CN220076909U - Bagging and forming device for packaging machine - Google Patents

Abstract

A bagging and forming device for a packaging machine comprises a lower supporting plate, an upper pressing plate, an opening and closing control mechanism, a forming push head and a translation mechanism; at least two upper guide strips are arranged on the bottom surface of the upper pressing plate, and at least two lower guide strips are arranged on the top surface of the lower supporting plate; the forming push head is arranged between the upper pressing plate and the lower supporting plate, an air suction channel is arranged in the forming push head, and at least one air suction hole communicated with the air suction channel is arranged on the top surface, the bottom surface, the left side surface, the right side surface and the rear side surface of the forming push head; at least two upper guide grooves are also arranged on the top surface of the forming push head, and each upper guide groove is correspondingly matched with a corresponding upper guide bar; at least two lower guide grooves are also arranged on the bottom surface of the forming push head, and each lower guide groove is correspondingly matched with a corresponding lower guide bar. The bagging and forming device not only can ensure that stacked sheet products are completely and smoothly pushed into the packaging bag, but also can realize the adsorption forming of the opening of the packaging bag, so that the packaging bag can smoothly form a sealed folding part.

Description

Bagging and forming device for packaging machine

Technical Field

The utility model relates to the technical field of packaging machines, in particular to a bagging and forming device for a packaging machine.

Background

For sheet products such as tissues, diapers, sanitary napkins, etc., the sheet products are generally stacked according to the number required by the specifications of the products, and then the stacked products are sent into a packaging bag by a pushing mechanism and are packaged and sealed. When the packaging bag is sealed, the corner inserting mechanism is required to be used for inserting corners at the opening, so that the smooth sealing is facilitated.

At present, most manufacturers adopt a mode of driving a triangular corner inserting plate by a driving device (for example, a sealing corner inserting mechanism of the Chinese patent application No. CN 201620892523.6) when the corner inserting action is required to be executed, namely, the triangular corner inserting plate is driven by the driving device to push from the edge of a bag mouth of a packaging bag to the middle, and in the process of pushing the triangular corner inserting plate to the middle, the triangular corner inserting plate is folded into the inner side of the bag mouth by pressing a bag mouth film of the packaging bag to form a sealing folding part, and then the sealing mechanism is assembled up and down to seal the packaging bag.

In actual packaging production, when a pushing mechanism advances a product in a laminated shape into a bag, the situation that the laminated product is not orderly stacked and even exposed at a sealing position of a packaging bag is easy to occur, particularly, two products near the positions of an upper bag wall and a lower bag wall easily enter a gap between a pushing head of the pushing mechanism and the upper bag wall and the lower bag wall; and because the films on the left side and the right side of the bag mouth of the packaging bag are in direct contact with the triangular inserting angle plate, the films on the left side and the right side of the bag mouth are easily scratched in the inward pushing process of the triangular inserting angle plate, and in addition, the films on the left side and the right side of the bag mouth are easy to form folds at fold lines after the inserting angle is finished due to uneven stress, so that the flatness and the aesthetic degree of the sealing position are affected.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a bagging and forming device for a packaging machine, which not only can ensure that stacked sheet products are completely and smoothly pushed into a packaging bag, but also can realize the adsorption forming of the opening of the packaging bag so as to smoothly form a folding part of a seal. The technical scheme adopted is as follows:

a bagging and forming device for a packaging machine comprises a lower supporting plate, an upper pressing plate, an opening and closing control mechanism for driving the upper pressing plate and the lower supporting plate to open and close, a forming push head and a translation mechanism for driving the forming push head to translate back and forth; the upper pressing plate and the lower supporting plate are arranged side by side up and down, at least two upper guide strips running back and forth are arranged on the bottom surface of the upper pressing plate, and at least two lower guide strips running back and forth are arranged on the top surface of the lower supporting plate; the forming push head is arranged between the upper pressing plate and the lower supporting plate, an air suction channel is arranged in the forming push head, and at least one air suction hole communicated with the air suction channel is arranged on the top surface, the bottom surface, the left side surface, the right side surface and the rear side surface of the forming push head; the top surface of the forming push head is also provided with at least two upper guide grooves which run back and forth, and each upper guide groove is correspondingly matched with a corresponding upper guide strip respectively; the bottom surface of the forming push head is also provided with at least two lower guide grooves which run back and forth, and each lower guide groove is correspondingly matched with the corresponding lower guide strip.

