Towel chain embroidery embroidery machine head with buffer mechanism

Abstract

The utility model discloses a towel chain embroidery machine head with a buffer mechanism, which comprises a machine body, a rotatable main shaft is arranged on the machine body, and the main shaft is connected with an external driving piece. A needle nozzle rod capable of sliding up and down is arranged on the machine body, a needle nozzle is arranged on the needle nozzle rod, the main shaft is connected with the needle nozzle rod through a needle nozzle transmission mechanism, when an external driving part drives the main shaft to rotate, the main shaft drives the needle nozzle rod to move up and down through the needle nozzle transmission mechanism, and the towel chain embroidery machine head further comprises a buffering mechanism for buffering the needle nozzle rod. The embroidery machine head for towel chain embroidery has the advantages that the buffering mechanism used for buffering the needle nozzle rod is arranged, and the buffering mechanism can buffer reverse impact force applied to the transmission mechanism by the needle nozzle rod in the working process, so that the transmission mechanism works more stably, the influence of the reverse impact force on the transmission mechanism is greatly reduced, the noise is low in the working process, and the service life of the transmission mechanism is prolonged. And the reverse impact force on the cam on the main shaft is reduced, so that the cam is not easy to damage, and the service life of the cam is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile machinery, relates to a component of an embroidery machine, and particularly relates to a towel chain embroidery embroidery head of an embroidery machine with a buffer mechanism. Background Technique

[0002] An embroidery machine is used to embroider patterns on embroidery materials (such as embroidery cloth, leather, etc.). At present, for the existing embroidery machine used for towel chain embroidery, the structure of its embroidery head is: the embroidery head includes a machine body, on which there are a main shaft and a needle bar, a presser foot bar and a nozzle bar that can slide up and down. Embroidery needles, a presser foot and a nozzle are respectively installed on the needle bar, the presser foot bar and the nozzle bar. The main shaft is connected to the output end of a main shaft motor. Needle bar transmission mechanisms, presser foot bar transmission mechanisms and nozzle bar transmission mechanisms are respectively arranged between the needle bar, the presser foot bar and the nozzle bar and the main shaft. The driving of the needle bar, the presser foot bar and the nozzle bar is all driven by the main shaft.

[0003] The disadvantages of the existing embroidery head are: the nozzle bar is directly connected to the output end of the nozzle bar transmission mechanism, and a cam is arranged on the main shaft, and the cam is connected to the input end of the nozzle bar transmission mechanism. Since the nozzle bar is directly connected to the output end of the nozzle bar transmission mechanism, during operation, the nozzle bar will apply a reverse impact force to the nozzle bar transmission mechanism, reducing the working stability of the nozzle transmission mechanism, and the noise generated during operation is also large. The cam on the main shaft will also be affected by the reverse impact force, resulting in easy damage to the cam and reducing the service life of the cam. When processing thicker embroidery materials, the reverse impact force applied by the nozzle bar to the nozzle transmission mechanism is greater, the generated noise is greater, and the cam is more likely to be damaged. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a towel chain embroidery embroidery head with a buffer mechanism to solve the above technical problems.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a towel chain embroidery embroidery head with a buffer mechanism, including a machine body, on which there is a rotatable main shaft, and the main shaft is connected to an external driving member;

[0006] A nozzle bar that can slide up and down is arranged on the machine body, a nozzle is arranged on the nozzle bar, the main shaft is connected to a needle bar through a nozzle transmission mechanism, and when the external driving member drives the main shaft to rotate, the main shaft drives the needle bar to move up and down through the nozzle transmission mechanism. The towel chain embroidery embroidery head further includes a buffer mechanism for buffering the nozzle bar.

