A packaging container printing machine limiting conveying device

Abstract

The application is suitable for the technical field of conveying devices, and provides a packaging container printing machine limiting conveying device, which comprises a device seat, side frames, horizontal guide columns, moving frames, lifting lugs and screw sleeves, the screw sleeves are engaged with the screw teeth arranged at one end of the horizontal guide columns, and the device further comprises equidistance regulating mechanisms, circulating mechanisms, pressure control mechanisms and limiting guide mechanisms. The limiting guide mechanisms can be adjusted by themselves to effectively guide and limit the special-shaped side walls of packaging boards with different thicknesses or non-standard packaging boards, so that the packaging boards do not deviate during the conveying process, the circulating mechanisms can stably and efficiently convey the packaging boards with different thicknesses through the pressure control mechanisms, and the equidistance regulating mechanisms can drive the limiting guide mechanisms and the pressure control mechanisms on the moving frames to move equidistantly, so that the packaging boards with different specifications are effectively limited and conveyed, and the conveying requirements of the device for diversified packaging boards are met.

Description

Technical Field

[0001] This invention belongs to the field of conveying device technology, and particularly relates to a limiting conveying device for a packaging container printing machine. Background Technology

[0002] Packaging containers generally refer to the collective name of packaging equipment, materials and other auxiliary materials used in the process of commodity circulation to protect goods, facilitate storage, facilitate transportation, promote sales, prevent environmental pollution and prevent safety accidents, in accordance with certain technical specifications. Packaging containers include packaging bags, packaging boxes, packaging bottles, packaging cans and packaging cartons, etc. Before assembly, packaging cartons need to have corresponding patterns, trademarks and production information printed on the outside of their original packaging boards.

[0003] The existing printing press limiting conveyor device uses a drive motor to control the rotation of the active roller via a drive shaft. The active roller, in turn, drives the conveyor belt to rotate via a driven roller. The upper end of the adjusting arm rotates around the positioning shaft via an adjusting groove, while the lower end of the adjusting arm moves and adjusts the limiting pressure roller assembly via a lifting arm. This allows the limiting pressure roller assembly to be positioned above the conveyor belt, thus limiting the packaging board on the conveyor belt. This ensures that the forward-carrying packaging board is tightly attached to the conveyor belt and is conveyed forward, resulting in better stability during the forward conveying of the packaging board.

[0004] Although the existing equipment can complete the positioning and conveying of the packaging board, the printing position and angle still need to be repeatedly adjusted before it is fed into the conveyor belt to ensure the final printing quality. This process is not only time-consuming and labor-intensive, but also significantly reduces the efficiency of the entire production line. At the same time, the increased operational errors caused by frequent adjustments lead to an increased proportion of defective products.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a limiting conveyor device for packaging container printing machines to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a limiting conveying device for a packaging container printing machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A limiting conveying device for a packaging container printing machine includes a device base disposed on one side of the infeed end of the printing machine. Packaging plates are arranged at equal intervals on the device base. Side frames are fixed at both ends of the device base. Two horizontal guide columns are installed between the two side frames, and movable frames are arranged at equal intervals between the two side frames. Lifting lugs that slide with the two horizontal guide columns are fixed on the movable frames. A threaded sleeve is fixed inside the lifting lug on one of the movable frames at the end. The threaded sleeve engages with a threaded tooth provided at one end of a horizontal guide column. The device also includes:

[0009] An equidistant adjustment mechanism includes a drive assembly and an equidistant linkage assembly. The drive assembly is installed at one end of the device base and connected to a horizontal guide post with threaded teeth at one end. One end of the equidistant linkage assembly is connected to a plurality of movable frames, and the other end of the equidistant linkage assembly is connected to a side frame located at the beginning end.

[0010] A circulation mechanism, comprising a rotating component and a circulation component, wherein the rotating component is mounted at the other end of the device base and connected to the circulation component, and the circulation component is mounted within a movable frame and located above the packaging plate;

[0011] A pressure control mechanism, one end of which is mounted on a movable frame, and the other end of which is located on a circulation assembly;

[0012] The limiting guide mechanism is symmetrically installed at both ends of one side of the movable frame. The limiting guide mechanisms on two adjacent movable frames are respectively set on both sides of the circulation component on the two movable frames. The bottom of the two adjacent limiting guide mechanisms respectively abuts against the side walls of the packaging plate.

[0013] The drive assembly drives a movable frame located at the end to slide on a horizontal guide post. The movable frame located at the end drives the remaining movable frames to slide synchronously and equidistantly through the equidistant linkage assembly and change the distance between two adjacent movable frames equidistantly. Multiple movable frames simultaneously drive the circulation assembly on them and the limiting guide mechanism on one side to move equidistantly.

