A pushing device and a button sewing machine

Abstract

This patent belongs to the field of button sewing machines, and particularly refers to a pushing device and a button sewing machine, including: a linear driving member; a guiding rod rotatably connected to the linear driving member for driving an external component; a first guiding block is provided on the guiding rod; and a track plate is arranged on one side of the linear driving member; a guiding track is formed on the track plate; the first guiding block is arranged in the guiding track; the guiding track includes a first straight section parallel to the linear driving member and a first swinging section connected to the end of the first straight section and offset to one side; when the linear driving member moves, the linear driving member drives the first guiding block to move in the guiding track, so as to drive the guiding rod to move back and forth parallel and then swing up and down. This patent only uses one driving source, that is, the linear driving member, to realize the movement of the external component in two directions under the guidance of the guiding track on the track plate, thereby greatly reducing the number of driving sources, simplifying the structure and greatly reducing the cost.

Description

Technical Field

[0001] This patent belongs to the technical field of button sewing machines, and particularly refers to a pushing device and a button sewing machine. Background Art

[0002] Chinese Utility Model Patent No. 201920750371.X discloses a button sewing machine that realizes automatic punching and button fastening of fabric. The first transfer station in this patent is provided with an X-direction translation cylinder for driving it to move in the X direction, and a jacking cylinder located below the first transfer station. Thus, through the mutual cooperation between the X-direction translation cylinder and the jacking cylinder, the first transfer station is positioned below the punch for operation.

[0003] The following defects exist in this utility model:

[0004] 1. If two sets of driving sources are used for driving, these two sets of driving sources need to be accurately coordinated; if a system failure causes their coordination to fail, it will affect the operation of the equipment, and in severe cases, it may cause damage to the equipment.

[0005] 2. Multiple sets of driving sources will increase the overall volume of the equipment, affect the layout of components in the equipment, and the manufacturing difficulty of the equipment; at the same time, using multiple sets of driving sources will significantly increase the manufacturing cost of the equipment, affecting product sales. Summary of the Invention

[0006] The purpose of this patent is to provide a pushing device and a button sewing machine with stable operation and effectively reducing the driving source.

[0007] The purpose of this patent is achieved as follows:

[0008] A pushing device includes:

[0009] A linear driving member;

[0010] A guide rod rotatably connected to the linear driving member for driving an external member; a first guide block is provided on the guide rod; and

[0011] A track plate arranged on one side of the linear driving member; a guide track is opened on the track plate;

[0012] The first guide block is arranged in the guide track; the guide track includes a first straight section parallel to the linear driving member and a first swinging section connected to the end of the first straight section and offset to one side;

[0013] When the linear driving member moves, the linear driving member drives the first guide block to move in the guide track to drive the guide rod to move back and forth parallel and then swing up and down.

[0014] Further, the first straight section is perpendicularly arranged to the first swinging section;

[0015] Furthermore, it further includes a balancing component, which includes:

[0016] A balancing track, disposed on the track plate; the balancing track has a second straight section parallel to the linear driving member and a second swinging section connected to the end of the second straight section and offset toward one side;

[0017] A balancing rod, rotatably connected to the linear driving member, and a second guide block is provided on the balancing rod, and the second guide block is located in the balancing track and moves under the drive of the linear driving member;

[0018] The guiding track and the balancing track are respectively located on both sides of the running track of the linear driving member, and the offset direction of the second swinging section is opposite to the offset direction of the first swinging section;

[0019] When the linear driving member moves, the linear driving member drives the first guide block and the second guide block to move in the guiding track and the balancing track respectively, and enables the first guide block and the second guide block to reach the offset points of the guiding track and the balancing track simultaneously.

[0020] Furthermore, a first return spring is connected between the balancing rod and the guiding rod.

[0021] Furthermore, the first swinging section is perpendicularly arranged with respect to the first straight section, and the second swinging section intersects with the second straight section to form an obtuse angle.

[0022] Furthermore, it further includes a resetting component, which includes a pushing member disposed at the end of the first swinging section for pushing the first guide block located at the end of the first swinging section outward.

[0023] Furthermore, a bearing member is provided on the first guide block, and the bearing member is in rolling contact with the guiding track.

