JP7015505B2 - Vertical bag filling and packaging machine - Google Patents

Description

The present invention is a bag package in which the product is packaged by laterally sealing the tubular packaging material which is vertically fed around the filling cylinder and into which the product as a package is loaded through the filling cylinder by a horizontal sealing device. The present invention relates to a vertical bag-making filling / packaging machine for preventing the product from being bitten into the horizontal sealing device.

The vertical bag-making filling and packaging machine seals the product in the horizontal direction by a horizontal sealing device for a tubular packaging material that is vertically fed around the filling cylinder and into which the product as a package is loaded through the filling cylinder. It is a packaging machine that can continuously manufacture packaged bags at high speed. However, in the horizontal sealing device, the tubular packaging material is laterally sandwiched between two horizontally arranged horizontal sealing members, and the tubular packaging material is pressurized and heated to apply the horizontal sealing to the tubular packaging material. If the product does not sink sufficiently toward the bottom in the tubular packaging material, there is a big problem that the product may be caught between the horizontal sealing members.

Therefore, in the past, as a measure to prevent the product from being bitten by such a horizontal sealing device, by moving the horizontal sealing member up and down, a "squeezing operation" is performed on the upper part of the bag, and a product that may remain on the upper part of the bag. The product exists in the planned sealing area at the top of the bag by pushing it into the bag or by installing a shutter device above the horizontal sealing device to keep the product above the horizontal sealing device and prevent it from falling further. It is being done that the state is not.

However, depending on the variation in the fall time of the package, it may be unavoidable that the product passes through the shutter device and falls toward the lateral sealing device. In such a case, it is not possible to completely prevent the occurrence of product biting in the lateral sealing device.

The present applicant has proposed a vertical bag-making filling and packaging machine that performs box motion type horizontal sealing that enables the horizontal sealing time to be as long as possible (see Patent Document 1 as an example). An example of a vertical bag-making filling and packaging machine that performs a box motion type horizontal seal is shown in FIG. 7, and details of the horizontal seal / cutter device thereof are shown in FIG. As shown in FIG. 7, in the vertical bag-making filling and packaging machine 60, the strip-shaped packaging material Fw is guided by the former 61 and bent so as to wrap the filling cylinder 62 into which the product to be packaged is loaded, and further. On the front side of the former 61, both side edge portions fe and fe are overlapped in a palm-like shape, for example, and the overlapped both side edge portions fe and fe are vertically sealed by the vertical sealing device 63 to form a tubular packaging material Ft. Will be done. The tubular packaging material Ft is pulled down by the packaging material feeding device 64 provided on the rear side surface of the filling cylinder 62 and fed to the lower part of the filling cylinder 62, and then the horizontal seal is removed by the horizontal seal cutter device 67. The finished product, bag package Bp, is manufactured by being applied and cut at the site of the horizontal seal.

The tubular packaging material Ft includes one packaging material feeding device 64 provided on the rear side surface of the filling cylinder 62 and two pairs of feeding rollers 65, 66 provided close to the upper side and the lower side of the vertical sealing device 63. Paper is fed downward in cooperation with, but instead, by a packaging material feeding device such as a suction belt device which is arranged on both lateral sides of the filling cylinder 62 and operates synchronously. It may be fed by paper. Further, the horizontal seal / cutter device 67 seals at a fixed (immovable) position in the vertical direction, but it is also well known that the horizontal seal / cutter device 67 performs a box motion as shown in (a) in order to prolong the sealing time. .. The box motion means that the horizontal seal / cutter device 67 is moved downward together with the flow of the tubular packaging material Ft in the straight line portion (b) of the locus without stopping the feeding of the packaging material. It is an operation for. That is, since the sealing by the heater is continued at the straight portion of (b), the sealing time can be lengthened without stopping the flow of the tubular packaging material Ft. Further, products such as sweets to be put into the tubular packaging material Ft are thrown in from above through the filling cylinder 62 during the period when the horizontal seal follows the return (c) in the box motion.

FIG. 8 shows the details of the lateral seal cutter device 67 arranged below the filling cylinder 62 into which the product W is charged. The lateral seal cutter device 67 includes two lateral seal heater members 68, 68 which are arranged so as to face each other. The horizontal seal heater members 68 and 68 have a built-in cutter mechanism (cutter blade and groove into which the cutter blade enters) 69 for laterally cutting the tubular packaging material Ft. On the upper side of the horizontal seal heater members 68, 68, a pair of opposite upper shutter members (upper shutter members) that project from the tip of the horizontal seal heater surface to a position closer to each other and are spring-supported. 70, 70 are provided, and a pair of ironing members (lower shutter members) 71, 71 are provided below the heater members 68, 68 for horizontal sealing. The upper shutters 70, 70 are provided with curved receiving plates 72, 72 so that the product W can receive the bottom of the cylindrical packaging material Ft that has been dropped and filled when the product W is closed. The shutter members 70, 70 and the ironing members 71, 71 have the same configuration as the members attached to the conventional horizontal seal / cut device, which is not a box motion type, and have a normal structure.

The path drawn when the pair of horizontal seal heater members 68, 68 constituting the horizontal seal / cut device 67 performs a box motion type operation faces a pair of cam curves as if one side of a circle is cut by a straight line. There are only two arc loops (a). Therefore, the operation is such that the pair of horizontal sealing heater members 68, 68 are closed to each other and descend while forming a vertically parallel double-row seal, and then the cutter mechanism 69 is placed between the horizontal two-row seals during the horizontal seal. After cutting the tubular packaging material Ft, a symmetrical box motion is continuously performed in which the operation of opening wide and returning to the ascending direction is repeated so as not to interfere with the product W.

The operation of the horizontal seal / cutter device 67 is as follows. At the upper part (d) of the straight portion (b) of the box motion, the horizontal seal heater members 68 and 68 constituting the horizontal seal cutter device 67 are closed in accordance with the cut position of the tubular packaging material Ft, and laterally. Before the sealing heater members 68, 68 are closed, the pair of shutter members 70, 70 and the pair of ironing members 71, 71 are first closed to flatly sandwich the tubular packaging material Ft, and the subsequent box motion is in progress. The horizontal seal heater members 68 and 68 are closed at, and the tip seal surface thereof is on the upper side of the product W that is drop-filled through the filling cylinder 62 and on the lower side of the product that is to be drop-filled next. , The tubular packaging material Ft is sealed to the horizontal two rows at the same time, and the cutter mechanism 69 operates while the horizontal sealing heater members 68 and 68 are closed, and the tubular packaging material Ft is tubular at the cut position in the middle of the horizontal two rows. Cut the packaging material Ft. During the operation of the cutter mechanism 69, the product to be packaged next is charged into the filling cylinder 62.

In the vertical bag-making filling and packaging machine, when a pair of horizontal sealing heater members 68 and 68 are horizontally sealed, the product is bulky or the product falls and then jumps up, thereby biting the product. May cause defects. The pair of ironing members 71, 71 attached to the horizontal seal heater members 68, 68 are provided from above to below the cut position of the tubular packaging material Ft while the pair of horizontal seal heater members 68, 68 are open. By squeezing the distance, the product is forcibly pushed into the bag side. In this example, by controlling the servomotor for box motion so that the sealing time for a predetermined sealing distance becomes relatively long in one cycle, the time spent for sealing is increased, which is strong. Allows sealing. On the other hand, the loaded product is received by the receiving plates 72, 72 attached to the shutter members 70, 70, but since the receiving plates 72, 72 have a structure attached to the shutter members 70, 70, the shutter member If the 70 and 70 do not close, they will not move in the direction of receiving the tubular packaging material Ft from the outside and receive the product. Therefore, the receiving plates 72 and 72 do not operate independently of the shutter members 70 and 70 to effectively receive the product. Further, as a matter of course, since the receiving plates 72, 72 have a structure separated in the vertical direction from the ironing members 71, 71, they do not have a linking configuration with the ironing members 71, 71.

