JP4451753B2 - Bag mouth bundling device - Google Patents

Description

  The present invention relates to a bundling device used to force a plastic bundling material to bite around a narrowly twisted bag mouth.

  A sausage in which a plastic tube open end filled with pork mince is bound with a clip made of horseshoe-shaped aluminum is widely known. The aluminum constituting the clip is superior in plasticity compared to other metals and exhibits a sufficient force to squeeze the bag mouth. However, when inspecting the metal mixed in food, there is a difficulty in reacting to the inspection equipment.

  Patent Document 1 below discloses a structure of an apparatus for binding a bag mouth while unwinding a chained plastic horseshoe clip from a reel, and escapes from a reaction in a metal inspection machine. However, this kind of clip made of plastic polycarbonate is also more resilient than aluminum, so there is a difficulty in loosening the bag mouth.

  The binding material disclosed in the following Patent Document 2 is formed with hook ends engaging with each other at both ends of a horseshoe-shaped plastic binding material, and the binding material wound around the bag mouth is formed into an annular shape by engaging the both ends. And the bag mouth is tightened by the elasticity of the whisker-like projection material on the inner surface of the binding material. However, the whisker-like projection material protrudes inward with elasticity, but has a problem in airtightness because it is configured to recede with reaction force against the elasticity.

JP 2003-63507 A Japanese National Patent Publication No. 11-500087

The present invention is a device for attaching a loose binding material to a bag mouth, and a large number of vertical binding materials along a tunnel track between two overlapping cover materials are integrated into one pitch with a band on both sides. Means for intermittently transporting one by one, a pair of cutting blades installed on both sides of the primary section of the tunnel track, a male element bending mechanism of the binding material, and a secondary section of the tunnel track, wherein A lift guide that guides the binding material while maintaining the male element in a bent state toward the bag mouth guide slit of
The lift guide comprises a lifting pedestal that pushes up the binding material and a closing bar of the male element installed on a track intersecting the lift guide, and the ends of the binding material are joined by a pair of cutting blades installed in the primary section. While cutting the material from the strips on both sides, the bending element is used to raise the male element of the binding material at a right angle, and the binding material obtained by bending the male element is passed through the lift guide of the secondary section on the pedestal. Therefore, the male element is pushed up by pushing up toward the bag opening guide slit in the upper region, and the male element is pushed down by pushing out the closing bar, so that the hook at the tip of the male element is engaged with the hook of the female element of the binding material.

  As shown in FIG. 11, the binding material described in the claims includes a boat-shaped female element 10 and a male element 12 provided with a spatula 11 that is pushed into the groove of the female element via a connecting material 13 and a soft plastic. The male element 12 is bent using the flexibility of the connecting member 16 as shown in FIG. 12, and the male element collar 17 in FIG. 11 to specify that the bag mouth is pushed into the female element 10 and pinched.

  A chain binding material in which a large number of binding materials are integrated with bands on both sides is intermittently transported by one pitch. When the state-of-the-art binding material stops at the primary section, a pair of cutting blades protrude and cut the connecting material at both ends of the binding material from the bands on both sides, and simultaneously bend the male element in the binding material to about 90 by the folding element. .

  When the binding material advances one pitch to the secondary section, the lifting platform squeezes the binding material along the lift guide while the male element maintains a 90-degree angle, and pushes it into the upper slit. Cover the above-mentioned binding material. Immediately after that, a closing bar protrudes from the lateral direction, and the male element is brought down and put on the bag mouth, and the male element's heel and the female element's heel are forcibly engaged. The movement direction of the lifting pedestal is not limited to the upward direction described in the claims, but may be changed to the horizontal or downward direction, and the movement direction of the closing bar changes accordingly. It is considered that there is no unnaturalness.

  FIG. 5 is a side view of a part of the apparatus, and shows a configuration in which the chain binding material 10 rolled around the reel 19 is guided to the tunnel track 23 formed between the two types of covers 21 and 22 stacked one above the other. The feeding claws 26 and 27 supported by the piston rods of the two front and rear fluid cylinders 24 and 25 intermittently convey the chain binding material 10 by one pitch.

