A push rod assembly of a button sewing machine

Abstract

The present technical scheme belongs to the technical field of button sewing machines, and specifically relates to a push rod assembly of a button sewing machine, comprising: a lower mold push rod, whose upper end is concave with an installation cavity, and a threaded cavity is opened at the center position of the bottom of the installation cavity; an adjusting seat, whose lower end is provided with a threaded column, and whose upper end is provided with a fixing cavity; and a lower mold, whose lower end portion is arranged in the fixing cavity; wherein, the lower end of the adjusting seat is inserted in the installation cavity, and the threaded column is threadedly connected in the threaded cavity, and the position of the threaded column in the threaded cavity is adjusted by rotating the adjusting seat disposed outside the installation cavity, thereby realizing the adjustment of the fixed position of the lower mold; at least one through hole one is opened on the adjusting seat, and a fixing piece is movably arranged in the through hole one, and the fixing piece movably abuts against the side wall of the lower mold; at least one through hole two is opened on the lower mold push rod, and a locking piece is movably arranged in the through hole two, and the locking piece movably abuts against the side wall of the adjusting seat.

Description

Technical Field

[0001] The present technical solution relates to the technical field of button sewing machines, and in particular to a push rod assembly of a button sewing machine. Background Art

[0002] The button sewing machine is used to install buttons on fabrics. When the button sewing machine is working, it is usually necessary to punch holes in the fabric first, and then sew the buttons at the holes. The buttons include upper buttons and lower buttons. The upper buttons are adsorbed by the upper mold mechanism, and the lower buttons are located on the lower mold mechanism. When the upper mold mechanism moves to the top of the lower mold mechanism, the upper mold mechanism moves toward the lower mold mechanism, and cooperates with the lower mold mechanism to press the upper buttons and the lower buttons to complete the button sewing.

[0003] When sewing buttons of different types, since buttons of different types have different thicknesses, it is necessary to adjust the extension distance of the lower die mechanism of the button sewing machine so that the lower buckle is just located below the cloth to be close to the cloth. Chinese patent CN219537559U discloses a lower die mechanism of a riveting machine, and its connection structure is: the lower die top sleeve is arranged in the lower die fixed block, the lower buckle is placed on the upper end of the lower die top sleeve, and the lower die top sleeve is controlled to move up and down by the ejection device to realize the lifting and lowering of the lower buckle. This lower die mechanism cannot adjust the extension length of the lower die top sleeve, so it cannot process lower buckles of different types. Summary of the invention

[0004] The purpose of the technical solution is to provide a push rod assembly for a button sewing machine, by arranging an adjustment seat that cooperates with its thread in the installation cavity of the push rod of the lower mold, so that the fixed position of the lower mold can be directly adjusted by rotating the adjustment seat, thereby solving the problem that the original button sewing machine can only process buttons of one thickness.

[0005] The purpose of this technical solution is achieved in this way:

[0006] A push rod assembly of a button sewing machine includes: a lower mold push rod, whose upper end is recessed with an installation cavity, and a threaded cavity is opened at the center position of the bottom of the installation cavity; an adjustment seat, whose lower end is provided with a threaded column, and whose upper end is provided with a fixed cavity; and a lower mold, whose lower end portion is arranged in the fixed cavity; wherein the lower end of the adjustment seat is inserted into the installation cavity, and the threaded column is threadedly connected in the threaded cavity, and the position of the threaded column in the threaded cavity is adjusted by rotating the adjustment seat disposed outside the installation cavity, thereby realizing the adjustment of the fixed position of the lower mold.

[0007] Preferably, at least one through hole 1 is formed on the adjustment seat, and a fixing piece is movably arranged in the through hole 1. The fixing piece movably abuts against the side wall of the lower mold to fix the lower mold in the fixed cavity.

[0008] Preferably, at least one through hole 2 is formed on the lower mold push rod, and a locking member is movably provided in the through hole 2. The locking member movably abuts against the side wall of the adjustment seat to fix the adjustment seat in the installation cavity.

[0009] Preferably, the fixing piece is threadably matched with the through hole.

[0010] Preferably, the locking piece cooperates with two threads of the through hole.

[0011] Preferably, a first clamping part is protrudingly provided on the peripheral side of the upper end of the adjustment seat, and the first clamping part movably abuts against the lower end surface of the lower mold push rod; a second clamping part is protrudingly provided on the peripheral side of the upper end of the lower mold, and the second clamping part abuts against the lower end surface of the adjustment seat.