[0014] Multiple circulating components drive the pressure control mechanism on them to move at equal distances. The circulating components and the pressure control mechanism effectively press and convey packaging boards of different specifications through equal distance movement.

[0015] Multiple moving frames synchronously drive the limiting and guiding mechanisms on one side to move at equal distances. The two limiting and guiding mechanisms on both sides of the circulating components on two adjacent moving frames move closer to each other and further away from each other. The two limiting and guiding mechanisms effectively limit and guide packaging boards of different specifications by moving closer to each other and further away from each other. At the same time, the limiting and guiding mechanisms effectively limit and guide packaging boards of different thicknesses and effectively guide and limit the irregular side walls of non-standard packaging boards by changing their own angle.

[0016] As a further technical solution of the present invention, the limiting and guiding mechanism includes:

[0017] Fixed columns on both ends of the same side of the mobile frame;

[0018] A collar installed on a fixed post via a set screw;

[0019] Adjusting post A is vertically fixed on the outer wall of the collar;

[0020] Adjust column B is vertically mounted on one end of adjusting column A using an adjusting screw;

[0021] The upper limit post is vertically installed at one end of the adjusting post B by adjusting the screw; and

[0022] Rotate the limiting guide wheel installed on one end of the limiting post, and the limiting guide wheel abuts against the side wall of the packaging plate.

[0023] As a further technical solution of the present invention, the rotating component includes:

[0024] Motor B is fixed to the other end of the device base; and

[0025] A rotating shaft is rotatably mounted on two side frames at both ends. One end of the rotating shaft is connected to the output end of the motor via a transmission belt B. The rotating shaft is horizontally slidably connected to a circulating assembly on multiple movable frames.

[0026] As a further technical solution of the present invention, the loop component includes:

[0027] Rotate the synchronous wheel A, which is mounted on one end of the mobile frame;

[0028] A synchronous wheel B is set on the other end of the mobile frame. The synchronous wheel B is horizontally slidably connected to the rotating shaft. Grooves are provided on both sides of the synchronous wheel B, and bearings are installed in the grooves.

[0029] Sleeves distributed on both sides of synchronous pulley B and fixedly connected to the other end of the movable frame, one end of each sleeve being connected to a bearing; and

[0030] A synchronous belt is fitted onto the outside of synchronous pulleys A and B at both ends. The two ends of the synchronous belt are engaged with synchronous pulleys A and B respectively. The synchronous belt adopts a U-shaped belt structure. The outer wall of the synchronous belt is connected to the pressure control mechanism, and the synchronous belt has mounting holes for fixing the pressure control mechanism.

[0031] As a further technical solution of the present invention, the pressure control mechanism includes:

[0032] A pressure control device is fitted onto the outside of the timing belt. The inner side of the pressure control device is fixedly connected to the timing belt through a mounting hole, and an air inlet is provided on the outer side of the pressure control device.

[0033] A flexible hose installed on a mobile frame, one end of which is connected to the output end of a pneumatic conveying device; and

[0034] A connecting pipe is vertically slidably mounted on a movable frame. The connecting pipe is connected to a flexible hose, and the bottom end of the connecting pipe intermittently engages with the air inlet on the pressure control device.

[0035] As a further technical solution of the present invention, the pressure control device adopts a strip structure with an elliptical cross section, the pressure control device is made of a material with good elasticity and wear resistance, and the end face of the pressure control device that contacts the packaging board has a high coefficient of friction.

[0036] As a further technical solution of the present invention, the driving component includes:

[0037] A motor A is fixed to one end of the device base. The output end of the motor A is connected to a horizontal guide post with threaded teeth at one end via a transmission belt A.

[0038] As a further technical solution of the present invention, the equidistant link assembly includes:

[0039] Mounting post fixed to the top of the mobile frame;

[0040] A connecting rod A is rotatably mounted on a mounting column in the middle, and both ends of one connecting rod A are rotatably connected to connecting rods A on adjacent movable frames; and

[0041] A link B is rotatably mounted on a side frame located at the beginning. The link B is rotatably connected to a link A on an adjacent movable frame. The length of the link B is half the length of the link A.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] The drive assembly drives a movable frame located at the end to slide on a horizontal guide post. The movable frame located at the end can drive the other movable frames to slide synchronously and equidistantly through the equidistant linkage assembly, thereby changing the distance between two adjacent movable frames at equal intervals. Multiple movable frames simultaneously drive the circulation assembly on them and the limiting guide mechanism on one side to move at equal intervals.

