KR20030087344A - Control equipment for needle work for needle head part of embroidery machine - Google Patents

Abstract

PURPOSE: A device for controlling power of elevating needle stand is capable of doing embroidery having various colors and patterns, reducing a power cost, controlling each needle stand, minimizing an interval of a needle head part, increasing productivity and controlling an interval of embroidery. CONSTITUTION: The controlling device of power elevating the needle stand comprises: a cam(5) rotated by power delivered from a main shaft(1); one end of a crank(6) installed on a shaft(5b) and the other end installed on a shaft(11a) of a guide(11) elevating on following a guide bar(10); the guide(11) installed on the guide bar(10) and connected with a supporting board(21) to operate together; the supporting board(21) containing three legs; each leg formed two connecting holes and one hole; elevating plates which are installed on contacting with one side of the supporting board(21), containing protrusions corresponded to holes of the supporting board(21) and two holes for screws; 'L' type needle stand couplings formed one hole on the middle part and groove corresponded to a protrusion shaft(13a) of a fixing piece(13) of the needle stand(7); and a solenoid having an operating shaft installed on a supporting frame on contacting with one side of the needle stand couplings and moving the needle stand couplings on following operation of the operating shaft to control the protrusion shaft(13a) and work of the needle stand(7).

Description

Needle bar power control device for needle head of embroidery machine {CONTROL EQUIPMENT FOR NEEDLE WORK FOR NEEDLE HEAD PART OF EMBROIDERY MACHINE}

The present invention relates to a needle bar raising and lowering power control apparatus for controlling the needle lowering or stopping operation of the needle bar by selectively transmitting power or releasing power transmission to the needle bar of the needle head in the embroidery machine.

In a single or multi-color embroidery machine, one or more needle bars are installed on the needle head, and the appropriate needle bar is selected and worked according to the desired embroidery or quilting work. Alternatively, it is necessary to control an operation such as stopping.

Conventionally, since it is composed of a combination of a plurality of parts driving the operator and the rotational drive is mainly performed, the interference between the parts during the operation is poor and poor working environment due to excessive noise, and also work when increasing the operating speed of the embroidery machine Due to this instability, there is a limit in the increase of the work speed, and frequent replacement is required due to the damage of the operator due to the interference between parts, resulting in a lot of cumbersome work, resulting in problems such as work time and manpower wasted.

With respect to the above problems, the present applicant is to rotatably build a control mechanism to operate by using an operating mechanism such as an electrically operated solenoid as in the Republic of Korea Patent Registration No. 194-5369 rotatably on top of the embroidery machine needle head According to the operation of the coupling adjustment mechanism installed in the center of the hinge coupling hingedly fixed to the guide in the state of the guide, and the sliding coupling to form a sliding groove and the needle bar is provided with a fixture having a protruding end of the sliding groove In the state in which the protruding end of the fastener is fitted, the control mechanism and the change coupling have been provided to provide a device for smoothly controlling the power control of the needle bar such as raising and lowering the needle bar and stopping operation. .

In addition, conventional embroidery machines adopt a method of transmitting a power to a needle bar or a thread take-up through a plurality of link structures by forming a sliding groove of a predetermined shape on one side of the cam, but through a plurality of link structures. There is a problem that the machine must be large because it cannot be narrowed, and the implementation of various color embroidery with a narrow gap was fundamentally difficult.

In order to solve this problem, the applicant drives the camshaft at right angles by the helical gear from the main shaft as in Korean Patent Registration No. 194-5368, and installs a crank on the front of the cam to enable the elevating operation of the needle bar. The cam head is formed in the outer periphery of the cam to reciprocate back and forth to provide a power transmission device that allows the thread take-up link to move in a certain angle range, and the thread take-up that is engaged with it can be rotated up and down. Compared to the conventional embroidery machine having the same width, a larger number of needle heads can be mounted in a larger number than needle heads, and a pattern of a small size can be worked all over the width.

However, in the above case, due to the unity of the control mechanism during the operation control through the solenoid, a plurality of needle bars can only be operated or controlled at the same time, and thus can not be controlled individually. This implies a problem of various embroidery or quilting operations. Was doing.

The present invention has been made to solve the above-mentioned conventional problems, the main object of the present invention is to improve the structure of the conventional control mechanism as a support having a simple form of resistance and connecting the entire plurality of needle bar through a single solenoid / It is to provide a device to enable the connection / interruption of each of the needle bar by installing a solenoid for each of the needle bar in the control.

