WO2004048669A1 - Flocking machine - Google Patents

Abstract

A flocking machine has a needle (51) with a thread (55) inserted in a needle hole (51a), the needle (51) moving up and down through the upper and lower surfaces of a base fabric (54). Further, a hook shaft (6) rotates in response to the up and down motion of the needle (51). And, a hook body (1) having a hook blade (5) attached to the hook shaft (6), and the hook shaft (6) are rotated to cooperate with a lifting blade (10) to cut the thread (55), followed by flocking.

Description

 Hair transplanter

Technical field

 The present invention relates to a flocking machine for producing a carpet, a mat, or the like by flocking a large number of yarns on a base cloth.

About. book

Background art

 With regard to the base cloth flocking machine, the creation of carpet will be described with reference to FIG.

 Fig. 12 shows the cross section of the base cloth. To manufacture the carpet, the base cloth 100 is planted with the yarn 101 and the yarn 101 is cut one by one while the base cloth is cut at a predetermined pitch. The thread 101 is planted on 100.

 A needle 105 that moves up and down is attached to the main body (not shown) of the flocking machine, and a needle hole 105 a provided at the tip of the needle 105 is provided with a thread 105 from a stock bobbin (not shown). 1 is purchased. In addition, below the needle 105, there is provided a swing shaft 107 which is swung by a swing mechanism (not shown) in correspondence with the elevation of the needle 1◦5. L-shaped hook body 108 is attached to 107. The spire tip 108 a of the hook body 108 is inserted into a thread loop formed of a thread 105 described later, and a cutting blade 108 is provided at a lower portion of the tip 108 a. b is formed. In addition, a thread cutting blade 1 12 that can be combined with the cutting blade 1 08 b of the shuttle body 108 has a lifting shaft 1 1 3 as a fulcrum corresponding to the elevation of the needle 105. Go up and down.

Next, by the mechanism of the needle 105, the hook body 108 and the thread cutting blade 111 of the above-described configuration, The process of implanting the yarn 101 into the base fabric 100 will be described with reference to FIG.

 (1) The needle 105 is inserted from the top dead center into the base fabric 100 by the lifting device (not shown) of the needle 105, and reaches the lowest position. At this time, due to the rocking mechanism, the blade point 108 a of the L-shaped hook body 108 reaches the vicinity of the thread 101 (Fig. 12

 (A)).

 (2) Next, when the needle 105 starts to ascend, the thread 101 passing through the needle hole 105 a is loosened to form a thread loop. Then, by the swinging mechanism, the blade point 108a of the L-shaped hook body 108 is inserted into the thread loop of the thread 101 (FIG. 12 (B)).

 (3) Further, when the needle 105 rises, the same position is maintained. The length of the thread 101 between the base cloth 100 and the base cloth 100 is established by the sword point 108a of the L-shaped hook body 108. The needle (distance) is kept constant, and the needle 105 rises further to reach the top dead center on the base cloth 100. When the needle 105 reaches the top dead center, the thread cutting blade 111 rises, and the thread 101 is cut by the cutting blade 108 b formed on the shuttle 110. (Fig. 12 (C)).

 Thereafter, by repeating the above (1) to (3) while shifting the base fabric 100 by one pitch, the yarn 101 is planted on the base fabric 100, and a carpet or the like is created.

However, the operation of stopping, rocking, stopping and waiting for cutting by cutting the hook body 108 by making the rocking motion, repeating the operation of cutting the thread, rocking to the original state, and stopping is repeated. Therefore, if these series of operations are performed at a high speed, an impact is generated when the swing stops, and improvement in noise is desired. Disclosure of the invention

 The needle provided in the hair transplanter of the present invention passes the yarn through the needle hole and vertically penetrates the upper and lower surfaces of the base fabric. In addition, the hook shaft rotates in response to the vertical movement of the needle. Then, the thread is cut by the hook body forming the hook blade attached to the hook shaft and the lifting blade by rotation of the hook shaft, and the flocking is sequentially performed. Therefore, the hook body (hook blade) is implanted while cutting the yarn with the elevating blade while rotating, so that noise is reduced.