  As shown in FIG. 9 which is a front view of the both feed claws, the bracket 56 fixed to the piston rod 55 of the cylinder 24 includes a shaft 57 that rotatably supports the feed claws 26, and the torsion coil spring 58 includes the feed claws 58. The nail | claw 26 is made to exhibit a non-return effect.

  In FIG. 7 continued from FIG. 5 described above, the two feeding claws 26 and 27 are simultaneously advanced in the feeding direction of the chain binding material 10, and the reverse movements are alternately operated to check the chain binding material 10. Prevent loosening. When the sensor 59 installed on the cover 21 detects the end of the chain binding material 10 being transferred, an alarm 60 is transmitted. In this case, the foremost check pawl 61 includes the two rear end check claws 26, Even if the chain binding material 10 disappears from the region 27, the remaining binding material is not loosened.

  FIG. 6 is an enlarged view of the chain binding material. The binding materials 10 already described in FIG. 11 are arranged in a column between the two strips 15 on both sides, and both ends of each binding material 10 are respectively shown. Is connected to the band 15 via the connecting material 16. In addition, the hole 17 formed in the said belt | band | zone 15 at equal intervals shows the Example which hooks the nail | claw of a claw wheel in this hole, and enables it to convey.

  FIG. 7 shows the end portion of the tunnel track 23 already described. As shown in FIG. 8, the chain binding material 10 is transported along the tunnel track 23 toward the front surface of the guide plate 30, and the guide The bag mouth is bound in the plate 30. When the back surface of the guide plate 30 is viewed from the direction of the arrow I in FIG. 7, it is illustrated as shown in FIG.

  That is, the guide plate 30 shown in FIG. 1 deletes most of the front cover plate 31 and displays the inside thereof. A flat bar is provided below the groove-shaped lift guide 32 formed in the vertical direction. While the formed lift base 33 is disposed, a closing bar 34 is disposed on the track 24 intersecting with the lift guide 32, and a pair of cutting blades 35 and a bending mechanism 36 for the binding material 20 are disposed.

  More specifically, as shown in FIG. 10, the pair of cutting blades 35 are for the purpose of cutting the connecting material 16 between both ends of the binding material and the bands 15 on both sides, while the bending mechanism 36 is male. The element 12 is bent by a 90-degree angle along the arrow 39, and the bending mechanism includes an operation lever 37 and a push plate 38.

  That is, in FIG. 2, both ends of the pair of cutting blades 35 are moved to cut both ends of the binding material 10, and the male element 12 is raised by the pressing force of the push plate 38 that rotates integrally with the lever 37. However, such an action is performed when the cutting edge binding material 10 reaches the primary section 81 in FIG. 6 (male element 12 standing), and then moves to the secondary section 82 by one pitch with the male element 12 standing. The binding material 10 to be pushed is pushed up to the upper limit by the elevating pedestal 33 as shown in FIG. 3, and the male element 12 is put on the female element 10 by pushing out the opening / closing bar 34 as shown in FIG.

  As apparent from FIG. 7, the pair of cutting blades 35 supported by the operation cylinder 40 is disposed in the primary section in front of the lifting platform 33, and the lifting platform 33 supported by the power device 41 in the secondary section includes: The binding material is moved up along the lift guide 32, but this work step is performed by applying a pressure to the lever 47 to push the twisted bag mouth from the direction of the arrow 46 along the guide slit 45 in FIG. When the lever 47 moves away from the sensor 48, it starts with a signal generated by the sensor 48.

  That is, in FIG. 7, when the twisted bag mouth of the wrapping bag 80 acts on the lever 47 and the sensor sends a signal, the cutting blade 35 operated by the operation cylinder 40 in the primary section is moved from the band 15 on both sides. While separating 10, a separate cylinder 50 operates the folding mechanism 36 of FIG. 1 to raise the male element 12 in the tie. Subsequently, when the first and second feeding claws 26 and 27 in FIG. 7 are simultaneously advanced to feed the chain-bound material 10 by one pitch, the power machine 41 in the secondary section is at the cutting edge with the lift base 33. The binding material 10 is put on the upper bag mouth, and as already described in FIG. 4, the closing bar 34 protrudes from the side to further bend the male element 12 of the binding material.

