JPH0779605B2 - Automatic bobbin winding machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic bobbin winder for winding a thread on meat in order to shape the shape of the meat when producing meat products such as ham.

(Prior Art and its Problems) As an automatic bobbin winding machine for meat, a device described in Japanese Patent Publication No. 61-81749 is known. This is to wrap the meat in the cylinder with the meat attached to the suspension mechanism, and gradually raise the meat by the suspension mechanism to wind the thread near the upper opening of the cylinder. However, the meat had to be attached to the suspension mechanism by hand every time, which had the disadvantage of poor workability.

An object of the present invention is to provide an automatic meat bobbin winding machine that requires almost no manual steps for an operator to handle meat.

(Means for Solving Problems) In the present invention, the meat is placed on the movable skewer, the movable skewer is moved while the movable skewer and the meat are wound together with a thread, and then the movable skewer is pulled out from the meat. The above-mentioned problem was solved by eliminating the need for manual installation of.

(Embodiment) FIG. 1 is an end view of a meat placing portion of an embodiment according to the present invention, in which reference numeral 10 indicates a support frame, on which movable skewers 11, 12, 13 are slidably supported. Has been done. The movable skewer is fixed to the sliding bracket 15 as shown in FIG. In FIG. 2, only one moving skewer 12 is shown, and other moving skewers are omitted for convenience of illustration. Sliding bracket
15 is supported so as to slide on the guide rod 16. A discharge cylinder 17 is fixed to the sliding bracket 15,
A moving cylinder 18 is fixed to the support frame 10, and a piston rod 23 connects these pistons 21 and 22. In the state shown in FIG. 2, the moving cylinder is in the 18-extended state and the discharge cylinder 17 is in the contracted state. Therefore, when the discharge cylinder 17 extends, the sliding bracket 15 moves further to the right as viewed in FIG.

A rotation arm 24 for thread feeding is provided in front of the support frame 10 (left side in FIG. 2), and the locus of the thread feeding port 25 of this arm is shown by A in FIGS. 1 and 2. .

An end pushing cylinder 26 is further fixed to the sliding bracket 15, and an end pushing plate is attached to its piston rod 27.
28 is fixed.

A yarn pressing device 31 is provided as a means for fixing the winding start of the yarn 30 (FIGS. 1 and 4). This is a clamp member 33 that has a claw portion 32 that sandwiches the thread 30 between the frame 10 and can swing around a pin 39, and a spring 34 that constantly urges the clamp member 33 so that the claw portion is pulled toward the frame. It is composed of a cylinder 35 for moving the claw portion 32 forward and backward.

At the start of the operation of the bobbin winder, the winding start tip of the bobbin is fixed by the yarn pressing device 31, and the rotary arm 24 is rotated to the upper left position in FIG. At this time, the winding start guide 36 projects forward from the frame 10 so that the yarn does not interfere with the operation of placing the meat 37 on the movable skewer. The winding start guide is connected to a cylinder (not shown),
When the rotary arm starts the bobbin winding operation, it retracts so as not to interfere with the thread.

The meat 37 is placed by the operator on the moving skewers 11, 12, 13 with the thread 30 and the rotating arm 24 in the position shown in FIG. In this state, the operator starts a winding switch (not shown)
The rotation arm starts to rotate by inserting.

An auxiliary skewer 39 is provided on the left side of the meat 37 in FIG. Since this is not supported by the frame 10, the degree of elastic deformation is higher than that of the other skewers 11, 12, and 13. When the yarn starts to wind, the force from the yarn to the right in FIG. Although it is deformed to the extent that it comes into contact with 37, it has rigidity enough to prevent the meat 37 from being blown to the right by the force from this thread. In this example, the auxiliary skewer 38 is supported by the sliding bracket 15 similarly to the other movable skewers 11, 12, and 13, but is moved to a fluid cylinder (not shown) so that the yarn is first fleshed.
The 37 may be retracted independently so that it does not interfere with the thread when it is wound to the extent that it does not jump out of the movable skewer. The material of the auxiliary skewer 38 can be made to have a higher elastic deformability than the material of the other movable skewers.

In this way, by winding the thread 30 a few times with the meat 37 still, the winding start tip of the thread is fixed as seen at the left end of FIG. At this time, air is supplied to the cylinder 35 on the contracting side to firmly fix the thread, but when the first two to three windings are completed, the cylinder 35
Is exhausted and the thread is pressed only by the force of the spring 34. Therefore, when the meat is moved by the contraction of the cylinder 18 thereafter, the thread is pulled and gradually comes out from the nail.

After the thread 30 is fixed to the meat, the working fluid is switched to the moving cylinder 18, and the moving cylinder moves the rod 23 to the left as seen in FIG. 2 and thus moves the moving skewers 11, 12, 13 forward. Let This causes the thread to be wound in a spiral. In this embodiment, the fluid directly supplied to the cylinder 18 is hydraulic oil, which is in the form of a so-called air-hydro cylinder that converts the pressure of the hydraulic oil from air pressure. ing. The working fluid to the other cylinders is all air.

