Packaging box production creasing device and batch creasing method thereof

Abstract

The invention relates to the field of packaging box production equipment, and discloses a packaging box production creasing device which comprises a base, a PLC control system is installed in the base, a plurality of air cylinders are fixedly connected to the top of the base, a machining table is fixedly connected to the close sides of the air cylinders, pressing plates are fixedly connected to the output ends of the air cylinders, and the pressing plates are fixedly connected to the output ends of the air cylinders. The right side of the bottom of the pressing plate is fixedly connected with a half ruler plate, the bottom of the pressing plate is connected with an upper mold through a plurality of bolts, a transmission assembly is arranged on the inner wall of the machining table, the top of the machining table is slidably connected with a push block, and a range groove is formed in the right side of the bottom of the pressing plate and used for providing a push block operation space. After indentation operation is completed through the pressing plate, through linkage with the ejection assembly, the ejection rod moves upwards to eject out a finished product, manual intervention is avoided, manual operation is reduced, and continuity, safety and production efficiency of equipment operation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging box production equipment, and in particular to a packaging box production creasing device and a batch creasing method thereof. Background Art

[0002] Packaging boxes are generally used to package objects of various sizes, and their materials generally include paper, plastic, etc.; usually the pattern of the packaging box is printed on the surface of the board, and the folded part of the packaging box is pressed by a creasing machine to form creases, and then the excess part of the packaging box board is cut off by cutting, and then assembled to form a packaging box.

[0003] Traditional creasing machines are generally composed of a workbench, a pressing plate, a mold, a transmission mechanism and a power system. They mainly rely on mechanical power (such as pneumatic devices, hydraulic devices or motor drives) to realize the up and down movement of the pressing plate to perform creasing on the material.

[0004] In the traditional production process, workers need to manually transport the raw materials to the workbench for positioning. After the operation is completed, they need to take out the finished products and clean up the broken materials in the processing area. This mode not only increases the operation time and affects the production efficiency, but also manual operation is prone to errors, resulting in inaccurate positioning, unstable indentation quality, and affecting the qualified rate of finished products.

[0005] Secondly, the speed of manual feeding and positioning is limited, which is difficult to match the mechanical speed of the creasing operation, resulting in the overall working efficiency of the equipment being restricted. In addition, the manual cleaning of scraps and removal of finished products are delayed, further extending the production cycle and failing to meet the modern industry's demand for high efficiency and high production capacity. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a packaging box production creasing device and a batch creasing method thereof, which solve the problems in the prior art of cumbersome operations such as manual feeding, positioning, creasing, discharging and debris cleaning, low production efficiency and unstable creasing quality.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a packaging box production creasing device, comprising a base, a PLC control system is installed inside the base, a plurality of cylinders are fixedly connected to the top of the base, a processing table is fixedly connected to the adjacent side of the plurality of cylinders, a pressure plate is fixedly connected to the output end of the cylinder, a half-scale plate is fixedly connected to the right side of the bottom of the pressure plate, an upper mold is connected to the bottom of the pressure plate through a plurality of bolts, a transmission assembly is provided on the inner wall of the processing table, a push block is slidably connected to the top of the processing table, a range groove is provided on the right side of the bottom of the pressure plate to provide space for the push block to run, a limit box is fixedly connected to the right side of the processing table, a lower mold is installed in the middle of the top of the processing table, an ejection assembly is provided at the bottom of the processing table, a feeding assembly is provided on the left side of the processing table, and the PLC control system is electrically connected to the feeding assembly and the cylinders, respectively.

[0008] Preferably, the transmission assembly includes a transmission rod, which is rotatably connected to the right side of the inner wall of the processing table, a first gear is fixedly connected to the middle of the outer wall of the transmission rod, and first bevel gears are fixedly connected to both sides of the outer wall of the transmission rod, a plurality of lead screws are rotatably connected to the inner wall of the processing table, one end of the lead screw is fixedly connected to the second bevel gear, the outer wall of the lead screw is threadedly connected to a threaded sleeve, and the push block is fixedly connected to the top of the threaded sleeve, and is used to be driven by the transmission assembly to realize the discharge of crushed materials and finished products.

[0009] Preferably, the second bevel gear is meshingly connected to the first bevel gear, and the first gear is meshingly connected to the half-scale plate.

[0010] Preferably, the feeding assembly includes a storage plate, which is installed on one side of the cylinder, a feeding plate is installed on the top of the storage plate, a feeding trough is arranged at the right end of the feeding plate, a first grating is arranged on one side of the feeding plate for detecting the passing data of the raw material in the feeding trough, a second grating is installed on the inner wall of the storage plate, a plurality of positioning blocks are arranged on the top of the processing table for preliminarily positioning the position of the raw material, the positioning blocks are made of sponge material, including but not limited to being arranged in square, circular and parallel shapes, a conveyor belt body is installed on one side of the feeding plate, a plurality of fixed blocks are installed on the bottom of the feeding plate, a motor is fixedly connected to one side of the fixed block, a rubber roller is fixedly arranged at the output end of the motor, the rubber roller is rotatably connected to the adjacent side of the two fixed blocks, and a processing trough is opened on one side of the storage plate for taking out packaging materials.

[0011] Preferably, the ejection assembly includes a spring, which is sleeved on the outer wall of the base and has a top connected to a pressure ring. The pressure ring is slidably connected to the middle of the outer wall of the base. The top of the pressure ring is fixedly connected to a push rod, which passes through the processing table and is slidably connected to the inner wall of the lower mold.

[0012] Preferably, the push block is made of sponge material, and the push block slides on the inner wall of the range groove.

[0013] Preferably, the PLC control system includes:

[0014] Instruction rule module, used to set and save control rules;

[0015] A data receiving and processing module, used for collecting data from the first grating and the second grating;

[0016] The rule control module is used to send start and stop commands to the cylinder and motor.

[0017] Preferably, the rules in the instruction rule module are set as follows:

[0018] When the second grating data is received, a start command is transmitted to the motor through the rule control module, and after receiving the first grating data, a start signal is transmitted to the cylinder after a delay of 5s-10s.

