is located on one side of the unloading unit 21. It includes a rotating column 227 rotatably mounted on one end of the fixed frame 211, and a winding motor 226 on one side of the fixed frame 211. The output end of the winding motor 226 passes through the fixed frame 211 and is fixedly connected to the rotating column 227. A winding drum 225 is clamped on the surface of the rotating column 227 for winding the fabric and advancing the fabric.

[0028] In this embodiment, a fixed stop bar 221 is fixedly installed on the other side of the fixed frame 211, and a rotating column 227 moves through the interior of the fixed stop bar 221. A sliding rod 222 is fixedly installed on one side of the bottom end of the fixed stop bar 221. A sliding stop bar 223 is slidably installed on the surface of the sliding rod 222, and the sliding stop bar 223 is slidably installed on the surface of the rotating column 227. The sliding stop bar 223 is fixed to the sliding rod 222 by a positioning knob 224. The feeding unit 21 includes a fixed column 212 rotatably installed on the other end of the fixed frame 211. A feeding rod 218 is fitted on the surface of the fixed column 212. A fixed limit bar 213 is fixedly installed on the surface of the fixed column 212. A sliding limit bar 214 is slidably installed on the surface of the fixed column 212 to position the feeding rod 218.

[0029] The winding motor 226, model OMV800, is electrically connected to an external power supply and is operated by a human-controlled control panel. The winding drum 225 is slidably mounted on the surface of the rotating column 227, and the sliding stop 223 is slidably mounted on the surface of the rotating column 227 and the sliding rod 222. The position of the sliding stop 223 is fixed by rotating the positioning knob 224, and the position of the winding drum 225 is fixed by the sliding stop 223. One end of the fabric after edge locking is wound around the winding drum 225. The operation of the winding motor 226 causes the winding drum 225 to rotate, thereby winding up the fabric and automatically advancing the fabric.

[0030] In this embodiment, a limiting groove 215 is formed on the surface of the fixed column 212, a limiting block 216 is fixedly installed inside the sliding limit rod 214, and the limiting block 216 slides inside the limiting groove 215. A threaded knob 217 is threadedly installed at one end of the sliding limit rod 214 to fix the position of the sliding limit rod 214.

[0031] The feeding rod 218 with the fabric wound on it is installed on the fixed post 212. The sliding limit rod 214 is slidably installed on the fixed post 212. The limit block 216 is slidably inserted into the limit groove 215. The position of the sliding limit rod 214 is fixed by rotating the threaded knob 217. The position of the feeding rod 218 is fixed by the sliding limit rod 214.

[0032] In this embodiment, the first pushing mechanism 3 includes a frame 31 fixedly installed on the top of the locking device 1. A first roller 32 and a second roller 33 are rotatably installed inside the frame 31. The shafts of the first roller 32 and the second roller 33 are respectively fixedly installed through the frame 31, and a first belt pulley 34 and a second belt pulley 35 are respectively fixedly installed. A transmission belt 36 is installed between the first belt pulley 34 and the second belt pulley 35. A drive motor 37 is fixedly installed on one side of the frame 31, and the output end of the drive motor 37 is fixedly connected to the second roller 33 through the frame 31. Several auxiliary rollers 38 are rotatably installed inside the frame 31.

[0033] The drive motor 37 is an OMV800 model, which is electrically connected to an external power source and can be opened and closed by a human-operated control panel. One end of the fabric is inserted into the frame 31. The drive motor 37 drives the second roller 33 to rotate, the second roller 33 drives the second belt pulley 35 to rotate, the second belt pulley 35 drives the first belt pulley 34 to rotate through the transmission belt 36, and the first belt pulley 34 drives the first roller 32 to rotate, thereby realizing the initial end of the fabric to be pushed and edged.

[0034] In this embodiment, guide blocks 4 are fixedly installed on both the front and rear sides of the locking device 1.

[0035] The guide blocks 4, which are fixedly installed on both the front and rear sides of the overlock device 1, guide the fabric and prevent the fabric from contacting the sharp edges through the curvature of the guide blocks 4.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] During operation, firstly, the feeding rod 218 with the fabric wound on it is installed on the fixed post 212, the sliding limit rod 214 is slidably installed on the fixed post 212, the limit block 216 is slidably inserted into the limit groove 215, and the position of the sliding limit rod 214 is fixed by rotating the threaded knob 217. The position of the feeding rod 218 is fixed by the sliding limit rod 214.