Before the advance of the moving skewer or after a lapse of an appropriate time after the start, the air is switched to the end pushing cylinder 26, the end pushing plate 28 is moved forward, and contacts the rear end of the meat 37. The purpose of the end push plate 28 is to be able to always represent the position of its rear end with respect to the meat with varying lengths, so that the air pressure supplied to the cylinder 26 is such that the end push plate is at the end of the meat. It moves forward reliably, but after contact with it, the entire meat is not displaced with respect to the moving skewer. The end push plate 28 has a sensed element 41 which is sensed by it when it has moved to the position of the sense element 42 which is stationary relative to the frame 10. When the detected element 41 is detected by the detection element 42, the forward movement of the movable skewer is stopped, and the rotation arm is further rotated while keeping the state as it is, whereby the winding end portion 40 (FIG. 3) is formed.

When the last turn is made by the rotating arm 24, air is supplied to the extension side of the cylinder 35 to fix the rear end of the thread 30 to the frame 10, and the pawl portion 32 is once separated from the frame 10 and in between. The yarn is taken in and then air is supplied to the contracting side of the cylinder 35 to clamp the yarn with the frame. A cutting device 43 is provided on the upstream side of the yarn pressing device and has the same configuration as the yarn pressing device except that it has a blade on the support frame and no spring.
At the same time that the claw portion 32 moves forward, the arm 45 is moved by the cylinder 44.
Is swung forward so as to take in the thread between the arm 10 and the frame 10, and then the arm 45 is swung back to the original position slightly behind the fixing of the thread by the claw portion 32. At this time, the arm 45 is fixed to the frame. The blade 47 cuts.

A trailing end fixing device 51 is provided to insert and fix the trailing end of the yarn 30 at the winding end portion 40 into the preceding winding portion. It comprises a thread guide 52 and a thread feed 53. Thread guide 52
Is a guide member 54 having a forked top for receiving the moving skewer 13.
And a cylinder 56 that swings it around a pin 55. The cylinder 56 swings the guide member 54 counterclockwise when the winding end portion 40 starts to be formed (when the meat is in a stationary state), whereby the yarn moves forward along the guide member at the moving skewer 13 portion. Since it is displaced, it is displaced before the rest of the thread. The guide member is returned to the original position by the cylinder 56 before the last winding of the yarn reaches the yarn guide 52.

The thread feed 53 is slidably supported by a bell crank 58 that is swung by a cylinder 57, a thread feed guide 59 that moves up and down by the swing of the bell crank, and a hole 61 formed in the thread feed guide. And a thread feed rod 63 provided so as to reciprocate back and forth by the cylinder 62. When the last turn is made, the thread 30
When it is displaced forward along the slope 64 formed on 59 and crosses the slope, it returns to the rear and comes to a position above the shoulder 65. Next, when the cylinder 57 is operated and the yarn feeding guide 59 is raised, the shoulder portion 65 is raised to a position in contact with the yarn (shown by a broken line in FIG. 7) and further raised to push the yarn above the bottom surface of the meat 37. . Since the portion of the winding end portion 40 preceding the last winding is displaced forward by the yarn guide 52 in the vicinity of the yarn feed 53, only the portion of the last winding is on the shoulder portion 65. It is certain that

After the thread feed guide 59 has been raised, the thread feed rod 63 is advanced by the cylinder 62 so that the thread on the shoulder portion 65 is threaded under the preceding thread. To ensure this action, the tip of the yarn feed rod is bifurcated vertically.

When the processing of the winding end portion 40 is completed, the cylinders 17 and 18 are extended, and the sliding bracket 15 is further moved to the right by the extension of the cylinder 17 from the position shown in FIG.
13 does not protrude from the frame 10. This time meat 37
Is prevented from moving backwards by the edge of the frame 10, so that the moving skewers fall out of the meat and the meat is collected there or conveyed by a suitable carrier.

Then, the cylinders 17 and 26 are contracted so that the machine is in the state shown in FIG. 2, and the operation described above is repeated. The contraction of the cylinder 26 can be performed at any time after the rear end of the meat is detected.

FIG. 8 shows a mechanism for supplying the thread 30 to the rotary arm 24. The thread passes from the thread ball 66, which is the supply source, through the tension applying device 69 to the through hole of the rotary shaft 68 of the drive device 67. Then, it is inserted into the thread delivery port 25 of the rotary arm 24. Tensioning device
69 is a tightening member 72 for sandwiching a thread between the main body 71 and the main body.
And a spring for urging the tightening member toward the tightening position
It consists of 73, which gives the thread moderate tension. A screw rod 74 is coupled to the spring 73.By passing this through a bracket 75 provided on the main body 71 and fixing it with nuts 76 on both sides thereof, the screw rod can be fixed at a variable position. The tension exerted on the thread can be adjusted by changing the force exerted by the spring.

