JP2019156437A - Horizontal type pillow packaging machine - Google Patents

Abstract

To provide a horizontal type pillow packaging machine in which a product does not deviate even in the case where a cylindrical packaging material suddenly stops while transporting the cylindrical packaging material including the product.SOLUTION: A horizontal type pillow packaging machine M1 includes: a cylinder making device for forming a belt-like packaging film Fw into a cylinder shape; a product supply device 1 for providing a product P1 to a cylindrical film Ft; a support plate 5 for supporting the cylindrical film Ft; a center seal mechanism 3 for performing vertical sealing to an overlapped end of the cylindrical film Ft; a packaging material upper side conveyance auxiliary means 6 arranged above the support plate 5 and for pushing the product P1 with the support plate 5 via the cylindrical film Ft and assisting conveyance to the downstream side; and an end seal device 4 for performing heat sealing to an end part of the cylindrical film Ft. The horizontal type pillow packaging machine also includes packaging material lower side conveyance auxiliary means 7 having a conveyor belt 70 sliding by guided by the support plate 5 and a belt guide mechanism 71 and for conveying the product P1 in a state of sandwiching the product P1 by the conveyor belt 70 and the packaging material upper side conveyance auxiliary means 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a horizontal pillow wrapping machine, and more specifically, even when the tubular film suddenly stops during conveyance of the tubular film containing the product, the product does not deviate from the tubular film. The present invention relates to a horizontal pillow packaging machine having a configuration.

  Conventionally, for example, a film which is continuously packaged from a raw roll is formed into a film-shaped packaging material (cylindrical film) which is formed into a cylindrical shape by a cylinder-making machine, and then products to be packaged sequentially. In addition to supplying the product, a vertical seal (center seal) is applied to the overlapping surfaces of both side edges of the cylindrical film enclosing the product, and a horizontal seal (end seal) is applied before and after sandwiching the product of the cylindrical film. A horizontal pillow packaging machine that manufactures a pillow packaging body BP by cutting at a predetermined position is widely known.

This horizontal pillow wrapping machine consists of a product supply device composed of a conveyor for supplying products, a raw roll for continuously feeding packaging materials, a center seal roll, an end seal device for end sealing the packaging film, etc. It is configured with various operating mechanisms.
And the product supply method by the product supply apparatus is performed by extruding a product by a plurality of pusher attachments provided at an endless chain constituting a supply conveyor and transferring it to a horizontal pillow packaging machine.

However, for some reason, the product may not be supplied to any of the plurality of pusher attachments in the supply conveyor of the product supply apparatus. If it does so, delivery delivery of the product to the cylindrical film shape | molded with the cylinder making machine will be interrupted temporarily, and what is called a missing item will be produced.
When a shortage occurs, so-called empty bags that are not filled with a product are mixed in each packaging bag continuously produced by the horizontal pillow packaging machine. Such generation of empty bags causes waste of the packaging material and disadvantages such as requiring an additional device for separating and removing the empty bag portion.

Therefore, when a shortage occurs in the product group transferred by the supply conveyor, it is necessary to take measures to prevent the occurrence of empty bags.
As a means for preventing the occurrence of empty bags, in general, a missing product is detected by a missing product detection sensor in the product group transferred at a predetermined interval by the supply conveyor, and the operation of the supply conveyor is performed based on the missing product detection signal. The operation control for temporarily stopping the operation of the film transfer mechanism and the lateral seal mechanism is performed while the operation is continued.

In this case, when the operation stop and operation start of each mechanism are repeated, inertia is generated at the time of operation stop and operation start in the packaging material transfer mechanism, and vibration is generated in each mechanism.
In particular, when the above-described empty bag prevention control is performed during high-speed operation of the packaging machine, lightweight products such as biscuits, for example, are displaced in the cylindrical film when the packaging material is stopped and started. Will occur.

Therefore, conventionally, in order to prevent such product displacement, a packaging material upper conveyance assisting means 106 as shown in FIGS. 14 and 15 has been widely used in the horizontal pillow packaging machine M5.
That is, the packaging material upper conveyance assisting means 106 is formed in a cylindrical shape by the cylinder maker 122 in the horizontal pillow packaging machine M5, and the upper surface of the cylindrical film Ft conveyed downstream with the product P stored therein. It is arranged on the side (upper side).

  The packaging material upper conveyance assisting means 106 is composed of an endless belt 161 or the like that can transfer the product P to the downstream side in a holding state via the tubular film Ft with the product conveyance support plate 105. In addition, a light product such as a biscuit supplied into the tubular film Ft can be stably transferred toward the downstream side by the conveyance assisting means 106.

First, the entire horizontal pillow packaging machine M5 will be briefly described with reference to FIG.
In this conventional example, the entire horizontal pillow wrapping machine M5 and the configuration of the packaging material upper conveyance assisting means 106 are substantially the same as the configuration of the horizontal pillow wrapping machine M1 of the first embodiment of the present invention described later. In order to distinguish between the two, a description will be given by adding a reference numeral added to the reference numeral added to the horizontal pillow packaging machine M1 or the like of the first embodiment to 100.

  The horizontal pillow wrapping machine M5 forms the strip-shaped packaging material Fw continuously drawn out from the raw fabric roll Fr into a cylindrical shape with the cylindrical machine 122 arranged downstream of the raw fabric roll Fr. On the downstream side of the film feeding device 102 that conveys the tubular film Ft that has been transported downstream, the product supply device 101 that feeds the product P into the tubular film Ft at regular intervals, and the paper drawing roller 123 that constitutes the film feeding device 102. The center seal mechanism 103 that is disposed and overlaps both ends in the width direction of the tubular film Ft to apply the center seal Se1 and the tubular film Ft that is disposed on the downstream side of the tube making device 122 and encloses the product P can be conveyed. The packaging material conveyance support plate 105 to be supported and the cylindrical film Ft that is disposed downstream of the center seal mechanism 103 and encloses the product P are adjacent to each other. And an end seal device 104 that cuts the tubular film Ft in the middle of the end seal.

  Here, the belt-like packaging material Fw fed out from the raw roll Fr is guided by a guide roller 120a, and is fed by a pair of roller members 121a and 121b that are rotated in opposite directions by driving a film feeding servo motor SM1. It is guided to the cylinder making machine 122 through the roller 121 and the guide roller 120b.

The film feeding device 102 includes the paper feeding roller 121 and a paper drawing roller 123 disposed on the downstream side of the paper feeding roller 121.
The paper drawing roller 123 includes a pair of left and right rollers 123a and 123b driven by a paper drawing servo motor SM2. Both ends of the tubular film Ft are sandwiched between the peripheral surfaces of the rollers 123a and 123b and are opposite to each other. By rotating, the tubular film Ft is pulled out and sent to the downstream side.

The center seal mechanism 103 includes a center sealer 131 and a servo motor SM3 for driving the sealer, and the center sealer 31 includes a pair of seal rollers 131a and 131b (in the direction orthogonal to the plane of FIG. 14; see FIG. 15). It is configured.
The product supply apparatus 101 is constituted by a supply conveyor provided with an endless chain 116, and pusher attachments 115 for pushing and conveying the product P are attached to the endless chain 116 at predetermined intervals.