The front and the rear are respectively: and the material pushing direction of the forming pushing head is from front to back and from slow to back.

In general, the above-mentioned bag forming apparatus is provided in front of a bag opening apparatus of a packing machine, which can fully open the bag opening of a packing bag and make the opened bag opening of the packing bag be positioned right behind a space between an upper platen and a lower platen. The air suction channel of the forming push head is connected with the exhaust fan through the exhaust pipe, and the exhaust fan can suck air through the exhaust pipe to form negative pressure in the air suction channel of the forming push head.

When the folding type paper diaper works, a stacked sheet product (such as a paper diaper) is positioned on the lower supporting plate, the opening and closing control mechanism drives the upper pressing plate and the lower supporting plate to perform closing action until each upper guide strip on the upper pressing plate and each lower guide strip on the lower supporting plate respectively support the top and the bottom of the stacked sheet product (at the moment, the space between the upper pressing plate and the lower supporting plate is opposite to the bag mouth of the packaging bag opened by the bag mouth opening device); then, the forming pushing head is driven by the translation mechanism to translate from front to back and enter between the upper pressing plate and the lower supporting plate (at the moment, each upper guide strip of the upper pressing plate is respectively positioned in a corresponding upper guide groove and can slide backwards along the upper guide groove, each lower guide strip of the lower supporting plate is respectively positioned in a corresponding lower guide groove and can slide backwards along the lower guide groove), and the forming pushing head pushes the forming pushing head to move from front to back together after contacting with the stacked sheet-shaped product, and enters the packaging bag from the bag mouth of the packaging bag; then, the exhaust fan is used for exhausting air through the exhaust pipe and the exhaust channel of the forming push head to form negative pressure at each air suction hole on the forming push head so as to suck air in the packaging bag, and the upper bag wall, the lower bag wall, the left bag wall and the right bag wall of the packaging bag are respectively clung to the top surface, the bottom surface, the left side surface and the right side surface of the forming push head to form a sealed folding part; and finally, the translation mechanism drives the forming push head to translate forward for resetting, and simultaneously, the sealing mechanism of the packaging machine is used for closing the upper and lower dies to seal the packaging bag.

In the process that the forming push head pushes the stacked sheet products between the upper pressing plate and the lower supporting plate to move towards the bag mouth of the packaging bag, as the upper guide strips on the upper pressing plate and the lower guide strips on the lower supporting plate respectively support the top and the bottom of the stacked sheet products, gaps are formed between the top of the stacked sheet products and the bottom surface of the upper pressing plate, gaps are formed between the bottom of the stacked sheet products and the top surface of the lower supporting plate, and the forming push head is matched with the upper pressing plate, the lower supporting plate and the forming push head, on one hand, the forming push head can be guided forwards and backwards, so that the pushing direction of the forming push head is more stable, on the other hand, the sheet products close to the positions of the upper and lower bag walls can be blocked, the sheet products are prevented from entering the gaps between the upper pressing plate and the top surface of the forming push head or the gaps between the lower supporting plate and the bottom surface of the forming push head, and the top and the bottom edges of the stacked sheet products are respectively separated from the top edges and the bottom edges of the rear side of the forming push head, and the forming push head can be pushed into the packaging bag. After the forming push head pushes the stacked sheet products into the packaging bag, negative pressure is formed at each suction hole by exhausting air from an air exhausting channel of the forming push head, and when air in the packaging bag is sucked away, the upper bag wall, the lower bag wall, the left bag wall and the right bag wall of the packaging bag are respectively clung to the top surface, the bottom surface, the left side surface and the right side surface of the forming push head, so that a sealed folding part is formed.

