Environment-friendly printing mechanical equipment for carton production

Abstract

The environment-friendly printing mechanical equipment for carton production comprises two sliding rails and a drying part, the drying part comprises a frame body, two side threaded rods, an annular pipe, a long telescopic rod, a motor, a recycling fan, an air heater, a first bevel gear and a second bevel gear, and limiting plates are slidably arranged on the two sides of the inner bottom face of the frame body; and pressing plates are slidably arranged on the end faces of the two limiting plates correspondingly, the outer ends of the two side threaded rods are sleeved with telescopic threaded blocks in a threaded mode correspondingly, four recycling grooves are formed in the inner bottom face of the frame body, and inclined hole plates are fixedly arranged on the upper sides of the inner walls of the four recycling grooves correspondingly. Through cooperation of the recovery fan and the recovery tank, hot air can be recovered to preheat inlet air of the hot air blower, energy consumption is reduced, the environmental protection effect is improved, and through control over the long telescopic rod and the internal telescopic rod, connection with the first column casing and the second column casing can be disconnected at any time, so that the threaded rod and the threaded column are controlled separately.

Description

Technical Field

[0001] This invention relates to the field of printing machinery and equipment technology, and more specifically, to an environmentally friendly printing machinery and equipment for paper box production. Background Technology

[0002] Paper box packaging occupies a core position in many fields such as food and medicine due to its cost-effectiveness and recyclability, and is an important part of the global packaging market. With the rapid development of e-commerce, the demand for paper box packaging continues to grow. Different merchants need to print different patterns and texts on the surface of the paper boxes, which requires the use of environmentally friendly printing machinery and equipment. The printing equipment accurately replicates text and patterns onto various substrates through different methods, and the environmentally friendly printing machinery and equipment uses a low-pollution material.

[0003] Most existing businesses use inkjet printers, which spray ink onto cardboard in a regular pattern to form designs and text. However, the cardboard is stacked after spraying, which can easily cause undried ink stains to adhere and damage the integrity of the designs and text. Furthermore, simply using hot air to blow ink without a recycling mechanism will result in energy waste. To solve these problems, this application proposes a new type of environmentally friendly printing machinery for cardboard box production. Summary of the Invention

[0004] The purpose of this invention is to provide an environmentally friendly printing machinery and equipment for paper box production, so as to solve the problems mentioned in the background art above: To achieve the above objectives, the present invention provides the following technical solution: An environmentally friendly printing machinery for paper box production includes two slide rails and a drying section. The drying section includes a frame body, two side threaded rods, a ring tube, a long telescopic rod, a motor, a recycling fan, a hot air blower, a first bevel gear and a second bevel gear. Limiting plates are slidably arranged on both sides of the inner bottom surface of the frame body. Pressing plates are slidably arranged on the end faces of the two limiting plates. Telescopic threaded blocks are threadedly sleeved on the outer ends of the two side threaded rods. The frame body has four recycling troughs on its inner bottom surface. Each of the four recycling troughs has a fixed inclined plate on the upper side of its inner wall. Four flexible tubes are connected between the ring tube and the two clamping plates. A first cylindrical tube is fixedly installed on the opposite end face of each of the two first bevel gears, a second cylindrical tube is fixedly installed on the lower end face of each of the two second bevel gears, an internal telescopic rod is fixedly installed on the upper inner wall of each of the two side threaded rods, and a vertical locking post is fixedly installed at the output end of each of the two internal telescopic rods.

[0005] By adopting the above technical solution, the limiting plate will move towards the center to limit the position of the cardboard during transmission, and the side threaded rod will drive the pressing plate to descend and press on the cardboard through the telescopic threaded block, so as to prevent the cardboard from jumping during transmission. The pressing plate is positioned above the cardboard, and the hot air it blows will blow directly onto the surface of the cardboard, resulting in better drying. Moreover, the hot air blown out will pass through the holes in the inclined plate and enter the recycling tank, achieving heat recovery and reducing energy consumption. Activating the long telescopic rod allows both ends to be inserted into the threaded column, enabling the motor to drive the threaded column to rotate. Activating the inner telescopic rod allows the locking pin to extend into the second cylinder, enabling the first bevel gear to drive the second bevel gear to rotate, which in turn drives the side threaded rod to rotate, facilitating separate control.