As described above, the packaging material upper conveyance assisting means 106 is disposed above the support plate 105 and is downstream of the product P in a state where the product P is pressed by the support plate 105 via the tubular film Ft. It is the structure which assists the conveyance to. Further, as shown in FIG. 15, the support plate 105 is composed of a pair of plate members 105A and 105B.
The packaging material upper conveyance assisting unit 106 includes an endless conveyor 161 that rotates at a predetermined speed, and a plurality of pressing members 162 that are fixed to the outer periphery of the endless conveyor 161 at regular intervals. The pressing member 162 is configured by a sponge-like or brush-like member that can elastically press the product P by the support plate 105 via the tubular film Ft.

  And as shown in FIG. 15, the packaging material upper conveyance auxiliary | assistant means 106 is the state which pressed the upper surface of the product P mounted in the support plate 105 below with the press member 162 via the cylindrical film Ft. In order to prevent slack in the tubular film Ft, the rotation is controlled at a speed slightly higher than the film drawing set speed by the original fabric roller Fr so that the product P is auxiliary fed without being displaced. It is functioning.

The product P placed on the support plate 105 via the cylindrical film Ft is transferred to the downstream side as the cylindrical film Ft is transferred by the film transfer device 102.
Further, the product P is transported while being supported toward the end seal device 104 in a state of being pressed with the support plate 105 via the tubular film Ft by the packaging material upper conveyance assisting means 106, thereby Misalignment of the product P in the holding and transfer area between the material upper conveyance assisting means 106 and the support plate 105 is prevented.
The cylindrical film Ft transferred to the end seal device 104 is subjected to horizontal seal construction and cutting before and after the product P is sandwiched between the pair of upper and lower heater blocks 141a and 141b constituting the end seal device 104. Thereby, the pillow package BP is obtained.

  There is also known a horizontal pillow packaging machine provided with a packaging material upper conveyance assisting unit having substantially the same configuration as the packaging material upper conveyance assisting unit 106 described above (see, for example, Patent Document 1).

JP 2001-199403 A

However, in the horizontal pillow packaging machine disclosed in Patent Document 1 and the conventional horizontal pillow packaging machine disclosed in FIG. 14 and the like, the product P contained in the cylindrical film Ft is passed through the cylindrical film Ft. It is supposed to be transported downstream while being sandwiched between the pressing member 162 of the packaging material upper transport assisting means 106 and the support plate 105. For example, when the empty bag prevention function is activated and the transport suddenly stops. There is a problem that product deviation occurs when transport is resumed.
That is, the upper surface of the product P is in a state of being pressed by the pressing member 162 of the conveyance assisting means 106, but the lower surface of the product P is placed on the support plate 105 and is in a slippery state.
For this reason, when the conveyance suddenly stops, the product P moves forward in the tubular film Ft due to inertia, and thus a displacement occurs. Further, when the conveyance is resumed, the product P is left in the tubular film Ft due to inertia, and a positional deviation occurs.
As a result, there is a possibility that the product protrudes from the preset bag portion. When the product protrudes, the end seal cannot be completely applied by the end seal device 104, and an incomplete pillow package BP is manufactured. The problem arises.

  The object of the present invention is proposed in order to solve the above-mentioned problems, and the object is that the cylindrical packaging material is suddenly stopped during the transportation of the cylindrical packaging material containing the product. Etc. is to provide a horizontal pillow packaging machine in which the product does not deviate from the cylindrical film.

In order to solve the above-mentioned problems, the horizontal pillow packaging machine of the present invention has a cylindrical machine for forming a strip-shaped packaging material continuously fed from a raw roll into a cylindrical shape, and a product is fixed to the cylindrical packaging material. A product supply device that sequentially supplies at intervals; a packaging material transport support plate that is disposed downstream of the cylinder making device and supports the cylindrical packaging material containing the product so as to be transportable; and the packaging material transport support plate A center seal mechanism that is provided on the lower surface side of the cylindrical packaging material and applies a vertical seal to the overlapping end of the cylindrical packaging material, and is disposed on the upper surface side of the packaging material transporting support plate and through the cylindrical packaging material. A packaging material upper conveyance assisting means for assisting conveyance of the product downstream while the product is pressed by the packaging material conveyance support plate; and the cylindrical packaging material disposed on the downstream side of the center seal mechanism Flow of A end sealing apparatus for applying a heat seal by sandwiching the ends of the direction, in horizontal pillow packaging machine equipped with,
A conveyor belt that is guided and slid by the packaging material conveyance support plate and a belt guide mechanism disposed on a lower surface side of the packaging material conveyance support plate; and the conveyor belt and the packaging material upper conveyance auxiliary means And a packaging material lower conveyance assisting means for assisting conveyance of the product to the downstream side in a state where the product is sandwiched via the cylindrical packaging material.

The horizontal pillow packaging machine according to the present invention is configured as described above, and the product accommodated in the cylindrical packaging material is connected to the packaging material upper conveyance assisting means and the packaging material lower side through the cylindrical packaging material. Since it is transported on the packaging material transport support plate in a state of being sandwiched between transport assisting means, even if the cylindrical packaging material is suddenly stopped during transportation of the cylindrical packaging material, the product is subject to inertia. The product does not move forward, and the product is not left behind due to inertia even when the cylindrical packaging material is suddenly started by restarting operation.
As a result, the product can be prevented from shifting with respect to the tubular film, the end seal by the end seal device can be completely applied, and a normal pillow package can be manufactured.

1 is an overall side view showing a first embodiment of a horizontal pillow packaging machine according to the present invention. It is a top view of the state which omitted the packaging material upper side conveyance auxiliary | assistance means with the horizontal pillow packaging machine of FIG. It is an expanded sectional view of the part along the III-III line in FIG. It is a top view which shows the back surface vicinity of the packaging material conveyance support plate of the horizontal pillow packaging machine of the said 1st Embodiment. FIG. 5 is a view taken in the direction of arrow V in FIG. 4. 6A is a view taken in the direction of arrow VI in FIG. 4, and FIG. 6B is a cross-sectional view taken along line BB in FIG. It is a side view which shows the whole conveyor attachment / detachment mechanism which comprises the lower side conveyance auxiliary | assistant means of the horizontal pillow packaging machine of the said 1st Embodiment. 7 shows details of the conveyor attaching / detaching mechanism, FIG. 7 (A) is an overall front view of the attaching / detaching mechanism, and FIG. 7 (B) is an operation diagram showing a state in which the near-side swing member swings. It is a top view which shows the boundary part vicinity of the lower side conveyance auxiliary | assistance means and intermediate conveyor of the horizontal pillow packaging machine of the said 1st Embodiment. FIG. 10A is a configuration diagram of the intermediate conveyor and the product carry-out conveyor of the horizontal pillow packaging machine of the first embodiment, and FIG. 10A is an operation of the intermediate conveyor and the product carry-out conveyor when the pair of heater blocks of the end seal device are separated. FIG. 10B is an operation diagram showing an operation state of the intermediate conveyor and the product carry-out conveyor when the pair of heater blocks of the end seal device contact each other. It is a whole side view which shows 2nd Embodiment of the horizontal pillow packaging machine which concerns on this invention. It is a whole side view which shows 3rd Embodiment of the horizontal pillow packaging machine which concerns on this invention. FIG. 13A is a schematic side view showing a modified form of the packaging material upper conveyance assisting means of the horizontal pillow packaging machine according to the present invention, in which FIG. B) is a schematic side view showing a state in which the end seal device side tip of the packaging material upper conveyance assist means has advanced. It is a whole side view which shows the conventional horizontal pillow packaging machine. It is an expanded sectional view of the part along the XV-XV line in FIG.

