ES1078982U - Automatic machine packaging bags within a plastic sack manufactured by the own machine (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, of the type that previously forms the bags and bags from a plastic material coil, composed of the following subsets: - acceleration tape (2) - accumulator-counter (3) - bag maker (4) - vertical welding (5) - english fold profiler (6) - jaws (7) - bag ejector (8) - coil lift (9) - unwinder (10) Characterized in that the sack forming subassembly (4) comprises a truncated pyramidal bell (4.3) channeling the polyethylene film with which the plastic bag (11) is manufactured, the bell (4.3) being intersected by a trunk sheath (4.2) -rectangular that surrounds a tube (4.1); Where the polyethylene film is forced to circulate first above the bell and then between the tube and the sheath, with the force exerted downward by the weight of the ice bags (12) contained within the plastic bag. (Machine-translation by Google Translate, not legally binding)

Description

Automatic bag bagging machine inside a plastic bag manufactured by the machine itself,

Object of the invention

The industrial sector to which this invention belongs is the manufacturing of bagging and wrapping machines.

This invention consists of an automatic bagging machine for ice packs, which can also be used to bag multiple products irregularly, in bags for easy handling. It also includes the plastic bag manufactured by the machine and with which the ice bags are bagged.

Background of the invention

Most existing bagging machines are made of powdery products used in construction, such as plaster, cement, sand; or in food such as sugar, salt, flour, etc., which require a product storage hopper and different mechanisms that work according to the principle of pneumatic transport where finally said product is pocketed.

Another important type is that of packaging machines that use a shrink film that adapts to the contour of the final product.

There are also automatic or semi-automatic packaging machines for bottles, containers or packages of various products etc.

Bagging machines can be classified into two large groups, one in which the machine itself forms the corresponding bags and another in which the bags are supplied to the previously manufactured machine.

The machine object of this invention is of the first type, that is to say that it forms the bags from plastic sheet material rolled in a motorized coil belonging to the machine itself.

The author of this improved bagging machine has made a series of innovations and modifications in several of the existing subsets and mechanisms in current machines, which simplify and significantly improve its operation. Her CARACTERISTICS

main, are described below.

Description of the invention

This automatic bag bagging machine inside a machine is composed of the following subsets: 5 Accelerator belt Accumulator-counter Sack former Vertical thermal welder English fold clamp-Jaws 10 Bag ejector Coil elevator Unwinder

sack manufactured by the own

Acceleration belt: This horizontal belt transports the bags until they are placed on a base composed of two upper gates that tilt each

15 on a horizontal axis, allowing with its opening the passage of the bags towards the accumulator. Its function is to separate the ice packs so that the distance between them is correct.

Prior to this belt, other conveyor belts act, particularly the lifting of the ice packs to the top of the bagging machine where

20 pick up on the acceleration belt.

Accumulator-bag counter: This subset has a photoelectric cell that detects the passage of the bags, which is associated with a programmable counter, whose output is sent to the central computer which orders the opening of the lower gates of the accumulator once completed the expected amount of

25 bags The ice packs fall into the accumulator, previously counted and ordered, that is, one above the other, before being bagged. The lower part also has two horizontal axis tilting gates.

Bag former: Its function is to form plastic bags, whose material in polyethylene sheet, comes from a coil located at the rear of the machine.

The machine drives the polyethylene sheet that hugs a vertical rectangular forming tube through which the ice bags circulate. In turn, this subset has an outer sheath that channels said sheet and is then welded vertically in the overlapping area.

Vertical welder: Its function is the thermal action welding of the vertical overlapping end of the plastic bag. Powered by a pneumatic cylinder, it supports its previously preheated welder head for a certain time on the overlap, and is removed so that it then lowers the bag.

English fold profiler: This mechanism introduces some punches in the lower part of both sides of the bag a moment before the jaws act, in order to make a vertical fold and into the bag, called English fold.

Jaws: The jaws have several functions that they perform simultaneously: 1. Once the ice packs fall in predetermined quantity in the sado, they weld by thermal action the lower horizontal end of the next sack that is still placed above in the forming tube. 2.-Make a horizontal precut by stippling the separated line between sack and sack. 3.-Make a vertical precut by stippling the handles of the bag. 4.-Weld the upper horizontal end of the bag with two welds.

