Double-needle sewing machine capable of synchronously controlling skipping stitch

Abstract

The utility model discloses a double-needle sewing machine capable of synchronously controlling skipping stitch, which comprises a switching rod, a needle rod separator and a machine needle structure, a left pin head and a right pin head are arranged on the switching rod, the machine needle structure comprises a first needle rod and a second needle rod, a first separating rod and a first separating pin are arranged on the first needle rod, and a second separating rod and a second separating pin are arranged on the second needle rod. A second separating rod and a second separating pin are arranged on the second needle rod, the first separating rod and the second separating rod are connected through a synchronous structure, and a reset pin is arranged on the needle rod separator. The double-needle skipping stitch mechanism has the advantages that double-needle skipping stitch and double-needle sewing procedures of the double-needle sewing trouser waist machine can be achieved, the double-needle skipping stitch mechanism is not affected by machining precision, and the double-needle skipping stitch mechanism is suitable for production and manufacturing.

Description

TECHNICAL FIELD

[0001] The utility model relates to double needle sewing machine field, especially a double needle sewing machine of synchronous control needle skipping. BACKGROUND

[0002] When the double needle sewing waistband machine sews waistband, due to the need of subsequent production and manufacturing process, there cannot be sewing thread at the head and tail of the waistband sewing line, otherwise it will affect the subsequent process, cause the finished product of trousers to be not beautiful and the quality of the product to be low.According to the double needle sewing waistband machine of simultaneous needle skipping disclosed in the prior art CN217579279U, the first separating rod and the second separating rod are simultaneously pushed downward by the switching rod, achieving the purpose of simultaneous needle skipping, but the two pin heads of the switching rod and the first separating rod and the second separating rod cannot guarantee that the lengths of the two pin heads and the two separating rods are completely the same during processing, and even the contact planes of the pin heads and the separating rods are completely flush, so after leaving the factory, the first separating rod may reach the separating height due to the processing precision problem, the first needle rod skips, while the second separating rod does not reach the separating height, the second needle rod cannot skip, resulting in failure of double needle skipping, and the large misalignment also causes damage to the needle rod separator. SUMMARY

[0003] The utility model aims at providing a double needle sewing machine of synchronous control needle skipping, which can realize double needle skipping and double needle sewing process of the double needle sewing waistband machine and is not affected by processing precision, suitable for production and manufacturing.

[0004] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical scheme:

[0005] A double needle sewing machine of synchronous control needle skipping, comprising a switching rod, a needle rod separator and a needle structure, the switching rod is provided with a left pin head and a right pin head, the needle structure comprises a first needle rod and a second needle rod, the first needle rod is provided with a first separating rod and a first separating pin, the second needle rod is provided with a second separating rod and a second separating pin, the first separating rod and the second separating rod are connected through a synchronous structure, and the needle rod separator is provided with a reset pin.

[0006] Preferably, the synchronous structure is a synchronous block, the synchronous block is welded at the two ends of the first separating rod and the second separating rod respectively, and the synchronous block can ensure that the first separating rod and the second separating rod move synchronously and the moving distance is completely the same, without deviation.

[0007] Preferably, the utility model further comprises a gas cylinder, the gas cylinder is provided with a connecting rod, the switching rod is provided with a connecting clamping groove, the switching rod is clamped on the connecting rod through the connecting clamping groove, the connecting rod can be controlled to move back and forth by the gas cylinder, thereby driving the switching rod to move back and forth, and the switching rod is switched between pressing the reset pin and pressing the first separating rod and the second separating rod.

[0008] Preferably, the first needle rod is provided with a first needle head, and the second needle rod is provided with a second needle head, and the first needle head and the second needle head cooperate to perform double-needle sewing or double-needle skipping.