Below, 1st Embodiment of the horizontal pillow packaging machine which concerns on this invention with reference to drawings is described.
1 and 2 disclose the entire horizontal pillow packaging machine (hereinafter simply referred to as a packaging machine) M1 of the first embodiment. The horizontal pillow wrapping machines M2 and M3 of the following second and third embodiments including the first embodiment are all normal pillow type horizontal pillow wrapping machines.

  The packaging machine M1 forms a strip-shaped packaging material (strip-shaped film) Fw continuously drawn out from the raw fabric roll Fr into a cylindrical shape by a cylinder making device 22 arranged on the downstream side of the raw fabric roll Fr. A film feeding device 2 that conveys a tubular packaging material (tubular film) Ft formed in a tubular shape to the downstream side, and a product supply device 1 that feeds a product P, which is a packaged product, to the tubular film Ft at regular intervals. And a packaging material conveyance support plate (hereinafter simply referred to as a support plate) 5 that is disposed downstream of the cylinder making device 22 and supports the cylindrical film Ft containing the product P so as to be conveyed.

  On the lower surface side of the support plate 5, a paper drawing roller 23 constituting the film feeding device 2, and a center seal mechanism 3 for constructing a vertical seal at the polymerization end of the tubular film Ft downstream thereof are arranged. Further, on the downstream side of the center seal mechanism 3, an end seal Se2 (see FIG. 2) is provided in a direction crossing the cylindrical film Ft in which two products P1 are stacked and housed inside at a position between the adjacent products P and P. An end seal device 4 is provided that cuts the tubular film Ft in the middle of the end seal Se2 to form the pillow package Bp.

  Above the support plate 5, packaging material upper conveyance assisting means 6 for assisting the conveyance of the product P to the downstream side in a state where the product P is pressed by the support plate 5 via the tubular film Ft is disposed. ing.

  Further, with respect to the packaging material upper conveyance assisting means 6, the cylindrical film Ft is sandwiched between the lower surface side of the support plate 5 and the packaging material upper conveyance assisting means 6 via the tubular film Ft. A packaging material lower conveyance assisting means 7 for assisting the conveyance of the product P to the downstream side in a state where the product P is sandwiched is provided.

The packaging material lower conveyance assisting means 7 is provided with an endless conveyor belt 70, which includes a plurality of guide rollers 72 a disposed below the support plate 5 from the upper surface of the support plate 5. It is guided and slid by a belt guide mechanism 71 composed of 72a, 73a and 73b.
As shown in FIG. 2, the conveyor belt 70 includes conveyor belts 70 </ b> A and 70 </ b> B arranged corresponding to a pair of plate members 5 </ b> A and 5 </ b> B that constitute the support plate 5.
And the packaging material lower side conveyance auxiliary means 7 is the downstream side of the said product P in the state which pinched | interposed the product P via the cylindrical film Ft by the said conveyor belts 70A and 70B and the packaging material upper side conveyance auxiliary means 6. It has a function to assist the transport to.

The product supply device 1, the film feeding device 2, the center seal mechanism 3 and the end seal device 4 are separately driven by servo motors, as will be described later, and a control device 8 is provided for each of these devices 1, 2, 4 Are operated in synchronization with each other while maintaining a predetermined phase difference. Further, the control device 8 is synchronously controlled so that the packaging material upper transport assisting means 6 and the packaging material lower transport assisting means 7 are driven at substantially the same speed to assist the transfer of the product P in the tubular film Ft. ing.
By such drive control, vertical and horizontal seals are applied to the belt-like packaging material Fw on which the printed pattern is repeatedly applied in the feeding direction corresponding to the bag to be manufactured, and the printed pattern is positioned at the correct position on the bag. A pillow package BP is manufactured in which a bag is produced so as to appear, and the product P is stored in the produced bag.

The film feeding apparatus 2 includes a paper feeding roller 21 driven by a film feeding servomotor SM1, and a paper drawing roller 23 disposed on the downstream side of the paper feeding roller 21 and the cylinder making device 22. . The paper feed roller 21 is composed of a pair of roller members 21a and 21b that rotate in opposite directions to feed the band-shaped packaging material Fw downstream.
And by this film feeder 2, the strip | belt-shaped packaging material Fw drawn | fed out from the original fabric roll Fr is sent to a downstream. Further, the fed strip-shaped packaging material Fw is formed into a substantially cylindrical shape by the cylinder making device 22 as described above.

Here, the strip-shaped packaging film Fw fed out from the raw roll Fr is guided to the pair of roller members 21a and 21b via the guide roller 20a, and the strip-shaped packaging film Fw fed out from these roller members 21a and 21b is The guide roller 20b is guided to the cylinder making machine 22.
An encoder 25 that detects the number of rotations in contact with the guide roller 20b and detects the feed speed of the belt-shaped packaging film Fw is disposed outside the guide roller 20b in the radial direction.

  The paper drawing roller 23 includes a pair of left and right rollers 23a and 23b (see FIG. 2) driven by a paper drawing servo motor SM2, and a cylindrical film Ft is formed between the peripheral surfaces of the rollers 23a and 23b. The cylindrical film Ft is pulled out and sent to the downstream side by sandwiching both ends and rotating in reverse.

The center seal mechanism 3 is disposed on the downstream side of the paper drawing roller 23. The center seal mechanism 3 is fed from the cylinder making device 22 and overlaps both ends in the width direction of the cylindrical film Ft. By applying the center seal (vertical seal) Se1 (see FIG. 3), the tubular film Ft is formed in a bag shape.
The center seal mechanism 3 includes a center sealer 31 and a sealer servomotor SM2C. The center sealer 31 includes a pair of left and right seal rollers 31a and 31b (see FIG. 2) driven by the sealer servomotor SM3. It is configured.
While the pair of seal rollers 31a and 31b rotate in the opposite directions, a center seal Se1 is applied by sandwiching both side edges of the tubular film Ft between the peripheral surfaces of the seal rollers 31a and 31b, and the center seal Se1 is applied. The bag-shaped cylindrical film Ft is conveyed downstream.

The product supply apparatus 1 includes a supply conveyor having an endless chain 16, and pusher attachments 15 that push and convey the rear part of the product P are attached to the endless chain 16 at a predetermined interval.
The endless chain 16 is wound around sprockets 17 and 17 disposed at front and rear ends in the conveying direction, and the rotation output of a supply conveyor drive servomotor (not shown) is transmitted to one of the sprockets 17 via a power transmission mechanism. Thus, the sprocket 17 is driven to rotate.
In the product supply apparatus 1, the pusher attachment 15 conveys the product P while pushing it, and feeds the product P into the product delivery position below the cylinder making device 22.

The support plate 5 is fixedly attached to a mounting member (not shown) protruding from the machine body of the packaging machine M1 to the support plate 5 side by screwing or the like from the surface of the support plate 5, and the support plate 5 is As shown in FIG. 4, it is composed of one and the other pair of plate members 5A and 5B arranged on the left and right along the conveying direction of the tubular film Ft.
As shown in FIG. 4, the pair of plate members 5 </ b> A and 5 </ b> B are each formed of a thin plate, and are disposed on the left and right sides with a gap of a dimension L secured. The gap L is set to a dimension that allows the end portions to be inserted when the end portions where the tubular films Ft overlap each other are subjected to vertical seal construction.