In the vertical filling and packaging machine, the applicant can independently approach and separate the bag pulling part from the side with respect to the tubular packaging material, and when approaching, the bag pulling part becomes the tubular packaging material. We propose a structure in which the loaded package is received and supported via the tubular packaging material (Patent Document 2). In this structure, as shown in FIG. 9, below the filling cylinder 62, there are a pair of heat-cutting portions (horizontal sealing members) 80, 80 that only open and close from the side with respect to the tubular packaging material Ft. Separately, a pair of bag pull-down portions 81, 81 to which sponge-like elastic rubber bodies 82, 82 serving as cushioning bodies are attached are provided (FIGS. 9A and 9B). The bag pulling parts 81 and 81 are related to the operation of the heat cutting parts 80 and 80, but a box motion that combines the opening and closing operation and the up and down operation is performed by a mechanism different from that of the heating cutting parts 80 and 80 ( 9 (b) and 9 (c)). When the bag pulling portions 81, 81 approach the tubular packaging material Ft, the elastic rubber bodies 82, 82 act as a receiving member that receives the impact of the drop filling of the product. The bag pulling-down portions 81, 81 do not have a structure that is directly linked to the heat-cutting portions 80, 80, although they are operationally related to the heat-cutting portions 80, 80. Further, this structure does not include a shutter member or an ironing member in relation to the heat cutting portions 80 and 80.

Japanese Unexamined Patent Publication No. 10-297619 Jitsuzensho 48-112772

Therefore, apart from the closing operation of the horizontal sealing device provided with the shutter member, the product receiving member that receives the product as a package is operated, and the product receiving member and the shutter member cooperate with each other. There is a problem to be solved in that it enables the product to be received even if the horizontal sealing device does not close, and more reliably prevents the horizontal sealing device from biting the loaded product. be.

An object of the present invention is to solve the above-mentioned problems, and a horizontal sealing device has been introduced while enabling high-speed packaging of products by enabling receiving of products even if the horizontal sealing device does not close. It is to provide a vertical bag-making filling and packaging machine that prevents products from being bitten and suppresses the occurrence of defective products as much as possible.

The vertical bag-making filling and packaging machine according to the present invention is a packaged product in which a tubular packaging material that is vertically fed around a filling cylinder and into which a product is loaded through the filling cylinder is laterally sealed by a horizontal sealing device. The horizontal sealing device comprises two horizontal sealing members arranged to face each other, and an upper shutter member and a lower shutter member arranged on the upper side and the lower side of the horizontal sealing member, respectively. The tubular packaging material is provided, and the tubular packaging material is approached to the tubular packaging material, and the tubular packaging material is sandwiched between the upper shutter member and the lower shutter member to perform a lowering operation. It is a vertical bag-making filling and packaging machine that performs a circulation motion that follows a path away from and returns to its original position. It opens and closes under the filling cylinder separately from the opening and closing operation of the horizontal sealing device, and is in a closed state. Then, a product receiving shutter member is disposed in which a gap is formed at the lower end portion so as to pass the tubular packaging material sandwiched flatly, and at least the lower shutter member is the circulation motion performed by the lateral sealing device. At this time, the product receiving shutter member is in contact with the product receiving shutter member during the closing operation, and then the tubular packaging material extending downward from the lower end portion of the product receiving shutter member is in contact with the lower end portion. It is composed of a transition to a contact state and a squeezing operation on the tubular packaging material extending downward from the lower end portion .

According to this vertical bag-making filling and packaging machine, a package is manufactured by horizontally sealing a tubular packaging material that is vertically fed around a filling cylinder and into which a product is loaded through the filling cylinder by a horizontal sealing device. The packaged bag package is manufactured. The horizontal seal device includes two horizontal seal members arranged so as to face each other, and an upper shutter member and a lower shutter member arranged on the upper side and the lower side of the horizontal seal member, respectively. The horizontal sealing device also approaches the tubular packaging material, performs a descending operation with the tubular packaging material sandwiched between the upper shutter member and the lower shutter member, seals in the lateral direction, and then starts from the tubular packaging material. Make a circular motion that follows the path away and back to the original position. Therefore, the upper shutter member and the lower shutter member also perform a circulation motion together with the horizontal seal member. Below the filling cylinder, a product receiving shutter member that opens and closes separately from the closing operation of the horizontal sealing device is arranged. At the lower end of the product receiving shutter member, a gap is formed in the closed state of the product receiving shutter member so that the tubular packaging material sandwiched flatly can be passed through. At least the lower shutter member abuts on the product receiving shutter member in the closing operation during the circulation motion performed by the lateral sealing device, and then squeezes the tubular packaging material extending downward from the lower end of the product receiving shutter member. It works. Since the product receiving shutter member opens and closes separately from the closing operation of the horizontal sealing device, it is possible to receive the product to be loaded into the tubular packaging material without the horizontal sealing device closing operation. Further, at least the lower shutter member abuts on the product receiving shutter member in the closing operation during the circulation motion performed by the lateral sealing device, and then continues from the abutting state to the lower end portion of the product receiving shutter member. Since the transition to the contact state with the tubular packaging material extending downward from the lower end portion and the squeezing operation with respect to the tubular packaging material extending downward from the lower end portion, the horizontal sealing by the horizontal sealing member is a cylinder. Even if the product receiving shutter member is applied in the area where the squeezing operation of the wrapping material is applied and the product or product debris cannot be received and falls or adheres to the tubular wrapping material directly underneath, the squeezing is performed. By the operation, the product or the like is excluded from the planned area of the horizontal seal, and the input product is more reliably prevented from being caught by the horizontal seal member.

In this vertical bag-making filling and packaging machine, the product receiving shutter member is connected to an upper portion whose inner surface side is formed as a slope or a concave curved surface following the bottom portion of the tubular packaging material, and from the upper portion. It extends straight down and the inner surface side is formed on a flat surface, and in the closed state, the space between the flat surfaces can be provided with a lower side portion as a gap for passing the tubular packaging material.
According to this structure of the product receiving shutter member, since the inner surface side of the upper portion is formed on a slope or a concave curved surface, the bottom portion of the tubular packaging material can be widely supported, and the receiving of the loaded product can be supported. In addition to ensuring that the lower part connected to the upper part, a gap sufficient for passing the tubular packaging material sandwiched flat is secured in a sufficiently wide area between the flat surfaces, so that the product is a product. It is possible to prevent the situation where the receiving shutter member slips through and falls on the horizontal sealing device.

In this vertical bag-making filling and packaging machine, the product receiving shutter member is formed on an inclined surface or a concave curved surface on the inner surface side following the bottom of the tubular packaging material, and in the closed state, the distance between the lower end edges is formed. Can be said to be the gap only through which the tubular packaging material is passed.
According to this structure of the product receiving shutter member, since the inner surface side is formed on a slope or a concave curved surface, the bottom of the tubular packaging material can be widely supported, and the received product can be reliably received. In addition, since the space between the lower end edges is set to a gap that allows the tubular packaging material to pass through, it is possible to prevent the product from slipping through the product receiving shutter member and falling onto the horizontal sealing device.

In this vertical bag-making filling and packaging machine, the product receiving shutter member opens after the upper shutter member moves below the product receiving shutter member during the circulation motion of the horizontal sealing device. Can be done.
After the upper shutter member moves below the product receiving shutter member during the circulation motion of the horizontal sealing device, the horizontal sealing device interferes with the opening operation of the product receiving shutter member in both the horizontal sealing member and the upper and lower shutter members. There is nothing to do. Therefore, the product receiving shutter member can be opened at this stage. Since the upper shutter member closes the tubular packaging material, the product put into the filling cylinder is stopped by the upper shutter member and does not fall into the horizontal sealing device.

