Fabric embroidery positioning mechanism

Abstract

The invention relates to the technical field of fabric embroidery, and provides a fabric embroidery positioning mechanism which comprises a base frame, a sliding rail is arranged on the base frame, two slidable clamping assemblies are arranged on the sliding rail, connecting rods are arranged on the two clamping assemblies, wedge-shaped pieces are arranged on the two connecting rods, and the wedge-shaped pieces are arranged on the base frame. The positioning mechanism further comprises a balance weight piece arranged between the two wedge-shaped pieces, a plurality of sliding rods penetrating through the balance weight piece are arranged at the bottom of the base frame, a length-adjustable abutting rod is arranged on the balance weight piece, and the two ends of the abutting rod can abut against the inclined sides of the two wedge-shaped pieces respectively. A part of constant-orientation downward force borne by the abutting rod is converted into outward pushing force on the two clamping assemblies, the outward pushing force is constant, and when the fabric is loose, the two clamping assemblies move far away to supplement the loose amount of the fabric, so that the embroidery fabric keeps constant tension degree all the time in the whole embroidery process, and the embroidery quality is improved. The precision of embroidery patterns is ensured; and the embroidery efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of fabric embroidery technology, specifically a fabric embroidery positioning mechanism. Background Technology

[0002] Incorporating embroidery elements into down jacket designs not only enhances the artistic value of the garments but also satisfies consumers' pursuit of individuality and high quality. For high-end custom-made down jackets, the embroidery process is even more elaborate, employing hand embroidery which not only possesses high artistic value but also showcases the wearer's unique taste.

[0003] Effectively tensioning and positioning the fabric is a prerequisite for embroidery. Existing fabric positioning mechanisms mainly rely on clamps and buckles to fix the fabric, and do not have the function of dynamically adjusting the fabric tension in real time. During the embroidery process, as the embroidery needle continues to pierce, the fabric will be subjected to frequent tension and impact, causing the fabric to gradually loosen, affecting the accuracy of the embroidery pattern. If necessary, the fabric needs to be tightened and repositioned, which is both troublesome and affects the embroidery efficiency.

[0004] Therefore, the present invention proposes a fabric embroidery positioning mechanism to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fabric embroidery positioning mechanism to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A fabric embroidery positioning mechanism includes a base frame with a slide rail. Two sets of slidable clamping assemblies are mounted on the slide rail. Each set of clamping assemblies has a connecting rod, and each connecting rod has a wedge-shaped component. The positioning mechanism also includes a counterweight positioned between the two wedge-shaped components, with the inclined sides of the two wedge-shaped components facing the counterweight. Several sliding rods penetrating the counterweight are located at the bottom of the base frame. The counterweight has an internal liquid-filling chamber for injecting counterweight liquid. The counterweight has adjustable-length abutment rods, with both ends of the abutment rods abutting against the inclined sides of the two wedge-shaped components.

[0007] In one alternative embodiment: the clamping assembly includes a strip frame, a pressure plate disposed inside the strip frame, and a plurality of telescopic members disposed on the strip frame, wherein the telescopic ends of the telescopic members are connected to the pressure plate.

[0008] In one alternative embodiment: the abutting rod includes a sleeve, two support rods inserted from both ends of the sleeve, and a bidirectional threaded rod rotatably disposed in the sleeve. The two segments of the bidirectional threaded rod with opposite thread directions are threaded into the two support rods. The support rods are adapted to the sleeve, and the radial cross-sections of the sleeve and the support rods are both square. The sleeve is provided with a handwheel for rotating the bidirectional threaded rod.

[0009] In one alternative: each of the two support rods is provided with a roller at one end outside the sleeve, and each of the two wedge-shaped members is provided with a groove adapted to the roller on its inclined side.

[0010] In one alternative: the base frame is provided with a storage tank filled with counterweight liquid, the storage tank is provided with a bidirectional pump, and a liquid guide pipe is provided between the bidirectional pump and the liquid filling chamber.

[0011] In one alternative embodiment: the liquid storage tank is located below the counterweight, and a pneumatic telescopic rod is provided on the liquid storage tank. The pneumatic telescopic rod includes a vertical cylinder and a support rod. The lower end of the support rod is closed. One end of the support rod inside the vertical cylinder is provided with a first sealing piston, and the other end is provided with a tray perpendicular to the counterweight. The liquid storage tank is provided with an air control cylinder and a float plate. The air control cylinder includes a cylindrical component, a second sealing piston disposed in the cylindrical component, and a column disposed on the second sealing piston. The end of the column away from the second sealing piston is fixedly connected to the float plate. An air guide pipe is provided between the cylindrical component and the vertical cylinder. A counterweight is provided on the float plate, and a limiting block is provided at the upper end of the sliding rod. When the balance of the counterweight liquid inside the storage tank is in its initial state, the pneumatic telescopic rod is in the air-injected extension state, and the counterweight is located at the reference position under the support of the tray.