[0024] Furthermore, a third guide block is provided on the linear driving member, and a supporting track adapted to the third guide block is provided on the track plate; the third guide block is located in the supporting track; when the linear driving member moves, it drives the third guide block to move in the supporting track.

[0025] A button sewing machine includes the above-mentioned pushing device, and the guiding rod is connected with a button sewing base.

[0026] The prominent and beneficial technical effects of this patent compared with the prior art are:

[0027] 1. This patent only uses one driving source, that is, the linear driving member, to realize the movement of an external component in two directions under the guidance of the guiding track in the track plate, thereby greatly reducing the number of driving sources provided, simplifying the structure and greatly reducing the cost.

[0028] 2. This patent realizes the linear upward drive and linear downward drive of external components through the adoption of the balance component, with a simple overall structure and quick assembly. Moreover, there is only one drive source in the entire pushing device, so the probability of failure is low, and the overall system is relatively stable, which helps the long-term operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of a button sewing machine.

[0030] Figure 2 It is a schematic structural diagram of the pushing device in the button sewing machine.

[0031] Figure 3 It is a front view schematic diagram of the pushing device in Embodiment 2.

[0032] Figure 4 It is a back view schematic diagram of the pushing device in Embodiment 2.

[0033] Figure 5 It is a schematic diagram of the pushing device in the initial state of Embodiment 2.

[0034] Figure 6 It is a schematic diagram of the pushing device during operation in Embodiment 2.

[0035] Figure 7 It is a schematic diagram of the pushing device in Embodiment 2 after conveying the workpiece.

[0036] Figure 8 It is a back view schematic diagram of the pushing device in Embodiment 3.

[0037] Figure 9 It is a schematic structural diagram of the pushing device in Embodiment 4.

[0038] The meanings represented by the reference numerals in the figures:

[0039] 1. Linear drive member; 11. Third guide block; 2. Guide rod; 21. First guide block; 3. Button sewing base; 4. Track plate; 41. Guide track; 411. First straight section; 412. First swing section; 413. Pushing member; 42. Balance track; 421. Second straight section; 422. Second swing section; 43. Support track; 5. Balance rod; 51. Second guide block; 52. First return spring; 6. Vibration disk; 7. Machine frame; 8. Punch; 9. Feeding device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The present patent will be further described below in conjunction with specific embodiments:

[0041] Embodiment 1:

[0042] A pushing device for driving an external component to move forward and upward, comprising:

[0043] Linear drive member 1;

[0044] Guide rod 2, rotatably connected to the linear drive member 1 for driving an external member; a first guide block 21 is provided on the guide rod 2; and

[0045] Track plate 4, disposed on one side of the linear drive member 1; a guide track 41 is defined in the track plate 4;

[0046] The first guide block 21 is disposed in the guide track 41; when the linear drive member 1 moves, it drives the first guide block 21 to move in the guide track 41, so that the guide rod 2 moves horizontally back and forth or swings up and down.

[0047] In this embodiment, a button sewing machine is taken as an example. As Figure 1 shown, it includes a frame 7, and the main structures in the button sewing machine are fixed above the frame 7, and its main structures include the pushing device. Combining Figure 1 、 2 shown, a cylinder is fixed to the rear side of the frame 7, and the track plate 4 is provided on the front side; the linear drive member 1 is specifically a telescopic rod disposed on the cylinder, and the guide rod 2 is hinged to the end of the telescopic cylinder. When the cylinder works and extends, it drives the guide rod 2 to move; a first guide block 21 is provided beside the guide rod 2. The first guide block 21 is cylindrical, and a bearing member for enabling the first guide block 21 to move smoothly is provided on the first guide block 21.

[0048] In this patent, the track plate 4 is fixed to one side of the first guide block 21 through a bracket. Specifically, it is a square panel, and the guide track 41 is integrally formed on the panel. The guide track 41 is disposed at the upper left corner of the track plate 4 according to the positional relationship between the linear drive member 1 and the guide rod 2; the width of the guide track 41 is the same as the diameter of the first guide block 21. After the guide track 41 is connected to the first guide block 21, the first guide block 21 is limited within the guide track 41; when the guide rod 2 is driven by the linear drive member 1, the first guide block 21 moves back and forth along the guide track 41.