[0012] A push rod assembly of a button sewing machine includes: a lower mold push rod, whose upper end is concave with a mounting cavity; a connecting piece, whose upper end is provided with threads and whose lower end is movably abutted against the bottom of the mounting cavity; an adjusting seat, whose lower end is provided with a threaded hole and whose upper end is provided with a fixing cavity; a limiting piece, which is sleeved on the outside of the connecting piece and movably abutted against the lower end surface of the adjusting seat; and a lower mold, whose lower end portion is arranged in the fixing cavity; wherein the lower end of the adjusting seat and the connecting piece are threadedly connected and placed together in the mounting cavity, and the length of the adjusting seat and the connecting piece can be adjusted by rotating the adjusting seat, thereby realizing the adjustment of the fixed position of the lower mold.

[0013] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:

[0014] 1. The adjustment seat designed in the technical solution is movably arranged in the installation cavity opened at the upper end of the lower mold push rod through a thread, and the lower mold is fixedly arranged in the fixed cavity opened at the upper end of the adjustment seat. The fixed position of the lower mold can be changed by rotating the adjustment seat, so that the extension length of the lower mold can be adjusted to adapt to the buckle processing of different thicknesses. In addition, this push rod assembly has a simple structure and fewer parts, and the adjustment method is simple and fast. At the same time, the concentricity between the lower mold push rod, the adjustment seat and the lower mold can be ensured.

[0015] 2. The locking piece designed in this technical solution can fix the adjustment seat in the installation cavity, and the fixing piece can fix the lower mold in the fixing cavity. When the position of the adjustment seat and the lower mold needs to be adjusted, it is only necessary to loosen the locking piece and the fixing piece and then tighten them. This fixing method can ensure the stability of the lower mold during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the push rod assembly in Example 1.

[0017] Figure 2 This is a schematic diagram of the structure of the assembled push rod assembly in Example 1.

[0018] Figure 3 This is an exploded view of the push rod assembly in Example 1.

[0019] Figure 4This is a cross-sectional view of the push rod assembly in Example 1.

[0020] Figure 5 This is a schematic diagram of the structure of the ejector assembly after assembly in Example 2.

[0021] Figure 6 This is an exploded view of the push rod assembly in Example 2.

[0022] Figure 7 This is a cross-sectional view of the assembled push rod assembly in Example 2.

[0023] Figure numerals: 1. lower die push rod; 2. mounting cavity; 3. threaded cavity; 4. adjustment seat; 5. threaded column; 6. fixing cavity; 7. lower die; 8. connecting piece; 9. limiting piece; 10. through hole one; 11. fixing piece; 12. through hole two; 13. locking piece; 14. clamping part one; 15. clamping part two; 16. mounting seat; 17. mounting position; 18. bushing; 19. driving rod; 20. movable groove; 21. reset spring; 22. threaded hole. DETAILED DESCRIPTION

[0024] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0025] [Example 1]

[0026] like Figure 1-4 As shown, a push rod assembly of a button sewing machine is a part of the lower mold mechanism, and the lower mold mechanism has the function of bearing the lower button. The present application improves the structure of the push rod assembly, and the push rod assembly includes a lower mold push rod 1, an adjusting seat 4 and a lower mold 7. The lower end of the lower mold push rod 1 is recessed with an installation cavity 2, and a threaded cavity 3 is opened at the center position of the bottom of the installation cavity 2, so that the central axis of the installation cavity 2 and the threaded cavity 3 coincide, which can ensure that the adjusting seat 4 rotates therein; a threaded column 5 is provided at the lower end of the adjusting seat 4, and a part of the adjusting seat 4 is placed in the installation cavity 2, and the threaded column 5 is threadedly matched with the threaded cavity 3, and a fixed cavity 6 is opened at the center position of the upper end of the adjusting seat 4; the lower mold 7 is detachably arranged in the fixed cavity 6.

