CN214776762U - Lug plate folding mechanism for forming paper box - Google Patents

Abstract

A carton forming ear flap mechanism comprising: the support body, elevating gear and ear folding plate fixture device. The ear plate folding clamp device comprises ear plate folding cylinders, and the left and right sides of the ear plate folding cylinders are provided with connecting plates and external forming plates. The ear plate folding cylinder is connected with one end of the connecting plate; the other end of the connecting plate is connected with an external forming plate. The bottom downside bilateral symmetry of otic placode folding cylinder sets up inside profiled sheeting, and outside profiled sheeting is located the downside of otic placode folding cylinder bottom, and inside profiled sheeting is located the downside of outside profiled sheeting. The lifting device comprises a lifting cylinder, the lifting cylinder is fixed at the top of the bracket body, and the lifting cylinder is connected with the ear plate folding cylinder. By adopting the mechanism, the inner and outer forming plates are matched to complete the folding of the ear plate, a set of brand new scheme is provided for the automatic folding and forming of the ear plate of a large paper box (the size is larger than 100X100X100mm), the complex process and the high cost caused by gluing are avoided, and the mechanism is efficient, stable and low in cost.

Description

Lug plate folding mechanism for forming paper box

Technical Field

The application relates to the technical field of cartoning machines, concretely relates to lug plate mechanism is folded in carton shaping.

Background

In the field of traditional box packing machines, the forming of the large white cardboard with the size of over 100X100X100mm is always an industry difficulty. Even if the carton is excessive pressure stupefied processing before the ear board is folded, when the automatic box that seals folded the ear board, because the ear board size is too big, still there is certain rigidity, and traditional mechanism can lead to whole ear board folding to take place the mistake and warp, leads to the box body shaping failure, and the qualified efficiency of carton folded the ear board is on the low side.

The traditional ear folding plate mechanism is formed by combining a rotary pressing plate and a fixed pressing plate, wherein the fixed pressing plate presses an ear plate on one side of a paper box through guiding in the box body conveying process, and the rotary pressing plate presses an ear plate on the other side of the paper box through a driving device. This configuration can only accommodate cartons of the box type less than 100X100mm, beyond which the collapse of the ear panels will fail due to the inherent rigidity of the carton.

At present, a mode of slotting corrugated paper or manually manufacturing a box is mostly adopted for forming a large paper box, but the mode is high in cost, and the qualified efficiency of the folded lug plate of the paper box is low.

SUMMERY OF THE UTILITY MODEL

The application provides a carton forming and ear plate folding mechanism, which mainly aims to improve the qualified folding efficiency of ear plates of large cartons with the size of more than 100X100X100 mm.

An embodiment of the application provides a lug plate mechanism is rolled over in carton shaping, includes: the lifting device comprises a bracket body, a lifting device and a lug folding plate clamp device;

the ear plate folding clamp device comprises an ear plate folding cylinder, and the left side and the right side of the ear plate folding cylinder are both provided with a connecting plate and an external forming plate; the ear plate folding cylinder is connected with one end of the connecting plate; the other end of the connecting plate is connected with the external forming plate; the lower side of the bottom of the lug plate folding cylinder is symmetrically provided with an inner forming plate, the outer forming plate is positioned on the lower side of the bottom of the lug plate folding cylinder, and the inner forming plate is positioned on the lower side of the outer forming plate;

the lifting device comprises a lifting cylinder, the lifting cylinder is fixed to the top of the support body, and the lifting cylinder is connected with the ear plate folding cylinder.

In one embodiment, the outer forming plate comprises a first ear plate folding plate and a second ear plate folding plate, the first ear plate folding plate is horizontally arranged, the second ear plate folding plate is obliquely arranged, and the second ear plate folding plates on the left side and the right side are close to each other to form a splayed shape; first otic placode folded sheet one end with connecting plate fixed connection, the other end with the second otic placode folded sheet is connected.