[0012] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: First, the two ends of the embroidery fabric are clamped by two sets of clamping components. Then, the length of the abutment rod is adjusted according to the actual length of the embroidery fabric so that the two ends of the abutment rod abut against the inclined sides of the two wedge-shaped parts. Next, counterweight liquid is added to the liquid chamber. The appropriate amount of counterweight liquid is added according to the actual tension required by the embroidery fabric. Under the action of gravity, the abutment rod is always subjected to a constant downward force. Since the two ends of the abutment rod abut against the inclined sides of the two wedge-shaped parts, part of the constant downward force on the abutment rod is converted into an outward pushing force on the two sets of clamping components. The force of this outward pushing force is constant. When the fabric relaxes, the two sets of clamping components move away to replenish the amount of fabric relaxation. This ensures that the embroidery fabric maintains a constant tension throughout the entire embroidery process, ensuring the accuracy of the embroidery pattern and improving embroidery efficiency.

[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram showing the arrangement between the base frame and the two sets of clamping components in an embodiment of the present invention.

[0017] Figure 3 This is a cross-sectional view of the counterweight in an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of the abutment rod in an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the internal structure of the liquid storage tank in an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the pneumatic telescopic rod in an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the structure of the air control cylinder in an embodiment of the present invention.

[0022] Figure reference numerals: 1-Base frame, 2-Slide rail, 3-Clamping assembly, 301-Strip frame, 302-Pressure plate, 303-Telescopic component, 4-Connecting rod, 5-Wedge-shaped component, 6-Counterweight component, 7-Liquid storage tank, 8-Slide rod, 9-Abutting rod, 901-Sleeve, 902-Support rod, 903-Double threaded rod, 904-Handwheel, 10-Roller, 11-Liquid chamber, 12-Limiting block, 13-Double pump, 14-Liquid guide pipe, 15-Pneumatic telescopic rod, 1501-Vertical cylinder, 1502-First sealing piston, 1503-Support rod, 16-Tray, 17-Air guide pipe, 18-Air control cylinder, 1801-Cylindrical component, 1802-Second sealing piston, 1803-Column, 19-Float plate, 20-Counterweight block, 21-Slot. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Please see Figures 1-3A fabric embroidery positioning mechanism includes a base frame 1, a slide rail 2 on the base frame 1, two sets of slidable clamping components 3 on the slide rail 2, a connecting rod 4 on each of the two sets of clamping components 3, and a wedge-shaped component 5 on each of the two connecting rods 4. The positioning mechanism also includes a counterweight 6 disposed between the two wedge-shaped components 5, with the inclined sides of the two wedge-shaped components 5 facing the counterweight 6. The bottom of the base frame 1 is provided with several sliding rods 8 penetrating the counterweight 6. The counterweight 6 has a liquid-filling chamber 11 for injecting counterweight liquid inside, and an adjustable-length abutment rod 9 on the counterweight 6. The two ends of the abutment rod 9 can respectively abut against the inclined sides of the two wedge-shaped components 5.

[0025] First, the two ends of the embroidery fabric are clamped by two sets of clamping components 3. Then, the length of the abutment rod 9 is adjusted according to the actual length of the embroidery fabric so that the two ends of the abutment rod 9 abut against the inclined sides of the two wedge-shaped pieces 5. Then, counterweight liquid is added to the liquid chamber 11. The appropriate amount of counterweight liquid is added according to the actual tension required by the embroidery fabric (the more counterweight liquid added, the greater the gravity, and the higher the tension of the fabric). Under the action of gravity, the abutment rod 9 is always subjected to a constant downward force. Since the two ends of the abutment rod 9 abut against the inclined sides of the two wedge-shaped pieces 5, part of the constant downward force on the abutment rod 9 is converted into an outward pushing force on the two sets of clamping components 3. And the outward pushing force is constant. When the fabric slackens, the two sets of clamping components 3 move away to replenish the amount of fabric slackening. Thus, the embroidery fabric maintains a constant tension throughout the entire embroidery process, ensuring the accuracy of the embroidery pattern and improving the embroidery efficiency.

[0026] It should be noted that the counterweight fluid can be a liquid such as water or oil. By controlling the amount of counterweight fluid added, the tension of the two sets of clamping components 3 on the embroidery fabric can be infinitely adjusted to adapt to the tension requirements of different types of embroidery fabrics.

[0027] Please see Figure 2 In one embodiment of the present invention, the clamping assembly 3 includes a strip frame 301, a pressure plate 302 disposed inside the strip frame 301, and a plurality of telescopic members 303 disposed on the strip frame 301. The telescopic ends of the telescopic members 303 are connected to the pressure plate 302. The telescopic members 303 can be hydraulic rods, electric telescopic rods, etc., which are existing technologies and are therefore not limited or described in detail here.