 The lifting blade used in the hair transplanter of the present invention is a mechanism that can be moved up and down by an eccentric force attached to the lifting hook shaft or an eccentric cam synchronized with the hook shaft installed outside the hook shaft. it can.

In addition, since the flocking machine of the present invention has the rotary blade attached to the shuttle shaft, it is possible to prevent the accumulation of lint and to perform high-speed sewing. BRIEF DESCRIPTION OF THE FIGURES

 Fig. 1 is an overall view of the flocking machine.

 FIG. 2 is a diagram showing the components of the lower part of the needle.

 FIG. 3 is a diagram showing the hair transplanting process.

 FIG. 4 is a diagram showing the hair transplanting process.

 FIG. 5 is a diagram showing the hair transplanting process. -Figure 6 shows the process of flocking.

 FIG. 7 is a diagram showing the hair transplanting process.

 FIG. 8 is a diagram showing the flocking process.

 FIG. 9 is a cross-sectional view in which hair is planted on a base cloth.

 FIG. 10 is a diagram showing the components of a flocking machine to which the blades are attached.

 FIG. 11 shows another lifting mechanism of the lifting blade.

FIG. 12 is a conceptual diagram of a conventional flocking machine. BEST MODE FOR CARRYING OUT THE INVENTION

 The present invention will be described in more detail.

 A flocking machine that creates a carpet or the like by flocking a base cloth will be described with reference to FIG. 1 showing the entirety and FIG. 2 showing the lower components of fl "51. The needle 51 has a built-in elevating mechanism through which the needle 51 passes through the front side 54 a and the back side 54 b of the base cloth 54, and the needle hole 51 a provided at the tip of the needle 51 has a needle. The thread 55 from the thread bobbin 52 is inserted.

 A hook rotating extension arm 60 is provided at the lower part of the flocking machine main body 50, and a hook shaft 6 that rotates in synchronization with the needle 51 elevating mechanism is provided in the hook rotating extension arm 60. It is. That is, in one cycle from the top dead center of the needle 51 (the front side of the flocked cloth 54) to the bottom dead center (the back side of the flocked cloth 54) to the top dead center (the front side of the flocked cloth 54). The hook shaft 6 which makes one rotation is provided.

 The semicircular hook body 1 is composed of an arm portion 7 extending from the center to the outer edge and a crescent-shaped hook arm 4 extending substantially half way from the arm portion 7. The hook arm 4 and the arm portion A guide groove 3 is formed between the groove 7. The hook 1 is connected to the hook shaft 6 at the center.

In addition, the point 2 of the spire-shaped shuttle arm 4 can be inserted into a thread loop formed by a thread 55c and a thread 55w, which will be described later. With the rotation of the shuttle 1, the shuttle 5 is guided to the shuttle blade 5, which is one of scissors for cutting the thread 55 formed inside the arm 7 near the shuttle arm 4. An eccentric cam 8 is attached to the shuttle shaft 6 in close contact with the arm portion 7. On the other hand, a plate-like elevating blade 10 that can swing is attached to the support shaft 10 j by a panel 11 so as to be always placed on the eccentric cam 8. The cutting blade 10a formed at the upper end of the lifting blade 10 is Make up the other scissors.

 Therefore, the hook 1 and the eccentric cam 8 rotate counterclockwise in synchronization with the vertical movement of the needle 51, the lifting blade 10 moves up and down by the eccentric cam 8, and the shuttle blade 5 and the lifting blade 1 It comes into sliding contact with 0 and becomes scissors and cuts the thread. Next, with reference to FIGS. 3 to 8, a description will be given of a process of successively implanting the base cloth 54 with the elevation of the needle 51.

