Paper box forming mechanism

Abstract

The invention discloses a paper box forming mechanism which is characterized in that the paper box forming mechanism comprises a first edge folding device and a second edge folding device, the first edge folding device comprises a first lower die, a first upper die and an upper paper folding piece, the first upper die and the upper paper folding piece lift up and down, and the second edge folding device comprises a second lower die, a lower paper folding piece and a second upper die, and the lower paper folding piece and the second upper die lift up and down. The first edge folding device and the second edge folding device are adopted for folding the paperboard into the box body with the containing cavity, automatic forming of the packaging box is achieved, existing manual machining is replaced, the working efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to an improved invention of a packaging machine, and in particular to a paper box forming mechanism suitable for a paper box packaging packaging machine, such as packaging of batteries, toothbrushes, etc. Background Art

[0002] Traditional battery packaging boxes are made of paper and plastic, which are not environmentally friendly and difficult to recycle. The structure of traditional hangable paper boxes is relatively complex and the boxes need to be made manually, which has the problems of high cost and low efficiency. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a packaging machine to realize automatic forming of paper boxes and packaging of materials, replace manual work, improve efficiency and reduce costs.

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: the packaging machine includes a frame, a lower paper card mechanism, a paper box forming mechanism, a paper box conveying mechanism, a bottom plate folding mechanism and a sealing mechanism, and is characterized in that the paper box forming mechanism includes a first folding device and a second folding device, the first folding device includes a first lower mold and a first upper mold and an upper folding paper piece that can be lifted up and down, the second folding device includes a second lower mold and a lower folding paper piece box and a second upper mold that can be lifted up and down, and the bottom plate folding mechanism includes a pressure plate that can be lifted up and down.

[0005] The upper folding paper part includes an upper folding paper board, the upper folding paper board and the first upper mold are installed on a first upper mold base that can be lifted up and down, the first lower mold has a slot for the upper folding paper board to be inserted, the lower folding paper part includes a lower folding paper board, the second lower mold has a wire groove for lifting the lower folding paper board, and the second upper mold is installed on a second upper mold base that can be lifted up and down.

[0006] The frame is provided with a lower paper card station, a first folding station, a second folding station, a paper feeding box station, a feeding station, a folding and pressing station and a sealing station; the first upper mold is arranged at the first folding station, the second upper mold is arranged at the second folding station, the first lower mold and the second lower mold are connected to a driving component for driving them to move forward and backward; a linear guide rail is installed on the frame, a slide seat is slidably arranged on the linear guide rail, and the slide seat is installed on the first lower mold and the second lower mold.

[0007] The first upper mold includes a pressing plate and a suction nozzle, wherein the suction nozzle is mounted on the pressing plate and connected to an air pump, and the second upper mold includes a pressing plate 2 and a suction nozzle 2, wherein the suction nozzle 2 is mounted on the pressing plate 2 and connected to an air pump 2.

[0008] A guide post is installed on the pressing plate, a guide hole for the guide post to pass through is provided on the first upper die seat, a spring is provided on the outer sleeve of the guide post, and the spring is arranged between the pressing plate and the first upper die seat.

[0009] The shape of template 1 of the first lower mold is the same as the shape of the box body of the packaging box after unfolding, and the folding lines of the upper folding paper board and the connecting plate of the packaging box are arranged correspondingly; the shape of template 2 of the second lower mold is the same as the panel shape of the box body of the packaging box, and the folding lines of the lower folding paper board and the side panel of the packaging box are arranged correspondingly.

[0010] The lifting of the second upper die seat has two strokes, the first stroke is that the second upper die moves to the second folding station, and the second stroke is that the second upper die moves to the paper feeding box station.

[0011] The paper box conveying mechanism includes a feeding template and a transmission belt. The feeding template is arranged on the transmission belt. The transmission belt passes through a paper box feeding station, a feeding station, a folding and pressing station and a sealing station. A positioning pin is arranged on the second upper mold base, and the positioning pin matches the socket on the feeding template.

[0012] The bottom plate folding and pressing mechanism also includes a push-pull component for driving the pressing plate to move forward and backward. The frame is provided with a second linear guide rail and a second slide seat slidably matched with the second linear guide rail, and the second slide seat is installed on the pressing plate.

