Computer embroidery machine head structure with high stability

Abstract

The utility model discloses a computerized embroidery machine head structure with high stability, and relates to the technical field of embroidery machines.The computerized embroidery machine head structure comprises a machine head, a sliding rod is fixedly mounted at the top of the inner wall of the machine head, a thread feeding driving block and a corner pressing driving block are slidably arranged on the sliding rod in a sleeving mode, a port is formed in one side of the machine head, and an end cover is fixedly mounted on the port; a mounting base hole is formed in the middle position of the end cover, the inner wall of the mounting base hole is rotationally connected with a driving shaft through a bearing, and a first reciprocating mechanism used for driving a thread feeding driving block to reciprocate is fixedly mounted on one side of the outer wall of the driving shaft. The maintenance cost of the whole machine is reduced, the static cloth pressing time is formed, the balance is achieved in the machine head cavity, centrifugal force generated by rotation operation of the cam assembly is counteracted, the stability of the whole embroidery machine table is improved, the contact load between the connecting rods can be reduced, and the service life of the connecting rod assembly and even the whole machine head is prolonged.

Description

Technical Field

[0001] This invention relates to the field of embroidery machine technology, and in particular to a highly stable computer embroidery machine head structure. Background Technology

[0002] Embroidery machines, also known as computerized embroidery machines, are the most advanced embroidery machinery currently available. They enable traditional hand embroidery to be completed at high speed and efficiency, and can also achieve the requirements of "multi-layer, multi-functional, uniform and perfect" that hand embroidery cannot reach. It is also an electromechanical product that embodies a variety of high-tech features.

[0003] Currently, with computer embroidery replacing hand embroidery, computer embroidery machines will become the main type of machine in the embroidery industry. Existing embroidery machines use multiple embroidery machine heads for embroidery operations. The embroidery machine heads use cam assemblies to drive the thread feeding drive block. However, the rotation of the cam assembly generates centrifugal force. The more embroidery machine heads there are, the greater the centrifugal force becomes, which can easily cause the entire embroidery machine to shake and the embroidery to become unstable. Therefore, it is urgent to design a computer embroidery machine head structure with high stability to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a highly stable computerized embroidery machine head structure. Its advantages lie in creating a static fabric pressing time, which allows the head cavity to reach equilibrium, counteracting the centrifugal force generated by the rotation of the cam assembly, improving the overall stability of the embroidery machine platform, and ensuring stable embroidery.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A highly stable computer embroidery machine head structure includes a machine head. A slide rod is fixedly installed on the top of the inner wall of the machine head, and a thread feeding drive block and a corner pressing drive block are slidably sleeved on the slide rod. A port is provided on one side of the machine head, and an end cover is fixedly installed on the port. A mounting base hole is opened in the middle of the end cover, and a drive shaft is rotatably connected to the inner wall of the mounting base hole through a bearing. A first reciprocating mechanism for driving the thread feeding drive block to reciprocate is fixedly installed on one side of the outer wall of the drive shaft, and a second reciprocating mechanism for driving the corner pressing drive block to reciprocate is fixedly installed on the other side of the outer wall of the drive shaft.

[0007] The above technical solutions achieve balance within the machine head cavity, counteracting the centrifugal force generated by the rotation of the cam assembly, improving the stability of the entire embroidery machine platform, and ensuring stable embroidery.

[0008] The present invention is further configured such that the first reciprocating mechanism includes a second cam fixedly installed on one side of the outer wall of the drive shaft, and a second pusher is slidably sleeved on the second cam, and one end of the second pusher is rotatably connected to one end of the wire feeding drive block to a first connecting rod assembly.

[0009] The above technical solution involves using a drive shaft to rotate the second cam, which in turn drives the first reciprocating mechanism to perform eccentric reciprocating motion.

[0010] The present invention is further configured such that the first connecting rod assembly includes a first connecting pin installed at one end of the second propulsion frame, and one end of the first connecting pin is rotatably connected to a connecting rod E via a bearing. A second connecting pin is installed at the top end of the connecting rod E. A third connecting pin is installed at one end of the wire feeding drive block. The third connecting pin and the second connecting pin are rotatably connected to a connecting rod F via a bearing.

[0011] The above technical solution involves using the E-link and F-link to form the first link assembly, and connecting the first link assembly with bearings to ensure smooth and unobstructed rotation.