In one embodiment, a mounting plate is arranged on one side of the first ear plate folding plate, which is far away from the second ear plate folding plate, at least one strip-shaped through hole is arranged on the mounting plate, and the width direction of the strip-shaped through hole on the mounting plate is the same as the width direction between the left side and the right side of the ear plate folding cylinder; the external forming plate is fixedly connected with the connecting plate through the strip-shaped through hole.

In one embodiment, the connection plate comprises a first connection plate and a second connection plate; one end of the first connecting plate is connected with the ear plate folding cylinder, and the other end of the first connecting plate is fixedly connected with the second connecting plate; the second connecting plate is provided with at least one strip-shaped through hole, one end of the second connecting plate is fixedly connected with the first connecting plate through the strip-shaped through hole, and the other end of the second connecting plate is fixedly connected with the mounting plate; the strip-shaped through holes in the second connecting plate are used for adjusting the height of the second connecting plate.

In one embodiment, the ear plate folding clamp device further comprises a third connecting plate, the third connecting plate comprises a horizontal plate and a vertical plate, the vertical plate is fixed on the side surface of the ear plate folding cylinder, and the horizontal plate is located on the lower side of the bottom of the ear plate folding cylinder.

In one embodiment, the inner forming plate comprises a horizontal arranging plate, a fourth connecting plate and a fifth connecting plate, and the horizontal arranging plate, the first ear plate folding plate and the fifth connecting plate are parallel to each other; one end of the fourth connecting plate is connected with the fifth connecting plate, and the other end of the fourth connecting plate is connected with the horizontal arranging plate; the fifth connecting plate is provided with at least one strip-shaped through hole, and the internal forming plate is fixedly connected with the horizontal plate through the strip-shaped through hole in the fifth connecting plate; the fourth connecting plates on the inner forming plates on the left side and the right side are arranged close to each other.

In one embodiment, the inner forming plate further comprises an end guide plate and a guide wedge block; the end part guide plate is arranged on one side, far away from the fourth connecting plate, of the horizontal arranging plate, and the end part guide plate is bent towards one side, close to the fourth connecting plate; the guide wedge block is fixed at the bottom of the inner forming plate and used for arranging articles in the paper box.

In one embodiment, the guide wedge block is a structure protruding downwards along the bottom of the inner forming plate, the guide wedge block is provided with an inclined plane, and the inclined planes on the guide wedge blocks on the left side and the right side are far away from each other to form an inverted V shape.

In one embodiment, at least one linear bearing is arranged at the top of the bracket body, at least one guide shaft is arranged between the top of the bracket body and the lug plate folding cylinder, one end of the guide shaft is fixed on the lug plate folding cylinder, and the other end of the guide shaft penetrates through the linear bearing.

In one embodiment, the lifting cylinder is an adjustable stroke lifting cylinder.

According to the carton forming ear plate folding mechanism in the embodiment, the ear plate folding fixture device is moved up and down by arranging the lifting device, and the ear plate folding cylinder is used for opening and closing the ear plate folding fixture device. Because set up outside profiled sheeting and inside profiled sheeting, inside profiled sheeting is located the inside of carton, and outside profiled sheeting is located the outside of carton, and the otic placode is located between outside profiled sheeting and the inside profiled sheeting, and outside profiled sheeting accomplishes compressing tightly bending of otic placode, and inside profiled sheeting carries on spacingly and supports to the otic placode. Adopt the carton shaping ear plate folding mechanism of this application, the folding of ear plate is accomplished in outside shaping board and the cooperation of inside shaping board, can be to exceeding the smooth ear plate folding operation that carries on of 100X100X100mm big carton of size, and is more high-efficient, can also improve the folded qualification rate of ear plate simultaneously, avoids because of big carton rigidity is poor, easily leads to the phenomenon of the folding failure of ear plate.

