Paper wrapping machine press box apparatus

Abstract

The utility model relates to a kind of paper wrapping machine pressing box equipment, including two mainframes, sprocket set, conveying chain set and screw adjusting mechanism.Two mainframes are spaced apart along vertical direction, two sprocket sets are set on each mainframe, and two sprocket sets are spaced apart along the conveying direction of carton.Each mainframe is provided with conveying chain set, and the two ends of conveying chain set are engaged with corresponding sprocket, and two conveying chain sets are used to clamp carton.Each mainframe is provided with screw adjusting mechanism, screw adjusting mechanism is connected with bearing seat, and screw adjusting mechanism is used to drive two sprocket sets to be far away from each other, to tension conveying chain set. By setting screw adjusting mechanism, the spacing of two sprocket sets can be adjusted to tension conveying chain set. Connecting plate is used to fix between mounting shaft and mainframe, to avoid the bending of mounting shaft and the sagging of conveying chain set, to ensure the quality of carton packaging.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a paper packaging machine box pressing device. Background Technology

[0002] Paper packaging machines are essential equipment for packaging bottled water and bottled beverages. A paper packaging machine includes a folding station and a box-pressing station. At the folding station, several bottles are conveyed onto cardboard, which is then folded into boxes to hold the bottles. The boxes are then glued together after folding. The box-pressing station, located downstream of the folding station, uses a pressing device to compress and convey the boxes. During this process, the glue on the boxes cures.

[0003] In related technologies, carton pressing equipment includes two chain groups arranged vertically, each chain group consisting of multiple chains. The carton is clamped between the two chain groups, thus achieving carton clamping. During the rotation of the chain groups, the carton moves synchronously with them, thus achieving carton conveying. However, during operation, the chain groups may stretch or the sprockets may shift due to factors such as temperature, load, and vibration, leading to chain sagging and affecting the packaging quality of the carton. Utility Model Content

[0004] The purpose of this invention is to provide a paper packaging machine for pressing cartons, which facilitates the tension adjustment of the conveyor chain assembly and ensures the quality of carton packaging.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A paper packaging machine box pressing device is provided, comprising:

[0007] Two main frame frames are arranged vertically at intervals, forming a conveying channel for the passage of cartons between the two main frame frames;

[0008] Each main frame is provided with two sprocket assemblies, which are spaced apart along the conveying direction of the carton. Each sprocket assembly includes a mounting shaft, a sprocket, a connecting plate, and a bearing seat. Both ends of the mounting shaft are rotatably connected to the bearing seat, and the bearing seat is detachably connected to the main frame. The sprocket is located in the middle of the mounting shaft. One end of the connecting plate is located on the mounting shaft and is close to the sprocket. The other end of the connecting plate is detachably connected to the main frame.

[0009] Each of the main frames is equipped with a conveyor chain assembly, and both ends of the conveyor chain assembly are engaged with the corresponding sprockets. Two conveyor chain assemblies are used to clamp the carton.

[0010] A lead screw adjustment mechanism is provided on each of the main frames. The lead screw adjustment mechanism is connected to the bearing seat. The lead screw adjustment mechanism is used to drive the two sprocket groups on the same main frame to move away from each other, so as to tension the conveyor chain group.

[0011] Furthermore, the conveyor chain assembly includes multiple individual chains, and multiple sprockets are spaced apart on the mounting shaft. Each of the multiple sprockets meshes with one of the multiple individual chains, and a connecting plate is provided between each pair of adjacent sprockets.

[0012] Furthermore, the main frame includes a liftable tray, which is disposed inside the conveyor chain assembly and is used to support the conveyor chain assembly.

[0013] Furthermore, in one of the two sprocket sets on the main frame, the sprocket set includes a power assembly mounted on the bearing housing and connected to the sprocket drive to drive the sprocket to rotate.

[0014] Furthermore, each sprocket assembly is equipped with two lead screw adjustment mechanisms. Each lead screw adjustment mechanism includes a lead screw and a fixing block. The fixing block is mounted on the main frame. The lead screw is threadedly connected to the fixing block. One end of the lead screw abuts against the corresponding bearing seat, and the other end forms a screwing part for manual operation.