Another object of the present invention is to interrupt only a single needle bar with a single power source through the above configuration, but to operate a plurality of needle bar with a single power source and to drive each of the needle bars separately, embroidered by selective power interruption control of the needle bar. The goal is to make work more broad and smooth.

Another object of the present invention is to be able to perform a variety of embroidery or quilting operation through the operation of each needle bar.

It is another object of the present invention to provide an apparatus capable of minimizing the spacing of the needle head portions to enable the driving of a plurality of needle bars in a single drive.

Another object of the present invention is to expand the production range and increase the productivity of the acupuncture product by including a function of the existing machine to enable a variety of color embroidery or quilting of the narrow gap by minimizing the gap of the needle head portion.

Another object of the present invention is to reduce power consumption by allowing a plurality of needle bar to be interlocked through a support with only a single drive motor operation.

1 is a partially omitted plan view showing a conventional needle bar single drive method,

Figure 2 is a longitudinal sectional view of the needle head portion to which the present invention is applied;

Figure 2a is a longitudinal cross-sectional view showing another embodiment of the thread take-up and thread take-up link in Figure 2,

3 is an exploded perspective view showing an exploded assembly state of FIG.

Figure 4 is a perspective view showing a state in which the support plate of the present invention is mounted on the needle head,

5a to 5c is an operation diagram showing the operation of each needle bar according to the operation of the support plate and the solenoid of the present invention,

Figure 6 is a perspective view showing that the head portion of the embroidery machine to which the present invention is applied are installed in succession.

<Description of the symbols for the main parts of the drawings>

1st Axis 3rd Helical Gear

4 Camshaft 5 Cam

6 crank 7 needle bar

8 thread link 9 thread link

10 Guide Bar 11 Guide

12 Needle bar coupling 13 Fixture

21 Support plate 22, 23

Needle Coupling

F frame S solenoid

Needle bar lifting power control device according to the present invention for achieving the above object is a guide for lifting and lowering along the guide bar while turning by the crank rotating in accordance with the operation of the helical gear and the cam according to the rotation of the main shaft And a needle bar coupling between the elevating plate and the needle bar coupling, and the three needle bar couplings are fixed to each of the needle bar couplings, and the protrusions formed on the fixture of the needle bar are inserted into the recesses of the needle bar couplings, respectively. It consists of a support plate that allows the guide, the needle bar coupling and the needle bar to move up and down at the same time while turning up and down.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted, and the following terms are used in the present invention. As defined in consideration of the terms, they may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout the specification.

1 is a partial schematic plan view showing a conventional needle bar single drive method, Figure 2 is a longitudinal cross-sectional view of the needle head portion to which the present invention is applied, Figure 2a is a needle head portion showing another embodiment of the thread take-up and thread take-up link of FIG. Figure 3 is an exploded perspective view showing an exploded assembly state of Figure 2, Figure 4 is a perspective view showing a state in which the support plate of the present invention mounted on the needle head, Figures 5a to 5c is the operation of the support plate and the solenoid of the present invention 6 is an operation view showing the operation of each needle bar according to, Figure 6 is a perspective view showing that the head portion of the embroidery machine to which the present invention is applied are installed in succession.

Needle bar lifting power control device of the embroidery machine needle head of the present invention is the first helical gear (2) is installed as shown in Figure 1 to 5 attached to the main shaft (1) for transmitting power and the first helical gear The second helical gear (3) and the second helical gear (3) which are engaged with the (2) to switch the direction of transmission of power are arranged and rotated according to the rotation of the main shaft (1) and the cam. The guide 11 is fixed to the (5) is installed on the guide crank (10) is fixed to the crank (6) and the frame (F) to rotate in accordance with the rotation of the cam, and the guide (11) to move up and down according to the rotation of the crank (6) ) And the support shaft 21 connected to the guide 11 and the lifting shafts 22 and 23 installed on the left and right sides of the support 21 and the protruding shafts of the lifting plate 22 and 23, respectively. 22a) (23a) is inserted and fixed with bolts, but integrally manufactured and applied to the lower end of the solenoid (S) by the force A shaft protruding from the needle bar couplings 24 and 25 and 26 having a structure rotatable about the protruding shafts 22a and 23a and the fixture 13 which is engaged with or released from the needle bar coupling. It consists of the needle bar 7 which has 11a.

The operation and effects on the present invention configured as described above will be described.