[0049] The front end of the first guide block 21 is connected to a button sewing base 3, that is, the external member; the button sewing base 3 is used for placing buttons. A vibrating disk 6 for providing buttons is provided on one side of the button sewing base 3. A punch 8 for processing buttons is provided above and in front of the button sewing base 3, and a feeding device 9 for moving buttons is provided above and behind the button sewing base 3; the pushing device in this patent is used to first receive the buttons sent out by the feeding device 9 by the button sewing base 3 at a position prior to the origin, and then send it below the punch for button stamping. Due to the height difference, the pushing device needs to first transport the button sewing base 3 along the X-axis, and then transport the button sewing base 3 along the Z-axis to complete a Z-shaped movement.

[0050] To adapt to the driving structure of the button sewing base 3, a first straight section 411 parallel to the linear driving member 1 and a first swinging section 412 connected to the end of the first straight section 411 and offset to one side are provided on the guiding track 41 in this patent. In the initial position state, the linear driving member 1 is not actuated, and the first guide block 21 is located at one end of the first straight section 411; when the linear driving member 1 works, the linear driving member 1 extends to drive the first guide block 21 to move in the first straight section 411. The first guide block 21 maintains a linear motion under the limitation of the first straight section 411, thereby driving the button sewing base 3 to move linearly and realizing its movement in the X-axis; when the first guide block 21 reaches the offset point of the first straight section 411, the first guide block 21 will abut against the wall surface at the offset point. The wall surface will limit the movement of the first guide block 21 and guide the first guide block 21 to move in the offset direction of the first swinging section 412, so that the first guide block 21 enters the first swinging section 412. Since the first swinging section 412 is offset, when the first guide block 21 moves in the first swinging section 412, it will cause the guiding rod 2 to swing to one side around its rotational connection point with the linear driving member 1, thereby realizing the movement of the button sewing base 3 in the Z-axis direction; generally, the running track of the button sewing base 3 is consistent with the shape of the guiding track 41. When the first swinging section 412 is inclined, the button will rise obliquely under the drive of the first guide block 21. When the first swinging section 412 is perpendicular to the first straight section 411, the button will rise linearly under the drive of the first guide block 21.

[0051] This patent realizes the movement of an external component in two directions only through one driving source, that is, the linear driving member 1, under the guidance of the guiding track 41 in the track plate 4, thereby greatly reducing the number of driving sources provided, simplifying the structure and greatly reducing the cost.

[0052] Embodiment 2:

[0053] During the actual working process, the offset degree of the first swinging section 412 will affect the movement of the first guide block 21 in the guiding track 41; when the first guide block 21 moves to the offset point of the guiding track 41, the first guide block 21 abuts against one side wall surface at the offset point. If the driving speed of the linear driving member 1 is too fast, it will cause the first guide block 21 to tightly abut against the wall surface before it rotates, and be stuck under the simultaneous action of the wall surface and the linear driving member 1, making it difficult for the first guide block 21 to swing; if the first guide block 21 fails to swing in time, it will cause damage to the linear driving member 1 or the guiding rod 2, thereby making the entire device unable to work.

[0054] If the deviation degree of the first swing section 412 is small, the first guide block 21 can be smoothly moved on the guiding track 41 through the bearing member on the first guide block 21 to guide the first guide block 21 into the first swing section 412 to prevent jamming; in the button sewing machine, it is required that the button sewing machine perform a linear motion in the Y-axis direction after completing the motion in the X-axis direction. Therefore, the first swing section 412 is arranged perpendicular to the first straight section 411; at this time, it is difficult to guide the first guide block 21 only by the bearing member. The linear driving member 1 can be decelerated when the first guide block 21 needs to swing to give the first guide block 21 a certain swing time. However, if this method is adopted, even if the first guide block 21 finally enters the first swing section 412, the slow operation of the linear driving member 1 will affect the working efficiency of the equipment and thus reduce the production capacity. On the contrary, during the return process of the first guide block 21, it will be stuck because the first guide block 21 abuts against the wall surface of the first swing section 412, thus affecting its reset.