[0019] A method for batch creasing of packaging boxes comprises the following steps:

[0020] S1. Equipment initialization: Start the packaging box production indentation device and the PLC control system inside the base, set the delay time to 5-10s, the signal collection interval to 50-100ms, and the transmission ratio of the first bevel gear, the second bevel gear and the lead screw to 1:3-1:4;

[0021] S2, raw material loading and preliminary positioning: The raw material is transmitted to the feeding plate for stacking at a speed of 30-70mm / s through the conveyor belt body, triggering the PLC to record data and start the feeding component to start feeding. After the first grating detects that the raw material passes through the discharge position of the feeding plate, it triggers the PLC to record data and start the conveyor belt body to continue feeding. After the raw material enters the processing table, it is blocked by the positioning block to complete the placement. The elastic compression of the positioning block is 5-10mm, and the positioning pressure range is 0.5-1.5N;

[0022] S3, indentation operation: according to the rules, the cylinder is started to drive the pressing plate to move downward, and the upper mold and the lower mold perform indentation operation on the surface of the corrugated cardboard. The indentation depth is adjusted to 0.5-1mm through the mold gap, and the descending speed of the pressing plate is set to 30-50mm / s. The output pressure range of the cylinder is 50-100N. The half-scale plate at the bottom of the pressing plate is meshed and linked with the transmission rod through the first gear, and the tooth pitch of the half-scale plate is 5-10mm;

[0023] S4, discharge: after indentation, the ejector assembly starts, the spring provides the reset force to drive the pressure ring to move upward, and the finished product is ejected from the lower mold through the ejector rod. The ejection force of the ejector rod is adjusted to 10-20N, the ejection stroke range is 25-40mm, and the push block is 50-100mm / s

[0024] It slides in the range groove at a speed of 10 ...

[0025] S5, raw material cycle processing: after the second grating detects the raw material arrival signal, it triggers the PLC system to start the motor and drive the rubber roller to continue feeding. The conveying speed of the feeding plate is adjusted to 70-100mm / s, the feeding interval time is set to 8-12s, and the speed of the rubber roller is adjusted to 20-40 revolutions per minute;

[0026] S6. Complete processing and clean the device: After completing all raw material processing, stop the equipment, check the mold gap and clean the device, adjust the ejector reset stroke to 25-40mm, check the wear status of the pressure ring, spring and transmission assembly including the transmission rod, the first gear and the first bevel gear, and lubricate them, clean the broken materials in the processing table and the residue in the lower mold.

[0027] 10. A method for batch creasing of packaging boxes according to claim 9, characterized in that the initialization in step S1 comprises:

[0028] S11, configure the instruction rule module, first adjust the response time of the feed signal and the indentation signal to 0.5-1s, then set the linkage control rules of the cylinder and the motor, and check the meshing status of the transmission rod, the first gear and the first bevel gear before starting.

[0029] The present invention provides a packaging box production creasing device and a batch creasing method thereof, which have the following beneficial effects:

[0030] 1. After the pressing plate completes the indentation operation, the present invention links with the ejection assembly to move the ejector rod upward to eject the finished product, thereby avoiding manual intervention. At the same time, the transmission assembly drives the push block to slide on the surface of the processing table to push the crushed materials away from the processing area in time. This design simplifies the operation process, reduces manual operation, and improves the continuity, safety and production efficiency of the equipment operation.

[0031] 2. The feeding assembly of the present invention detects the state of the raw material through the grating sensor, accurately controls the conveying and positioning of the raw material, and ensures that each piece of raw material is accurately positioned. During the indentation operation, the PLC system controls the coordinated action of the cylinder and the transmission assembly to automatically complete the indentation operation and the transmission force transmission, reducing manual intervention. During the discharge stage, the PLC system controls the ejection assembly and the push block again to achieve the synchronous discharge of the finished product and the crushed material. Through the automated system control, the production efficiency is greatly improved, the complexity and error of manual operation are reduced, and it is suitable for mass production needs.

[0032] 3. The feeding assembly of the present invention adopts a combined structure of a conveyor belt, a feeding plate and a rubber roller to achieve continuous transportation and precise positioning of the raw material. The positioning block is designed with a flexible material, which can flexibly block and position the raw material to prevent displacement or deformation, thereby ensuring the accuracy and consistency of subsequent indentation operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A perspective view of the present invention;

[0034] Figure 2 It is a right view structural schematic diagram of the present invention;

[0035] Figure 3 It is an exploded schematic diagram of the limit box structure of the present invention;

[0036] Figure 4 It is a schematic diagram of the upper mold structure of the present invention;

[0037] Figure 5 is a schematic diagram of the first gear structure of the present invention;

[0038] Figure 6 It is a schematic diagram of the internal structure of the processing table of the present invention;

[0039] Figure 7 It is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0040] Figure 8 It is a schematic diagram of the feeding plate structure when viewed from above of the present invention;

[0041] Fig. 9 It is a flowchart of the method of the present invention;

[0042] Fig.10 It is a schematic diagram of the indentation of the finished product of the present invention.

[0043] Among them, 1. base; 2. cylinder; 3. pressure plate; 4. half-scale plate; 5. limit box; 6. processing table; 7. lower mold; 8. range groove; 9. upper mold; 10. bolt; 11. transmission rod; 12. first gear; 13. first bevel gear; 14. lead screw; 15. second bevel gear; 16. push block; 17. positioning block; 18. spring; 19. pressure ring; 20. push rod; 21. threaded sleeve; 22. storage plate; 23. feed plate; 24. first grating; 25. second grating; 26. fixed block; 27. rubber roller; 28. processing tank; 29. ​​conveyor belt body; 30. motor. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Embodiment 1:

[0046] Please refer to the attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides a packaging box production creasing device, including a base 1, a PLC control system is installed inside the base 1, a plurality of cylinders 2 are fixedly connected to the top of the base 1, a processing table 6 is fixedly connected to the adjacent side of the plurality of cylinders 2, a pressing plate 3 is fixedly connected to the output end of the cylinder 2, a half-scale plate 4 is fixedly connected to the bottom right side of the pressing plate 3, an upper mold 9 is connected to the bottom of the pressing plate 3 through a plurality of bolts 10, a transmission assembly is provided on the inner wall of the processing table 6, a push block 16 is slidably connected to the top of the processing table 6, a range groove 8 is provided on the right side of the bottom of the pressing plate 3 to provide a running space for the push block 16, a limit box 5 is fixedly connected to the right side of the processing table 6, a lower mold 7 is installed in the middle of the top of the processing table 6, an ejection assembly is provided at the bottom of the processing table 6, a feeding assembly is provided on the left side of the processing table 6, and the PLC control system is electrically connected to the feeding assembly and the cylinder 2 respectively.