[0007] Further, the buffer mechanism includes a sliding connecting member, a pushing member, a blocking and limiting member, and a first buffer elastic member. The sliding connecting member can slide up and down on the machine body. The output end of the needle tip transmission mechanism is connected to the sliding connecting member. The sliding connecting member includes a body. The needle tip rod is sleeved on the body of the sliding connecting member. The sliding connecting member can slide up and down along the needle tip rod. The pushing member and the blocking and limiting member are respectively installed on the needle tip rod. The body is located between the pushing member and the blocking and limiting member. The first buffer elastic member is sleeved on the needle tip rod and is located between the body and the pushing member.

[0008] Further, a first sleeving hole is provided on the body. The first sleeving hole is sleeved on the needle tip rod, and the first sleeving hole is in clearance fit with the needle tip rod.

[0009] Further, a second sleeving hole and a vertical plate are provided on the body. An extending plate is provided on the vertical plate. A third sleeving hole is provided on the extending plate. A cross plate is provided on the machine body. A guiding rod is provided on the cross plate. The second sleeving hole and the third sleeving hole are respectively sleeved on the guiding rod. The extending plate and the body are respectively located on the upper side and the lower side of the cross plate. A second buffer elastic member is sleeved on the guiding rod. The second buffer elastic member is located between the cross plate and the body.

[0010] Further, the second buffer elastic member is a second buffer spring.

[0011] Further, a connecting block is provided on the back of the vertical plate. The connecting block is connected to the output end of the needle tip transmission mechanism.

[0012] Further, the pushing member is provided with a fourth sleeving hole and a through groove. The through groove is communicated with the fourth sleeving hole. The through groove forms a clamping plate on the pushing member. A screw hole is provided on the clamping plate. The fourth sleeving hole is sleeved on the needle tip rod. The screw rod of the locking screw passes through the screw hole and is in threaded connection with the pushing member. Tightening the locking screw fixes the pushing member on the needle tip rod. When the locking screw is loosened, the pushing member can move on the needle tip rod.

[0013] Further, the first buffer elastic member is a first buffer spring.

[0014] Further, the needle tip transmission mechanism includes a crank and a connecting rod. The crank is rotatably installed in the machine body. A roller is provided at one end of the crank. The other end is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the sliding connecting member. A cam is provided on the main shaft. The cam is in cooperation with the roller.

[0015] Further, a vertically slidable needle bar is provided on the body, an embroidery needle is provided on the needle bar, and a positioning hole for the embroidery needle to pass through is provided on the needle tip.

[0016] Advantages of the present utility model: The advantages of the towel chain embroidery machine head of the present utility model are as follows: A buffer mechanism for buffering the needle tip bar is provided. During the working process, the buffer mechanism can buffer the reverse impact force exerted by the needle tip bar on the transmission mechanism, making the operation of the transmission mechanism more stable, greatly reducing the influence of the reverse impact force on the transmission mechanism, reducing the noise during operation, and also reducing the reverse impact force on the cam on the main shaft. In this way, the cam is not easily damaged, and the service life of the cam is improved. Description of the Drawings

[0017] Figure 1 is the first three-dimensional view of the towel chain embroidery machine head according to the embodiment of the present utility model.

[0018] Figure 2 is the second three-dimensional view of the towel chain embroidery machine head according to the embodiment of the present utility model.

[0019] Figure 3 is the front view of the towel chain embroidery machine head according to the embodiment of the present utility model.

[0020] Figure 4 is Figure 3 the left view of.

[0021] Figure 5 is Figure 3 the top view of.

[0022] Figure 6 is the first internal structure schematic diagram of the towel chain embroidery machine head according to the embodiment of the present utility model.

[0023] Figure 7 is Figure 6 the enlarged view of I in.

[0024] Figure 8 is the second internal structure schematic diagram of the towel chain embroidery machine head according to the embodiment of the present utility model.

[0025] Figure 9 is the first three-dimensional view of the sliding connector.

[0026] Figure 10 is the second three-dimensional view of the sliding connector.

[0027] Figure 11 is the first three-dimensional view of the pushing member.

[0028] Figure 12 is the second three-dimensional view of the pushing member.