[0013] The bottom plate folding and pressing mechanism also includes a top plate device, which is arranged at the folding and pressing station and includes a top pin and a lifting component for driving the top pin to rise and fall.

[0014] The paper box forming mechanism of the present invention realizes automatic forming of the paper box, and the bottom plate folding mechanism covers the bottom plate of the paper box with materials added and seals the paper box, thereby realizing automatic packaging of the materials, replacing the existing manual processing, improving work efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic diagram of paper box molding.

[0016] Figure 2 It is a structural schematic diagram of the present invention.

[0017] Figure 3 It is a schematic diagram of the paper box forming mechanism of the present invention.

[0018] Figure 4 It is a partial schematic diagram of the first folding device of the present invention.

[0019] Figure 5 Schematic diagram of the first upper mold of the present invention.

[0020] Figure 6It is a partial schematic diagram of the second folding device of the present invention.

[0021] Figure 7 Schematic diagram of the first lower mold and the second lower mold of the present invention.

[0022] Figure 8 It is a top view of the first lower mold and the second lower mold of the present invention.

[0023] Fig. 9 It is a schematic diagram of the lower folding paper board of the present invention.

[0024] Fig.10 It is a schematic diagram of the feeding template of the present invention.

[0025] Fig.11 It is a schematic diagram of the bottom plate folding mechanism of the present invention.

[0026] Fig.12 It is a schematic diagram of the top plate device of the present invention. DETAILED DESCRIPTION

[0027] The following describes the details and working principles of the implementation mode and examples of the present invention in conjunction with the accompanying drawings. This type of carton packaging machine includes a frame 40, a lower paper card mechanism 41, a carton forming mechanism 42, a carton conveying mechanism 43, a bottom plate folding and pressing mechanism 44 and a sealing mechanism 45. The lower paper card mechanism 41 and the sealing mechanism 45 are both existing technologies and their specific structures are not described in detail; the carton forming mechanism 42 includes a first folding device and a second folding device, and the frame is provided with a lower paper card station, a first folding station, a second folding station, a paper box feeding station, a feeding station, a folding and pressing station and a sealing station. The feeding station can be fed manually or by a feeding mechanism; the carton conveying mechanism 43 includes a feeding template 25 and a transmission belt. The feeding template 25 is arranged on the transmission belt, and the transmission belt passes through the paper box feeding station, the feeding station, the folding and pressing station and the sealing station. See attached Figure 1 The packaging box includes a bottom plate 2 and a box body 1. The box body has a panel 5 and a left end surface 4, a right end surface, an upper end surface and a lower end surface. The left end surface, the right end surface, the upper end surface and the lower end surface are connected to the panel 5 as a whole. The lower end surface of the box body 1 is connected to the bottom of the bottom plate 2 as a whole, that is, the box body 1 and the bottom plate 2 are connected as a whole and are formed by a piece of cardboard; the left end surface, the right end surface and the upper end surface of the box body are extended with their own connecting plates 3. Figure 1When the middle packaging box is not formed, it is a cardboard. After the first folding, the connecting plate 3 and the bottom plate 2 are vertically arranged relative to the panel 5, the left, right, upper and lower end surfaces of the box body. After the second folding, the left, right, upper and lower end surfaces of the box body 1 are vertically arranged relative to the panel 5. The panel 5 and the left, right, upper and lower end surfaces form a cavity. The box body 1 is formed. After the box body is formed, materials can be added, and the bottom plate folding mechanism folds the bottom plate toward the box body. The bottom plate 2 covers the box body and seals the materials in the box body; the lower paper card station is the station for placing paper cards. The first folding station folds the connecting plate, and the second folding station folds the left, right, upper and lower end surfaces.