Referring to FIGS. 1 to 3, the first helical gear 2 is installed on the main shaft 1 for transmitting power to switch the direction of power transmission and is engaged with each other at right angles to the second helical gear 3. Transmit torque to the

The second helical gear 3 is arranged on the cam shaft 4 arranged to be rotatable on the outer frame F to rotate the cam shaft 4. A cam 5 is formed at the other end of the cam shaft 4, and a cam groove 5a having a constant width is formed at the outer circumference of the cam 5 and is able to slide forward and backward, and at one front of the cam shaft 4 so that it can be built up. A female screw is formed.

The cam groove 5a of the cam 5 is provided with a thread take-up link 8 linked with the thread take-up 9. Here, the thread take-up link 8 is formed of a ball bearing 8c fixedly installed at one end thereof with a size suitable for the cam groove 5a and sliding at the other end thereof, and the rotary roll 8b is formed at the cam groove ( 5a) and the ball bearing 8c is fitted to the bent portion formed in the lower portion of the take-up machine (9). Therefore, as the cam 5 rotates as the cam shaft 4 rotates, the thread take-up link 8 is operated and the thread take-up 9 is interlocked to perform the thread take-up operation.

The crank 6 is pivoted in accordance with the rotation of the cam (5) to move up and down and are produced integrally with a hole of a predetermined size in each of the upper and lower portions. In the upper hole, a bearing 16 such as a needle bearing or a roller bearing is rolled so as to be perturbable, and a shaft 5b is inserted into the inner diameter of the bearing 16 to be fastened with a female screw formed in the cam 5. It is an axis. At this time, the bush 15 is used to prevent surface wear between the crank 6 and the cam 5. The hole in the lower side is coupled with the shaft 11a protruding from the guide 11 that moves up and down along the guide bar 10.

Guide bar 10 is fixed to the upper and lower ends of the frame (F).

The guide 11 is inserted into the guide bar 10 and ascends and descends on the guide bar 10 according to the pivoting motion of the crank 6 coupled with the shaft 11a of the guide 11. The guide 11 has two fastening screws to be integrally operated with the support 21. One end of the guide 11 protrudes a shaft 11a protruding from the crank 6, and the other end of the guide 11 is installed in contact with a hole of the support 21 and one surface of the support 21. It is rotated in accordance with the operation to pass through the hole of the needle bar coupling 25 to be engaged or disengaged with the protruding end (13a) installed in the fixture 13 of the needle bar (7) to the front of the wrench bolt (L) A protruding shaft 11b having a female screw portion is formed in the portion. An inner side of the guide 11 may have a precision machined surface or a precision machined sleeve may be inserted to move up and down smoothly along the guide bar 10.

The support 21 is integrated, but the lower portion can be branched into as many needles as necessary and has three corners in the present invention as a preferred embodiment. Each of the parts has two fastening holes for fixing to the guide 11 and the support frame, the protruding shafts 22a and 23a of the elevating plates 22 and 23, and the needle bar couplings 24 and 25 and 26. One hole is formed for the combination with).

The support 21 is coupled to the shaft 11b of the guide 11 to simultaneously move up and down with the lifting and lowering operation of the guide 11 by the operation of the cam 5 to thereby support the support 21. A plurality of connected needle bar 7 is operated at the same time to perform the embroidery work.

The support 21 should be designed in a structure that can sufficiently withstand the load caused by the lifting and lowering motion of the needle bar 7 is operated at a high speed in accordance with the rotation of the cam (5) is operated at a high speed. For this purpose, the material and the size were determined through various experiments, and the material showed the most desirable strength of SK5 and the thickness of 1.5mm.

By forming the needle head portion using the support 21 as described above, the gap between the needle heads is greatly reduced, so that embroidery and quilting work of various colors can be performed. Work became possible, and wide embroidery work was enabled.

The elevating plate (22, 23) is installed in contact with one surface of the support 21, the projection shaft 22a (23a) to fit the hole formed in each part of the support 21 is fixed and installed for screwing two A hole is formed.

Needle bar couplings 24, 25 and 26 can be fabricated in a variety of shapes using rigid metals or high strength engineering plastics. In the present invention, the "L" shape is formed in the center of the bent projection shaft (22a) (11b) (23a) is inserted into the hole to be rotated around the center of the needle bar (7) protruding of the fixture 13 Grooves are formed to be hooked to the shaft 13a, and the other end is provided to be in contact with the operating shaft operated according to the electrical control operation of the solenoid S. When the operation shaft of the solenoid (S) protrudes, the needle shaft coupling pushes out the protrusion shaft (13a) of the needle bar (7) fixture 13 which is caught while being rotated about the protrusion shafts (22a) (11b) (23a) of the center. ) Will fall out of the needle bar (7) will not work.

