CN113665166A

CN113665166A - Foxing forming device and inner box forming device

Info

Publication number: CN113665166A
Application number: CN202110979519.9A
Authority: CN
Inventors: 胡纯军; 董阳; 鄢泽华; 曹宏勋; 黄正烈; 张双印
Original assignee: Zhongke Tiangong Guangdong Intelligent Technology Co ltd
Current assignee: Zhongke Tiangong Guangdong Intelligent Technology Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-11-19

Abstract

The invention discloses a surrounding strip forming device and an inner box forming device, wherein the surrounding strip forming device is used for forming a surrounding strip together with an inner mold, the surrounding strip forming device comprises a forming seat and a movable pin assembly, the forming seat is provided with two opposite side walls and a bottom wall arranged between the two side walls, a forming cavity used for forming the surrounding strip is formed between the two side walls, and one opposite end of the bottom wall is a feeding opening used for the inner mold to impact the surrounding strip to enter; the movable pin assembly is arranged adjacent to the feeding opening, and the elastic pin assembly can movably extend a pin rod towards the feeding opening and is used for shoveling and folding the exposed part of the enclosing strip. According to the technical scheme, the shaping of the surrounding strip is completed by arranging the forming cavity and the movable pin assembly, so that the structure is simple, the operation is convenient and fast, and the accurate forming of the surrounding strip can be realized.

Description

Foxing forming device and inner box forming device

Technical Field

The invention relates to the technical field of automatic production equipment, in particular to a surrounding strip forming device and an inner box forming device.

Background

In current full open type carton machine-shaping technology, the surrounding edge shaping of surrounding strip and centre form is the first step of forming process, and the fashioned efficiency of surrounding strip surrounding edge and quality influence all produce the influence to the efficiency and the quality of follow-up carton preparation, and current surrounding strip forming device, the structure is complicated, leads to forming process complicated, has reduced production efficiency, and does not consider the shaping problem of compatible not unidimensional surrounding strip among the prior art, leads to trading singly to process and need redevelopment equipment, has caused the cost and has lived in the height higher.

Disclosure of Invention

The invention mainly aims to provide a foxing forming device and an inner box forming device, and aims to solve the problems of low forming efficiency and high production cost of the existing foxing forming technology.

In order to achieve the above object, the present invention provides a foxing molding device for molding a foxing together with an inner mold, the foxing molding device comprising:

the forming seat is provided with two opposite side walls and a bottom wall arranged between the two side walls, a forming cavity for forming the surrounding strip is formed between the two side walls, and a feeding opening for the inner die to impact the surrounding strip to enter is formed at one end, opposite to the bottom wall, of the bottom wall; and the number of the first and second groups,

and the movable pin assembly is arranged adjacent to the feeding opening and comprises a pin rod movably extending towards the feeding opening and used for carrying out folding forming on the exposed part of the enclosing strip.

Optionally, the pin rod penetrates through the side walls corresponding to the feeding opening, the pin rod is arranged along the arrangement direction of the two side walls, and is provided with a movable end and an action end which are opposite to each other in the arrangement direction of the two side walls, and the movable end can move along the arrangement direction of the side walls;

the movable pin assembly further comprises a driving structure arranged on the outer side of the side wall, and the driving structure can drive and be connected with the acting end to drive the movable end to extend and contract from the feeding opening.

Optionally, the driving reset structure includes a fork block movably disposed along an up-down direction, a driving inclined plane is formed at a lower end of the fork block, and the driving inclined plane is disposed corresponding to the acting end so as to move downward to abut against the acting end.

Optionally, the driving structure further includes a roller disposed at the acting end, and the roller is disposed outside the molding cavity corresponding to the side wall;

the driving inclined plane is used for abutting against the side surface of the roller.

Optionally, the movable pin assembly further includes an elastic restoring member, where the elastic restoring member is disposed between the side wall and the pin rod to drive the action end to drive the movable end to retract from the feeding opening when the driving structure is disengaged from the action end.

Optionally, the foxing forming device is still including locating the straight line in the outside of lateral wall drives the cylinder, the straight line drives the cylinder and corresponds feed opening sets up, and has one and can move towards the push rod of shaping cavity internalization, the push rod is connected the pin rod, in order to drive the pin rod to feed opening stretches out.

