TWM580552U - Bag opening sewing machine with double needles and double threads - Google Patents

Abstract

The present invention provides a double-needle double-line seaming machine, comprising a body having a front base and a top upper arm; a needle plate disposed on the base of the vehicle having two pinholes and a surrounding needle a plurality of grooves of the hole; a needle bar disposed in the upper arm of the vehicle head, which is provided with two needles, the needle bar reciprocates up and down and drives the needle; the curved needle table disposed in the base of the vehicle head periodically swings The movement causes the two curved needles disposed on the curved needle drive shaft to reciprocate with the needle; the feed tooth drive shaft disposed in the base of the vehicle head is connected with a plurality of feed teeth, and the feed tooth drive shaft periodically swings And thereby driving a plurality of feeding teeth, the feeding teeth will protrude upward in the vertical direction or retract downwardly above the surface of the needle plate in the vertical direction, and the feeding teeth will reciprocate along the groove in the horizontal direction. Movement; characterized in that: two over-line hooks are arranged below the needle plate, and the line hooks in the horizontal direction correspond to the positions where the needles pass down through the needle holes.

Description

Double needle double seam sewing machine

This creation relates to a seaming machine, in particular a double needle double seam sewing machine.

Generally, plasticized materials, food materials, or fertilizers are prepared and filled into bags. The bag mouth is required to be sewn by a seaming machine. In order to improve the stitching strength, it is generally necessary to sewn two chain stitches to prevent the bag mouth from being opened.

The conventional sewing machine is a single-needle single-line or double-needle four-line sewing machine. The single-needle single-thread sewing machine can only complete one chain stitch at a time, so it should be in the bag of the stitched object. If the seam is sewn on the mouth, it must be completed twice by sewing. However, the seaming machine needs to be carried by the user to carry the material that has been filled with the material, and the seam is stitched on the seaming machine. It is very easy to cause the gap between the two chain stitches to be different. In addition to affecting the appearance, the seam strength of the bag mouth is also insufficient. While the needle of the double-needle four-line sewing machine can complete two chain stitches at one time and is firm enough, the two chain stitches must be completed by four stitches.

The present invention is a double-needle double-line seaming machine comprising: a body having a front base located below and a front upper arm located above the front, the upper arm and the base of the front are spaced apart from each other; the needle plate is disposed at the base of the vehicle The needle plate has two pinholes and a plurality of teeth on opposite sides of the needle hole; the needle bar is disposed in the upper arm of the vehicle head, and the needle bar is driven to reciprocate axially upward; the second needle is The needles are fixed under the needle bar, arranged in parallel with each other and axially corresponding to the needle hole; and the feed tooth drive shaft is arranged in the base of the vehicle head, and the feed tooth drive shaft is connected with a plurality of feed teeth, and the feed teeth are from the bottom to the bottom The tooth groove is protruded upward to protrude above the needle plate, and the feeding tooth drive shaft is driven to drive the feeding tooth to reciprocate in the horizontal direction; wherein: the needle plate is provided with two over-line hooks, and the wire hook is horizontally a position corresponding to the needle hole passing through the needle hole; and a bending needle transmission shaft disposed in the base of the vehicle head, a curved needle driving link is arranged on the curved needle driving shaft, and a curved needle table is arranged on the curved needle driving link, Set two The needle and the looper drive shaft are driven and drive the looper drive link to cause the looper table to perform a periodic swing motion, and the swinging of the looper is matched with the reciprocating motion of the needle and the hook, the stitch and the looper cooperate with each other. The reciprocating action constitutes the sewing action.

With this creation, the chain stitch can be formed by double needle and double thread, which not only has beautiful appearance and increases structural strength, but also saves materials and man-hours.

Embodiments of the present creation will now be described in detail, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals will be used in the drawings

Advantages and features of the present invention, as well as implementation methods, will be clarified by the embodiments described in the following figures. However, the present invention may be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. Conversely, the provision of these embodiments will make the present invention more thorough and complete, and will fully convey the scope of the present invention to the ordinary knowledge. In addition, this creation is limited only by the scope of the patent application.