[0047] The push block 16 is made of sponge material, and the push block 16 slides on the inner wall of the range groove 8 .

[0048] Specifically, a PLC control system is installed inside the base 1 to control each link of the device operation. A plurality of cylinders 2 are fixedly connected to the top of the base 1, and the output end of the cylinder 2 is fixedly connected to the pressing plate 3. The bottom of the pressing plate 3 is connected to an upper mold 9 through a plurality of bolts 10. The upper mold 9 is used to cooperate with the lower mold 7 to realize the indentation processing of corrugated cardboard or other raw materials. A half-scale plate 4 is fixedly connected to the right side of the bottom of the pressing plate 3. The half-scale plate 4 provides power to the transmission assembly through meshing transmission to drive the push block 16 to complete the separation and discharge of finished products and waste materials.

[0049] The processing table 6 is fixedly connected to the output ends of the multiple cylinders 2, and is used to carry and position the raw material. A lower mold 7 is installed in the middle of the top of the processing table 6, and a processing space for realizing indentation is formed between the lower mold 7 and the upper mold 9. A transmission assembly is provided on the inner wall of the processing table 6, and the transmission assembly includes a transmission rod 11, a gear and a lead screw 14 structure, and its function is to transmit power to the push block 16 to realize the discharge of waste and finished products after processing. The top of the processing table 6 is slidably connected with a push block 16, and the push block 16 is made of sponge material and can slide and run on the inner wall of the range groove 8. The range groove 8 is located on the right side of the bottom of the pressure plate 3, and is used to provide an independent space for the operation of the push block 16 to ensure the sliding stability of the push block 16.

[0050] The right side of the processing table 6 is fixedly connected to a limit box 5, which is mainly used to limit the position of the raw material during processing to prevent the raw material from sliding or shifting on the processing table 6. An ejector assembly is provided at the bottom of the processing table 6, and the ejector assembly includes a spring 18 and a push rod 20 structure. The elastic force of the spring 18 drives the push rod 20 to eject the finished product from the lower mold 7, so that the finished product can be quickly taken out. A feed assembly is provided on the left side of the processing table 6. The feed assembly includes a conveyor belt body 29, a feed plate 23, and a first and a second grating sensor, which is used to transport the raw material from the feed end to the processing table 6, and at the same time detect the position and state of the raw material through the grating to ensure that the raw material is in an accurate position before processing.

[0051] The PLC control system cooperates with the feed assembly and the cylinder 2 through electrical connection, receives feedback data from the grating sensor, and controls the working state of the feed assembly and the pressing plate 3 according to preset rules. When the grating sensor detects the signal that the raw material is in place, the PLC control system sends a command to start the cylinder 2, drive the pressing plate 3 to press down, and the upper mold 9 and the lower mold 7 jointly complete the indentation process. After the processing is completed, the PLC control system starts the ejection assembly to eject the finished product, and at the same time controls the transmission assembly to drive the push block 16 to slide, and discharge the finished product and waste into the storage plate 22.

[0052] Please refer to the attached Figure 5 -Attached Figure 6 The transmission assembly includes a transmission rod 11, which is rotatably connected to the right side of the inner wall of the processing table 6, a first gear 12 is fixedly connected to the middle of the outer wall of the transmission rod 11, and first bevel gears 13 are fixedly connected to both sides of the outer wall of the transmission rod 11. A plurality of lead screws 14 are rotatably connected to the inner wall of the processing table 6, one end of the lead screw 14 is fixedly connected to the second bevel gear 15, the outer wall of the lead screw 14 is threadedly connected to a threaded sleeve 21, and a push block 16 is fixedly connected to the top of the threaded sleeve 21, which is used to be driven by the transmission assembly to realize the discharge of crushed materials and finished products.

[0053] The second bevel gear 15 is meshed with the first bevel gear 13 , and the first gear 12 is meshed with the half-scale plate 4 .

[0054] Specifically, through the coordinated action of the transmission rod 11, the first gear 12, the first bevel gear 13, the second bevel gear 15 and the lead screw 14, efficient discharge of finished products and waste materials after processing is achieved. The transmission rod 11 is rotatably connected to the right side of the inner wall of the processing table 6, serving as the core axis of the entire transmission system, one end of which is driven by an external power source, and the other end is linked through a transmission gear. The middle part of the outer wall of the transmission rod 11 is fixedly connected to the first gear 12, which is connected to the half-scale plate 4 through meshing, and transmits power to the transmission system on the top of the processing table 6.

[0055] The first bevel gear 13 is fixedly connected to both sides of the transmission rod 11, and the first bevel gear 13 is connected to the second bevel gear 15 by meshing. The second bevel gear 15 is fixed to one end of the lead screw 14. When the transmission rod 11 rotates, the lead screw 14 is driven to rotate synchronously through the transmission action of the bevel gear. The lead screw 14 is arranged along the inner wall of the processing table 6, and the outer wall thereof is threadedly connected with a threaded sleeve 21. The threaded sleeve 21 moves axially when the lead screw 14 rotates, realizing the sliding operation of the push block 16.