In this vertical bag-making filling and packaging machine, the product receiving shutter member has a gap wider than the gap only through which the tubular packaging material passes when the product receiving shutter member closes. A sensor for detecting whether or not the product is present is provided, and depending on the case where the detection result is negative, it is possible to predict the biting of the product by the horizontal seal member.
When the product receiving shutter member closes, the gap between the lower ends of the product receiving shutter member is not just a gap for passing the tubular packaging material sandwiched flat in the closed state of the product receiving shutter member. When the sensor detects this, there is a possibility that the product receiving shutter member is sandwiching the product. After that, when the packaging operation is continued, there is a high possibility that the horizontal sealing member will bite the product. Therefore, by predicting that fact, it is possible to prevent the horizontal sealing device from biting the product in advance.

In this vertical bag-making filling and packaging machine, the product receiving shutter member can be formed with a large number of suction holes connected to a negative pressure source and opened on the side facing the tubular packaging material.
Since many suction holes are connected to the negative pressure source, the tubular packaging material is sucked to widen the bottom of the bag, and the tubular packaging material is also sucked when the product receiving shutter member opens and operates. Since it tries to expand the inside, it is possible to activate the sinking of the product into the bottom of the bag even if the product is lightweight.

In this vertical bag-making filling and packaging machine, the product receiving shutter member may move downward from a position directly below the filling cylinder to a position at a height at which the horizontal sealing device performs the closing operation in the closed state. can.
If the vertical feed of the tubular packaging material is faster than the product drop speed, the product drop cannot keep up with the vertical feed of the tubular packaging material, and the horizontal sealing device is activated before the product sinks sufficiently. The sealing device may bite the product. Further, there are some products that have not yet fallen into the tubular packaging material at the timing when the product starts landing on the upper shutter of the horizontal sealing device after the horizontal sealing device is closed. By lowering the product receiving shutter member in the closed state, even if the vertical feed of the tubular packaging material is faster than the falling speed of the product, in the bag already formed in the tubular packaging material, Lifting of the filled product is prevented by the product receiving shutter member, and biting of the product by the lateral sealing device is prevented. Further, the product put into the tubular packaging material is received by the product receiving shutter member even when the horizontal sealing device is in the open state, so that the product is prevented from being caught by the horizontal sealing device.

In this vertical bag-making filling and packaging machine, the lowering speed when the product receiving shutter member performs the lowering operation can be set to be the same as the vertical feeding speed of the tubular packaging material.
Since the product receiving shutter member descends at the same speed as the vertical feed rate of the tubular packaging material, the size of the bag formed at the lower end of the tubular packaging material does not change.

In this vertical bag-making filling and packaging machine, the lowering speed when the product receiving shutter member performs the lowering operation can be set to be faster than the vertical feeding speed of the tubular packaging material.
When the product receiving shutter member has a speed faster than the vertical feed rate of the tubular packaging material, the lower end of the product receiving shutter member moves relative to the flat tubular packaging material and squeezes the bag. can do.

In this vertical bag-making filling and packaging machine, after the horizontal sealing device performs the lowering operation, the tubular packaging material is subjected to the lateral direction while the vertical feeding of the tubular packaging material is stopped. The cylinder while the intermittent operation type bag-making filling and packaging machine for sealing or the horizontal sealing device performs an additional lowering operation together with the vertical feed of the tubular packaging material after the lowering operation. It is possible to use a continuously operating type bag-making filling / packaging machine that seals the packaging material in the lateral direction.
The bag-making filling and packaging machine is an intermittent operation type that performs horizontal sealing while the tubular packaging material is stopped, or a continuous operation type that performs horizontal sealing while the tubular packaging material is being fed. By using a bag-making filling and packaging machine, it is possible to manufacture a bag package containing a product that can be put into a filling cylinder at a high packaging speed according to the conditions, based on the properties of the product and the performance required for sealing. Can be done.

According to the vertical bag-making filling and packaging machine equipped with this shutter mechanism, the horizontal sealing device approaches the tubular packaging material and moves with the vertical feed of the tubular packaging material while sandwiching the tubular packaging material. After that, a circulation motion is performed to follow a path away from the tubular packaging material and returned to the original position, and the upper shutter member and the lower shutter member also perform a circulation motion together with the horizontal seal member. Below the filling cylinder, a product receiving shutter member that opens and closes separately from the closing operation of the horizontal sealing device is arranged. At the lower end of the product receiving shutter member, a gap is formed in the closed state of the product receiving shutter member so that the tubular packaging material sandwiched flatly can be passed through. At least the lower shutter member abuts on the product receiving shutter member in the closing operation during the circulation motion performed by the lateral sealing device, and then squeezes the tubular packaging material extending downward from the lower end of the product receiving shutter member. It works. Since the product receiving shutter member opens and closes separately from the closing operation of the horizontal sealing device, it prevents the product from passing through by receiving the product put into the tubular packaging material even if the horizontal sealing device does not close. It is possible to enable high speed packaging of products. Further, at least the lower shutter member abuts on the product receiving shutter member in the closing operation during the circulation motion performed by the lateral sealing device, and then continues from the abutting state to the lower end portion of the product receiving shutter member. It shifts to the contact state with respect to the tubular packaging material extending downward from the lower end portion, and performs a squeezing operation with respect to the tubular packaging material extending downward from the lower end portion. The seal by the horizontal seal member is applied in the area where the product does not fall and is squeezed, so that the product receiving shutter member cannot catch the product or product debris and falls and adheres to the tubular packaging material directly underneath. Even if this happens, the squeezing operation can eliminate the product etc. from the planned area of the horizontal seal, more reliably prevent the input product from being caught by the horizontal seal member, and the generation of defective products in the bag package. Can be suppressed as much as possible.

FIG. 1 is an embodiment of a vertical bag-making filling / packaging machine according to the present invention, and is a diagram showing a main part thereof. FIG. 2 is another embodiment of the vertical bag-making filling / packaging machine according to the present invention, and is a diagram showing a main part thereof. FIG. 3 is still another embodiment of the vertical bag-making filling and packaging machine according to the present invention, and is a diagram showing a main part thereof. FIG. 4 is another embodiment of the vertical bag-making filling / packaging machine according to the present invention, and is a diagram showing a main part thereof. FIG. 5 is still another embodiment of the vertical bag-making filling and packaging machine according to the present invention, and is a diagram showing a main part thereof. FIG. 6 is a diagram showing still another embodiment of the vertical bag-making filling / packaging machine according to the present invention, the main part thereof. FIG. 7 is a diagram showing an example of a conventional vertical bag-making filling / packaging machine. FIG. 8 is a diagram showing a horizontal sealing device of the vertical bag-making filling and packaging machine shown in FIG. 7. FIG. 9 is a diagram showing an example of a conventional vertical packaging machine.

Hereinafter, examples of the vertical bag-making filling / packaging machine according to the present invention will be described with reference to the attached drawings. FIG. 1 is a diagram showing an embodiment of a vertical bag-making filling / packaging machine according to the present invention. FIG. 1 is a side view showing in order the operation of each mechanism including the shutter mechanism in one packaging cycle of a vertical bag-making filling / packaging machine in (a) to (g).

The basic configuration of the vertical bag-making filling and packaging machine, that is, the configurations of the former, the filling cylinder, the vertical sealing device, the horizontal sealing device, etc. that bend the strip-shaped packaging material into a substantially tubular shape are shown in FIG. It may have the configuration provided in the conventional vertical bag-making filling / packaging machine as shown. Therefore, for those components, the same reference numerals as those used for the vertical bag-making filling and packaging machine shown in FIG. 7 will be used, and detailed description thereof will be omitted again.