[0038] Next, one end of the fabric is inserted into the frame 31, and the drive motor 37 runs to drive the second roller 33 to rotate. The second roller 33 drives the second belt pulley 35 to rotate. The second belt pulley 35 drives the first belt pulley 34 to rotate through the transmission belt 36. The first belt pulley 34 drives the first roller 32 to rotate, thus advancing and locking the initial end of the fabric.

[0039] Then, the take-up drum 225 is slidably mounted on the surface of the rotating column 227, so that the sliding stop bar 223 is slidably mounted on the surface of the rotating column 227 and the sliding rod 222. The position of the sliding stop bar 223 is fixed by rotating the positioning knob 224. The position of the take-up drum 225 is fixed by the sliding stop bar 223. One end of the fabric after being hemmed is wound around the take-up drum 225. The take-up motor 226 runs to make the take-up drum 225 rotate, to take up the fabric, and to automatically advance the fabric.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewing device for processing bed sheets, comprising a sewing device (1), characterized in that: The top of the hemming device (1) is provided with a push mechanism (3) for pushing the fabric at the beginning of the hemming, and the bottom of the hemming device (1) is provided with a push mechanism (2) for automatically pushing the fabric to the hemming. The push mechanism (2) includes: The feeding unit (21) is located at the bottom of the locking device (1) and includes a fixing frame (211); The winding unit (22) is located on one side of the unloading unit (21) and includes a rotating column (227) rotatably mounted on one end of the fixed frame (211), a winding motor (226) on one side of the fixed frame (211), the output end of the winding motor (226) passing through the fixed frame (211) and fixedly connected to the rotating column (227), and a winding drum (225) is clamped on the surface of the rotating column (227) for winding the fabric and realizing the advancement of the fabric.

2. The edge-locking device for bed sheet processing according to claim 1, characterized in that: A fixed stop bar (221) is fixedly installed on the other side of the fixed frame (211), and the rotating column (227) moves through the interior of the fixed stop bar (221). A sliding rod (222) is fixedly installed on one side of the bottom end of the fixed stop bar (221). A sliding stop bar (223) is slidably installed on the surface of the sliding rod (222), and the sliding stop bar (223) is slidably installed on the surface of the rotating column (227). The sliding stop bar (223) is fixed to the sliding rod (222) by a positioning knob (224).

3. The edge-locking device for bed sheet processing according to claim 1, characterized in that: The feeding unit (21) includes a fixed column (212) rotatably mounted on the other end of the fixed frame (211). A feeding rod (218) is fitted on the surface of the fixed column (212). A fixed limiting rod (213) is fixedly installed on the surface of the fixed column (212). A sliding limiting rod (214) is slidably installed on the surface of the fixed column (212) to position the feeding rod (218).

4. The edge-locking device for bed sheet processing according to claim 3, characterized in that: The surface of the fixed column (212) is provided with a limiting groove (215), and a limiting block (216) is fixedly installed inside the sliding limit rod (214). The limiting block (216) slides inside the limiting groove (215), and a threaded knob (217) is threadedly installed at one end of the sliding limit rod (214) to fix the position of the sliding limit rod (214).

5. The edge-locking device for bed sheet processing according to claim 1, characterized in that: The first pushing mechanism (3) includes a frame (31) fixedly installed on the top of the locking device (1). A first roller (32) and a second roller (33) are rotatably installed inside the frame (31). The shafts of the first roller (32) and the second roller (33) respectively pass through the frame (31) and are fixedly installed with a first pulley (34) and a second pulley (35). A transmission belt (36) is installed between the first pulley (34) and the second pulley (35). A drive motor (37) is fixedly installed on one side of the frame (31), and the output end of the drive motor (37) passes through the frame (31) and is fixedly connected to the second roller (33). Several auxiliary rollers (38) are rotatably installed inside the frame (31).

6. The edge-locking device for bed sheet processing according to claim 1, characterized in that: Guide blocks (4) are fixedly installed on both the front and rear sides of the locking device (1).

Images