Each of the pair of plate members 5A and 5B is formed in a substantially rectangular shape that is long in the transport direction, and three of the outer circumferences thereof are bent inward.
A cooling mechanism 50 that cools the plate members 5A and 5B is provided at approximately half of the pair of plate members 5A and 5B in the width direction.
That is, the cooling mechanism 50 is provided on the back surface of each of the pair of plate members 5A and 5B and on a part of the side with the gap L for the center seal that is substantially half in the width direction.

  Each cooling mechanism 50 is fixed to the back surface of each plate member 5A, 5B by welding and covers the intermediate plate 51 with an intermediate plate 51 formed with a groove 51a serving as a cooling space partially sealed, and The cover plate 52 includes the groove 51a as a cooling space when the intermediate plate 51 is covered, and the cooling medium W (see FIG. 6B) flowing into the groove 51a.

As shown in FIG. 4, the groove 51a is formed in a substantially U shape that is elongated in the conveying direction of the tubular film Ft. The groove 51a is formed by cutting the intermediate plate 51 into a substantially U shape. . Therefore, when the back cover plate 52 is covered and fixed to the intermediate plate 51, the groove 51a constitutes a cooling sealed space.
Then, as shown in FIG. 6B, the cooling medium W flows into the groove 51a, whereby the back surfaces of the plate members 5A and 5B that are in contact with the groove 51a, and eventually The entire plate members 5A and 5B are cooled.
The substantially U-shaped groove 51 a has a length corresponding to the range from the paper drawing roller 23 to the center sealer 31.

As shown in FIGS. 4 to 6, in order to allow the cooling medium W to flow into the groove 51a, the medium supply sill 53 and the medium discharge sill 54 are fixed to the back cover plate 52 by welding.
Each of these nozzles 53 and 54 is provided at an end portion on the substantially U-shaped opening side, and, for example, a medium supply nozzle 53 is disposed on the side closer to the gap L side shown in FIG. A medium discharge nozzle 54 is arranged on the front side.
A medium supply hose 53a and a medium discharge hose 54a are connected to the nozzles 53 and 54, respectively.

Here, the temperature of the pair of plate members 5A and 5B during the operation of the machine is generated by the rotational driving of the paper drawing roller 23, the rotational driving when the center seal Se1 is applied by the center sealer 31 of the center seal mechanism 3, or the like. For example, since the angle reaches 100 to 150 °, there is a concern that a pair of conveyor members 70A and 70B described later may be adversely affected.
Therefore, as described above, by sending the cooling water into the cooling sealed space, it is possible to cool the pair of plate members 5A and 5B located in the cooling sealed space, in particular. As a result, it is possible to eliminate an adverse effect from high heat exerted on the pair of conveyor members 70A and 70B wound around the pair of plate members 5A and 5B.

Further, as the cooling medium W, cooling water is used in the first embodiment. The cooling water is supplied from the medium supply nozzle 53 and discharged from the medium discharge nozzle 54 as shown in FIG. 6B. As a result, it is possible to cool the portions of the pair of plate members 5A and 5B, particularly those covered with the intermediate plate 51 and the back cover plate 52, by flowing cooling water into the sealed space.
In the first embodiment, an example in which the cooling medium W is the cooling water has been described. However, the present invention is not limited thereto, and compressed air may be used as the cooling medium W.
5 and 6, the guide rollers 72a and 72b and the roller support member 75 in FIG. 4 are omitted.

  As described above, the packaging material upper transport assisting means 6 sandwiches the product P between the packaging material upper transport assisting means 6, the support plate 5, and the packaging material lower transport assisting means 7 through the tubular film Ft. In this state, the product P plays a role of assisting conveyance while preventing the positional deviation smoothly and downstream.

The packaging material upper conveyance assisting means 6 includes an endless conveyor 61 that is wound around a sprocket 63 and rotates at a predetermined speed, and a plurality of pressing members 62 that are fixed to the outer periphery of the endless conveyor 61 at regular intervals. Has been.
The pressing member 62 is configured by a sponge-like or brush-like member that can be sandwiched while elastically pressing the product P by the support plate 5 and the packaging material lower conveyance assisting means 7 through the tubular film Ft. Has been.

And as shown in FIG. 3, the packaging material upper conveyance auxiliary | assistant means 6 is the state which pressed the upper surface of the product P currently supported by the support plate 5 downward with the press member 62 via the cylindrical film Ft, In order to prevent slack in the tubular film Ft, the rotation is controlled at a speed slightly higher than the film drawing set speed by the original fabric roller Fr, and the function is such that the product P is auxiliary fed without being displaced. To do.
Note that the packaging material upper conveyance assisting means 6 has a terminal block for holding and transferring the product P in a pressed state by the pressing member 62, the support plate 5 and the packaging material lower conveyance assisting means 7, and the heater block of the end seal device 4. It extends to a position outside the operating region where it does not interfere with contact when 41a and 41b rotate (outside the rotation trajectory of the heater blocks 41a and 41b).

The product P placed on the support plate 5 via the cylindrical film Ft is transferred to the downstream side as the cylindrical film Ft is transferred by the film feeder 2.
In addition, the product P is maintained on the support plate 5 via the tubular film Ft, and is maintained between the packaging material upper conveyance assisting means 6 and the packaging material lower conveyance assisting means 7 to maintain the end seal mechanism. 4 is transferred in an auxiliary manner to the position 4, thereby preventing displacement of the product P in the holding transfer area.
The cylindrical film Ft transferred to the end seal mechanism 4 is heat-sealed one by one before and after the product P is sandwiched between the pair of upper and lower heater blocks 41a and 41b, and is cut and the pillow package BP Is to be formed.

A missing part detection sensor (not shown) is disposed in the vicinity of the product supply apparatus 1 and constantly monitors the presence or absence of the product P that sequentially passes through the detection region. A missing part detection signal from the missing part detection sensor Is input to the control device 8, an operation stop signal is issued from the control device 8, and the operations of the film feeding device 2 and the end seal device 4 are performed in accordance with the timing at which the product P should be delivered to the tubular film Ft. Paused.
Then, when the shortage detection signal from the shortage detection sensor is not input to the control device 8 after the next cycle, an operation start signal is issued from the control device 8, and the film feeding device 2 and the end seal device 4 are activated. Is started, so that the generation of empty bags is prevented.

As shown in FIGS. 1 and 2, the packaging material lower conveyance assisting means 7 includes an endless conveyor belt 70, and the conveyor belt 70 includes a pair of conveyor members 70A and 70B. The pair of conveyor members 70A and 70B are guided by a plurality of guide rollers 72a, 72b, 73a and 73b constituting the support plate 5 and a belt guide mechanism 71 disposed below the support plate 5. It comes to slide.
Then, as shown in FIG. 3, the packaging material lower conveyance assisting means 7 sandwiches the product P with the packaging material upper conveyance assisting means 6 via the tubular film Ft, and downstream of the product P. It is comprised so that conveyance to the side may be assisted.

As described above, the packaging material lower conveyance assisting means 7 includes the conveyor belt 70 including a pair of conveyor members 70A and 70B. As shown in FIG. 4, the conveyor members 70A and 70B include the pair of conveyor members 70A and 70B. It arrange | positions corresponding to plate member 5A, 5B.
As shown in FIG. 7, each of the conveyor members 70A and 70B includes small-diameter belt guide rollers 72a and 72b disposed at both ends in the longitudinal direction of the support plate 5, and large-diameter belt guide rollers disposed below them. 73a and 73b, and a tension guide roller 74 is disposed between the large-diameter belt guide rollers 73a and 73bd.
Here, the belt guide roller 73b is a driving guide roller, and is rotatably connected to a servo motor (not shown) disposed on the back side of the belt guide roller 73a by a belt.
One sprocket 63 of the packaging material upper conveyance assisting means 6 is also connected to the servo motor by a belt so as to be rotatable.