[0029] Figure 13It is a schematic structural diagram when the guide sleeve is installed on the pushing member.

[0030] Explanation of the reference numerals:

[0031] Machine body 11, main shaft 12, guide rod 13, second buffer elastic member 14, needle nozzle rod 15, buffer mechanism 16, mounting seat 17, needle nozzle 18, needle bar 19, embroidery needle 20, crank 21, roller 22, connecting rod 23;

[0032] Cross plate 111;

[0033] Sliding connecting member 161, first buffer elastic member 162, pushing member 163, guide sleeve 164, blocking and limiting member 165;

[0034] Body 1611, first sleeve hole 1612, second sleeve hole 1613, vertical plate 1614, extending plate 1615, third sleeve hole 1616, connecting block 1617;

[0035] Fourth sleeve hole 1631, through groove 1632, clamping plate 1633, locking screw 1634, card slot 1635;

[0036] First card edge 1641, second card edge 1642, guide hole 1643. Detailed implementation manners

[0037] Next, in conjunction with the drawings of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0038] As Figures 1-5 shown, the embroidery head of the towel chain stitch embroidery machine in this embodiment includes a machine body 11, on which a rotatable main shaft 12 is installed. The main shaft 12 is connected to an external driving member, and the external driving member is designed as an external driving motor.

[0039] A needle nozzle rod 15 that can slide up and down is installed on the machine body 11. A mounting seat 17 is installed at the lower end of the needle nozzle rod 15, and a needle nozzle 18 is installed on the mounting seat 17. A positioning hole for the embroidery needle 20 to pass through is machined on the needle nozzle 18. A needle bar 19 that can slide up and down is also installed on the machine body 11, and an embroidery needle 20 is installed on the needle bar 19.

[0040] The embroidery head of the towel chain stitch embroidery machine further includes a buffer mechanism 16 for buffering the needle nozzle rod 15. Refer to Figures 6-8, the buffer mechanism 16 includes a sliding connecting member 161, a pushing member 163, a blocking and limiting member 165, and a first buffer elastic member 162. A cross plate 111 is machined on the machine body 11, and a guide rod 13 is installed on the cross plate 111. Refer to Figure 9 and Figure 10 , the sliding connecting member 161 includes a body 1611, on which a first sleeve hole 1612 and a second sleeve hole 1613 are machined. A vertical plate 1614 is also machined on the body 1611. An extending plate 1615 is machined on the vertical plate 1614, and a third sleeve hole 1616 is machined on the extending plate 1615. A connecting block 1617 is machined on the back of the vertical plate 1614. The second sleeve hole 1613 and the third sleeve hole 1616 are respectively sleeved on the guide rod 13, and the second sleeve hole 1613 and the third sleeve hole 1616 are respectively in clearance fit with the guide rod 13. In this way, the sliding connecting member 161 can slide up and down along the guide rod 13, and the extending plate 1615 and the body 1611 are respectively located on the upper side and the lower side of the cross plate 111. A second buffer elastic member 14 is sleeved on the guide rod 13, and the second buffer elastic member 14 is located between the cross plate 111 and the body 1611 of the sliding connecting member 161. The second buffer elastic member 14 is designed as a second buffer spring.