[0006] Preferably, a conveying part is slidably disposed between the two slide rails, two printing parts are slidably disposed between the two slide rails, and a cutting part is slidably disposed between the two slide rails.

[0007] By adopting the above technical solution, the cardboard of the conveying unit is printed in the printing department, and after the printing ink is dried in the drying department, it is cut into shape by the cutting department.

[0008] Preferably, a power roller set is embedded in the middle of the inner bottom surface of the frame body, and auxiliary roller sets are provided on both sides of the inner bottom surface of the frame body.

[0009] By adopting the above technical solution, the cardboard is powered by the power roller group inside the frame body, while the friction is reduced by the auxiliary roller group.

[0010] Preferably, bottom grooves are formed on both sides of the inner bottom surface of the frame body, and bottom blocks are slidably arranged inside the two bottom grooves. Top grooves are formed on both sides of the inner top surface of the frame body, and upper threaded blocks are slidably arranged on the inner walls of the two top grooves. Side grooves are formed on both inner walls of the frame body. Moving grooves are formed in the middle of the end faces of the two limiting plates, and sliders are slidably arranged inside the two moving grooves. Connecting blocks are provided between the two sliders and the two telescopic threaded blocks.

[0011] By adopting the above technical solution, the threaded column drives the upper threaded block to move inside the top groove, thereby driving the limiting plate to move and realize the position determination. Moreover, the threaded telescopic rod is connected to the slider through the connecting block, and the slider controls the pressing plate, thereby controlling the height of the pressing plate.

[0012] Preferably, an inner groove is provided inside the lower side of the frame body, and multiple vertical grooves are provided on the bottom surface of the inner groove. A lower groove is provided on the lower end surface of the multiple vertical grooves. A connecting groove is provided between the inner groove and the four recycling grooves. An air inlet groove is provided on the front and rear sides of the inner wall of one side of the inner groove.

[0013] By adopting the above technical solution, the hot air inside the recovery tank will enter the inner tank through the connecting groove, and the hot air inside the inner tank will pass through the vertical groove into the recovery tank to wait for the next use, thus achieving heat energy recovery and reducing energy consumption.

[0014] Preferably, the recycling fan is located inside the inner tank, the hot air blower is located on the bottom surface of the lower tank, the hot air blower and the ring pipe are connected by a pipe, and multiple air outlet pipes are fixedly installed on the opposite side end faces of the two clamping plates.

[0015] By adopting the above technical solution, the hot air blower extracts gas and converts it into hot air, which is then transmitted to the outlet pipe and then delivered to the inner wall of the pressure plate through a hose, making it convenient to dry the printing area.

[0016] Preferably, the inner walls of the two top grooves on opposite sides are provided with placement grooves, the motor is disposed in one of the placement grooves, the two first bevel gears and the two second bevel gears are respectively disposed in the two placement grooves, the two first bevel gears are respectively meshed with the two second bevel gears, and the output end of the motor is connected to one of the first bevel gears.

[0017] By adopting the above technical solution, the motor controls the first bevel gear, which in turn controls the rotation of the long telescopic rod and the second bevel gear, thereby realizing the transmission of power.

[0018] Preferably, the two threaded rods are respectively sleeved on both ends of the long telescopic rod, and the upper ends of the two side threaded rods are respectively set on the lower inner wall of the two second column cylinders.

[0019] By adopting the above technical solution, the threaded column will rotate at both output ends of the long telescopic rod, while the second column will rotate at the outer end of the side threaded rod.

