A carton packaging machine

Abstract

The present invention discloses a carton packaging machine, which is provided with a carton sealing mechanism and a strapping mechanism for use in combination, and three groups of sensors are arranged on the carton sealing mechanism. The feeding sensor detects a feedback signal of a carton in place to automatically debug the carton sealing specifications of the carton sealing mechanism, the distance measuring sensor detects the arrival and departure of the head and tail of the carton, and cooperates with an encoder and a programmable controller to obtain the length specification of the carton, and the discharging sensor detects a feedback signal of a carton in place, and controls the start and stop of the strapping mechanism according to the length specification data obtained before, and automatically straps the carton at a required position, thereby reducing the downtime for debugging as a whole, realizing the function of automatic packaging, and improving the efficiency of production packaging.

Description

Technical Field

[0001] The invention relates to a box sealing mechanism, and more particularly to a carton packaging machine. Background Art

[0002] When packing cartons, the upper and lower openings are first sealed with tape, and then the tape is horizontally tied on the outside of the carton. The carton sealer is a device that seals the carton opening with tape to complete the packaging. The carton enters the carton sealer from one end, and the upper and lower surfaces are sealed with tape by the movements set above and below. In order to meet the sealing requirements of cartons of different specifications, the carton sealer is generally set with the lower movement fixed, and the two sides of the lower movement are set with side conveyors that can move relatively close to or away from each other, and the upper movement can move up and down. When in use, the side conveyor is adjusted to a suitable width, and the upper movement is adjusted to a suitable height to adapt to the width and height of the carton. This method has a relatively slow working efficiency. When processing carton packaging of different specifications, it needs to be repeatedly debugged, which affects the sealing efficiency. The strapping machine has a strapping part in the shape of a door frame. When the carton is placed in the position of the strapping part, the strapping part is started to strap the ring-shaped strapping on the carton and close it to complete the strapping action. At present, there is no carton sealing machine and strapping machine used together, and workers are required to transfer and transport in the middle, which reduces packaging efficiency. In addition, when strapping, the front and rear strapping belts are usually tied at the length of the carton, and the front and rear strapping positions are generally at the front and rear quarters of the length of the carton. If the length specifications of the carton can be detected at the carton sealing machine, it will be convenient for the subsequent strapping work. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a carton packaging machine, which can detect the length specifications of the carton through the signal feedback of the feed sensor to enable the sealing mechanism to automatically adjust the sealing specifications, and the signal feedback of the distance measuring sensor and the encoder to record the travel distance of the carton, and the signal feedback of the discharge sensor to enable the strapping mechanism to automatically move according to the length specifications of the carton to complete the strapping action, thereby improving the level of automation and improving the production packaging efficiency.

[0004] The present invention provides the following technical solution: a carton packaging machine, comprising a carton sealing mechanism and a strapping mechanism, wherein the discharging end of the carton sealing mechanism is connected to the feeding end of the strapping mechanism, the carton sealing mechanism comprises a frame, an upper core, a lower core and a pair of conveying mechanisms, the lower core is fixedly arranged on the frame, the upper core can be movably arranged on the frame up and down by a first adjusting mechanism, a pair of conveying mechanisms can be arranged on the frame and located on both sides of the lower core so as to be close to or away from each other by a second adjusting mechanism, and the upper core and the lower core correspond to each other in upper and lower positions,

[0005] It also includes a feed sensor and a distance sensor arranged at the feed end of the frame, an encoder arranged at the upper movement or the lower movement or the conveying mechanism, a discharge sensor arranged at the strapping mechanism or the discharge end of the sealing mechanism, and a programmable controller;

[0006] The feed sensor is used to sense the arrival of the material at the feed end and feed back a signal to the programmable controller, which instructs the second adjustment mechanism to drive the conveying mechanisms on both sides to approach to clamp the material, and the first adjustment mechanism to drive the upper movement down to contact the material;

[0007] The distance sensor is used to sense the arrival and departure of the material at the feeding end and feed back the signal to the programmable controller. The encoder is used to record the stroke of the upper movement or the lower movement or the conveying mechanism during operation and feed back the stroke to the programmable controller. The programmable controller is used to receive the signal of the distance sensor to determine the stroke recorded by the encoder during the period when the distance sensor senses the arrival and departure of the material, thereby determining the length specification of the material.