Drawings

FIG. 1 is a schematic view of a closed structure of a tab plate clamp device according to an embodiment of the present application;

FIG. 2 is a schematic view of an open configuration of a folded ear panel clamp apparatus according to an embodiment of the present application;

FIG. 3 is a schematic perspective view of a carton forming ear folding plate mechanism according to an embodiment of the present application;

FIG. 4 is a schematic plan view of a carton forming ear folding plate mechanism according to an embodiment of the present application;

FIG. 5 is a schematic view of an outer forming plate according to an embodiment of the present application;

FIG. 6 is a schematic view of an inner forming plate according to an embodiment of the present application;

FIG. 7 is a schematic view of an inner forming plate according to another embodiment of the present application;

FIG. 8 is a schematic diagram of a third connecting plate structure according to an embodiment of the present disclosure;

FIG. 9 is an enlarged view of FIG. 1;

fig. 10 is a schematic diagram of a carton configuration.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

As shown in fig. 1-10, a carton forming tucker flap mechanism 10 includes: a bracket body 101, a lifting device and a lug plate clamp device.

The ear plate folding clamp device comprises an ear plate folding cylinder 106, and the left side and the right side of the ear plate folding cylinder 106 are respectively provided with a connecting plate 108 and an external forming plate 109. The ear plate folding cylinder 106 is connected with one end of the connecting plate 108; the other end of the connecting plate 108 is connected to an outer forming plate 109. The inner forming plates 110 are symmetrically arranged on the left and right of the lower side of the bottom of the ear plate folding cylinder 106, the outer forming plate 109 is located on the lower side of the bottom of the ear plate folding cylinder 106, and the inner forming plate 110 is located on the lower side of the outer forming plate 109.

The lifting device comprises a lifting cylinder 102, the lifting cylinder 102 is fixed on the top of the bracket body 101, and the lifting cylinder 102 is connected with an ear plate folding cylinder 106.

As shown in fig. 3, the supporting body 101 has an approximately right-angle structure, and has a horizontal support and a vertical support, and the top of the supporting body 101 is the upper surface of the horizontal support. The lifting cylinder 102 comprises a first cylinder rod 103, one end of the first cylinder rod 103 is fixed on the ear plate folding cylinder 106, and the other end is arranged on the lifting cylinder 102. The ear plate folding cylinder 106 comprises at least two second cylinder rods 107, the left side and the right side of the ear plate folding cylinder 106 are respectively provided with at least one second cylinder rod 107, one end of each second cylinder rod 107 is arranged on the ear plate folding cylinder 106, and the other end of each second cylinder rod 107 is fixed on the connecting plate 108. The one end and the other end are both opposite end portions of the same member. Driven by the lifting cylinder 102, the first cylinder rod 103 drives the ear folding plate clamp device to move up and down. Driven by the ear plate folding air cylinder 106, the second air cylinder rod 107 moves left and right, so that the outer forming plates 109 on the left side and the right side move left and right and are close to or far away from each other. Before the ear folding plates, the ear folding plate holding apparatus is lowered, the inner forming plate 110 is positioned inside the carton of the panels to be folded, and the outer forming plates 109 on the left and right sides are positioned outside the left and right ear plates of the carton. After the ear plate folding clamp device is lowered to a proper height, the outer forming plates 109 on the left side and the right side are close to each other under the action of the second air cylinder rod 107, and the ear plates on the paper box are folded. When the ear plate is folded, the ear plate is positioned between the external forming plate 109 and the internal forming plate 110, the internal forming plate 110 plays a supporting and limiting role on the ear plate, and the external forming plate 109 completes bending and pressing actions on the ear plate. After the ear plates are folded, the outer forming plates 109 on the left side and the right side are driven by the second cylinder rod 107 to be away from each other, and the ear plate folding clamp device moves upwards to avoid interference with the paper box conveying device. The ear plate folding clamp device is similar to an opening and closing device, under the driving of the ear plate folding cylinder 106, the outer forming plates 109 on the left side and the right side of the ear plate folding cylinder 106 are close to or far away from each other, and an opening or closing state of the ear plate folding clamp device is formed, so that the ear plate can be folded.