The shapes, dimensions, ratios, angles, and numbers of embodiments of the present disclosure disclosed in the drawings are merely examples, and thus, the present creation is not limited to the details of the drawings. In the following description, when it is determined that a detailed description related to a known function or configuration may unnecessarily obscure the focus of the present invention, the detailed description will be omitted.

Unless the description of "only" is used, other components may be added when the descriptions of "include", "have", and "include" are used in this specification. Unless otherwise stated, the singular terms may include the plural.

When interpreting an element, the element is interpreted to include an error range, although not explicitly stated.

When describing a positional relationship, for example, when the positional relationship between the two parts is described as "upper", "upper", "bottom", and "side", one or more other components may be disposed between the two components. Unless a description of "only" or "direct" is used.

Hereinafter, examples and embodiments of a double needle double seam seaming machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view showing a double needle double seam seaming machine in an example according to an embodiment consistent with the principles described in the present writing. Fig. 2 is an enlarged schematic view of the needle bar and the needle of the base of the double-needle double-slot bag machine of the present invention. Fig. 3 is a partially enlarged schematic view of the base of the front of the double needle double-slot bag machine of the present invention. As shown in FIG. 1 to FIG. 3, the double needle double seam sewing machine of the present invention includes a body 100. The body 100 has a lower head base 300 and an upper head upper arm 200. The front upper arm 200 and the front base 300 are spaced apart from each other by a distance slightly larger than the thickness of the seam to allow the seam to enter between the two. The procedure for sewing the seam is performed between the front upper arm 200 and the front base 300.

A needle bar 210 is disposed in the upper arm 200 of the vehicle head, and the needle bar 212 is locked under the needle bar 210, and the two needles 211 whose needle tips are directed to the head base 300 are disposed under the misalignment. The needle bar 210 is driven to reciprocate up and down, and thereby the two needles 211 are driven. The two stitches 211 are parallel to each other, and two stitches can be respectively disposed thereon. The two stitches 211 are for allowing two stitches (not shown) respectively threaded thereon to be inserted into or out of the object to be wound (not shown). It should be noted that the second stitch 211 does not draw a threading hole thereon for the convenience of explanation. A looper drive shaft 318 and a feed tooth drive shaft 330 are disposed in the front base 300, and a needle plate 310 is disposed on the front base 300. A looper drive link 319 is disposed on the looper drive shaft 318, and a looper table 320 is disposed on the looper drive link 319, and two looper pins 321 having a needle tip direction perpendicular to the two needles 211 are disposed on the looper table 320 in a misaligned manner. Its setting position corresponds to the position of the two needles 211. The looper drive shaft 318 is driven to rotate, and drives the looper drive link 319 and the looper table 320 disposed on the looper drive link 319 to cause the looper table 320 to perform the periodic swinging motion of the fit needle bar 210. And thereby driving the two curved needles 321 and moving the direction of their movement to the direction of movement of the two needles 211. Two curved needles 321 are used to hook and pull the suture. The reciprocating motion and the swinging motion in which the two stitches 211 and the two curved needles 321 cooperate with each other constitute an action of the sewing.

A plurality of feed teeth 331 are connected to the feed tooth drive shaft 330. The feed tooth drive shaft 330 is driven to perform a periodic oscillating motion of the mating needle bar 210 and thereby drive a plurality of feed teeth 331. The position and number of the plurality of feed teeth 331 correspond to the plurality of grooves 311, and the feed tooth drive shaft 330 is driven to perform periodic swinging, thereby driving a plurality of feed teeth 331, and the plurality of feed teeth 331 are vertically oriented. It may protrude upward in the plurality of grooves 311 on the surface of the needle plate 310 or downwardly under the surface of the needle plate 310, and the plurality of feeding teeth 331 will be horizontally in the plurality of grooves 311 along the edge. A plurality of grooves 311 are reciprocated. A plurality of feed teeth 331 cause the seam to step into between the upper head arm 200 and the head base 300.