[0028] See attached Figure 4 , 78, the first folding device includes a first lower mold 6, a first upper mold 7 and an upper folding paper piece, the upper folding paper piece includes an upper folding paper board 10, the upper folding paper board 10 and the first upper mold 7 are installed on a first upper mold base 11 that can be lifted up and down, the first upper mold 7 is set at the first folding station, the first lower mold 6 has a slot 19 for inserting the upper folding paper board, the shape of the template 120 of the first lower mold is the same as the shape of the box body of the packaging box after unfolding, and the box body here refers to the panel 5 and The left end face, right end face, upper end face and lower end face do not include the connecting plate 3. The upper folding paper board 10 is arranged corresponding to the folding line 30 of the connecting plate of the packaging box. When the first lower mold 7 is in the first folding station, the first upper mold 7 moves down and cooperates with the first lower mold 6 to press the paper card. The upper folding paper board 10 presses down the connecting plate 3 and is inserted into the slot 19. The connecting plate 3 is folded downward along the folding line 30. The connecting plate 3 and the bottom plate 2 are vertically arranged relative to the panel 5 and the left end face, right end face, upper end face and lower end face.In order to realize automatic position change and paper card feeding, the first lower mold 6 and the second lower mold 8 are connected to a driving component that drives them to move forward and backward, so that the first lower mold 6 moves between the lower paper card station and the first folding station, and the second lower mold 8 moves between the first folding station and the second folding station. The driving component can be driven by a cylinder or a screw mechanism; in order to improve the stability of movement, a linear guide 26 is installed on the frame, and a slide 27 is slidably arranged on the linear guide. The slide 27 is installed on the first lower mold 6 and the second lower mold 8. The first lower die and the second lower die move forward and backward along the linear guide rail 26. In this embodiment, the first lower die 6 and the second lower die 8 are both installed on the lower die seat 21; the first upper die 7 includes a pressing plate 12 and a suction nozzle 15, the suction nozzle is installed on the pressing plate, the suction nozzle 15 is connected to the air pump, and the shape of the pressing plate 12 is roughly the same as the shape of the template 1 20, so that the box body can be pressed to improve the folding quality; when the first upper die 7 moves downward, the pressing plate 12 and the template 1 20 press the left end face, the right end face and the upper end face of the paper card The first upper mold 7 is pressed against the lower end surface, and after the first folding is completed, the suction nozzle 15 sucks the panel part. When the first upper mold 7 moves up, the paper card leaves the first lower mold 6 and moves up together with the first upper mold 7. When the second lower mold 8 moves to the first folding position, the first upper mold 7 moves down to put the paper card into the second lower mold 8, and then the suction nozzle 15 stops sucking, and the first upper mold 7 moves up and resets, so that the paper card is automatically transferred and replaced; in order to avoid the first upper mold 7 from colliding with the first lower mold 6 when moving down, causing damage to the mold, a guide column 14 is installed on the pressing plate 12. An upper die seat is provided with a guide hole for a guide column to pass through, and a spring 13 is provided on the outer sleeve of the guide column 14, and the spring is arranged between the pressure plate 12 and the first upper die seat 11. The pressure plate can be connected to the first upper die seat through the spring, and can also be connected through the guide column. A limit block is arranged at the upper end of the guide column. The pressure plate is driven downward by the first upper die, and the pressure plate presses the template of the first lower die. The spring is compressed, and the pressure between the pressure plate and the template is buffered, thereby reducing damage to the pressure plate and the template. After the first upper die 7 moves upward, the spring 13 is automatically reset without pressure.