[0008] The strapping mechanism includes a placement table and a strapping part arranged on the placement table; the conveying mechanism extends to the placement table of the strapping mechanism to transport materials to the strapping part, and the discharge sensor is used to sense the arrival of materials at the discharge end and feedback the signal to the programmable controller. The programmable controller delays the start and stop of the strapping part according to the length specification of the material, and performs strapping action on the material that arrives at the strapping part when starting.

[0009] As an improvement, the programmable controller controls the strapping section to start and stop twice with a delay, and during the two starts, strapping actions are performed on the materials arriving at the strapping section at two positions, front and back.

[0010] As an improvement, the encoder is arranged at the transmission mechanism, the transmission mechanism includes a conveyor belt, and the encoder and the conveyor belt are linked to perform stroke detection.

[0011] As an improvement, the frame is provided with a plurality of rollers arranged along the conveying direction, and the plurality of rollers are connected to the placing table front and back; the placing table is provided with a plurality of through holes, and rollers for supporting the material for conveying are provided at the through holes.

[0012] As an improvement, the first adjusting mechanism and the second adjusting mechanism are respectively provided with a first locking mechanism and a second locking mechanism, the first locking mechanism is used to lock the first adjusting mechanism to locate the height position of the upper movement, and the second locking mechanism is used to lock the second adjusting mechanism to locate the horizontal position of the transmission mechanism.

[0013] As an improvement, the upper movement is arranged on an upper bracket, and the upper bracket is arranged on the frame so as to be movable up and down through a hole-axis structure. The first locking mechanism includes a first cylinder and a first resistance member. The first cylinder is arranged on the upper bracket, and the first resistance member is arranged on the first cylinder and is driven by the first cylinder to press against the frame or / and the first adjustment mechanism for structural mechanical locking.

[0014] As an improvement, the first adjusting mechanism is a cylinder, one end of which is connected to the frame, and the other end is connected to the upper bracket by a cylinder shaft.

[0015] As an improvement, the second locking mechanism includes a second cylinder and a second abutment, the second cylinder is arranged on the frame, the second abutment is arranged on the second cylinder and driven by the second cylinder to abut against the second adjustment mechanism for structural mechanical locking.

[0016] As an improvement, the second adjustment mechanism includes a driving mechanism arranged at the head and tail ends of the transmission mechanism for driving a pair of transmission mechanisms to move closer or farther away, and a linkage mechanism arranged between the two groups of driving mechanisms for driving the two groups of synchronous linkage. The linkage mechanism includes a linkage shaft, a circle of mating gear rings is arranged on the surface of the linkage shaft, the second resistance piece has a tooth groove that matches and meshes with the mating gear ring, and the second resistance piece is arranged on the side of the linkage mechanism, and is locked by the mating gear ring and the tooth groove.

[0017] As an improvement, the driving mechanism includes a pair of sliding blocks respectively connected to the transmission mechanism, a chain connected to the pair of sliding blocks and wound into a loop and moving synchronously with the sliding blocks, and sprockets respectively arranged on the linkage shaft and the frame for winding around both sides of the chain. The sliding blocks are slidably mounted on the sliding rods on the frame. A driving cylinder is arranged in one of the two groups of driving mechanisms, and the cylinder shaft of the driving cylinder is connected to the sliding blocks in one group of driving mechanisms to control the pair of sliding blocks to slide closer or farther away; the pair of sliding blocks are respectively connected to the upper and lower sections of the chain wound into a loop, and when the pair of sliding blocks approach or move away, the driving chain moves clockwise or counterclockwise and drives the linkage shaft to move synchronously.

[0018] The beneficial effects of the present invention are as follows: a feed sensor is arranged on the sealing mechanism, and when the material, i.e., the carton, arrives at the feed end, the size specifications of the conveying mechanisms on both sides and the upper machine core can be automatically adjusted to meet the efficiency when processing cartons of different specifications at the same time, improve the automatic debugging function of the sealing mechanism, meet the rapid sealing of cartons of different specifications, reduce the downtime for debugging, and improve the efficiency of production packaging.