[0012] The present invention is further configured such that the second reciprocating mechanism includes a first cam fixedly installed on the other side of the outer wall of the drive shaft, and a first pusher is slidably sleeved on the first cam, and one end of the first pusher is rotatably connected to the bottom of the pressure angle drive block by a second connecting rod assembly.

[0013] The above technical solution involves using a drive shaft to rotate the first cam, which in turn drives the second reciprocating mechanism to perform eccentric reciprocating motion.

[0014] The present invention is further configured such that the second linkage assembly includes a mounting hole formed on the machine head, and a mounting shaft is mounted on the inner wall of the mounting hole. A B linkage is rotatably connected to the outer wall of the mounting shaft via a bearing. A fourth connecting pin is mounted on the top end of the B linkage. A fifth connecting pin is mounted on the bottom of the pressure angle drive block. A D linkage is rotatably connected between the fifth connecting pin and the fourth connecting pin via a bearing.

[0015] The present invention is further configured such that a sixth connecting pin is installed at the bottom end of the B connecting rod, and one end of the sixth connecting pin is rotatably connected to the C connecting rod via a bearing; a seventh connecting pin is installed at one end of the C connecting rod, and the middle position of the outer wall of the seventh connecting pin is rotatably connected to one end of the first propulsion frame via a bearing.

[0016] The above technical solution involves the use of a positioning shaft, B-link, C-link, and D-link to form the entire second link assembly, which is then connected via bearings to ensure smooth and unobstructed rotation.

[0017] The present invention is further configured such that positioning holes are provided on both sides of the machine head, and positioning shafts are installed on the inner walls of the positioning holes, and the bottom end of the E-link is rotatably connected to the outer wall of the positioning shafts through bearings.

[0018] The present invention is further configured such that a connecting rod A is rotatably connected to one side of the outer wall of the seventh connecting pin via a bearing, and the bottom end of the connecting rod A is rotatably connected to the outer wall of the positioning shaft via a bearing.

[0019] The above technical solution allows for coaxial positioning of link A and link E via a positioning shaft, facilitating the positioning of the two reciprocating mechanisms.

[0020] The present invention is further configured such that the first propulsion frame and the second propulsion frame are both composed of a rotating sleeve and a rod frame, and the two rotating sleeves are respectively sleeved on the outer walls of the first cam and the second cam. One end of one rod frame is rotatably connected to the middle position of the outer wall of the seventh connecting pin through a bearing, and the first connecting pin is installed on one end of the other rod frame.

[0021] The above technical solutions facilitate the reciprocating motion of the first and second propulsion frames as a whole.

[0022] The present invention is further configured such that guide holes are provided at the middle positions of the wire feeding drive block and the pressure angle drive block, and sliding sleeves are installed on the inner walls of the guide holes, and the sliding sleeves are fitted on the sliding rods.

[0023] The above technical solution allows the wire feeding drive block and the angle pressing drive block to move more smoothly due to the smooth performance of the sliding sleeve.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. In this invention, a drive shaft drives the second cam in the first reciprocating mechanism to rotate. When the second cam is working, it drives the first connecting rod assembly to reciprocate, causing the E connecting rod to form a pulling motion posture. The F connecting rod, which is connected to the top of the E connecting rod, drives the thread feeding drive block to reciprocate on the slide rod, realizing continuous thread feeding operation. It also makes the second cam and the second push frame smoothly transmitted, with almost no impact force points, which can improve the balance of the embroidery machine on the embroidery and reduce the maintenance cost of the whole machine.

[0026] 2. In this invention, the coaxial action of the drive shaft drives the first cam in the second reciprocating mechanism to rotate synchronously. The motion postures of the first cam and the second cam are set to be opposite. When the first cam rotates, it drives the second connecting rod assembly to move, causing the A connecting rod to reciprocate and swing, forming a pulling motion posture. At this time, the C connecting rod, which is rotated at the top of the A connecting rod and one end of the first push frame, drives the B connecting rod to reciprocate, causing the B connecting rod to twist. Finally, the D connecting rod, which is hinged to the top of the B connecting rod, drives the pressure angle drive block to reciprocate on the slide rod, so that the D connecting rod forms a gap stop point in the movement of different arc degrees, and also causes the pressure angle drive block to perform intermittent movement, forming a static pressing time, thereby achieving balance in the machine head cavity, counteracting the centrifugal force generated by the rotation of the cam assembly, improving the stability of the entire embroidery machine table, and ensuring the stability of the embroidery.