The carton forming ear folding plate mechanism 10 in the above embodiment of the present application realizes up-down movement of the ear folding plate clamp device by setting up the lifting device, and realizes opening and closing of the ear folding plate clamp device by the ear folding cylinder 106. Due to the fact that the outer forming plate 109 and the inner forming plate 110 are arranged, the inner forming plate 110 is located inside the carton, the outer forming plate 109 is located outside the carton, the lug plate is located between the outer forming plate 109 and the inner forming plate 110, the outer forming plate 109 completes bending and pressing of the lug plate, and the inner forming plate 110 limits and supports the lug plate. Adopt the carton shaping ear plate folding mechanism 10 of this application, the folding of ear plate is accomplished in outside shaping board 109 and the cooperation of inside shaping board 110, can be to exceeding the smooth ear plate folding operation that carries on of 100X100X100mm big carton of size, and is more high-efficient, can also improve the folded qualification rate of ear plate simultaneously, avoids because of big carton rigidity is poor, easily leads to the phenomenon of ear plate folding failure.

As shown in fig. 5, in one embodiment, the outer forming plate 109 includes a first ear plate folding plate 1091 and a second ear plate folding plate 1092, the first ear plate folding plate 1091 is disposed horizontally, the second ear plate folding plate 1092 is disposed obliquely, and the second ear plate folding plates 1092 on the left and right sides are adjacent to each other in a splayed shape. First otic placode folded sheet 1091 one end and connecting plate 108 fixed connection, the other end and second otic placode folded sheet 1092 are connected, and first otic placode folded sheet 1091 and second otic placode folded sheet 1092 set up integratively. Specifically, one side of the first ear plate folding plate 1091, which is far away from the second ear plate folding plate 1092, is provided with an installation plate 1093, the installation plate 1093 is provided with at least one strip-shaped through hole, and the width direction of the strip-shaped through hole in the installation plate 1093 is the same as the width direction between the left side and the right side of the ear plate folding cylinder 106. The outer forming plate 109 is fixedly connected with the connecting plate 108 through a strip-shaped through hole.

In the process of folding the ear plate, the second ear plate folding plate 1092 contacts with the ear plate first, and the inclined second ear plate folding plate 1092 is provided, so that when the ear plate contacts with the second ear plate folding plate 1092, a process of alleviating transition is provided, and the ear plates are changed from an open state to a state of being mutually close to and folded inwards. The second ear plate folding plate 1092 rotates the ear plates inward, and after the ear plates on the left and right sides approach each other, the first ear plate folding plate 1091 contacts with the ear plates, so that the ear plates are further bent and pressed. The outside forming plate 109 of this structure can realize that bigger size's otic placode is folding when folding the otic placode, avoids directly removing when folding big otic placode with first otic placode folded sheet 1091, because the otic placode is too big, the carton rigidity is poor, the condition that takes place the mistake and warp appears. The yield and the efficiency of the ear plate folding are improved.

The mounting plate 1093 is provided to fix the outer forming plate 109 to the connecting plate 108, and it is only necessary to provide a strip-shaped through hole in the mounting plate 1093, so the length of the mounting plate 1093 is smaller than the length of the first ear plate folding plate 1091, and the mounting plate 1093 meets the requirements, saves materials, and reduces the cost. As shown in fig. 4, the connecting line between the left and right connecting plates 108 is the width direction, and the direction perpendicular to the width direction, i.e., the length direction, is on the same horizontal plane, and the direction perpendicular to the width direction, i.e., the height direction, is on the same vertical plane. Set up the bar through-hole on the mounting panel 1093, the distance between the outside mounting panel 1093 of more nimble adjustment left and right sides increases the suitability in the ear plate fixture device width of book.

