TW394738B - The band supply device of a packing machine - Google Patents

Abstract

This invention aims to provide band supply device of a packing machine, which can select the band and draw back the band tied around the article. It is a simple setup that tautly pulls the band without adding stress to the band. The band is clasped in between a driving and an opposite drum. The two drums are rotated clockwise to place the band on the packing position. By counterclockwise rotating the two drums to the setup, packing band is drawn back. The driving drum remains on the swing arm. When the band is sent forward, the swing arm subjects a forward swinging force by compressing the opposite drum with the driving drum. The rotation center circumference of the driving drum is located at a farther back position and connects swing arm's center and opposite drum's center.

Description

V. Description of the invention (1) [Application fields in the industry] The present invention relates to a type of baler. The second aspect is that the bale is pulled back to the baler after being packed. Tighter, * π 'will surround [known technique] ° In general, the use of resin cable ties ^ No, between the table 30 where the packaged object w is placed, U U and the follower roller 32 Clamp Zha 2 § Put the driving roller 31 turns again, so that the purple belt T passes through the knotting section = and is sent to the platform by 3. \ The two rollers 3V32 machine ceremony, ϋ 交 甘? 丨, m m disturbance on 30, And with an appropriate guide mechanism 'guide it around the packaged object 2 = part A' on the slide 33 and the i-th chuck that rises. Eight, and guide to the knot to make the two rollers η, 32 reverse the pull 7. Squeeze it, and then, the plant between the clamps is positioned on the transmission end side ?: Standing in the second: the first lower position with the 1 liter of the second roundworm, such as \ between the two chucks 34, 35 Lifting of the upper force head 37: heating: the in and out of the pressure plate 36 to heat it,-Figure L: i: send the component to make the slider 33 withdraw. Prepare for Λ π is not below the tie part A The slider 33 I, the L chuck 34, and the pressure head 37 are raised and lowered, and the advance and retreat of the heating plate 36 is performed according to a predetermined sequence. For the packaged material W, block: great packing, but for example, when bundling most items consisting of plate due to t μ ρ material and wire 4, in order to prevent the packing caused by loosening at Μ, it must be bundled. Let it move: the driving roller 31 is moved at the stage of: report on page 4 of the 5 'invention (2) when the tightly tightened state is pulled back to the cable tie, the two ends are welded, and the tension of the continuous reversed pull-back tension is cut In the last stage of the cam and follower belt, the sub-structure is displaceable. On the side of the wheel 31, there is an additional final stage in addition to the tie bar. The invention is to solve it, so it is best to The two rollers 31 and 32 tighten the strong f in the opposite direction. In this tightened state, it is more ideal to break the cable tie H, which lies in the two rollers 31 and 32. In the process, the cable tie T is added. A certain degree of slippage will occur between the belt T and the driving roller 31 to some extent, and it cannot be fully tightened. : T is used to support the above-mentioned follower roller 32. / / The above-mentioned camshaft has a clamping cam, which is connected via the linking mechanism id, and there is a clamping machine on the return f or a The two rollers 31 and 32 have the tension of the clamping mechanism. The tensioning device is used to tighten the tensioning device: it is in the pull mouth and the belt]] However, the former use of clamping will be increased as the cable tie is tightened. ^ In the device, there will be adverse effects on the camshaft, and various actions, 2 loads, and other actions that cause the cable tie knot to become a cause of failure will cause instability, =; mechanism '* parts Significant increase;: == Tight use of cams and make up problems that would have been high. The structure of the device is also complicated. In addition to the following: In the arm device, in addition to the following: $ 's: j uses Zhang Duzhi's drive mechanism with a clamping mechanism, so the unit cost of manipulating its action is also higher than ^ lip High problem. The configuration of the eight-x set will be more complicated. The present invention is made in view of the above problems. The purpose is to provide a strapping device. 5. The strap supply device of the description of the invention (3). 'It makes it possible to select a cable tie and pull the cable tie around the packaged material back to the tightened cable tie supply device, which is constituted by a very simple device, which can be strongly tightened in the final stage of pulling back the cable tie , And there will be no adverse effects on the tie part of the cable tie. -[Solutions of Invention] In order to achieve the above-mentioned purpose, when the 1-belt supply device of the baler of item 1 of the scope of patent application for the present invention is represented by a symbol attached on the drawing, it is the bundle of T strapper T baler In W's packer, the strapping band τ is sandwiched between a pair of rollers 1, 2 and the two straps i and 2 are turned forward to send the straps to the packing position and surround the packaged object. The latter cable tie τ is composed of the two rollers 2 being reversed and pulled back to tighten it. The above pair of rollers 3 and the driving rollers of the forward and reverse rotation and the frame 4 are considered to be in an idling state, ... The corresponding ten of the purple belt with a bag τ === Two rounds and two walks of KI with the rotating coffee drive. When the sending direction is forward, the swing arm 5 is in a state where the roller 2 is rotating, and Q $ 7 is more than the swing center 1 of the swing arm 5: > the second line △ is further rearward than the device 6. Next, the power of energizing the forward swing " the roller 1 is pressed against the opposite 6 of the opposite roller 2 is as the above-mentioned practice becomes normal: 2: The swing arm 5 of the driving roller 1 is energized and installed by The applied force is a force swinging forward, so the cable tie T is sandwiched between the driving roller and the opposite roller with a stack of force.

