A positioning device for a degradable and environmentally friendly packaging box

Abstract

The present invention discloses a positioning device for a degradable and environmentally friendly packaging box, and relates to the technical field of processing of degradable and environmentally friendly packaging boxes. It includes a positioning mechanism and a printing conveyor line. The positioning mechanism includes a positioning slide, a connecting groove and an adsorption head. The top of the positioning slide is provided with at least two connecting grooves and a plurality of adsorption holes located on both sides of the two connecting grooves. The adsorption head is movably connected to the inside of the adsorption hole. The number of adsorption heads is several. A docking groove is provided at the bottom of the adsorption hole. A suction joint is provided inside the docking groove. A valve cover is hinged on the top of the suction joint. By pulling the negative pressure air bag to generate suction to suck the packaging box sheet, no complicated pipelines are required, and the conductive slide cooperates with the conductive slide rail. The electric push rod inside the positioning slide does not need complicated circuit power supply. The positioning slide can be moved flexibly, and there will be no entanglement or damage of the pipelines and lines. It is more convenient to use, occupies less space and has low use cost, meeting the needs of users.

Description

Technical Field

[0001] The invention relates to the technical field of processing a degradable and environment-friendly packaging box, in particular to a positioning device for a degradable and environment-friendly packaging box. Background Art

[0002] Degradable packaging materials mainly include the following categories: Photodegradable materials: This type of material decomposes under the action of ultraviolet rays in sunlight. Photodegradable materials can gradually degrade through photolysis in the natural environment and eventually decompose into substances that are harmless to the environment. Biodegradable materials: These materials decompose under the action of microorganisms in nature and eventually decompose into carbon dioxide and water. Biodegradable materials include PBAT, PLA, etc., which are mainly composed of natural polymers such as aliphatic polyesters. Environmentally degradable materials: This type of material degrades under the action of natural environmental conditions such as light, heat, water, pollutants, microorganisms, insects, and mechanical forces. Environmentally degradable materials have a wider range of application scenarios and environmental adaptability.

[0003] The application fields of degradable packaging materials are very wide, including ordinary packaging films, shrink films, shopping bags, garbage bags, etc. After completing their service life, these materials can be degraded in the natural environment through the action of microorganisms in the soil and water or the action of ultraviolet rays in the sun, and finally re-enter the ecological environment in a reduced form. The advantage of degradable packaging materials is that they not only have the functions and characteristics of traditional plastics, but also can be degraded through the action of microorganisms or photolysis in the natural environment after completing their service life, reducing pollution to the environment.

[0004] When processing packaging boxes made of biodegradable materials, it is necessary to first print on the cut packaging box sheets, and then fold or stamp them into packaging boxes. When printing, the sheets need to be positioned, and then pass them under the printing roller to complete the printing. Existing packaging box sheet positioning devices mostly use suction cups to adsorb and position the packaging box sheets, but the existing suction cups need to be connected to the negative pressure equipment through pipelines. The pipelines are complicated and the negative pressure equipment is large in size, which not only occupies a large space but also is difficult to maintain and has high cost of use. The number of suction cups on the positioning device cannot be adjusted for adsorption of packaging box sheets of different sizes, and the versatility is low. Different sizes of packaging box sheets require different numbers of suction cups, and the matching positioning device needs to be purchased again, which further increases the manufacturing cost of the packaging box and the use effect is not ideal. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning device for a degradable and environmentally friendly packaging box, comprising a positioning mechanism and a printing conveyor line, wherein the positioning mechanism comprises a positioning slide, a connecting groove and an adsorption head, wherein the top of the positioning slide is provided with at least two connecting grooves and a plurality of adsorption holes located on both sides of the two connecting grooves, wherein the adsorption head is movably connected to the inside of the adsorption hole, wherein the number of the adsorption heads is a plurality, wherein a docking groove is provided at the bottom of the adsorption hole, wherein an air suction joint is provided inside the docking groove, and a valve cover is hingedly connected to the top of the air suction joint;