[0015] Furthermore, the bearing housing is connected and fixed to the main frame by fasteners, and the bearing housing is provided with a waist-shaped hole for the fasteners to pass through.

[0016] Furthermore, the two bearing seats in the same sprocket assembly are respectively installed at both ends of the main frame in the horizontal direction.

[0017] Furthermore, it also includes a lifting and adjusting mechanism, through which the two main frames are connected so that the distance between the two main frames is adjustable.

[0018] Furthermore, the lifting and adjusting mechanism includes a support column and a gear and rack transmission assembly. The support column is fixedly connected to one of the main frames and slidably connected to the other main frame. The support column and the main frame are connected through the gear and rack transmission assembly to drive the two main frames to move closer or further apart.

[0019] Furthermore, it also includes a gas spring, the two ends of which are respectively connected and fixed to the two main frame components.

[0020] The advantages of this utility model compared to the prior art are:

[0021] This invention relates to a carton pressing device for a paper packaging machine. By incorporating a screw adjustment mechanism, when the conveyor chain assembly sags, the screw adjustment mechanism drives the bearing seat to move, causing the two sprocket assemblies to move away from each other, thereby tensioning the conveyor chain assembly. Furthermore, by using a connecting plate to fix the mounting shaft to the main frame, the force on the sprockets is transferred to the main frame, preventing the mounting shaft from bending and causing the conveyor chain assembly to sag. This device helps maintain the conveyor chain assembly in a taut state, thus ensuring the packaging quality of the cartons. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram from a first-view perspective of the paper packaging machine's box pressing equipment according to an embodiment of this utility model.

[0024] Figure 2 This is a schematic diagram from a second perspective of the paper packaging machine's box pressing equipment according to an embodiment of the present utility model.

[0025] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0026] Figure 4 This is a schematic diagram from a third-person perspective of the paper packaging machine's box pressing equipment according to an embodiment of this utility model.

[0027] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0028] Figure 6 This is a schematic diagram of the sprocket assembly according to an embodiment of the present utility model.

[0029] In the picture:

[0030] 1. Main frame; 11. Upper frame; 111. First side beam; 112. First middle beam; 12. Lower frame; 121. Second side beam; 122. Second middle beam; 13. Pallet; 14. Support plate; 2. Lifting and adjusting mechanism; 21. Support column; 22. Chain drive assembly; 23. Gear and rack drive assembly; 24. Drive shaft; 3. Gas spring; 4. Conveyor chain assembly; 41. Upper chain assembly; 42. Lower chain assembly; 5. Sprocket assembly; 51. Mounting shaft; 52. Sprocket; 53. Connecting plate; 531. Connecting hole; 54. Bearing seat; 541. Waist-shaped hole; 55. Power assembly; 6. Screw adjusting mechanism; 61. Screw; 62. Fixing block; 7. Carton; 8. Conveying channel. Detailed Implementation