Page 6 V. Description of the invention (4) On the one hand, the forward rotation of the drive roller 1 can be sent to the front while the reverse rotation of the drive roller 1 can be pulled back on the other. Therefore, when the purple belt 7 is pulled back after being wrapped around the package W, the stage where the cable tie T is not yet tensioned, that is, the excess portion of the cable tie τ that is sent around the package W is being pulled. During the return period, the cable tie T is smoothly pulled back to the rear along with the rotation component of the driving roller 1. Therefore, the driving roller 1 and the opposing roller 2 are expected to remain unchanged, and the swing arm 5 will be maintained at Roughly the same as when not pulling back. 0 J 疋 Μ 疋 After all the extra parts of the mysterious coin are pulled back, 2 It is difficult to move it back to the state where it is tightly wrapped around the ties τ The driving wheel 1 in contact with T wants to transfer the belt, and the frictional resistance between the driving rollers 1 makes the driving rollers 1 to be square. / Said the square rolling form, thereby causing the swing arm 5 to be located Orientation toward the roller μ + This displacement becomes the rotation center of the driving roller 1 and the count ^ Λ / τ Γ ^ ^ ^ ^ ^ < of the driving roller center :: loss of force 'The cable tie τ 不It will produce a sliding effect, and the tightening will make the ^ belt τί = the tightening of the force. This is the so-called fiscal power will be greater, the tension of the belt is stronger, and the two rollers 1, 2 are pressed tightly, so, For example, appropriate control of the machine can be controlled unlimitedly until the pavilion stops rotating. The driving roller 1 is stopped to set its tightening degree according to the driving torque, etc.] r can be within the range where the cable tie τ does not break. In the Zide Department, after the front end of the cable tie A5 is tightened, the cable tie σ is welded to the supply side to cut off the supply end.

5. Description of the invention (5) Side i ends the packing operation. Also at this end of the operation phase, although the cable tie T is firmly clamped between the two rollers 丨 and 2 of the cloth, the next time it is packed, the drive roller i is rotated forward to send out the cable tie τ. Then, in its initial stage, the drive roller 1 is opposite to the above-mentioned pull-back, and it will be in the form of rolling backward on the roller 1, thereby the swing arm 5 will automatically swing back and displace and return to the original posture. , The driving roller i and the opposing roller 2 will immediately return to the original pressing state based on the force applied by the energizing device 6, so the belt T will be gently and smoothly sent to the front by the rotation of the driving roller 1. 0 The second invention of the patent application scope is the cable tie supply device of the baler of the patent application scope item J. The above-mentioned swing arm 5 is supported by the above-mentioned rotary drive device via bearings 8a, 8a '. The driving shaft 7 is driven, and on the floating end side of the swing arm 5, a support shaft 10 supporting the driving roller 丨 is supported by a bearing rib through the bearing rib; and a rotation driving force is provided from the driving shaft. Transmission to the support shaft 10 of the above-mentioned driving roller 1 0