As shown in FIGS. 4 and 7, the small-diameter belt guide rollers 72a and 72b are rotatably supported at both ends by a U-shaped roller support member 75 in plan view. The roller support member 75 is a plate member 5A. , 5B are fixed to both ends in the conveying direction.
One end of the large-diameter belt guide roller 73b is rotatably supported by the machine main body on the back side of the sheet of FIG. 7, and the other end is rotated by a fixing member 77 on the near side in the direction orthogonal to the sheet of FIG. It is supported freely.

The fixing member 77 is a component of the belt attaching / detaching mechanism 76 that allows the pair of conveyor members 70A and 70B to be attached to and detached from the pair of plate members 5A and 5B.
The fixing member 77 is formed in a substantially L shape as shown in FIG. 8B, and the other end of a stay 78 having a rectangular cross section is attached to a part of the fixing member 77 by a bolt 79. Is fixed to the machine body. As a result, the fixing member 77 and the machine main body are integrally connected.

The stay 78 and the fixing member 77 are attached by the bolts 79 as described above. However, the fixing member 77 can swing within a predetermined range in the conveying direction of the tubular film Ft with respect to the stay 78. .
That is, the fixing member 77 is formed with an arc-shaped elongated hole 77a having a predetermined length with the axial center of the large-diameter belt guide roller 73b as a base point. Therefore, if the left and right bolts 79 are loosened, the fixing member 77 can be swung left and right within the range of the arc-shaped elongated hole 77a with the shaft center as a base point, and if the bolt 79 is tightened at a desired position. Good.
As a result, the tension of the tension guide roller 74 can be finely adjusted.

An engaging portion 77 b that is recessed in a substantially mountain shape is formed on the lower surface of the other side of the fixing member 77. The engaging portion 77b is adapted to engage with a convex engaging portion 80b formed on the near-side swing member 80.
As described above, the front-side swing member 80 is swingable with the axis of the belt guide roller 73b supported by the fixing member 77 as a base point.
Further, the front side swinging member 80 is connected to the back side swinging member 82 via a connecting bar 81 as shown in FIGS.
As described above, the convex engaging portion 80 b is formed on the upper surface of the front-side swinging member 80, and the convex engaging portion 80 b is connected to the concave engaging portion 77 b of the fixing member 77. It is designed to engage.

One end (the right side in FIGS. 7 and 8) of the back-side swing member 82 is rotatably attached to the machine main body side end of the belt guide roller 73b.
Accordingly, the front side swinging member 80 rotates integrally with the back side swinging member 82 from the state shown in FIG. 8A to the state shown in FIG. 8B with the shaft center of the belt guide roller 73b as a base point. Can move.

  The fixing member 77 and the near-side swinging member 80 are connected by a fixing bracket 84 that can connect or release both the members 77 and 80 in a normal state, that is, when the conveyor belt is not removed. ing. The fixing bracket 84 is provided in the vicinity of the other end of the fixing member 77 and the near-side swinging member 80.

  As the fixing bracket 84, for example, a clasp such as a patchon lock is used. Although not shown in detail, the fixing member 84 is provided on the fixing member 77 with respect to the hooking portion 84a provided on the front swinging member 80 side. And a receiving portion 84b that can be hooked on or removed from the hooking portion 84a.

  Therefore, when the hooking portion 84a of the front-side swinging member 80 is removed from the receiving portion 84b of the fixing member 77 in the state of FIG. 8A, the front-side swinging member 80, the back-side swinging member 82, etc. As shown by an arrow A in FIG. 8 (B), the weight of the belt rotates approximately 90 degrees with the axis of the belt guide roller 73b as a base point.

At this time, a gap S having a dimension L <b> 1 is generated between one side surface of the near-side swinging member 80 and the lower end portion of the fixing member 77. The pair of conveyor members 70A and 70B is removed using the gap S.
When the conveyor members 70A and 70B are removed as shown in FIG. 8B, the conveyor members 70A and 70B are disengaged from the tension guide roller 74 and become substantially horizontal via the belt guide roller 73b. It is stretched.
The conveyor members 70A and 70B in this state can be removed by removing them from the outer periphery of the belt guide roller 73b and straddling the lower part of the fixing member 77.

The belt attaching / detaching mechanism 76 is constituted by the fixing member 77, the front side swinging member 80, the back side swinging member 82, the fixing bracket 84, and the like.
As shown in FIG. 7, the belt attaching / detaching mechanism 76 is disposed below the center seal unit 30 including the paper drawing roller 23, the center sealer 31, and the like.

As shown in FIGS. 7, 8A, and 8B, the tension guide roller 74 is stretched across the front-side rocking member 80 and the back-side rocking member 82. One end portion is inserted into a long hole 80a formed in the near-side swinging member 80, and is fixed with a bolt 83 at an arbitrary position within the range.
The tension guide roller 74 can be moved in the direction along the long hole 80a within the range of the long hole 80a by a position adjusting member (not shown) provided on the front side swinging member 80. Therefore, the tension of the conveyor members 70A and 70B hung around the tension guide roller 74 can be adjusted.

  After the conveyor members 70A and 70B are removed, the sealant and the like attached to the opposing surfaces of the pair of support plates 5A and 5B and the vicinity thereof are removed, the pair of rollers 23a and 23b of the paper drawing roller 23, and the center seal The surface of the pair of 31 rollers 31a and 31b is cleaned to prepare for the next bag making operation.

  On the other hand, when starting the next bag making operation, the conveyor members 70A and 70B are respectively attached to the pair of support plates 5A and 5B by the operation reverse to the removal of the conveyor members 70A and 70B described above. From the state of B), the front side swinging member 80 and the back side swinging member 82 are brought closer to the fixing member 77 side and the engaging portions 77b, 80b are engaged with each other, and then the hooking portion 84a of the fixing bracket 84 is placed. And the receiving portion 84b are engaged with each other, and the near-side swinging member 80 and the fixing member 77 are connected.

  Returning to FIGS. 1 and 2, the packaging material lower conveyance auxiliary means 7 and the end seal device 4 are sandwiched between the packaging material lower conveyance auxiliary means 7 and the packaging material upper conveyance auxiliary means 6. An intermediate conveyor 9 is provided for transferring the product P conveyed by the packaging material lower conveyance assisting means 7 from the packaging material lower conveyance auxiliary means 7 to the end seal device 4. The carry-out conveyor 10 for transferring the pillow package BP that has been end-sealed and cut to a predetermined place is disposed.

  In the present embodiment, the intermediate conveyor 9 and the carry-out conveyor 10 have the moving rollers A and F that rotatably support the conveyors 9 and 10 respectively follow the opening and closing operations of the pair of upper and lower heater blocks 41 a and 41 b of the end seal device 4. Thus, an expansion / contraction structure configured to approach or separate from the heater blocks 41a and 41b is used.

As shown in FIG. 10, the telescopic intermediate conveyor 9 and the carry-out conveyor 10 follow the movement of the pair of upper and lower heater blocks 41a and 41b of the end seal device 4, and the belt 90 of the intermediate conveyor 9 and the carry-out conveyor. The ten belts 100 have a telescopic structure that moves in the transport direction.
That is, as shown in FIGS. 10A and 10B, following the movement of the pair of heater blocks 41a and 41b, the moving rollers A and F of the intermediate conveyor 9 and the carry-out conveyor 10 reciprocate in the left-right direction. Is configured to move.