[0044] Multiple circulating components drive the pressure control mechanism on them to move at equal distances. Through the equal-distance movement of the circulating components and the pressure control mechanism, packaging boards of different specifications can be effectively pressed and conveyed, so that they can enter the feeding end of the printing press stably and efficiently, meet the conveying needs of the device for diverse packaging boards, significantly improve the conveying efficiency and conveying quality of the device, and thus improve the printing efficiency of the printing press.

[0045] Multiple moving frames synchronously drive the limiting guide mechanisms on one side to move at equal distances. The two limiting guide mechanisms on both sides of the circulating component on two adjacent moving frames move closer or further apart. By moving closer or further apart, the two limiting guide mechanisms can effectively limit and guide packaging boards of different specifications. At the same time, by changing their own angle, the limiting guide mechanisms can not only effectively limit and guide packaging boards of different thicknesses, but also effectively limit and guide non-flat sidewalls on the packaging boards. This satisfies the need to effectively guide and limit the irregular sidewalls of non-standard packaging boards, avoiding deviations during the conveying process, ensuring the accuracy of the angle when the packaging board enters the printing press, improving the printing quality of the packaging board, reducing the printing scrap rate, and reducing the alignment time of the packaging board. After the packaging board enters the two limiting guide mechanisms, there is no need to repeatedly adjust its angle or position, improving the conveying efficiency of the device, and thus improving the printing press and printing efficiency and quality.

[0046] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0047] Figure 1 This is a first-view structural schematic diagram of the packaging container printing machine limiting conveyor device provided in an embodiment of the present invention.

[0048] Figure 2 This is a second-view structural schematic diagram of the packaging container printing press limiting conveyor device provided in an embodiment of the present invention.

[0049] Figure 3 This is a top view of the structure of the limiting conveying device for a packaging container printing machine provided in an embodiment of the present invention.

[0050] Figure 4 for Figure 2 Enlarged view of the structure of the moving frame that works in conjunction with the drive components.

[0051] Figure 5 for Figure 2 Enlarged view of the structure of the moving frame that does not cooperate with the drive components.

[0052] Figure 6 for Figure 5 A structural schematic diagram showing a cross-section of one side of the mobile frame.

[0053] Figure 7 for Figure 5 A schematic diagram of a half-section of the mobile frame structure.

[0054] Figure 8 for Figure 1 Enlarged view of the middle limit guide mechanism.

[0055] Reference numerals: 100-device base, 200-side frame, 300-horizontal guide post, 310-threaded tooth, 400-equidistant adjustment mechanism, 410-drive assembly, 411-motor A, 412-transmission belt A, 420-equidistant linkage assembly, 421-mounting post, 422-link A, 423-link B, 500-moving frame, 510-lifting lug, 520-screw sleeve, 600-circulation assembly, 610-synchronous pulley A, 620-synchronous pulley B, 630-synchronous belt, 640 - Mounting hole, 650 - Groove, 660 - Sleeve, 700 - Rotating assembly, 710 - Motor B, 720 - Drive belt B, 730 - Shaft, 800 - Limiting guide mechanism, 810 - Fixed post, 820 - Collar, 830 - Adjusting post A, 840 - Adjusting post B, 850 - Limiting post, 860 - Adjusting screw, 870 - Limiting guide wheel, 900 - Pressure control mechanism, 910 - Hose, 920 - Connecting pipe, 930 - Air inlet pipe, 940 - Pressure control device, 950 - Air inlet. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0057] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0058] like Figures 1 to 8As shown, a limiting conveying device for a packaging container printing machine, provided as an embodiment of the present invention, includes a device base 100, which is disposed on one side of the feeding end of the printing machine. Packaging plates are arranged at equal intervals on the device base 100. Side frames 200 are fixed at both ends of the device base 100. Two horizontal guide columns 300 are installed between the two side frames 200, and movable frames 500 are arranged at equal intervals between the two side frames 200. Lifting lugs 510 that slide with the two horizontal guide columns 300 are fixed on the movable frames 500. A threaded sleeve 520 is fixed inside the lifting lug 510 on one of the movable frames 500 at the end. The threaded sleeve 520 meshes with a threaded tooth 310 provided at one end of a horizontal guide column 300. The device also includes:

[0059] An equidistant adjustment mechanism 400 includes a drive assembly 410 and an equidistant linkage assembly 420. The drive assembly 410 is installed at one end of the device base 100 and connected to a horizontal guide post 300 with a threaded tooth 310 at one end. One end of the equidistant linkage assembly 420 is connected to a plurality of movable frames 500, and the other end of the equidistant linkage assembly 420 is connected to a side frame 200 located at the beginning end.