Needle bar 7 is a fixture 13 is fixed to a fixed position and the fixture 13 is formed with a projection shaft (13a). The bottom of the needle bar 7 is touched so that the needle bar is always in a certain position.

Referring to the overall operation of the present invention configured as described above,

Power transmitted from the main shaft 1 is redirected through the first and second helical gears 2 and 3 so that rotational force is transmitted through the cam shaft 4 built in the outer frame F to rotate the cam 5. And by moving the crank (6) connected to the cam (5) by lifting and lowering operation, the guide (11) connected to the crank (6) is moved up and down along the guide bar (10) and coupled with the guide (11) The support 21 and the support 21 and the needle bar coupling (24) (25) (26) and the needle bar (7) which is integrally coupled and driven to the lifting plate (22) (23) is interlocked to move up and down Do the necessary embroidery work.

At this time, by controlling the needle bar coupling by the on-off control operation of the solenoid by a predetermined program as necessary, the operation of the needle bar 7 can be selectively controlled / connected.

As described above, the present invention has been able to control a plurality of needle bars with a single power shaft, which has been controlled only by a single needle shaft by transmitting a single power shaft, and minimizes the distance between the needle heads by enabling the needle bars in a narrow space. Embroidery and quilting work with various colors and designs is possible, and it is possible to produce a wide range of bedding products.

According to the present invention as described above can be embroidered work with a variety of colors and can be a plurality of needle bar work for one drive shaft to induce a reduction in power costs and also to control the operation of each needle bar embroidery work of various patterns This is an invention with possible very useful effects.

In addition, by using the support to minimize the gap between the needle head portion can be produced a machine capable of a variety of tasks in the same space to increase the productivity and reduce the work space.

In addition, it is possible to adjust the embroidery interval, the gap of the kiln can be up to 2 "through this has the effect of widening the width of the acupuncture products.

In addition, through the export of the machine of the present invention has the effect that can contribute to improve the national competitiveness as a fiber power.

Claims (3)

In the power train of the embroidery machine needle bar, Cam 5 that rotates by the power transmitted from the main shaft (1); And The shaft 11a of the guide 11 which is constructed on the shaft 5b so that one side is slid in front of the cam 5 to rotate and descend as the cam 5 rotates, and the other side rides up and down on the guide bar 10. Crank 6 arranged in the; and It is inserted into the guide bar 10 and is coupled to the support 21 to have two fastening screws to be integrally operated. One end of the shaft 11a coupled with the crank 6 is protruded, and the other end is a protrusion having a female screw part. A guide 11 having a shaft 11b formed therein; and It is made of a thin plate integrally and has three corners (하부 部) in the lower portion of the support portion 21 formed with two fastening holes and one hole in each of the; Protruding shafts 22a and 23a which are installed in contact with one surface of the support 21 and fitted to the holes formed in the respective portions of the support 21 are fixedly installed, and the lifting plate 22 and 23 having two screwing holes formed therein. ;and Needle bar couplings 24, 25, and 26 having a recess formed at one end thereof in the center of the L-shape, and having a recess formed at one end thereof in accordance with the protruding shaft 13a of the needle bar 7; The operating shaft is fixed to the support frame to be in contact with one end of the needle bar coupling (24, 25, 26), and the needle bar coupling (24, 25, 26) by rotating the needle bar coupling (7) fixture according to the operation of the operating shaft Solenoid (S) to control the operation of the needle bar by controlling the protruding end (13a) of (13); And Needle bar (7) having a protruding shaft (13a) and a fixture (13) installed at a predetermined position; The needle bar coupling and the needle bar are simultaneously raised or lowered according to the driving of the cam, or the needle head can be driven in a narrow space where the needle bar is selectively operated by the operation of the solenoid. Needle bar lifting power control device for the needle head of the embroidery machine, characterized in that it can be minimized. The method of claim 1, The support plate 21 is a one-piece thick 1.5mm thick needle bar lifting power control device, characterized in that the material is SK5. The method according to claim 1 or 2, The lower portion of the support plate 21 is a needle bar lifting power control device, characterized in that made of N needles to operate the N needle bar.