[0006] A suction cup base is movably arranged inside the suction head, a suction cup body is arranged on the top of the suction cup base, the top of the suction cup body protrudes to the outside of the suction hole, and a fixing rod for resisting the valve cover for flipping and a suction pipe with the bottom end inserted into the suction joint are arranged at the bottom of the suction head;

[0007] The positioning slide plate is provided with a driving chamber inside, a negative pressure air bag connected to the suction joint is provided inside the driving chamber, an electric push rod 1 is also provided inside the driving chamber, a pull plate is provided at the output end of the electric push rod 1, the top of the pull plate is connected to the bottom of the negative pressure air bag, an exhaust hole is provided inside the pull plate, and an electric push rod 2 for controlling the opening and closing of the exhaust hole is provided at the bottom of the pull plate;

[0008] A conductive slide is disposed on one side of the positioning slide, a driving motor is disposed at the bottom of the positioning slide, and a gear is disposed at the output end of the driving motor;

[0009] A movable hole is arranged inside the printing conveyor line, the positioning slide plate is movably arranged inside the movable hole, a conductive slide rail and a tooth groove are arranged on one side of the inner wall of the movable hole, one end of the conductive slide plate extends to the top of the conductive slide rail, and the tooth groove is meshed with the gear.

[0010] As a preferred technical solution of the present invention, an air suction cavity is provided inside the adsorption head, the bottom of the suction cup base is located inside the air suction cavity and a sealing gasket is provided between the bottom circle of the suction cup base and the inner wall of the air suction cavity, a spring is provided on the top circle of the suction cup base, and the length of the fixing rod is greater than the length of the air suction pipe.

[0011] As a preferred technical solution of the present invention, the adsorption hole is square, and operation ports are provided on both sides of the inner wall of the adsorption hole. A clamping block is provided at the bottom of the inner wall of the operation port, and the top of the clamping block extends to the interior of the adsorption head. Buckles corresponding to the two operation ports are provided on both sides of the adsorption head, one end of the buckle is clamped with the clamping block, and the other end extends to the outside of one side of the adsorption head, and a spring 2 is provided on one side of the end of the buckle clamped with the clamping block.

[0012] As a preferred technical solution of the present invention, a sealing sleeve which is sleeved with the outside of the intake pipe is arranged inside the intake joint, the valve cover is hinged to the intake joint through a torsion spring, a plurality of tension springs are arranged on the inner walls around the driving chamber, a connecting plate is arranged at one end of the tension spring away from the inner wall of the driving chamber, and the side of the connecting plate away from the tension spring is connected to one side of the negative pressure air bag.

[0013] As a preferred technical solution of the present invention, a plurality of reinforcing ribs are arranged in a circle of the inner wall of the negative pressure air bag, a valve seat corresponding to the exhaust hole is arranged at the bottom of the pull plate, a valve plate is movably arranged inside the valve seat, one end of the valve plate is connected to the output end of the electric push rod 2, and an avoidance hole corresponding to the valve seat and the electric push rod 2 is arranged at the bottom of the positioning slide plate.

[0014] As a preferred technical solution of the present invention, the bottom of the pull plate is provided with a plurality of stabilizing rods whose bottom ends extend through the bottom of the positioning slide plate, both sides of the positioning slide plate are provided with sliding grooves, both sides of the inner wall of the movable hole are provided with sliding rails, and the two sliding grooves are respectively movably connected with the two sliding rails.

[0015] As a preferred technical solution of the present invention, the interior of the positioning slide plate is provided with a positioning groove located between the two connecting grooves, a positioning seat is movably provided inside the positioning groove, a screw rod is rotatably provided inside the positioning seat, a positioning block is movably sleeved on the screw rod, the top of which passes through the positioning groove and extends to the top of the positioning slide plate, and one end of the screw rod extends to the outside of the positioning seat.