 The vertical position of the needle 51 is defined by the function of sin S according to the rotation angle of the hook 1, and the position of the needle 51 and the position of the blade point 2 of the hook 1 are accurately reproduced. Needle 51 is one cycle from top dead center (front side 54 a) to bottom dead center (back side 54 b) to top dead center (front side 54 a). The needle 51 rotates and penetrates the front side 54a and the back side 54b of the base cloth 54, and the thread 55 is cut by the hook blade 5 and the lifting blade 10 of the hook body. The hairs are implanted at pitch (P) in sequence to 5 and 4. '

 (1) Fig. 3 shows the needle 51 with the thread 55 passing through the needle hole 51a on the front side 54a of the base cloth 54, showing a state of descending from top dead center. 1a is just before piercing base cloth 54.

 In addition, the thread 55 passing through the needle hole 51a is connected to the stock bobbin 52, and while the gold + 51 descends, there is no slippage of the thread 55 restrained by the hole 51a. The needle 51 and the thread 55 descend as one. In addition, the looseness of the thread 55a is equivalent to the length of one thread to be implanted, and the length of one strand to be implanted from the stock bobbin 52 is pulled as the needle 51 is lowered.

(2) FIG. 4 shows a state in which the needle 51 further descends, and the needle 51 penetrates the base fabric 54 to become the back side 54b, and reaches the bottom dead center. The threads 55c and 55w inserted through the needle hole 51a are in tension due to the friction of the base cloth 54, and are tightly closed to the needle 51. Wearing state.

 (3) Fig. 5 shows that the needle 51 turns slightly upward from the bottom dead center, the threads 55c and 55w at the needle tip are loosened, and a thread loop that spreads on both sides of the needle hole 51a is created. With the rotation of the hook shaft 6, the hook 2 of the hook body is inserted into the thread loop and hooked on the hook arm 4.

 Even if the needle 51 rises, the thread loop of the thread 55 is hung on the shuttle arm 4, so that the thread loop does not come off to the surface side of the base cloth 54.

 (4) In Fig. 6, the hook 1 is half-turned from the state shown in Fig. 3, the needle 51 is moving up through the base cloth 54, and the threads 55c and 55w are The needle 55 is held, and while the yarn loop formed by the yarns 55 c and 55 w is linear, the needle 55 reaches the surface side of the base cloth 54 as the needle 51 rises.

 (5) Fig. 7 shows the needle 51 rising further and before the top dead center.The thread wheel slides toward the hook blade 5 while being held by the hook arm 4, and the needle 5 1 becomes the thread 5 5 d rises while sliding and pulling through the needle hole 51a, and the thread 55d is in a tension state.

 The lifting blade 10 is raised by the eccentric cam 8 attached to the hook shaft 6, and the lifting blade 10 and the hook blade 5 of the hook 1 are on the verge of cutting the thread 55.

 (6) Fig. 8 shows that the needle 51 reaches the top dead center, the hook blade 5 and the lifting blade 10 come into sliding contact with each other at the highest position, become scissors, and become the thread 55 c and the thread 55 w. Separation and cutting completes one process. Then, the base cloth 54 is moved by one pitch (P) to prepare for the next flocking.

The time when the base cloth 54 is moved by one pitch (P) is when the needle 51 is present on the surface side of the base cloth 54. FIG. 9A shows that one thread 55 is sequentially subjected to the above-mentioned steps (1) to (6). The flocking yarns planted on the base cloth 54 when the fibers are planted are shown. Each flocking yarn is separated into 55 g and 55 h, and is planted. Further, FIG. 9 (B) shows a state in which one thread is implanted, and shows an implanted state in which two threads are separated on the back side of the base cloth 54. In the above description, an example has been described in which one thread 55 is inserted into the needle hole 51a. However, a plurality of threads may be inserted into the needle hole 51a for planting. For example, when three yarns are inserted into the needle hole 51a and the above-mentioned steps (1) to (6) are performed, as shown in FIG. 9 (C), three yarns are separated into three yarns. Condition, ie, 6 flocks can be planted at a time. As described above, in the flocking machine of the present invention, since the shuttle body 1 rotates and the thread is cut by the shuttle blade 5 and the lifting blade 10, the smooth movement differs from the conventional swing motion of the shuttle body. It becomes possible to plant hair in a quiet state.

