Pushing structure of button sewing machine

Abstract

The utility model provides a pushing structure of a button sewing machine, and belongs to the technical field of button sewing machines. The problem that a pushing structure of an existing button sewing machine occupies a large installation space is solved. The button sewing machine comprises a machine base and a machine shell fixedly connected to the top of the machine base, a mounting cavity is formed between the machine base and the machine shell, and a pushing structure is located in the mounting cavity and comprises a driving source fixedly connected to the machine base, an eccentric wheel fixedly connected to an output shaft of the driving source, a connecting rod and a punching rod. The bottom end of the connecting rod is hinged to the top end of the punching rod, a penetrating guide hole is formed in the machine base, and the bottom end of the punching rod is arranged in the guide hole in a penetrating mode and can downwards penetrate through the guide hole. The pushing structure of the button sewing machine has the advantage of being small in occupied installation space.

Description

TECHNICAL FIELD

[0001] The utility model belongs to button sewing machine technical field relates to a button sewing machine's push structure. BACKGROUND

[0002] Button sewing machine is a kind of mechanical equipment specially used to fix button on clothes. It is widely used in garment manufacturing industry, can improve production efficiency, reduce the time and cost of manual operation.

[0003] The existing button sewing machine, for example, Chinese patent literature discloses a button sewing machine [patent number: 201310034758.2;Application publication number: CN103111530B], it includes machine body and fixed on the workbench of machine body, workbench includes the first base body and second base body with the support in the middle, the first base body and the second base body of workbench are equipped with the same number of table top respectively, the shape of the table top on the first base body and the table top on the second base body is mutually orthogonal projection correspondence, each table top on the first base body is equipped with upper punch assembly, each table top on the second base body is equipped with lower punch assembly, upper punch assembly includes upper punch shaft, upper die fixed shaft, fixed sleeve, upper die fixed shaft is installed in upper punch shaft, upper punch shaft is installed in fixed sleeve.

[0004] The button sewing machine of this structure, motor is fixed in the bottom of tail end of machine body, small pulley is arranged in the bottom of tail end of machine body, large pulley is arranged in the top of tail end of machine body, crankshaft structure is arranged in the top of machine body, large pulley and small pulley are connected by belt, crankshaft structure one end is connected punch shaft by push plate, the other end connects large pulley. That is, the button sewing machine of this structure, the parts between motor and push plate are numerous, the distance is very far, occupies large space, brings certain inconvenience to the arrangement of other parts in button sewing machine, and large pulley, small pulley and belt are located in the machine body, there is the problem of external interference. SUMMARY

[0005] The utility model discloses a kind of push structures of button sewing machine, the technical problem solved is how to make push structure occupy small installation space.

[0006] The utility model discloses a push structure of button sewing machine, button sewing machine includes the base and the fixed connection in the top of base's casing, the base with the casing between form installation cavity, its characterized in that, the push structure is located in the installation cavity, the push structure includes the drive source of fixed connection in the base, the eccentric wheel of fixed connection in drive source output shaft, connecting rod and punch bar, the top of connecting rod with eccentric wheel is hinged, the bottom of connecting rod with the top of punch bar is hinged, the guide hole with the through of the base, the bottom of punch bar is arranged in the guide hole and the bottom of punch bar can pass down the guide hole.

[0007] The drive source can be the combination of driving motor and speed reducer, the drive source can drive the eccentric wheel to rotate, the eccentric wheel rotates and drives the punch bar to move down along the guide hole through the connecting rod, the punch bar contacts and pushes the upper punch shaft to move down, realizes the button sewing of button sewing machine, the drive source drives the eccentric wheel to continue rotating, drives the punch bar to move up through the connecting rod, and the upper punch shaft resets, completes a button sewing, and the whole process is repeated to complete multiple button sewing. The guide hole plays a guiding role, ensures that the punch bar moves along the set direction, and the eccentric wheel plays an eccentric role, so that the punch bar moves up and down has enough stroke. The whole push structure is located in the installation cavity, does not occupy external installation space, and the positions of various parts are compact, so that the push structure occupies small installation space.