The vertical bag-making filling / packaging machine 1 shown in FIG. 1A is an intermittent operation type vertical bag-making filling / packaging machine that applies a horizontal seal when the vertical feeding of the tubular packaging material Ft is stopped. In the horizontal sealing device 2 for applying a horizontal seal to the tubular packaging material Ft, in a state where the tubular packaging material Ft is set in the filling cylinder 62, the tubular packaging material Ft is sandwiched between them in the front-rear direction XX (X). In the figure, it is provided with two lateral seal members 3 and 3 which are arranged facing each other (in the left-right direction of the paper surface) and operate so as to approach and separate from each other. When the horizontal sealing members 3 and 3 sandwich the tubular packaging material Ft between the sealing surfaces 4 and 4 at the tip thereof, the sandwiched portion of the tubular packaging material Ft is pressurized and heated to perform horizontal sealing. The horizontal seal members 3 and 3 have a conventionally known heat seal bar structure having a built-in heater, and a cutter mechanism (not shown) for cutting the packaging material is incorporated therein.

The horizontal seal device 2 includes a horizontal seal shutter device 5 combined with the horizontal seal members 3 and 3. That is, in the horizontal seal shutter device 5, the upper shutter members 6 and 6 arranged on the upper side of the horizontal seal members 3 and 3 and the lower shutter member 8 arranged on the lower side of the horizontal seal members 3 and 3 are provided. , 8 is provided. When the tubular packaging material Ft is set in the filling cylinder 62, the upper shutter members 6 and 6 are arranged so as to face each other in the front-rear direction with the tubular packaging material Ft sandwiched between them. The lower shutter members 8 and 8 are also arranged to face each other in the same manner as the upper shutter members 6 and 6. The horizontal sealing device 2 is a tubular packaging material Ft for the tips 7 and 7 of the upper shutter members 6 and 6 in the front-rear direction XX and the tips 9 and 9 of the lower shutter members 8 and 8 in the front-rear direction XX. In a state where it does not abut with, it is in a position advanced toward the tubular packaging material Ft side from the sealing surfaces 4 and 4 of the horizontal sealing members 3 and 3.

The horizontal seal members 3 and 3 and the horizontal seal shutter device 5 basically operate in conjunction with the front-rear direction XX and the vertical direction ZZ. The upper shutter members 6 and 6 and the lower shutter members 8 and 8 of the horizontal seal shutter device 5 interlock with the horizontal seal members 3 and 3, and synchronously open and close the front-rear direction XX and the vertical direction ZZ. Move up and down. However, when the horizontal seal members 3 and 3 come into contact with the tubular packaging material Ft to perform horizontal seal, they can operate in the front-rear direction XX separately from the horizontal seal shutter device 5. That is, in a state where the tip portions 7 and 7 of the upper shutter members 6 and 6 and the tip portions 9 and 9 of the lower shutter members 8 and 8 are in contact with the tubular packaging material Ft flattened in the front-rear direction XX. , The horizontal seal members 3 and 3 can independently move forward and backward in the front-rear direction XX. With the upper shutter members 6 and 6 and the lower shutter members 8 and 8 in contact with the flattened tubular packaging material Ft, the horizontal sealing members 3 and 3 move forward and the sealing surfaces 4 and 4 have a flat tubular shape. The horizontal sealing members 3 and 3 can be retracted after the horizontal sealing is performed by contacting the packaging material Ft. As a specific structure that allows the horizontal seal members 3 and 3 to operate in conjunction with each other and the horizontal seal members 3 and 3 to operate independently of the horizontal seal shutter device 5, Patent Documents As shown in 1 and FIG. 8, there is a linking structure in which the shutter plates 6 and 8 are connected to the lateral seal members 3 and 3 in the front-rear direction via a spring and are slidable.

Since the horizontal sealing device 2 is used in an intermittently operated vertical bag-making filling and packaging machine, it basically has a structure of advancing and retreating only in the front-rear direction XX. In relation to the shutter member, the tubular packaging is flattened in the middle by drawing a loop (circular motion operation) that approaches each other, descends, descends, and then further separates and returns to the original position. A horizontal seal is applied by contacting the material Ft. Further, the upper shutter members 6 and 6 and the lower shutter members 8 and 8 approach and contact the tubular packaging material Ft, descend in the contacted state, and then separate from the tubular packaging material Ft and return to their original positions. The operation of drawing a loop like this (circular motion operation). In particular, the lower shutter members 8 and 8 perform a squeezing operation of descending while abutting against the upper portion of the bag B formed at the tip (lower end) of the tubular packaging material Ft. In the state shown in FIG. 1 (a), the horizontal seal members 3 and 3 and the horizontal seal shutter device 5 are both inactive, and are retracted and separated from the tubular packaging material Ft in the front-rear direction XX and are separated from each other. It is in the open state.

A product receiving shutter device 10 is arranged outside the tubular packaging material Ft in a region extending from the installation position of the lower shutter members 8 and 8 of the horizontal seal shutter device 5 to a predetermined position above the upper shutter members 6 and 6. ing. The product receiving shutter device 10 is a two plate-shaped product that is arranged so as to sandwich the tubular packaging material Ft from the outside in the front-rear direction XX and is opened and closed in the front-rear direction XX by an appropriate means. The receiving shutter members 11 and 11 are provided. The product receiving shutter members 11 and 11 are opened and closed by, for example, rotating in synchronization with the front-rear direction XX by an appropriate swing mechanism. In FIG. 1, a gap is provided between the product receiving shutter members 11 and 11 and the tubular packaging material Ft, but usually there is almost no gap and the product is substantially in contact with each other.

Each product receiving shutter member 11 has a vertical plate structure that is bent in a "<" shape, and the upper plate portion 12 of the "K" shape is a tubular packaging material that faces downward in the closed state. It is a swash plate that sandwiches Ft so that it gradually narrows. The lower plate portion 13 in the shape of a dogleg, which is vertically bent and connected to the upper plate portion 12, becomes a vertical plate extending directly below in the closed state, and flattens the tubular packaging material Ft in the front-rear direction XX. Crush it into two layers and sandwich it so that it overlaps. The product receiving shutter members 11 and 11 are symmetrically configured and operate, and in a state where the tubular packaging material Ft is sandwiched between them and closed in the front-rear direction XX, the product receiving shutter device 10 as a whole is Y. It has a character shape. When the product receiving shutter members 1 and 11 open in the front-rear direction XX, each product receiving shutter member 11 rotates so as to be lifted slightly upward, retracts away from the tubular packaging material Ft, and is in the open state. Allows vertical feed downward through the gap without contacting the tubular packaging material Ft.

In the state shown in FIG. 1A, in the horizontal sealing device 2, the horizontal sealing members 3 and 3 and the upper and lower shutter members 6, 6; 8 and 8 of the horizontal sealing shutter device 5 recede in the front-rear direction XX, respectively. And it is in an open state. The product receiving shutter members 11 and 11 of the product receiving shutter device 10 are in a closed state and are in a standby state ready to receive the product W1 to be charged into the tubular packaging material Ft through the filling cylinder 62.

FIG. 1B shows a situation in which the lateral sealing operation is started from the state shown in FIG. 1A. That is, with respect to the product receiving shutter device 10, the product receiving shutter members 11 and 11 are kept closed, and the product W1 charged into the tubular packaging material Ft through the filling cylinder 62 is a closed product receiving. The shutter members 11 and 11 receive and support the tubular packaging material Ft from the outside. The horizontal seal members 3 and 3 and the horizontal seal shutter device 5 start the closing operation in the front-rear direction XX together.