As a preferable scheme of the utility model, the front side surface of the forming push head is provided with a connecting flange, and the connecting flange is arranged on the power output end of the translation mechanism. The translation mechanism can adopt a translation cylinder or a translation electric cylinder, the cylinder body of the translation cylinder or the translation electric cylinder is arranged on the frame of the packaging machine, the connecting flange is used for connecting a piston rod of the translation cylinder or a push rod of the translation electric cylinder, and the connecting flange and the forming push head can be driven to translate forwards or backwards for a certain distance through the extension and retraction of the piston rod of the translation cylinder or the push rod of the translation electric cylinder.

As a preferable scheme of the utility model, the left side surface of the forming push head is provided with an upper left inclined surface which gradually inclines rightwards from top to bottom and a lower left inclined surface which gradually inclines leftwards from top to bottom, and the upper edge of the lower left inclined surface is connected with the lower edge of the upper left inclined surface; the right side surface of the forming push head is provided with an upper right inclined surface which gradually inclines rightwards from top to bottom and a lower right inclined surface which gradually inclines leftwards from top to bottom, and the upper edge of the lower right inclined surface is connected with the lower edge of the upper right inclined surface; at least one air suction hole is arranged on each of the upper left inclined plane, the lower left inclined plane, the upper right inclined plane and the lower right inclined plane. By adopting the structure, the cross section of the left side surface and the right side surface of the forming push head is approximately V-shaped; the left side bag wall of wrapping bag can hug closely on the upper left inclined plane, the left lower inclined plane of shaping push head and form the V-arrangement under the negative pressure effect of each suction port on the left surface of shaping push head, and the right side bag wall of wrapping bag can hug closely on the upper right inclined plane, the lower right inclined plane of shaping push head and form the V-arrangement under the negative pressure effect of each suction port on the right surface of shaping push head, can form the folding portion that the wrapping bag sealed from this for the wrapping bag that the packing was come out seals the department level and smooth, pleasing to the eye, promotes the packing effect greatly.

As a further preferable scheme of the utility model, a left strip-shaped groove which runs forwards and backwards is arranged at the joint of the upper edge of the left lower inclined surface and the lower edge of the left upper inclined surface; a right strip-shaped groove which runs forwards and backwards is formed at the joint of the upper edge of the right lower inclined surface and the lower edge of the right upper inclined surface; at least one air suction hole is arranged in each of the left strip-shaped groove and the right strip-shaped groove. Therefore, the left side wall and the right side wall of the packaging bag can form a V shape more smoothly.

As a preferable scheme of the utility model, the top surface of the forming push head is also provided with at least one upper strip-shaped groove which runs left and right, and each upper guide groove is communicated with the upper strip-shaped groove; the bottom surface of the forming push head is provided with at least one left-right lower strip-shaped groove, and each lower guide groove is communicated with the lower strip-shaped groove; at least one air suction hole is arranged in each of the upper strip-shaped groove and the lower strip-shaped groove. Through arranging a plurality of air suction holes in the upper strip-shaped groove, and each upper guide groove is communicated with the upper strip-shaped groove, a larger adsorption surface can be formed on the top surface of the forming push head, and the adsorption force on the upper bag wall of the packaging bag is improved; through set up a plurality of suction holes in lower bar recess, and each lower guide way all communicates with lower bar recess, can form great adsorption face in the bottom surface of shaping push head, improves the adsorption affinity to the wrapping bag lower bag wall.

As a preferable scheme of the utility model, the opening and closing control mechanism comprises a supporting frame, a lifting seat and a lifting mechanism for driving the lifting seat to lift, wherein the upper pressing plate and the lifting mechanism are fixedly arranged on the supporting frame, and the lower supporting plate is arranged on the lifting seat. When the lifting mechanism works, the lifting seat and the lower supporting plate can be driven to ascend or descend through the lifting mechanism, so that the lower supporting plate and the upper pressing plate can be closed or opened.