[0016] As a preferred technical solution of the present invention, a slanted block 1 is provided at the bottom of the positioning seat, and a driving rod located between two connecting grooves is movably provided inside the positioning slide plate, one end of the driving rod extends to the outside of the positioning slide plate and is provided with a sensing piece 1, and the other end extends to the inside of the positioning groove and is provided with a slanted block 2, the inclined surfaces of the slanted block 1 and the slanted block 2 are matched, and at least one movable rod is provided at the bottom of the positioning seat, the bottom end of the movable rod extends to the bottom of the inner wall of the positioning groove, and the end of the positioning slide plate away from the sensing piece 1 is provided with the sensing piece 2.

[0017] As a preferred technical solution of the present invention, at least two groups of conveying mechanisms are arranged inside the printing conveyor line, and the two groups of conveying mechanisms are respectively located on both sides of the movable hole, and the conveying mechanism includes a fixed plate and a driving seat arranged on both sides of the fixed plate, and one end of the driving seat in one group of the conveying mechanisms extends to the inside of the connecting groove, and driving wheels are rotatably arranged at both ends of the driving seat, and the driving wheels at both ends of the driving seat rotate synchronously through the conveyor belt, and the width of the conveyor belt is smaller than the width of the connecting groove.

[0018] As a preferred technical solution of the present invention, a dual-axis motor is arranged at the bottom of the fixed plate one, and the two ends of the dual-axis motor extend to the interior of the two driving seats respectively and are provided with sprockets, and the interior of the driving seat is provided with a chain for connecting the sprocket and the driving wheel for transmission, and a fixed plate two is arranged on the side of the driving seat away from the fixed plate one, and an electric push rod three is arranged at the bottom of the fixed plate two, and sensors are embedded on both sides of the inner wall of the movable hole, and the two sensors correspond to the induction plate one and the induction plate two respectively.

[0019] Compared with the prior art, the present invention provides a positioning device for a degradable and environmentally friendly packaging box, which has the following beneficial effects:

[0020] 1. The positioning device for the degradable and environmentally friendly packaging box generates suction by pulling the negative pressure air bag to hold the packaging box plate. No complicated pipelines are required. The conductive slide and the conductive slide rail cooperate with each other. The electric push rod inside the positioning slide does not need complicated power supply lines. The positioning slide can move flexibly without the pipelines and lines getting entangled or damaged. It is more convenient to use, occupies less space and has low use cost, which meets the needs of users.

[0021] 2. The positioning device for the degradable and environmentally friendly packaging box has an adsorption head that can be replaced inside any adsorption hole, and can be directly unplugged and inserted into the adsorption hole to be installed without closing and opening the air circuit. The adjustment process is simple and quick, and the use is more convenient. The adsorption head can be replaced independently after being damaged, without replacing the entire positioning slide plate, thereby reducing the later use cost. In addition, this design method enables the positioning slide plate to adapt to packaging box panels of different sizes for adsorption. Only the position and number of the adsorption heads need to be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a positioning device for a degradable and environmentally friendly packaging box proposed by the present invention;

[0023] Figure 2 A schematic diagram of the structure of the movable holes of a positioning device for a degradable and environmentally friendly packaging box proposed by the present invention;

[0024] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0025] Figure 4 This is a schematic diagram of the structure of a conveying mechanism of a positioning device for a degradable and environmentally friendly packaging box proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the positioning mechanism structure of a positioning device for a degradable and environmentally friendly packaging box proposed by the present invention;

[0027] Figure 6 for Figure 5 A magnified view of the structure at center A;

[0028] Figure 7 This is a front cross-sectional view of a connection groove structure of a positioning device for a degradable and environmentally friendly packaging box proposed by the present invention;

[0029] Figure 8 for Figure 7 A magnified view of the structure at center A;

[0030] Fig. 9 for Figure 7 A magnified view of the structure at B in the middle;

[0031] Fig.10 for Figure 7 A magnified view of the structure at C in the middle;

[0032] Fig.11 A side cross-sectional view of a positioning groove structure of a positioning device for a degradable and environmentally friendly packaging box proposed by the present invention;

[0033] Fig.12 This is a front cross-sectional view of a fixing plate structure of a positioning device for a degradable and environmentally friendly packaging box proposed by the present invention.