Optionally, the pin rod is rotatably mounted at one end of the side wall so as to be capable of rotating to extend into the forming cavity from the feeding opening;

the foxing forming device further comprises a rotary driving cylinder arranged at the bottom of the forming seat, and the rotary driving cylinder is in driving connection with the pin rod.

The present invention also provides an inner box molding apparatus, comprising:

the base is sequentially provided with a feeding station, a forming station and a discharging station in the front-back direction;

the rotary table is rotatably arranged on the base; and the number of the first and second groups,

the foxing forming device is the foxing forming device in any one of the above items, and further comprises a forming seat;

the forming seats are arranged on the turntable at intervals and used for driving the forming seats to flow between the forming station and the discharging station in the rotating process of the turntable.

Optionally, the inner box forming device comprises:

the surrounding strip feeding device is arranged corresponding to the feeding station and used for conveying the surrounding strip to wait for the center of the stroke in a standing posture;

the inner die conveying device is arranged corresponding to the feeding station, is arranged on the front side of the surrounding strip feeding device and is used for conveying the inner die to a stroke so that the inner die impacts the middle section of the surrounding strip to enter the forming cavity of the forming seat for forming; and the number of the first and second groups,

and the rotating arm is arranged corresponding to the discharging station and used for clamping the internal mold of the formed surrounding strip in the forming cavity and conveying the internal mold to a second turntable forming carrier for assembling the top cover and the bottom cover to form an internal box.

Optionally, the forming seat is provided with an avoiding groove for avoiding the rotating arm when the rotating arm clamps the inner mold of the formed surrounding strip from the forming cavity;

the avoiding groove is communicated with the forming cavity.

In the technical scheme of the invention, the surrounding strip forming device and the inner mold form the surrounding strip together, the surrounding strip forming device comprises a forming seat and a movable pin assembly, a forming cavity is formed on the forming seat, the movable pin assembly comprises a pin rod, the pin rod can movably extend out of and retract into the feeding opening, the surrounding strip and the inner mold are pushed into the forming cavity together from the feeding opening, the two side walls and the bottom wall jointly form three adjacent edges of the surrounding strip, the pin rod movably extends out of the feeding opening to tightly form at least one butt edge of the surrounding strip, namely, the forming cavity is arranged to form the three adjacent edges of the surrounding strip, the movable pin assembly is arranged to form the at least one butt edge of the surrounding strip, the structure is simple, the operation is convenient and fast, the forming efficiency is improved, but also can reduce the production cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a foxing molding apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic plan view of the foxing forming device of FIG. 1;

FIG. 3 is a schematic view of the assembled configuration of the pin shaft of FIG. 1;

FIG. 4 is a schematic perspective view of the reset assembly of FIG. 1;

fig. 5 is a schematic perspective view of a foxing molding apparatus according to a second embodiment of the present invention;

fig. 6 is a schematic perspective view of a foxing molding apparatus according to a third embodiment of the present invention;

fig. 7 is a schematic perspective view of a foxing molding apparatus according to a fourth embodiment of the present invention;

fig. 8 is a schematic perspective view of an inner box forming device provided by the present invention.

The embodiment of the invention is illustrated by reference numerals:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Foxing strip forming device	32	Roller wheel
1	Forming base	4	Linear driving cylinder
				11	Forming concave cavity	5	Rotary driving cylinder
12	Side wall	200	Internal mold
				121	Mounting hole	300	Surrounding strip
13	Bottom wall	301	The first surrounding section
				14	Feed opening	302	Second surrounding section
15	Dodging groove	303	Third surrounding section
				2	Movable pin assembly	304	The fourth surrounding section
21	Pin rod	305	The fifth surrounding section
				211	Movable end	400	Base seat
212	Acting end	500	Rotary disc
				22	Guide block	a	Feeding station
23	Turning plate	b	Forming station
				3	Driving structure	c	Discharging station
31	Fork block

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the existing full-open type paper box processing and forming process, the surrounding edge forming of the surrounding strip and the inner die is the first step of the forming process, the efficiency and the quality of the surrounding edge forming influence the efficiency and the quality of subsequent paper box preparation, the existing surrounding strip forming device is complex in structure, the forming process is complex, the production efficiency is reduced, the processing precision of the existing surrounding strip forming device is not high, and the production quality is reduced.