That is, the driving roller 1 is held on the swing arm 5. Therefore, if the a-bearing shaft 10 itself is configured as a secondary drive shaft, a swing driving device 3 ′ such as a motor needs to be mounted on the swing arm 5. 5 will be added with a heavy negative, which is not appropriate. Also, such as from the position, shaft away from the swing center p, a gear mechanism or a chain mechanism to transmit the rotational driving force of the supporting shaft 10 of the driving wheel 1 due to the movement of the cable tie, the swing range, that is, driving The amount of displacement of roller 1 is small because of two reasons. The association will cross gears due to the displacement of driving roller 1.

Page 8 V. Description of the invention (6) If there is a change in the 2 degree or chain tightness, there will be some disadvantages on the rotary drive. In contrast, in the scope of patent application; f: in stability, on the swing center p of the swing arm 5 holding the driving shaft 丨 = structure = oscillating = distance from the driving roller U support shaft 10 ^^ 保 局 疋Therefore, it is possible to use gear mechanism or chain mechanism, etc., which can constantly maintain a stable rotational driving force. The invention of the third item of the patent application scope of the transmission device is the cable tie supply of the baler of the above-mentioned patent application. In the device, it is a limiter η which can limit the limit of the upper two forward movements, so that the rotation of the driving roller! = To the swing center P connecting the swing arm 5 and the rotation m of the opposite roller 2 are more forward. . That is, if υ of the driving roller 1 can be moved to the front of the above straight line, the clamping force of the two rollers J and 2 to the purple belt τ during the 'tightening phase' when the cable tie T is pulled back as described above is The period of time until the rotation center G of the driving roller 1 reaches the above-mentioned straight line L will be increased by the above-mentioned toggle effect, but it will be lost when the rotation center 0 crosses the straight line L and moves forward. Strong tightening. However, when the structure of the item in the patent scope is requested, drive the roller! The center of rotation of 0 does not move to the front of the straight line [, so there is no need to worry about the loss of clamping force. [Embodiment] An embodiment of the present invention will be specifically described below with reference to the drawings. Fig. 1 is a front view of the example with a supply device, and Fig. 2 is a longitudinal section of the device! :: Shield picture is the rear view of the device, and Fig. 4 is an important part of the device. Explain. This supply device is, for example, arranged next to the cable tie knot A in the baler shown in Figure 5 (5) of the description of the invention, that is, instead of the drive roller 31 and the follower roller 32 provided in the figure, section. In the following description, the definition of "front and rear" refers to the case where the delivery direction of the straps T is forward and the pull-back direction is rear. In FIGS. 1 to 3, 4 is a frame, and a flat portion of left and right side walls 4b constitutes a space portion 40 (a side view is shown in FIG. 2). On the outside of the left side wall ^, two guide members 12a, 12b for guiding the strapping band T made of a thermosynthetic synthetic resin to incline forward and uphill are provided, and the two guide members 12a, 1 Positions 2b away from each other are equipped with a lower driving roller 1 and an upper opposing roller 2 to clamp the cable tie 1 «from above and below. — The Z surface is provided with a reversible motor 3 on the outside of the right arm 4b. Also, the two rollers in the several racks are located! , 2 on the left and right side walls 牦, immortal μ: drive = 7 to bearing 8. ,8. Free rotation in the horizontal direction is maintained ^ As shown in FIG. 2, the above-mentioned drive shaft 7 is provided with bearings 8 & 8a through the inner piece disposed in the space portion 40 of the frame 4 and The right side and outer side sheet 51) made with the 5 machine can swing freely f ', and at its right end, via bearings 8d, 8d, ^ 2: turn freely the pulley 7a' and 'A torque clutch 13 is installed between the pulley 7 & and the swing arm. The transmission belt 3b is hung between the pulleys 鱼 and the pulley ，, and the horse is reversed and reversible at 7: 'The rotational load of the drive shaft 7 is less than the torque off = ... The rotation 'and when the rotation load is greater than the set d

