JPS6011819Y2 - Raw material cutting device inside the packaging cylinder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for cutting only the inner raw material from the outside of a packaging tube filled with raw materials.

Conventionally, when filling a fixed quantity of fish and meat, raw materials are continuously injected into a packaging cylinder that is continuously fed, and when this continuous raw material is sandwiched by handling rollers that open and close intermittently, it moves backwards. The tube is handled to form an empty space of a predetermined size inside the packaging cylinder, and this area is used to seal the packaging cylinder to form the bottom, which is then cut along the bottom edge to handle the stuff once filled. It is unreasonable, but oil, moisture, or sometimes a part of the raw material remains in the empty area after handling the raw material, which worsens the sealing performance, so it is necessary to extend the sealing time or Not only is sealing failure likely to occur, but it also requires rollers for handling raw materials and an intermittent opening/closing mechanism, making the device complex.

The present invention was developed in consideration of this drawback, and includes a cutting blade that has a gap larger than the thickness of the packaging cylinder between the open end of the raw material filling tube and a cutting blade that can be used to inject a predetermined amount of raw material. The purpose of the present invention is to provide a device which, when carried out, stops and activates the injection of raw materials, cuts only the raw material inside without cutting the packaging cylinder, and forms an empty part in the packaging cylinder from the beginning. do.

The present invention will be explained below based on embodiments shown in the drawings.

A is a screw feeder, with opening 1 at the top for feeding raw materials.
At the bottom of the hopper 2, a pair of screw shafts 4, 4 with screws 3, 3 formed in opposite directions are disposed upwardly slanting.
Equal screw shafts 4, 4 are linked to the rotation of motor 5 through gears 6.6
They are transmitted to each other and rotated in opposite directions, and the input raw material is fed under pressure and sent out from the output lower.

Reference numeral 8 denotes a gear pump connected to the output lower of the screw feeder A, which rotates a pair of precisely meshed gears 9, 9 in opposite directions to forcefully push out a fixed amount of raw material sent from the screw feeder A from the discharge port 10. let

Reference numeral 11 denotes a filling pipe connected to the discharge port 10 of the gear pump 8, and its cross-sectional shape changes from a circle to an ellipse to a rectangle so that the extruded raw material becomes plate-shaped.

A means for forming and feeding a packaging tube 12, and a filling tube 11
The original fabric 14 of the film 13 is placed below the original fabric 14.
4, the film 13 is pulled out, and hung on a forming bar 15 provided so as to surround the filling tube 11.
is formed into a cylindrical shape so that the edges overlap above the filling tube 11, and a heat sealer 16 is arranged behind the forming bar 15 to weld the overlapping edges of the film 13 while traveling to form the packaging cylinder 12. Then, on the downstream side of this heat sealer 16, it contacts the packaging cylinder 12 and rotates in the direction in which the raw material advances,
a roller 17 that feeds the packaging cylinder 12 in accordance with the progress of the raw material;
17 is provided, and these rollers 17, 17 are connected to the packaging tube 12.
It is slightly deflected toward the center of the downstream side of the flow so that it is formed in close contact with the filling tube 11.

A motor 1 18 drives the gear pump 8 and is connected to the gear pump 8 via a reduction gear 19 and a clutch brake unit 20 .

C is a means for regulating the filling amount of raw material by the gear pump 8, which measures the number of revolutions of the gear pump 8 when the gear pump 8 discharges a predetermined raw material, sets this number of revolutions in a pulse counter 21, etc. When the gear pump 8 rotates by a set number of rotations, a counter 21 sends a signal to the controller 22, and the clutch brake unit 20 stops the gear pump 8 and stops discharging the raw material.

Reference numeral 23 denotes a raw material cutting blade provided at the lower front side of the filling tube 11, and its both ends are supported by guides 24, 24 to cut the filling tube 1.
1 so that the gap with the opening is slightly larger than the thickness of the packaging cylinder 12, and a cylinder 25 is installed at the lower center,
The cutting blade 23 is lowered by this cylinder 25 while the raw material is being discharged, and when the raw material has stopped being discharged, the cutting blade 23 is raised and the cutting edge is crushed to cut only the filling material inside without cutting the packaging cylinder 12. It is.

Reference numeral 26 denotes a belt conveyor provided in front of the cutting blade 23, and is stretched horizontally so that its upper surface matches the lower surface of the raw material discharged from the filling tube 11.

Reference numeral 27 denotes a carriage conveyed by the belt conveyor 26, and rollers 29, 29 are provided above and below both sides of the carriage for moving guides 28, 28 parallel to the belt conveyor 26, and in the center of this carriage 27, The belt conveyor 26 is pressed down by a presser roller 31 between two receiving rollers 30, 30 provided at a predetermined interval to form a recess 32 for housing a sealing stand to be described later.

D is a means for sealing the packaging tube 12 installed on the carriage 27, and a pair of vertical guides 33, 33 are provided on the carriage 27 with the belt conveyor 26 between them, and the secondary guide 3
At the bottom of 3.33, a seal stand 35 is attached with slides 34 and 34 at both ends, and at the upper end, a heater 37 is attached so as to be movable up and down with slides 36 and 36.
At both ends of the rod 38.7, each end is bent into a hook shape.
39, and the upper ends of the rods 38 and 39 are connected by an opposing crank 41.42 rotated by a rotary actuator 40.40.
When one rotation of , one rod 38 rises and pulls up the seal stand 35 , the other rod 39 descends, pushing down the heater 37 and sandwiching the packaging tube 12 , and the other rotation moves each part apart from the above. It operates in the opposite direction to move away from the packaging cylinder 12.