[0020] Preferably, each of the two threaded columns has a limiting groove on its opposite end face, and four horizontal limiting blocks are fixedly installed on the inner wall of each of the two limiting grooves. Multiple horizontal contraction grooves are installed on the outer ends of both sides of the long telescopic rod. Horizontal locking blocks are slidably installed inside each of the multiple horizontal contraction grooves. Two first push springs are installed between each of the multiple horizontal locking blocks and the multiple horizontal contraction grooves.

[0021] By adopting the above technical solution, when the long telescopic rod retracts, it will drive the horizontal retraction groove to the area of ​​the limiting groove, and the first push spring will push the horizontal locking block to pop out and engage with the horizontal limiting block to achieve control of the threaded column.

[0022] Preferably, each of the two second column inner walls is provided with four vertical limiting blocks, each of the two vertical locking columns has four vertical contraction grooves at its outer end, each of the four vertical contraction grooves has a vertical locking block slidably disposed on its inner wall, and each of the four vertical locking blocks and the four vertical contraction grooves is provided with two second push springs.

[0023] By adopting the above technical solution, when the inner telescopic rod pushes the vertical locking column, the vertical contraction groove will reach the position of the vertical limiting block, and the second pushing spring will push out the vertical locking block and engage with the opposite threaded rod for control.

[0024] Compared with the prior art, the beneficial effects of the present invention are: 1) When this printing machinery is in use, before the paperboard is conveyed to the drying section, the limiting plate will move towards the center to restrict the paperboard, and the pressing plate on the limiting plate will descend to restrict the top of the paperboard, ensuring the stability of the paperboard transmission.

[0025] 2) When this printing machinery is in use, the hot air machine will deliver air through a hose to the inner wall of the pressure plate, and blow it onto the cardboard through the pressure plate. The pressure plate controls the hot air to be blown stably onto the printing area. Moreover, the hot air can be recovered and preheated by the hot air machine through the cooperation of the recovery fan and the recovery tank, which reduces energy consumption and improves environmental protection.

[0026] 3) When using this printing machinery, the connection with the first and second cylinders can be disconnected at any time by controlling the long telescopic rod and the internal telescopic rod, which facilitates separate control of the side threaded rod and threaded column, and avoids the motor stacking which makes the connecting wires difficult to manage. Attached Figure Description

[0027] Figure 1 This is an isometric view of the present invention; Figure 2 This is a first axial side view of the drying section of the present invention; Figure 3 This is a schematic diagram of the second axial side of the drying section of the present invention; Figure 4 This is a first axial side view of the drying section of the present invention; Figure 5 This is a second axial side view of the drying section of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A; Figure 7 This is an axial view of the hose connection of the present invention; Figure 8 This is a schematic diagram of the meshing of the first and second bevel gears of the present invention. Figure 9 This is a bottom-view axial side view of the second cylindrical section of the present invention; Figure 10 This is an axial side view of the vertical clip column of the present invention.

[0028] Explanation of the numbers in the diagram: 1. Slide rail; 2. Conveying section; 3. Printing section; 4. Drying section; 5. Cutting section; 401. Main frame; 402. Power roller assembly; 403. Auxiliary roller assembly; 404. Limiting plate; 405. Bottom groove; 406. Side groove; 407. Telescopic threaded block; 408. Connecting block; 409. Slider; 410. Pressing plate; 411. Hoses; 412. Inclined hole plate; 413. Air inlet groove; 414. Air outlet pipe; 415. Top groove; 416. Moving groove; 417. Connecting groove; 418. Ring pipe; 419. Recycling groove; 420. Long telescopic rod; 421. Placement groove; 422. Thread 423. Threaded column; 424. Upper threaded block; 425. Motor; 426. Internal telescopic rod; 427. Side threaded rod; 428. Bottom block; 429. Inner groove; 430. Recovery fan; 431. Hot air blower; 432. Vertical groove; 433. Lower groove; 434. Horizontal limiting block; 435. Limiting groove; 436. Horizontal locking block; 437. First push spring; 438. First column cylinder; 439. Vertical locking block; 440. First bevel gear; 441. Second bevel gear; 442. Second column cylinder; 443. Vertical limiting block; 444. Vertical locking column; 445. Vertical shrinkage groove; 446. Second push spring. Detailed Implementation

