Carton unpacking machine

Abstract

The utility model discloses a carton unpacking machine which comprises a machine frame, a positioning plate and two sets of belt conveying mechanisms are arranged on the machine frame, each belt conveying mechanism comprises an installation frame, and a carton conveying channel is formed between the two installation frames. The device further comprises an adjusting mechanism, the adjusting mechanism comprises two first screws and a second screw, each first screw is provided with a forward-spinning thread section and a backward-spinning thread section, two first thread sleeves matched with the forward-spinning thread sections on the two first screws are arranged at the bottom of one mounting frame, and two second thread sleeves matched with the backward-spinning thread sections on the two second screws are arranged at the bottom of the other mounting frame. The bottom of the other mounting frame is provided with two second threaded sleeves matched with the reverse rotation threaded sections on the two first threaded rods correspondingly, the bottom of the positioning plate is provided with driven threaded sleeves matched with the second threaded rods, and the second threaded rods and the two first threaded rods are in linkage connection through transmission assemblies so that the second threaded rods and the two first threaded rods can rotate at the same time. The position of the positioning plate and the distance between the two sets of belt conveying mechanisms can be adjusted at the same time, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of carton unpacking, in particular to a carton unpacking machine. Background Art

[0002] With the development of carton technology, there are more and more forms of cartons, especially those that only need to be unfolded and then can be put into the packing operation. The above process is realized by an unpacking machine, which refers to a special device that automatically completes unpacking, forming, and folding the bottom leaf of the carton, and at the same time completes the pasting of the lower part of the tape, opens the box board stacked into cardboard, folds the bottom of the box according to a certain procedure, and seals it with tape and then conveys it to the packing machine.

[0003] In the prior art, a carton unpacking machine usually includes an unpacking device for opening the carton and a sealing device for folding and sealing the bottom of the carton with tape. Among them, the sealing device has two belt transmission mechanisms for transporting the carton. A carton transmission channel is formed between the two belt transmission mechanisms. The two belt transmission mechanisms clamp on both sides of the carton and drive the carton forward through friction. The distance between the two belt transmission mechanisms is adjusted by a set of first adjustment components to adapt to the width of the carton. And in the sealing device, the opened carton is pre-positioned and aligned with the positioning plate at the inlet of the carton transmission channel. At the same time, the position of the positioning plate is adjusted by a second adjustment component. When adjusting the first adjustment component, the second adjustment component also needs to be adjusted accordingly so that the carton can smoothly enter the carton transmission channel. Since the first adjustment component and the second adjustment component in the prior art are relatively independent and need to be adjusted separately, the operation is rather troublesome. Therefore, it is necessary to improve this structure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a carton unpacking machine, which can adjust the position of the positioning plate and the distance between the two belt transmission mechanisms at the same time, and the operation is more convenient.

[0005] To achieve the above object, the present utility model provides the following technical solution: A carton opening machine, including a frame, on which a positioning plate for pre-positioning the opened carton and two parallel belt transmission mechanisms for transporting the carton are provided. The belt transmission mechanism includes a mounting frame for installing a motor and a belt. A carton transmission channel is formed between the mounting frames of the two belt transmission mechanisms; further including an adjustment mechanism, the adjustment mechanism includes two first screws and a second screw rotatably provided on the frame. The first screw and the second screw are both perpendicular to the mounting frame. The first screw is provided with a positive thread section and a reverse thread section. Two first screw sleeves respectively cooperating with the positive thread sections on the two first screws are provided at the bottom of one mounting frame, and two second screw sleeves respectively cooperating with the reverse thread sections on the two first screws are provided at the bottom of the other mounting frame. The positioning plate is slidably arranged on the frame perpendicular to the carton transmission channel. A driven screw sleeve cooperating with the second screw is provided at the bottom of the positioning plate. The second screw and the two first screws are linked by a transmission component, so that the second screw and the two first screws rotate simultaneously.