[0019] By connecting and using the sealing mechanism and the strapping mechanism, the strapping process can be completed directly after the sealing tape is completed, and the cartons do not need to be transported, which frees up labor and improves the efficiency of production and packaging; after setting the distance measuring sensor, it senses when the front end of the material, i.e., the carton, arrives and the rear end leaves, so that the signal can be fed back to the programmable controller. In the process of the conveying mechanism driving the carton to complete the front end arrival and the rear end departure, the encoder runs how much stroke, and the feedback to the programmable controller can determine the length specification of the carton; the set discharging sensor can use the length specification data to be fed back to the strapping mechanism by the programmable controller after the carton arrives at the strapping mechanism, and the strapping mechanism can be accurately started and stopped, so that the carton is strapped when it stays at the required position, thereby realizing the function of automatic packaging, and there is no need to manually start and adjust the strapping position like the original separate strapping machine, which further improves the efficiency of production and packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the carton packaging machine of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the carton packaging machine of the present invention observed from the bottom perspective.

[0022] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0023] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0024] Figure 5 for Figure 2 Enlarged view of point C in the middle.

[0025] Figure 6 It is a schematic cross-sectional structure diagram of the second locking mechanism of the carton packaging machine of the present invention. DETAILED DESCRIPTION

[0026] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 , 2, 3, 4, 5, and 6 are specific embodiments of the carton packaging machine of the present invention. This embodiment includes a sealing mechanism 0 and a strapping mechanism 8, the discharging end of the sealing mechanism 0 is connected to the feeding end of the strapping mechanism 8, the sealing mechanism 0 includes a frame 1, an upper movement 2, a lower movement 3 and a pair of conveying mechanisms 4, the lower movement 3 is fixedly arranged on the frame 1, the upper movement 2 is movable up and down on the frame 1 through a first adjustment mechanism 5, a pair of conveying mechanisms 4 can be arranged on the frame 1 and located on both sides of the lower movement 3 so as to be close to or away from each other through a second adjustment mechanism 6, the upper movement 2 and the lower movement 3 correspond to each other in the upper and lower positions, and also includes a feed sensor 7 and a distance sensor 01 arranged at the feeding end of the frame 1, an encoder 02 arranged at the upper movement 2 or the lower movement 3 or at the conveying mechanism 4, a discharging sensor 9 arranged at the strapping mechanism 8 or at the discharging end of the sealing mechanism 0, and a programmable controller 03; the feed sensor 7 is used to sense the arrival of the material at the feeding end and feed back a signal to the programmable controller 03, and the programmable controller 03 enables the second adjustment mechanism 6 to drive the conveying mechanisms 4 on both sides to approach each other to clamp the material, and to make the first adjustment mechanism 5 drive the upper movement 2 to descend to contact the material; the distance sensor 01 is used to sense the arrival and departure of the material at the feeding end and feedback the signal to the programmable controller 03, the encoder 02 is used to record the stroke of the upper movement 2 or the lower movement 3 or the conveying mechanism 4 during operation and feedback to the programmable controller 03, the programmable controller 03 is used to receive the signal of the distance sensor 01 to determine the stroke recorded by the encoder 02 during the period when the distance sensor 01 senses the arrival and departure of the material, thereby determining the length specification of the material; the bundling mechanism 8 includes a placement table 81 and a bundling part 82 arranged on the placement table 81; the conveying mechanism 4 extends to the placement table 81 of the bundling mechanism 8 to transport the material to the bundling part 82, the discharge sensor 9 is used to sense the arrival of the material at the discharge end and feedback the signal to the programmable controller 03, and the programmable controller 03 delays the start and stop of the bundling part 82 according to the length specification of the material, and performs a bundling action on the material that arrives at the bundling part 82 when started.