[0029] See attached Figure 5 , 6, 7, 8, 9, the second folding device includes a second lower mold 8, a lower folding paperboard piece that can be lifted up and down, and a second upper mold 9, the lower folding paperboard piece includes a lower folding paperboard 18, the second lower mold 8 has a wire groove 22 for lifting the lower folding paperboard, the box body 1 has four end faces, namely, a left end face, a right end face, an upper end face and a lower end face, the wire groove 22 is provided with four corresponding ones, the lower folding paperboard 18 is also provided with four, and the lower folding paperboard piece is also provided on a lower mold base 21, the second upper mold 9 is installed on a second upper mold base 17 that can be lifted up and down, the template 23 of the second lower mold is the same as the shape of the panel 5 of the packaging box, the lower folding paperboard 18 is provided corresponding to the folding line 31 of the side panel of the packaging box, and the side panel mentioned here is the left end face, the right end face, the upper end face and the lower end face. When the second lower mold 8 is at the second folding station, the second upper mold 9 moves downward and cooperates with the second lower mold to press the panel, and the lower folding paper board 18 moves upward through the line groove 22 and pushes the side panel 4, so that the side panel is folded upward along the folding line 31, and the left end face, right end face, upper end face and lower end face are vertically arranged relative to the panel, so as to realize the paper box forming. Similarly, in order to improve the automation and allow the formed paper box to enter the next process, a feeding template 25 is arranged below the second lower mold 8, and the feeding template is arranged corresponding to the second upper mold 9. The second upper mold 9 sends the formed paper box to the feeding template 25. This station is a box feeding station. A positioning pin 16 is arranged on the second upper mold base 17, and the positioning pin matches the socket 24 on the feeding template. The positioning pin is inserted into the socket to ensure that the second upper mold 9 corresponds to the feeding template 25 up and down, so that the formed paper box is accurately sent to the feeding template; the second upper mold 9 includes a pressing plate 2 and a suction nozzle 2, and the suction nozzle 2 is installed on the pressing plate 2, and the suction nozzle 2 is connected to the air pump 2, and the shape of the pressing plate 2 is roughly the same as that of the panel; in order to avoid the second upper mold 9 from colliding with the second lower mold 8 when moving downward, causing damage to the mold, the structure of the pressing plate 2 installed on the second upper mold base is the same as the structure of the pressing plate of the first upper mold installed on the second upper mold base, which will not be described in detail here. When the second lower mold 8 moves to the second folding station, the pressure plate 2 and the template 2 23 press the panel part of the paper card. After completing the second folding, the suction nozzle 2 sucks the panel part. When the second upper mold 9 moves up, the paper card leaves the second lower mold 8 and moves up together with the second upper mold. When the second lower mold 8 moves to the first folding station, the second upper mold 9 corresponds to the feeding template 25 below, the second upper mold 9 moves down, the positioning pin 16 is inserted into the positioning hole 24, and the second upper mold 9 puts the paper box into the feeding template 25 below, and then the suction nozzle 2 stops sucking, and the second upper mold moves up and resets, thereby realizing the automatic transfer of the formed paper box.

[0030] The lifting of the first upper mold base, the second upper mold base and the lower folding paper board adopts a cylinder, a hydraulic cylinder, a hydraulic cylinder or a screw mechanism. The lifting of the second upper mold base has two strokes. The first stroke is that the second upper mold moves to the second folding station, and the second stroke is that the second upper mold moves to the paper feeding box station. The cylinder, hydraulic cylinder, hydraulic cylinder and screw mechanism as driving components are commonly used technical means in this field, so the structure of the above-mentioned driving components will not be described in detail.

[0031] See attached Fig.11 , 12 The bottom plate folding and pressing mechanism 44 includes a pressing plate 34 that can be lifted up and down. The pressing plate is arranged above the feeding template 11. After the feeding template is fed at the feeding station, it moves to the folding and pressing station. The pressing plate 34 moves down to press the bottom plate 2 against the box body 1, and the connecting plate 3 contacts the bottom plate 1. At the first folding station, the folding line between the bottom plate and the lower end surface has been folded and pressed. Here, it is folded again to improve the folding and pressing effect. In order to improve the stability of folding and pressing, it also includes a push-pull component that drives the pressing plate to move forward and backward. The frame is provided with a linear guide rail 2 32 and a slide seat 2 33 that slides with the linear guide rail 2. The slide seat 2 is installed on the pressing plate 34. When the feeding template 11 moves to the folding and pressing station, the pressing plate 34 moves in the opposite direction relative to the feeding template. , pushing the bottom plate 2 forward to fold, and then the pressing plate presses the bottom plate 2 downward; in order to ensure that the bottom plate is above the pressing plate 34 before folding, the bottom plate folding mechanism also includes a top plate device, which is arranged at the folding station, and the top plate device includes a top pin 36 and a lifting component for driving the top pin to rise and fall, and the feeding template has a through hole 35 for the top pin to pass through. The lifting and lowering of the pressing plate and the lifting and lowering components and the push-pull components can all adopt cylinders, that is, when the feeding template moves to the folding station, the top pin 36 extends upward and passes through the through hole 35 to lift the bottom plate 2 upward, so that the bottom plate 2 is tilted upward to prepare for subsequent folding, and then the pressing plate 34 moves to fold the bottom plate 2 toward the box body 1, and finally presses the bottom plate toward the box body, thus completing the folding operation.