[0006] By adopting the above technical solution, the second screw and the two first screws are linked by setting a transmission component, that is, the three can rotate simultaneously. When the two mounting frames approach or move away from each other to change the width of the carton transmission channel, the positioning plate also changes its position accordingly, so that the carton can be smoothly pushed into the carton transmission channel. Only by rotating any one of the screws, the other two screws will rotate simultaneously, and the operation is very convenient.

[0007] The present utility model is further provided that the transmission component includes a first driving sprocket, a second driving sprocket, a first driven sprocket, a second driven sprocket, a first chain and a second chain. The first driving sprocket and the second driving sprocket are linked and installed on one of the first screws close to the second screw. The first driven sprocket is linked and installed on one of the first screws far from the second screw. The second driven sprocket is linked and installed on the second screw. The first chain is meshed and connected to the first driving sprocket and the first driven sprocket. The second chain is meshed and connected to the second driving sprocket and the second driven sprocket.

[0008] By adopting the above technical solution, the linkage of the second screw and the two first screws is realized through two chain drive structures, the transmission ratio is accurate, and the work is more reliable.

[0009] The present utility model is further provided that the first driving sprocket and the second driving sprocket are an integrated double sprocket structure.

[0010] By adopting the above technical solution, not only the synchronization is good, but also the installation is convenient.

[0011] The present utility model is further configured such that bearing seats are cooperatively connected to both ends of the first screw rod and both ends of the second screw rod corresponding to the frame.

[0012] By adopting the above technical solution, not only can the positioning and installation of the first screw rod and the second screw rod be realized, but also the friction is small and the operation is more labor-saving.

[0013] The present utility model is further configured such that an operating handwheel is linked and installed at the end of one of the first screw rods close to the second screw rod.

[0014] By adopting the above technical solution, the rotation of the operating handwheel drives the operation of the entire adjustment mechanism, and the operation is easy and labor-saving.

[0015] The present utility model is further configured such that two support rods are provided at the bottom of the installation frame, a connecting plate is provided at the bottom end of the support rods, and the connecting plate is detachably connected to the first screw sleeve or the second screw sleeve through a plurality of screws.

[0016] By adopting the above technical solution, the disassembly and assembly of the belt transmission mechanism are greatly facilitated, which is beneficial to the pre-assembly production and subsequent disassembly and maintenance operations.

[0017] The present utility model is further configured such that a carton positioning frame and an arc-shaped baffle provided in front of the carton positioning frame are further provided on the frame. After the carton is positioned on the carton positioning frame, when the carton is pulled away from the carton positioning frame, the arc-shaped baffle acts on one side of the carton to open the carton; a carton pushing assembly is further provided on the side of the arc-shaped baffle, and the carton pushing assembly includes a carton pushing cylinder and a pushing plate installed on the carton pushing cylinder. When the carton pushing cylinder drives the pushing plate to extend, the pushing plate pushes the carton into the carton transmission channel.

[0018] By adopting the above technical solution, the carton can be sucked out by a suction cup to realize the automatic opening of the carton, and then the carton is pushed into the carton transmission channel by the carton pushing assembly. Its structure is simple and reliable, and the carton opening is very fast.

[0019] The present utility model is further configured such that a height control mechanism for adjusting the transmission height of the carton is further provided at a position above the two groups of belt transmission mechanisms on the frame. The height control mechanism includes a gantry, a pressing plate, and an adjusting lead screw. Both sides of the pressing plate are in contact with the gantry. The adjusting lead screw is rotatably installed on the gantry in the vertical direction. An adjusting handwheel is linked and installed at the upper end of the adjusting lead screw, and a lead screw nut matched with the adjusting lead screw is provided on the pressing plate.