As a further preferable scheme of the utility model, the lifting mechanism comprises a lifting cylinder, a plurality of guide posts and a plurality of guide sleeves, wherein each guide post is arranged on the lifting seat and extends up and down, each guide sleeve is arranged on the lifting seat and is sleeved on the corresponding guide post respectively, the cylinder body of the lifting cylinder is arranged on the supporting frame, and the piston rod of the lifting cylinder faces upwards and is connected with the lifting seat.

As another preferable scheme of the utility model, the opening and closing control mechanism comprises a supporting frame, a lifting seat and a lifting mechanism for driving the lifting seat to lift, wherein the lower supporting plate and the lifting mechanism are fixedly arranged on the supporting frame, and the upper pressing plate is arranged on the lifting seat. When the lifting mechanism works, the lifting seat and the upper pressing plate can be driven to ascend or descend through the lifting mechanism, so that the lifting seat and the upper pressing plate are close to or far away from the lower supporting plate, and the lower supporting plate and the upper pressing plate can be closed or opened.

As a preferable scheme of the utility model, the bagging forming device further comprises two auxiliary blowing components, the two auxiliary blowing components are arranged at the rear of the upper pressing plate and the lower supporting plate side by side left and right, and the forming pushing head is positioned between the blowing ports of the two auxiliary blowing components. Preferably, the air blowing port of one auxiliary air blowing component faces the connection part of the upper edge of the left lower inclined surface and the lower edge of the left upper inclined surface, and the air blowing port of the other auxiliary air blowing component faces the connection part of the upper edge of the right lower inclined surface and the lower edge of the right upper inclined surface. The auxiliary blowing component can adopt an air nozzle which is connected and communicated with a blowing port of the blower through a blowing pipe, and a switch air valve is arranged on the blowing pipe. After the forming push head pushes the stacked sheet products into the packaging bag, the air suction channel of the forming push head is pumped to form negative pressure at each air suction hole, meanwhile, the switch air valve is opened, air blown out by the air blowing ports of the air blower is blown out from the air blowing ports of the two auxiliary air blowing components after passing through the air blowing pipe and respectively blowing towards the left side surface and the right side surface of the forming push head, and the left side bag wall and the right side bag wall of the auxiliary packaging bag can be clung to the left side surface and the right side surface of the forming push head, so that the left side bag wall and the right side bag wall of the packaging bag form a V shape smoothly.

Compared with the prior art, the utility model has the following advantages:

the bagging and forming device not only can ensure that stacked sheet products are completely and smoothly pushed into the packaging bag, but also can realize the adsorption forming of the opening of the packaging bag, so that the packaging bag can smoothly form a sealed folding part.

Drawings

Fig. 1 is a schematic view of the structure of a first embodiment of the preferred embodiment of the present utility model.

Fig. 2 is a schematic view showing the structure of a molding plug according to a first embodiment of the present utility model.

Fig. 3 is a schematic view showing the cooperation of the lower and upper platens with the forming pusher in accordance with the first embodiment of the present utility model.

Fig. 4 is a schematic view showing a state in which a molding plug performs suction molding on a package bag according to the first embodiment of the present utility model.

Fig. 5 is a schematic view showing a molding plug and two auxiliary blowing members for molding a package in accordance with a second preferred embodiment of the present utility model.