[0009] Preferably, the first needle head is fixed on the first needle rod through a first needle clamp, the second needle head is fixed on the second needle rod through a second needle clamp, and the first needle clamp and the second needle clamp are connected through a connecting seat, so that the needle head can be firmly and conveniently installed.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The utility model discloses a first needle rod separating pin and a first separating rod are set up on the first needle rod, a second separating pin and a second separating rod are set up on the second needle rod, and a switching rod is further arranged, wherein the first separating pin is connected with the first separating rod, when the first separating rod moves downward, the first separating pin pushes into the first needle rod, clamping the first needle rod, so that the first needle rod no longer moves up and down along with the driving part, the second separating pin is connected with the second separating rod, when the second separating rod moves downward, the second separating pin pushes into the second needle rod, clamping the second needle rod, so that the second needle rod no longer moves up and down along with the driving part, a left pin head and a right pin head are further arranged, the left pin head can press the first separating rod, the right pin head can press the second separating rod, and the switching rod can press the first separating rod and the second separating rod at the same time, a synchronous structure is arranged between the first separating rod and the second separating rod, the synchronous structure connects the first separating rod and the second separating rod, ensuring that the first separating rod and the second separating rod move downward synchronously and the downward distance is completely the same, so that the problem that the left pin head or the right pin head reaches the separating height in advance while the other end pin head does not reach the separating height due to the process precision, thereby causing the double-needle skipping failure, is avoided, the problem that the needle rod separator is damaged and cannot be used due to the relatively large displacement is avoided, the stability of the double-needle skipping process is ensured, and the double-needle sewing waistband machine can more easily skip and sew at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the utility model;

[0013] Figure 2 It is a side view structure schematic view of the utility model, wherein the needle rod structure is hidden;

[0014] Figure 3 It is a left view structure schematic view of the utility model, wherein the needle rod structure is hidden;

[0015] Figure 4 It is a double-needle skipping structure schematic view of the utility model;

[0016] Figure 5 It is a double-needle sewing structure schematic view of the utility model;

[0017] Figure 6 This is a schematic diagram of the synchronization structure in this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0020] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature; secondly, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0023] Please see Figures 1-6 , Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention, in which the needle bar structure is hidden; Figure 3This is a schematic diagram of the left side structure of this utility model, in which the needle bar structure is hidden; Figure 4 This is a schematic diagram of the structure of the double-needle skipping needle of this utility model; Figure 5 This is a schematic diagram of the double-needle sewing structure of this utility model; Figure 6 This is a schematic diagram of the synchronization structure in this utility model.

[0024] This utility model provides a double-needle sewing machine with synchronous control of skipped needles. The component names corresponding to the numbers in the figure are as follows: switching lever 1, needle bar separator 2, left pin head 3, right pin head 4, first needle bar 5, second needle bar 6, first separator lever 7, second separator lever 8, reset pin 9, and synchronization block 10.

[0025] A double-needle sewing machine with synchronously controlled skipped needles includes a switching lever 1, a needle bar separator 2, and a needle structure. The switching lever 1 is provided with a left pin head 3 and a right pin head 4. The needle structure includes a first needle bar 5 and a second needle bar 6. The first needle bar 5 is provided with a first separating rod 7 and a first separating pin. The second needle bar 6 is provided with a second separating rod 8 and a second separating pin. The first separating rod 7 and the second separating rod 8 are connected by a synchronous structure. The needle bar separator 2 is provided with a reset pin 9.

[0026] The synchronization structure is a synchronization block 10. The two ends of the synchronization block 10 are respectively welded to the first separation rod 7 and the second separation rod 8. The synchronization block 10 can ensure that the first separation rod 7 and the second separation rod 8 move synchronously and the distance of movement is exactly the same, without any deviation.

[0027] It also includes a cylinder with a connecting rod on it. The switching rod 1 is provided with a connecting slot. The switching rod 1 is connected to the connecting rod through the connecting slot. The cylinder can control the connecting rod to move back and forth, thereby driving the switching rod 1 to move back and forth, so as to switch the switching rod 1 between pressing the reset pin 9 and pressing the first separation rod 7 and the second separation rod 8.

[0028] The first needle bar 5 is equipped with a first needle head, and the second needle bar 6 is equipped with a second needle head. The first needle head and the second needle head work together to perform double-needle sewing or double-needle skipping stitch.

[0029] The first needle is fixed to the first needle bar 5 by the first needle clamp, and the second needle is fixed to the second needle bar 6 by the second needle clamp. The first needle clamp and the second needle clamp are connected by a connecting seat, which can ensure that the needle is installed firmly and conveniently.

[0030] The method of using and working this utility model is as follows:

[0031] In the double-needle sewing process, the air cylinder is started, the switching lever 1 is moved, the reset pin 9 is no longer pressed by the switching lever 1, the left pin head 3 of the switching lever 1 presses the first separation lever 7, and the right pin head 4 of the switching lever 1 presses the second separation lever 8, and the first separation lever 7 drives the second separation lever 8 through the synchronous block 10, so that the second separation lever 8 moves synchronously regardless of the height of the first separation lever 7, and deviation does not occur, the first needle bar 5 and the second needle bar 6 no longer move with the driving member, and the double-needle skipping process is realized.