[0029] Example 1, please refer to Figures 1 to 10 An environmentally friendly printing machinery for paper box production includes two slide rails 1 and a drying section 4. The drying section 4 includes a frame body 401, two side threaded rods 426, a ring pipe 418, a long telescopic rod 420, a motor 424, a recycling fan 429, a hot air blower 430, a first bevel gear 440 and a second bevel gear 441. Limiting plates 404 are slidably arranged on both sides of the inner bottom surface of the frame body 401. A pressing plate 410 is slidably arranged on the end face of the two limiting plates 404. A telescopic threaded block 407 is threadedly sleeved on the outer end of the two side threaded rods 426. The limiting plates 404 restrict the accuracy of the paperboard transmission position, while the side threaded rods 426 drive the pressing plate 410 to descend and press on the paperboard, preventing the paperboard from jumping.

[0030] Specifically, a conveying unit 2 is slidably arranged between the two slide rails 1, two printing units 3 are slidably arranged between the two slide rails 1, a cutting unit 5 is slidably arranged between the two slide rails 1, a power roller group 402 is embedded in the middle of the bottom surface of the frame body 401, auxiliary roller groups 403 are arranged on both sides of the bottom surface of the frame body 401, bottom grooves 405 are opened on both sides of the bottom surface of the frame body 401, bottom blocks 427 are slidably arranged inside the two bottom grooves 405, top grooves 415 are opened on both sides of the top surface of the frame body 401, upper threaded blocks 423 are slidably arranged on the inner walls of the two top grooves 415, side grooves 406 are opened on both sides of the inner walls of the frame body 401, a moving groove 416 is opened in the middle of the end face of the two limiting plates 404, a slider 409 is slidably arranged inside the two moving grooves 416, and a connecting block 408 is arranged between the two sliders 409 and the two telescopic threaded blocks 407.

[0031] Furthermore, the slider 409 is fixedly connected to the opposite end face of the pressing plate 410, the telescopic threaded block 407 is a bamboo joint telescopic setting, and a threaded hole is opened on the outermost shell. The conveying part 2 is set in the first position, the two printing parts 3 are set behind the conveying part 2, the drying part 4 is set behind the printing part 3, the cutting part 5 is set behind the drying part 4, the power roller columns are set in groups of five and connected to each other through a power structure control, the auxiliary roller group 403 is set in groups of five, the bottom block 427 is fixedly set in the middle position of the lower end face of the limiting plate 404, the upper threaded block 423 is fixedly set in the middle position of the upper end face of the limiting plate 404, the side threaded rod 426 is rotatably set in the inner bottom surface of the side groove 406, and the telescopic threaded block 407 is slidably set inside the side groove 406.

[0032] The steps of using this invention are as follows: After the width of the cardboard is determined by the conveying unit 2, the drying unit 4 is notified to make adjustments. The motor 424 drives the threaded column 422 to rotate. The threaded column 422 drives the limiting plate 404 to move towards the center through the upper threaded block 423 to adjust the distance. When the limiting plate 404 moves, it will drive the telescopic threaded block 407 to telescopically extend and retract. After the distance is adjusted, the side threaded rod 426 drives the telescopic threaded block 407 to slide inside the side groove 406. The telescopic threaded block 407 is connected to the slider 409 through the connecting block 408. The slider 409 is fixedly connected to the pressing plate 410, so that the pressing plate 410 can be driven to descend to achieve height restriction. The cardboard that reaches the inside of the frame body 401 is transported by the power roller group 402 and assisted by the auxiliary roller group 403.