As shown in FIG. 9, in one embodiment, the attachment plates 108 include a first attachment plate 1081 and a second attachment plate 1082. One end of the first connecting plate 1081 is fixedly connected to the second cylinder rod 107 of the ear plate folding cylinder 106, and the other end is fixedly connected to the second connecting plate 1082. At least one strip-shaped through hole is formed in the second connecting plate 1082, one end of the second connecting plate 1082 is fixedly connected with the first connecting plate 1081 through the strip-shaped through hole, and the other end of the second connecting plate 1082 is fixedly connected with the mounting plate 1093. The strip-shaped through holes on the second connecting plate 1082 are used for adjusting the height of the second connecting plate 1082.

By designing the connecting plate 108 in a structure with two independent first and second connecting plates 1081 and 1082, the use of the connecting plate 108 is made more flexible. For example, when the size of connecting plate 108 is not suitable, if connecting plate 108 is not split into first connecting plate 1081 and second connecting plate 1082, connecting plate 108 needs to be replaced as a whole; if the connecting plate 108 is divided into the first connecting plate 1081 and the second connecting plate 1082, when the second connecting plate 1082 is inappropriate, only the second connecting plate 1082 needs to be replaced. By providing the strip-shaped through hole on the second connecting plate 1082, the flexibility of use in the height of the lug plate clamp device can be increased. For example, when the height adjustment distance of the first cylinder rod 103 on the lift cylinder 102 is not sufficient, the second link plate 1082 may be installed downward with respect to the first link plate 1081 through the strip through hole.

As shown in fig. 8, in an embodiment, the ear folding plate clamping device further includes a third connecting plate 111, and the third connecting plate 111 includes a horizontal plate and a vertical plate, the vertical plate is fixed on the side surface of the ear folding cylinder 106, and the horizontal plate is located at the lower side of the bottom of the ear folding cylinder 106. As shown in fig. 6, the inner forming plate 110 includes a horizontal aligning plate 112, a fourth connecting plate 113 and a fifth connecting plate 114, and the horizontal aligning plate 112, the first ear plate folding plate 1091 and the fifth connecting plate 114 are parallel to each other. One end of the fourth connecting plate 113 is connected to the fifth connecting plate 114, and the other end is connected to the horizontal aligning plate 112. At least one strip-shaped through hole is formed in the fifth connecting plate 114, and the inner forming plate 110 is fixedly connected with the horizontal plate through the strip-shaped through hole in the fifth connecting plate 114. The fourth connecting plates 113 on the left and right inner forming plates 110 are disposed adjacent to each other.

The third connecting plate 111 is provided to more conveniently fixedly connect the inner forming plate 110. The height difference of vertical board, the distance between horizontal plate and the otic placode folding cylinder 106 bottom is just different, and the height of concrete vertical board sets up as required, does not do specific restriction. The horizontal trimming plate 112, the fourth connecting plate 113 and the fifth connecting plate 114 are integrally formed. The stripe-shaped through holes of the fifth connecting plate 114 can adjust the distance between the inner forming plates 110 at the left and right sides. For example, for a smaller paper cassette, the distance between the left and right inner mounting plates 1093 can be reduced by adjusting the mounting positions of the strip-shaped through holes in the fifth connecting plates 114; for a larger paper cassette, the distance between the left and right inner mounting plates 1093 can be increased by adjusting the mounting positions of the strip-shaped through holes in the fifth connecting plate 114. The fifth connecting plate 114 is provided with a strip-shaped through hole, so that the use flexibility of the folded lug plate clamp device in the width direction is improved.

As shown in fig. 7, in one embodiment, the inner forming plate 110 further includes an end guide plate 115 and a guide wedge block 116. An end guide plate 115 is arranged on one side of the horizontal arranging plate 112 far away from the fourth connecting plate 113, and the end guide plate 115 is bent towards one side close to the fourth connecting plate 113. A guide wedge block 116 is secured to the bottom of the inner forming plate 110 and the guide wedge block 116 is used to collate the articles within the carton. The guide wedge block 116 is a downwardly convex structure along the bottom of the inner forming plate 110, the guide wedge block 116 has an inclined surface, and the inclined surfaces on the left and right guide wedge blocks 116 are far away from each other to form an inverted V-shape.