In view of the above, the invention provides a foxing forming device and an inner box forming device. Fig. 1 to 4 show a first embodiment of a foxing forming device according to the present invention; fig. 5 is a second embodiment of the foxing forming device provided by the invention; fig. 6 shows a third embodiment of the foxing forming device according to the invention; fig. 7 shows a fourth embodiment of the foxing forming device according to the invention; fig. 8 is a schematic perspective view of an inner box forming device provided by the present invention.

Referring to fig. 1 to 4, the foxing molding apparatus 100 is used for molding a foxing 300 together with an inner mold 200, the foxing molding apparatus 100 includes a molding base 1 and a movable pin assembly 2, the molding base 1 has two opposite side walls 12 and a bottom wall 13 disposed between the two side walls 12, a molding cavity 11 for molding the foxing 300 is formed between the two side walls, and an opposite end of the bottom wall 13 is a feeding opening 14 for the inner mold 200 to impact the foxing 300 to enter; the movable pin assembly 2 is disposed adjacent to the feeding opening 14 and includes a pin 21 movably protruding toward the feeding opening 14 for scooping and forming the exposed portion of the foxing strip 300.

In the technical solution of the present invention, the foxing molding device 100 and the inner mold 200 jointly form the foxing 300, the foxing molding device 100 includes a molding base 1 and a movable pin assembly 2, the molding base 1 is formed with a molding cavity 11, the movable pin assembly 2 includes a pin 21, the pin 21 can movably extend and retract toward the feeding opening 14, the foxing 300 and the inner mold 200 are pushed into the molding cavity 11 together from the feeding opening 14, the two side walls 12 and the bottom wall 13 jointly shape three adjacent edges of the foxing 300, the pin 21 movably extends toward the feeding opening 14 to tightly shape at least one butt edge of the foxing 300, that is, the molding cavity is provided to shape three adjacent edges of the foxing 300, the movable pin assembly 2 is provided to shape at least one butt edge of the foxing 300, not only simple structure, simple operation improve shaping efficiency, can reduction in production cost moreover.

Please refer to fig. 2, it should be noted that the foxing 300 sequentially forms a first surrounding section 301, a second surrounding section 302, a third surrounding section 303, a fourth surrounding section 304 and a fifth surrounding section 305 along the length direction thereof, the first surrounding section 301 and the fifth surrounding section 305 are disposed corresponding to the feeding opening 14, the pin 21 is used for abutting and shaping the first surrounding section 301 and the fifth surrounding section 305, the first surrounding section 301 and the fifth surrounding section 305 are attached to one side of the inner mold 2006 along the width direction thereof, the third surrounding section 303 is disposed corresponding to the bottom wall 1313, the third surrounding section 303 is attached to the other side of the inner mold 200 along the width direction thereof, the second surrounding section 302 and the fourth surrounding section 304 are disposed corresponding to the two side walls 12, and the second surrounding section 302 and the fourth surrounding section 304 are attached to the two sides of the inner mold 200 along the length direction thereof.

Further referring to fig. 2, in the forming process, the foxing 300 and the inner mold 200 are moved to the feeding opening 14, one side of the inner mold 200 along the width direction thereof faces the third surrounding section 303, the pin 21 is retracted from the feeding opening 14, the foxing 300 and the inner mold 200 are simultaneously pushed into the forming cavity 11 from the feeding opening 14, the two side walls 12 and the bottom wall 13 together shape three adjacent edges of the foxing 300, and the pin 21 extends from the feeding opening 14 to tightly shape at least one butt edge of the foxing 300.