[0056] The push block 16 is fixedly connected to the top of the threaded sleeve 21 and can slide precisely in the moving direction of the threaded sleeve 21. The range groove 8 provides a running space for the push block 16, ensuring that the push block 16 can quickly separate and discharge the waste material and the finished product from the top of the processing table 6 through the driving action of the lead screw 14 after the processing is completed. The sponge material design of the push block 16 effectively alleviates the impact force on the waste material and the finished product during the sliding process, while ensuring the stability of the discharge action.

[0057] The transmission ratio of the first gear 12, the first bevel gear 13 and the second bevel gear 15 is optimized to ensure that the power output of the transmission assembly is uniform and reliable, and can meet the processing requirements of raw materials of different thicknesses and rigidities. The entire transmission system is precisely meshed and linked with the threaded sleeve 21, so that the separation of finished products and waste materials is efficient and accurate, meeting the industrial requirements of mass production.

[0058] Please see attached Figure 1 , Attachment Figure 2 , Attachment Figure 8The feeding assembly includes a receiving plate 22, which is installed on one side of the cylinder 2. A feeding plate 23 is installed on the top of the receiving plate 22. A feeding trough is arranged at the right end of the feeding plate 23. A first grating 24 is arranged on one side of the feeding plate 23 for detecting the passing data of the raw material in the feeding trough. A second grating 25 is installed on the inner wall of the receiving plate 22. A plurality of positioning blocks 17 are arranged on the top of the processing table 6 for preliminarily positioning the position of the raw material. The positioning blocks 17 are made of sponge material, including but not limited to being arranged in square, circular and parallel shapes. A conveyor belt body 29 is installed on one side of the feeding plate 23. A plurality of fixed blocks 26 are installed on the bottom of the feeding plate 23. A motor 30 is fixedly connected to one side of the fixed block 26. A rubber roller 27 is fixedly arranged at the output end of the motor 30. The rubber roller 27 is rotatably connected to the adjacent side of the two fixed blocks 26. A processing groove 28 is opened on one side of the receiving plate 22 for taking out the packaging material.

[0059] Specifically, the feeding assembly realizes efficient automatic conveying and positioning of the raw material through the coordinated action of the receiving plate 22, the feeding plate 23, the conveyor belt body 29, the grating sensor (the first grating 24 and the second grating 25) and the motor 30. The receiving plate 22 is installed on one side of the cylinder 2 for storing the raw material to be processed, and the second grating 25 is installed on the inner wall thereof for real-time monitoring of the quantity or state of the raw material in the receiving plate 22. When the second grating 25 detects that the quantity of raw material is insufficient, the feeding signal can be triggered through the PLC control system to ensure the continuity of the feeding process.

[0060] The top of the receiving plate 22 is fixedly connected to the feeding plate 23, which is used to transport the raw material from the receiving plate 22 to the processing table 6, and to preliminarily guide and fix the raw material in position through the feeding trough provided at the right end thereof. A first grating 24 is installed on one side of the feeding plate 23, which is used to detect the position and passing state of the raw material in the feeding trough, and feed back the detection data to the PLC control system to accurately control the feeding action.

[0061] One side of the feeding plate 23 is fixedly connected to the conveyor belt body 29, which is driven by the motor 30 to realize the fast and stable transmission of the raw material. The bottom of the feeding plate 23 cooperates with the rubber roller 27 through multiple fixed blocks 26. The design of the fixed block 26 provides support and installation space for the rubber roller 27, and the rotation of the rubber roller 27 further promotes the operation of the conveyor belt body 29 to ensure that the raw material does not slip or get stuck during the transportation process. The motor 30 directly drives the rubber roller 27, and its speed and torque are precisely controlled by the PLC system to meet the transportation requirements of different raw material thickness and rigidity.

[0062] A plurality of positioning blocks 17 are arranged on the top of the processing table 6, which are used to make preliminary position corrections to the wool material to prevent the wool material from shifting when entering the processing table 6. The positioning blocks 17 are made of sponge material, which can provide flexible support to avoid scratches or indentations on the surface of the wool material, and can also apply appropriate positioning force to the wool material through its elastic properties. The positioning blocks 17 can be designed to be square, circular or arranged in parallel according to specific needs, further improving their adaptability to wool materials of different shapes.

[0063] A processing tank 28 is provided on one side of the receiving plate 22 for taking out and arranging the packaging materials. The processing tank 28 is designed as an open structure, which is convenient for manual or automatic equipment to clean and replenish the raw materials, and matches the overall operation flow line of the feeding assembly.

[0064] The design of the entire feeding assembly realizes the automatic control of the whole process from raw material storage, automatic conveying to precise positioning. The real-time monitoring of the grating sensor and the linkage of the PLC system further improve the accuracy and efficiency of feeding, so that the raw material can be quickly and accurately transferred to the processing table 6, providing reliable guarantee for the subsequent indentation processing.

[0065] Please refer to the attached Figure 4 , Attachment Figure 7 The ejection assembly includes a spring 18, which is sleeved on the outer wall of the base 1, and the top of the spring 18 is connected to the pressure ring 19, which is slidably connected to the middle of the outer wall of the base 1, and the top of the pressure ring 19 is fixedly connected with a push rod 20, which passes through the processing table 6 and is slidably connected to the inner wall of the lower mold 7.

[0066] Specifically, the spring 18 is sleeved on the outer wall of the base 1, one end of which is fixed to the bottom of the base 1, and the other end is connected to the pressure ring 19. The pressure ring 19 is slidably connected to the middle of the outer wall of the base 1, and the elastic reset force of the spring 18 is used to realize the thrust transmission to the push rod 20.

[0067] The top of the pressure ring 19 is fixedly connected to the ejector rod 20, which passes through the processing table 6 and is slidably connected to the inner wall of the lower mold 7. When the finished product is processed, the preload force of the spring 18 is released as the pressure plate 3 is lifted, thereby pushing the pressure ring 19 to move upward. The pressure ring 19 drives the ejector rod 20 to move upward synchronously, so that the top of the ejector rod 20 ejects the processed finished product from the lower mold 7, ensuring that the finished product and the mold are completely separated.