Detailed Description

Example 1

As shown in fig. 1-4, the bagging and forming device for the packaging machine comprises a bottom plate 1, an upper pressing plate 2, an opening and closing control mechanism 3 for driving the upper pressing plate 2 to open and close with the bottom plate 1, a forming push head 4 and a translation mechanism (not shown in the figure) for driving the forming push head 4 to translate back and forth; the upper pressing plate 2 and the lower supporting plate 1 are arranged side by side up and down, at least two upper guide strips 21 running back and forth are arranged on the bottom surface of the upper pressing plate 2, and at least two lower guide strips 11 running back and forth are arranged on the top surface of the lower supporting plate 1; the forming push head 4 is arranged between the upper pressing plate 2 and the lower supporting plate 1, an air suction channel 401 is arranged in the forming push head 4, and at least one air suction hole 402 communicated with the air suction channel 401 is arranged on the top surface 41, the bottom surface 42, the left side surface 43, the right side surface 44 and the rear side surface 45 of the forming push head 4; the top surface 41 of the forming push head 4 is also provided with two upper guide slots 411 which run back and forth, and each upper guide slot 411 is correspondingly matched with the corresponding upper guide strip 21; the bottom surface 42 of the forming push head 4 is also provided with two lower guide grooves 421 running back and forth, and each lower guide groove 421 is correspondingly matched with the corresponding lower guide strip 11.

In this embodiment, the left side surface 43 of the forming push head 4 has an upper left inclined surface 431 gradually inclined rightward from top to bottom and a lower left inclined surface 432 gradually inclined leftward from top to bottom, and a left bar-shaped groove 433 running forward and backward is provided at the junction of the upper edge of the lower left inclined surface 432 and the lower edge of the upper left inclined surface 431; the right side surface 44 of the forming push head 4 is provided with an upper right inclined surface 441 which gradually inclines rightwards from top to bottom and a lower right inclined surface 442 which gradually inclines leftwards from top to bottom, and a right strip-shaped groove 443 which runs forwards and backwards is arranged at the joint of the upper edge of the lower right inclined surface 442 and the lower edge of the upper right inclined surface 441; at least one suction hole 402 is arranged on each of the upper left inclined plane 431, the lower left inclined plane 432, the left strip-shaped groove 433, the upper right inclined plane 441, the lower right inclined plane 442 and the right strip-shaped groove 443. With this structure, the left side surface 43 and the right side surface 44 of the molding push head 4 can have a substantially V-shaped cross section; the left side bag wall of the packaging bag 30 can be clung to the left upper inclined plane 431 and the left lower inclined plane 432 of the forming push head 4 under the negative pressure action of each air suction hole 402 on the left side surface 43 of the forming push head 4 to form a V shape, and the right side bag wall of the packaging bag 30 can be clung to the right upper inclined plane 441 and the right lower inclined plane 442 of the forming push head 4 under the negative pressure action of each air suction hole 402 on the right side surface 44 of the forming push head 4 to form a V shape, so that the folding part of the sealing of the packaging bag 30 can be formed, the sealing part of the packaged packaging bag 30 is flat and attractive, and the packaging effect is greatly improved.

In this embodiment, the top surface 41 of the forming push head 4 is further provided with at least one upper strip-shaped groove 412 running left and right, and each upper guide slot 411 is communicated with the upper strip-shaped groove 412; the bottom surface 42 of the forming push head 4 is provided with at least one left-right lower strip-shaped groove 422, and each lower guide groove 421 is communicated with the lower strip-shaped groove 422; a plurality of suction holes 402 are provided in each of the upper and lower bar-shaped grooves 412, 422. By arranging a plurality of air suction holes 402 in the upper strip-shaped groove 412 and communicating each upper guide slot 411 with the upper strip-shaped groove 412, a larger adsorption surface can be formed on the top surface 41 of the forming push head 4, and the adsorption force on the upper bag wall of the packaging bag 30 is improved; by providing the plurality of suction holes 402 in the lower strip-shaped groove 422 and communicating each lower guide groove 421 with the lower strip-shaped groove 422, a large suction surface can be formed on the bottom surface 42 of the molding plug 4, and the suction force to the lower bag wall of the package bag 30 can be improved.

In this embodiment, the opening and closing control mechanism 3 includes a support 30, a lifting seat 31 and a lifting cylinder 32, wherein the upper platen 2 and the cylinder body of the lifting cylinder 32 are fixedly installed on the support 30, and the piston rod of the lifting cylinder 32 faces upwards and is connected with the lifting seat 31; the lower blade 1 is mounted on the lifting base 31. When the device works, the lifting seat 31 and the lower supporting plate 1 can be driven to ascend or descend by the piston rod of the lifting cylinder 32 to be close to or far away from the upper pressing plate 2, so that the lower supporting plate 1 and the upper pressing plate 2 can be closed or opened.