[0028] When the present invention is in use, rollers 11 are arranged on the frame 1 around the lower core 3 and at the feed end and the discharge end, which is conducive to the movement of the carton. The conveying mechanism 4 adopts a conveyor belt 41 arranged on the side, and the two sides can be driven by independent motors at the same speed to improve the driving force of the conveying mechanism 4 on the carton, so that the upper core 2 and the lower core 3 can effectively complete the sealing of the tape, and the carton can be smoothly transported from the entrance to the exit; the first adjustment mechanism 5 and the second adjustment mechanism 6 can both use cylinders to drive the upper core 2 and the conveying mechanism 4. After the material, i.e., the carton, is sent to the feed end by manual or pushing mechanism and is sensed by the feed sensor 7, the feed sensor 7 can be preferably a photoelectric sensor, and its feedback signal is given to the programmable controller 03, and the programmable controller 03 starts the second adjustment mechanism 6 to make the conveying mechanisms 4 on both sides reach the width position matching the carton for clamping, and the second adjustment mechanism 6 can be stopped when it reaches; synchronously or afterwards, the programmable controller 03 starts the first adjustment mechanism 5 to make the upper core 2 drop to contact the carton, and the first adjustment mechanism 5 can be stopped when it reaches. Relying on the setting of the above structure, automatic position debugging can be completed. When processing cartons of the same specification, the debugged position can be locked. When processing cartons of different specifications, the mechanism can be reset and the above steps can be repeated to debug and seal the carton.

[0029] After the material, i.e., the carton, is transported by the conveying mechanism 4 and sensed by the distance sensor 01, the distance sensor 01 can preferably be a photoelectric sensor, which feeds back a signal to the programmable controller 03. When the carton driven by the conveying mechanisms 4 on both sides continues to move forward, the upper movement 2 and the lower movement 3 complete the tape sealing of the upper and lower surfaces, and the encoder 02 records the stroke. Specifically, when the encoder 02 is arranged at the conveying mechanism 4, the encoder 02 is linked with the transmission structure such as the conveyor belt 41 to perform stroke detection; when the encoder 02 is arranged at the upper movement 2 or the lower movement 3, the encoder 02 is linked with the transmission structure such as the tape wheel on the upper movement 2 or the lower movement 3 to perform stroke detection; when the distance sensor 01 senses that the rear end of the carton has left, it feeds back a signal to the programmable controller 03, and the stroke recorded by the encoder 02 between the two signals is fed back to the programmable controller 03, and the programmable controller 03 can obtain the length specification of the carton.

[0030] A strapping mechanism 8 is provided after the carton sealing mechanism 0, and the strapping mechanism 8 can be realized by the existing technology; in terms of structural improvement, the placement table 81 and the roller 11 are set to the same height for extension, and the conveying mechanism 4 is extended to the placement table 81 of the strapping mechanism 8 and preferably extends to the strapping part 82; the cartons can be directly transported to the strapping part 82 for strapping, and the staff does not need to perform additional work of transferring the cartons, thereby improving the efficiency of production packaging. After the discharging sensor 9 senses the arrival of the carton, the discharging sensor 9 can preferably be a photoelectric sensor, which feeds back a signal to the programmable controller 3. The carton length specification data obtained by the programmable controller 3 at the sealing mechanism 0 is fed back to the strapping part 82 for start and stop, thereby completing the work of the strapping tape; specifically, when the carton continues to travel a certain distance so that it reaches the strapping part 82 and is located at the position to be strapped (such as the middle position of the carton, or the front and back position of the carton), the conveying mechanism 4 is stopped, the strapping part 82 is started to complete the strapping, and then the conveying mechanism 4 is started to continue conveying; the above method improves the level of automation, and there is no need for staff to operate the strapping tape. In addition, the strapping tape can be accurately applied at the required position according to the specific length of the carton, thereby reducing downtime and further improving the efficiency of production and packaging.

[0031] As an improved specific implementation method, the programmable controller 3 controls the strapping part 82 to start and stop twice with a delay, and performs strapping operations at two positions, front and rear, on the materials arriving at the strapping part 82 during the two starts.

[0032] During the specific packaging implementation, one or two straps are usually tied in the length direction of the carton. Because of its long length, tying two straps is a common choice. The set programmable controller 3 can determine the two strapping positions in advance according to the length information of the carton (for example, the programmable controller 3 can be set to strap at the front and back quarters according to the length specifications of the carton). After sensing the arrival of the carton, the carton continues to move to the strapping position (for example, the front quarter) to stop the conveying mechanism 4, start the strapping unit 82 to complete the strapping; the start and stop steps are repeated once after reaching the next strapping position (for example, the back quarter). In this way, the strapping action at the front and back positions of the carton is well realized by relying on automation, without the need for staff to operate the strapping, reducing downtime and further improving the efficiency of production packaging.