[0068] The sliding part of the ejector 20 is designed with a precise gap between the processing table 6 and the lower mold 7, which not only ensures the smooth operation of the ejector 20, but also prevents the movement from being slow due to excessive friction during the sliding process. The stroke length of the ejector 20 is optimized to meet the ejection requirements of finished products of different thicknesses while avoiding excessive extrusion pressure on the finished products. Since the feeding is from top to bottom, the setting of the ejector 20 will not affect the entry of the raw material. The stiffness of the spring 18 and the sliding resistance of the pressure ring 19 are adjusted to ensure that the ejector 20 moves smoothly and reliably when ejecting the finished product.

[0069] The ejector assembly is compact in design, and the reset function of the spring 18 is used to dynamically control the pressure ring 19 and the ejector rod 20, simplifying the complex drive device in the traditional ejector mechanism. The sliding connection between the components is precise and reliable, which not only improves the efficiency of finished product ejection, but also reduces the wear or jamming caused by residual force inside the mold. The overall structure ensures smooth ejection while facilitating subsequent maintenance and cleaning, and is suitable for finished product processing application scenarios of various specifications and shapes.

[0070] Please see attached Figure 7 Embodiment 2: Based on Embodiment 1, the present invention provides an embodiment of a PLC control system, including:

[0071] The instruction rule module is used to set and save control rules; the rules are set as follows:

[0072] When receiving the data from the second grating 25, the rule control module transmits a start command to the motor 30, and after receiving the data from the first grating 24, a start signal is transmitted to the cylinder 2 after a delay of 5s-10s. The data receiving and processing module is used to collect data from the first grating 24 and the second grating 25; the rule control module is used to issue start and stop commands to the cylinder 2 and the motor 30.

[0073] Specifically, the instruction rule module is responsible for setting and saving the control rules for the operation of the equipment, and storing the set operation process in the form of logical instructions in the PLC system. In this embodiment, the control rules are set as follows: when the second grating 25 detects the arrival signal of the wool in the storage plate 22, the instruction rule module triggers the rule control module to send a start command to the motor 30, driving the feeding plate 23 and the conveyor belt body 29 to start running; when the first grating 24 detects that the wool has reached the end of the feeding trough, the instruction rule module performs a delay operation, and after a delay of 5-10 seconds, sends a start signal to the cylinder 2, driving the pressing plate 3 to press down to complete the indentation operation.

[0074] The data receiving and processing module is the core data processing unit of the PLC system, and is used to collect feedback signals from the first grating 24 and the second grating 25 in real time. The second grating 25 is responsible for detecting the existence of the wool in the storage plate 22 to ensure that there is enough wool before the feeding assembly is started; the first grating 24 is responsible for detecting the position of the wool in the feeding trough. When the wool is in place, the first grating 24 feeds back the signal to the data receiving and processing module. The data receiving and processing module ensures that the feeding and indentation operations are performed at the correct timing by analyzing the feedback signal of the grating sensor, thereby avoiding no-load or malfunction during the operation of the equipment.

[0075] The rule control module starts and stops the key components of the equipment (such as the cylinder 2 and the motor 30) according to the logic rules set by the instruction rule module and the real-time data transmitted by the data receiving and processing module. In this embodiment, when the second grating 25 detects that the raw material is in place, the rule control module immediately sends a start command to the motor 30 to drive the feeding plate 23 and the conveyor belt body 29 to operate, so as to achieve accurate delivery of the raw material; when the first grating 24 detects that the raw material position reaches the end of the feeding trough, the rule control module performs a delay operation to ensure that the raw material is positioned within 5-10 seconds, and then sends a start command to the cylinder 2 to drive the pressing plate 3 to perform the indentation operation.

[0076] After the second grating 25 detects that the wool material is in place in the receiving plate 22, the rule control module is triggered to start the feeding assembly, and the motor 30 drives the feeding plate 23 and the conveyor belt body 29 to operate.

[0077] After the raw material passes through the feeding trough, the first grating 24 detects that the position of the raw material reaches the end of the feeding trough, and the data receiving and processing module records the signal and feeds it back to the instruction rule module.

[0078] After a delay of 5-10 seconds, the instruction rule module starts the cylinder 2 through the rule control module, and the cylinder 2 pushes the pressing plate 3 downward to complete the indentation operation of the upper mold 9 and the lower mold 7.

[0079] After the indentation is completed, the ejection assembly is triggered to start, and the finished product is ejected. At the same time, the transmission assembly drives the push block 16 to slide, and the finished product and waste are discharged.

[0080] Please see attached Fig. 9 Embodiment 3: Based on Embodiment 1 and Embodiment 2, the present invention provides an embodiment of a method for batch creasing of packaging boxes, comprising the following steps:

[0081] S1, equipment initialization: start the packaging box production creasing device and the PLC control system inside the base 1, set the delay time to 5-10s, the signal collection interval to 50-100ms, and the transmission ratio of the first bevel gear 13, the second bevel gear 15 and the lead screw 14 to 1:3-1:4;

[0082] Specifically, start the packaging box production creasing device to ensure the normal operation of the PLC control system inside the base 1. Set the delay parameter in the PLC system to 5-10 seconds to ensure the process-based operation of feeding, positioning and creasing operations. Set the data acquisition interval of the grating sensor to 50-100 milliseconds to ensure real-time feedback of feeding and raw material position data to reduce errors. Configure the transmission ratio of the first bevel gear 13, the second bevel gear 15 and the lead screw 14 to be 1:3 to 1:4 to optimize the torque output and speed of the transmission assembly, so that the push block 16 can run smoothly, and use the pre-opened range slot 8 to accommodate the position of the push block 16 during the fitting process between the pressure plate 3 and the processing table 6, so as to complete the efficient separation of waste materials and finished products and reduce motion interference.