 The lifting blade 10 is constituted by an eccentric cam 8 which is a simple mechanism for lifting and lowering the force S. As in the conventional case, the lifting blade 10 is used for swinging operation and cuts the thread with the shuttle blade 5. I'm sorry. Further, FIG. 10 shows a lower component of the needle 51 of another configuration. A component different from the component of the hair transplanter shown in FIG. 2 is a rotary wing body 40. The hook 1A is a disk having a crescent-shaped hook arm 4 and a hook blade 5, and has a different shape from the hook 1, but performs the same function.

 The rotary blade 40 is attached to the shuttle shaft 6 at the back of the elevating blade 10, and the rotary blade 40 has a blade 41 attached thereto, and rotates with the rotation of the shuttle shaft 6. The wind is sent forward (toward the lifting blade 10 side) to prevent the adhesion and accumulation of lint, and to cool the scissors part composed of the lifting blade 10 and the shuttle blade 5.

This dust is generated when the thread 55 passes through the small needle hole 51a. This is caused by friction, and the yarn passing through the small needle hole is peeled off by the fine fibers and scattered around, and this yarn waste is wound around the hook 1 and becomes inoperable if left unattended.

 Also, the cutting of the yarn by the hook 5 and the lifting blade 10 slides each other to cut the yarn. Burn.

 As described above, by attaching the rotary blade body 40 to the shuttle shaft 6, it is possible to prevent the accumulation of lint and prevent the burning of the shuttle blade 5 and the elevating blade 10 and enable continuous high-speed long-time operation.

 The rotary wing body 40 may be attached to the shuttle shaft 6 that swings and rotates in addition to the shuttle shaft 6 that rotates in one direction, and is applicable to various sewing machines in addition to the flocking machine. Needless to say, For example, the thread 55 is passed through the needle hole 51a, and the base cloth 54 is sewn with the needle 51 and the lower thread (not shown) penetrating the upper and lower surfaces of the base cloth 54, that is, the thread In a flocking machine that does not cut 5 5, by attaching the rotary wing body 40 to the shuttle shaft 6 that rotates in one direction or swinging, it is possible to remove lint accumulated by the wind, so that high-speed sewing can be performed. . Next, FIG. 1I is a front view showing another elevating mechanism of the elevating blade 10A, and has a configuration in which the position of the eccentric cam 8 shown in FIG. 2 is different.

A camshaft 30 is installed outside the shuttle 1A, and the camshaft 30 and the shuttle 6 are synchronized by transmitting equi-rotation with a gear wheel. An eccentric cam 31 is attached to the camshaft 30, and the elevating blade 10A is moved up and down via the eccentric force 31. That is, the eccentric cam 31 is provided outside the shuttle shaft 6. The elevating blade 10A is supported substantially at the center by a pivot shaft 33, and a U-shaped clamping portion 10b formed at the rear end is slidably fitted to the eccentric cam 31. It is. Therefore, while the hook body 1 A rotates on the hook shaft 6, the lifting blade 10 A moves up and down (oscillates) on the cam shaft 30 by the eccentric force 31, and the hook blade 5 and the cutting blade 10 a Cut thread 5 5 with.

 As described above, the lifting blade 10 A is configured such that the eccentric cam 8 is attached to the hook shaft 6 shown in FIG. 2 and also the eccentric cam 31 attached to the cam shaft 30 installed outside the hook body 1 A. It may be configured so that it can be raised and lowered (swingable).

Claims

The scope of the claims 1. A needle that penetrates the needle through the needle hole,  A hook shaft that rotates according to the vertical movement of the needle,  A hook body forming a hook blade attached to this hook shaft,  An elevating blade that cuts the yarn with the hook blade by rotation of the hook shaft,  A flocking machine equipped with.  2. The flocking machine according to claim 1, wherein the lifting blade is moved up and down by an eccentric cam attached to the shuttle shaft or an eccentric cam installed outside the shuttle shaft and synchronized with the shuttle shaft.  3. Pass the thread through the needle hole, implant the hair into the base cloth with the needles  A flocking machine that attaches a rotary wing body to a hook shaft that rotates or swings in one direction.