[0033] Example 2, please refer to Figures 2 to 5 , Figure 7The difference from Embodiment 1 is that four recycling troughs 419 are provided on the bottom surface of the frame body 401. An inclined perforated plate 412 is fixedly installed on the upper side of the inner wall of each of the four recycling troughs 419. Four flexible hoses 411 are connected between the ring pipe 418 and the two pressing plates 410. The blown hot air will pass through the holes on the inclined perforated plate 412 and enter the interior of the recycling trough 419, so as to achieve heat recovery and reduce energy consumption.

[0034] Specifically, an inner groove 428 is provided inside the lower side of the frame body 401. Multiple vertical grooves 431 are provided on the bottom surface of the inner groove 428. A lower groove 432 is provided on the lower end surface of the multiple vertical grooves 431. A connecting groove 417 connects the inner groove 428 and the four recycling grooves 419. An air inlet groove 413 is provided on the front and rear sides of the inner wall of one side of the inner groove 428. A recycling fan 429 is installed inside the inner groove 428. A hot air blower 430 is installed on the bottom surface of the lower groove 432. The hot air blower 430 and the ring pipe 418 are connected by a pipe. Multiple air outlet pipes 414 are fixedly installed on the opposite end faces of the two clamping plates 410.

[0035] Furthermore, the holes on the inclined perforated plate 412 are inclined to both sides, the inner groove 428 is opened in the middle position of the lower side of the frame body 401, the connecting groove 417 is opened at the four corner positions of the lower side of the inner groove 428, the air inlet groove 413 is opened along the inner bottom surface of the inner groove 428, the recovery fan 429 is set in the middle position inside the inner groove 428, and the ring pipe 418 is embedded in the lower inner wall of the frame body 401 and surrounds the lower groove 432.

[0036] The invention operates as follows: A hot air blower 430 draws gas from the outside and converts it into hot air. This drawn gas enters the inner groove 428 through the air inlet 413 and then enters the lower groove 432 through the vertical groove 431. The initial gas is at normal temperature. The gas produced by the hot air blower 430 is transported through a pipe to the inside of the ring pipe 418, and then through a hose 411 to the inner wall of the pressure plate 410. Finally, it is sprayed from the air outlet 414 on the pressure plate 410 onto the surface of the cardboard, thus printing on the cardboard surface. The ink is dried, and the hot air that is sprayed will slowly remain inside the frame body 401 and eventually dissipate. However, the recovery fan 429 inside the inner tank 428 can be activated to draw air from the connecting slot 417, so that the gas passes through the inclined plate 412 and enters the recovery slot 419. Finally, it passes through the connecting slot 417 and enters the inner tank 428. This hot air will neutralize the outside air entering from the air inlet slot 413, thereby playing a preheating role and reducing the energy consumption generated by the hot air blower 430 when converting hot air. Example 3, please refer to Figures 5 to 10The difference from embodiment 2 is that a first cylinder 438 is fixedly provided on the opposite end face of each of the two first bevel gears 440, a second cylinder 442 is fixedly provided on the lower end face of each of the two second bevel gears 441, an internal telescopic rod 425 is fixedly provided on the upper inner wall of each of the two side threaded rods 426, and a vertical locking post 444 is fixedly provided at the output end of each of the two internal telescopic rods 425. The threaded post 422 and the side threaded rod 426 can be controlled separately through the long telescopic rod 420 and the internal telescopic rod.

[0037] Specifically, each of the two top grooves 415 has a placement groove 421 on its opposite inner wall. A motor 424 is installed inside one of the placement grooves 421. Two first bevel gears 440 and two second bevel gears 441 are respectively installed inside the two placement grooves 421, with the two first bevel gears 440 meshing with the two second bevel gears 441. The output end of the motor 424 is connected to one of the first bevel gears 440. Two threaded rods 422 are respectively fitted onto both ends of the long telescopic rod 420. The upper ends of two side threaded rods 426 are respectively installed on the lower inner wall of the two second cylindrical tubes 442. Each of the two threaded rods 422 has a limiting groove 434 on its opposite end face. Four horizontal limiting blocks 433 are fixedly installed on the inner wall of the groove 434. Multiple horizontal contraction grooves 435 are opened on both outer ends of the long telescopic rod 420. Horizontal locking blocks 436 are slidably installed inside the multiple horizontal contraction grooves 435. Two first push springs 437 are installed between the multiple horizontal locking blocks 436 and the multiple horizontal contraction grooves 435. Four vertical limiting blocks 443 are installed on the upper inner wall of the two second column cylinders 442. Four vertical contraction grooves 445 are opened on the outer ends of the two vertical locking columns 444. Vertical locking blocks 439 are slidably installed on the inner wall of the four vertical contraction grooves 445. Two second push springs 446 are installed between the four vertical locking blocks 439 and the four vertical contraction grooves 445.