[0083] During the initialization phase, check the meshing state of the transmission rod 11 with the first gear 12 and the first bevel gear 13 to ensure smooth power transmission; at the same time, confirm the connection state of the ejector rod 20 and the spring 18 to ensure that the action of the ejector assembly is accurate and reliable. Perform functional tests on the feed plate 23 and the conveyor belt body 29 of the feed assembly, and check the data acquisition performance of the first grating 24 and the second grating 25 of the grating sensor to ensure that it can accurately identify the state of the raw material and provide timely feedback to the PLC control system.

[0084] S2, raw material loading and preliminary positioning: the raw material is transmitted to the feeding plate 23 at a speed of 30-70 mm / s through the conveyor belt body 29 for stacking, triggering the PLC to record data and start the feeding assembly to start feeding. After the first grating 24 detects that the raw material passes through the discharge position of the feeding plate 23, it triggers the PLC to record data and start the conveyor belt body 29 to continue feeding. After the raw material enters the processing table 6, it is blocked by the positioning block 17 to complete the placement. The elastic compression amount of the positioning block 17 is 5-10 mm, and the positioning pressure range is 0.5-1.5 N.

[0085] Specifically, the raw material is transported from the receiving plate 22 to the feeding plate 23 at a speed of 30-70 mm / s by the conveyor belt body 29. During the transportation process, the second grating 25 detects the state of the raw material in the receiving plate 22 in real time. When the grating detects that the raw material reaches the conveying condition, the PLC control system is triggered to record data and the feeding component is started to feed the raw material. After the raw material reaches the discharge end of the feeding plate 23, the first grating 24 detects the state of the raw material passing through the feeding trough, and again feeds back the signal to the PLC system to confirm that the raw material has entered the feeding area of ​​the processing table 6.

[0086] After the wool material enters the processing table 6, the wool material is initially fixed by a plurality of positioning blocks 17 arranged on the top of the processing table 6. The positioning blocks 17 are made of sponge material and have a flexible support function. The elastic compression amount is controlled between 5-10 mm, and the positioning pressure applied is in the range of 0.5-1.5 Newtons, ensuring that the position of the wool material on the processing table 6 is accurately aligned without causing deformation or damage to the wool material due to excessive pressure. The design form of the positioning blocks 17 can be selected as square, circular or parallel arrangement according to the size and shape of the wool material to meet the positioning requirements of different packaging box wool materials.

[0087] S3, indentation operation: according to the rules, the cylinder 2 is started to drive the pressing plate 3 to move downward, and the upper mold 9 and the lower mold 7 perform indentation operation on the surface of the corrugated cardboard. The indentation depth is adjusted to 0.5-1mm through the mold gap, and the descending speed of the pressing plate 3 is set to 30-50mm / s. The output pressure range of the cylinder 2 is 50-100N. The half-scale plate 4 at the bottom of the pressing plate 3 is meshed and linked with the transmission rod 11 through the first gear 12, and the tooth pitch of the half-scale plate 4 is 5-10mm;

[0088] Specifically, according to the rules preset by the PLC control system, when the raw material is positioned, the cylinder 2 receives the start command and drives the pressing plate 3 to move downward at a descending speed of 30-50 mm / s. The pressing plate 3 is fixedly connected to the upper mold 9 by bolts 10, and cooperates with the lower mold 7 on the top of the processing table 6 during the pressing process to perform an indentation operation on the surface of the corrugated cardboard. The setting range of the mold gap is 0.5-1 mm to ensure that the indentation depth is moderate to meet the packaging box molding requirements.

[0089] The bottom of the pressing plate 3 is fixedly connected with a half-scale plate 4, which is meshed with the transmission rod 11 through the first gear 12. During the descending process of the pressing plate 3, the gear pitch of the half-scale plate 4 is set to 5-10 mm, and the power of the indentation action is synchronously transmitted to the transmission component through precise meshing transmission. The rotation of the transmission rod 11 further drives the bevel gear and the lead screw 14 to provide power support for the subsequent sliding of the push block 16 and the separation of finished waste.

[0090] During the creasing process, the output pressure of the cylinder 2 is set in the range of 50-100 Newtons, and its control accuracy is managed by the PLC system to ensure smooth and smooth pressing action of the pressing plate 3. This pressure range is optimized for different thicknesses of corrugated cardboard and can achieve clear creasing effects without damaging the material.

[0091] S4, discharging: after indentation, the ejector assembly is started, the spring 18 provides a reset force to drive the pressure ring 19 to move upward, and the finished product is ejected from the lower mold 7 by the ejector rod 20. The ejection force of the ejector rod 20 is adjusted to 10-20N, and the ejection stroke range is 25-40mm. The push block 16 slides in the range groove 8 at a speed of 50-100mm / s, and the finished product and the crushed material are discharged simultaneously through the transmission of the lead screw 14 and the second bevel gear 15. The clearance between the push block 16 and the inner wall of the range groove 8 is controlled to be 1-2mm.

[0092] Specifically, after the indentation is completed, the spring 18 releases the preload force, drives the pressure ring 19 to move upward, and the pressure ring 19 drives the ejector 20 to slide upward along the axial direction of the processing table 6. The movement of the ejector 20 ejects the finished product from the die-stamping area of ​​the lower mold 7. The ejection force of the ejector 20 is controlled between 10-20 Newtons to ensure a smooth ejection action and avoid secondary damage to the finished product. The travel range of the ejector 20 is set to 25-40 mm to adapt to the ejection requirements of finished products of different thicknesses.

[0093] This step combines the vertical ejection action of the ejector 20 with the horizontal sliding of the push block 16 to ensure that the finished product and waste are separated quickly and efficiently, avoiding secondary contamination or accumulation problems. The coordinated operation of the ejection assembly and the transmission assembly further improves the automation of the discharge process and provides a stable and reliable discharge mechanism for mass production.