[0034] In the figure: 1. positioning mechanism; 11. positioning slide plate; 111. conductive slide plate; 112. driving motor; 113. gear; 114. avoidance hole; 115. slide groove; 12. connecting groove; 13. adsorption head; 131. suction cup base; 132. suction cup body; 133. fixing rod; 134. suction pipe; 135. suction cavity; 136. sealing pad; 137. spring 1; 138. buckle; 139. spring 2; 14. adsorption hole; 141. docking groove; 142. suction joint; 143. valve cover; 144. operation port; 145. block; 146. sealing sleeve; 147. torsion spring; 15. driving cavity; 151. negative pressure air bag; 152. electric push rod 1; 153. pull plate; 1531. valve seat; 1532. valve plate; 1533. stable Fixed rod; 154, exhaust hole; 155, electric push rod 2; 156, tension spring; 157, connecting plate; 158, reinforcing rib; 16, positioning groove; 17, positioning seat; 171, screw rod; 172, positioning block; 173, inclined block 1; 174, movable rod; 18, driving rod; 181, induction sheet 1; 182, inclined block 2; 183, spring 3; 19, induction sheet 2; 2, printing conveyor line; 21, movable hole; 22, conductive slide rail; 23, tooth groove; 24, slide rail; 25, conveying mechanism; 251, fixed plate 1; 252, driving seat; 253, driving wheel; 254, conveyor belt; 255, dual-axis motor; 256, sprocket; 257, chain; 258, fixed plate 2; 259, electric push rod 3; 26, sensor; 27, printing press. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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.

[0036] See also Figure 1-Figure 12 A positioning device for a degradable and environmentally friendly packaging box comprises a positioning mechanism 1 and a printing conveyor line 2. The positioning mechanism 1 comprises a positioning slide 11, a connecting groove 12 and an adsorption head 13. The top of the positioning slide 11 is provided with at least two connecting grooves 12 and a plurality of adsorption holes 14 located on both sides of the two connecting grooves 12. The adsorption head 13 is movably connected to the inside of the adsorption hole 14. The number of the adsorption heads 13 is several. A docking groove 141 is provided at the bottom of the adsorption hole 14. A suction joint 142 is provided inside the docking groove 141. A valve cover 143 is hinged at the top of the suction joint 142. The valve cover 143 is used to close the unused suction joint 142 to avoid air leakage in the unused suction joint 142.

[0037] The suction head 13 is movably provided with a suction cup base 131 inside, and a suction cup body 132 is provided on the top of the suction cup base 131. The top of the suction cup body 132 protrudes to the outside of the suction hole 14, and the bottom of the suction head 13 is provided with a fixing rod 133 for resisting the valve cover 143 for flipping and a suction pipe 134 with the bottom end inserted into the suction joint 142. The suction head 13 can be replaced inside any suction hole 14, and can be directly unplugged and directly inserted into the suction hole 14 to be installed without closing and opening the air circuit. The adjustment process is simple and quick, and it is more convenient to use. The suction head 13 can be replaced independently after being damaged, and there is no need to replace the entire positioning slide plate 11, which reduces the later use cost.

[0038] A driving chamber 15 is provided inside the positioning slide plate 11, and a negative pressure air bag 151 connected to the suction connector 142 is provided inside the driving chamber 15. An electric push rod 152 is also provided inside the driving chamber 15, and a pull plate 153 is provided at the output end of the electric push rod 152. The top of the pull plate 153 is connected to the bottom of the negative pressure air bag 151, and an exhaust hole 154 is provided inside the pull plate 153. An electric push rod 2 155 for controlling the opening and closing of the exhaust hole 154 is provided at the bottom of the pull plate 153. The electric push rod 152 is started to pull the negative pressure air bag 151 through the pull plate 153, and the negative pressure air bag 151 opens to inhale through the suction connector 142. The suction connector 142 draws air through the suction pipe 134 and the suction cup base 131, so that the suction cup body 132 firmly sucks the packaging box plate on its top.