Referring to fig. 3 and 4, the pin rod 21 is disposed through the side walls 12 at a position corresponding to the feeding opening 14, the pin rod 21 is disposed along the arrangement direction of the two side walls 12, and has a movable end 211 and an action end 212 opposite to each other in the arrangement direction of the two side walls 12, and the movable end 211 can move along the arrangement direction of the side walls 12; the foxing forming device 100 further comprises a driving structure 3 arranged on the outer side of the side wall 12, the driving structure 3 is in driving connection with the acting end 212 to drive the movable end 211 to extend and contract from the feeding opening 14, and the movable end 211 retracts to enable the foxing 300 and the inner die 200 to enter the forming cavity 11 from the feeding opening 14 and to extend out of the movable end 211 to tightly clamp and shape at least one butt joint edge of the foxing 300 during forming.

In the present invention, the driving structure 3 includes a fork block 31 movably disposed along the up-down direction, a driving inclined plane is formed at the lower end of the fork block 31, the driving inclined plane is disposed corresponding to the action end 212 to move downward and abut against the action end 212, the fork block 31 moves downward, the driving inclined plane drives the action end 212 to move, and drives the pin rod 21 to move to the action end 211 to retract from the feeding opening 14, so that the shroud ring 300 and the inner mold 200 enter the forming cavity 11 together from the feeding opening 14, and the action of shaping three adjacent edges of the shroud ring 300 by the two side walls 12 and the bottom wall 13 is realized.

With further reference to fig. 4, the driving structure 3 further includes a roller 32 disposed at the acting end 212, and the roller 32 is disposed outside the forming cavity 11 corresponding to the sidewall 12; the driving inclined surface is used for abutting against the side surface of the roller 32; the driving inclined surface is used for abutting against the side surface of the roller 32, so that the contact area between the acting end 212 and the driving inclined surface is increased, and the fork block 31 is more favorable for driving the pin rod 21 to move.

In this embodiment, the movable pin assembly 2 further includes an elastic restoring member, which is disposed between the side wall 12 and the pin rod 21, so as to drive the acting end 212 to drive the movable end 211 to retract from the feeding opening 14 when the driving structure 3 is separated from the acting end 212.

Specifically, the side wall 12 is provided with a mounting hole 121, the mounting hole 121 extends along the direction in which the two side walls 12 are arranged, a guide block 22 is arranged in the mounting hole 121, an accommodating groove is formed in an end surface of one side of the guide block 22 facing the forming cavity 11, an avoiding hole is formed in an end surface of one side of the guide block 22 facing away from the forming cavity 11, the avoiding hole is communicated with the accommodating groove, the movable end 211 of the pin 21 is movably arranged in the accommodating groove, and the acting end 212 of the pin 21 penetrates through the mounting hole and extends out of the outer side of the side wall 12; the elasticity resets and locates the expansion end 211 with between the diapire of holding tank, so, drive structure 3 breaks away from when acting on end 212, the drive act on end 212 and drive expansion end 211 certainly feed opening 14 withdraws.

It should be noted that the specific form of the elastic return member is not limited in the present invention, and the elastic return member may be a silicone sleeve.

Specifically, the driving structure 3 further includes a mounting bracket and a driving cylinder, the mounting bracket can move in the up-down direction, the driving cylinder includes a push rod which can move in the up-down direction, and the movable end 211 of the push rod is connected with the mounting bracket; the fork block 31 is arranged on the mounting frame, so that the fork block 31 can move up and down.

It should be noted that, in this embodiment, the pin rods 21 are provided with two, two the pin rods 21 are respectively provided on two of the side walls 12, and are oppositely provided, correspondingly, the fork blocks 31, the elastic restoring member, the mounting holes 121 and the rollers 32 are all correspondingly provided with two, two the fork blocks 31 respectively correspond to two the rollers 32, so as to drive two the pin rods 21 to be close to each other or to be away from each other.

Referring to fig. 5, in the second embodiment, the pin rod 21 is disposed through the side walls 12 at a position corresponding to the feeding opening 14, the pin rod 21 is disposed along the arrangement direction of the two side walls 12, and has a movable end 211 and an action end 212 opposite to each other in the arrangement direction of the two side walls 12, and the movable end 211 can move along the arrangement direction of the two side walls 12; the foxing forming device 100 further comprises a driving structure 3 arranged on the outer side of the side wall 12, the driving structure 3 is in driving connection with the acting end 212 to drive the movable end 211 to extend and contract from the feeding opening 14, and the movable end 211 retracts to enable the foxing 300 and the inner die 200 to enter the forming cavity 11 from the feeding opening 14 and to extend out of the movable end 211 to tightly clamp and shape at least one butt joint edge of the foxing 300 during forming.