[0020] By adopting the above technical solution, rotating the handwheel drives the rotation of the adjusting lead screw, and then drives the pressing plate to rise and fall, pressing down the carton with too high a position in the carton transmission channel, so that all cartons in the transmission process are kept at the same height, which is beneficial to the carton sealing mechanism to perform the carton sealing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the first perspective of the overall utility model;

[0022] Figure 2 is a schematic structural diagram of the first perspective of the overall utility model;

[0023] Figure 3 is a schematic structural diagram of the adjusting mechanism of the utility model.

[0024] In the figure: 1, frame; 2, positioning plate; 3, belt transmission mechanism; 4, mounting frame; 5, carton transmission channel; 6, adjusting mechanism; 7, first screw; 8, second screw; 9, positive thread section; 10, reverse thread section; 11, first nut sleeve; 12, second nut sleeve; 13, driven nut sleeve; 14, transmission component; 15, first driving sprocket; 16, second driving sprocket; 17, first driven sprocket; 18, second driven sprocket; 19, first chain; 20, second chain; 21, bearing seat; 22, operating handwheel; 23, support rod; 24, connecting plate; 25, carton positioning frame; 26, arc-shaped baffle; 27, box pushing component; 28, box pushing cylinder; 29, pushing plate; 30, height control mechanism; 31, gantry; 32, pressing plate; 33, adjusting lead screw; 34, adjusting handwheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment: As shown in the attached Figures 1 to 3A carton unpacking machine shown in the figure includes a frame 1. A positioning plate 2 for pre-positioning the opened carton and two groups of belt transmission mechanisms 3 arranged in parallel for transporting the cartons are provided on the frame 1. The belt transmission mechanism 3 is a mature technology in the existing carton unpacking machines. The belt transmission mechanism 3 includes a mounting frame 4 for installing the motor and the belt. A carton transmission channel 5 is formed between the mounting frames 4 of the two groups of belt transmission mechanisms 3. It also includes an adjusting mechanism 6. The adjusting mechanism 6 includes two first screw rods 7 and a second screw rod 8 rotatably arranged on the frame 1. The first screw rod 7 and the second screw rod 8 are both perpendicular to the mounting frame 4. A right-handed thread section 9 and a left-handed thread section 10 are provided on the first screw rod 7. Two first screw sleeves 11 respectively matching with the right-handed thread sections 9 on the two first screw rods 7 are provided at the bottom of one mounting frame 4. Two second screw sleeves 12 respectively matching with the left-handed thread sections 10 on the two first screw rods 7 are provided at the bottom of the other mounting frame 4. The positioning plate 2 is slidably arranged on the frame 1 perpendicular to the carton transmission channel 5. A driven screw sleeve 13 matching with the second screw rod 8 is provided at the bottom of the positioning plate 2. The second screw rod 8 and the two first screw rods 7 are linked and connected through a transmission component 14, so that the second screw rod 8 and the two first screw rods 7 rotate simultaneously. By arranging the transmission component 14 to link the second screw rod 8 and the two first screw rods 7, that is, the three can rotate simultaneously, when the two mounting frames 4 approach or move away from each other to change the width of the carton transmission channel 5, the positioning plate 2 also changes its position accordingly, enabling the carton to be smoothly pushed into the carton transmission channel 5. Only by rotating any one of the screw rods, the other two screw rods will rotate simultaneously, and the operation is very convenient.

[0027] As shown in the attached Figure 3 figure, the transmission component 14 includes a first driving sprocket 15, a second driving sprocket 16, a first driven sprocket 17, a second driven sprocket 18, a first chain 19 and a second chain 20. The first driving sprocket 15 and the second driving sprocket 16 are linked and installed on one first screw rod 7 close to the second screw rod 8. The first driven sprocket 17 is linked and installed on one first screw rod 7 far from the second screw rod 8. The second driven sprocket 18 is linked and installed on the second screw rod 8. The first chain 19 is meshed and connected to the first driving sprocket 15 and the first driven sprocket 17. The second chain 20 is meshed and connected to the second driving sprocket 16 and the second driven sprocket 18. In this embodiment, the number of teeth of each sprocket is the same, the three screw rods rotate synchronously, and each sprocket can be installed on the corresponding screw rod by key connection. The linkage of the second screw rod 8 and the two first screw rods 7 is realized through two sets of chain drive structures, with accurate transmission ratio and more reliable operation.