  FIG. 10 (A) shows a state in which the pair of heater blocks 41a and 41b start to move toward each other in order to construct an end seal on the bag-shaped tubular film Ft. In FIG. 10 (B), The pair of heater blocks 41a and 41b are in contact with each other and end seals are applied to the bag body.

10A, the guide rolls E and J and the moving rolls A and F of the intermediate conveyor 9 and the carry-out conveyor 10 move by a dimension m in the direction away from each other, and the moving rolls as shown in FIG. 10B. A pair of heater blocks 41a and 41b can enter between A and F.
After the end seal is applied in FIG. 10B, when the pair of heater blocks 41a and 41b are moved in a vertical direction with respect to each other, the guide rolls E and J and the moving roll A of the intermediate conveyor 9 and the carry-out conveyor 10 are moved. , F move by a dimension m in a direction approaching each other, and operate so as to be in the state of FIG.

The telescopic intermediate conveyor 9 and the carry-out conveyor 10 are paired and have the same configuration except that they are arranged opposite to each other.
The intermediate conveyor 9 and the carry-out conveyor 10 are respectively a plurality of three or more rollers inscribed with respect to the belts 90 and 100, that is, the moving roller A and the fixed rollers B, C, and D of the intermediate conveyor 9 and the carry-out conveyor 10. The moving roller F and the fixed rollers G, H, and I, and at least one roller circumscribing the belts 90 and 100, that is, the moving roller E of the intermediate conveyor 9 and the moving roller J of the carry-out conveyor 10 are configured. Yes.

  In the intermediate conveyor 9, one circumscribed moving roller E and one inscribed moving roller A engaged with the belt 90 move in the same direction, and in the carry-out conveyor 10, 1 engaged with the belt 100. The moving lengths of the moving rollers A and F are variable by moving one circumscribed moving roller J and one inscribed moving roller F in the same direction.

Next, an outline of a telescopic structure that enables the above operation will be described.
The moving roller A and the guide roller E in the intermediate conveyor 9 are attached to the same moving roller mounting plate 91 indicated by a virtual line. A cam member 92 (shown by an imaginary line) in which a cam groove (not shown) is formed is connected to the moving roller mounting plate 91 via a connecting member 93.
The connecting member 93 is provided with a cam follower (not shown) that moves along the cam groove.
The cam member 92 is fixedly attached to an elevator block (not shown) (not shown), and a lower heater block 41b is attached to the elevator block.

On the other hand, the moving roller F and the guide roller J in the carry-out conveyor 10 are attached to the same moving roller mounting plate 101 indicated by a virtual line. A cam member 102 (shown by an imaginary line) having a cam groove (not shown) is connected to the moving roller mounting plate 101 via a connecting member 103.
The connecting member 103 is provided with a cam follower (not shown) that moves along the cam groove. The cam member 102 is fixedly attached to a lifting block (not shown) (not shown), and a lower heater block 41b is attached to the lifting block.

Therefore, the intermediate conveyor 9 and the carry-out conveyor 10 can operate following the opening / closing operation and the horizontal operation of the pair of heater blocks 41a, 41b of the end seal device 4.
In addition, although the structure of the moving roller attachment plates 91 and 101 in the intermediate conveyor 9 and the carry-out conveyor 10 is different, it has the same structure.

  The expansion / contraction structure of the intermediate conveyor 9 and the carry-out conveyor 10 described above is substantially the same as the structure disclosed in the “horizontal packaging machine for easy cleaning of heater blocks; Japanese Patent Application Laid-Open No. 2012-188155” filed by the present applicant. Since it is the same, detailed description is abbreviate | omitted.

Next, the overall operation of the packaging machine M1 will be described.
When the packaging machine M1 is operated, the control device 8 exchanges information with a storage device, an operation / display unit or a notification device (not shown) individually or between each other.
When the pillow packaging body BP is to be manufactured using the packaging machine M, the basic setting values such as the length of the bag to be manufactured by inputting from the operation / display unit are set in the machine, and the film feeding device 2, The phase difference between the end seal device 4 and the product supply device 1 is adjusted.

The control device 8 also operates the empty bag prevention function in response to the detection of the interruption of the supply of the product P to prevent the occurrence of empty bags. In the end seal device 4, the upper and lower heater blocks When 41a, 41b stops at the engagement end position with respect to the packaging film Ft, control to open and retreat up and down, control to continuously move back and forth, and control to resume operation of the packaging machine M thereafter are performed. .
Further, the control device 8 controls so that the feeding speeds of the packaging material upper transport assisting means 6 and the packaging material lower transport assisting means 7 are substantially the same. However, the feeding speeds of the both 6 and 7 may be sent at slightly different speeds even if they are not necessarily strictly synchronized.

According to the horizontal pillow packaging machine M configured as described above, the following effects can be obtained.
(1) The product P accommodated inside the tubular film Ft is sandwiched between the pressing member 62 of the packaging material upper transport assisting means 6 and the conveyor belt 70 of the packaging material lower transport assisting means 7. It is conveyed on the support plate 5 downstream in the conveying direction. As a result, the product P1 is prevented from jumping out or left behind due to inertia even when the conveyance is suddenly stopped, such as when an empty bag prevention function is activated, or when the roll is resumed, thereby preventing misalignment. The end seal by the end seal device can be completely applied, and a normal pillow package can be manufactured.

(2) Since the moving speed of the pressing member 62 of the packaging material upper transport assisting means 6 and the rotation speed of the conveyor belt 70 of the packaging material lower transport assisting means 7 are synchronized, the pressing member 62 and the conveyor belt 70 Thus, even when the product P1 is sandwiched in a stacked state via the tubular film Ft, the product P1 can be conveyed without breaking the posture.

(3) The support plate 5 is composed of a pair of support plates 5A and 5B arranged with a gap L, and the conveyor belt 70 of the packaging material lower conveyance auxiliary means 7 is composed of a pair of conveyor members 70A and 70B. Since the conveyor members 70A and 70B correspond to the support plates 5A and 5B, both the overlapping portions of the cylindrical film Ft can be easily inserted through the gap L, and the cylindrical film Ft Center seal Se1 can be easily applied to both ends to be polymerized.

(4) A cooling mechanism 50 is provided on the back surface of each of the pair of plate members 5A and 5B constituting the support plate 5, and the intermediate plate 51 and the cover plate plate 52 constituting the cooling mechanism 50 are provided with the paper drawing roller. 23 and the center seal mechanism 3 are provided over a distance that covers the space between the seal roller members 31a and 31b of the center seal mechanism 3, and the plate members 5A and 5B at that portion can be cooled. As a result, adverse effects from the heat generated by the rotation drive of the paper drawing roller 23 and the rotation of the center sealer 31 of the center seal mechanism 3 generated in the pair of conveyor members 70A and 70B wound around the plate members 5A and 5B. Can be prevented.

(5) The cooling mechanism 50 includes an intermediate plate 51 and a lid plate plate 52 that covers the intermediate plate 51, and a cooling groove 51a that allows a cooling medium to flow in is formed by cutting out the intermediate plate 51. The cooling mechanism 50 having a simple configuration and easy manufacture can be obtained.

(6) The pair of conveyor members 70A and 70B is removed between the fixed member 77 provided on the large-diameter guide roller 73b and the near-side swinging member 80 that can swing around the axis of the guide roller 73b. When the fixing member 84 is removed and the front-side swinging member 80 is swung, a gap L1 is generated between the two members 77 and 80. Therefore, the gap L1 can be used for removal. Work is easy.