[0031] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 6 As shown, this utility model provides a paper packaging machine pressing device for pressing folded cartons 7 to allow the glue on the cartons 7 to cure. The paper packaging machine pressing device includes a main frame 1, a conveyor chain assembly 4, a sprocket assembly 5, and a screw adjustment mechanism 6. The main frame 1 provides overall support and installation space for all components. There are two main frames 1, spaced vertically apart, forming a conveying channel 8 for the cartons 7 to pass through. There are two conveyor chain assemblies 4, one on each main frame 1. The conveyor chain assemblies 4 are horizontally arranged so that the cartons 7 can be clamped between the two conveyor chain assemblies 4. As the conveyor chain assemblies 4 rotate, the cartons 7 move forward along with them. The sprocket assembly 5 is used to mount the conveyor chain assemblies 4 and to drive their rotation. Each main frame 1 has two sprocket assemblies 5, spaced apart along the conveying direction of the cartons 7. Figure 1 The direction indicated by the middle arrow is the conveying direction of the carton 7. The sprocket assembly 5 includes a mounting shaft 51, a sprocket 52, a connecting plate 53, and bearing seats 54. There are two bearing seats 54, spaced apart on the main frame 1, and they are detachably connected to the main frame 1, allowing for adjustment of their position. Both ends of the mounting shaft 51 are rotatably connected to the bearing seats 54 via bearings. The sprocket 52 is located in the middle of the mounting shaft 51 and meshes with the conveyor chain assembly 4, driving the conveyor chain assembly 4 to rotate. The connecting plate 53 connects the sprocket assembly 5 to the main frame 1. One end of the connecting plate 53 is fixedly connected to the mounting shaft 51, and the connecting plate 53 is positioned close to the sprocket 52. The other end of the connecting plate 53 is detachably connected to the main frame 1, meaning the position between the connecting plate 53 and the main frame 1 is adjustable. The lead screw adjustment mechanism 6 is used to adjust the position of the sprocket assembly 5, and each main frame 1 is equipped with a lead screw adjustment mechanism 6. The lead screw adjustment mechanism 6 is connected to the bearing seat 54. The lead screw adjustment mechanism 6 can drive the two sprocket assemblies 5 on the same main frame 1 to move away from each other, so as to tension the conveyor chain assembly 4.

[0033] Understandably, the conveyor chain assembly 4 is a ring-shaped structure resembling a racetrack. The length of the conveyor chain assembly 4 extends along the conveying direction of the carton 7, and two sprocket sets 5 are respectively installed at both ends of the conveyor chain assembly 4 along its length. The conveyor chain assembly 4 has an upper horizontal section and a lower horizontal section. Since the conveyor chain assembly 4 is in a rotating state, the upper and lower horizontal sections are not fixed areas on the conveyor chain assembly 4. The upper horizontal section is located above the line connecting the two sprocket sets 5, and the lower horizontal section is located below the line. To ensure the packaging quality of the carton 7, the conveyor chain assembly 4 needs to be kept taut, meaning the upper and lower horizontal sections should remain straight. The tension of the conveyor chain assembly 4 can be adjusted by adjusting the distance between the two sprocket sets 5. Specifically, when the conveyor chain assembly 4 sags, the screw adjustment mechanism 6 can be used to drive the bearing seat 54 to move along the conveying direction of the carton 7, causing the two sprocket assemblies 5 to move away from each other, thereby adjusting the tension of the conveyor chain assembly 4. After adjustment, the bearing seat 54 is re-fixed to the main frame 1. Furthermore, since the sprocket assembly 5 is located in the middle of the mounting shaft 51, the middle of the mounting shaft 51 is subjected to the tension of the conveyor chain assembly 4, which poses a risk of bending in the middle. By setting a connecting plate 53 in the middle of the mounting shaft 51 and mounting the connecting plate 53 on the main frame 1, the tension of the conveyor chain assembly 4 is transferred to the main frame 1, preventing the conveyor chain assembly 4 from sag due to bending of the mounting shaft 51.

[0034] Specifically, the two main frames 1 are an upper frame 11 located above and a lower frame 12 located below, forming a conveyor channel 8 between the upper frame 11 and the lower frame 12. The two conveyor chain groups 4 are an upper chain group 41 and a lower chain group 42, with the upper chain group 41 mounted on the upper frame 11 and the lower chain group 42 mounted on the lower frame 12. When pressing and conveying the carton 7, the lower horizontal section of the upper chain group 41 mounted on the upper frame 11 abuts against the top surface of the carton 7, and the upper horizontal section of the lower chain group 42 mounted on the lower frame 12 abuts against the bottom surface of the carton 7.

[0035] The upper frame 11 includes two first side beams 111 and a first middle beam 112. The two first side beams 111 are parallel and spaced apart in the horizontal direction. The first middle beam 112 is located between the two first side beams 111. The two first side beams 111 and the first middle beam 112 are connected as a whole by several connecting beams. The lower frame 12 includes two spaced second side beams 121 and a second middle beam 122 located between the two second side beams 121. The overall structure of the lower frame 12 is similar to that of the upper frame 11 and will not be described again here. In the upper frame 11, the end of the connecting plate 53 facing away from the mounting shaft 51 is connected to the first middle beam 112 by fasteners, which are existing screws or bolts. In the lower frame 12, the end of the connecting plate 53 facing away from the mounting shaft 51 is connected to the second middle beam 122 by fasteners. The connecting plate 53 is provided with connecting holes 531 for fasteners to pass through.