[0028] Among them, the first driving sprocket 15 and the second driving sprocket 16 are of an integrated double sprocket structure. This design not only has good synchronism but also is convenient for installation.

[0029] As shown in the Figure 3 attachment, bearing seats 21 are respectively and cooperatively connected to both ends of the first screw rod 7 and both ends of the second screw rod 8 corresponding to the frame 1. This design can not only achieve the positioning installation of the first screw rod 7 and the second screw rod 8, but also has small friction and is more labor-saving in operation.

[0030] As shown in the Figure 3 attachment, an operating handwheel 22 is linked and installed at the end of a first screw rod 7 close to the second screw rod 8. By rotating the operating handwheel 22, the entire adjusting mechanism 6 is driven to operate, and the operation is easy and labor-saving.

[0031] As shown in the Figure 3 attachment, two support rods 23 are provided at the bottom of the mounting frame 4. A connecting plate 24 is provided at the bottom end of the support rod 23. The connecting plate 24 is detachably connected to the first screw sleeve 11 or the second screw sleeve 12 through a plurality of screws. This design greatly facilitates the disassembly and assembly of the belt transmission mechanism 3, and is conducive to the pre-assembly production and subsequent disassembly and maintenance operations.

[0032] As shown in the Figure 2 attachment, a carton positioning frame 25 and an arc-shaped baffle 26 provided in front of the carton positioning frame 25 are further provided on the frame 1. The mutual baffle has two parts, one is an inclined plate for pushing and opening the carton, and the other is a guide plate for supporting the side of the carton. After the carton is positioned on the carton positioning frame 25, the carton is pulled away from the carton positioning frame 25, and the arc-shaped baffle 26 acts on one side of the carton to make the carton open; a carton pushing assembly 27 is further provided on the side of the arc-shaped baffle 26. The carton pushing assembly 27 includes a carton pushing cylinder 28 and a pushing plate 29 installed on the carton pushing cylinder 28. When the carton pushing cylinder 28 drives the pushing plate 29 to extend, the pushing plate 29 pushes the carton into the carton transmission channel 5. The carton can be sucked out by driving a pneumatic suction cup by a cylinder to realize the automatic opening of the carton, and then the carton is pushed into the carton transmission channel 5 by the carton pushing assembly 27. Its structure is simple and reliable, and the carton opening is very fast.

[0033] As shown in the Figure 1As shown, the frame 1 is provided with a height control mechanism 30 for adjusting the height of carton transmission at the position above the two groups of belt transmission mechanisms 3. The height control mechanism 30 includes a gantry 31, a pressure plate 32 and an adjusting screw 33. The two sides of the pressure plate 32 are fitted with the gantry 31. The adjusting screw 33 is installed on the gantry 31 along the vertical rotation. The upper end of the adjusting screw 33 is linked with an adjusting hand wheel 34. The pressure plate 32 is provided with a screw nut (or a screw hole) that matches the adjusting screw 33. The hand wheel is rotated to drive the adjusting screw 33 to rotate, and then the pressure plate 32 is driven up and down, and the carton located in the carton transmission channel 5 that is too high is pressed down, so that all cartons in the transmission process are kept at the same height, which is conducive to the sealing mechanism to perform the carton sealing process on the carton.

