Parallel mechanism for embroidery machine

Abstract

The utility model discloses a parallel mechanism for an embroidery machine, which relates to the technical field of embroidery machines, and comprises a base plate, preformed holes and mounting holes, the preformed holes are positioned in the middle of the base plate, the mounting holes are positioned on the inner side of the base plate, a plurality of mounting holes are annularly distributed on the side of the base plate at equal intervals, and four mounting holes form a group. Three groups of mounting holes are formed in the inner side of the base plate; the parallel mechanism for the embroidery machine is provided with a piston structure, embroidery needle blades slide downwards while a fixing sleeve slides downwards, when embroidery needles make contact with cloth, supporting blocks make contact with the cloth, the three supporting blocks make contact with the cloth at the same time, and the three supporting blocks support the cloth at the same time; the motion amplitude of the cloth among the three supporting blocks is reduced, the stability of the processing position of the embroidery needle on the cloth is kept, and the influence on the overall embroidery quality caused by the displacement of the cloth in the embroidery process is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery machines, in particular to a parallel mechanism used for embroidery machines. Background Art

[0002] An embroidery machine is an automated machine used to sew patterns or designs onto fabric or other materials in the form of embroidery.

[0003] For example, an embroidery machine head with publication number CN214060896U includes a head housing, a guide rod is vertically fixed at the front of the head housing, a presser foot driver and a needle bar driver are axially spaced and movably arranged on the guide rod, the needle bar driver is connected to the needle bar driving mechanism, and the presser foot driver is connected to the presser foot driving mechanism. The utility model switches the needle bar to a state of being connected to drop the needle and disconnected from not dropping the needle during high-speed embroidery. When the needle bar is not required to drop the needle, the needle bar is disconnected from the needle bar driver to avoid the high-speed needle bar hitting the presser foot and damaging mechanical parts. To reconnect the needle bar and make it fall again, the clutch structure only needs to be rotated to the initial position, and the needle bar is driven to continue to fall by the needle bar driver. The utility model has a high degree of automation, and the connection or disconnection switching of the needle bar is simple and fast, with strong practicality and stability, reducing the loss of needle bar dropping due to lock motor failure.

[0004] An embroidery machine head in the above technical solution reduces the loss of needle bar needle drop caused by the failure of the locking motor by connecting or disconnecting the needle bar. In the actual production process, when the embroidery machine is in operation, it is generally adopted to process the fabric in a manner of equidistantly arranged multiple needles. When only a single row of needles is used to embroider the fabric, due to the elastic properties of the fabric itself, this elasticity may cause the fabric to move during the embroidery process, thereby affecting the overall quality of the embroidery. Utility Model Content

[0005] The utility model aims to provide a parallel mechanism for an embroidery machine to solve the problem in the above-mentioned background technology that the elasticity of the cloth itself may cause the cloth to shift during the embroidery process, thereby affecting the overall quality of the embroidery.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a parallel mechanism for an embroidery machine, comprising a base plate, a reserved hole, and a mounting hole, wherein the reserved hole is located in the middle of the base plate, and the mounting hole is located on the inner side of the base plate, wherein a plurality of mounting holes are arranged in an equidistant annular distribution on the side of the base plate, and four mounting holes are arranged in a group, and three groups of mounting holes are arranged on the inner side of the base plate;

[0007] The base plate is set as an equilateral triangle structure, and piston structures are provided at the corners of the base plate, the piston structure includes a fixed sleeve fixedly connected to the corners of the top of the base plate, and a piston rod is slidably connected inside the fixed sleeve, the upper end of the piston rod is fixedly connected to a connecting seat, and the lower end of the piston rod is fixedly connected to a spring, and one end of the spring away from the piston rod is fixedly connected to the top of the base plate, and the lower end of the piston rod is fixedly connected to an extension rod, and the extension rod is located inside the spring;

[0008] A linkage structure for linking the three piston structures is provided on the top of the base plate.

[0009] Preferably, openings are provided at corners of the substrate, and the interior of the openings is slidably connected to the extension rod, and a support block is fixedly connected to the bottom of the extension rod, and the support block is made of elastic material.

