JPS6346322Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention can efficiently process grains by sequentially filling the grains, deaerating the inside of the packaging bag, sealing the opening of the packaging bag, and shaping the grains filled in the packaging bag. This invention relates to an automatic non-perforated bag packaging device for grains that performs non-perforated bag packaging.

In the past, grains such as rice were packaged in non-perforated bags, but the equipment for filling the grains into the bags was separate from the equipment for deaerating the bags filled with grains. This method had the disadvantage that the bags filled with grain had to be transferred to another deaerator, resulting in poor packaging efficiency.

Therefore, the present applicant filed various applications (Utility Model Application No. 58-144031, Utility Model Application No. 58-201517, Utility Model Application No. 58-201517, Utility Model Application No. 58-144031, Utility Model Application No. 58-201517,
59-049338), but if deaeration is performed in a series of packaging steps, the grains will be packed in one side of the packaging bag, making it necessary to shape the grains filled in the packaging bag in a subsequent process.

This invention enables highly efficient non-perforated bags for grains by sequentially performing the following operations: filling the grain, deaerating the inside of the bag, sealing the opening of the bag, and shaping the grain filled in the bag. This invention was developed for the purpose of packaging, and the present invention will be explained in detail below with reference to Examples.

In FIGS. 1 to 3, the bag end clamping device A is for moving both ends of the opening of the bag 2 clamped by a pair of bag end clamps 1 toward and away from each other. The bag end clamp body 1 is adapted to stop at three different positions (hereinafter referred to as an approach end position, an intermediate position, and a separation end position), approaching and separating from each other.

The suction seal clamp device B performs suction, sealing, and clamping of the opening of the packaging bag 2. A sealing device 4 is attached to the top surface of the clamping device 3, and a sealing device 4 is attached to the top surface of the sealing device 4. A pair of suction seal clamp bodies 6 each having a suction tool 5 attached thereto are provided facing each other. A set of suction seal clamp bodies 6 move toward and away from each other in a direction perpendicular to the moving direction of the bag end clamp body 1, and move to three different positions (hereinafter, these are referred to as contact positions,
It is designed to stop at an intermediate position (referred to as a remote end position).

The deaerator C is for deaerating the inside of the wrapping bag 2 containing grains. A gate 8 is provided above the suction seal clamp device B to guide the grains introduced into the hopper 7 to the wrapping bag 2, and the gate 8 is connected to the rod 10 of the cylinder 9 for elevating the degassing pipe via the connecting rod 11. A trachea 12 is attached, and this degassing pipe 12 is arranged in the hopper 7 and the cylinder 9
The degassing pipe 12 is moved up and down by the movement of the rod 10 in and out. Deaeration pipe 12 is flexible pipe 1
3 to a vacuum pump 14. The vacuum pump 14 is equipped with a pressure regulator 15 and a pressure meter 16 for regulating depressurization.

The auxiliary clamp device D is provided below the suction seal clamp device B to prevent grains from being sucked during deaeration. Bracket 1 attached to the suction seal clamp body 6
A plurality of guide rods 18 are horizontally fixed to 7,
An auxiliary clamp 19 is slidably attached to each guide rod 18, a compression spring 20 is fitted in each guide rod 18, and a guide plate 21 is attached to the tip of the auxiliary clamp 19. The distance between the opposing auxiliary clamp tools 19 is narrower than the distance between the opposing clamp tools 3. Therefore, when the opposing auxiliary clamp tools 19 come into contact with each other due to the approach of the suction seal clamp bodies 6 described above, the auxiliary clamp tools 19 move back relative to the bracket 17 against the elasticity of the compression spring 20. It is becoming possible to do so.

The packaging support device E is for supporting the lower end of the packaging bag 2 filled with grains, and in particular, care must be taken to prevent the sealed portion from being pulled and torn by the weight of the grains when the packaging bag 2 is sealed. is being done. this is,
A support plate elevating cylinder 23 is attached to the upper surface of the base plate 22, a support plate 25 is attached to the tip of a rod 24 of this cylinder 23 substantially parallel to the base plate 22, and one end of the base plate 22 is pivotally attached to a fixing member 26. , a support plate rotation cylinder 2 whose base end is pivotally connected.
The tip of the rod 28 of No. 7 is pivotally attached to the center of the lower surface of the substrate 22. Therefore, when the rod 28 of the support plate rotation cylinder 27 is moved in and out, the support plate 25 rotates in a vertical plane about the pivot point with the fixed member 26, and the support plate 25 is held horizontally and supported. Rod 2 of cylinder 23 for lifting plate
4 moves in and out, the support plate 25 moves up and down.