[0032] When the present invention is working, the first lower mold moves to the paper card placing station, the second lower mold moves to the first folding station, the lower paper card mechanism sends the paper card to the first mold, the first upper mold moves downward to put the paper card with the first folded edge into the second lower mold, the second upper mold moves downward to put the formed paper box into the feeding template, the first lower mold moves to the first folding station, the second lower mold moves to the second folding station, the feeding template sends the paper box to the feeding station, the material is sent into the paper box, and the other feeding template on the transmission belt moves to the box feeding station. At this time, the first upper mold moves downward to cooperate with the first lower mold to fold the connecting plate and the bottom plate downward, and the second upper mold moves downward to cooperate with the second lower mold to fold the side plate Fold upward to form a paper box, and then the first upper mold and the second upper mold move up and reset, the first lower mold and the second lower mold move forward, respectively move to the paper card placing station and the first folding station, the first upper mold and the second upper mold respectively perform the transfer operation of the paper card and the paper box, and so on are repeated, the transmission belt completes the feeding template of the material to the folding and pressing station, the ejector extends to lift the bottom plate upward, the pressing plate pushes the bottom plate to fold toward the box body, and finally the pressing plate presses the bottom plate down to cover the box body, the connecting plate and the bottom plate fit together, and then the pressing plate resets, the feeding template sends the box body to the sealing station, the sealing mechanism seals and connects the box body and the bottom plate, the material is sealed in the box body, and the packaging of the material is completed.

Claims

1. A carton forming mechanism, characterized in that: It includes a first folding device and a second folding device. The first folding device includes a first lower mold and a first upper mold and an upper folding paper piece that can be lifted up and down. The second folding device includes a second lower mold and a lower folding paper piece that can be lifted up and down and a second upper mold.

2. The paper box forming mechanism according to claim 1, characterized in that: The upper folding paper part comprises an upper folding paper board, and the upper folding paper board and the first upper mold are installed on a first upper mold base which can be lifted up and down; The lower paper folding piece includes a lower paper folding board, and the second upper mold is installed on a second upper mold base that can be lifted up and down.

3. The paper box forming mechanism according to claim 2, characterized in that: The first lower mold has a slot for the upper folding paper board to be inserted; The second lower mold is provided with a wire groove for the lower folding paper board to be lifted and lowered.

4. The paper box forming mechanism according to claim 1, characterized in that: The frame is provided with a lower paper card station, a first folding station, and a second folding station. The first upper mold is arranged at the first folding station, and the second upper mold is arranged at the second folding station. The first lower mold and the second lower mold are connected to a driving component that drives them to move forward and backward.

5. The paper box forming mechanism according to claim 4, characterized in that: A linear guide rail is installed on the frame, a slide seat is slidably arranged on the linear guide rail, and the slide seat is installed on the first lower mold and the second lower mold.

6. The paper box forming mechanism according to claim 1, characterized in that: The first upper mold includes a pressing plate and a suction nozzle, the suction nozzle is mounted on the pressing plate, and the suction nozzle is connected to an air pump; The second upper mold includes a second pressing plate and a second suction nozzle, wherein the second suction nozzle is installed on the second pressing plate and connected to the second air pump.

7. The paper box forming mechanism according to claim 6, characterized in that: A guide post is installed on the pressing plate, a guide hole for the guide post to pass through is provided on the first upper die seat, a spring is provided on the outer sleeve of the guide post, and the spring is arranged between the pressing plate and the first upper die seat.

8. The paper box forming mechanism according to claim 2, characterized in that: The shape of the template 1 of the first lower mold is the same as the shape of the box body of the packaging box after it is unfolded, and the folding lines of the upper folding paper board and the connecting plate of the packaging box are arranged correspondingly.

9. The paper box forming mechanism according to claim 2 or 8, characterized in that: The shape of the template 2 of the second lower mold is the same as the panel shape of the box body of the packaging box, and the folding lines of the lower folding paper board and the side panels of the packaging box are arranged correspondingly.

10. The paper box forming mechanism according to claim 1, characterized in that: The second upper die seat is provided with a positioning pin, and the positioning pin matches the insertion hole on the feeding template; The lifting of the second upper die seat has two strokes, the first stroke is that the second upper die moves to the second folding station, and the second stroke is that the second upper die moves to the paper feeding box station.

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