[0032] In the double-needle skipping process, the air cylinder is started, the switching lever 1 is moved, the reset pin 9 is no longer pressed by the switching lever 1, the left pin head 3 of the switching lever 1 presses the first separation lever 7, and the right pin head 4 of the switching lever 1 presses the second separation lever 8, and the first separation lever 7 drives the second separation lever 8 through the synchronous block 10, so that the second separation lever 8 moves synchronously regardless of the height of the first separation lever 7, and deviation does not occur, the first needle bar 5 and the second needle bar 6 no longer move with the driving member, and the double-needle skipping process is realized.

[0033] Compared with the prior art, the utility model have the advantages that:

[0034] The utility model discloses a first needle bar 5 separation pin and first separation lever 7 are set up on the first needle bar 5, second separation pin and second separation lever 8 are set up on the second needle bar 6, still be provided with switching lever 1, wherein, first separation pin and first separation lever 7 are connected, when first separation lever 7 moves downward, first separation pin pushes into first needle bar 5 inside, hold up first needle bar 5, first needle bar 5 no longer follow driving member up and down movement, second separation pin and second separation lever 8 are connected, when second separation lever 8 moves downward, second separation pin pushes into second needle bar 6 inside, hold up second needle bar 6, second needle bar 6 no longer follow driving member up and down movement, still be provided with left pin head 3 and right pin head 4, left pin head 3 can press tightly first separation lever 7, right pin head 4 can press tightly second separation lever 8, switching lever 1 can press tightly first separation lever 7 and second separation lever 8 simultaneously, the utility model is provided with synchronous structure between first separation lever 7 and second separation lever 8, synchronous structure connects first separation lever 7 and second separation lever 8, guarantees first separation lever 7 and second separation lever 8 synchronous downward movement, and the distance is completely same, will not appear because the process precision problem, lead to left pin head 3 or right pin head 4 reach separation height in advance, and the other end pin head has not reached separation height, thereby lead to double-needle skipping failure, avoid because the problem of larger misplacement also can lead to needle bar separator 2 damage and can not use, guarantee the stability of double-needle skipping process, can make double-needle sewing waistband machine skip needle sewing simultaneously more easily.

[0035] Therefore, the utility model provides a kind of double-needle sewing machine of synchronous control skipping needle, can realize the double-needle skipping and double-needle sewing process of double-needle sewing waistband machine, and will not be influenced by machining precision, is suitable for production and manufacture uses.

[0036] The above merely is the preferred embodiment of the present application, it should be pointed out that the above preferred embodiment should not be regarded as the limitation of the present application, the protection scope of the present application should be limited by the range defined by the claims. For the ordinary skilled in the art, without departing from the spirit and scope of the present application, can make several improvements and refinements, these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A twin needle sewing machine with synchronized control of the needles, characterized in that, Including switch rod, needle rod separator, needle structure, the switch rod is provided with left pin head and right pin head, the needle structure includes first needle rod, second needle rod, the first needle rod is provided with first separation rod and first separation pin, the second needle rod is provided with second separation rod and second separation pin, the first separation rod and the second separation rod are connected through synchronization structure, the needle rod separator is provided with reset pin.

2. The twin needle sewing machine with synchronized control of the needles according to claim 1, characterized in that, The synchronization structure is a synchronization block, and the synchronization block is welded at the first separation rod and the second separation rod at both ends.

3. The twin needle sewing machine with synchronized control of the needles according to claim 1, characterized in that, It also includes a cylinder, the cylinder is provided with a connecting rod, the switch rod is provided with a connecting slot, the switch rod is clamped on the connecting rod through the connecting slot.

4. The twin needle sewing machine with synchronized control of the needles according to claim 1, characterized in that, The first needle rod is provided with a first needle head, and the second needle rod is provided with a second needle head.

5. The twin needle sewing machine with synchronized control of the needles according to claim 4, characterized in that, The first needle head is fixed on the first needle rod through a first needle clamp, the second needle head is fixed on the second needle rod through a second needle clamp, and the first needle clamp and the second needle clamp are connected through a connecting seat.

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