[0028] In this embodiment, the end of the embroidered fabric is laid flat in the strip frame 301, and then the extension member 303 extends to press the end of the fabric with the pressure plate 302 to complete the fixation.

[0029] Please see Figure 4In one embodiment of the present invention, the abutting rod 9 includes a sleeve 901, two support rods 902 inserted from both ends of the sleeve 901, and a bidirectional threaded rod 903 rotatably disposed in the sleeve 901. The two rod segments of the bidirectional threaded rod 903 with opposite thread directions are respectively threaded into the two support rods 902. The support rods 902 are adapted to the sleeve 901, and the radial cross sections of the sleeve 901 and the support rods 902 are both square. The sleeve 901 is provided with a handwheel 904 for rotating the bidirectional threaded rod 903.

[0030] It should be noted that a corresponding transmission structure is provided between the handwheel 904 and the bidirectional threaded rod 903. This can be a bevel gear set or other transmission structure, as long as it can drive the bidirectional threaded rod 903 to rotate when the handwheel 904 is turned.

[0031] In this embodiment, the handwheel 904 is rotated to drive the bidirectional threaded rod 903 to rotate. The rotation of the bidirectional threaded rod 903 causes the two support rods 902 to move synchronously away / near each other, thereby adjusting the overall length of the abutment rod 9 to match the actual length of the embroidery fabric. The ends of the two support rods 902 located outside the sleeve 901 abut against the inclined sides of the two wedge-shaped pieces 5 respectively.

[0032] Please see Figure 2 and Figure 4 In one embodiment of the present invention, rollers 10 are provided at one end of each of the two support rods 902 located outside the sleeve 901, and slots 21 adapted to the rollers 10 are provided on the inclined sides of the two wedges 5. By having the rollers 10 engaged in the corresponding slots 21, the contact friction between the outer end of the support rod 902 and the inclined side of the wedge 5 is changed to rolling friction, thereby improving the smoothness of the outward pushing clamping assembly 3.

[0033] Please see Figure 1 and Figure 5 In one embodiment of the present invention, the base frame 1 is provided with a storage tank 7 filled with counterweight liquid, the storage tank 7 is provided with a bidirectional pump 13, and a liquid guide pipe 14 is provided between the bidirectional pump 13 and the liquid placement chamber 11. The liquid guide pipe 14 is a flexible tube, which pumps the counterweight liquid into the liquid placement chamber 11 through the bidirectional pump 13 and pumps the counterweight liquid in the liquid placement chamber 11 back into the storage tank 7 after the embroidery is completed.

[0034] Please see Figure 1 , Figures 5-7In one embodiment of the present invention, the liquid storage tank 7 is located below the counterweight 6. The liquid storage tank 7 is equipped with a pneumatic telescopic rod 15, which includes a vertical cylinder 1501 and a support rod 1503. The lower end of the support rod 1503 is closed. One end of the support rod 1503 inside the vertical cylinder 1501 is equipped with a first sealing piston 1502, and the other end is equipped with a tray 16 perpendicular to the counterweight 6. The liquid storage tank 7 is equipped with a gas control cylinder 18. The float plate 19, the air control cylinder 18 includes a cylindrical component 1801, a second sealing piston 1802 disposed in the cylindrical component 1801 and a column 1803 disposed on the second sealing piston 1802, the end of the column 1803 away from the second sealing piston 1802 is fixedly connected to the float plate 19, an air guide pipe 17 is provided between the cylindrical component 1801 and the vertical cylinder 1501, a counterweight block 20 is provided on the float plate 19, and a limiting block 12 is provided at the upper end of the sliding rod 8; When the balance of the counterweight liquid inside the storage tank 7 is in the initial state (i.e., no counterweight liquid is pumped into the liquid placement chamber 11), the pneumatic telescopic rod 15 is in the air-injected extension state, and the counterweight 6 is located in the reference position under the support of the tray 16 (i.e., the position of the counterweight 6 is restricted by the limiting block 12). After the embroidered fabric is clamped, the length of the abutment rod 9 is adjusted so that its two ends contact and abut against the inclined sides of the two wedge-shaped pieces 5 respectively, and then the counterweight liquid is pumped into the liquid placement chamber 11.