[0039] A conductive slide 111 is disposed on one side of the positioning slide 11 , a driving motor 112 is disposed at the bottom of the positioning slide 11 , and a gear 113 is disposed at the output end of the driving motor 112 .

[0040] A movable hole 21 is provided inside the printing conveyor line 2, and the positioning slide plate 11 is movably provided inside the movable hole 21. A conductive slide rail 22 and a tooth groove 23 are provided on one side of the inner wall of the movable hole 21. One end of the conductive slide 111 extends to the top of the conductive slide rail 22, and the tooth groove 23 is meshed with the gear 113. After the conductive slide rail 22 is energized, the conductive slide 111 contacts the conductive slide rail 22, so that the electric push rod 1 152, the electric push rod 2 155, the electric push rod 3 259 and the driving motor 112 are connected to the circuit, without the use of complex circuits, and there will be no circuit entanglement.

[0041] As a specific technical solution of this embodiment, an air suction chamber 135 is provided inside the adsorption head 13, the bottom of the suction cup base 131 is located inside the air suction chamber 135, and a sealing gasket 136 is provided between the bottom circle of the suction cup base 131 and the inner wall of the air suction chamber 135, and a spring 137 is provided on the top circle of the suction cup base 131. The length of the fixing rod 133 is greater than the length of the air suction pipe 134. When the air suction joint 142 draws air through the air suction chamber 135, the air suction chamber 135 will not only suck the packaging box sheet through the suction cup body 132, but also suck the suction cup base 131 and descend together when the air suction chamber 135 draws air, so that the part of the suction cup body 132 originally protruding to the outside of the adsorption hole 14 sinks into the inside of the adsorption hole 14, and the suction cup body 132 sucks the packaging box sheet tightly against the top of the positioning slide plate 11, further ensuring the flatness and stability of the packaging box sheet, so that the efficiency of the packaging box sheet is higher, the printing quality is also higher, and the product defective rate is low when the printing operation is carried out.

[0042] As a specific technical solution of this embodiment, the adsorption hole 14 is square, and operation ports 144 are provided on both sides of the inner wall of the adsorption hole 14. A card block 145 is provided at the bottom of the inner wall of the operation port 144. The top of the card block 145 extends to the inside of the adsorption head 13. Buckles 138 corresponding to the two operation ports 144 are provided inside the two sides of the adsorption head 13. One end of the buckle 138 is snapped with the card block 145, and the other end extends to the outside of one side of the adsorption head 13. A spring 139 is provided on one side of the end of the buckle 138 snapped with the card block 145. The disk body 132 is circular, and the square adsorption hole 14 cooperates with the operating port 144, which facilitates the plugging and unplugging of the adsorption head 13. The length of the fixing rod 133 is greater than the suction pipe 134. The fixing rod 133 first contacts one end of the valve cover 143, causing the valve cover 143 to flip over. As the fixing rod 133 continues to descend, the valve cover 143 flips over and completely breaks away from the obstruction on the top of the suction connector 142. At this time, the suction pipe 134 descends into the interior of the suction connector 142 to complete the air path conduction. If the direction of the fixing rod 133 is reversed and does not contact the valve cover 143, it is only necessary to turn the adsorption head 13180 degrees, which is more convenient to use.