Bag ejector: This mechanism has two functions. It has a platform where the bag is supported when the ice bags fall. Once the bag has been filled, the platform rises about 10 centimeters to facilitate the action of the jaws in the process of sealing and trimming the bag. Once the bag is sealed and trimmed, the ejector acts by pushing it by means of an arm operated by a pneumatic cylinder, to a conveyor belt.

Bobbin lift: This motorized mechanism has the function of raising the coil from the ground with the rolled polyethylene film, to its working position in the machine once the operator has placed it between two hooks that support the coil axis. It is composed of a reduction motor that drives the transmission bar, which coils or unwinds the straps that hold the hooks, which support the coil shaft until it is positioned in the unwinder subassembly.

Unwinder: This motorized mechanism has the function of unwinding the coil as it is used due to its considerable weight. It is composed of the unwinder structure that holds the bobbin shaft and the motor. The contour of the reel of polyethylene film is pulled by the action of the friction pulley, driven by the motor. The tangential force transmitted by the friction pulley that rests on the coil regardless of its diameter, is caused by the weight of the motor as it rotates on the motor support axis together with the arm that holds it.

The plastic bag that is part of the inventive unit, is a bag of approximately 70 x 30 cm, made from a sheet of polyethylene rolled in a coil by the automatic machine itself. It has two handles that facilitate handling.

It is formed by going through four subsets: Bag former; vertical thermal welder; English fold profiler, and finally horizontal and pre-cut welded points made by the jaws.

The advantages of the invention in relation to the prior art are the following:

Total automation of the bagging process of the ice packs, from the moment the operator places the plastic coil in the machine to form the bags, until they are completely finished with the final bagged product, which is finally ejected to a tape output conveyor

Description of drawings

To complete the description of this invention and in order to facilitate the understanding of its characteristics, a series of figures are attached in which, with illustrative and non-limiting nature, the following drawings whose main components are the following have been represented:

(one)

Bagging machine

(2)

Subset: Acceleration Tape

(2.1) Conveyor belt

(2.2) Handrail

(2.3) Motorized belt

(3) Subset: Accumulator-counter

(3.1) Accumulator closure 5 (3.2) Upper horizontal gates

(3.3) Lower horizontal gates

(3.4) Upper gate drive mechanism

(4) Subset: Bag former

(4.1) Tube 10 (4.2) Outer sheath

(4.3) Bell

(5) Subset: Vertical Thermal Welder

(5.1) Welder head

(5.2) Welder drive cylinder 15 (5.3) Guiding bars

(6) Subset: English fold profiler

(6.1) Fold profiler

(6.2) English fold profiler drive cylinder

(7) Subset: Jaws 20 (7.1) Anterior jaw

(7.2) Rear jaw

(7.3) Spot trimmer (7.4) Horizontal thermal welder

(7.5) Jaw drive cylinder

(8) Subset: Bag ejector

(8.1) Ejector 5 (8.2) Ejector drive cylinder

(8.3) Bag lifting platform

(8.4) Platform drive mechanism

(9) Subset: Coil Elevator

(9.1) Bobbin shaft clamping hooks 10 (9.2) Lift drive reduction motor

(9.3) Transmission bar

(9.4) Belt

(10) Subset: Unwinder

(10.1) Coil shaft 15 (10.2) Unwinder motor

(10.3) Unwinder structure

(10.4) Friction Pulley

(10.5) Motor support shaft

(10.6) Arm 20 (11) Plastic bag

(eleven

.1) Handle

(eleven

.2) Pre-cut points

(11.3) Vertical welding

(11.4) Lower horizontal welding

(11 .5) Superior horizontal welding

(11.6) English fold 5 (11.7) Pre-cut flap

(12) Ice pack Figure 1A is a perspective drawing of the machine, viewed from the front. Figure 1 B is a perspective drawing of the machine, viewed from a bottom. Figure 2 is a perspective drawing of the subset called the acceleration belt.