[0094] S5, raw material cycle processing: after the second grating 25 detects the raw material arrival signal, the PLC system is triggered to start the motor 30, driving the rubber roller 27 to continue feeding, the conveying speed of the feeding plate 23 is adjusted to 70-100 mm / s, the feeding interval time is set to 8-12s, and the speed of the rubber roller 27 is adjusted to 20-40 revolutions per minute;

[0095] Specifically, when the second grating 25 detects the signal that the wool material is in place in the receiving plate 22, the PLC control system immediately triggers the feeding operation and starts the motor 30. The motor 30 drives the rubber roller 27 to rotate, and the wool material is transported from the receiving plate 22 to the top of the processing table 6 through the transmission effect of the rubber roller 27 and the feeding plate 23. The speed of the rubber roller 27 is adjusted to 20-40 revolutions per minute to ensure the speed and stability of the wool material during the transportation process.

[0096] The conveying speed of the feeding plate 23 is set to 70-100 mm / s. According to the thickness and size of the raw material, the feeding speed is dynamically adjusted by the PLC system to ensure that the raw material can smoothly enter the processing table 6 without accumulation or jamming. The feeding interval is set to 8-12 seconds, which fully reserves the conveying and positioning time of the raw material to avoid errors in the subsequent indentation operation due to the raw material not being correctly positioned.

[0097] The entire cycle is realized by the signal feedback of the grating sensor and the linkage of the PLC control system: the second grating 25 monitors the state of the wool material in real time, and triggers the feeding action when it detects that new wool material is in place; the first grating 24 monitors whether the wool material passes through the feeding trough correctly, and feeds back the signal to the PLC system to ensure that each step of the wool material conveying operation is completed accurately.

[0098] At this stage, the coordinated operation of the feeding plate 23 and the conveyor belt body 29, as well as the friction transmission between the rubber roller 27 and the wool material, ensure that the wool material can be conveyed to the processing table 6 at a stable speed and direction. At the same time, through the optimized combination of feeding speed and feeding interval, the feeding assembly can adapt to the processing requirements of different batches of wool materials, providing efficient and stable automatic cycle processing capabilities for packaging box production.

[0099] S6. Complete processing and clean the device: After completing all raw material processing, stop the equipment, check the mold gap and clean the device, adjust the reset stroke of the push rod 20 to 25-40mm, check the wear status of the pressure ring 19, spring 18 and transmission assembly including the transmission rod 11, the first gear 12, and the first bevel gear 13, and lubricate them, clean the broken materials in the processing table 6 and the residues in the lower mold 7.

[0100] Please see attached Fig.10 Example 4: Specific application of corrugated cardboard creasing operation

[0101] In this embodiment, 1 cm thick corrugated cardboard is used as the raw material and processed by the device and preparation method described in Examples 1 to 3 of the present invention, with the goal of achieving pre-formed indentations of the packaging box shape. The corrugated cardboard has certain elasticity and compressive strength due to its internal wave structure, and has high requirements for the depth and uniformity of the indentation to ensure good accuracy and fold line effect during subsequent folding.

[0102] Raw material specifications: corrugated cardboard, thickness 1cm, single sheet size is 300×700mm, suitable for small packaging box design.

[0103] Indentation design requirements: The indentation pattern is a rectangular frame and its internal dividing lines. The outer dimensions of the rectangular frame are 280×380 mm, and the interior is divided into multiple small areas by parallel lines for subsequent folding and forming.

[0104] Steps:

[0105] Raw material loading: The corrugated cardboard is transferred to the feeding plate 23 through the conveyor belt body 29. After the first grating 24 confirms that the raw material has arrived, it is sent to the processing table 6 and accurately positioned by the positioning block 17 to ensure that the indentations of the raw material are aligned.

[0106] Indentation operation: The cylinder 2 is started to drive the pressing plate 3 to move downward, and the upper mold 9 and the lower mold 7 form a 0.8 mm deep rectangular frame and its internal dividing line indentation on the surface of the corrugated cardboard. The indentation depth is adjusted to 0.5-1 mm through the mold gap to ensure that the surface of the corrugated cardboard is neat without destroying the internal wave structure.

[0107] Finished product ejection: After the creasing is completed, the corrugated cardboard is ejected from the mold by the ejector rod 20 of the ejector assembly, and the finished product and the scraps are separated by the push block 16.

[0108] Finished product features:

[0109] The indentation lines are clear and even, without burrs or cracks, the outer rectangular frame size is accurate, and the internal dividing line position is precise, which facilitates the subsequent folding and forming of the packaging box.

[0110] Maintain the overall strength of the corrugated cardboard and avoid damaging its internal wave structure due to excessive indentation.

[0111] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging box production creasing device, comprising a base (1), characterized in that: A PLC control system is installed inside the base (1); a plurality of cylinders (2) are fixedly connected to the top of the base (1); a processing table (6) is fixedly connected to the adjacent sides of the plurality of cylinders (2); a pressure plate (3) is fixedly connected to the output end of the cylinder (2); a half-scale plate (4) is fixedly connected to the right side of the bottom of the pressure plate (3); the bottom of the pressure plate (3) is connected to an upper mold (9) via a plurality of bolts (10); a transmission assembly is provided on the inner wall of the processing table (6); A push block (16) is slidably connected to the top of the processing table (6); a range groove (8) is provided on the right side of the bottom of the pressure plate (3) to provide operating space for the push block (16); a limit box (5) is fixedly connected to the right side of the processing table (6); a lower mold (7) is installed in the middle of the top of the processing table (6); an ejection assembly is provided at the bottom of the processing table (6); a feeding assembly is provided on the left side of the processing table (6); and the PLC control system is electrically connected to the feeding assembly and the cylinder (2) respectively.

2. A packaging box production creasing device according to claim 1, characterized in that: The transmission assembly comprises a transmission rod (11), the transmission rod (11) is rotatably connected to the right side of the inner wall of the processing table (6), a first gear (12) is fixedly connected to the middle of the outer wall of the transmission rod (11), both sides of the outer wall of the transmission rod (11) are fixedly connected to the first bevel gear (13), the inner wall of the processing table (6) is rotatably connected to a plurality of lead screws (14), one end of the lead screw (14) is fixedly connected to the second bevel gear (15), the outer wall of the lead screw (14) is threadedly connected to a threaded sleeve (21), and the push block (16) is fixedly connected to the top of the threaded sleeve (21) and is used to be driven by the transmission assembly to realize the discharge of crushed materials and finished products.