[0027] 3. This invention, through the arrangement of multiple sets of bearings, can greatly reduce the contact load between each connecting rod, making the rotation between each connecting rod smooth and unobstructed, and improving the service life of the connecting rod assembly and even the entire machine head. Attached Figure Description

[0028] Figure 1 This is a front view of a highly stable computer embroidery machine head structure proposed in this invention;

[0029] Figure 2 This is a perspective view of a highly stable computer embroidery machine head structure proposed in this invention;

[0030] Figure 3 This is a schematic diagram of the head structure of a computer embroidery machine with high stability proposed in this invention;

[0031] Figure 4 This is a schematic diagram of the first and second pusher frames of a computer embroidery machine head structure with high stability proposed in this invention.

[0032] Figure 5 This is a schematic diagram of the A-link and C-link structure of a computer embroidery machine head structure with high stability proposed in this invention;

[0033] Figure 6 This is a schematic diagram of the F-link and E-link structure of a computer embroidery machine head structure with high stability proposed in this invention;

[0034] Figure 7 This is an exploded view of the connecting rod of a computer embroidery machine head structure with high stability proposed in this invention;

[0035] Figure 8 This is a front view of the connecting rods of a highly stable computer embroidery machine head structure proposed in this invention.

[0036] In the diagram: 1. Headstock; 2. Drive shaft; 3. First cam; 4. Second cam; 5. Wire feeding drive block; 6. Slide rod; 7. Angle pressing drive block; 8. First push frame; 9. Second push frame; 10. Positioning hole; 11. Mounting hole; 12. End cover; 13. Positioning shaft; 14. Link A; 15. Link C; 16. Mounting shaft; 17. Link B; 18. Link D; 19. Link F; 20. Link E. Detailed Implementation

[0037] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Reference Figure 1-8A highly stable computer embroidery machine head structure includes a machine head 1. A slide rod 6 is fixedly installed on the top of the inner wall of the machine head 1, and a thread feeding drive block 5 and a corner pressing drive block 7 are slidably sleeved on the slide rod 6. Guide holes are opened at the middle positions of the thread feeding drive block 5 and the corner pressing drive block 7, and slide sleeves are installed on the inner walls of the guide holes. The slide sleeves are sleeved on the slide rod 6. A port is provided on one side of the machine head 1, and an end cover 12 is fixedly installed on the port. A mounting base hole is opened at the middle position of the end cover 12, and a drive shaft 2 is rotatably connected to the inner wall of the mounting base hole through a bearing. A drive shaft 2 is fixedly installed on one side of the outer wall of the drive shaft 2. A first reciprocating mechanism is used to drive the wire feeding drive block 5 to reciprocate, and a second reciprocating mechanism is fixedly installed on the other side of the outer wall of the drive shaft 2 to drive the angle pressing drive block 7 to reciprocate. The second reciprocating mechanism includes a first cam 3 fixedly installed on the other side of the outer wall of the drive shaft 2, and a first pusher 8 is slidably sleeved on the first cam 3. One end of the first pusher 8 is rotatably connected to the bottom of the angle pressing drive block 7 by a second connecting rod assembly. The second connecting rod assembly includes a mounting hole 11 opened on the machine head 1, and a mounting shaft 16 is installed on the inner wall of the mounting hole 11. A B connecting rod is rotatably connected to the outer wall of the mounting shaft 16 through a bearing. 17. A fourth connecting pin is installed at the top of B-link 17, and a fifth connecting pin is installed at the bottom of the pressure angle drive block 7. A D-link 18 is rotatably connected to the fifth and fourth connecting pins via a bearing. A sixth connecting pin is installed at the bottom of B-link 17, and one end of the sixth connecting pin is rotatably connected to C-link 15 via a bearing. A seventh connecting pin is installed at one end of C-link 15, and the middle position of the outer wall of the seventh connecting pin is rotatably connected to one end of the first push frame 8 via a bearing. The drive shaft 2 drives the first cam 3 in the second reciprocating mechanism to rotate. When the first cam 3 rotates, it drives the second... The movement of the linkage assembly causes the A linkage 14 to reciprocate, forming a pulling motion posture. At this time, the C linkage 15, which is rotated at the top of the A linkage 14 and one end of the first push frame 8, drives the B linkage 17 to reciprocate, causing the B linkage 17 to twist. Finally, the D linkage 18, which is hinged to the top of the B linkage 17, drives the pressure angle drive block 7 to reciprocate on the slide rod 6. This causes the D linkage 18 to form gap pauses in different arc movements, and also causes the pressure angle drive block 7 to perform intermittent movements, forming a static pressing time, thereby achieving balance in the machine head 1 cavity and counteracting the centrifugal force generated by the rotation of the cam assembly.