[0010] Preferably, a mounting groove distributed in a ring shape is provided on the top of the base plate, and the mounting groove is located outside the top of the reserved hole. An anti-collision ring is fixedly connected inside the mounting groove, and the anti-collision ring is made of elastic material.

[0011] Preferably, a connecting rod is rotatably connected inside the connecting seat, and a connecting sleeve is fixedly connected to one end of the connecting rod away from the connecting seat. Three connecting rods are provided, and the inner ends of the three connecting rods extend toward the direction of the linkage structure.

[0012] Preferably, the linkage structure is provided with a linkage plate, and the linkage plate is set to an equilateral triangle structure, and the linkage plate is vertically distributed relative to the base plate in a direction.

[0013] Preferably, three connecting rods distributed in an annular shape are fixedly connected to the outer side of the linkage plate, and the outer side of the connecting rods is rotatably connected to the inside of the connecting sleeve, and the connecting sleeve has a certain sliding space on the outer side of the connecting rods.

[0014] Preferably, a pinhole is provided in the middle of the linkage plate, and three positioning holes are provided in a circular shape inside the linkage plate, and the positioning holes are distributed outside the pinhole. The linkage plate is located as a whole on the top of the reserved hole, and the projections of the pinhole and the positioning holes do not interfere with the substrate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The parallel mechanism for an embroidery machine is provided with a piston structure. When the fixing sleeve slides downward, the embroidery needle slides downward. When the embroidery needle contacts the cloth, the support block contacts the cloth at the same time. The three support blocks contact the cloth at the same time. The three support blocks support the cloth at the same time, reducing the movement amplitude of the cloth between the three support blocks, maintaining the stability of the processing position of the embroidery needle on the cloth, and preventing the cloth from being displaced during the embroidery process to affect the overall quality of the embroidery.

[0017] Furthermore, a linkage structure is provided, and the linkage plate as a whole is connected to the piston structure through a connecting rod, and when the linkage plate moves, multiple piston structures can be driven to move simultaneously, and the linkage plate and the connecting sleeve are not rigidly connected, and the connection between the connecting rod and the piston rod is also non-rigidly connected;

[0018] Furthermore, the embroidery machine needs to perform a large amount of vertical reciprocating motion when performing embroidery operations. Through the non-rigid connection between the connecting rod and the piston rod and between the linkage plate and the connecting sleeve, the connecting rod, the piston rod, the linkage plate and the connecting sleeve follow the movement of the embroidery machine. Through the movable connection mode of the parts connecting rod, the piston rod, the linkage plate and the connecting sleeve, when the connecting rod, the piston rod, the linkage plate and the connecting sleeve are subjected to force, the overall flexibility is improved through the slight movement of the connection, thereby improving the service life of the parallel mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the substrate structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing sleeve of the utility model;

[0023] Figure 5 This is a schematic diagram of the connecting rod structure of the utility model;

[0024] Figure 6 It is a schematic diagram of the linkage plate structure of the utility model.

[0025] In the figure: 1. Base plate; 2. Reserved hole; 3. Mounting hole; 4. Mounting groove; 5. Anti-collision ring; 6. Fixing sleeve; 7. Piston rod; 8. Connecting seat; 9. Spring; 10. Extension rod; 11. Support block; 12. Connecting rod; 13. Connecting sleeve; 14. Linkage plate; 15. Connecting rod; 16. Needle hole; 17. Positioning hole. DETAILED DESCRIPTION

[0026] 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.

[0027] Embodiment 1:

[0028] See also Figure 1 - Figure 6 , the utility model provides the following technical solutions:

[0029] A parallel mechanism for an embroidery machine, comprising a base plate 1, a reserved hole 2, and a mounting hole 3, wherein the reserved hole 2 is located in the middle of the base plate 1, and the mounting hole 3 is located at the inner side of the base plate 1, a plurality of mounting holes 3 are arranged at the side of the base plate 1 in an equidistant annular distribution, and four mounting holes 3 are arranged in a group, and three groups of mounting holes 3 are arranged at the inner side of the base plate 1;

[0030] The base plate 1 is set to an equilateral triangle structure, and the corners of the base plate 1 are provided with piston structures, the piston structure includes a fixed sleeve 6 fixedly connected to the top corner of the base plate 1, and a piston rod 7 is slidably connected inside the fixed sleeve 6, the upper end of the piston rod 7 is fixedly connected to a connecting seat 8, and the lower end of the piston rod 7 is fixedly connected to a spring 9, and the end of the spring 9 away from the piston rod 7 is fixedly connected to the top of the base plate 1, and the lower end of the piston rod 7 is fixedly connected to an extension rod 10, and the extension rod 10 is located inside the spring 9;

[0031] A linkage structure for linking the three piston structures is provided on the top of the base plate 1 .