[0043] As a specific technical solution of this embodiment, the interior of the suction joint 142 is provided with a sealing sleeve 146 which is sleeved with the exterior of the suction pipe 134, the valve cover 143 is hinged to the suction joint 142 through a torsion spring 147, and a plurality of tension springs 156 are provided on the inner walls around the driving chamber 15, and a connecting plate 157 is provided at one end of the tension spring 156 away from the inner wall of the driving chamber 15, and a side of the connecting plate 157 away from the tension spring 156 is connected to one side of the negative pressure air bag 151, and the provision of the sealing sleeve 146 ensures the sealing of the connection between the suction pipe 134 and the suction joint 142, and the valve cover 143 is hinged to the suction joint 142 through the torsion spring 147, and when the valve cover 143 is separated from the interference of the fixing rod 133, the valve cover 143 automatically flips over and closes the suction joint 142, so that the unused suction joint 142 Keep it in a closed state. When the negative pressure air bag 151 draws air, the air will not enter the inside of the negative pressure air bag 151 from the closed suction joint 142, and will not affect the air pressure stability of other suction joints 142 in use. The setting of the automatic valve cover 143 does not require additional control of the opening or closing of the air circuit when plugging and unplugging the adsorption head 13, and is more convenient to use. When the negative pressure air bag 151 is pulled open by the pulling plate 153, the part of the negative pressure air bag 151 pulled by the tension spring 156 will approach the middle of the negative pressure air bag 151, and at the same time, the negative pressure air bag 151 will stretch the tension spring 156. The setting of the tension spring 156 means that when the pulling plate 153 drops into place, multiple tension springs 156 will continue to pull the negative pressure air bag 151, so that the negative pressure air bag 151 continues to generate suction on the suction cup body 132, further ensuring the adsorption stability of the suction cup body 132.

[0044] As a specific technical solution of this embodiment, a plurality of reinforcing ribs 158 are provided in a circle of inner wall of the negative pressure air bag 151, a valve seat 1531 corresponding to the exhaust hole 154 is provided at the bottom of the pull plate 153, a valve plate 1532 is movably provided inside the valve seat 1531, one end of the valve plate 1532 is connected to the output end of the electric push rod 155, and an avoidance hole 1531 corresponding to the valve seat 1531 and the electric push rod 155 is provided at the bottom of the positioning slide plate 11. 14. The reinforcing rib 158 is made of thin iron wire or other metal wire, which is mainly used to improve the overall strength of the negative pressure air bag 151 without affecting the folding and unfolding operation of the negative pressure air bag 151. The setting of the avoidance hole 114 is used to avoid the electric push rod 155 and the valve seat 1531 that are lowered with the pull plate 153. When the packaging box sheet is printed and needs to be separated from the adsorbed state, the electric push rod 155 is first started to pull the valve plate 1532 away from the blocking of the valve seat 1531, and the valve plate 1532 slowly separates. The exhaust hole 154 is separated from the obstruction, so that the external air enters the interior of the negative pressure air bag 151 through the avoidance hole 114 and the exhaust hole 154, so that the suction cup body 132 is separated from the adsorption of the packaging box sheet. Since the electric push rod 155 is pulled slowly, the external air slowly enters the interior of the negative pressure air bag 151, and the suction cup base 131 will not float up quickly to lift the packaging box sheet, resulting in a large deviation in the position of the packaging box sheet, which is beneficial to the later transportation. When the valve plate 1532 is completely separated from the obstruction of the exhaust hole 154, the electric push rod 152 is started at this time to drive the pull plate 153 to rise. Since the exhaust hole 154 is large, when the pull plate 153 rises and squeezes the negative pressure air bag 151, the air inside the negative pressure air bag 151 will be discharged through the exhaust hole 154 first, and the air will not be discharged through the suction joint 142 and the adsorption head 13, and the packaging box sheet on the top of the suction cup body 132 will not be blown up, which further ensures the stability of the packaging box sheet, which is beneficial to the later transportation.