A motor (not shown) is disposed at the bottom of the body 100. The motor drives the pulley 120 disposed on the body 100 to rotate. The rotating pulley 120 is coupled to the lower spindle 130 disposed in the body 100. When the lower spindle 130 moves, the needle is driven. The rod 210 reciprocates up and down, drives the looper drive shaft 318 to rotate, and drives the feed tooth drive shaft 330 to periodically oscillate, and moves the needle bar 210, the looper table 320, and the feed tooth drive shaft 330 to cooperate with each other.

Figure 4-1 shows a top view of the needle plate 310 in the example, in accordance with an embodiment consistent with the principles described in this creation. Figure 4-2 shows a bottom view of the needle plate 310 in the example, in accordance with an embodiment consistent with the principles described in this creation. As shown in FIG. 4-1 and FIG. 4-2, the needle plate 310 has two pinholes 313 and a plurality of teeth 311 surrounding the two pinholes 313. Two wire hooks 312 are disposed under the needle plate 310. The wire hook 312 corresponds to the position of the second needle 211 through the needle hole 313 in the horizontal direction. When the two hooks 321 pull the two stitches (not shown) respectively, the two hooks 312 will hook the two stitches to form two holes. In addition, the two wire hooks 312 can be disposed under the needle plate 310 by fixing members such as two screws, two buckles, or two latches. Alternatively, the two hooks 312 may be integrally formed with the needle plate 310.

In addition, a presser foot 230 can be disposed in the upper arm 200 of the vehicle head for clamping the workpiece between the presser foot 230 and the base of the vehicle head 300, thereby reducing the influence of the deformation of the workpiece on the sewing motion. In addition, the body 100 can be provided with two salads 140 for winding the suture. Furthermore, the upper arm 200 of the vehicle head can be provided with two wire holes 220 for guiding the sewing thread into the two needles 211.

Fig. 5-1 to Fig. 5-3 are diagrams showing the operation of the needle 211, the looper 321 and the thread hook 312 of the double needle double seam bag machine of the present invention. As shown in FIG. 5-1 to FIG. 5-3, when the suture is sutured, the two needles 211 reciprocate up and down and the two loopers 321 perform a periodic swing motion, and the two movements cooperate with each other. When the two needles 211 are moved downward, the seams are inserted into the seams and the two seams respectively threaded thereon are put into the seams together. Subsequently, the two curved needles 321 will hook and pull the two stitches on the two needles 211, while the two needles 211 are retracted upward, so that one of the two stitches is away from the two needles 211. Subsequently, when the two hooks 312 pull the two stitches (not shown) respectively, the two hooks 312 will hook the two stitches to form two holes. Subsequently, the two stitches 211 penetrate the two stitches respectively pierced therein into two holes. Subsequently, the looper 321 releases the suture and causes the suture to self-wrap into a single-needle single-strand chain structure.

In addition, the head base 300 may have a needle stop 322 therein, and the needle stop 322 will abut against the needle 211 when the needle 211 moves downward to prevent the needle 211 from being deformed by the suture pulling, and when the needle 211 is moved upward, The suture is moved by the needle stop 322 to form a hole shape, so that the looper 321 can easily hook the suture.

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

The main purpose of the present invention is to achieve a double-needle and double-line sewing by two sewing needles 211, two curved needles 321 , and feeding teeth 331 and a threaded hook 312 which cooperate with each other.

In this way, the author has the following implementation effects and technical effects:

First, the user can stitch the mouth of the bag by the creation, and make the two chain stitches parallel, beautiful and firm.

Second, only two stitches are required to complete the two chain stitches, which saves the wire compared to the double-needle and four-wire type.

The above description is only a preferred embodiment for explaining the present creation, and is not intended to impose any form of restriction on the creation, so that any modification or change related to the creation under the same creative spirit is provided. , should still be included in the scope of this creative intent.