[0042] To achieve continuous wire picking and feeding operations, refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7The first reciprocating mechanism includes a second cam 4 fixedly installed on one side of the outer wall of the drive shaft 2, and a second pusher 9 slidably sleeved on the second cam 4. One end of the second pusher 9 is rotatably connected to one end of the wire feeding drive block 5 via a first connecting rod assembly. The first connecting rod assembly includes a first connecting pin installed at one end of the second pusher 9, and one end of the first connecting pin is rotatably connected to an E-link 20 via a bearing. A second connecting pin is installed at the top of the E-link 20. A third connecting pin is installed at one end of the wire feeding drive block 5. The third connecting pin and the second connecting pin are rotatably connected to an F-link 19 via a bearing. The drive shaft 2 drives the second cam 4 in the first reciprocating mechanism to rotate. When the second cam 4 is working, it will drive the first connecting rod assembly to reciprocate, so that the E-link 20 forms a pulling motion posture. Through the F-link 19 connected to the top of the E-link 20, the wire feeding drive block 5 is driven to reciprocate on the slide bar 6 to realize continuous wire picking and feeding operation.

[0043] To locate the two reciprocating mechanisms, refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 Positioning holes 10 are provided on both sides of the machine head 1, and a positioning shaft 13 is installed on the inner wall of the positioning hole 10. The bottom end of the E connecting rod 20 is rotatably connected to the outer wall of the positioning shaft 13 through a bearing. The outer wall of the seventh connecting pin is rotatably connected to the A connecting rod 14 through a bearing, and the bottom end of the A connecting rod 14 is rotatably connected to the outer wall of the positioning shaft 13 through a bearing. The positioning shaft 13 is used to coaxially position the A connecting rod 14 and the E connecting rod 20, which facilitates the positioning of the two reciprocating mechanisms.

[0044] In order to achieve the reciprocating motion of the first propulsion frame 8 and the second propulsion frame 9, refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 The first propulsion frame 8 and the second propulsion frame 9 are both composed of rotating sleeves and rods. The two rotating sleeves are respectively fitted on the outer walls of the first cam 3 and the second cam 4. One end of one rod is rotatably connected to the middle position of the outer wall of the seventh connecting pin through a bearing. The first connecting pin is installed at one end of the other rod. When the first cam 3 and the second cam 4 rotate, they will drive the two rotating sleeves to make eccentric movements, thereby driving the entire first propulsion frame 8 and the entire second propulsion frame 9 to make reciprocating movements.

[0045] Working principle: During use, the drive shaft 2 is rotated by the drive component of the embroidery machine, which in turn rotates the second cam 4 in the first reciprocating mechanism. When the second cam 4 is working, it drives the first connecting rod assembly to reciprocate, causing the E connecting rod 20 to be in a pulling motion posture. Through the F connecting rod 19 connected to the top of the E connecting rod 20, the thread feeding drive block 5 is driven to reciprocate on the slide rod 6, realizing continuous thread feeding. Then, through the coaxial action of the drive shaft 2, the first cam 3 in the second reciprocating mechanism is driven to rotate synchronously, and the motion postures of the first cam 3 and the second cam 4 are set to be opposite. When rotated, the second linkage assembly will move, causing the A linkage 14 to reciprocate and swing, forming a pulling motion posture. At this time, the C linkage 15, which is located at the top of the A linkage 14 and one end of the first push frame 8, will drive the B linkage 17 to reciprocate, causing the B linkage 17 to twist. Finally, the D linkage 18, which is hinged to the top of the B linkage 17, will drive the pressure angle drive block 7 to reciprocate on the slide rod 6, so that the D linkage 18 forms a gap stop point in the movement of different arc degrees, and also causes the pressure angle drive block 7 to perform intermittent movement, forming a static pressing time, thereby achieving the balance inside the machine head 1 cavity.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A highly stable computer embroidery machine head structure, comprising a machine head (1), characterized in that, A slide rod (6) is fixedly installed on the top of the inner wall of the machine head (1), and a wire feeding drive block (5) and a corner pressing drive block (7) are slidably sleeved on the slide rod (6). A port is provided on one side of the machine head (1), and an end cover (12) is fixedly installed on the port. An installation base hole is opened in the middle of the end cover (12), and a drive shaft (2) is rotatably connected to the inner wall of the installation base hole through a bearing. A first reciprocating mechanism for driving the wire feeding drive block (5) to reciprocate is fixedly installed on one side of the outer wall of the drive shaft (2), and a second reciprocating mechanism for driving the corner pressing drive block (7) to reciprocate is fixedly installed on the other side of the outer wall of the drive shaft (2).