Page 10

V. Description of the invention (8): The slip of the torque clutch u is constituted only by the pulley 3a that continues to rotate. The driving roller 1 is composed of an elastic layer la whose inner peripheral surface is a slab rubber or the like bonded to the support shaft 10 and integrated. And the drive rollers and wheels; #Support shaft 10 is rotatable through bearings 8a, 8b, and is held by the floating ends of the inner and outer side pieces 5a of the swing arm 5, and is passed through the frame: The two side walls 4a, 4b are elongated holes 413, 41b that extend approximately in the front-rear direction. In addition, the support shaft 10 of the driving shaft 7 and the driving roller i respectively has a gear core and a cymbal arranged in the space portion 40 of the frame 4, and the driving wheels can be driven by the engagement of the two gears 9a and 9b! As the drive shaft 7 is driven to rotate, the linkage rotation opposite to the rotation direction of the drive shaft 7 is performed. On the one hand, the roller 2 is freely held by a support shaft 20 on the left side wall 4a of the frame 4 through screws, via bearings 8e, 8e, freely rotating. As shown in Figures 2 and 3, the floating ends of the outer piece 5b of the swing arm 5 and the upper part of the outer side of the right side wall 4b of the swing arm 5 are respectively fixed with bolt-type tie pins 6a and 6b, The spiral spring arm 5 between the pins 6a, 6a is often subjected to a force 4 swung in the forward direction. Also, a lower limiter pin 6b outside the frame wall 4b is provided with a protruding limiter seat, and a bolt-type limiter pin U is screwed therein so as to contact the outer piece 5b of the pendulum, and The limit of forward swing of the swing arm 5 is defined.

As shown in Figs. 1 and 4, the swing arm 5 receives the spiral spring force and swings forward in a natural state, and drives the rotation of the roller 丨. The cloth ratio connects the swing center P of the arm 5 and the counting roller. The straight line L during the rotation of 2 is further rearward, and in this configuration, the pull Q of the coil spring 6

Page 11

Page 12 V. Description of the invention (10) It is slid to the rear, so the driving roller and the holding state have not changed. The swing arm 5 is in the same position as the pressure in the natural state shown in Figure 4. Yes, no, it will remain after all the other parts have been pulled back. It will be two pounds to send out two more straps T of the purple belt T, which will be difficult to retreat to the rear. To continue to rotate, the purple driving roller 1 will become the frictional resistance between the needle and the square on the cable tie. With the automatic rolling mode, the swing arm 5 will move forward deeply: and As shown by the dotted line in FIG. 4, in the direction of the arrow, the displacement of the Hi arm I of the wheel 2 is increased, and the rotation center 0 of the driving roller 1 and the opposite roller D are shortened. The shortened amount will have an effect on i. In the state of two or two ices, on the side of driving roller 1 ', the so-called elbow purple belt T does not slip Λ produces a large inflammatory force on fft. After that, when driving the rotation of roller 1 in Le Λ, Λ , Strongly tightened. However, when the rotational load, fy, and the rotational load of the driving roller 1, that is, the drive shaft 7 13 will open the set torque of the torque clutch 13, the torque will be disengaged from the tension Ϊ, so the pull-back of the cable tie T will be Stop and keep it tight. At the junction A, the ceremonies and belts T are welded at the cable tie while maintaining a certain degree of tightness, and / or the ends of the belts T and the conveying end are exited by the heating plate 36 and the pressure head 37, and the motor 3. * The sending end side is also cut by the scissors 38, and the slide 33 is retracted, the cable tie TB is stopped, and the packing operation is ended. Also, at this end stage, in the next state that the spoon is tightly clamped between the two rollers 1 and 2, but on the occasion of the dagger, when the driving roller 1 sends out the cable tie T and rotates forward,