[0038] Furthermore, the first column 438 is rotatably mounted on the inner wall of the placement groove 421, the vertical locking column 444 is slidably mounted on the lower inner wall of the second column 442, the horizontal limiting block 433 and the vertical limiting block 443 are both set as quarter-arc blocks, and the horizontal locking block 436 and the vertical locking block 439 are both set as arc-shaped heads. The two ends of the long telescopic rod 420 are telescopically connected to the two first column 438 respectively, and the locking blocks are slidably mounted between the limiting blocks. The horizontal contraction groove 435 is set in groups of four, and the two groups are respectively set at the two ends of the long telescopic rod 420. The vertical contraction groove 445 and the horizontal contraction groove 435 are equidistant.

[0039] The steps of using this invention are as follows: When the threaded column 422 is to be rotated, the long telescopic rod 420 is activated to move both ends towards the middle, so that the transverse contraction groove 435 reaches the position of the limiting groove 434. The first push spring 437 is always pushing the transverse locking block 436. When the motor 424 drives the long telescopic rod 420 to rotate through the first bevel gear 440, it will drive the transverse locking block 436 to rotate, so that the transverse locking block 436 rotates between the two transverse limiting blocks 433. At this time, the first push spring 437 can push the transverse locking block 436 out to lock it against the transverse limiting block 433. Tighten, thereby driving the threaded column 422 to rotate. When it is necessary to drive the side threaded rod 426 to rotate, activate the inner telescopic rod to push the vertical locking column 444, allowing the vertical locking column 444 to rise to the position of the vertical limiting block 443. The second push spring 446 pushes the vertical locking block 439 to engage between the two vertical limiting blocks 443, thereby controlling the second column cylinder 442, thereby driving the side threaded rod 426 to rotate. Because the head of the locking block in the extension direction is arc-shaped, even if it does not engage between the limiting blocks on the first attempt, it can wait for the limiting blocks to rotate and engage between them to form control.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly printing machine for paper box production, comprising two slide rails (1) and a drying section (4), characterized in that: The drying section (4) includes a frame body (401), two side threaded rods (426), a ring pipe (418), a long telescopic rod (420), a motor (424), a recovery fan (429), a hot air blower (430), a first bevel gear (440) and a second bevel gear (441). Limiting plates (404) are slidably provided on both sides of the bottom surface of the frame body (401), and pressing plates (410) are slidably provided on the end faces of the two limiting plates (404). Telescopic threaded blocks (407) are threadedly sleeved on the outer ends of the two side threaded rods (426). The frame body (401) has four recycling troughs (419) on its inner bottom surface. Each of the four recycling troughs (419) has a fixed inclined hole plate (412) on the upper side of its inner wall. Four flexible hoses (411) are connected between the ring pipe (418) and the two clamping plates (410). A first cylinder (438) is fixedly provided on the opposite end face of each of the two first bevel gears (440), a second cylinder (442) is fixedly provided on the lower end face of each of the two second bevel gears (441), an internal telescopic rod (425) is fixedly provided on the upper inner wall of each of the two side threaded rods (426), and a vertical locking post (444) is fixedly provided on the output end of each of the two internal telescopic rods (425).