100‧‧‧ body

120‧‧‧ Pulley

130‧‧‧ Lower spindle

140‧‧‧ Salad

200‧‧‧ head upper arm

210‧‧‧ needle stick

211‧‧‧ stitches

212‧‧‧ needles

220‧‧‧Wire hole

230‧‧‧Foot press

300‧‧‧ head base

310‧‧‧ needle board

311‧‧ ‧ tooth groove

312‧‧‧Through the hook

313‧‧‧ pinhole

318‧‧‧bend needle drive shaft

319‧‧‧bend needle drive connecting rod

320‧‧‧bend needle table

321‧‧‧bend needle

322‧‧‧ needle stop

330‧‧‧Feed drive shaft

331‧‧‧Feed teeth

The various features of the examples and embodiments, which are in accordance with the principles described herein, may be more readily understood by reference to the Detailed Description  1 is a perspective view showing a double needle double seam sewing machine in an example according to an embodiment consistent with the principle described in the present creation;  Figure 2 is an enlarged schematic view of the needle bar and the needle of the base of the double needle double-seam bag machine of the present invention;  Figure 3 is a partial enlarged view of the base of the front of the double needle double-slot bag machine of the present invention;  Figure 4-1 is a perspective view of the needle plate of the double needle double-slot bagging machine of the present invention;  Figure 4-2 is a top view of the needle plate of the double needle double seam bag machine of the present invention;  Figure 5-1 to Figure 5-3 are the schematic diagrams of the action of the needle, the curved needle and the hook of the double needle double-stitch bag machine.  

Claims (9)

A double needle double seam sewing machine includes:  a body having a base base at a lower side and an upper arm of the upper portion, the upper arm of the front end and the base of the vehicle head being spaced apart from each other; and  a needle plate is disposed on the base of the vehicle head, the needle plate has two pinholes;  It is characterized by:  a needle bar is disposed in the upper arm of the vehicle head, and the needle bar is locked with a needle needle, and two needles are disposed thereon, the two needles are arranged in parallel with each other and axially corresponding to the needle hole, the needle bar Being driven to reciprocate up and down and to drive the needles;  a curved needle drive shaft is disposed in the base of the vehicle head, and a curved needle driving link is disposed on the curved needle drive shaft, and a curved needle table is disposed on the curved needle driving link, and two curved needles are disposed on the curved needle driving link The needle drive shaft is driven to rotate, and drives the looper drive link to cause the looper table to perform a periodic swinging motion, and the swinging of the looper needles to cooperate with the needle reciprocating motion;  Two wire hooks are disposed under the needle plate, and the wire hooks are horizontally aligned with the needles passing downward through the needle holes.   The double-needle double-thread seaming machine according to the first aspect of the invention, wherein the double-needle double-thread seaming machine comprises a feeding gear transmission shaft disposed in the base of the vehicle head, the feeding gear transmission shaft Connected with a plurality of feed teeth, the feed tooth drive shaft is driven to perform periodic swinging, and thereby drive the plurality of feed teeth, the plurality of feed teeth protruding upward in the vertical direction on the surface of the needle plate Or retracting downwardly under the surface of the needle plate, and the plurality of feed teeth reciprocate in a horizontal direction. The double needle double seam sewing machine according to the second aspect of the invention, wherein the double needle double seam sewing machine comprises a needle stop, and the needle stop abuts when the needle moves downward. Next to the needle. The double needle double seam seaming machine according to the second aspect of the invention, wherein the needle plate has a plurality of teeth surrounding the needle insertion holes, the number and the position of which correspond to the plurality of feeding teeth, The plurality of feed teeth protrude from the needle plate through the plurality of teeth, and the plurality of feed teeth reciprocate in a horizontal direction along the plurality of grooves in the plurality of grooves. The double needle double seam seaming machine according to claim 1, wherein the two hooks, the two buckles, or the two latches are disposed as fixing elements under the needle plate. The double-needle double-thread seaming machine according to claim 1, wherein the wire hooks are integrally formed with the needle plate. The double needle double seam seaming machine according to claim 1, wherein the body is provided with two salads. The double-needle double-thread seaming machine according to the first aspect of the invention, wherein the upper arm of the vehicle head is provided with two wire holes. The double-needle double-thread seaming machine according to the first aspect of the invention, wherein a presser foot is arranged under the upper arm of the vehicle head.