In the initial stage, the form of upward and backward rolling opposite to the pull-back situation described above, the swing arm 5 I @moving roller 1 will be displaced in the cable tie τ and return to the original position; = decay will give the subsequent automatic swing direction Return to the original, subject to the pressure of the helical spring 6 between the coil spring 6 and the opposing roller 2 Τ -Γ 丄 4 A. The purple belt T can be gently and smoothly sent by the rotation of the driving roller 1 In front. When the cable tie T is pulled back, for example, when the rotation center of the driving roller 丨 moves to a line L more forward than the straight line L of the swing center p of the continuous swing arm 5 and the rotation center Q of the counting roller 2, Loss the clamping force on the cable tie τ and cannot be strongly tightened. 'However, in the above configuration, the outer piece $ b of the swing arm 5 will be pressed by the limiter pin 11' and the rotation center of the driving roller 1 will not move. Rigid to the straight line 'so there is no need to worry about loss of gripping force. Also, in the cable tie supply device configured as above, when the cable tie T is pulled back 'due to the toggle effect', the greater the tension of the tightened cable tie T, the greater the holding force of the two rollers 1, 2 will be, Therefore, for the position setting of the driving roller 1 in the natural state, that is, the angle setting between the straight line L and the straight line S (the greater the angle, the stronger the toggle effect), and the choice of the setting torque of the torque clutch 13 can be selected in Within the range where the cable tie T does not break, the tightening degree can be adjusted arbitrarily. Moreover, 'the rotation center of the driving roller 1 is arranged in a state more than the straight line L in the cable-sending direction, and the force applied by the coil spring 6 is sandwiched between the driving roller 1 and the opposite roller 2. If the thickness of the cable tie T is changed, if the thickness of the cable tie T is changed, it will not affect the clamping force when sending out, pulling back and tightening. Therefore, the same device can be used to use the cable tie T of different thickness. , Corresponding to different types or sizes of the packaged object W, or its packaging form.

Page 14 V. Description of the invention (12) The cable tie of the machine: 3: f: When the cable tie is pulled back and tightened, it will be packed and packed, so it will not be the same as before: part (cam assembly) is not added The same as the negative method, the tightening failure of the set cam and the connecting mechanism is used to make Λ β & π, shortening the structural part to cause destabilizing instability or greatly reducing the number of parts. The relative and simple = tight method comparison can be used. In addition, it is difficult for the supply device itself to malfunction and reduce the manufacturing cost. In the present invention, the driving advantage is improved. The relationship between the above and the above embodiments is also reversed. The wheel 1 also has the elastic effect on the shrinkage deformability. Also, the roller with a metal surface on its peripheral surface can also use the inelastic layer la to the center 0. Move to the front end of Bilian pull in order to prevent the direct movement center p of the rotation center Q of the driving roller 1 and the rotation 4U, 41B of the counting roller 2. For example, the long hole function of the frame 4 can be used instead of = `` wheel 1 support Enabling device for the limiter of the shaft 10: the pin of the device. The person of the swing arm 5. The second milk cylinder is used to drive the spring material such as the coil spring 6. The drive shaft 7 supports the drive roller 1. The rotation of the "spindle" is not limited to the transmission mechanism of the gear machine, such as the gearbox, which can use a chain or a timing belt, as described in the above embodiment. In addition, the small arm's f arm 5 / swing range, that is, the displacement of the driving roller 1, can also be placed at an axis away from the swing center ρ of the swing arm 5, and the driving shaft is used as a gear mechanism. Or the chain mechanism will rotate ς = drive five, description of the invention (13) transmission to the drive roller] the support shaft] 〇 the structure of 于 * on the drive roller] displacement, will make the gears = each other = two: the chain tension There is a change in state, and there are disadvantages in the rotation drive γ ', while the relative, such as the above implementation =:', ^. When there is a driving shaft 7, the distance between the driving shaft 7 and the 4 bearing shaft of the driving roller 1 is 0. It is a very special thing with a surname of 1 ~ m. For a branch or chain mechanism, η ::, ® can often be passed through a gear mechanism, and in the above real ::::: of: turning point. On the bearing shaft 10, a transmission wheel is provided via a clutch, and the horse breaks 3 directly drives the swing arm 5 to rotate, and the clutch square device which disconnects the supporting shaft 10 is turned away from the cable tie W Conversely, the drive shaft 7 is connected to rotate through the teeth and 9b, and the clutch on the drive shaft 7 side can also be used for the motor 3 to be used for the cable tie to supply power. It is a component of a camshaft rotation power source. , Power source and cable tie unit The cable tie supply device of the present invention is not a sintering machine made of thermosynthetic synthetic resin cable ties, '" is used in the exemplified packing machine using cable ties for packing. on. It can also be applied to a cable tie supply device with & 邛 $ χ of its constituent elements, and the detailed structure is as follows: 1 :::;: ;; . Various design changes [Effects of the invention] When the invention according to item 1 of the scope of patent application is applied, a purple belt can be provided. 5. Description of the invention (14) Supply device, which is used to pack the packaged object with a cable tie In the packer, the < transportation-enclosing cable tie, and the purple belt tightening device that can tighten the purple belt after being wrapped around the packaged object, is to clamp the belt between the belt and the opposite roller. The driving roller is held by a swing arm. I is a very simple device that uses an energizing device to make the swing arm receive the force that can hold the two rollers in the direction of the roller. Tightening force, " 'When the purple belt is tightened, the purple belt will not be able to avoid the instability or failure of the operation of the cable tie knot caused by the load, shorten the life, etc. It has excellent running stability and durability. It is U-shaped and can also smoothly respond to strapping straps with different thicknesses. _ μϊΐ: When the invention of item 2 of the patent scope is requested, when the above-mentioned cable tie is supplied with a gear mechanism or a chain mechanism, the advantages of moving from the driving shaft iC to the supporting shaft of the driving roller are described. In the device, it can be supplied with a tie for the swing arm to swing forward 14 to prevent the rotation center of the driving roller from moving to the limiter, so it will be frustrated ΞΚΓΞΐ :: will move to a point earlier than the above straight line. ° Consistently strong tightening