  As shown in FIG. 13, the elevating pedestal 33 includes two cylinders 61 and 62 connected in series, and these cylinders and the pump 68 are connected to two ON. Connect through an off valve. In the initial start-up, first, by switching the valve 1, the piston 63 of the first cylinder 61 lifts the binding material together with the lifting / lowering base material 33 to the bag opening region in the guide slit 45, and subsequently the valve 2 of the reference 2. Due to the pressure of the pump 67 accompanying the switching, the piston 65 of the second cylinder 64 pushes out the closing bar 34 and closes the binding material around the bag mouth. After that, by switching the valve 3, the piston 66 of the third cylinder 62 presses the binding material on the elevating pedestal 33 against the lower surface of the closing bar 34, and 2 in the binding material by the re-squeezing pressure of the binding material. This makes the engagement of the individual hooks more reliable. In practice, a cam can be used instead of the three cylinders 61, 62, and 64, and the lift base 33 can be pushed up in two stages by the two-stage cam.

Action explanatory diagram of the device that bends the binding material Action explanatory diagram of the device that bends the binding material Action explanatory diagram of the device that bends the binding material Action explanatory diagram of the device that bends the binding material Chain binding material support device illustration Plan view of chain binding material Partial side view of clinching the binding material to the bag mouth Back view of bag mouth clinch part Front view of the previous figure Explanatory drawing of separation and folding device from band of binding material Perspective view of binding material Explanatory drawing of folded binder Elevator base material and closing bar power machine explanatory diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Bundling material 12 ... Female element 13 ... Connecting material 15 ... Band 16 ... Connecting material 17, 18 ... Cover 21, 22 ... Cover material 23 ... Tunnel track 12, 25 ... Cylinder 26, 27 ... Check claw 32 ... Lift guide 33 ... Lifting base 34 ... Closing bar 35 ... Cutting blade 36 ... Bending mechanism 45 ... Bag opening guide slit 59 ... Sensor 60 ... Alarm 61, 62 ... Two-stage power machine 81 ... Primary section 82 ... Secondary section

Claims (4)

A means for intermittently transporting a chained binding material, in which a large number of tandem binding materials are integrated with belts on both sides, along a tunnel track between two types of overlapping cover materials, and a primary in the tunnel track A pair of cutting blades installed on both sides of the section, a male element bending mechanism of the binding material, and a secondary section of the tunnel track, the male track facing from the tunnel track toward the upper bag mouth guide slit. A lift guide that guides the binding material while maintaining the element in a bent state, a lifting base that pushes up the binding material in the lift guide, and a closing bar of the male element installed on a track that intersects the lift guide,
While the connecting material at both ends of the binding material is cut from the bands on both sides by a pair of cutting blades installed in the primary section, the male element of the binding material is raised at a right angle by the bending mechanism, and the male element is bent. The bundling material is pushed up through the lift guide of the secondary section toward the upper bag opening guide slit with the pedestal, and further, the male element is pushed down by pushing out the closing bar, Engaging the folds of the female binding element.   As a means for intermittently transporting a chained binding material, in which a large number of columnar binding materials are integrated with bands on both sides, by one pitch, a check claw that engages with the chained binding material before and after is supported by a fluid cylinder. 2. The apparatus according to claim 1, wherein the check pawls are simultaneously advanced and alternately retracted by piston rods of the fluid cylinders.   The apparatus according to claim 1 or 2, wherein an alarm is connected to a chain binding material detection sensor installed in a tunnel track, and an alarm is transmitted by the sensor that detects an end of the continuous binding material that is intermittently transferred.   A two-stage power machine is used as a lifting pedestal power machine that pushes the binding material toward the bag mouth guide slit. After pushing down the male element by pushing out the closing bar, the binding material supported by the lifting pedestal is directed toward the closing bar. The apparatus according to claim 1, wherein repressurization is performed.