2. The environmentally friendly printing machinery and equipment for paper box production according to claim 1, characterized in that: A conveying part (2) is slidably arranged between the two slide rails (1), two printing parts (3) are slidably arranged between the two slide rails (1), and a cutting part (5) is slidably arranged between the two slide rails (1).

3. The environmentally friendly printing machinery and equipment for paper box production according to claim 2, characterized in that: A power roller assembly (402) is embedded in the middle of the bottom surface of the frame body (401), and auxiliary roller assemblies (403) are provided on both sides of the bottom surface of the frame body (401).

4. The environmentally friendly printing machinery and equipment for paper box production according to claim 3, characterized in that: Bottom grooves (405) are provided on both sides of the bottom surface of the frame body (401). Bottom blocks (427) are slidably arranged inside the two bottom grooves (405). Top grooves (415) are provided on both sides of the top surface of the frame body (401). Upper threaded blocks (423) are slidably arranged on the inner walls of the two top grooves (415). Side grooves (406) are provided on both sides of the inner walls of the frame body (401). Moving grooves (416) are provided in the middle of the end faces of the two limiting plates (404). Sliding sliders (409) are slidably arranged inside the two moving grooves (416). Connecting blocks (408) are provided between the two sliding sliders (409) and the two telescopic threaded blocks (407).

5. The environmentally friendly printing machinery and equipment for paper box production according to claim 4, characterized in that: The frame body (401) has an inner groove (428) on its lower side. The bottom surface of the inner groove (428) has multiple vertical grooves (431). The lower end surface of the multiple vertical grooves (431) has a lower groove (432). The inner groove (428) and the four recycling grooves (419) are connected by a connecting groove (417). The front and rear sides of the inner wall of one side of the inner groove (428) have air inlet grooves (413).

6. The environmentally friendly printing machinery and equipment for paper box production according to claim 5, characterized in that: The recycling fan (429) is located inside the inner tank (428), the hot air blower (430) is located on the bottom surface of the lower tank (432), the hot air blower (430) and the ring pipe (418) are connected by a pipe, and multiple air outlet pipes (414) are fixedly provided on the opposite side end face of the two clamping plates (410).

7. The environmentally friendly printing machinery and equipment for paper box production according to claim 6, characterized in that: The inner walls of the two top grooves (415) on opposite sides are provided with placement grooves (421). The motor (424) is installed inside one of the placement grooves (421). The two first bevel gears (440) and the two second bevel gears (441) are respectively installed inside the two placement grooves (421). The two first bevel gears (440) are meshed with the two second bevel gears (441) respectively. The output end of the motor (424) is connected to one of the first bevel gears (440).

8. The environmentally friendly printing machinery and equipment for paper box production according to claim 7, characterized in that: A threaded column (422) is rotatably provided between the inner walls on both sides of the two top grooves (415). The two threaded columns (422) are respectively sleeved on both ends of the long telescopic rod (420). The upper ends of the two side threaded rods (426) are respectively set on the inner walls on the lower side of the two second cylinders (442).

9. An environmentally friendly printing machinery and equipment for paper box production according to claim 8, characterized in that: Each of the two threaded columns (422) has a limiting groove (434) on its opposite end face. Each of the two limiting grooves (434) has four horizontal limiting blocks (433) fixedly installed on its inner wall. Each of the two outer ends of the long telescopic rod (420) has multiple horizontal contraction grooves (435). Each of the multiple horizontal contraction grooves (435) has a horizontal locking block (436) slidably installed inside. Each of the multiple horizontal locking blocks (436) and the multiple horizontal contraction grooves (435) has two first push springs (437).

10. An environmentally friendly printing machinery and equipment for paper box production according to claim 9, characterized in that: Four vertical limiting blocks (443) are provided on the upper inner wall of each of the two second column cylinders (442), and four vertical contraction grooves (445) are provided on the outer ends of each of the two vertical locking columns (444). Vertical locking blocks (439) are slidably provided on the inner walls of the four vertical contraction grooves (445). Two second push springs (446) are provided between the four vertical locking blocks (439) and the four vertical contraction grooves (445).

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