FIG. 1C shows a situation in which the lateral sealing operation of the lateral sealing device 2 further progresses from the state shown in FIG. 1B. That is, the horizontal seal shutter device 5 further approaches the product receiving shutter device 10 together with the horizontal seal members 3 and 3, and the tip portions 7 and 7 of the upper shutter members 6 and 6 and the tip portions 9 and 9 of the lower shutter members 8 and 8 are further approached. Stops or decelerates the closing operation at a position close to the lower plate portions 13, 13 of the product receiving shutter members 11, 11, or the tip portions 7, 7; 9, 9 of both shutter members 6, 6; 8, 8 The closing operation is stopped at a position where the product receiving shutter members 11 and 11 are in contact with the lower plate portions 13 and 13. The upper shutter members 6 and 6 correspond to the upper limits of the lower plate portions 13 and 13 of the product receiving shutter members 11 and 11 (connection portions with the upper plate portions 12 and 12 which are swash plates), and the lower shutter members 8 and 8 are It corresponds to the lower limit (free lower end) of the lower plate portions 13 and 13 of the product receiving shutter members 11 and 11. The horizontal seal members 3 and 3 have not yet come into contact with the lower plate portions 13 and 13 of the product receiving shutter members 11 and 11 and maintain a state slightly separated from the lower plate portions 13 and 13.

FIG. 1D shows a situation in which the lateral sealing operation of the lateral sealing device 2 further progresses from the state shown in FIG. 1C, and the lateral sealing device 2 starts descending. At this time, the tubular packaging material Ft is not vertically fed and is stopped. That is, the lower shutter members 8 and 8 of the horizontal seal shutter device 5 pass through the lower end portions of the lower plate portions 13 and 13 of the product receiving shutter members 11 and 11 and then are continuously crushed flatly extending downward from the lower end portions. The cylindrical packaging material Ft is sandwiched and abutted against the tubular packaging material Ft, but the lower shutter members 8 and 8 are flatly crushed between the tips 9 and 9. Continue the descending operation while maintaining a small gap that allows the tubular packaging material Ft to pass through. The upper shutter members 6 and 6 of the horizontal seal shutter device 5 have the lower plate portions 13 and 13 in a state where the tip portions 7 and 7 approach or abut on the lower plate portions 13 and 13 of the product receiving shutter members 11 and 11. Continue the descending motion along. The horizontal seal members 3 and 3 also do not abut on the lower plate portions 13 and 13 of the product receiving shutter members 11 and 11 and continue the descending operation while maintaining a slightly separated state.

FIG. 1 (e) shows a situation in which the horizontal sealing operation of the horizontal sealing device 2 further progresses from the state shown in FIG. 1 (d), and the horizontal sealing device 2 finishes descending. That is, when the upper shutter members 6 and 6 of the horizontal seal shutter device 5 have passed the lower limit of the lower plate portions 13 and 13 of the product receiving shutter members 11 and 11, the flatly crushed tubular packaging material Ft is sandwiched. At this point, the lateral sealing device 2 finishes descending. Both the horizontal seal members 3 and 3 and the horizontal seal shutter device 5 reach below the product receiving shutter device 10. From the state shown in FIG. 1 (d) to the state shown in FIG. 1 (e), the lower shutter members 8 and 8 of the horizontal seal shutter device 5 are formed from the tubular packaging material Ft in which the product W1 has already been filled. Even if the product W1 is present in the upper part of the bag B by squeezing the upper part of the bag B, the product W1 is surely placed in the upper part of the bag B because the product W1 is pushed into the bag B. A region C that does not exist in is formed. At the end of the descent of the lateral seal device 2, the product receiving shutter members 11 and 11 start the opening operation so as to be away from each other, while the lateral seal members 3 and 3 move toward the region C where the ironing is performed. The closing operation is started to apply the horizontal seal.

FIG. 1 (f) shows a situation in which the horizontal sealing operation of the horizontal sealing device 2 further progresses from the state shown in FIG. 1 (e), and the horizontal sealing device 2 applies the horizontal sealing to the tubular packaging material Ft. That is, the product receiving shutter members 11 and 11 have completed the opening operation and are separated from the tubular packaging material Ft. Regarding the horizontal seal shutter device 5, the upper shutter members 6, 6 and the lower shutter members 8, 8 abut and press the crushed tubular packaging material Ft at the respective tip portions 7, 7; 9, 9. In this state, the horizontal sealing members 3 and 3 are pressed against the region C of the tubular packaging material Ft on the sealing surfaces 4 and 4 to be pressurized and heated, and the tubular packaging material Ft is heat-sealed. Is given. The bag B is manufactured as a bag package Bp containing the product W1 inside. A cutter mechanism is incorporated in the horizontal seal members 3 and 3, and the cutter mechanism is operated while the horizontal seal members 3 and 3 pressurize and heat the tubular packaging material Ft to operate the bag package Bp. Is cut and separated from the tubular packaging material Ft.

FIG. 1 (g) shows a situation in which the horizontal sealing operation of the horizontal sealing device 2 further progresses from the state shown in FIG. 1 (f), the horizontal sealing device 2 opens, and is separated from the tubular packaging material Ft. There is. That is, the horizontal seal device 2 opens the horizontal seal members 3, 3 and the upper and lower shutter members 6, 6; 8, 8 so as to be separated from each other from the state of the seal cut, and further, as shown in FIG. 1 (d). It rises by the distance descended from the position shown to the position shown in FIG. 1 (e). The lateral seal members 3 and 3 are slightly retracted from the lateral seal shutter device 5 at the initial stage of the opening operation, and return to the original positions shown in FIG. 1A when the opening operation is completed. The upper plate portions 12 and 12 of the product receiving shutter members 11 and 11 have been described as straight swash plates, respectively, but they may be concave plates that match the shape of the bulge at the bottom of the bag.

FIG. 2 is a diagram showing a second embodiment of the vertical bag-making filling and packaging machine according to the present invention. The vertical bag-making filling and packaging machine 1b shown in FIG. 2 is a product via a tubular packaging material Ft between the lower plate portions 13 and 13 when the product receiving shutter members 11 and 11 of the product receiving shutter device 10 are closed. W2 (in this example, for the sake of explanation, it is an elongated rod-shaped product, but the product is not limited to this) is sandwiched. Since the product W2 is sandwiched, the tubular packaging material Ft cannot be completely flatly crushed. In this case, the horizontal seal members 3 and 3 and the horizontal seal shutter device 5 correspond to the state (e) in the example shown in FIG. 1, and the positions are lowered below the lower limit of the product receiving shutter members 11 and 11. However, the upper shutter members 6 and 6 are not completely closed because the product W2 is sandwiched between the tubular packaging materials Ft.

Therefore, in the second embodiment of the vertical bag-making filling and packaging machine, the control device 20, the sensor 21, and the notification means 22 are provided, and the position where the horizontal seal shutter device 5 is lowered in the vertical direction ZZ by the sensor 21 is determined. Despite the fact that it occupies, it is possible to detect that the positions of the upper shutter members 6 and 6 in the front-rear direction XX are not completely closed. The control device 20 determines that the product W2 is sandwiched between the product receiving shutter members 11 and 11 based on the position information of the horizontal seal shutter device 5 in the vertical direction ZZ and the detection information from the sensor 21. Therefore, the danger of biting of the product W2 in the horizontal seal members 3 and 3 is notified by the notification means 22, and the biting of the product W2 can be prevented by interrupting or stopping the operation of the packaging machine. The notifying means 22 notifies the worker or the like by displaying an image, turning on a light, generating a sound, or the like.

FIG. 3 is a diagram showing a third embodiment of the vertical bag-making filling and packaging machine according to the present invention. FIG. 3A is a diagram showing a state in which the horizontal sealing device 2 of the third embodiment is performing a sealing operation, and FIG. 3B is a product receiving shutter device 30 from the state shown in FIG. 3A. 3 (c) is a perspective view showing a part of the product receiving shutter member 31 used in this embodiment in a cross section. FIG. 3D is a diagram showing the behavior of the tubular packaging material Ft when the product W3 is lightweight, and FIG. 3E is a state in which the product receiving shutter device 30 is opened from the state of FIG. 3D. It is a figure which shows.