[0032] The corners of the substrate 1 are all provided with openings, and the interior of the openings is slidably connected to the extension rod 10 . The bottom of the extension rod 10 is fixedly connected to a support block 11 , and the support block 11 is made of elastic material.

[0033] A mounting groove 4 in a ring shape is provided on the top of the base plate 1 , and the mounting groove 4 is located outside the top of the reserved hole 2 , and an anti-collision ring 5 is fixedly connected inside the mounting groove 4 , and the anti-collision ring 5 is made of elastic material.

[0034] A connecting rod 12 is rotatably connected inside the connecting seat 8, and one end of the connecting rod 12 away from the connecting seat 8 is fixedly connected to a connecting sleeve 13. Three connecting rods 12 are provided, and the inner ends of the three connecting rods 12 extend toward the direction of the linkage structure.

[0035] The linkage structure is provided with a linkage plate 14 , and the linkage plate 14 is set to an equilateral triangle structure, and the linkage plate 14 is vertically distributed relative to the base plate 1 in a direction.

[0036] Three connecting rods 15 distributed in an annular shape are fixedly connected to the outside of the linkage plate 14 , and the outside of the connecting rods 15 is rotatably connected to the inside of the connecting sleeve 13 , and the connecting sleeve 13 has a certain sliding space outside the connecting rods 15 .

[0037] A pinhole 16 is provided in the middle of the linkage plate 14, and three positioning holes 17 distributed in a ring shape are provided inside the linkage plate 14, and the positioning holes 17 are distributed outside the pinhole 16. The linkage plate 14 is located as a whole at the top of the reserved hole 2, and the projections of the pinhole 16 and the positioning holes 17 do not interfere with the substrate 1.

[0038] Embodiment 2:

[0039] Based on the first embodiment, the specific working principle is as follows:

[0040] The parallel mechanism for an embroidery machine is installed on the embroidery machine as a whole through a plurality of mounting holes 3 on a base plate 1, so that the parallel mechanism as a whole is located on the embroidery head of the embroidery machine, so that the parallel mechanism is located between the embroidery head and the cloth, and the embroidery needle passes through the needle hole 16, so that the embroidery needle passes through the reserved hole 2 when moving downward, so that the base plate 1 does not interfere with the movement of the embroidery needle, and at the same time, the linkage plate 14 is installed on the bottom of the embroidery head through the positioning hole 17. During the operation of the embroidery needle, the embroidery needle will move downward periodically, and at this time, the needle head will drive the linkage plate 14 to perform vertical periodic movement;

[0041] When the linkage plate 14 performs vertical periodic motion, the linkage plate 14 will drive the connecting rod 15 to follow the linkage plate 14 to move vertically, so that the connecting rod 15 drives the connecting sleeve 13 to move vertically, and then the connecting sleeve 13 drives the connecting rod 12 to move vertically, and the connecting seat 8 is driven up and down by the connecting rod 12. When the connecting seat 8 moves up and down, the connecting seat 8 will drive the piston rod 7 to slide up and down inside the fixed sleeve 6. In the process of the fixed sleeve 6 sliding downward, the fixed sleeve 6 will drive the support block 11 and the extension rod 10 to move downward. When the fixed sleeve 6 slides downward, the embroidery needle slides downward. When the embroidery needle contacts the cloth, the support block 11 will also contact the cloth. The three support blocks 11 contact the cloth at the same time. The three support blocks 11 support the cloth at the same time, reducing the movement amplitude of the cloth between the three support blocks 11, maintaining the stability of the processing position of the embroidery needle on the cloth, and preventing the cloth from being displaced during the embroidery process, which affects the overall quality of the embroidery.