Claims

1. A carton unpacking machine, comprising a frame (1), a positioning plate (2) for pre-positioning the opened carton is provided on the frame (1), and two groups of belt transmission mechanisms (3) arranged in parallel for transporting the cartons. The belt transmission mechanism (3) includes a mounting frame (4) for mounting a motor and a belt. A carton transmission channel (5) is formed between the mounting frames (4) of the two groups of belt transmission mechanisms (3); characterized in that: It further includes an adjusting mechanism (6). The adjusting mechanism (6) includes two first screw rods (7) and one second screw rod (8) rotatably arranged on the frame (1). The first screw rods (7) and the second screw rod (8) are both perpendicular to the mounting frame (4). The first screw rod (7) is provided with a right-handed thread section (9) and a left-handed thread section (10). Two first screw sleeves (11) respectively cooperating with the right-handed thread sections (9) on the two first screw rods (7) are provided at the bottom of one mounting frame (4), and two second screw sleeves (12) respectively cooperating with the left-handed thread sections (10) on the two first screw rods (7) are provided at the bottom of the other mounting frame (4). The positioning plate (2) is slidably arranged on the frame (1) perpendicular to the carton transmission channel (5). A driven screw sleeve (13) cooperating with the second screw rod (8) is provided at the bottom of the positioning plate (2). The second screw rod (8) and the two first screw rods (7) are linked and connected through a transmission assembly (14) so that the second screw rod (8) and the two first screw rods (7) rotate simultaneously.

2. The carton unpacking machine according to claim 1, wherein: The transmission assembly (14) includes a first driving sprocket (15), a second driving sprocket (16), a first driven sprocket (17), a second driven sprocket (18), a first chain (19) and a second chain (20). The first driving sprocket (15) and the second driving sprocket (16) are linked and installed on one first screw rod (7) close to the second screw rod (8). The first driven sprocket (17) is linked and installed on one first screw rod (7) far from the second screw rod (8). The second driven sprocket (18) is linked and installed on the second screw rod (8). The first chain (19) is meshed and connected to the first driving sprocket (15) and the first driven sprocket (17). The second chain (20) is meshed and connected to the second driving sprocket (16) and the second driven sprocket (18).

3. The carton unpacking machine according to claim 2, characterized in that: The first driving sprocket (15) and the second driving sprocket (16) are of an integral double sprocket structure.

4. The carton opening machine according to claim 1, characterized in that: Bearing seats (21) are respectively and cooperatively connected to both ends of the first screw rods (7) and both ends of the second screw rod (8) corresponding to the frame (1).

5. A carton unpacking machine according to claim 1, characterized in that: An operating handwheel (22) is linked and installed at the end of one first screw rod (7) close to the second screw rod (8).

6. The carton unpacking machine according to claim 1, characterized in that: Two support rods (23) are provided at the bottom of the mounting frame (4). A connecting plate (24) is provided at the bottom end of the support rod (23). The connecting plate (24) is detachably connected to the first screw sleeve (11) or the second screw sleeve (12) through a plurality of screws.

7. A carton unpacking machine according to claim 1, characterized in that: The frame (1) is also provided with a carton positioning frame (25) and an arc-shaped baffle (26) arranged in front of the carton positioning frame (25). After the carton is positioned on the carton positioning frame (25), the carton is pulled away from the carton positioning frame (25), and the arc-shaped baffle (26) acts on one side of the carton to open the carton; the side of the arc-shaped baffle (26) is also provided with a carton pushing assembly (27), and the carton pushing assembly (27) includes a carton pushing cylinder (28) and a pushing plate (29) installed on the carton pushing cylinder (28). When the carton pushing cylinder (28) drives the pushing plate (29) to extend, the pushing plate (29) pushes the carton into the carton transmission channel (5).

8. A carton unpacking machine according to claim 1, characterized in that: The frame (1) is also provided with a height control mechanism (30) for adjusting the carton transmission height at a position above the two groups of belt transmission mechanisms (3). The height control mechanism (30) comprises a gantry (31), a pressure plate (32) and an adjusting screw (33). Both sides of the pressure plate (32) are in contact with the gantry (31). The adjusting screw (33) is mounted on the gantry (31) in a vertically rotatable manner. An adjusting hand wheel (34) is mounted on the upper end of the adjusting screw (33). A screw nut matching the adjusting screw (33) is provided on the pressure plate (32).

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