In the present embodiment, the front side of the shaping pusher 4 is provided with a connecting flange 46, the connecting flange 46 being mounted on the power take-off of the translation mechanism by means of a connecting arm 31. The translation mechanism can adopt a translation cylinder or a translation electric cylinder, and the connecting flange 46 and the forming push head 4 can be driven to translate forwards or backwards for a certain distance through the extension and retraction of a piston rod of the translation cylinder or a push rod of the translation electric cylinder.

The working principle of the bagging forming device is briefly described below:

the bagging forming device is arranged in front of the bag opening device 10 of the packaging machine, and the bag opening device 10 can fully open the bag opening of the packaging bag 30 and enable the bag opening of the opened packaging bag 30 to be positioned right behind the space between the upper pressing plate 2 and the lower supporting plate 1. The suction passage 401 of the molding plug 4 is connected to a suction fan through a suction pipe 48, and the suction fan can suction air through the suction pipe to form negative pressure in the suction passage 401 of the molding plug 4.

When the folding type paper diaper is in operation, a stacked sheet product 20 (such as paper diapers) is positioned on the lower supporting plate 1, the opening and closing control mechanism 3 drives the upper pressing plate 2 and the lower supporting plate 1 to perform closing action until each upper guide strip 21 on the upper pressing plate 2 and each lower guide strip 11 on the lower supporting plate 1 respectively support the top and the bottom of the stacked sheet product 20 (at the moment, the space between the upper pressing plate 2 and the lower supporting plate 1 is opposite to the bag opening of the packaging bag 30 opened by the bag opening device 10; a gap is reserved between the top of the stacked sheet product 20 and the bottom surface 42 of the upper pressing plate 2, and a gap is reserved between the bottom of the stacked sheet product 20 and the top surface 41 of the lower supporting plate 1); subsequently, the forming pusher 4 is driven by the translation mechanism to translate from front to back, and enters between the upper platen 2 and the lower blade 1 (at this time, each upper guide bar 21 of the upper platen 2 is respectively located in the corresponding upper guide slot 411 and can slide backward along the upper guide slot 411, each lower guide bar 11 of the lower blade 1 is respectively located in the corresponding lower guide slot 421 and can slide backward along the lower guide slot 421), and the forming pusher 4 pushes the stack of sheet products 20 to move from front to back together after contacting with them, and enters into the packaging bag 30 from the mouth of the packaging bag 30; then, the suction fan sucks air through the suction pipe and the suction channel 401 of the forming push head 4 to form negative pressure at each suction hole 402 on the forming push head 4 so as to suck air in the packaging bag 30, and the upper bag wall, the lower bag wall, the left bag wall and the right bag wall of the packaging bag 30 are respectively clung to the top surface 41, the bottom surface 42, the left side surface 43 and the right side surface 44 of the forming push head 4 to form a sealed folding part; finally, the translation mechanism drives the forming push head 4 to translate forward for resetting, and simultaneously, the sealing mechanism of the packaging machine closes the upper and lower dies to seal the packaging bag 30.