[0033] As an improved specific implementation method, the encoder 02 is arranged at the conveying mechanism 4, and the conveying mechanism 4 includes a conveyor belt 41. The encoder 02 and the conveyor belt 41 are linked to perform stroke detection.

[0034] like Figure 1As shown, the conveyor belt 41 of the transmission mechanism 4 is a structure that is tightly matched with the carton for transmission. The encoder 02 is preferably arranged at the transmission mechanism 4, which has better stability and is structurally convenient for layout. Compared with the upper movement 2 and the lower movement 3 where the tape needs to be replaced, the layout cost is relatively low and it is easy to maintain.

[0035] As an improved specific implementation manner, the discharge sensor 9 is arranged at the output end of the conveying mechanism 4 , and the output end of the conveying mechanism 4 extends to the placement table 81 of the strapping mechanism 8 and is arranged close to the strapping part 82 .

[0036] like Figure 1 , 2 As shown, the conveying mechanism 4 is a structure that moves horizontally through the second adjusting mechanism 06. When clamping the carton, it maintains a close and constant distance from the carton; a discharge sensor 9 is arranged on it to ensure that the carton is accurately sensed when it is delivered to the right place.

[0037] As an improved specific implementation manner, a plurality of through holes are arranged on the placement table 81, and rollers 83 for supporting the material for conveying are arranged at the through holes.

[0038] like Figure 1 As shown, through the transportation of the conveying mechanism 4, the carton can move well at the strapping mechanism 8, and the further arranged roller 83 is similar to the roller 11. While supporting the carton, it can rely on its rolling to reduce the friction of the carton, making the transportation of the carton easier and more stable.

[0039] As an improved specific implementation manner, the first adjusting mechanism 5 and the second adjusting mechanism 6 are respectively provided with a first locking mechanism 51 and a second locking mechanism 61, the first locking mechanism 51 is used to lock the first adjusting mechanism 5 so as to locate the height position of the upper movement 2, and the second locking mechanism 61 is used to lock the second adjusting mechanism 6 so as to locate the horizontal position of the conveying mechanism 4.

[0040] The first locking mechanism 51 and the second locking mechanism 61 are further provided to respectively lock the movement of the first adjusting mechanism 5 and the second adjusting mechanism 6, thereby mechanically completing the limitation of the structure, having high stability and being less prone to errors, and can effectively meet the use needs of the carton sealing machine when performing packaging operations of cartons of the same specification.

[0041] As an improved specific implementation method, the upper movement 2 is arranged on an upper bracket 21, and the upper bracket 21 is movably arranged on the frame 1 through a hole-axis structure. The first locking mechanism 51 includes a first cylinder 511 and a first resistance member 512. The first cylinder 511 is arranged on the upper bracket 21, and the first resistance member 512 is arranged on the first cylinder 511 and is driven by the first cylinder 511 to resist the frame 1 or / and the first adjustment mechanism 5 for structural mechanical locking.

[0042] like Figure 1 , 3 As shown, the upper movement 2 is driven by the first adjustment mechanism 5 on both sides to move, so the first locking mechanism 51 can be set on both sides to achieve stable locking and limiting. Specifically, the first cylinder 511 is set on the upper bracket 21. When the upper movement 2 needs to stay at a height position, the first cylinder 511 drives the first contact member 512 to contact the frame 1 or / and the first adjustment mechanism 5. The specific contact position of the first contact member 512 can be flexibly selected according to different structures to meet the locking function. As shown in the figure, it contacts the frame 1; the first contact member 512 firmly holds the upper bracket 21 on the frame 1, realizing the function of mechanical locking, and its stability is relatively high, which can meet the function of staying at different positions. The first cylinder 511 can be unlocked after being retracted, and the structure is simple.

[0043] As an improved specific implementation, the first adjustment mechanism 5 is a cylinder, one end of which is connected to the frame 1, and the other end is connected to the upper bracket 21 through a cylinder shaft.