[0042] The linkage plate 14 is connected to the piston structure through the connecting rod 12 as a whole. When the linkage plate 14 moves, multiple piston structures can be driven to move simultaneously. The linkage plate 14 and the connecting sleeve 13 are non-rigidly connected, and the connection between the connecting rod 12 and the piston rod 7 is also non-rigidly connected. When the embroidery machine is performing embroidery operations, it needs to perform a large amount of vertical reciprocating motion. Through the non-rigid connection between the connecting rod 12 and the piston rod 7 and between the linkage plate 14 and the connecting sleeve 13, the connecting rod 12, the piston rod 7, the linkage plate 14 and the connecting sleeve 13 follow the movement of the embroidery machine. Through the movable connection mode of the parts connecting rod 12, the piston rod 7, the linkage plate 14 and the connecting sleeve 13, when the connecting rod 12, the piston rod 7, the linkage plate 14 and the connecting sleeve 13 are subjected to force, the slight movement of the connection improves their overall flexibility, thereby improving the service life of the parallel mechanism.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A parallel mechanism for an embroidery machine, comprising a base plate (1), a reserved hole (2), and a mounting hole (3), wherein the reserved hole (2) is located in the middle of the base plate (1), and the mounting hole (3) is located on the inner side of the base plate (1), a plurality of the mounting holes (3) are arranged in an equidistant annular pattern on the side of the base plate (1), and four mounting holes (3) are arranged in a group, and three groups of mounting holes (3) are arranged on the inner side of the base plate (1); Features: The base plate (1) is configured as an equilateral triangle structure, and piston structures are provided at the corners of the base plate (1), the piston structure comprising a fixed sleeve (6) fixedly connected to the top corner of the base plate (1), and a piston rod (7) is slidably connected inside the fixed sleeve (6), the upper end of the piston rod (7) is fixedly connected to a connecting seat (8), and the lower end of the piston rod (7) is fixedly connected to a spring (9), and one end of the spring (9) away from the piston rod (7) is fixedly connected to the top of the base plate (1), and the lower end of the piston rod (7) is fixedly connected to an extension rod (10), and the extension rod (10) is located inside the spring (9); The top of the base plate (1) is provided with a linkage structure for linking the three piston structures.

2. The parallel mechanism for an embroidery machine according to claim 1, characterized in that: The corners of the base plate (1) are all provided with openings, and the interior of the openings is slidably connected to the extension rod (10); the bottom of the extension rod (10) is fixedly connected to a support block (11), and the support block (11) is made of elastic material.

3. The parallel mechanism for an embroidery machine according to claim 2, characterized in that: The top of the base plate (1) is provided with a mounting groove (4) distributed in a ring shape, and the mounting groove (4) is located outside the top of the reserved hole (2), and an anti-collision ring (5) is fixedly connected inside the mounting groove (4), and the anti-collision ring (5) is set to an elastic material.

4. The parallel mechanism for an embroidery machine according to claim 3, characterized in that: A connecting rod (12) is rotatably connected inside the connecting seat (8), and one end of the connecting rod (12) away from the connecting seat (8) is fixedly connected to a connecting sleeve (13). Three connecting rods (12) are provided, and the inner ends of the three connecting rods (12) extend in the direction of the linkage structure.

5. The parallel mechanism for an embroidery machine according to claim 1, characterized in that: The linkage structure is provided with a linkage plate (14), and the linkage plate (14) is configured as an equilateral triangle structure, and the linkage plate (14) is arranged in a direction perpendicular to the base plate (1).

6. The parallel mechanism for an embroidery machine according to claim 5, characterized in that: The outside of the linkage plate (14) is fixedly connected with three connecting rods (15) distributed in an annular shape, and the outside of the connecting rods (15) is rotatably connected to the inside of the connecting sleeve (13), and the connecting sleeve (13) has a certain sliding space outside the connecting rods (15).

7. The parallel mechanism for an embroidery machine according to claim 6, characterized in that: A needle hole (16) is provided in the middle of the linkage plate (14), and three positioning holes (17) are provided in a ring shape inside the linkage plate (14), and the positioning holes (17) are distributed outside the needle hole (16). The linkage plate (14) is located as a whole on the top of the reserved hole (2), and the projections of the needle hole (16) and the positioning holes (17) do not interfere with the base plate (1).

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