When the ear plates are folded, a plurality of bags of toilet paper are arranged in the paper box, namely the bags of toilet paper are distributed in a messy manner in the paper box, and the heights of different positions are inconsistent. When the inner forming plate 110 is placed in the carton, the end guide plate 115 is a guide plate close to the side wall of the carton, the width of the end guide plate 115 is smaller, and the end guide plate 115 has a smaller bending arc, for example, the end guide plate 115 is a guide plate with a width of 3cm, and the end guide plate 115 with a smaller bending arc has a smaller width, when the inner forming plate 110 enters the carton, the wrapping paper at the side wall of the carton can be locally guided and arranged, so that the wrapping paper at the side wall of the carton moves to the inside of the carton. Set up direction wedge 116, can be bigger area carry out article arrangement to the inside package packing paper of carton, also can flatten the arrangement to fluffy supplied materials for the inside article of carton is placed more neatly, and highly even unanimous more between each part, and the downside of rethread water level neatening board 112 flattens the arrangement to the package packing paper in the carton. Meanwhile, the upper side of the horizontal arranging plate 112 plays a role in supporting and limiting the lug plate, so that the phenomenon that the lug plate is uneven in stress and easy to deform is prevented, and the lug plate is prevented from being pressed into the carton to an overlarge degree.

As shown in fig. 3, in one embodiment, at least one linear bearing 104 is disposed on the top of the bracket body 101, at least one guide shaft 105 is disposed between the top of the bracket body 101 and the ear plate folding cylinder 106, one end of the guide shaft 105 is fixed on the ear plate folding cylinder 106, and the other end passes through the linear bearing 104. Set up guiding axle 105 and can increase the lift stability of book otic placode fixture device, avoid book otic placode fixture device to take place to rotate at the in-process that goes up and down, guiding axle 105 is for the effect of a power of book otic placode fixture device simultaneously for book otic placode fixture device's lift is more stable. Specifically, a fixing plate may be disposed between the guide shaft 105 and the top of the ear plate folding cylinder 106, the fixing plate is fixed on the ear plate folding cylinder 106, one end of the guide shaft 105 is connected and fixed on the fixing plate, and the other end of the guide shaft passes through the linear bearing 104.

The fixed connection can be realized by adopting a detachable fixed connection mode, such as bolt connection and fixation. The detachable connection mode is convenient for the assembly, maintenance and replacement of the device.

In one embodiment, the lift cylinder 102 is an adjustable stroke lift cylinder. The lifting cylinder 102 can be adjusted to sink to a proper height by adjusting the knob of the lifting cylinder with the adjustable stroke, so that the use is more convenient.

As shown in fig. 10, the paper cassette 20 includes a cassette body 21, an ear panel 22, and a cassette cover 23. As shown in fig. 1, when the ear panels 21 of the paper box 20 are bent and pressed, the paper box forming and ear panel folding mechanism 10 needs the paper box pressing mechanism 30 to press the paper box 20. The paper box pressing mechanism 30 presses the paper box 20, so that on one hand, the relative position of the paper box 20 can be prevented from shifting when the ear plates of the paper box 20 are folded, and on the other hand, after the ear plates are folded, the ear plate clamp device is prevented from being taken out of the whole paper box 20 when being lifted.

The present application has been described with reference to specific examples, which are provided only to aid understanding of the present application and are not intended to limit the present application. For a person skilled in the art to which the application pertains, several simple deductions, modifications or substitutions may be made according to the idea of the application.

Claims (10)

1. The utility model provides a lug plate mechanism is folded in carton shaping which characterized in that includes: the lifting device comprises a bracket body, a lifting device and a lug folding plate clamp device;

the ear plate folding clamp device comprises an ear plate folding cylinder, and the left side and the right side of the ear plate folding cylinder are both provided with a connecting plate and an external forming plate; the ear plate folding cylinder is connected with one end of the connecting plate; the other end of the connecting plate is connected with the external forming plate; the lower side of the bottom of the lug plate folding cylinder is symmetrically provided with an inner forming plate, the outer forming plate is positioned on the lower side of the bottom of the lug plate folding cylinder, and the inner forming plate is positioned on the lower side of the outer forming plate;

the lifting device comprises a lifting cylinder, the lifting cylinder is fixed to the top of the support body, and the lifting cylinder is connected with the ear plate folding cylinder.