[0044] like Figure 1 , 2 As shown, the cylinder can be connected to the frame 1 at one end by a hinged manner, and the other end is connected to the upper bracket 21 by the cylinder shaft, so as to realize the lifting of the upper bracket 21 during operation.

[0045] As an improved specific implementation, the second locking mechanism 61 includes a second cylinder 611 and a second abutment 612, the second cylinder 611 is arranged on the frame 1, the second abutment 612 is arranged on the second cylinder 611 and driven by the second cylinder 611 to abut against the second adjustment mechanism 6 for structural mechanical locking. The second adjustment mechanism 6 includes a driving mechanism 60 arranged at both ends of the conveying mechanism 4 for driving a pair of conveying mechanisms 4 to move closer or farther, and a linkage mechanism 62 arranged between the two sets of driving mechanisms 60 for driving two sets of synchronous linkage, the linkage mechanism 62 includes a linkage shaft 621, the surface of the linkage shaft 621 is provided with a circle of matching tooth ring 622, the second abutment 612 has a tooth groove 6121 that matches and meshes with the matching tooth ring 622, and the second abutment 612 is arranged on the side of the linkage mechanism 62, and the matching tooth ring 622 and the tooth groove 6121 are matched and locked.

[0046] like Figure 2 , 4As shown in Figure 5, the second cylinder 611 is specifically arranged on the frame 1. When the conveying mechanism 4 needs to stay at a width position, the second cylinder 611 drives the second abutment 612 to abut against the second adjusting mechanism 6, so that the second abutment 612 firmly locks the second adjusting mechanism 6 in a moving position, realizing the function of mechanical locking for the second adjusting mechanism 6, which has high stability and can meet the function of staying at different positions; the second cylinder 611 can be unlocked after being retracted. The specific second adjusting mechanism 6 has a driving mechanism 60 and a linkage mechanism 62. The linkage shaft 621 of the linkage mechanism 62 is selected for locking, and the front and rear groups of driving mechanisms 60 can be locked at one structural position. The structure of the setting is simple; the locking structure specifically adopts a matching tooth ring 622 set on the linkage shaft 621, and the second abutment 612 adopts a tooth groove 6121 structure. When the two abut, the linkage shaft 621 can be firmly locked, so that the linkage shaft 621 cannot rotate. It is a very stable locking structure, which ensures the locking effect.

[0047] As an improved specific implementation method, the second resistance member 612 includes a mounting plate 6122 and a resistance block 6123, the mounting plate 6122 is hinged on the frame 1, the resistance block 6123 is installed on the mounting plate 6122 and is opposite to the linkage shaft 621, and the tooth groove 6121 is arranged on the resistance block 6123; the second cylinder 611 is installed on the mounting plate 6122, and the cylinder shaft of the second cylinder 611 is connected to the frame 1. When working, the second cylinder 611 drives the mounting plate 6122 to swing and makes the resistance block 6123 approach or move away from the linkage shaft 621.

[0048] like Figure 5 , 6 As shown, the mounting plate 6122 and the second cylinder 611 are located as a whole on the inner side of the frame 1, and the swing of the mounting plate 6122 on the frame 1 enables the interference block 6123 to approach or move away from the linkage shaft 621, and the space occupied by its activities is small, which is beneficial to the structural arrangement; the interference block 6123 is installed on the inner side of the mounting plate 6122, and a tooth groove 6121 is processed thereon to correspond to the matching tooth ring 622 of the linkage shaft 621; the swinging method makes the tooth groove 6121 snap into the matching tooth ring 622 more smoothly, which is beneficial for the tooth groove 6121 to snap into the matching tooth ring 622 smoothly along the tooth shape of the circumferential surface, thereby reducing the wear on the structure; as shown in the figure, when the cylinder shaft is retracted, the second cylinder 611 makes the tooth groove 6121 snap into the matching tooth ring 622, which occupies less space, and the structure is more stable when the cylinder shaft is retracted, thereby ensuring the locking effect.