Even in a vertical bag-making filling and packaging machine provided with the product receiving shutter device 10, when the product W3 is lightweight, the horizontal sealing device 2 is located below the product receiving shutter device 10 as shown in FIG. 3 (d). Despite being closed in position, the product W3 is unable to sink while expanding the bottom of the tubular packaging material Ft due to its light weight. Therefore, the bottom portion of the tubular packaging material Ft does not abut on the product receiving shutter members 11 and 11, and the product receiving shutter members 11 and 11 do not receive the product W3. Even if the product receiving shutter members 11 and 11 open from this state and move away from the tubular packaging material Ft, the product W3 is piled up high on the bottom of the tubular packaging material Ft as shown in FIG. 3 (e). There is a risk that the product W3 will be caught between the horizontal sealing members 3 and 3 during the next sealing operation of the horizontal sealing device 2, or the bag making filling and packaging machine 1c may stop operating in anticipation of the biting. ..

Therefore, in the third embodiment, the product receiving shutter device 30 has a function of sucking the film of the tubular packaging material Ft. That is, as shown in FIG. 3C, the product receiving shutter members 31 and 31 of the product receiving shutter device 30 are composed of a laminated plate structure in which two thin plates 32 and 33 are stacked with a gap g between them. ing. Between the thin plates 32 and 33, a plurality of spacers 34 having the same thickness are arranged at predetermined positions in order to form a laminated plate structure including the periphery, and a gap g is maintained. A large number of suction holes 35 (only partially marked) are formed in the thin plate 32 on the side facing the tubular packaging material Ft in a predetermined arrangement, and an external negative pressure source is connected to the gap g. ing. Each product receiving shutter member 31 of the product receiving shutter device 30 has a structure in which the upper plate portion 36 and the lower plate portion 37 are bent, as in the first embodiment and the second embodiment.

As shown in FIG. 3A, the product receiving shutter members 31 and 31 of the product receiving shutter device 30 have a large number of suction holes 35 in the tubular packaging material Ft when receiving the product W3 charged through the filling cylinder 62. By sucking the bottom of the product (indicated by Su), it has a function of forcibly expanding the bottom of the tubular packaging material Ft regardless of the weight of the lightweight product W3. The product W3 has good subduction to the bottom where the tubular packaging material Ft has spread. Further, as shown in FIG. 3B, even when the product receiving shutter device 30 is opened, each product receiving shutter plate 31 opens while sucking the portion of the tubular packaging material Ft that has been held down until then. The bottom portion of the tubular packaging material Ft bulges outward (indicated by Ex), and the product W3 further improves the sinking of the tubular packaging material Ft into the expanded bottom portion. Since the accommodation height at the bottom of the tubular packaging material Ft of the product W3 is low, when the horizontal sealing members 3 and 3 sandwich the tubular packaging material Ft and perform the horizontal sealing, the horizontal sealing members 3 and 3 are used for the product W3. It is possible to further avoid biting.

FIG. 4 is a diagram showing a fourth embodiment of the vertical bag-making filling and packaging machine according to the present invention. In the fourth embodiment, the product receiving shutter device is not only opened and closed back and forth, but also moved up and down in the vertical direction ZZ, so that the tubular packaging material Ft is fed laterally even if it is faster than the product W4 is dropped. This is intended to prevent the product from being caught in the sealing device 2. FIG. 4A is a diagram showing the operation of the horizontal sealing device 2 and the product receiving shutter device 40 of the fourth embodiment, and FIG. 4B is a diagram showing the operation of the product receiving shutter device 40 from the state shown in FIG. 4A. It is a figure which shows the state which was lowered. FIG. 4C is a diagram illustrating a situation in which the tubular packaging material Ft is fed faster than the product W4 is dropped, and FIG. 4D is a horizontal seal in the case of FIG. 4C. It is a figure explaining the state of biting of the product in the members 3, 3.

As shown in FIG. 4C, when the packaging speed of the vertical bag-making filling and packaging machine is increased, the vertical feeding speed Vf when the cylindrical packaging material Ft to be intermittently fed becomes faster, and the product W4 The drop may not catch up with the feed of the tubular packaging material Ft. That is, as shown in FIG. 4D, the drop of the product W4 cannot catch up with the tubular packaging material Ft vertically fed at the vertical feed rate Vf, and the product W4 varies in the tubular packaging material Ft and is delayed. There is a possibility that the product W4 that falls will be caught between the horizontal sealing members 3 and 3 in the next sealing operation of the horizontal sealing device 2.

Therefore, in the vertical bag-making filling and packaging machine 1d of the fourth embodiment, the product receiving shutter device 40 is packed in a tubular shape with the product receiving shutter members 41 and 41 closed and the tubular packaging material Ft sandwiched therein. The material Ft is lowered at the same speed as the vertical feed speed Vf. As shown in FIG. 4A, in the product receiving shutter device 40, the product receiving shutter members 41 and 41 are closed to sandwich the tubular packaging material Ft, and the product receiving shutter device 40 is formed at the tip end (lower end) of the tubular packaging material Ft. With the product W4 housed in the bag B, the product W4 descends together with the tubular packaging material Ft. Even if there is a product W4 in which the product W4 varies in the tubular packaging material Ft and falls with a delay, such a product W4 is closed by the product receiving shutter members 41 and 41 as shown in FIG. 4 (b). It is fastened in the bag B. The sealing operation of the horizontal sealing device 2 is the same as in the case of the first embodiment, and the horizontal sealing is performed after abutting on the product receiving shutter members 41 and 41 and further squeezing the upper part of the bag B. The product W4 does not rise to the height position of the horizontal sealing device 2, and therefore, is not bitten between the horizontal sealing members 3 and 3 during the sealing operation of the horizontal sealing device 2.

In the case of the fourth embodiment, there is a minute gap between the product receiving shutter members 41 and 41 (between the lower plate portions 43 and 43) of the product receiving shutter device 40 so that the flat tubular packaging material Ft can pass through. Therefore, the descending speed of the product receiving shutter device 40 does not necessarily have to be the same as the vertical feed rate Vf of the tubular packaging material Ft. By making the descending speed of the product receiving shutter device 40 faster than the vertical feed rate Vf of the tubular packaging material Ft, the product receiving shutter device 40 is provided with the lower plate portions 43, 43 of the product receiving shutter members 41, 41. , The upper part of the bag B can be squeezed. The packaging material on the upper part of the bag B will be leveled, and wrinkles can be prevented at the time of horizontal sealing.

Further, in the case of the fourth embodiment, the product receiving shutter device 40 is naturally required to perform a box motion of returning to the original position by performing an opening operation and an ascending operation after the descending operation. Therefore, by causing the horizontal sealing device 2 to perform a box motion in accordance with the operation of the product receiving shutter device 10, the intermittent operation type vertical bag-making filling and packaging machine 1d can be used without stopping the feeding of the packaging material. It can be operated as a continuously operating type bag-making filling and packaging machine that continuously manufactures bag-packaging bodies.

FIG. 5 is a diagram showing a fifth embodiment of the vertical bag-making filling and packaging machine according to the present invention. In the fifth embodiment, as in the case of the fourth embodiment, the product receiving shutter device 50 is moved in the vertical direction, but the product receiving shutter device 50 is closed and the tubular packaging material Ft is sandwiched therein to fill the filling cylinder 62. This is an example in which the product W5, which is thrown into the container and falls, is lowered together with the tubular packaging material Ft to enable an operation of increasing the packaging speed. 5 (a) to 5 (c) show the operation of the vertical bag-making filling and packaging machine 1e according to the fifth embodiment in order, and FIGS. 5 (d) to 5 (f) show the product receiving shutter device. It is a figure which shows the operation which causes the inconvenience when it is not provided in order.