Specifically, the driving structure 3 includes a fork block 31 movably disposed along the front-back direction, a driving inclined surface is formed at one end of the fork block 31 facing the pin rod 21, the driving inclined surface is disposed corresponding to the action end 212, so that when the fork block 31 moves towards one side close to the action end 212 to abut against the action end 212, the driving inclined surface can abut against the action end 212, the action end 212 is driven to move along the left-right direction by the driving inclined surface, the pin rod 21 is driven to move to the action end 211 to retract from the feeding opening 14, so that the surrounding strip 300 and the inner mold 200 enter the forming cavity 11 together from the feeding opening 14, and the action of shaping three adjacent edges of the surrounding strip 300 by the two side walls 12 and the bottom wall 13 together is realized.

More specifically, the movable pin assembly 2 further comprises an elastic return element, which is arranged between the side wall 12 and the pin 21 to drive the active end 212 to bring the active end 211 back from the feed opening 14 when the driving structure 3 is disengaged from the active end 212.

In this embodiment, the driving structure 3 further includes a roller 32 disposed at the acting end 212, and the roller 32 is disposed at the bottom of the acting end 212; the driving inclined surface is used for abutting against the side surface of the roller 32; the driving inclined surface is used for abutting against the side surface of the roller 32, so that the contact area between the acting end 212 and the driving inclined surface is increased, and the fork block 31 is more favorable for driving the pin rod 21 to move.

Referring to fig. 6, in a third embodiment, the pin 21 is disposed through the side walls 12 at a position corresponding to the feeding opening 14, and the pin 21 is disposed along the arrangement direction of the two side walls 12 and can move along the arrangement direction of the two side walls 12; foxing forming device 100 is still including locating the straight line in the outside of lateral wall 12 drives actuating cylinder 4, the straight line drives actuating cylinder 4 and corresponds feed opening 14 sets up, and has one and can move towards the push rod of 11 internalizations in the shaping cavity, the push rod is connected pin 21, in order to drive pin 21 to feed opening 14 stretches out, through the straight line drives actuating cylinder 4 direct drive the activity of pin 21, and not only easy operation, the structure is retrencied moreover, can reduction in production cost.

It should be noted that, in this embodiment, two pin rods 21 are provided, two pin rods 21 are respectively provided on two side walls 12 and are oppositely provided, and correspondingly, two linear driving cylinders 4 are provided, and two linear driving cylinders 4 are respectively provided on the outer sides of two side walls 12 to respectively drive two pin rods 21 to move.

Referring to fig. 7, in the fourth embodiment, the movable pin assembly 2 further includes a flap 23, and the flap 23 is rotatably mounted at one end of the side wall 12 so as to be capable of rotating to extend into the forming cavity 11 from the feeding opening 14; the foxing molding device 100 further includes a rotation driving cylinder 5 disposed at the bottom of the molding seat 1, the rotation driving cylinder 5 is drivingly connected to the turning plate 23, that is, in this embodiment, the pin 21 and the turning plate 23 are disposed on the two side walls 12, and in an initial state, neither the pin 21 nor the turning plate enters the molding cavity 11, the foxing 300 and the inner mold 200 enter the molding cavity 11 together from the feeding opening 14, so as to realize the action of shaping three adjacent edges of the foxing 300 by the two side walls 12 and the bottom wall 13 together, after the foxing 300 and the inner mold 200 enter the molding cavity 11 together from the feeding opening 14, the pin 21 extends from the feeding opening to the molding cavity 11, and the turning plate 23 rotates until the pin 14 extends into the molding cavity 11, so as to bend at least one butt joint edge of the surrounding strip 300, and the butt joint edge is abutted against and attached to the inner mold 200, thereby realizing the shaping of at least one butt joint edge of the surrounding strip 300.