[0055] To solve the above problems and optimize the straight up and down movement of the button sewing base 3, a balance assembly is further provided in this embodiment, which includes:

[0056] A balance track 42, arranged on the track plate 4;

[0057] A balance rod 5, rotatably connected to the linear driving member 1. A second guide block 51 is arranged on the balance rod 5. The second guide block 51 is located in the balance track 42 and moves under the drive of the linear driving member 1;

[0058] As Figures 3 - 5 shown, the balance rod 5 is rotatably connected to one side of the linear driving member 1 facing the track plate 4, and the guide rod 2 is rotatably connected to the other side of the linear driving member 1 facing the track plate 4. The balance rod 5 and the guide rod 2 are respectively located on the upper and lower sides of the linear driving member 1; correspondingly, the guide track 41 and the balance track 42 are respectively located on both sides of the running track of the linear driving member 1, and the first guide block 21 is located in the guide track 41, and the second guide block 51 is located in the balance track 42. The size of the balance track 42 is basically the same as the shape of the guide track 41. It has a second straight section 421 parallel to the linear driving member 1 and a second swing section 422 connected to the end of the second straight section 421 and offset to one side. And the deviation degree of the second swing section 422 is smaller than that of the first swing section 412. The second swing section 422 is connected to the second straight section 421 to form an obtuse angle; among them, the obtuse angle is between 130 degrees and 170 degrees, and preferably 150 degrees. At the same time, the offset point on the balance track 42 is opposite to the offset point in the guide track 41, that is, on the same vertical straight line, and the lengths and shapes of the guide rod 2 and the balance rod 5, the first straight section 411 and the second straight section 421 are basically the same.

[0059] During operation, the linear drive member 1 operates forward, simultaneously driving the guide rod 2 and the balance rod 5 to move, causing the first guide block 21 and the second guide block 51 to move in the first straight section 411 and the second straight section 421, and enter the offset points of the guide track 41 and the balance track 42. As Figure 6 shown, at this time, the first guide block 21 abuts against the inner wall of the guide track 41, and the inner wall of the guide track 41 gives the linear drive member 1 a downward reaction force. The second guide block 51 abuts against the inner wall of the balance track 42, and the inside of the balance track 42 gives the linear drive member 1 an upward reaction force. The two reaction forces act on the linear drive member 1 simultaneously. The reaction force received by the first guide block 21 is relieved by the reaction force of the second guide block 51, so that the linear drive member 1 is in a relatively balanced state and can operate stably.

[0060] It should be noted that since the offset degree of the second swing section 422 is smaller than that of the first swing section 412, the second guide block 51 can quickly enter the second swing section 422 under the normal drive of the linear drive member 1. When the first guide block 21 reaches the offset point of the first swing section 412, combined with Figure 6 , 7 shown, due to the smaller offset degree of the second swing section 422, the second guide block 51 has a forward movement tendency. It can easily enter the second swing section 422 under the drive of the linear drive member 1. Also, since the balance rod 5 is connected to the linear drive member 1, the forward movement tendency of the second guide block 51 gives the linear drive member 1 a downward movement tendency. Also, since the guide rod 2 is connected to the front end of the linear drive member 1, the front end of the linear drive member 1 is one end of the guide rod 2. One end of the guide rod 2 has a downward movement tendency, and the other end provided with the first guide block 21 has an upward movement tendency. When the linear drive member 1 continues to move forward at this time, the guide rod 2 quickly swings upward under the action of this upward movement tendency, so that the first guide block 21 quickly enters the first swing section 412, realizing the linear upward movement of the buttoning base 3.

[0061] Conversely, when the linear drive member 1 retracts, the backward movement tendency of the second guide block 51 gives the linear drive member 1 an upward movement tendency. Similarly, after being transmitted to the guide rod 2, it will give the guide rod 2 a downward movement tendency, causing the guide rod 2 to quickly swing downward and disengage from the first swing section 412.

[0062] In summary, by using the balance component to apply a reverse force to the guiding rod 2, it is possible to quickly swing and rotate without jamming at the offset point of the guiding track 41, thereby realizing the linear upward drive and linear downward drive of the external component. The overall structure is simple and the assembly is fast. Moreover, there is only one driving source in the entire pushing device, so the probability of failure is low and the overall system is relatively stable, which helps the equipment to work for a long time.

[0063] Further, in order to ensure the smooth movement of the linear driving member 1, a third guide block 11 is provided on the linear driving member 1, and a supporting track 43 adapted to the third guide block 11 is provided on the track plate 4; as Figure 3 shown, a linear track is provided in the middle of one side of the guiding track 41 and the balance track 42 of the track plate 4, and the third guide block 11 is located in the linear track and is elliptical; the third guide block 11 is used to position the linear movement of the linear driving member 1, so that the linear movement of the linear driving member 1 is more stable.