[0060] A circulation mechanism, comprising a rotating component 700 and a circulation component 600, wherein the rotating component 700 is mounted at the other end of the device base 100 and connected to the circulation component 600, and the circulation component 600 is mounted within the movable frame 500 and located above the packaging plate;

[0061] A pressure control mechanism 900, one end of which is mounted on a movable frame 500, and the other end of which is located on a circulation assembly 600;

[0062] The limiting guide mechanism 800 is symmetrically installed at both ends of one side of the movable frame 500. The limiting guide mechanisms 800 on two adjacent movable frames 500 are respectively arranged on both sides of the circulation component 600 on the two movable frames 500. The bottoms of the two adjacent limiting guide mechanisms 800 abut against the two side walls of the packaging plate.

[0063] The drive assembly 410 drives a movable frame 500 located at the end to slide on the horizontal guide post 300. The movable frame 500 located at the end can drive the other movable frames 500 to slide synchronously at equal distances through the equidistant linkage assembly 420, thereby changing the distance between two adjacent movable frames 500 at equal distances. Multiple movable frames 500 simultaneously drive the circulation assembly 600 on it and the limiting guide mechanism 800 on one side to move at equal distances.

[0064] Multiple circulation components 600 drive the pressure control mechanism 900 on them to move at equal distances. Through the equal distance movement of the circulation components 600 and the pressure control mechanism 900, packaging boards of different specifications can be effectively pressed and conveyed, so that they can enter the feeding end of the printing press stably and efficiently, meet the conveying needs of the device for diverse packaging boards, significantly improve the conveying efficiency and conveying quality of the device, and thus improve the printing efficiency of the printing press.

[0065] Multiple moving frames 500 synchronously move their limiting guide mechanisms 800 on one side at equal intervals via belts 630. Two limiting guide mechanisms 800 located on either side of the circulating assembly 600 on adjacent moving frames 500 move closer or further apart. By moving closer or further apart, the two limiting guide mechanisms 800 can effectively limit and guide packaging boards of different specifications. Simultaneously, by changing their angle, the limiting guide mechanisms 800 can not only effectively limit and guide packaging boards of different thicknesses but also effectively limit and guide uneven sidewalls on the packaging boards. This satisfies the need for effective guidance and limiting of irregularly shaped sidewalls on non-standard packaging boards, preventing deviations during transport and ensuring the accuracy of the angle when the packaging board enters the printing press. This improves printing quality, reduces printing reject rates, and shortens the alignment time of the packaging board. Once the packaging board enters the two limiting guide mechanisms 800, there is no need for repeated adjustments to its angle or position, improving the transport efficiency of the device and consequently improving the printing press's efficiency and printing quality.

[0066] like Figure 1 , Figure 2 and Figure 8 As shown, in a preferred embodiment of the present invention, the limiting guide mechanism 800 includes a fixed post 810, a collar 820, an adjusting post A830, an adjusting post B840, a limiting post 850, an adjusting screw 860, and a limiting guide wheel 870. The fixed post 810 is fixed on both ends of the same side of the movable frame 500. The collar 820 is installed on the fixed post 810 by a set screw. The adjusting post A830 is vertically fixed on the outer wall of the collar 820. The adjusting post B840 is vertically installed on one end of the adjusting post A830 by an adjusting screw 860. The limiting post 850 is vertically installed on one end of the adjusting post B840 by an adjusting screw 860. The limiting guide wheel 870 is rotatably installed on one end of the limiting post 850. The limiting guide wheel 870 abuts against the side wall of the packaging plate.

[0067] In this embodiment, the installation angle of the collar 820 on the fixed post 810 can be changed by the set screw, so that the collar 820 can rotate on the fixed post 810. By rotating, the collar 820 can drive the height of the limiting guide wheel 870 in the vertical direction, so that the limiting guide wheel 870 can move vertically and abut against the side wall of the packaging board of different thicknesses. This allows it to effectively limit and guide the packaging board of different thicknesses, avoid the packaging board from deviating during the conveying process, and ensure the accuracy of the angle when the packaging board enters the printing machine.

[0068] When multiple movable frames 500 move at equal intervals, the multiple movable frames 500 drive the limit guide wheels 870 on them to move synchronously, so that the limit guide wheels 870 can move horizontally to abut against the side wall of packaging boards of different specifications. This can effectively limit and guide packaging boards of different specifications, avoid the packaging boards from deviating during the conveying process, and ensure the accuracy of the angle when the packaging boards enter the printing machine.