3. A packaging box production creasing device according to claim 2, characterized in that: The second bevel gear (15) is meshingly connected to the first bevel gear (13), and the first gear (12) is meshingly connected to the half-scale plate (4).

4. A packaging box production creasing device according to claim 1, characterized in that: The feeding assembly comprises a receiving plate (22), the receiving plate (22) being mounted on one side of the cylinder (2), a feeding plate (23) being mounted on the top of the receiving plate (22), a feeding trough being arranged at the right end of the feeding plate (23), a first grating (24) being arranged on one side of the feeding plate (23) for detecting the passing data of the rough material in the feeding trough, a second grating (25) being mounted on the inner wall of the receiving plate (22), a plurality of positioning blocks (17) being arranged on the top of the processing table (6) for preliminarily positioning the rough material, the positioning blocks (17) being arranged in a A sponge material is used, including but not limited to being arranged in a square, circular and parallel manner. A conveyor belt body (29) is installed on one side of the feeding plate (23). A plurality of fixed blocks (26) are installed at the bottom of the feeding plate (23). A motor (30) is fixedly connected to one side of the fixed block (26). A rubber roller (27) is fixedly arranged at the output end of the motor (30). The rubber roller (27) is rotatably connected to the adjacent side of the two fixed blocks (26). A processing groove (28) is opened on one side of the storage plate (22) for taking out the packaging materials.

5. The packaging box production creasing device according to claim 1, characterized in that: The ejection assembly comprises a spring (18), the spring (18) is sleeved on the outer wall of the base (1), the top of the spring (18) is connected to a pressure ring (19), the pressure ring (19) is slidably connected to the middle part of the outer wall of the base (1), the top of the pressure ring (19) is fixedly connected to a push rod (20), the push rod (20) passes through the processing table (6) and is slidably connected to the inner wall of the lower mold (7).

6. A packaging box production creasing device according to claim 1, characterized in that: The push block (16) is made of sponge material, and the push block (16) slides on the inner wall of the range groove (8).

7. A packaging box production creasing device according to claim 1, characterized in that: The PLC control system comprises: Instruction rule module, used to set and save control rules; A data receiving and processing module, used for collecting data from the first grating (24) and the second grating (25); The rule control module is used to send start and stop commands to the cylinder (2) and the motor (30).

8. A packaging box production creasing device according to claim 7, characterized in that: The rules in the instruction rule module are set as follows: When the second grating (25) data is received, a start command is transmitted to the motor (30) through the rule control module, and after receiving the first grating (24) data, a start signal is transmitted to the cylinder (2) after a delay of 5s-10s.

9. A method for batch creasing of packaging boxes, used in a packaging box production creasing device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, equipment initialization: start the packaging box production creasing device and the PLC control system inside the base (1), set the delay time to 5-10s, the signal collection interval to 50-100ms, and select the transmission ratio of the first bevel gear (13), the second bevel gear (15) and the lead screw (14) to be 1:3-1:4; S2, raw material loading and preliminary positioning: the raw material is transmitted to the feeding plate (23) at a speed of 30-70 mm / s through the conveyor belt body (29) for stacking, triggering the PLC to record data and start the feeding component to start feeding. After the first grating (24) detects that the raw material passes the discharge position of the feeding plate (23), the PLC is triggered to record data and start the conveyor belt body (29) to continue feeding. After the raw material enters the processing table (6), the positioning block (17) blocks the raw material and thus completes the placement. The elastic compression amount of the positioning block (17) is 5-10 mm, and the positioning pressure range is 0.5-1.5 N. S3, indentation operation: according to the rules, the cylinder (2) is started to drive the pressing plate (3) to move downward, and the upper mold (9) and the lower mold (7) perform an indentation operation on the surface of the corrugated cardboard. The indentation depth is adjusted to 0.5-1 mm by the mold gap. The descending speed of the pressing plate (3) is set to 30-50 mm / s. The output pressure range of the cylinder (2) is 50-100 N. The half-scale plate (4) at the bottom of the pressing plate (3) is meshed and linked with the transmission rod (11) through the first gear (12), and the tooth pitch of the half-scale plate (4) is 5-10 mm. S4, discharging: after indentation, the ejection assembly is started, the spring (18) provides a reset force to drive the pressure ring (19) to move upward, and the finished product is ejected from the lower mold (7) by the ejector rod (20). The ejection force of the ejector rod (20) is adjusted to 10-20N, and the ejection stroke range is 25-40mm. The push block (16) slides in the range groove (8) at a speed of 50-100mm / s, and the finished product and the crushed material are discharged simultaneously through the transmission of the lead screw (14) and the second bevel gear (15). The clearance between the push block (16) and the inner wall of the range groove (8) is controlled to be 1-2mm; S5, raw material cycle processing: after the second grating (25) detects the raw material arrival signal, the PLC system is triggered to start the motor (30), driving the rubber roller (27) to continue feeding the material, the conveying speed of the feeding plate (23) is adjusted to 70-100 mm / s, the feeding interval time is set to 8-12s, and the speed of the rubber roller (27) is adjusted to 20-40 revolutions per minute; S6. Finish processing and clean the device: After finishing all the raw material processing, stop the equipment, check the mold gap and clean the device, adjust the return stroke of the ejector (20) to 25-40 mm, check the wear state of the pressure ring (19), spring (18) and transmission assembly including the transmission rod (11), the first gear (12) and the first bevel gear (13), and lubricate them, clean the broken materials in the processing table (6) and the residue in the lower mold (7).

10. A method for batch creasing of packaging boxes according to claim 9, characterized in that: The initialization in step S1 includes: S11, configure the instruction rule module, first adjust the response time of the feed signal and the indentation signal to 0.5-1s, then set the linkage control rules of the cylinder (2) and the motor (30), and check the meshing state of the transmission rod (11), the first gear (12) and the first bevel gear (13) before starting.

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