[0035] In this embodiment, when the counterweight liquid is pumped into the liquid chamber 11, the liquid level of the counterweight liquid in the storage tank 7 drops. The float 19 moves down under the action of the counterweight block 20, thereby pulling down the second sealing piston 1802. The downward movement of the second sealing piston 1802 causes air to be drawn from the inside of the vertical cylinder 1501. Under the action of low air pressure, the support rod 1503 retracts into the inside of the vertical cylinder 1501, thereby driving the tray 16 to move down to the set position and no longer support the counterweight 6. After the embroidery is completed, the counterweight liquid in the liquid chamber 11 is pumped back into the storage tank 7, and the liquid level of the counterweight liquid in the storage tank 7 rises, causing the float 19 to rise and reset. The rise of the float 19 drives the second sealing piston 1802 to move up, thereby injecting air into the inside of the vertical cylinder 1501. Under the action of high air pressure, the support rod 1503 moves up and pushes the counterweight 6 through the tray 16 to reset it. After the counterweight 6 is reset, the embroidered fabric can be removed.

[0036] It should be noted that the inner diameter of the vertical cylinder 1501 is relatively small, while the inner diameter of the cylindrical component 1801 is relatively large. The liquid level of the counterweight fluid can vary within a small range to meet the required intake / exhaust volume of the pneumatic telescopic rod 15 to extend and retract to the desired position, thus avoiding the generation of supporting force on the counterweight 6 during embroidery operations.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fabric embroidery positioning mechanism, comprising a base frame (1), characterized in that, The base frame (1) is provided with a slide rail (2), and the slide rail (2) is provided with two sets of slidable clamping components (3). Both sets of clamping components (3) are provided with connecting rods (4), and both connecting rods (4) are provided with wedge-shaped parts (5). The positioning mechanism also includes a counterweight (6) provided between the two wedge-shaped parts (5). The inclined sides of the two wedge-shaped parts (5) are facing the counterweight (6). The bottom of the base frame (1) is provided with several sliding rods (8) that pass through the counterweight (6). The counterweight (6) is provided with a liquid-filling chamber (11) for injecting counterweight liquid. The counterweight (6) is provided with an adjustable-length abutment rod (9). The two ends of the abutment rod (9) can abut against the inclined sides of the two wedge-shaped parts (5) respectively.

2. The fabric embroidery positioning mechanism according to claim 1, characterized in that, The clamping assembly (3) includes a strip frame (301), a pressure plate (302) disposed inside the strip frame (301), and a plurality of telescopic members (303) disposed on the strip frame (301), wherein the telescopic end of the telescopic member (303) is connected to the pressure plate (302).

3. The fabric embroidery positioning mechanism according to claim 1, characterized in that, The abutment rod (9) includes a sleeve (901), two support rods (902) inserted from both ends of the sleeve (901) respectively, and a bidirectional threaded rod (903) rotatably disposed in the sleeve (901). The two segments of the bidirectional threaded rod (903) with opposite thread directions are threaded into the two support rods (902) respectively. The support rods (902) are adapted to the sleeve (901), and the radial cross sections of the sleeve (901) and the support rods (902) are both square. The sleeve (901) is provided with a handwheel (904) for rotating the bidirectional threaded rod (903).

4. The fabric embroidery positioning mechanism according to claim 3, characterized in that, Both of the two support rods (902) are provided with rollers (10) at one end outside the sleeve (901), and both of the two wedges (5) are provided with grooves (21) that are adapted to the rollers (10) on their inclined sides.

5. The fabric embroidery positioning mechanism according to claim 1, characterized in that, The base frame (1) is provided with a liquid storage tank (7) filled with counterweight liquid. The liquid storage tank (7) is provided with a bidirectional pump (13), and a liquid guide pipe (14) is provided between the bidirectional pump (13) and the liquid placement chamber (11).

6. The fabric embroidery positioning mechanism according to claim 5, characterized in that, The liquid storage tank (7) is located below the counterweight (6). The liquid storage tank (7) is provided with a pneumatic telescopic rod (15). The pneumatic telescopic rod (15) includes a vertical cylinder (1501) and a support rod (1503). The lower end of the support rod (1503) is closed. One end of the support rod (1503) inside the vertical cylinder (1501) is provided with a first sealing piston (1502), and the other end is provided with a tray (16) that is perpendicular to the counterweight (6). The liquid storage tank (7) is provided with a gas control cylinder (18) and a float plate (19). The air control cylinder (18) includes a cylindrical component (1801), a second sealing piston (1802) disposed in the cylindrical component (1801), and a column (1803) disposed on the second sealing piston (1802). The end of the column (1803) away from the second sealing piston (1802) is fixedly connected to the float plate (19). An air guide pipe (17) is provided between the cylindrical component (1801) and the vertical cylinder (1501). A counterweight block (20) is provided on the float plate (19). A limiting block (12) is provided at the upper end of the slide rod (8). When the balance of the counterweight liquid inside the storage tank (7) is in the initial state, the pneumatic telescopic rod (15) is in the air-injected extension state, and the counterweight (6) is located at the reference position under the support of the tray (16).

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