The invention also provides an inner box forming device (please refer to fig. 1 and 8), which further comprises a base 400, a turntable 500 and a foxing forming device 100, wherein the base 400 is sequentially provided with a feeding station a, a forming station b and a discharging station c in the front and back direction; the turntable 500 is rotatably mounted on the base 400; the foxing forming device 100 comprises a forming seat 1; at least two forming seats 1 are distributed on the turntable 500 at intervals and are used for driving the forming seats 1 to circulate between the forming station b and the discharging station c in the rotating process, so that automatic feeding is realized, and the forming efficiency is improved.

It should be noted that the foxing molding apparatus 100 is the foxing molding apparatus 100 described in any one of the above, and the inner box molding apparatus includes all technical features of the foxing molding apparatus 100, so that the inner box molding apparatus also has technical effects brought by all the technical features, and details are not repeated here.

In the invention, the inner box forming device comprises a surrounding strip feeding device, an inner mold conveying device and a rotating arm, wherein the surrounding strip feeding device is arranged corresponding to the feeding station a and is used for conveying the surrounding strip 300 to wait at the center of a stroke in a standing posture; the inner mold conveying device is arranged corresponding to the feeding station a, is arranged on the front side of the surrounding strip feeding device, and is used for conveying the inner mold 200 to a stroke, so that the inner mold 200 impacts the middle section of the surrounding strip 300 to enter the forming cavity 11 of the forming seat 1 for forming; the rotating arm is arranged corresponding to the discharging station c and used for clamping the inner mold 200 with the formed surrounding strip in the forming cavity 11 and conveying the inner mold to a second turntable forming carrier for assembling the top and bottom covers to form an inner box.

Specifically, an avoiding groove 15 is formed in the forming seat 1, and is used for avoiding the rotating arm when the rotating arm clamps the inner mold 200 of the formed surrounding strip from the forming cavity 11; the avoidance groove 15 is communicated with the forming cavity 11, so that the rotating arm can clamp the inner die 200 of the formed surrounding strip in the forming cavity 11.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a foxing forming device for with centre form coform foxing, its characterized in that, foxing forming device includes:

2. The foxing molding device of claim 1, wherein the pin rod is arranged through the side walls corresponding to the feeding opening, is arranged along the arrangement direction of the two side walls, and has a movable end and an action end which are opposite to each other in the arrangement direction of the two side walls;

the foxing forming device further comprises a driving structure arranged on the outer side of the side wall, and the driving structure can drive and be connected with the acting end to drive the movable end to extend out of the feeding opening.

3. The foxing molding device according to claim 2, wherein the driving structure comprises a fork block movably arranged along an upper direction and a lower direction, the lower end of the fork block is formed with a driving inclined surface, and the driving inclined surface is arranged corresponding to the action end so as to be capable of moving downwards to abut against the action end.

4. The foxing forming apparatus of claim 2, wherein the movable pin assembly further comprises rollers disposed at the active end, the rollers being disposed outside the forming cavity in correspondence with the side walls;

5. The foxing molding apparatus of claim 2 wherein the movable pin assembly further comprises a resilient return member disposed between the side wall and the pin to urge the active end to cause the active end to retract from the feed opening when the drive structure is disengaged from the active end.

6. The foxing molding device of claim 1, further comprising a linear driving cylinder disposed outside the side wall, wherein the linear driving cylinder is disposed corresponding to the feeding opening and has a push rod movable toward the molding cavity, and the push rod is connected to the pin rod to drive the pin rod to extend toward the feeding opening.

7. The foxing forming apparatus of claim 1, wherein the movable pin assembly further comprises a flap rotatably mounted at one end of the side wall so as to be rotatable into the forming cavity from the feed opening;

the foxing forming device further comprises a rotary driving cylinder arranged at the bottom of the forming seat, and the rotary driving cylinder is in driving connection with the turning plate.

8. An inner box forming device, comprising:

the foxing forming device of any one of claims 1-7, which comprises a forming seat;

9. The inner box molding apparatus according to claim 8, comprising:

10. The inner box forming device according to claim 9, wherein the forming seat is provided with an avoiding groove for avoiding the rotating arm when the rotating arm clamps the inner mold of the formed surrounding strip from the forming cavity;

the avoiding groove is communicated with the forming cavity.