[0036] Specifically, refer to Figure 4 and Figure 5 As shown, the main frame 1 also includes a support plate 13 and a support plate 14. The support plate 13 is located inside the conveyor chain assembly 4 and is used to support the upper horizontal section of the conveyor chain assembly 4. In the upper frame 11, the support plate 13 is horizontally positioned below the upper horizontal section of the upper chain assembly 41, supporting the upper horizontal section to maintain its horizontal state. The support plate 13 is connected to the first middle beam 112 via the support plate 14. In practical applications, the distance between the support plate 13 and the first middle beam 112 can be adjusted according to the horizontal state of the conveyor chain assembly 4. Similarly, in the lower frame 12, the support plate 13 is horizontally positioned below the upper horizontal section of the lower chain assembly 42, supporting the upper horizontal section to maintain its horizontal state. The support plate 13 is connected to the second middle beam 122 via the support plate 14. In practical applications, the distance between the support plate 13 and the second middle beam 122 can be adjusted according to the horizontal state of the conveyor chain assembly 4.

[0037] Specifically, within the same main frame 1, tension adjustment can be achieved by driving one of the sprocket groups 5 using a lead screw adjustment mechanism 6. Each sprocket group 5 is equipped with two lead screw adjustment mechanisms 6, which are respectively connected to two bearing seats 54 to drive the two bearing seats 54 to move synchronously. The two bearing seats 54 are respectively installed at both ends of the main frame 1 in the horizontal direction. In the upper frame 11, the two bearing seats 54 are respectively installed on two first side beams 111; in the lower frame 12, the two bearing seats 54 are respectively installed on two second side beams 121. This structure positions the bearing seats 54 on the outer side of the main frame 1, facilitating operation of the bearing seats 54 during tension adjustment. The bearing seats 54 are connected and fixed to the first side beam 111 (or second side beam 121) of the main frame 1 using fasteners, such as existing screws or bolts. The bearing seats 54 are provided with oblong holes 541 for fasteners to pass through, facilitating adjustment of the bearing seat 54's position on the main frame 1. Correspondingly, the lead screw adjustment mechanism 6 is installed on the first side beam 111 (or the second side beam 121), and is installed close to the bearing seat 54. The lead screw adjustment mechanism 6 is prior art, and includes a lead screw 61 and a fixing block 62. The fixing block 62 is installed on the first side beam 111 (or the second side beam 121), and the lead screw 61 passes through the fixing block 62 and is threadedly connected to it. One end of the lead screw 61 abuts against the bearing seat 54, and the other end forms a screwing part for manual operation. During tension adjustment, a tool is used to clamp and rotate the screwing part, thereby moving the lead screw 61 along the conveying direction of the carton 7, driving the bearing seat 54 to move and increasing the distance between the two sprocket sets 5.

[0038] Specifically, the conveyor chain assembly 4 includes multiple individual chains, which are spaced apart along the axial direction of the mounting shaft 51. By using multiple individual chains, the width of the entire conveyor chain assembly 4 is increased, thereby increasing the contact area between the conveyor chain assembly 4 and the carton 7. Correspondingly, multiple sprockets 52 are spaced apart on the mounting shaft 51, and each sprocket 52 meshes with one of the individual chains. Multiple connecting plates 53 are provided, with one connecting plate 53 between two adjacent sprockets 52, to further improve the strength of the mounting shaft 51 and prevent bending deformation.