The shaping conveyor device F is for forcibly shaping the grains stored on one side of the wrapping bag 2 by applying an external force, and is connected to the side of the wrapping bag supporting device E. An upper conveyor 30 is disposed at a predetermined interval above the rear half of the lower conveyor 29, which also serves for carrying out, and holds down the grains that have been packaged in the previous process when they pass between the conveyors 29 and 30. It is a type of plastic surgery. Both conveyors 2
Guide plates 31 are provided at the shaping portions 9 and 30 to ensure shaping. Further, in order to smoothly perform the shaping, the interval between the lower conveyor 29 and the upper conveyor 30 is gradually narrowed from the inlet to the outlet. Furthermore, in Figure 1,
32 indicates a discharge conveyor.

Next, the operation of the present invention will be explained. First, as shown in FIG. In this state, the packaging bag 2 is fed below the gate 8 by a packaging supply device (not shown), and both ends of the opening of the packaging bag 2 are clamped by each packaging bag end clamp body 1.

In this state, each suction seal clamp body 6
After moving forward to the contact position, each suction tool 5 is activated to horizontally suck the opening of the packaging bag 2 slightly below, and then each packaging bag end clamp body 1 is moved to the approach end position. Then, both ends of the opening of the wrapping bag 2 are brought close to each other. When each suction seal clamp body 6 is moved to the remote end position in this state, the slightly lower part of the central opening of the bag 2 that is suctioned by each suction tool 5 is pulled outward, and it is closed. The gate 8 expands and enters the opening of the bag 2, resulting in the state shown in FIGS. 4A and 5B. Then, the rod 28 of the cylinder 27 for rotating the support plate is protruded, and the support plate 2 is rotated.
5 is placed horizontally. Furthermore, in this state,
The rod 24 of the support plate lifting cylinder 23 is retracted.

In this state, when a predetermined amount of weighed grains is put into the hopper 7, the grains pass through the gate 8 and are filled into the wrapping bag 2 (see FIG. 4B). In this state, a large amount of air enters into the packaging bag 2, causing the packaging bag 2 to inflate greatly, and the lower end of the packaging bag 2 is supported by the support plate 25.

Next, the degassing tube 12 that had been raised is lowered, and its lower end is inserted into the opening of the packaging bag 2. After that, each suction seal clamp body 6 is moved to an intermediate position, and the auxiliary clamps facing each other are moved. A slight gap (approximately 2 mm) is left between the tools 19, and when each wrapping bag end clamp body 1 is moved from the approach end position to the intermediate position, the opening of the wrapping bag 2 is placed in the center. Most of the openings except for the opening are closed, resulting in the state shown in FIG. 5C. In this state, if the inside of the packaging bag 2 is appropriately degassed using the degassing pipe 12, the fourth
As shown in FIG. 3C, the gaps between the rice grains, etc. become smaller, and the bag 2 filled with grains is slightly lifted upwards and becomes in a hanging state. Incidentally, since the gap between the opposing auxiliary clamp tools 19 is made small, grains will not be sucked in during deaeration.

Next, as shown in FIG. 4D, when the rod 24 of the cylinder 23 for raising and lowering the support plate is projected and the support plate 25 is raised by a predetermined amount, the lower end of the wrapping bag 2 containing the grains is raised by the support plate 25. It is supported and the hanging condition is eliminated.

Then, the degassing tube 12 is raised to separate its lower end from the opening of the packaging bag 2, and each packaging bag end clamp body 1 is moved to the separated end position, and then each suction seal clamp body 6 is moved. When further advanced and brought into contact, the opening of the packaging bag 2 is clamped in the horizontal direction by each clamping tool 3, and
The sealing devices 4 come into elastic contact with each other, resulting in the states shown in FIG. 4E and FIG. 5D. In this state (the lower end of the deaerated packaging bag 2 is supported by the support plate 25), the opening of the packaging bag 2 is sealed.

After sealing the opening of the packaging bag 2, the clamps of each packaging bag end clamp body 1 are unclamped and the suction seal clamp bodies 6 are separated from each other, so that the opening of the packaging bag 2 is unclamped, and then, When the rod 28 of the support plate rotating cylinder 27 is retracted, the horizontal support plate 25 rotates downward and tilts, and the bag 2 filled with grains is moved from the support plate 2.
5 and is transferred to a lower conveyor 29 which also serves as conveyance.