[0069] Meanwhile, by adjusting screw 860, the angles of adjusting column B840 and limiting column 850 can be changed. Adjusting column B840 can rotate along the axis of adjusting column A830, and limiting column 850 can rotate along the axis of adjusting column B840, thereby changing the position and angle of limiting guide wheel 870. This allows limiting guide wheel 870 to effectively limit and guide the non-flat sidewalls of the packaging board, thus effectively guiding and limiting the irregular sidewalls of non-standard packaging boards, preventing the packaging board from shifting during the conveying process, and ensuring the accuracy of the angle when the packaging board enters the printing press.

[0070] In a preferred embodiment, the limiting guide wheel 870 is preferably a leather wheel with a silicone surface, which can reduce damage to the side wall of the packaging board and reduce the scrap rate of the packaging board.

[0071] like Figures 2 to 7 As shown, in a preferred embodiment of the present invention, the rotating assembly 700 includes a motor B710, a transmission belt B720, and a rotating shaft 730. The motor B710 is fixed on the other end of the device base 100. The output end of the motor B710 is connected to the rotating shaft 730 through the transmission belt B720. The two ends of the rotating shaft 730 are respectively rotatably mounted on two side frames 200. The rotating shaft 730 is horizontally slidably connected to the circulation assembly 600 on a plurality of movable frames 500.

[0072] In this embodiment, when the packaging board needs to be conveyed, the motor B710 drives the rotating shaft 730 to rotate via the transmission belt B720. The rotating shaft 730 drives the circulating components 600 on multiple moving frames 500 to rotate synchronously. The multiple circulating components 600 drive the pressure control mechanism 900 on them to rotate synchronously. The pressure control mechanism 900 can effectively convey the packaging board it contacts below through the cyclic rotation, so that it enters the feeding end of the printing press stably and efficiently, meeting the device's conveying needs for diverse packaging boards, significantly improving the device's conveying efficiency and conveying quality, and thus improving the printing efficiency of the printing press.

[0073] like Figures 2 to 7 As shown, in a preferred embodiment of the present invention, the circulation assembly 600 includes a synchronous pulley A610, a synchronous pulley B620, a synchronous belt 630, and a sleeve 660. The synchronous pulley A610 is rotatably mounted on one end of the movable frame 500, and the synchronous pulley B620 is disposed on the other end of the movable frame 500 and is horizontally slidably connected to the rotating shaft 730. Grooves 650 are formed on both sides of the synchronous pulley B620, and bearings are installed in the grooves 650. The sleeves 660 are distributed on both sides of the synchronous pulley B620. One end of the sleeve 660 is connected to the bearing, and the other end of the sleeve 660 is fixed to the other end of the movable frame 500. The two ends of the synchronous belt 630 are respectively sleeved on the outside of the synchronous pulley A610 and the synchronous pulley B620 and respectively mesh with the synchronous pulley A610 and the synchronous pulley B620. The synchronous belt 630 preferably adopts a U-shaped belt structure. The outer wall of the synchronous belt 630 is connected to the pressure control mechanism 900, and the synchronous belt 630 is provided with mounting holes 640 for fixing the pressure control mechanism 900.

[0074] In this embodiment, the rotating shaft 730 drives the synchronous pulleys B620 on multiple movable frames 500 to rotate. The synchronous pulleys B620, in cooperation with the synchronous pulleys A610, can drive the synchronous belt 630 to rotate cyclically on the movable frame 500. The synchronous belt 630 drives the pressure control mechanism 900 on it to rotate cyclically, so that the pressure control mechanism 900 can effectively transport the packaging and make it enter the feeding end of the printing machine stably and efficiently.

[0075] like Figures 2 to 7As shown, in a preferred embodiment of the present invention, the pressure control mechanism 900 includes a hose 910, a connecting pipe 920, an air inlet pipe 930, and a pressure control device 940. The pressure control device 940 is sleeved on the outside of the synchronous belt 630, and the inner side of the pressure control device 940 is fixedly connected to the synchronous belt 630 through the mounting hole 640. An air inlet 950 is provided on the outer side of the pressure control device 940. The hose 910 is arranged above the moving frame 500 and is connected to the connecting pipe 920. One end of the hose 910 is connected to the output end of the pneumatic conveying device. The connecting pipe 920 is vertically slidably mounted on the moving frame 500, and the bottom end of the connecting pipe 920 intermittently cooperates with the air inlet 950 on the pressure control device 940.

[0076] like Figures 2 to 7 As shown, in a preferred embodiment of the present invention, the pressure control device 940 preferably adopts a strip structure with an elliptical cross section. The pressure control device 940 preferably adopts a material with good elasticity and wear resistance, and the end face of the pressure control device 940 that contacts the packaging board has a high coefficient of friction. This can ensure that the pressure control device 940 can effectively transport the packaging board.