[0039] Specifically, in one of the two sprocket sets 5 on the main frame 1, a power assembly 55 is included. The power assembly 55 is mounted on a bearing housing 54 and is connected to a sprocket 52 to drive its rotation. The power assembly 55 includes a motor and a reducer. The motor is connected to the reducer, and the gears in the reducer are connected to gears mounted on a mounting shaft 51, enabling the power assembly 55 to drive the mounting shaft 51 to rotate, thereby driving the sprocket 52 to rotate. By mounting the power assembly 55 on the bearing housing 54, when adjusting the position of the sprocket set 5, the power assembly 55 moves synchronously with the bearing housing 54 without changing the connection between the power assembly 55 and the mounting shaft 51. Of course, in some embodiments, both sprocket sets 5 may have a power assembly 55, meaning both sprocket sets 5 have power output functionality.

[0040] Specifically, refer to Figure 2 and Figure 3 As shown, the carton pressing equipment of the paper packaging machine also includes a lifting and adjusting mechanism 2. The upper frame 11 and the lower frame 12 are connected by the lifting and adjusting mechanism 2, so that the distance between the upper frame 11 and the lower frame 12 is adjustable. By adjusting the distance between the upper frame 11 and the lower frame 12, the height of the conveying channel 8 can be changed, thereby adapting to different models of cartons 7. The lifting and adjusting mechanism 2 includes a support column 21, a chain drive assembly 22, a gear and rack drive assembly 23, and a drive shaft 24. The support column 21 is fixedly connected to one of the main frames 1 and slidably connected to the other main frame 1. The support column 21 is used to support the two main frames 1 and make the distance between the two main frames 1 adjustable. The gear and rack drive assembly 23 and the chain drive assembly 22 are driving components used to drive the two main frames 1 to move closer or further apart. There are multiple support columns 21, which are located on both sides of the main frame 1 in the horizontal direction, and at least two support columns 21 are spaced apart on each side, providing sufficient support for the entire carton pressing equipment of the paper packaging machine. The rack and pinion drive assembly 23 is prior art. It includes a rack and a drive gear meshing with the rack. The rack is mounted on a support column 21, and its length extends vertically. The drive gear is mounted on the main frame 1, which is slidably connected to the support column 21. In this embodiment, the support column 21 is fixedly connected to the lower frame 12 and slidably connected to the upper frame 11. A drive shaft 24 is mounted on the upper frame 11, and the drive gear is mounted on the drive shaft 24. The chain drive assembly 22 is prior art. It includes a motor and a chain driven by the motor. The chain is driven by the drive shaft 24, and power is transmitted to the drive gear through the chain drive assembly 22 to drive the upper frame 11 to move vertically.

[0041] Specifically, refer to Figure 5As shown, two drive shafts 24 are spaced apart on the upper frame 11, with both ends of the drive shafts 24 rotatably connected to two first side beams 111 respectively. Each first side beam 111 has two support columns 21, and each support column 21 corresponds to a gear and rack transmission assembly 23. The rack in the gear and rack transmission assembly 23 is mounted on the support column 21, and the drive gear in the gear and rack transmission assembly 23 is mounted on the drive shaft 24, meshing with the rack. Each first side beam 111 also has a chain transmission assembly 22, with both ends of the chain in the chain transmission assembly 22 mounted on the drive shaft 24 via sprockets. A motor is mounted on the first side beam 111, and the motor's output shaft meshes with the middle of the chain via a sprocket. One motor directly drives the two drive shafts 24 to rotate, thereby driving the two gear and rack transmission assemblies 23 to move synchronously. Of course, in some embodiments, the chain transmission assembly 22 can be omitted, and the motor can be directly connected to the drive gear to drive the corresponding gear and rack transmission assembly 23.

[0042] Specifically, the paper packaging machine's box-pressing device also includes gas springs 3, with both ends of the gas springs 3 connected and fixed to two main machine frames 1 respectively. Gas springs 3 are existing technology, and their specific structure and working principle will not be described in detail here. Multiple gas springs 3 are distributed at intervals around the main machine frames 1. Specifically, both ends of the gas springs 3 are connected and fixed to the first side beam 111 and the second side beam 121 respectively. By setting up the gas springs 3, they can provide auxiliary support for the upper frame 11, reduce the force on the gear and rack transmission assembly 23, and facilitate lifting and adjusting. In this embodiment, a gas spring 3 is provided near each support column 21.