(7) The fixing member 77 is formed with an arc-shaped elongated hole 77a having a predetermined length with the shaft center of the large-diameter belt guide roller 73b as a base point. If the left and right bolts 79 are loosened, the shaft The fixing member 77 can be swung left and right within the range of the arc-shaped elongated hole 77a with the center as a base point, and the bolt 79 may be tightened at a desired position. As a result, the tension of the tension guide roller 74 can be finely adjusted.

(8) The intermediate conveyor 9 and the carry-out conveyor 10 have a telescopic structure, and the movement roller A of the intermediate conveyor 9 and the movement roller F of the carry-out conveyor 10 follow each other by following the movement of the pair of heaters 41a and 41b. It can move in the approach and separation directions. Thereby, the transfer of the product P1 from the belt 90 of the intermediate conveyor 9 to the end seal device 4 and the transfer of the product P from the end seal device 4 to the belt 91 of the carry-out conveyor 10 are performed in the best condition. The transfer of the product P1 becomes stable.

Next, with reference to FIG. 11, 2nd Embodiment of the horizontal pillow packaging machine of this invention is described.
In the horizontal pillow packaging machine M1 of the first embodiment, the packaging material lower conveyance assisting means 7 and the intermediate conveyor 9 and the discharge conveyor 10 having a telescopic structure disposed downstream thereof are provided. In the horizontal pillow wrapping machine M2 of the second embodiment, an intermediate conveyor is not provided, but the packaging material lower conveyance assisting means 7A and a discharge conveyor 10 disposed downstream thereof are provided. .

  In the horizontal pillow packaging machine M2 of the second embodiment, the intermediate conveyor is omitted, but the length of the support plate 5 of the first embodiment is extended to the end seal device 4 side. The plate 5-1, and the support belt 5-1, the conveyor belt 70-1 consisting of a pair of conveyor members 70-1A and 70-1B was hung to try to fulfill the role of the omitted intermediate conveyor. Is.

That is, in the second embodiment, the guide roller 72b of the packaging material lower conveyance assisting means 7 of the first embodiment is set to 72b1 arranged at a position close to the end sealer device 4, and the conveyor belt 70-1 is The guide roller 72b is hung around.
Further, the support plate 5-1 is composed of a pair of plate members 5-1A and 5-1B as in the first embodiment, and the conveyor belt 70-1 is composed of the pair of plate members 5 described above. Corresponding to -1A and 5-1B, it is composed of a pair of belt members 70-1A and 70-1B.
Further, although not shown, the pair of plate members 5-1A and 5-1B is provided with the cooling mechanism 50 similarly to the pair of plate members 5A and 5B of the first embodiment.

In the second embodiment, the guide roller 72b of the packaging material lower conveyance assisting means 7 of the first embodiment is the guide roller 72b1 disposed at a position close to the end sealer device 4 as described above, and the intermediate roller Since the conveyor 9 is omitted, and the other configurations are the same as those of the first embodiment, the same reference numerals are given, and detailed description thereof is omitted.
The carry-out conveyor 10A according to the second embodiment has a configuration in which a belt is wound around two rollers, unlike the carry-out conveyor 10 with the stretchable structure according to the first embodiment.

According to the horizontal pillow packaging machine M2 of the second embodiment configured as described above, the following effects can be obtained in addition to the effects substantially the same as the above (1) to (7).
(9) Since the intermediate conveyor 9 of the first embodiment is omitted, the entire structure of the horizontal pillow wrapping machine M2 can be simplified accordingly.

Next, with reference to FIG. 12, 3rd Embodiment of the horizontal pillow packaging machine of this invention is described.
In the horizontal pillow wrapping machine M3 of the third embodiment, the fixed roller member 72b1 for guiding the pair of conveyor members 70-1A and 70-1B in the second embodiment is a moving roller 72b2, and this moving roller 72b2 The guide roller 72c and the pair of heater blocks 41a and 41b follow the 41 opening / closing operation, and have a telescopic structure that can approach and separate from the heater blocks 41a and 41b.
That is, in the third embodiment, the belt guide mechanism 71B of the packaging material lower conveyance assisting means 7B is expanded and contracted so that the moving roller 72b2 and the guide roller 72c operate in the same manner as the intermediate conveyor 9 of the first embodiment. It is structured.

Now, in the state of FIG. 12, the guide roller 72c and the moving roller 72b2 are positioned away from the heater blocks 41a and 41b following the opening and closing movements of the heater blocks 41a and 41b. This is a state in which end seal construction by the blocks 41a and 41b is performed.
The moving roller F of the carry-out roller 10 is also at a position away from the heater blocks 41a and 41b following the opening and closing movements of the heater blocks 41a and 41b.

On the other hand, when the end seal construction by the heater blocks 41a and 41b is completed, the guide roller 72c and the moving roller 72b2 are moved by the heater block 41a following the opening and closing movement of the heater blocks 41a and 41b.
, 41b, and the product P is moved to an optimal position so that the end seal construction can be reliably performed.

  Further, the conveyor belt 70-2 includes a pair of belt members 70-2A and 70-2B corresponding to the pair of plate members 5-1A and 5-1B. The pair of belt members 70-2A and 70-2B has substantially the same configuration as the belt members 70-1A and 70-1B of the second embodiment, but the belt member 70 is equivalent to the portion passing through the guide roller 72c. Since the total length is longer than -1A and 70-1B, other reference numerals are given.

In addition, the moving roller 72b2 and the guide roller 72c in the packaging material lower conveyance assisting means 7B are configured by the same structure as the connecting structure of the moving roller A and the guide roller F in the first embodiment.
That is, the moving roller 72b2 and the guide roller 72c are connected via a mounting plate, a cam member, a connecting member, and the like (not shown), and the connecting member is provided with a cam follower (not shown) that moves along the cam groove. It has been.
The cam member is fixedly attached to a lifting block (not shown) to which the lower heater block 41b is attached.
Since the carry-out conveyor 10 is the same as that in the first embodiment, the packaging material lower conveyance assist means 7B and the carry-out conveyor 10 are configured to open and close the pair of heater blocks 41a and 41b of the end seal device 4 and It can operate following the horizontal movement.

  According to the horizontal pillow packaging machine M3 of the third embodiment configured as described above, substantially the same effects as the above (1) to (9) can be obtained.

  The present invention has been described above with reference to the above embodiment, but the present invention is not limited to the above embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention. In addition, the present invention includes a combination of some or all of the configurations of the above embodiments as appropriate.

For example, in each of the embodiments described above, the packaging material upper conveyance assisting unit 6 is configured such that the pressing member 62 rotates along an elliptical orbit. However, the present invention is not limited to this, and FIG. It is good also as 6A of packaging material upper side conveying apparatuses of a structure as shown to B).
That is, the packaging material upper conveyance assisting means 6A is provided at the position of the moving roller U, that is, at the outer periphery of the moving roller U, following the opening / closing operation of the pair of heater blocks 41a and 41b constituting the end seal device 4. The position of the pressing member 62 is variable.

As shown in FIGS. 13A and 13B, the packaging material upper side conveying device 6A includes fixed rollers R, S, a guide roller T, and a moving roller U. These rollers R, S, T, On the outer periphery of U, pressing members 62 are provided at regular intervals.
The fixed roller S is disposed obliquely above the fixed roller R with respect to the fixed roller R which is also a driving roller.