Reference numeral 43 denotes a cutting blade for the packaging cylinder 12 attached to the front side of the heater 37. When the heater 37 sandwiches the packaging cylinder 12 between it and the sealing stand 35 to perform sealing, the cutting blade 43 is attached to the receiving blade 44 installed at the front side of the sealing stand 35. They engage and cut the packaging tube 12.

45 is a jig cylinder provided at a position to sandwich the belt conveyor 26 between it and the presser roller 31; 46 is provided below the belt conveyor 26; a rod 47 is connected to the reciprocating table 27;
The cylinder 46 is a cylinder connected to the heater 3.
When the packaging tube 12 is held between the sealing table 7 and the sealing table, the carriage 27
Following this, the jig cylinder 45 operates to sandwich the belt conveyor 26 between it and the presser roller 31 so that the carriage 27 moves forward together with the belt conveyor 26, and the heater 37 and sealing stand 35 move forward together with the packaging cylinder. 12, the jig cylinder 45 moves away from the belt conveyor 26, and the cylinder 46 operates in the opposite direction to the belt conveyor 26, acting to return the carriage 27 to its home position.

Reference numeral 48 denotes a motor that drives the belt conveyor 26, whose rotation is appropriately controlled by a reducer and a transmission 49, and which drives the belt conveyor 26.
The rotation is transmitted to the conveyor roller 51 by the reversing gear 52.
7 is rotated at the same circumferential speed as the belt conveyor 26.

Therefore, according to the above-mentioned configuration, the raw material that is input into the hopper 2 of the screw feeder A, is fed under pressure by the screws 3, 3, and reaches the gear pump 8, is pushed out by the gear pump 8 to the filling pipe 11, and is pushed out to the outside of the filling pipe 11. Since the packaging tube 12 is loaded and fed, the packaging material is fed from the filling tube 11 to the belt conveyor 26 in front of it, passing over the waiting cutting blade 23 as shown in FIG. conveyor 2
6 receives and carries it.

When the set amount of raw material has been dispensed in this way, the regulating means C detects this and temporarily stops the gear pump 8 to stop extruding the raw material, and then the cylinder 25 is operated and the cutting blade 23 is moved to close the opening of the filling pipe 11. It is raised across the board as shown in Figure 6 of the drawing.

However, there is a gap between the waist cutting blade 23 and the filling tube 11 that is slightly larger than the thickness of the packaging tube 12, and the cutting edge of the cutting blade 23 is crushed to the extent that the sheet cannot be cut. The cylinder 25 is not cut by the cutting blade 23, and only the raw material inside is cut as shown in the figure.
In order to lower the material to the standby position shown in FIG. 5, the cut downstream material is transferred by the belt conveyor 26 while pulling out the packaging tube 12.

However, since extrusion of the raw material from the filling tube 11 is interrupted, an empty portion is formed in the packaging tube 12 which is not filled with raw material.

When this empty space reaches a predetermined size, a known timer (not shown in the drawings) is activated, and when the gear pump 8 is restarted to extrude the raw material, the rotary actuator 40 in the sealing means is activated. 40 and jig cylinder 45 operate, the rod 3B pulls up the seal stand 35, the rod 39 pushes down the reheater 37, and at the same time, the empty part of the packaging cylinder 12 is held between the two on the upstream side, and the reciprocating table 27 Belt conveyor 2
6, and while applying heat and pressure to the packaging tube 12, the cutting blade 43 and the receiving blade 44 are engaged to cut the packaging tube 12.

Therefore, when the series of packaging cylinders 12 are separated and sealed upstream of the separation position and the bag bottom is formed by this seal, the rotary actuators 40, 40 are rotated in the opposite direction by the operation of another known timer. At the same time as the seal stand 35 and heater 37 are separated from the packaging tube 12, the jig cylinder 45 separates from the belt conveyor 26 and stops the advance of the carriage 27, and instead the cylinder 46 returns the carriage 27 to its home position.

At this time, the next extrusion material will reach the set amount, so
The filling amount regulating means C operates to perform the same action as described above and stop extrusion of the raw material, and at the same time operates the cutting blade 23 to cut the raw material inside without cutting the packaging cylinder 12.
The operation is to form an empty space within the space 2.

As mentioned above, the device according to the present invention is provided with a cutting blade that moves across the front of the filling tube at the open end of the filling tube for filling raw materials into the inside of the packaging tube that is attached and fed to the outside. The gap between the opening end of the filling tube is set to be slightly larger than the thickness of the packaging cylinder, so it is possible to reliably cut only the raw material inside without cutting the packaging cylinder that is filled with raw materials and fed out. Therefore, it is easy to form an empty part in the packaging cylinder by simply stopping the supply of raw materials during cutting, and since no raw material enters this part from the beginning, some of the raw materials and moisture Since oils and fats do not stick to the packaging tube and make sealing difficult, it is possible to achieve a complete seal in the shortest possible time. This method has the unique effect that there is no unreasonable need to handle and empty the raw material, and therefore the rollers and intermittent drive mechanisms required for this can be omitted, simplifying the apparatus.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the device related to the present invention.
Figure 1 is a side view of a quantitative filling device using this device, Figure 2
The figure is a plan view of the same as above, FIG. 3 is a side view showing the cutting blade and its drive unit in a longitudinal section, FIG. 4 is a front view of the same as above, FIGS. FIG. 7 is a side view of the seal pre-cut, and FIG. 8 is a side view of the center longitudinal section of the same. In the figure, 11 is a raw material filling tube, 12 is a packaging tube, and 23 is a cutting blade.

Claims (1)

[Scope of utility model registration request] A cutting blade that moves across the front of the filling tube is provided at the open end of the filling tube that fills the inside of the packaging tube that is fed to the outside with raw materials, and the gap between the cutting blade and the open end of the filling tube is A raw material cutting device in a packaging cylinder, characterized in that the thickness is set larger than the thickness of the packaging cylinder.