2. The highly stable computer embroidery machine head structure according to claim 1, characterized in that, The first reciprocating mechanism includes a second cam (4) fixedly installed on one side of the outer wall of the drive shaft (2), and a second pusher (9) is slidably sleeved on the second cam (4). One end of the second pusher (9) is rotatably connected to one end of the wire feeding drive block (5) with a first connecting rod assembly.

3. The highly stable computer embroidery machine head structure according to claim 2, characterized in that, The first connecting rod assembly includes a first connecting pin installed at one end of the second pusher (9), and one end of the first connecting pin is rotatably connected to an E connecting rod (20) via a bearing. A second connecting pin is installed at the top end of the E connecting rod (20). A third connecting pin is installed at one end of the wire feeding drive block (5). The third connecting pin and the second connecting pin are rotatably connected to an F connecting rod (19) via a bearing.

4. The highly stable computer embroidery machine head structure according to claim 3, characterized in that, The second reciprocating mechanism includes a first cam (3) fixedly installed on the other side of the outer wall of the drive shaft (2), and a first pusher (8) is slidably sleeved on the first cam (3). One end of the first pusher (8) is rotatably connected to the bottom of the pressure angle drive block (7) with a second connecting rod assembly.

5. The highly stable computer embroidery machine head structure according to claim 4, characterized in that, The second linkage assembly includes a mounting hole (11) opened on the machine head (1), and a mounting shaft (16) is installed on the inner wall of the mounting hole (11). A B linkage (17) is rotatably connected to the outer wall of the mounting shaft (16) through a bearing. A fourth connecting pin is installed at the top of the B linkage (17), and a fifth connecting pin is installed at the bottom of the pressure angle drive block (7). A D linkage (18) is rotatably connected between the fifth connecting pin and the fourth connecting pin through a bearing.

6. The highly stable computer embroidery machine head structure according to claim 5, characterized in that, The bottom end of the B connecting rod (17) is equipped with a sixth connecting pin, and one end of the sixth connecting pin is rotatably connected to the C connecting rod (15) through a bearing. One end of the C connecting rod (15) is equipped with a seventh connecting pin, and the middle position of the outer wall of the seventh connecting pin is rotatably connected to one end of the first propulsion frame (8) through a bearing.

7. The highly stable computer embroidery machine head structure according to claim 6, characterized in that, The machine head (1) has positioning holes (10) on both sides, and a positioning shaft (13) is installed on the inner wall of the positioning hole (10). The bottom end of the E-link (20) is rotatably connected to the outer wall of the positioning shaft (13) through a bearing.

8. The highly stable computer embroidery machine head structure according to claim 7, characterized in that, The outer wall of the seventh connecting pin is rotatably connected to a connecting rod (14) via a bearing, and the bottom end of the connecting rod (14) is rotatably connected to the outer wall of the positioning shaft (13) via a bearing.

9. The highly stable computer embroidery machine head structure according to claim 8, characterized in that, The first propulsion frame (8) and the second propulsion frame (9) are both composed of a rotating sleeve and a rod frame. The two rotating sleeves are respectively fitted on the outer walls of the first cam (3) and the second cam (4). One end of one rod frame is rotatably connected to the middle position of the outer wall of the seventh connecting pin through a bearing. The first connecting pin is installed at one end of the other rod frame.

10. The highly stable computer embroidery machine head structure according to claim 1, characterized in that, The middle position of the wire feeding drive block (5) and the middle position of the angle pressing drive block (7) are both provided with guide holes, and the inner wall of the guide holes is equipped with a sliding sleeve, which is sleeved on the slide rod (6).

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