[0008] In the push structure of button sewing machine, the eccentric wheel has a first eccentric hole and a second eccentric hole, and the center of the eccentric wheel is located on the line connecting the centers of the first eccentric hole and the second eccentric hole. This structure makes the centers of the first eccentric hole and the second eccentric hole not the center of the eccentric wheel, and makes the punch bar have enough stroke under the condition that the diameter of the eccentric wheel is relatively small.

[0009] In the push structure of button sewing machine, the distance between the center of the first eccentric hole and the center of the second eccentric hole is 22mm. This structure makes the stroke of the punch bar moving up and down 44mm.

[0010] In the push structure of button sewing machine, the diameter of the first eccentric hole is 1.8-2.2 times the diameter of the second eccentric hole. This structure makes the drive source more stable in driving the eccentric wheel to rotate, and makes the diameter of the eccentric wheel relatively small.

[0011] In the push structure of the button sewing machine, the output shaft of the driving source is arranged in the first eccentric hole, a connecting shaft is arranged in the second eccentric hole, one end of the connecting shaft is arranged outside the eccentric wheel, the top end of the connecting rod is provided with a connecting hole, and one end of the connecting shaft is arranged in the connecting hole to connect the top end of the connecting rod with the eccentric wheel.

[0012] In the push structure of the button sewing machine, the bottom end of the connecting rod is provided with a U-shaped groove, the top of the impact rod is provided with a flat connecting part, the connecting part is arranged in the U-shaped groove, and a pin shaft is arranged through the U-shaped groove and the connecting part to connect the bottom end of the connecting rod with the top end of the impact rod.

[0013] In the push structure of the button sewing machine, the side of the connecting rod, which is close to the eccentric wheel, is provided with a recessed avoiding space, and the eccentric wheel is arranged in the avoiding space.

[0014] In the push structure of the button sewing machine, the circumferential edge of the first eccentric hole, which is close to the driving source, is provided with an outwardly protruding annular abutting part.

[0015] In the push structure of the button sewing machine, the top end of the machine base is provided with an upwardly protruding protrusion, and the driving source is arranged on the protrusion.

[0016] In the push structure of the button sewing machine, the machine base further comprises a rotatable rotating frame arranged in the machine base, the rotating frame comprises a plurality of upper mounting arms arranged at the top and a plurality of lower mounting arms arranged at the bottom, an elastic reset upper die is arranged in each upper mounting arm, the impact rod can push the upper die to move downward, and a lower die is arranged in each lower mounting arm, and the upper die and the lower die are arranged in a one-to-one correspondence.

[0017] Compared with the prior art, the push structure of the button sewing machine has the following advantages:

[0018] 1、 The whole pushing structure is located in the installation cavity, does not occupy the external installation space, the driving source is located at the first end of the base, the positions of various components are compact, so that the pushing structure occupies small installation space.

[0019] 2、 The center of the eccentric wheel is located on the line connecting the centers of the first eccentric hole and the second eccentric hole, so that the punch rod has sufficient stroke under the condition that the diameter of the eccentric wheel is relatively small. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall structure of the button sewing machine.

[0021] Figure 2 is the overall structure of the pushing structure.

[0022] Figure 3 is the overall structure of the eccentric wheel.

[0023] In the figure, 1 is the base; 1a is the protrusion; 2 is the machine shell; 3 is the installation cavity; 4 is the driving source; 5 is the eccentric wheel; 51 is the first eccentric hole; 52 is the second eccentric hole; 53 is the abutting part; 6 is the connecting rod; 61 is the connecting hole; 62 is the U-shaped groove; 63 is the avoiding space; 7 is the punch rod; 71 is the connecting part; 8 is the guide hole; 9 is the connecting shaft; 10 is the pin shaft; 11 is the rotating frame; 111 is the upper mounting arm; 112 is the lower mounting arm; 12 is the upper die; 13 is the lower die. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0025] As shown in Figure 1 , Figure 2 , the button sewing machine comprises a base 1, a machine shell 2, a pushing structure, a rotating frame 11, an upper die 12 and a lower die 13. The pushing structure comprises a driving source 4, an eccentric wheel 5, a connecting rod 6 and a punch rod 7.