[0027] Specifically, the lower end of the adjusting seat 4 is inserted into the mounting cavity 2. When the adjusting seat 4 is installed on the lower mold push rod 1, it is only necessary to rotate the adjusting seat 4 so that the threaded column 5 cooperates with the threaded cavity 3 to complete the installation. After the installation is completed, the position of the threaded column 5 in the threaded cavity 3 is adjusted by rotating the adjusting seat 4 placed outside the mounting cavity 2, thereby realizing the adjustment of the fixed position of the lower mold 7. When processing thinner buttons, in order to make the buttons close to the bottom of the cloth, it is necessary to increase the length of the adjusting seat 4 extending out of the mounting cavity 2 to compensate for the thickness of the buttons, and vice versa. The lower mold 7 is fixedly arranged in the fixed cavity 6 opened at the upper end of the adjusting seat 4. The fixing method can be interference fit, thread fit or fix the two by a fixing member 11. The outer diameter of the upper end of the adjusting seat 4 is larger than the outer diameter of the lower end (threaded column 5). In this way, the adjusting seat 4 can have the maximum moving distance, and the inner diameter of the fixed cavity 6 can match the outer diameter of the lower mold 7. The extension length of the lower mold 7 can be quickly adjusted by the adjusting seat 4, which is simple to operate and convenient and fast.

[0028] Furthermore, a clamping portion 14 is protrudingly provided on the circumferential side of the upper end of the adjusting seat 4. When the adjusting seat 4 is rotated so that the clamping portion 14 abuts against the upper end surface of the lower mold push rod 1, the lower mold 7 is at its shortest extended length. A clamping portion 2 15 is protrudingly provided on the circumferential side of the upper end of the lower mold 7. The clamping portion 2 15 abuts against the upper end surface of the adjusting seat 4. Since the lower mold 7 is subjected to pressure from the upper mold mechanism each time a button is processed, the lower mold 7 is clamped on the adjusting seat 4 by the clamping portion 2 15, thereby ensuring the stability of the processed buttons.

[0029] like Figure 1-4 As shown, at least one through hole 10 is radially opened on the adjustment seat 4, and a fixing part 11 is movably arranged in the through hole 10. The fixing part 11 passes through the side wall of the adjustment seat 4 and movably abuts against the side wall of the lower mold 7. The fixing part 11 is threadedly matched with the through hole 10, and when the fixing part 11 abuts against the side wall of the lower mold 7, it can be ensured that the lower mold 7 will not rotate. In this embodiment, the number of through holes 10 and fixing parts 11 is set to three, which are evenly arranged on the adjustment seat 4, and the lower mold 7 can be better limited. When the fixing part 11 withdraws from the through hole 10 and leaves the side wall of the lower mold 7, the lower mold 7 can be removed from the fixed cavity 6. The setting of the fixing part 11 realizes the rapid installation and disassembly of the lower mold 7.

[0030] [Modifications]

[0031] An inserting hole for inserting the fixing member 11 is provided on the outer wall of the lower mold 7 . The fixing member 11 can pass through the adjustment seat 4 and be placed in the inserting hole, which can also realize the fixation of the lower mold 7 .

[0032] like Figure 2-7As shown, a lower mold mechanism of a button sewing machine includes a mounting seat 16, a push rod assembly, a driving assembly and a reset assembly. The mounting seat 16 is used to connect the button sewing machine, and a plurality of mounting positions 17 are opened inside the mounting seat 16 for placing the push rod assembly, the driving assembly and the reset assembly. The lower mold push rod 1 is movably placed in the mounting position 17 through a shaft sleeve 18, and can move up and down when driven by an external force. The adjustment seat 4 is arranged in the mounting cavity 2 opened at the lower end of the lower mold push rod 1, and the lower mold 7 is arranged in the fixed cavity 6 opened at the lower end of the adjustment seat 4, so the lower mold push rod 1 can drive the lower mold 7 to work after being driven by the driving assembly, and the reset assembly can help reset the lower mold push rod 1 after it is forced to rise.

[0033] Specifically, the driving assembly can drive the driving rod 19 radially inserted in the lower end of the lower mold push rod 1 to rise and fall, thereby driving the lower mold push rod 1 to rise and fall. At the same time, the two ends of the driving rod 19 are movably placed in the movable groove 20 of the mounting seat 16, and the reset spring 21 of the reset assembly is respectively arranged at the two ends of the driving rod 19. The two ends of any reset spring 21 are respectively connected to the driving rod 19 and the mounting seat 16. When the driving rod 19 rises, the reset spring 21 is stretched. Therefore, when the driving rod 19 descends, the lower mold push rod 1 is reset by its own gravity and the assistance of the reset spring 21.