[0049] As an improved specific implementation, the driving mechanism 60 includes a pair of sliding blocks 601 respectively connected to the transmission mechanism 4, a chain 602 connected to the pair of sliding blocks 601 and wound into a ring to move synchronously with the sliding blocks 601, and sprockets 603 respectively arranged on the linkage shaft 621 and the frame 1 for winding around both sides of the chain 602. The sliding blocks 601 are slidably mounted on the sliding rod 10 on the frame 1. A driving cylinder 63 is set in one of the two groups of driving mechanisms 60. The cylinder shaft of the driving cylinder 63 is connected to the sliding blocks 601 in one group of driving mechanisms 60 to control the pair of sliding blocks 601 to slide closer or farther away; the pair of sliding blocks 601 are respectively connected to the upper and lower sections of the chain 602 wound into a ring. When the pair of sliding blocks 601 approach or move away, the driving chain 602 moves clockwise or counterclockwise and drives the linkage shaft 621 to move synchronously.

[0050] like Figure 2 , 4 As shown in Figure 5, when in use, the maximum position of the cylinder shaft of the driving cylinder 63 is the maximum position of the separation of a pair of sliding blocks 611, and the corresponding conveying mechanism 4 is also separated to the maximum position, which is the maximum width of the two groups of conveying mechanisms 4; when the cylinder shaft of the driving cylinder 63 is retracted, the pair of sliding blocks 611 are brought closer together, so that the two groups of conveying mechanisms 4 are brought closer together, and the two groups of conveying mechanisms 4 stop when clamping the carton. The linkage shaft 621 drives the driving mechanisms 60 on both sides to perform synchronous actions, realizes the stability and consistency of the structural activities, and realizes that one group of driving cylinders 63 can drive the activities of two groups of driving mechanisms 60. Figure 4 For example, the right sliding block 611 is connected to the upper chain 612, and the left sliding block 611 is connected to the lower chain 612. When the sprocket 613 drives the chain 612 to rotate counterclockwise, the two groups of sliding blocks 611 are close to each other, and when rotating clockwise, the two groups of sliding blocks 611 are far away from each other.

[0051] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A carton packaging machine, characterized in that: The invention comprises a box sealing mechanism (0) and a strapping mechanism (8), wherein the discharge end of the box sealing mechanism (0) is connected to the feed end of the strapping mechanism (8), the box sealing mechanism (0) comprises a frame (1), an upper movement (2), a lower movement (3) and a pair of conveying mechanisms (4), the lower movement (3) being fixedly arranged on the frame (1), the upper movement (2) being movable up and down on the frame (1) through a first adjustment mechanism (5), the pair of conveying mechanisms (4) being arranged on the frame (1) and being movable close to or away from each other through a second adjustment mechanism (6) and being located on both sides of the lower movement (3), the upper movement (2) and the lower movement (3) being arranged in corresponding upper and lower positions, It also includes a feed sensor (7) and a distance sensor (01) arranged at the feed end of the frame (1), an encoder (02) arranged at the upper movement (2) or the lower movement (3) or at the conveying mechanism (4), a discharge sensor (9) arranged at the strapping mechanism (8) or at the discharge end of the box sealing mechanism (0), and a programmable controller (03); The feed sensor (7) is used to sense the arrival of the material at the feed end and feed back a signal to the programmable controller (03). The programmable controller (03) controls the second adjustment mechanism (6) to drive the conveying mechanisms (4) on both sides to approach each other to clamp the material, and controls the first adjustment mechanism (5) to drive the upper movement (2) to descend to contact the material. The distance sensor (01) is used to sense the arrival and departure of materials at the feeding end and to feed back signals to the programmable controller (03); the encoder (02) is used to record the travel of the upper movement (2) or the lower movement (3) or the conveying mechanism (4) during operation and to feed back signals to the programmable controller (03); the programmable controller (03) is used to receive the signal of the distance sensor (01) to determine the travel recorded by the encoder (02) during the period when the distance sensor (01) senses the arrival and departure of materials, thereby determining the length specification of the materials; The bundling mechanism (8) comprises a placement table (81) and a bundling portion (82) arranged on the placement table (81); the conveying mechanism (4) extends to the placement table (81) of the bundling mechanism (8) and is used to convey materials to the bundling portion (82); the discharge sensor (9) is used to sense the arrival of materials at the discharge end and to feed back a signal to the programmable controller (03); the programmable controller (03) controls the bundling portion (82) to start and stop with a delay according to the length specification of the materials, and performs a bundling action on the materials arriving at the bundling portion (82) when starting; The first adjusting mechanism (5) and the second adjusting mechanism (6) are respectively provided with a first locking mechanism (51) and a second locking mechanism (61), wherein the first locking mechanism (51) is used to lock the first adjusting mechanism (5) so as to locate the height position of the upper movement (2), and the second locking mechanism (61) is used to lock the second adjusting mechanism (6) so as to locate the horizontal position of the transmission mechanism (4); The upper movement (2) is arranged on an upper bracket (21), and the upper bracket (21) is arranged on the frame (1) so as to be movable up and down through a hole-shaft structure. The first locking mechanism (51) comprises a first cylinder (511) and a first resisting member (512). The first cylinder (511) is arranged on the upper bracket (21), and the first resisting member (512) is arranged on the first cylinder (511) and is driven by the first cylinder (511) to resist the frame (1) or / and the first adjusting mechanism (5) to perform structural mechanical locking. The second locking mechanism (61) comprises a second cylinder (611) and a second resisting member (612); the second cylinder (611) is arranged on the frame (1); the second resisting member (612) is arranged on the second cylinder (611) and is driven by the second cylinder (611) to resist against the second adjustment mechanism (6) to perform structural mechanical locking.