[0026] The machine shell 2 is fixedly connected to the top of the base 1, and the installation cavity 3 is formed between the base 1 and the machine shell 2, the pushing structure is located in the installation cavity 3, the top of the base 1 has a protrusion 1a protruding upward, the driving source 4 is fixedly connected to the protrusion 1a, and the driving source 4 is a combination of a driving motor and a speed reducer.

[0027] As shown in Figure 3As shown, the eccentric wheel 5 has a first eccentric hole 51 and a second eccentric hole 52, the center of the eccentric wheel 5 is located on the line connecting the center of the first eccentric hole 51 and the center of the second eccentric hole 52, and the distance between the center of the first eccentric hole 51 and the center of the second eccentric hole 52 is 22 mm. In this embodiment, the hole diameter of the first eccentric hole 51 is twice the hole diameter of the second eccentric hole 52. In actual production, the hole diameter of the first eccentric hole 51 can be 1.8 times or 2.2 times the hole diameter of the second eccentric hole 52.

[0028] The output shaft of the driving source 4 is rotatably arranged in the first eccentric hole 51, and the connecting shaft 9 is rotatably arranged in the second eccentric hole 52. One end of the connecting shaft 9 protrudes out of the eccentric wheel 5. The top end of the connecting rod 6 has a connecting hole 61, and one end of the connecting shaft 9 is rotatably arranged in the connecting hole 61, so that the top end of the connecting rod 6 is hingedly connected to the eccentric wheel 5. The bottom end of the connecting rod 6 has a U-shaped groove 62, and the top of the punch rod 7 has a flat connecting part 71. The connecting part 71 is rotatably arranged in the U-shaped groove 62, and the bottom end of the punch rod 7 is rotatably arranged in the guide hole 8. The punch rod 7 is arranged in the vertical direction, and the bottom end of the punch rod 7 can pass through the guide hole 8 downward.

[0029] The side of the connecting rod 6 facing the eccentric wheel 5 has a recessed space 63, and the eccentric wheel 5 is partially arranged in the recessed space 63. The circumferential edge of the first eccentric hole 51 near one end of the driving source 4 has an outwardly protruding annular abutting part 53.

[0030] The rotating frame 11 is rotatably arranged in the machine base 1. In this embodiment, the rotating frame 11 includes three upper mounting arms 111 arranged at the top and three lower mounting arms 112 arranged at the bottom. An elastically resettable upper die 12 is rotatably arranged in each upper mounting arm 111, and the punch rod 7 can push the upper die 12 to move downward. A lower die 13 is fixedly connected to each lower mounting arm 112, and the upper die 12 and the lower die 13 are arranged one by one. In actual production, the number of upper mounting arms 111 and lower mounting arms 112 can be two or four.

[0031] In operation, the driving source 4 drives the eccentric wheel 5 to rotate, and the eccentric wheel 5 rotates to drive the punch rod 7 to move downward along the guide hole 8 and in the vertical direction through the connecting rod 6. The punch rod 7 contacts and pushes the upper die 12 to move downward, and the upper die 12 and the lower die 13 cooperate to realize the button sewing of the button sewing machine. The driving source 4 drives the eccentric wheel 5 to continue to rotate, and the punch rod 7 is driven to move upward through the connecting rod 6, and the upper die 12 is reset. One button sewing is completed, and the process is repeated to complete multiple button sewing.

[0032] The specific embodiments described herein are merely illustrative of the present application. Various modifications or changes can be made to the specific embodiments described herein by those skilled in the art of the present application without departing from the spirit of the present application or the scope of the appended claims.