In the process that the forming push head 4 pushes the stacked sheet products 20 between the upper pressing plate 2 and the lower supporting plate 1 to move towards the bag mouth of the packaging bag 30, as each upper guide strip 21 on the upper pressing plate 2 and each lower guide strip 11 on the lower supporting plate 1 respectively support the top and the bottom of the stacked sheet products 20, a gap is formed between the top of the stacked sheet products 20 and the bottom surface 42 of the upper pressing plate 2, a gap is formed between the bottom of the stacked sheet products 20 and the top surface 41 of the lower supporting plate 1, and through the cooperation between the upper pressing plate 2 and the lower supporting plate 1 and the forming push head 4, the push direction of the forming push head 4 can be more stable, and on the other hand, the sheet products 20 close to the positions of the upper and lower bag walls can be blocked and prevented from entering the gap between the upper pressing plate 2 and the top surface 41 of the forming push head 4 or the gap between the lower supporting plate 1 and the bottom surface 42 of the forming push head 4, so that the top and the bottom of the stacked sheet products 20 are respectively spaced from the top edge and the bottom edge of the rear side 45 of the forming push head 4, and the top edge of the bottom edge of the forming push head 4 can be pushed into the whole packaging bag 20 between the upper pressing plate 2 and the packaging bag 30. After the forming push head 4 pushes the stacked sheet products 20 into the packaging bag 30, negative pressure is formed at each suction hole 402 by sucking air from the suction channel 401 of the forming push head 4, and at the same time, the upper bag wall, the lower bag wall, the left bag wall and the right bag wall of the packaging bag 30 are respectively clung to the top surface 41, the bottom surface 42, the left side surface 43 and the right side surface 44 of the forming push head 4, so that a sealed folding part is formed.

Example 2

Referring to fig. 5, in the case where the other portions are the same as in embodiment one, the difference is that: the bagging forming device further comprises two auxiliary blowing components 6, the two auxiliary blowing components 6 are arranged at the rear of the upper pressing plate 2 and the lower supporting plate 1 side by side left and right, and the forming push head 4 is arranged between the blowing ports of the two auxiliary blowing components 6.

In the present embodiment, the air-blowing port of one auxiliary air-blowing member 6 is directed toward the junction of the upper edge of the lower left inclined surface 432 and the lower edge of the upper left inclined surface 431, and the air-blowing port of the other auxiliary air-blowing member 6 is directed toward the junction of the upper edge of the lower right inclined surface 442 and the lower edge of the upper right inclined surface 441. The inner cavities of the two auxiliary blowing parts 6 are respectively connected and communicated with the blowing port of the blower through a blowing pipe 61, and the blowing pipe 61 is provided with an on-off air valve.

After the forming pusher 4 pushes the stacked sheet-like product 20 into the packaging bag 30, negative pressure is formed at each suction hole 402 by sucking air from the air suction channel 401 of the forming pusher 4, and air blown out from the air outlets of the blower is blown out from the air outlets of the two auxiliary air blowing members 6 after passing through the air pipe 61 and is blown out toward the left side surface 43 and the right side surface 44 of the forming pusher 4 respectively, and the left and right side bag walls of the auxiliary packaging bag 30 can be tightly attached to the left side surface 43 and the right side surface 44 of the forming pusher 4, so that the left and right side bag walls of the packaging bag 30 can form a V shape more smoothly.

In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present utility model are included in the protection scope of the present utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.

Claims (9)

1. A bagging-off forming device for packagine machine, characterized in that: the device comprises a lower supporting plate, an upper pressing plate, an opening and closing control mechanism for driving the upper pressing plate and the lower supporting plate to perform opening and closing actions, a forming push head and a translation mechanism for driving the forming push head to translate back and forth; the upper pressing plate and the lower supporting plate are arranged side by side up and down, at least two upper guide strips running back and forth are arranged on the bottom surface of the upper pressing plate, and at least two lower guide strips running back and forth are arranged on the top surface of the lower supporting plate; the forming push head is arranged between the upper pressing plate and the lower supporting plate, an air suction channel is arranged in the forming push head, and at least one air suction hole communicated with the air suction channel is arranged on the top surface, the bottom surface, the left side surface, the right side surface and the rear side surface of the forming push head; the top surface of the forming push head is also provided with at least two upper guide grooves which run back and forth, and each upper guide groove is correspondingly matched with a corresponding upper guide strip respectively; the bottom surface of the forming push head is also provided with at least two lower guide grooves which run back and forth, and each lower guide groove is correspondingly matched with the corresponding lower guide strip.