2. A carton packaging machine according to claim 1, characterized in that: The programmable controller (03) controls the strapping section (82) to start and stop twice with a delay, and during the two starts, strapping operations are performed on the materials arriving at the strapping section (82) at two positions, front and rear.

3. A carton packaging machine according to claim 1, characterized in that: The encoder (02) is arranged at a conveying mechanism (4), the conveying mechanism (4) comprises a conveyor belt (41), and the encoder (02) and the conveyor belt (41) are linked to perform travel detection.

4. A carton packaging machine according to claim 1, characterized in that: The frame (1) is provided with a plurality of rollers (11) arranged along the conveying direction, and the plurality of rollers (11) are connected to the placement table (81) front and rear; the placement table (81) is provided with a plurality of through holes, and rollers (83) for supporting materials for conveying are provided at the through holes.

5. The carton packaging machine according to claim 1, characterized in that: The first adjustment mechanism (5) is a cylinder, one end of which is connected to the frame (1) and the other end of which is connected to the upper bracket (21) via a cylinder shaft.

6. A carton packaging machine according to claim 1, characterized in that: The second adjustment mechanism (6) comprises a driving mechanism (60) arranged at both ends of the transmission mechanism (4) for driving a pair of transmission mechanisms (4) to move closer or farther away, and a linkage mechanism (62) arranged between the two sets of driving mechanisms (60) for driving the two sets of synchronous linkage, the linkage mechanism (62) comprising a linkage shaft (621), the surface of the linkage shaft (621) being provided with a circle of matching toothed rings (622), the second abutment member (612) having tooth grooves (6121) matching and meshing with the matching toothed rings (622), the second abutment member (612) being arranged on the side of the linkage mechanism (62), and being locked by the matching toothed rings (622) and the tooth grooves (6121).

7. A carton packaging machine according to claim 6, characterized in that: The driving mechanism (60) comprises a pair of sliding blocks (601) respectively connected to the transmission mechanism (4), a chain (602) connected to the pair of sliding blocks (601) and wound in a loop to move synchronously with the sliding blocks (601), and sprockets (603) respectively arranged on the linkage shaft (621) and the frame (1) for winding around both sides of the chain (602), the sliding blocks (601) being slidably sleeved on the sliding rods (10) on the frame (1), and the two sets of driving mechanisms (60 ) is provided at one of the groups, and the cylinder shaft of the driving cylinder (63) is connected to a sliding block (601) in a driving mechanism (60) to control a pair of sliding blocks (601) to slide closer or farther away; the pair of sliding blocks (601) are respectively connected to the upper and lower sections of a chain (602) wound in a loop, and when the pair of sliding blocks (601) are moved closer or farther away, the driving chain (602) moves clockwise or counterclockwise and drives the linkage shaft (621) to move synchronously.

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