[0041] The first sleeve hole 1612 is sleeved on the nozzle rod 15, and the first sleeve hole 1612 is in clearance fit with the nozzle rod 15. The sliding connecting member 161 can slide up and down along the nozzle rod 15. The pushing member 163 and the blocking and limiting member 165 are respectively fixed on the nozzle rod 15, and the body 1611 of the sliding connecting member 161 is located between the pushing member 163 and the blocking and limiting member 165. The first buffer elastic member 162 is sleeved on the nozzle rod 15 and is located between the body 1611 and the pushing member 163. The first buffer elastic member 162 is designed as a first buffer spring. In a preferred design, refer to Figure 11 and Figure 12 , a fourth sleeve hole 1631 and a through groove 1632 are machined on the pushing member 163. The upper side and the lower side of the through groove 1632 respectively extend to both sides of the pushing member 163. One end of the through groove 1632 is connected to the fourth sleeve hole 1631. The through groove 1632 enables a clamping plate 1633 to be formed on the pushing member 163. A screw hole is machined on one side of the clamping plate 1633. The fourth sleeve hole 1631 is sleeved on the nozzle rod 15. The screw rod of the locking screw 1634 passes through the screw hole and is threadedly connected to the pushing member 163. Tightening the locking screw 1634 fixes the pushing member 163 on the nozzle rod 15. When the locking screw 1634 is loosened, the pushing member 163 can move its position on the nozzle rod 15, realizing the adjustment of the position of the pushing member 163 on the nozzle rod 15. Refer to Figure 13, a card slot 1635 is machined on the needle nozzle rod 15, a guide sleeve 164 is clamped in the card slot 1635, first card edges 1641 and second card edges 1642 are respectively machined at both ends of the guide sleeve 164, the first card edges 1641 and the second card edges 1642 clamp the pushing member 163, a guide hole 1643 is machined on the guide sleeve 164, and the guide hole 1643 is in clearance fit with the guide rod 13.

[0042] Referring to Figure 6 , the needle nozzle transmission mechanism includes a crank 21 and a connecting rod 23. The crank 21 is rotatably installed in the machine body 11. A roller 22 is installed at one end of the crank 21, and the other end is hinged to one end of the connecting rod 23. The other end of the connecting rod 23 is hinged to the connecting block 1617 of the sliding connecting member 161. A cam (not shown in the attached drawing) is sleeved on the main shaft 12, and the cam is connected and cooperated with the roller 22. When the external driving motor drives the main shaft 12 to rotate, the cam on the main shaft 12 drives the crank 21 to swing. The crank 21 drives the sliding connecting member 161 to slide up and down through the connecting rod 23, and the sliding connecting member 161 drives the needle nozzle rod 15 to slide up and down, so as to realize pressing the embroidery materials (embroidery cloth, leather, etc.) on the workbench of the embroidery machine.

[0043] The working principle of the buffer mechanism of the towel chain embroidery embroidery head of the present utility model is: Referring to Figure 6 and Figure 7 , when the needle nozzle 18 presses the embroidery material, the pushing member 163 of the buffer mechanism will push the first buffer elastic member 162 to compress, so as to buffer the reverse impact force applied by the needle nozzle rod 15 to the sliding connecting member 161, and further buffer the reverse impact force applied by the crank 21 of the needle nozzle transmission mechanism to the cam on the main shaft 12.

[0044] The advantages of the towel chain embroidery embroidery head of the present utility model are as follows: A buffer mechanism for buffering the needle nozzle rod is provided. During the working process, the buffer mechanism can buffer the reverse impact force applied by the needle nozzle rod to the transmission mechanism, making the working of the transmission mechanism more stable, greatly reducing the influence of the reverse impact force on the transmission mechanism, with less noise during work, and also reducing the reverse impact force on the cam on the main shaft. In this way, the cam and the roller of the crank are not easily damaged, and the service life of the cam is improved. Moreover, the pushing member of the buffer mechanism can adjust its position on the needle nozzle rod, so that the buffer strength can be adjusted according to the processing requirements to adapt to the requirements of different processes.

[0045] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A towel chain embroidery machine head with a buffer mechanism, comprising a machine body (11), wherein a rotatable main shaft (12) is provided on the machine body (11), and the main shaft (12) is connected to an external driving member; The machine body (11) is provided with a needle mouth rod (15) which can slide up and down, and the needle mouth rod (15) is provided with a needle mouth (18). The main shaft (12) is connected to the needle rod (19) through a needle mouth transmission mechanism. When the external driving member drives the main shaft (12) to rotate, the main shaft (12) drives the needle rod (19) to move up and down through the needle mouth transmission mechanism. The invention is characterized in that: The towel chain embroidery machine head also includes a buffer mechanism (16) for buffering the needle mouth rod (15).