2. A bagging apparatus for a packaging machine as claimed in claim 1 wherein: the front side of the forming push head is provided with a connecting flange which is arranged on the power output end of the translation mechanism.

3. A bagging apparatus for a packaging machine as claimed in claim 1 wherein: the left side surface of the forming push head is provided with an upper left inclined surface which gradually inclines rightwards from top to bottom and a lower left inclined surface which gradually inclines leftwards from top to bottom, and the upper edge of the lower left inclined surface is connected with the lower edge of the upper left inclined surface; the right side surface of the forming push head is provided with an upper right inclined surface which gradually inclines rightwards from top to bottom and a lower right inclined surface which gradually inclines leftwards from top to bottom, and the upper edge of the lower right inclined surface is connected with the lower edge of the upper right inclined surface; at least one air suction hole is arranged on each of the upper left inclined plane, the lower left inclined plane, the upper right inclined plane and the lower right inclined plane.

4. A bagging apparatus for a packaging machine as claimed in claim 3 wherein: a left strip-shaped groove which runs forwards and backwards is formed at the joint of the upper edge of the left lower inclined surface and the lower edge of the left upper inclined surface; a right strip-shaped groove which runs forwards and backwards is formed at the joint of the upper edge of the right lower inclined surface and the lower edge of the right upper inclined surface; at least one air suction hole is arranged in each of the left strip-shaped groove and the right strip-shaped groove.

5. A bagging apparatus for a packaging machine as claimed in claim 1 wherein: the bagging forming device further comprises two auxiliary blowing components, the two auxiliary blowing components are arranged at the rear of the upper pressing plate and the lower supporting plate side by side left and right, and the forming pushing head is positioned between the blowing ports of the two auxiliary blowing components.

6. A bagging apparatus for a packaging machine as claimed in claim 5 wherein: the left side surface of the forming push head is provided with an upper left inclined surface which gradually inclines rightwards from top to bottom and a lower left inclined surface which gradually inclines leftwards from top to bottom, and the upper edge of the lower left inclined surface is connected with the lower edge of the upper left inclined surface; the right side surface of the forming push head is provided with an upper right inclined surface which gradually inclines rightwards from top to bottom and a lower right inclined surface which gradually inclines leftwards from top to bottom, and the upper edge of the lower right inclined surface is connected with the lower edge of the upper right inclined surface; at least one air suction hole is arranged on each of the upper left inclined plane, the lower left inclined plane, the upper right inclined plane and the lower right inclined plane; the air blowing port of one auxiliary air blowing component faces to the joint of the upper edge of the left lower inclined surface and the lower edge of the left upper inclined surface, and the air blowing port of the other auxiliary air blowing component faces to the joint of the upper edge of the right lower inclined surface and the lower edge of the right upper inclined surface.

7. A bagging apparatus for a packaging machine as claimed in claim 1 wherein: the top surface of the forming pushing head is also provided with at least one upper strip-shaped groove which runs left and right, and each upper guide groove is communicated with the upper strip-shaped groove; the bottom surface of the forming push head is provided with at least one left-right lower strip-shaped groove, and each lower guide groove is communicated with the lower strip-shaped groove; at least one air suction hole is arranged in each of the upper strip-shaped groove and the lower strip-shaped groove.

8. Bagging apparatus for a packaging machine as claimed in any one of claims 1 to 7, wherein: the opening and closing control mechanism comprises a supporting frame, a lifting seat and a lifting mechanism for driving the lifting seat to lift, wherein the upper pressing plate and the lifting mechanism are fixedly installed on the supporting frame, and the lower supporting plate is installed on the lifting seat.

9. Bagging apparatus for a packaging machine as claimed in any one of claims 1 to 7, wherein: the opening and closing control mechanism comprises a supporting frame, a lifting seat and a lifting mechanism for driving the lifting seat to lift, wherein the lower supporting plate and the lifting mechanism are fixedly arranged on the supporting frame, and the upper pressing plate is arranged on the lifting seat.