[0043] In this embodiment, the working principle of the carton pressing device of the paper packaging machine is as follows: During tension adjustment, first loosen the fasteners between the bearing seat 54 and the first side beam 111 or the second side beam 121, and loosen the fasteners between the connecting plate 53 and the first middle beam 112 or the second middle beam 122. Then, turn the screw 61 to drive the bearing seat 54 to move towards the end of the main frame 1, and the two sprocket groups 5 on the main frame 1 move away from each other, so that the conveyor chain group 4 is tensioned. After the adjustment is completed, the fasteners are re-locked. During lifting adjustment, the chain drive assembly 22 is activated to drive the gear and rack drive assembly 23 to move, the upper frame 11 rises or falls, and thus adjusts the distance between the two main frames 1 to adapt to the height of the carton 7.

[0044] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A paper packaging machine box pressing device, characterized in that, include: Two main frame frames are arranged vertically at intervals, forming a conveying channel for the passage of cartons between the two main frame frames; Each main frame is provided with two sprocket assemblies, which are spaced apart along the conveying direction of the carton. Each sprocket assembly includes a mounting shaft, a sprocket, a connecting plate, and a bearing seat. Both ends of the mounting shaft are rotatably connected to the bearing seat, and the bearing seat is detachably connected to the main frame. The sprocket is located in the middle of the mounting shaft. One end of the connecting plate is located on the mounting shaft and is close to the sprocket. The other end of the connecting plate is detachably connected to the main frame. Each of the main frames is equipped with a conveyor chain assembly, and both ends of the conveyor chain assembly are engaged with the corresponding sprockets. Two conveyor chain assemblies are used to clamp the carton. A lead screw adjustment mechanism is provided on each of the main frames. The lead screw adjustment mechanism is connected to the bearing seat. The lead screw adjustment mechanism is used to drive the two sprocket groups on the same main frame to move away from each other, so as to tension the conveyor chain group.

2. The paper packaging machine box pressing equipment according to claim 1, characterized in that, The conveyor chain assembly includes multiple individual chains, and multiple sprockets are spaced apart on the mounting shaft. Each of the multiple sprockets meshes with one of the multiple individual chains, and a connecting plate is provided between each pair of adjacent sprockets.

3. The paper packaging machine box pressing equipment according to claim 2, characterized in that, The main frame includes a liftable tray, which is located inside the conveyor chain assembly and is used to support the conveyor chain assembly.

4. The paper packaging machine box pressing equipment according to claim 2, characterized in that, Of the two sprocket assemblies on the main frame, one of the sprocket assemblies includes a power assembly mounted on the bearing housing and connected to the sprocket drive to drive the sprocket to rotate.

5. The paper packaging machine box pressing equipment according to claim 1, characterized in that, Each sprocket assembly is equipped with two lead screw adjustment mechanisms. Each lead screw adjustment mechanism includes a lead screw and a fixing block. The fixing block is mounted on the main frame. The lead screw is threadedly connected to the fixing block. One end of the lead screw abuts against the corresponding bearing seat, and the other end forms a screwing part for manual operation.

6. The paper packaging machine box pressing equipment according to claim 5, characterized in that, The bearing housing is connected and fixed to the main frame by fasteners, and the bearing housing is provided with a waist-shaped hole for the fasteners to pass through.

7. The paper packaging machine box pressing equipment according to claim 6, characterized in that, The two bearing seats in the same sprocket assembly are respectively installed at both ends of the main frame in the horizontal direction.

8. The paper packaging machine box pressing equipment according to any one of claims 1 to 7, characterized in that, It also includes a lifting and adjusting mechanism, through which the two main frames are connected so that the distance between the two main frames is adjustable.

9. The paper packaging machine box pressing equipment according to claim 8, characterized in that, The lifting and adjusting mechanism includes a support column and a gear and rack transmission assembly. The support column is fixedly connected to one of the main frames and slidably connected to the other main frame. The support column and the main frame are connected through the gear and rack transmission assembly to drive the two main frames to move closer or further apart.

10. The paper packaging machine box pressing equipment according to claim 8, characterized in that, It also includes a gas spring, the two ends of which are respectively connected and fixed to the two main frame components.

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