[0077] In this embodiment, the pneumatic conveying device, through the hose 910 and connecting pipe 920, can not only pressurize external gas into the pressure control unit 940, causing the pressure control unit 940 to expand on the synchronous belt 630, but also draw gas from the pressure control unit 940 to the outside, causing it to contract on the synchronous belt 630. This changes the distance between the outer side of the pressure control unit 940 and the device base 100, allowing the outer side of the pressure control unit 940 to effectively contact the surfaces of packaging boards of different thicknesses. This ensures that the pressure control unit 940 can efficiently and stably convey the packaging boards it contacts to the printing press during its cyclic rotation, meeting the device's conveying needs for diverse packaging boards, significantly improving the device's conveying efficiency and quality, and thus improving the printing efficiency of the printing press.

[0078] In a preferred embodiment, the pressure control device 940, through gas conveying or gas discharge, can not only meet the needs of conveying the packaging board, but also reduce the damage to the surface of the packaging board, ensure the overall aesthetics of the packaging board, and reduce the production scrap rate of the packaging board.

[0079] like Figures 1 to 4 As shown, in a preferred embodiment of the present invention, the drive assembly 410 includes a motor A411 and a transmission belt A412. The motor A411 is fixed at one end of the device base 100, and the output end of the motor A411 is connected to a horizontal guide post 300 with a threaded tooth 310 at one end through the transmission belt A412.

[0080] In this embodiment, when it is necessary to effectively limit and transport packaging boards of different specifications, the motor A411 drives the transmission belt A412 to rotate. The transmission belt A412 drives a horizontal guide post 300 with a threaded tooth 310 at one end to be connected. The horizontal guide post 300 with a threaded tooth 310 at one end drives a movable frame 500 at the end to slide through the screw sleeve 520. The movable frame 500 at the end can drive the other movable frames 500 to slide synchronously and equidistantly through the equidistant connecting rod assembly 420, thereby changing the distance between two adjacent movable frames 500 at equal distances. Multiple movable frames 500 simultaneously drive the circulating assembly 600 on it and the limiting guide mechanism 800 on one side to move at equal distances.

[0081] Multiple circulation components 600 drive the pressure control mechanism 900 on them to move at equal distances. Through the equal distance movement of the circulation components 600 and the pressure control mechanism 900, packaging boards of different specifications can be effectively pressed and conveyed, so that they can enter the feeding end of the printing press stably and efficiently, meet the conveying needs of the device for diverse packaging boards, significantly improve the conveying efficiency and conveying quality of the device, and thus improve the printing efficiency of the printing press.

[0082] The limiting and guiding mechanism 800 can effectively limit and guide the side walls of packaging boards of different specifications by moving at equal distances, avoiding deviation of the packaging boards during the conveying process, ensuring the accuracy of the angle when the packaging boards enter the printing press, improving the printing quality of the packaging boards, and reducing the printing scrap rate.

[0083] like Figures 1 to 4 As shown, in a preferred embodiment of the present invention, the equidistant linkage assembly 420 includes a mounting post 421, a connecting rod A422, and a connecting rod B423. The mounting post 421 is fixed to the top of the movable frame. The middle part of the connecting rod A422 is rotatably mounted on the mounting post 421. The two ends of one connecting rod A422 are respectively rotatably connected to connecting rods A422 on adjacent movable frames 500. The connecting rod A422 on the initial movable frame 500 is rotatably connected to a connecting rod B423 rotatably mounted on a side frame 200. The length of the connecting rod B423 is half the length of the connecting rod A422.

[0084] In this embodiment, a horizontal guide post 300 with a threaded tooth 310 at one end drives a movable frame 500 at its end to slide through a threaded sleeve 520. The movable frame 500 at the end drives the connecting rod A422 on it to rotate. The connecting rod A422 at the end drives the connecting rod A422 connected to it to rotate in the opposite direction. Similarly, the connecting rods A422 on multiple movable frames 500 all rotate, thereby driving multiple movable frames 500 to slide synchronously at equal distances, thereby changing the distance between two adjacent movable frames 500 at equal distances. Multiple movable frames 500 simultaneously drive the circulating component 600 on it and the limiting guide mechanism 800 on one side to move at equal distances.

[0085] The working principle of this invention is:

[0086] The installation angle of the collar 820 on the fixed post 810 can be changed by the set screw, allowing the collar 820 to rotate on the fixed post 810. This rotation of the collar 820 drives the vertical height of the limiting guide wheel 870, enabling the limiting guide wheel 870 to move vertically and contact the sidewalls of packaging boards of different thicknesses, thus effectively limiting and guiding the packaging boards of varying thicknesses. Simultaneously, the angle of the adjusting post B840 and the limiting post 850 can be changed by the adjusting screw 860. The adjusting post B840 can rotate along the axis of the adjusting post A830, and the limiting post 850 can rotate along the axis of the adjusting post B840, thereby changing the position and angle of the limiting guide wheel 870. This allows the limiting guide wheel 870 to effectively limit and guide the non-flat sidewalls of the packaging board, thus satisfying the need for effective guidance and limiting of irregularly shaped sidewalls of non-standard packaging boards.