10 Figure 3 is a perspective drawing of the subset called accumulator-counter. Figure 4 is a perspective drawing of the subset called the bag former. Figure 5 is a perspective drawing of the subset called thermal welder

vertical. Figure 6 is a perspective drawing of the subset called fold profiler

15 English Figure 7 is a perspective drawing of the subset called jaws. Figure 8 is a perspective drawing of the subset called bag ejector. Figure 9 is a perspective drawing of the subset called coil elevator. Figure 10 is a perspective drawing of the subset called unwinder.

20 Figure 11A is a perspective drawing of the plastic bag (11) with the flap (11. 7)

pre-cut Figure 11 B is a perspective drawing of the plastic bag (11) with the flap (11. 7) cropped

Figure 12A is an elevation drawing of the plastic bag (11) with the flap (11. 7)

pre-cut

Figure 128 is an elevation drawing of the plastic bag (11) with the flap (11.7) cut out.

Figure 13 is a perspective drawing of a plastic bag (11) loaded with ice packs (12).

Preferred Embodiment of the Invention

Among the different types of bagging machines and bags that can be manufactured based on this invention, the preferred embodiment is as described below.

The bagging machine (1) as described, is composed of the following subsets: Acceleration belt (2) Accumulator-counter (3) Bag former (4) Vertical thermal welder (5) English fold profiler (6) Jaws (7)

Bag ejector (8)

Coil Lift (9)

Unwinder (10).

Before the acceleration belt (2), the ice packs (12) previously pass at least two conveyor belts: a first exit belt of the ice packs (12) of the cube-producing machine, and then through a second lifting conveyor belt of said bags that deposits them on the acceleration belt (2) whose function is to separate the bags sufficiently so that the distance between them is correct before being deposited in the upper horizontal gate (3.2).

_______________________________________IIIIS_____W

Subsequently, the ice packs (12) fall on the lower horizontal gate (3.3) of the accumulator-counter (3), in programmed quantity. This subset has a photoelectric cell that detects the passage of the bags, which is associated with a programmable counter, whose output is sent to the central computer which orders the opening of the lower gates of the accumulator once the expected number of bags has been completed. At the same time the plastic bag (11) is formed, whose material in polyethylene film, comes from a coil that rotates on the shaft (10.1) and which is unwound by the motor (10.2) due to its weight. Said coil is part of the coil lift subset

(9) which is composed of a reduction motor (9.2) that drives the transmission bar (9.3), which coils or unwinds the belts (9.4) that hold the hooks (9.1) that support the coil shaft (10.1) until its positioning in the unwinder subset (10.3). The bobbin shaft is part of the unwinder subset (10) which is composed of the unwinder structure (10.3) that holds the bobbin shaft (10.1) and the motor (10.2). The contour of the reel of polyethylene film is pulled by the action of the friction pulley (10.4) driven by the motor (10.2). The tangential force transmitted by the friction pulley (10.4) that rests on the coil regardless of its diameter, is caused by the weight of the motor (10.2) as it rotates on the motor support shaft (10.5) together with the arm (10.6 ) that holds it.

This sheet then passes through the top of the hood (4.3) and then outside the tube (4.1) of rectangular section, wrapping it. This tube is partially sheathed by the outer sheath (4.2) which together with the tube (4.1) channels the bag

(11) forming its vertical contour, whose front part facing the front machine, is welded by the subset of vertical thermal welding (5) by performing vertical welding (11.3).

Subsequently they act on both sides of the bag, the subset assemblers of English fold (6) that make the folds (11.6).

Then the subset of jaws (7) performs a series of simultaneous functions: It performs the lower horizontal welding (11.4) of the bag (11) that is still in the tube (4.1). Shape the handles (11.1) by pre-cutting points (11.2). Make the two upper horizontal welds (11.5) of the bag (11).

Before operating the jaws, using the platform drive mechanism (8.4), the bag lift platform (8.3) is raised by 10 cm so that the operation of the jaw subset (7) is not carried out with the bag hanging and loaded with the bags

of ice (12). Finally, the ejector (8.1) operated by the pneumatic cylinder (8.2) acts, and

moving the bag to an exit conveyor belt.

Once the nature of this invention has been sufficiently described, as well as a practical application thereof, it only remains to be added that both its shape and the materials and manufacturing process are susceptible to modifications, provided that they do not substantially affect the characteristics which are claimed below.