Page 17 V. Description of the invention (15) [Brief description of the drawing] Figure 1: Front view of the strapping device for a packer according to an embodiment of the present invention. Fig. 2: A longitudinal sectional view of the cable tie supply device. Figure 3: The back view of the cable ties supply device, as shown above. Fig. 4: Principle explanatory diagram of the important parts of the cable tie supply device as above. Fig. 5: A longitudinal sectional front view of important parts of the basic structure of the baler. [Symbols of components] 1 ... drive roller la ... elastic layer 2 ... opposed roller 3 ... motor 4 ... frame 5 .... .. Swing arm 6 ... Coil spring 7 ... Drive shaft 8a'8b ... bearing 9a'9b ... gear. 10 ..... .Support shaft 11 ...... Limiter pin 13 ...... Torque clutch A ...... Cable tie section τ ... Cable tie w .... Packaged

Page 18

Claims (1)

Scope of Patent Application 1. A strapping device for a baler; it is in a baler that uses a strap to pack a to-be-packed object, and the strapping strap is lost between a pair of rollers. Forward the purple belt to the packing site, and turn the two straps around the two bundles to turn it back into the echo-response device. The characteristics are as follows: 1 # The roller is a driving roller whose forward and reverse rotation is driven by a rotary driving device; and is supported by the frame in an idling state, and is composed of packing, corresponding to the rotation, transmission, and wheel of the driving roller; The counter-rolling pendulum ϋ driving roller is supported by the φ frame and can swing freely. When the sending direction of the cable tie is set to the front, the upper β rotation center is located more than the swing center of the connecting arm 丄: 2 rollers When the straight line of the heart is more backward, the rollers are driven to live on the pendulum of the opposite roller side during the rotation of Qiao J wheel. ;: The above-mentioned swing arm of the baler in Item 丨 of the scope of application for patent in 2 is subjected to a bearing through the bearing, and the drive shaft is driven, and the bearing is supported by the rotary drive device described above. On the = t side of the support sleeve of the driving roller, the drive belt is provided with a strap supply device for a baler that transmits a rotational driving force to the supporting shaft of the above driving roller to apply for the item 1 or 2 of the patent scope, 2] page 9 Sixth, the scope of the patent application is a limiter that can limit the above-mentioned swing arm's forward swing limit, so that the rotation center of the drive roller cannot move to the line connecting the swing center of the swing arm and the rotation center of the opposite roller to the front. . Page 20