2. A carton forming and ear folding mechanism as claimed in claim 1, wherein said outer forming panel comprises a first ear panel folding panel and a second ear panel folding panel, said first ear panel folding panel is placed horizontally, said second ear panel folding panel is placed obliquely, and said second ear panel folding panels on the left and right sides are adjacent to each other in a splayed shape; first otic placode folded sheet one end with connecting plate fixed connection, the other end with the second otic placode folded sheet is connected.

3. A carton forming and ear folding mechanism as claimed in claim 2, wherein a mounting plate is provided on a side of the first ear plate folding plate away from the second ear plate folding plate, the mounting plate is provided with at least one strip-shaped through hole, and the width direction of the strip-shaped through hole on the mounting plate is the same as the width direction between the left side and the right side of the ear plate folding cylinder; the external forming plate is fixedly connected with the connecting plate through the strip-shaped through hole.

4. A carton forming and ear folding mechanism as in claim 3 wherein said web comprises a first web and a second web; one end of the first connecting plate is connected with the ear plate folding cylinder, and the other end of the first connecting plate is fixedly connected with the second connecting plate; the second connecting plate is provided with at least one strip-shaped through hole, one end of the second connecting plate is fixedly connected with the first connecting plate through the strip-shaped through hole, and the other end of the second connecting plate is fixedly connected with the mounting plate; the strip-shaped through holes in the second connecting plate are used for adjusting the height of the second connecting plate.

5. The carton forming and ear folding mechanism of claim 3 wherein said ear folding clamp means further comprises a third connecting plate, said third connecting plate comprising a horizontal plate and a vertical plate, said vertical plate being secured to a side of said ear folding cylinder, said horizontal plate being located on an underside of a bottom of said ear folding cylinder.

6. A carton forming and ear folding mechanism as in claim 5 wherein said inner forming panel comprises a horizontal trimming panel, a fourth connecting panel and a fifth connecting panel, said horizontal trimming panel, first ear folding panel and said fifth connecting panel being parallel to each other; one end of the fourth connecting plate is connected with the fifth connecting plate, and the other end of the fourth connecting plate is connected with the horizontal arranging plate; the fifth connecting plate is provided with at least one strip-shaped through hole, and the internal forming plate is fixedly connected with the horizontal plate through the strip-shaped through hole in the fifth connecting plate; the fourth connecting plates on the inner forming plates on the left side and the right side are arranged close to each other.

7. A carton forming ear flap mechanism as in claim 6 wherein said inner forming panel further comprises an end guide panel and a guide wedge; the end part guide plate is arranged on one side, far away from the fourth connecting plate, of the horizontal arranging plate, and the end part guide plate is bent towards one side, close to the fourth connecting plate; the guide wedge block is fixed at the bottom of the inner forming plate and used for arranging articles in the paper box.

8. A carton forming and ear folding mechanism as in claim 7 wherein said guide wedge is of downwardly convex configuration along the bottom of said inner forming panel, said guide wedge having inclined surfaces, the inclined surfaces of said guide wedges on the left and right sides being spaced apart to form an inverted chevron.

9. A carton forming and ear folding mechanism as claimed in claim 1, wherein at least one linear bearing is provided on the top of said supporting frame, at least one guiding shaft is provided between said top of said supporting frame and said ear folding cylinder, one end of said guiding shaft is fixed on said ear folding cylinder, and the other end passes through said linear bearing.

10. A carton forming and ear folding mechanism as claimed in any one of claims 1 to 9, wherein said lifting cylinder is an adjustable stroke lifting cylinder.

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