2. The towel chain embroidery machine head according to claim 1, characterized in that: The buffer mechanism (16) comprises a sliding connection member (161), a pushing member (163), a blocking limit member (165) and a first buffer elastic member (162); the sliding connection member (161) can slide up and down on the machine body (11); the output end of the needle mouth transmission mechanism is connected to the sliding connection member (161); the sliding connection member (161) comprises a body (1611); the needle mouth rod (15) is sleeved on the body of the sliding connection member (161); The sliding connection member (161) can slide up and down along the needle mouth rod (15), the pushing member (163) and the blocking and limiting member (165) are respectively installed on the needle mouth rod (15), the main body (1611) is located between the pushing member (163) and the blocking and limiting member (165), and the first buffer elastic member (162) is mounted on the needle mouth rod (15) and is located between the main body (1611) and the pushing member (163).

3. The towel chain embroidery machine head according to claim 2, characterized in that: The body (1611) is provided with a first fitting hole (1612), the first fitting hole (1612) is fitted on the needle mouth rod (15), and the first fitting hole (1612) and the needle mouth rod (15) are clearance-matched.

4. The towel chain embroidery machine head according to claim 2, characterized in that: The body (1611) is provided with a second set hole (1613) and a vertical plate (1614), the vertical plate (1614) is provided with a protruding plate (1615), the protruding plate (1615) is provided with a third set hole (1616), the body (11) is provided with a transverse plate (111), the transverse plate (111) is provided with a guide rod (13), the second set hole (1613) and the third set hole (1616) are respectively set on the guide rod (13), the protruding plate (1615) and the body (1611) are respectively located at the upper side and the lower side of the transverse plate (111), the guide rod (13) is set with a second buffer elastic member (14), and the second buffer elastic member (14) is located between the transverse plate (111) and the body (1611).

5. The towel chain embroidery machine head according to claim 4, characterized in that: The second buffer elastic member (14) is a second buffer spring.

6. The towel chain embroidery machine head according to claim 4, characterized in that: A connecting block (1617) is provided on the back of the vertical plate (1614), and the connecting block (1617) is connected to the output end of the needle nozzle transmission mechanism.

7. The towel chain embroidery machine head according to claim 2, characterized in that: The pushing member (163) is provided with a fourth set hole (1631) and a through groove (1632), the through groove (1632) is connected with the fourth set hole (1631), the through groove (1632) forms a clamping plate (1633) on the pushing member (163), the clamping plate (1633) is provided with a screw hole, the fourth set hole (1631) is set on the needle mouth rod (15), the screw rod of the locking screw (1634) passes through the screw hole and is threadedly connected with the pushing member (163), the locking screw (1634) is tightened to fix the pushing member (163) on the needle mouth rod (15), and the pushing member (163) can move on the needle mouth rod (15) when the locking screw (1634) is loosened.

8. The towel chain embroidery machine head according to claim 2, characterized in that: The first buffer elastic member (162) is a first buffer spring.

9. The towel chain embroidery machine head according to claim 2, characterized in that: The needle nozzle transmission mechanism comprises a crank (21) and a connecting rod (23); the crank (21) is rotatably mounted in the machine body (11); one end of the crank (21) is provided with a roller (22); the other end is hingedly connected to one end of the connecting rod (23); the other end of the connecting rod (23) is hingedly connected to the sliding connection member (161); a cam is provided on the main shaft (12), and the cam cooperates with the roller (22).

10. The towel chain embroidery machine head according to claim 1, characterized in that: The machine body (11) is also provided with a needle bar (19) which can slide up and down, the needle bar (19) is provided with an embroidery needle (20), and the needle mouth (18) is provided with a positioning hole for the embroidery needle (20) to pass through.

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