Claims (32)

1. Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, of the type that previously forms the bags and the 5 bags from a coil of plastic material, consisting of the following subsets: Acceleration belt (2) Accumulator-counter (3) Bag former (4) 10 Vertical soldier (5) English fold profiler (6) Jaws (7) Bag ejector (8) Bobbin lift (9) 15 Unwinder (10) characterized in that the sack-forming subset (4) comprises a truncated pyramidal bell (4.3) channeling the polyethylene film with which the plastic sack (11) is manufactured, the bell (4.3) being intersected by a sheath (4.2) trunk-rectangular 20 wrapping a tube (4.1); where the polyethylene film is forced to circulate first over the hood and then between the tube and the sheath, with the force that the weight of the ice packs down (12) contained within the plastic bag. 25 2. Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim one, characterized in that the accumulator-counter subset (3) of bags, composed of a vertical metal tube of rectangular section has its lower part of two horizontal axis gates on which the bags that accumulate before falling into the bag are supported.

3.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim one, characterized in that the accumulator-counter subset (3) has a photoelectric cell that detects the passage of the bags, being associated the photoelectric cell to a programmable counter, this in turn linked to lower gates (3.3) of the accumulator-counter subset (3); where once a planned quantity of bags is completed, the opening of the lower gates is ordered (3.3).

Four.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim one, characterized in that the subset of jaws (7) is composed of two opposite jaws of pneumatic actuation and horizontal displacement, which have trimmers by points (7.3) of the upper and lower horizontal ends of the bags and their handles; and of upper and lower horizontal welders (7.4) of the bags.

5.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim one, characterized in that the bag-ejector subset (8) has a horizontal bag lifting platform (8.3) operated by a pneumatic cylinder.

6.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim 5, characterized in that the bag lifting platform (8.3) travels vertically during operation between 0 and 10 cm.

7.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim one, characterized in that the coil lift subset (9) comprises a reducing motor (9.2) that drives the transmission bar (9.3). which coils or unwinds the straps (9.4) that hold the hooks (9.1), which support a bobbin shaft (10.1) until it is positioned in the unwinder subassembly (10).

8.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim 7, characterized

because the unwinder subset (10) comprises a structure of the unwinder (10.3) that holds the coil shaft (10.1) and an engine (10.2); further comprising a friction pulley (10.4) driven by the motor (10.2); where a reel of polyethylene film is pulled by tangential contact through the action of the friction pulley (10.4)

9.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim 8, characterized in that the motor (10.2) is fixed to an arm (10.6) that articulates on a motor support shaft (10.5); where the weight of the motor (10.2) enhances the tangential force with which the coil is pulled (10.1) by means of the friction pulley (10.4).

10.

Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to any one of the preceding claims, characterized in that the plastic bag (11) is 70 cm high and 30 cm wide, and has a first horizontal bead (11.4) of thermal welding on its lower horizontal side; and on its horizontal side greater than 12 cm, it has a second horizontal cord (11 .5) of thermal welding that forms the upper closure of the plastic bag (11).

11.-Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claim 10, characterized in that the plastic bag (11) has two "Y" folds (11 .6) (English fold) oriented towards the inside of the plastic bag, on both sides of it. 12.-Automatic bagging machine for plastic bags inside a plastic bag manufactured by the machine itself, according to claims 10 and 11, characterized in that the plastic bag (11) has two handles (11.1), each formed of they by the respective English fold (11.6) vertically located on the outer side, by a vertical dot cut (11 .2) on the inner side and by the thermal weld bead (11.5) on its upper horizontal side. 0 + --- + --- 6 o- ~ = -------- 7  FIGURE 1A (/ »- 9 FIGURE 18 fifteen / 2 2.1 2.3  FIGURE 2 3 3.4 3.1 3.3  FIGURE 3 4 4.2  FIGURE 4 5 5.1  FIGURE 5   19 6 6.2  FIGURE 6 7 7.5 7.3 7.4  FIGURE 7 8.2  FIGURE 8 9 9.4  FIGURE 9 10  FIGURE 10 11.1 11.5 11 ~  FIGURE 11A 11.2 11 11.7 11 11.2 11.5 11.6 11.4 11.2 11.2 FIGURE 12A FIGURE 12B 26  FIGURE 13   27