[0087] When the packaging board needs to be conveyed, the motor B710 drives the rotating shaft 730 to rotate via the transmission belt B720. The rotating shaft 730 drives the synchronous pulleys B620 on multiple moving frames 500 to rotate. The synchronous pulleys B620, in cooperation with the synchronous pulleys A610, can drive the synchronous belt 630 to rotate cyclically on the moving frame 500. The synchronous belt 630 drives the pressure control mechanism 900 on it to rotate cyclically. The pressure control mechanism 900 can effectively convey the packaging board it contacts below through cyclic rotation, so that it enters the feeding end of the printing press stably and efficiently.

[0088] The pneumatic conveying equipment, through the hose 910 and connecting pipe 920, can not only compress external gas into the pressure control unit 940, causing the pressure control unit 940 to expand on the synchronous belt 630, but also draw gas from the pressure control unit 940 to the outside, causing it to contract on the synchronous belt 630. This changes the distance between the outer side of the pressure control unit 940 and the device base 100, allowing the outer side of the pressure control unit 940 to effectively contact the surface of packaging boards of different thicknesses. This ensures that the pressure control unit 940 can efficiently and stably convey the packaging boards it contacts into the printing machine during its cyclic rotation.

[0089] When it is necessary to effectively limit and transport packaging boards of different specifications, motor A411 drives transmission belt A412 to rotate. Transmission belt A412 drives horizontal guide post 300 with threaded teeth 310 at one end. Horizontal guide post 300 with threaded teeth 310 at one end drives a movable frame 500 at the end to slide through screw sleeve 520. The movable frame 500 at the end drives the connecting rod A422 on it to rotate. The connecting rod A422 at the end drives the connecting rod A422 connected to it to rotate in the opposite direction. Similarly, the connecting rods A422 on multiple movable frames 500 all rotate, thereby driving multiple movable frames 500 to slide synchronously and equidistantly, thereby changing the distance between two adjacent movable frames 500 equidistantly. Multiple movable frames 500 simultaneously drive the circulation component 600 on it and the limiting guide mechanism 800 on one side to move equidistantly.

[0090] Multiple circulation components 600 drive the pressure control mechanism 900 on them to move at equal intervals. Through the equidistant movement of the circulation components 600 and the pressure control mechanism 900, packaging boards of different specifications can be effectively pressed and conveyed, allowing them to enter the feed end of the printing press stably and efficiently. This meets the device's diverse packaging board conveying needs, significantly improving the device's conveying efficiency and quality, and thus increasing the printing efficiency of the printing press. The limiting and guiding mechanism 800, through equidistant movement, can effectively limit and guide the side walls of packaging boards of different specifications, preventing the packaging boards from shifting during the conveying process. This ensures the accuracy of the angle when the packaging boards enter the printing press, improves the printing quality of the packaging boards, and reduces the printing scrap rate.

[0091] The above describes the working principle of the limiting conveyor device of the packaging container printing machine.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A limiting conveying device for a packaging container printing machine, comprising a device base disposed on one side of the feeding end of the printing machine, packaging plates arranged at equal intervals on the device base, side frames fixed at both ends of the device base, two horizontal guide columns installed between the two side frames, and movable frames arranged at equal intervals between the two side frames, wherein lifting lugs are fixed on the movable frames and slidably engage with the two horizontal guide columns, and a threaded sleeve is fixed inside the lifting lug on one of the movable frames at the end, the threaded sleeve engaging with a threaded tooth provided at one end of a horizontal guide column, characterized in that... Also includes: An equidistant adjustment mechanism includes a drive assembly and an equidistant linkage assembly. The drive assembly is installed at one end of the device base and connected to a horizontal guide post with threaded teeth at one end. One end of the equidistant linkage assembly is connected to a plurality of movable frames, and the other end of the equidistant linkage assembly is connected to a side frame located at the beginning end. A circulation mechanism, comprising a rotating component and a circulation component, wherein the rotating component is mounted at the other end of the device base and connected to the circulation component, and the circulation component is mounted within a movable frame and located above the packaging plate; A pressure control mechanism, one end of which is mounted on a movable frame, and the other end of which is located on a circulation assembly; The limiting guide mechanism is symmetrically installed at both ends of one side of the movable frame. The limiting guide mechanisms on two adjacent movable frames are respectively set on both sides of the circulation component on the two movable frames. The bottom of the two adjacent limiting guide mechanisms respectively abuts against the side walls of the packaging plate. The drive assembly drives a movable frame located at the end to slide on a horizontal guide post. The movable frame located at the end drives the remaining movable frames to slide synchronously and equidistantly through the equidistant linkage assembly and change the distance between two adjacent movable frames equidistantly. Multiple movable frames simultaneously drive the circulation assembly on them and the limiting guide mechanism on one side to move equidistantly. Multiple circulating components drive the pressure control mechanism on them to move at equal distances. The circulating components and the pressure control mechanism effectively press and convey packaging boards of different specifications through equal distance movement. Multiple moving frames synchronously drive the limiting and guiding mechanisms on one side to move at equal distances. The two limiting and guiding mechanisms on both sides of the circulating components on two adjacent moving frames move closer to each other and further away from each other. The two limiting and guiding mechanisms effectively limit and guide packaging boards of different specifications by moving closer to each other and further away from each other. At the same time, the limiting and guiding mechanisms effectively limit and guide packaging boards of different thicknesses and effectively guide and limit the irregular side walls of non-standard packaging boards by changing their own angle.