FIG. 9 shows another embodiment of the present invention, which is the same as the first embodiment except that a yarn guide 77 is provided adjacent to the movable skewer 11. As shown in FIG. 10, this yarn guide 77 shortens the unconstrained portion of the yarn tip at the beginning of winding, and makes the appearance desirable.

(Effects of the Invention) As is apparent from the above-described configuration, in the present invention, the operator only needs to manually put the meat on the movable skewer, which is very efficient. It can be anything.

Further, the present invention is provided with a detection device for detecting the position of the rear end of the meat, and detects that the rear end of the meat has reached a predetermined position by the detection device, thereby stopping the forward movement of the movable skewer. Since the rear end of the thread is fixed, even if the length of the meat varies, the rear end of the meat can be accurately detected and the thread can be appropriately wound up to the rear end of the meat. Play. Therefore, even when processing a large number of meats having non-uniform lengths, the operator does not have to worry about such variations and does not care about the rear-end processing of the meats, and the operator can select them arbitrarily. It is possible to sequentially wind the thread around the meat, and the thread winding work can be made very efficient.

[Brief description of drawings]

1 is an end view of a meat placing portion in one embodiment of the present invention; FIG. 2 is a side view of main components of the embodiment of FIG. 1;
Fig. 3 is a side view of the wound meat; Fig. 4 is a side view of the yarn pressing device; Fig. 5 is a side view of the cutting device; Fig. 6 is a side view of the yarn guide; FIG. 8 is a side view of a feeding mechanism; FIG. 8 is a side view of a mechanism for supplying a yarn to a rotating arm; FIG. 9 is a partial view of another embodiment of the present invention; FIG. 10 …… Support frame, 11,12,13 …… Movable skewer, 18,21 …… Drive device, 24 …… Rotary arm, 25 …… Thread feeding port, 28 …… End pushing plate, 31 …… Yarn holding device , 38 ... auxiliary skewer, 40 ... winding end, 41 ... detected element, 42 ... detection element, 43 ... cutting device, 51 ... rear end fixing device, 54 ... guide member 59 ... thread Feed guide, 63 …… Thread feed rod, 72 …… Tightening member, 77 …… Thread guide

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takayuki Murakami 635 Nakamuhara, Tsuchiura City, Ibaraki Prefecture Central Research Institute of Primaham Co., Ltd. (72) Inventor Jun Mimatsu 635 Nakamuhara, Tsuchiura City, Ibaraki Prefecture Central Research Institute of Primaham Co., Ltd. (56) References Japanese Patent Laid-Open No. 63-71141 (JP, A) Actually developed 55-27089 (JP, U)

Claims (6)

[Claims] 1. A plurality of movable skewers that are movably provided with respect to a support frame and that are arranged substantially parallel to each other so as to form a support surface on which meat can be placed, and a yarn delivery port having the yarn delivery port. Between the rotary arm that rotates so as to draw a locus surrounding the movable skewer, a tension applying device that applies resistance to the yarn between the yarn delivery port and the yarn supply source, and the tip of the yarn between the support frame. A yarn pressing device that is fixed and releases the rotating arm after a predetermined number of rotations, a cutting device that cuts the yarn at the end of winding the yarn, and a winding portion and a meat that precede the cut rear end of the yarn. A rear end fixing device inserted between them, a detection device for detecting the position of the rear end of the meat, and a movable skewer along its axis, and after the rotary arm has rotated a predetermined number of times from the start of winding the yarn, the forward movement is started and The detector puts the rear end of the meat in place An automatic bobbin winding device for moving meat, the driving device moving the movable skewer so as to stop the forward movement after it is detected and to retract the rear end of the yarn until it is separated from the yarn wound on the meat after being fixed. Machine. 2. The machine according to claim 1, wherein an auxiliary skewer not supported by the supporting frame is provided at a side portion of the meat placed on the movable skewer. Automatic spooler for meat. 3. The machine according to claim 1, wherein the tension applying device includes a main body, a tightening member that holds a thread between the main body, and a biasing member that directs the member toward the main body. Automatic bobbin winding machine comprising a spring for rotating and a device for adjusting the acting force of the spring. 4. The machine according to claim 1, wherein the detection device is provided on the fluid cylinder, an end push plate biased forward by the cylinder, and the push plate. The detection element and a detection element provided in a stationary state with respect to the support frame. The fluid pressure supplied to the cylinder causes the meat placed on the movable skewer to be moved by the end pushing plate. An automatic bobbin winder for meat that is unprecedented. 5. The machine according to claim 1, wherein the trailing end fixing device displaces a winding portion preceding the last one winding portion at the winding end portion of the yarn forward. An automatic yarn winding machine for meat, comprising: a yarn feeding guide that pushes a part of the last wound yarn toward the meat; and a yarn feeding rod that inserts a part of the yarn between the preceding yarn and the meat. 6. A machine according to claim 1, wherein a winding start portion of the yarn from the support frame is located at a position downstream of the yarn pressing device in a rotation direction of the rotary arm. An automatic meat bobbin winding machine with a thread guide that keeps away.