FIG. 5D shows a vertical bag-making filling / packaging machine not provided with a product receiving shutter device, in which the product W5 is loaded at the bottom of the tubular packaging material Ft, and the horizontal sealing device 2 is used for horizontal sealing. Indicates just before being applied. The product W5 for the next packaging has not yet been introduced. FIG. 5 (e) shows a situation in which the horizontal sealing operation by the horizontal sealing device 2 is started. In the filling cylinder 62, the product W5 charged for the next packaging is descending in the filling cylinder. In FIG. 5 (f), the horizontal sealing by the horizontal sealing device 2 is executed, and the horizontal sealing device 2 forms the upper horizontal sealing of the bag package Bp on the tubular packaging material Ft, and the following A situation is shown in which a lower lateral seal is formed for bag B of the bag package. Since the lower horizontal seal is formed, the product W5 for the next packaging falling in the filling cylinder 62 or the tubular packaging material Ft can land on the bottom of the bag.

As can be seen from FIGS. 5 (d) to 5 (f), in the case of a packaging machine not provided with a product receiving shutter device, to the bottom of the tubular packaging material Ft of the product W5 for the next packaging. As for the timing of the start of landing, the horizontal sealing device 2 (horizontal sealing members 3, 3 or upper shutter members 6, 6) starts the closing operation to sandwich the tubular packaging material Ft, or the horizontal sealing device 2 is used for tubular packaging. It can be set only after the horizontal seal is applied to the material Ft. Further, even if there is a product W5 that first lands on the bottom of the tubular packaging material Ft, some subsequent products W5 are still falling. As described above, there are some limitations in increasing the packaging speed for the vertical bag-making filling and packaging machines shown in FIGS. 5 (d) to 5 (f).

In the bag-making filling and packaging machine 1e of the fifth embodiment, the product receiving shutter device 50 that can be moved in the vertical direction is provided, and even before the horizontal sealing device 2 is closed, the product receiving shutter device 50 is equipped with the product W5. By providing a function to receive landing, the product receiving shutter device 50 can land the product W5, which has been loaded and filled while the tubular packaging material Ft is being vertically fed, to make a bag. We are trying to increase the packaging speed of the filling and packaging machine 1e. As shown in FIG. 5A, the product receiving shutter device 50 includes product receiving shutter members 51, 51 made of a pair of facing diagonal plates. The product receiving shutter members 51 and 51 are not provided with the lower plate portion 13 unlike the product receiving shutter members 10 of the first embodiment and the like. When the product receiving shutter device 50 is closed, the tip of the swash plate forms a gap sufficient to sandwich the flatly crushed tubular packaging material Ft.

In the state shown in FIG. 5A, the horizontal sealing device 2 is in the open state and waits for the passage of the tubular packaging material Ft containing the product W5 extending below the product receiving shutter members 51 and 51. The product W5 for the next packaging, which has been put into the filling cylinder 62, has been landed in the tubular packaging material Ft by the product receiving shutter device 50 which is in a closed state directly under the filling cylinder 62. The landed product W5 does not pass through the closed product receiving shutter device 50 and further fall into the previously formed bag B. The product receiving shutter device 50 descends together with the tubular packaging material Ft while remaining in the closed state.

As shown in FIG. 5B, the product receiving shutter device 50 and the tubular packaging material Ft are stopped by the upper portion of the previously formed bag B descending to the height position of the horizontal sealing device 2. Some of the products W5 for the next packaging still fall in the filling cylinder 62 and the tubular packaging material Ft, and the product receiving shutter device 50 receives these landings. After that, as shown in FIG. 5C, the horizontal sealing device 2 performs a sealing operation, and laterally seals the tubular packaging material Ft at a position directly below the product receiving shutter device 50. During the sealing operation of the horizontal sealing device 2, the dropping of the product W5 for the next packaging into the tubular packaging material Ft is completed.

As described above, in the bag-making filling and packaging machines shown in FIGS. 5 (d) to 5 (f), the horizontal sealing device 2 received the landing of the product W5 for the next packaging, so that the product W5 fell. It was not possible to advance the start timing and the timing of the opening operation of the horizontal sealing device 2, and there was a limit to improving the packaging speed of the packaging machine. According to the bag-making filling and packaging machine 1e of the fifth embodiment shown in FIGS. 5A to 5C, the role of receiving the drop / landing of the product W5 for the next packaging is not the horizontal sealing device 2. Since the product receiving shutter device 50 is responsible, the product receiving shutter device 50 can receive the drop / landing of the product W5 without waiting for the closing operation of the horizontal sealing device 2, and after the product W5 has landed, the next It is possible to secure a longer time until the horizontal seal, absorb more variation in the fall time of the product W5 in the tubular packaging material Ft, and significantly reduce the probability of product biting in the horizontal seal device 2. can. The lateral sealing device 2 can start the opening operation after the required sealing time has elapsed (usually, all the products W5 have completed landing). In the fifth embodiment, as shown in the figure, the product receiving shutter members 51, 51 are not provided with the lower plate portion, but even if the product receiving shutter members 51, 51 are provided with the lower plate portion, the first embodiment and the like are provided. Can operate in the same way as.

Even if the structure of the product receiving shutter device is a product receiving shutter device having only a swash plate without a lower plate portion as shown in the fifth embodiment, the horizontal sealing device cooperates with such a product receiving shutter device. It is also possible to use such a bag-making filling and packaging machine. FIG. 6 shows the bag-making filling and packaging machine 1f of the sixth embodiment. FIG. 6 is a diagram showing a main part of a bag-making filling / packaging machine as a sixth embodiment, and shows a state in which the horizontal sealing device 52 cooperates with the product receiving shutter device 53 in FIGS. 6 (a) to 6 (c). Are shown in order. The product receiving shutter members 54, 54 of the product receiving shutter device 53 are bent in the middle, but basically, the swash plate 55, 55 (the concave curved surface following the bottom shape of the tubular packaging material Ft), which is the upper plate portion, is formed. It may be a curved plate having a curved plate), and does not have a lower plate portion 13 extending vertically downward as the product receiving shutter device 10 shown in the first embodiment has.

In the horizontal sealing device 52, the upper shutter members 56, 56 and the tip portions 59 of the lower shutter members 58, 58 have less friction when sliding with the product receiving shutter members 54, 54 and the tubular packaging material Ft. , A shape with a rounded or smooth curved surface such as a part of a cylindrical surface, or a small roll that can be rolled. In the lateral sealing device 52, the followability is such that the upper shutter members 56, 56 and the lower shutter members 58, 58 always abut on the product receiving shutter members 54, 54 from the outside when the lowering operation is performed. It is equipped with. When the product receiving shutter device 53 is in the closed state, a gap is formed in the lower ends of the product receiving shutter members 54, 54 so as to allow the tubular packaging material Ft sandwiched flatly to pass through.

In FIG. 6A, in the horizontal sealing device 52, the upper shutter members 56, 56 and the tip portions 59 to 59 of the lower shutter members 58, 58 are outside the product receiving shutter members 54, 54 of the product receiving shutter device 53. The descent operation of the circulation motion is in progress in the state of being in contact with the product. The horizontal sealing device 52 basically includes the horizontal sealing members 3 and 3 as in the previous embodiment, but in the state shown in FIG. 6A, the horizontal sealing members 3 and 3 are provided. It is located away from the product receiving shutter members 54, 54 and does not come into contact with the product receiving shutter members 54, 54. The upper shutter members 56, 56 and the lower shutter members 58, 58 advance and retreat from the horizontal seal members 3, 3 in the front-rear direction XX with respect to the outer surface of the swash plate 55, 55, which is the product receiving shutter members 54, 54. It has follow-up operability. The upper shutter members 56, 56 are at positions retracted from the lateral seal members 3, 3, the lower shutter members 58, 58 are located at positions advanced from the lateral seal members 3, 3, and their respective tip portions 59 to 59 are swash plates. It is in contact with the outer surfaces of 54 and 54.