Although not shown, the guide roller T and the moving roller U are rotatably disposed on the moving roller mounting plate as in the structure similar to the telescopic structure applied to the intermediate conveyor 9 and the like. The moving roller mounting plate is connected to a cam member in which a cam groove or the like (not shown) is formed. By these mechanisms, the guide roller T and the moving roller U move in the front-rear direction, that is, with respect to the pair of heater blocks 41a and 41b. It is configured to be able to approach and separate.
Accordingly, the guide roller T and the moving roller U can be moved in the directions of the arrows X1 and X2 so that the moving distance can be adjusted by following the opening / closing operation of the pair of heater blocks 41a and 41b.

  Now, in the state of FIG. 13A, when the pair of heater blocks 41a and 41b are closed, that is, when the end seal is applied, the guide roller T disposed on the moving roller mounting plate is moved. The roller U is moved by a predetermined distance in the direction of the arrow X2 (movement of a short distance) by the operation of the cam mechanism or the like and is separated from the pair of heater blocks 41a and 41b by a predetermined distance, that is, in a separated state. is there.

Further, in the state of FIG. 13B, the end seal processing by the pair of heater blocks 41a and 41b is finished and they are separated from each other in the vertical direction. At this time, the pair of heater blocks 41a and 41b is opened and closed. Following this, the guide roller T and the moving roller U disposed on the moving roller mounting plate move by a predetermined distance in the direction of the arrow X1 (movement of a long distance) by the operation of the cam mechanism or the like, and a pair of heater blocks It is a state approaching 41a, 41b, that is, a close state.
And in such embodiment, it can respond to the various models in which the whole length etc. of a horizontal pillow packaging machine differ.

  In the first and third embodiments, there are two products P included in the tubular film Ft. However, the present invention is not limited to this, and two products P1 may be stored in the second embodiment. However, one product P may be stored in the first and third embodiments.

  Further, in each of the above embodiments, the normal pillow type horizontal pillow packaging machine M1 or the like in which the belt-shaped film is fed from the upper raw fabric roller toward the cylinder making machine is applied. The invention can also be applied to a reverse pillow type horizontal pillow packaging machine in which a belt-shaped film is fed from a lower raw fabric roller toward a cylinder making machine.

  INDUSTRIAL APPLICABILITY The present invention can be used to prevent the product from shifting with respect to the tubular film even when the tubular film suddenly stops during conveyance of the tubular film containing the product.

M1 horizontal pillow packaging machine (first embodiment)
M2 horizontal pillow packaging machine (second embodiment)
M3 horizontal pillow packaging machine (third embodiment)
DESCRIPTION OF SYMBOLS 1 Product supply apparatus 2 Film feeding apparatus 3 Center seal mechanism 4 End seal apparatus 5 Packaging material conveyance support plate 5A One plate member 5B The other plate member 6 Packaging material upper conveyance auxiliary means 7 Packaging material lower conveyance auxiliary means 8 Control apparatus DESCRIPTION OF SYMBOLS 9 Intermediate conveyor 10 Unloading conveyor 21 Paper feed roller 22 Cylinder 23 Paper drawing roller 31 Center sealer 50 Cooling mechanism 51 Intermediate plate 52 Back cover plate 53 Support block 55 Support block 62 Press member 70 Conveyor belt 71 Belt guide mechanism 76 Conveyor attachment / detachment Mechanism 77 Fixing member 80 Front side swinging member 82 Back side swinging member 84 Fixing metal fitting Fr Original fabric roll Fw Band-shaped packaging material Ft Cylindrical packaging material P Product P (packaged product)
Bp pillow package

Claims (10)

A cylinder making machine for forming a belt-shaped packaging material continuously drawn out from the raw roll, and
A product supply device for sequentially supplying products to the cylindrical packaging material at regular intervals;
A packaging material transport support plate that is disposed on the downstream side of the cylinder making device and supports the cylindrical packaging material containing the product so as to be transportable;
A center seal mechanism that is provided on the lower surface side of the packaging material conveyance support plate and constructs a vertical seal at the overlapping end of the cylindrical packaging material;
Packaging that is arranged on the upper surface side of the packaging material conveyance support plate and assists conveyance of the product downstream with the packaging material conveyance support plate pressed through the cylindrical packaging material Material upper conveyance auxiliary means,
In the horizontal pillow wrapping machine, which is provided on the downstream side of the center seal mechanism and includes an end seal device that sandwiches an end portion in the flow direction of the cylindrical packaging material to perform heat sealing,
A conveyor belt that is guided and slid by the packaging material conveyance support plate and a belt guide mechanism disposed on a lower surface side of the packaging material conveyance support plate; and the conveyor belt and the packaging material upper conveyance auxiliary means A horizontal pillow packaging machine comprising a packaging material lower conveyance assisting means for assisting conveyance of the product downstream with the product sandwiched between the cylindrical packaging materials. . In the horizontal pillow packaging machine according to claim 1,
A horizontal pillow packaging machine, wherein the packaging material conveyance speeds of the packaging material upper conveyance assisting means and the packaging material lower conveyance assisting means are synchronized. In the horizontal pillow packaging machine according to claim 1 or 2,
The packaging material conveyance support plate is composed of one and the other pair of plate members arranged at the center seal interval on the left and right along the conveyance direction of the cylindrical packaging material,
A horizontal pillow packaging machine, wherein the belt guide mechanism is provided corresponding to each of the pair of plate members. In the horizontal pillow packaging machine according to any one of claims 1 to 3,
The belt guide mechanism includes at least four guide rollers provided in a main body portion of the horizontal pillow packaging machine and protruding in a direction orthogonal to a conveying direction of the cylindrical packaging material. Horizontal pillow wrapping machine. In the horizontal pillow packaging machine according to claim 3 or 4,
A cooling mechanism for cooling each plate member is provided on the back surface of each of the pair of plate members and part of the center seal interval side,
Each cooling mechanism is fixed to the back surface of each plate member and has an intermediate plate partially formed with a groove, a back plate that covers the intermediate plate and uses the groove as a sealed space, and the groove A horizontal pillow wrapping machine comprising: a cooling medium that flows into the machine. The horizontal pillow packaging machine according to claim 5,
The groove is formed in a substantially U-shape that is long along the transport direction of the packaging material, one end on the open side is the supply side of the cooling medium, and the other end on the open side is the cooling medium. Horizontal pillow wrapping machine characterized by being on the discharge side. The horizontal pillow packaging machine according to claim 6,
A horizontal pillow packaging machine, wherein the cooling medium is composed of cooling water. The horizontal pillow packaging machine according to claim 6,
A horizontal pillow packaging machine, wherein the cooling medium is composed of compressed air. In the horizontal pillow packaging machine according to any one of claims 3 to 8,
Each of the pair of conveyor members can be attached to and detached from the four guide rollers in the vicinity of the tip of one guide roller disposed below the pair of plate members among the four guide rollers. A horizontal pillow wrapping machine provided with a conveyor attaching / detaching mechanism. The horizontal pillow wrapping machine according to claim 9, wherein the conveyor attaching / detaching mechanism includes a fixing member provided in the machine main body, a front side swinging member swingable from one end side of the fixing member, A fixing member and a fixing bracket for fixing the near-side rocking member,
When the front swing member is swung with respect to the fixing member, a gap for extracting the pair of conveyor members is formed between one side surface of the front swing member and one side surface of the fixing member. A horizontal pillow wrapping machine.

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