The inside of the bag 2 that has slid down the support plate 25 is filled with grains biased to one side, as shown in FIG. 6A.

As shown in FIG. 1, the wrapping bag 2 filled with grains biased to one side is shaped by a predetermined compressive force when passing between the lower conveyor 29 and the upper conveyor 30. As a result, as shown in FIG. 6B, the grains are uniformly filled in the wrapping bag 2.

Through each of the above steps, the opening of the wrapping bag is reliably sealed without tearing after degassing, and the grains stored on one side of the wrapping bag are shaped, and the grains are continuously packaged.

Further, FIG. 7 shows another embodiment of the present invention. The bag support device E' is a cylinder 3 for lifting and lowering the support plate.
A support plate 25 is horizontally attached to the tip of the third rod 34, and the support plate 25 is adapted to stop at three different positions along the vertical direction at predetermined intervals. After the support plate 25 is placed in the intermediate position and grain is filled into the packaging bag 2, the opening of the packaging bag 2 is sealed by being raised and placed in the raised end position. lower to the lowering end position.

One side of the upper half of the packaging bag 2 supported by the support plate 25 located at the descending end (shaping conveyor device
F' side) is provided with a forward fall prevention plate 40, and a rod 35 is provided on the other side of the lower end of this packaging bag 2.
An extrusion cylinder 38 is provided with an extrusion plate 37 having a roller 36 attached to its tip.

A shaping conveyor device F' consisting of a lower conveyor 29 and a plurality of shaping rollers 39 is connected to the side of the bag support device E'. Lower conveyor 2
9 and each shaping roller 39 becomes narrower from the inlet to the outlet.

Then, after lowering the support plate 25 that supported the wrapping bag 2 filled with grains to the lower end, the rod 36 of the pushing cylinder 38 is protruded and the lower end of the wrapping bag 2 is pushed out. It is transferred to the lower conveyor 29 with the lower end facing forward.

Further, in the above embodiment, the suction seal clamp body 6 and the auxiliary clamp tool 19 move forward and
Although it is configured to move backward, it may be configured to move forward and backward independently.

As described above, according to the present invention, it is possible to successively perform the following operations: filling the grains, deaerating the inside of the packaging bag, sealing the opening of the packaging bag, and shaping the grains stored unevenly in the packaging bag. In turn, grains can be packaged in non-perforated bags with high efficiency.

[Brief explanation of the drawing]

Fig. 1 is a front view of an automatic grain bag packaging device according to an embodiment of the present invention, Fig. 2 is an enlarged view of its main parts, and Fig. 3 is a wrapping bag 2 and a wrapping bag end clamp device. Figures 4 (a) to (e) and Figures 5 (a) to (d) showing the positional relationship with A and the suction seal clamp device B are diagrams for explaining the operation of the present invention, and Figures 6 (a) and (b) are FIG. 7 is a front view showing only the main parts of an automatic grain bag packaging apparatus according to another embodiment of the present invention. Explanation of symbols of main parts, A: Bag end clamp device, B: Suction seal clamp device, C: Deaerator, D: Auxiliary clamp device, E: Bag support device,
F: Shaping conveyor device, 1: Wrapping bag end clamp body,
2: Packaging bag, 6: Suction seal clamp body, 12: Deaeration pipe, 19: Auxiliary clamp tool, 25: Support plate, 2
9: Downward conveyor, 30: Upward conveyor, 39:
Shaping roller.

Claims (1)

[Utility Model Claims] A bag end clamping device comprising a set of bag end clamp bodies capable of clamping both ends of the opening of a bag, which are brought close to each other when the bag is filled and moved apart after filling; a suction seal clamping device comprising a set of suction seal clamp bodies which move close to and away from each other in a direction perpendicular to the direction of movement of the bag end clamp bodies to suck, seal and clamp the area near the opening of the bag; a deaeration device which sucks out, from inside the bag, air which has entered together with the grains filled in a bag clamped by the bag end clamping device; an auxiliary clamping device arranged below the suction seal clamping device, which is capable of approaching and moving away from each other in the same direction as the suction seal clamp bodies and which move in directions separating them during deaeration to narrow the area below the opening of the bag and prevent the grains from being sucked into the deaeration device; and a bag support device arranged below the suction seal clamping device so as to be able to move up and down and to rotate freely in a vertical plane, and which comprises a support plate which supports the lower end of the bag filled with grains. a shaping conveyor device disposed to the side of the bag support device for shaping the bag sealed by the suction seal clamp device after the grain is filled.