In FIG. 6B, the lateral sealing device 52 is further descending from the state shown in FIG. 6A in the circulation motion, and the tip portions 59 , 59 of the lower shutter members 58, 58 are the product receiving shutter members 54, Continuing from the state of being in contact with the lower end portion of 54, the tubular packaging material Ft extending downward from the lower end portion and extending from the lower end portions of the product receiving shutter members 54, 54 is hit by a flatly crushed tubular packaging material Ft. It is in contact and descending. By this operation, the lower shutter members 58, 58 are formed at the portion of the tubular packaging material Ft extending downward from the lower ends of the product receiving shutter members 54, 54, that is, at the tip of the tubular packaging material Ft. The squeezing operation is performed on the upper part of the bag B, and even if the product W6 is present on the upper part of the bag B, such a product W6 can be pushed into the bag B.

In FIG. 6C, the lateral sealing device 52 is further descending in the circulation motion, and the upper shutter members 56, 56 are also lowered from the lower ends of the product receiving shutter members 54, 54, like the lower shutter members 58, 58. Separated, it is in contact with the flatly crushed tubular packaging material Ft just below the lower ends of the product receiving shutter members 54, 54. While the upper shutter members 56, 56 and the lower shutter members 58, 58 hold down the flatly crushed tubular packaging material Ft, the horizontal sealing members 3 and 3 advance in the front-rear direction to form the tubular packaging material Ft. Apply a horizontal seal. The product receiving shutter members 54, 54 are maintained in a closed state, and the product W6 for the next packaging, which is put into the filling cylinder 62, is received and supported via the tubular packaging material Ft.

Subsequent operations of the lateral seal device 52 and the product receiving shutter device 53 can be the same as in the previous embodiment such as the first embodiment. The product receiving shutter members 54, 54 open separately from the operation of the horizontal sealing device 2, return to their original positions in accordance with the circulation motion of the horizontal sealing device 2, and pass between the opened product receiving shutter members 54, 54. Allows paper feeding of the tubular packaging material Ft. The sixth embodiment has been described as an intermittent operation type packaging machine, but after the product receiving shutter device 53 is opened, the horizontal sealing device 52 descends together with the tubular packaging material Ft, and horizontal sealing is performed during the descending. Therefore, it is possible to make a continuous operation type packaging machine with a sufficient horizontal sealing time.

1a, 1b, 1c, 1d, 1e Vertical bag making filling and packaging machine 2 Horizontal sealing device 3, 3 Horizontal sealing member 4, 4 Sealing surface 5 Horizontal sealing shutter device 6, 6 Upper shutter member 7, 7 Tip part 8, 8 Lower shutter member 9, 9 Tip 10 Product receiving shutter device 11, 11 Product receiving shutter member 12 Upper plate part 13 Lower plate part 20 Control device 21 Sensor 22 Notification means 30 Product receiving shutter member 31, 31 Product receiving shutter member 32, 33 Thin plate 34 Spacer 35 Suction hole 36 Upper plate part 37 Lower plate part 40 Product receiving shutter device 41, 41 Product receiving shutter member 43, 43 Lower plate part 50 Product receiving shutter device 51, 51 Product receiving shutter member 52 Horizontal sealing device 53 Product Receiving shutter device 54, 54 Product receiving shutter member 55, 55 Slanted plate 56, 56 Upper shutter member 58, 58 Lower shutter member 59 Tip 60 Vertical bag making filling packaging machine 61 Former 62 Filling cylinder 63 Vertical sealing device 64 Packaging material Feeding device 65,66 Roller pair 67 Horizontal seal / cutter device 68,68 Horizontal seal heater member 69 Cutter mechanism 70,70 Upper shutter member 71,71 Lower shutter (ironing) member 72,72 Receiving plate 80,80 Heat cutting part (Horizontal seal member) 81,81 Bag pull-down part 82,82 Elastic rubber body XX Front-back direction ZZ Vertical direction Fw Band-shaped packaging material fe, fe Side edge part Ft Cylindrical packaging material B Bag C area Bp bag Package W, W1, W2, W3, W4, W5, W6 Product Vf Vertical feed speed g Gap

Claims (11)

A bag package containing the package is manufactured by laterally sealing the tubular packaging material that is vertically fed around the filling cylinder and into which the product is loaded through the filling cylinder by a horizontal sealing device. The sealing device includes two horizontal sealing members arranged facing each other, and an upper shutter member and a lower shutter member arranged on the upper side and the lower side of the horizontal sealing member, respectively, and approaches the tubular packaging material. Then, the tubular packaging material is sandwiched between the upper shutter member and the lower shutter member, and the lowering operation is performed. After the sealing is performed, the circulation follows a path away from the tubular packaging material and returned to the original position. In a vertical bag filling and packaging machine that makes motion
A product receiving shutter that opens and closes under the filling cylinder separately from the opening and closing operation of the horizontal sealing device, and in the closed state, a gap is formed at the lower end just for passing the tubular packaging material sandwiched flatly. Members are arranged,
At least the lower shutter member comes into contact with the product receiving shutter member during the closing operation during the circulation motion performed by the lateral sealing device, and then from the state of contact with the lower end portion of the product receiving shutter member. Subsequently, it shifts to a state of contact with the tubular packaging material extending downward from the lower end portion, and squeezes the tubular packaging material extending downward from the lower end portion. Bag filling and packaging machine. The product receiving shutter member has an upper portion whose inner surface side is formed as a slanted or concave curved surface following the bottom portion of the tubular packaging material, and an upper portion which is connected to the upper portion and extends directly downward so that the inner surface side becomes a flat surface. The vertical bag-making filling according to claim 1, wherein the vertical bag-making filling is formed, and in the closed state, the space between the flat surfaces is provided with a lower portion as the gap for passing the tubular packaging material. Packaging machine. The product receiving shutter member is formed on an inclined surface or a concave curved surface on the inner surface side following the bottom portion of the tubular packaging material, and in the closed state, the space between the lower end edges is only passed through the tubular packaging material. The vertical bag-making filling and packaging machine according to claim 1, which comprises the gap. Any one of claims 1 to 3, wherein the product receiving shutter member opens after the upper shutter member moves below the product receiving shutter member during the circulation motion of the lateral sealing device. The vertical bag-making filling and packaging machine described in item 1. The product receiving shutter member includes a sensor for detecting whether or not the gap is wider than the gap for passing the tubular packaging material when the product receiving shutter member closes. The vertical bag-making filling and packaging machine according to claim 1, wherein the biting of the product by the horizontal sealing member is predicted depending on the case where the detection result is negative. The vertical bag-making filling according to claim 1, wherein the product receiving shutter member is connected to a negative pressure source and has a large number of suction holes formed on the side facing the tubular packaging material. Packaging machine. The vertical type product according to claim 1, wherein the product receiving shutter member descends from a position directly below the filling cylinder to a position at a height at which the horizontal sealing device performs the closing operation in a closed state. Bag filling and packaging machine. The vertical bag-making filling and packaging machine according to claim 7, wherein the lowering speed when the product receiving shutter member performs the lowering operation is the same as the vertical feeding speed of the tubular packaging material. The vertical bag-making filling and packaging machine according to claim 7, wherein the lowering speed when the product receiving shutter member performs the lowering operation is faster than the vertical feeding speed of the tubular packaging material. .. In the vertical bag-making filling and packaging machine, after the horizontal sealing device performs the lowering operation, the tubular packaging material is subjected to the lateral direction while the vertical feeding of the tubular packaging material is stopped. The vertical bag-making filling / packaging machine according to any one of claims 1 to 9, which comprises an intermittent operation type bag-making filling / packaging machine for sealing. The vertical bag-making filling and packaging machine is used in the tubular packaging material while the horizontal sealing device performs an additional lowering operation together with the vertical feed of the tubular packaging material after the lowering operation. The vertical bag-making filling / packaging machine according to any one of claims 1 to 9, comprising a continuously operating type bag-making filling / packaging machine that seals in the horizontal direction.

Images