[0034] [Example 2]

[0035] like Figure 5-7 As shown, the arrangement of this embodiment is generally the same as that of embodiment 1, and the only difference lies in the internal structure of the lower mold assembly. This embodiment newly adds a connecting piece 8, which is connected with the adjusting seat 4 to form a whole and is placed in the installation cavity 2. After the connecting piece 8 is threadedly connected with the adjusting seat 4, the common length of the connection between the two can be adjusted by rotating the adjusting seat 4. When the two are placed in the installation cavity 2 together, the bottom of the connecting piece 8 abuts against the bottom of the installation cavity 2, and it supports the lower mold 7 after being connected with the adjusting seat 4. Therefore, when it is necessary to adjust the common length of the connection between the two, it can be taken out of the installation cavity 2 and adjusted. A limiting piece 9 for limiting the adjusting seat 4 is provided on the outer sleeve of the connecting piece 8. The limiting piece 9 is also threadedly connected to the upper end of the connecting piece 8, and the limiting piece 9 can abut against the lower end surface of the adjusting seat 4. The limiting piece 9 can keep the adjusting seat 4 in the position placed on the connecting piece 8 to ensure the stability of the ejector assembly during operation.

[0036] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0037] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element through an intermediate element.

[0038] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0039] The above shows and describes the basic principle and main features of the technical solution and the advantages of the technical solution. The technicians in this industry should understand that the technical solution is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, the technical solution will have various changes and improvements, which fall within the scope of the technical solution to be protected. The scope of protection claimed by the technical solution is defined by the attached claims and their equivalents.

Claims

1. A push rod assembly of a button sewing machine, characterized in that: include: A lower mold ejector rod (1) has an installation cavity (2) recessed at its upper end, and a threaded cavity (3) is provided at the center of the bottom of the installation cavity (2); An adjustment seat (4) having a threaded column (5) at its lower end and a fixing cavity (6) at its upper end; and A lower mold (7), the lower end portion of which is arranged in the fixing cavity (6); The lower end of the adjustment seat (4) is inserted into the installation cavity (2), and the threaded column (5) is threadedly connected in the threaded cavity (3). The position of the threaded column (5) in the threaded cavity (3) is adjusted by rotating the adjustment seat (4) disposed outside the installation cavity (2), thereby realizing the adjustment of the fixed position of the lower mold (7).

2. The push rod assembly of a button sewing machine according to claim 1, characterized in that: The adjustment seat (4) is provided with at least one through hole (10), a fixing member (11) is movably arranged in the through hole (10), and the fixing member (11) movably abuts against the side wall of the lower mold (7) to fix the lower mold (7) in the fixing cavity (6).

3. The push rod assembly of a button sewing machine according to claim 2, characterized in that: At least one through hole (12) is provided on the lower die push rod (1), a locking member (13) is movably provided in the through hole (12), and the locking member (13) movably abuts against the side wall of the adjustment seat (4) to fix the adjustment seat (4) in the installation cavity (2).

4. The push rod assembly of a button sewing machine according to claim 3, characterized in that: The fixing member (11) is threadably matched with the through hole 1 (10).

5. The push rod assembly of a button sewing machine according to claim 4, characterized in that: The locking piece (13) is threadably matched with the second through hole (12).

6. A push rod assembly for a button sewing machine according to claim 4 or 5, characterized in that: A clamping portion (14) is protrudingly provided on the circumferential side of the upper end of the adjustment seat (4), and the clamping portion (14) is movably abutted against the lower end surface of the lower mold ejector rod (1); A second clamping portion (15) is protrudingly provided on the circumferential side of the upper end of the lower mold (7), and the second clamping portion (15) abuts against the lower end surface of the adjustment seat (4).

7. A push rod assembly of a button sewing machine, characterized in that: include: A lower mold ejector rod (1) has an upper end concavely provided with a mounting cavity (2); A connecting piece (8) having a thread at its upper end and a lower end movably abutting against the bottom of the installation cavity (2); The adjusting seat (4) has a threaded hole (22) at its lower end and a fixing cavity (6) at its upper end; a limiting member (9), which is sleeved outside the connecting member (8) and movably abuts against the lower end surface of the adjusting seat (4); and A lower mold (7), the lower end portion of which is arranged in the fixing cavity (6); The lower end of the adjustment seat (4) and the connecting piece (8) are threadedly connected and placed together in the installation cavity (2). The length of the adjustment seat (4) and the connecting piece (8) can be adjusted by rotating the adjustment seat (4), thereby achieving adjustment of the fixed position of the lower mold (7).

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