[0033] Although the terms of base 1, housing 2, installation cavity 3, driving source 4, eccentric wheel 5, first eccentric hole 51, second eccentric hole 52, abutting part 53, connecting rod 6, connecting hole 61, U-shaped slot 62, avoiding space 63, punch 7, connecting part 71, guide hole 8, connecting shaft 9, pin shaft 10, rotating frame 11, upper installation arm 111, lower installation arm 112, upper die 12, lower die 13 and the like are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any kind of additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A pushing structure of a button sewing machine, the button sewing machine comprising a base (1) and a machine housing (2) fixed on the top of the base (1), a mounting cavity (3) being formed between the base (1) and the machine housing (2), characterized in that, The pushing structure is located in the installation cavity (3), and comprises a driving source (4) fixed to the machine base (1), an eccentric wheel (5) fixed to an output shaft of the driving source (4), a connecting rod (6) and a punch rod (7), a top end of the connecting rod (6) is hingedly connected to the eccentric wheel (5), a bottom end of the connecting rod (6) is hingedly connected to a top end of the punch rod (7), the machine base (1) has a guide hole (8) penetrating therethrough, and the bottom end of the punch rod (7) is arranged in the guide hole (8) and can pass through the guide hole (8) downward.

2. The pushing structure of a button sewing machine according to claim 1, wherein The eccentric wheel (5) has a first eccentric hole (51) and a second eccentric hole (52), and a center of the eccentric wheel (5) is located on a line connecting a center of the first eccentric hole (51) and a center of the second eccentric hole (52).

3. The pushing structure of a button sewing machine according to claim 2, wherein A distance between the center of the first eccentric hole (51) and the center of the second eccentric hole (52) is 22 mm.

4. The pushing structure of a button sewing machine according to claim 2, wherein A hole diameter of the first eccentric hole (51) is 1.8-2.2 times of a hole diameter of the second eccentric hole (52).

5. The pushing structure of a button sewing machine according to claim 2 or 3 or 4, wherein, An output shaft of the driving source (4) is fixedly arranged in the first eccentric hole (51), a connecting shaft (9) is fixedly arranged in the second eccentric hole (52), one end of the connecting shaft (9) protrudes outward from the eccentric wheel (5), a top end of the connecting rod (6) has a connecting hole (61), and one end of the connecting shaft (9) is arranged in the connecting hole (61) so that the top end of the connecting rod (6) is hingedly connected to the eccentric wheel (5).

6. The pushing structure of a button sewing machine according to claim 1 or 2 or 3 or 4, wherein, A bottom end of the connecting rod (6) has a U-shaped groove (62), a top portion of the punch rod (7) has a flat connecting portion (71), the connecting portion (71) is embedded in the U-shaped groove (62), and a pin shaft (10) passes through the U-shaped groove (62) and the connecting portion (71) so that the bottom end of the connecting rod (6) is hingedly connected to the top end of the punch rod (7).

7. The pushing structure of a button sewing machine according to claim 1 or 2 or 3 or 4, wherein, One side of the connecting rod (6) facing the eccentric wheel (5) has a recessed avoiding space (63), and the eccentric wheel (5) is partially arranged in the avoiding space (63).

8. The pushing structure of a button sewing machine according to claim 2 or 3 or 4, wherein, A circumferential edge of the first eccentric hole (51) near one end of the driving source (4) has an outwardly protruding annular abutting portion (53).

9. The pushing structure of a button sewing machine according to claim 1 or 2 or 3 or 4, wherein, A top end of the machine base (1) has an upwardly protruding protrusion (1a), and the driving source (4) is fixed to the protrusion (1a).

10. The pushing structure of a button sewing machine according to claim 1 or 2 or 3 or 4, wherein, The button sewing machine further comprises a rotating frame (11) rotatably arranged in the machine base (1), the rotating frame (11) comprises a plurality of upper installation arms (111) arranged at the top and a plurality of lower installation arms (112) arranged at the bottom, an upper die (12) capable of being elastically reset is arranged in each of the upper installation arms (111), the punch rod (7) can push the upper die (12) to move downward, and a lower die (13) is fixed to each of the lower installation arms (112), and the upper die (12) and the lower die (13) are arranged in one-to-one correspondence.

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