[0064] Embodiment 3:

[0065] As Figure 8 shown, most of the structures in this embodiment are the same as those in Embodiment 2, and the difference lies in that: a first return spring 52 is connected between the balance rod 5 and the guiding rod 2; the first return spring 52 is used to pull the balance rod 5 and the guiding rod 2 inward after the balance rod 5 and the guiding rod 2 are opened outward, assisting the linear driving member 1 to reset the states of the balance rod 5 and the guiding rod 2, so that the movement of the guiding rod 2 is smoother.

[0066] Embodiment 4:

[0067] As Figure 9 shown, most of the structures in this embodiment are the same as those in Embodiment 2, and the difference lies in that: by providing a pushing member 413 in the guiding track 41, the first guide block 21 located at the end of the first swing section 412 is pushed outward to assist the retraction of the first guide block 21; the pushing member 413 can be a cylinder or a second return spring fixed on the first swing section 412; when the first guide block 21 is driven forward, the first guide block 21 enters the first swing section 412 and compresses the second return spring. When the first guide block 21 retracts, the linear driving member 1 does not apply force forward, and the first guide block 21 is pushed outward to reset by the driving force of the second return spring.

[0068] The above embodiments are only the preferred embodiments of this patent, and do not limit the protection scope of this patent accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this patent should be covered within the protection scope of this patent.

Claims

1. A pushing device, characterized in that , including: A linear drive (1), which is a telescopic rod arranged on a cylinder; A guide rod (2), rotatably connected to the linear drive (1) and used to drive an external component; a first guide block (21) is provided on the guide rod (2); and An orbital plate (4), arranged on one side of the linear drive (1); a guide track (41) is formed on the orbital plate (4); The first guide block (21) is arranged in the guide track (41); the guide track (41) includes a first straight section (411) parallel to the linear drive (1) and a first swing section (412) connected to the end of the first straight section (411) and offset to one side; When the linear drive (1) moves, the linear drive (1) drives the first guide block (21) to move in the guide track (41), so as to drive the guide rod (2) to move back and forth parallel and then swing up and down; It further includes a balance assembly, which includes: A balance track (42), arranged on the orbital plate (4); The balance track (42) has a second straight section (421) parallel to the linear drive (1) and a second swing section (422) connected to the end of the second straight section (421) and offset to one side; A balance rod (5), rotatably connected to the linear drive (1), a second guide block (51) is provided on the balance rod (5), and the second guide block (51) is located in the balance track (42) and moves under the drive of the linear drive (1); The guide track (41) and the balance track (42) are respectively located on both sides of the running track of the linear drive (1), and the offset direction of the second swing section (422) is opposite to the offset direction of the first swing section (412); When the linear drive (1) moves, the linear drive (1) drives the first guide block (21) and the second guide block (51) to move in the guide track (41) and the balance track (42) respectively, and makes the first guide block (21) and the second guide block (51) reach the offset points of the guide track (41) and the balance track (42) simultaneously; It further includes a reset assembly, which includes a pusher (413) arranged at the end of the first swing section (412) and used to push the first guide block (21) located at the end of the first swing section (412) outwards.

2. The pusher device according to claim 1, wherein: The first straight section (411) is perpendicularly arranged to the first swing section (412).

3. The pusher device according to claim 1, characterized in that: A first return spring (52) is connected between the balance rod (5) and the guide rod (2).

4. A pushing device according to claim 1, wherein: An obtuse angle is formed by the intersection of the second swing section (422) and the second straight section (421).

5. A pushing device according to any one of claims 1-4, characterized in that: A bearing member is provided on the first guide block (21), and the bearing member is in rolling contact with the guide track (41).

6. A pushing device according to any one of claims 1-4, characterized in that: A third guide block (11) is provided on the linear drive (1), and a support track (43) adapted to the third guide block (11) is provided on the orbital plate (4); the third guide block (11) is located in the support track (43); when the linear drive (1) moves, it drives the third guide block (11) to move in the support track (43).

7. A button sewing machine, comprising a frame and a pushing device as described in any one of claims 1-6 provided in the frame, characterized in that: The guide rod (2) is connected with a button nailing base (3).

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