2. The limiting conveying device for a packaging container printing machine according to claim 1, characterized in that, The limiting and guiding mechanism includes: Fixed columns on both ends of the same side of the mobile frame; A collar installed on a fixed post via a set screw; Adjusting post A is vertically fixed on the outer wall of the collar; Adjust column B is vertically mounted on one end of adjusting column A using an adjusting screw; The upper limit post is vertically installed at one end of the adjusting post B by adjusting the screw; and Rotate the limiting guide wheel installed on one end of the limiting post, and the limiting guide wheel abuts against the side wall of the packaging plate.

3. The limiting conveying device for a packaging container printing machine according to claim 1, characterized in that, The rotating component includes: Motor B is fixed to the other end of the device base; and A rotating shaft is rotatably mounted on two side frames at both ends. One end of the rotating shaft is connected to the output end of the motor via a transmission belt B. The rotating shaft is horizontally slidably connected to a circulating assembly on multiple movable frames.

4. The limiting conveying device for a packaging container printing machine according to claim 3, characterized in that, The loop component includes: Rotate the synchronous wheel A, which is mounted on one end of the mobile frame; A synchronous wheel B is set on the other end of the mobile frame. The synchronous wheel B is horizontally slidably connected to the rotating shaft. Grooves are provided on both sides of the synchronous wheel B, and bearings are installed in the grooves. Sleeves distributed on both sides of synchronous pulley B and fixedly connected to the other end of the movable frame, one end of each sleeve being connected to a bearing; and A synchronous belt is fitted onto the outside of synchronous pulleys A and B at both ends. The two ends of the synchronous belt are engaged with synchronous pulleys A and B respectively. The synchronous belt adopts a U-shaped belt structure. The outer wall of the synchronous belt is connected to the pressure control mechanism, and the synchronous belt has mounting holes for fixing the pressure control mechanism.

5. The limiting conveying device for a packaging container printing machine according to claim 4, characterized in that, The pressure control mechanism includes: A pressure control device is fitted onto the outside of the timing belt. The inner side of the pressure control device is fixedly connected to the timing belt through a mounting hole, and an air inlet is provided on the outer side of the pressure control device. A flexible hose installed on a mobile frame, one end of which is connected to the output end of a pneumatic conveying device; and A connecting pipe is vertically slidably mounted on a movable frame. The connecting pipe is connected to a flexible hose, and the bottom end of the connecting pipe intermittently engages with the air inlet on the pressure control device.

6. The limiting conveying device for a packaging container printing machine according to claim 5, characterized in that, The pressure control device adopts a strip structure with an elliptical cross-section. The pressure control device is made of a material with good elasticity and wear resistance, and the end face of the pressure control device that contacts the packaging board has a high coefficient of friction.

7. The limiting conveying device for a packaging container printing machine according to claim 1, characterized in that, The driving component includes: A motor A is fixed to one end of the device base. The output end of the motor A is connected to a horizontal guide post with threaded teeth at one end via a transmission belt A.

8. The limiting conveying device for a packaging container printing machine according to claim 1, characterized in that, The equidistant link assembly includes: Mounting post fixed to the top of the mobile frame; A connecting rod A is rotatably mounted on a mounting column in the middle, and both ends of one connecting rod A are rotatably connected to connecting rods A on adjacent movable frames; and A link B is rotatably mounted on a side frame located at the beginning. The link B is rotatably connected to a link A on an adjacent movable frame. The length of the link B is half the length of the link A.

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