[0045] As a specific technical solution of this embodiment, the bottom of the pull plate 153 is provided with a plurality of stabilizing rods 1533 whose bottom ends extend through the bottom of the positioning slide plate 11. Slide grooves 115 are provided on both sides of the positioning slide plate 11. Slide rails 24 are provided on both sides of the inner wall of the movable hole 21. The two slide grooves 115 are movably connected with the two slide rails 24 respectively. The setting of the stabilizing rods 1533 ensures the stability of the pull plate 153 during the up and down movement. The two sides of the positioning slide plate 11 are suspended inside the movable hole 21 through the cooperation of the slide grooves 115 and the slide rails 24. The setting of the conductive slide rails 22 and the conductive slide sheet 111 divides the positioning slide plate 11 and the printing conveyor line 2 into two independent individuals without a line connection between them. This design method greatly reduces the difficulty of assembly, and there is no need to consider issues such as line layout, making it more convenient to use.

[0046] As a specific technical solution of this embodiment, the interior of the positioning slide plate 11 is provided with a positioning groove 16 located between the two connecting grooves 12, and a positioning seat 17 is movably provided inside the positioning groove 16. A screw rod 171 is rotatably provided inside the positioning seat 17, and a positioning block 172 is movably sleeved on the screw rod 171, the top of which passes through the positioning groove 16 and extends to the top of the positioning slide plate 11. One end of the screw rod 171 extends to the outside of the positioning seat 17, and the position of the positioning block 172 is adjusted according to the different sizes of packaging box plates. The positioning blocks 172 extend to both sides of the interior of the positioning seat 17 and slide in contact with the inner walls of both sides of the positioning seat 17, so that the positioning block 172 can only move axially along the screw rod 171 under the influence of the rotation of the screw rod 171, and cannot rotate circumferentially, thereby ensuring the stability of the positioning block 172. The position of the positioning block 172 can be adjusted by rotating the screw rod 171.

[0047] As a specific technical solution of this embodiment, an inclined block 173 is provided at the bottom of the positioning seat 17, and a driving rod 18 located between the two connecting grooves 12 is movably provided inside the positioning slide 11. One end of the driving rod 18 extends to the outside of the positioning slide 11 and is provided with a sensing sheet 181, and the other end extends to the inside of the positioning groove 16 and is provided with an inclined block 182. The inclined surfaces of the inclined block 173 and the inclined block 182 are matched. At least one movable rod 174 is provided at the bottom of the positioning seat 17, and the bottom end of the movable rod 174 extends to the bottom of the inner wall of the positioning groove 16. The end of the positioning slide 11 away from the sensing sheet 181 is provided with a sensing sheet 19. One side of the movable hole 21 is the upper material position, and the other side is the lower material position. The packaging box sheet is moved between the upper material position and the lower material position. During the printing operation, the positioning mechanism 1 sucks the packaging box sheet material and passes it through the printing roller of the printing machine 27 to complete the printing. A spring 3 183 is provided at the end of the driving rod 18 away from the sensing sheet 181. The sensor 26 is a groove-type photoelectric switch. When the positioning slide plate 11 moves to the loading position, the sensing sheet 181 is inserted into the groove of the sensor 26 to complete the detection of the positioning slide plate 11 moving to the loading position. At the same time, the sensing sheet 181 is resisted and drives the driving rod 18 to move. The driving rod 18 compresses the spring 3 183. At the same time, the driving rod 18 drives the inclined block 2 182 to resist the inclined block 173. The inclined block 173 is resisted and rises. The rising of the inclined block 173 drives the positioning seat 17 and the positioning block 172 to rise, so that the positioning block 172 protrudes from the inside of the positioning groove 16 to the top of the positioning slide plate 11, and the packaging box sheet material can be positioned.

[0048] As a specific technical solution of this embodiment, at least two groups of conveying mechanisms 25 are arranged inside the printing conveyor line 2, and the two groups of conveying mechanisms 25 are respectively located on both sides of the movable hole 21. The conveying mechanism 25 includes a fixed plate 251 and a driving seat 252 arranged on both sides of the fixed plate 251. One end of the driving seat 252 in one group of the conveying mechanisms 25 extends to the inside of the connecting groove 12, and both ends of the driving seat 252 are rotatably provided with driving wheels 253. The driving wheels 253 at both ends of the driving seat 252 are synchronously rotated through a conveyor belt 254. The width of the conveyor belt 254 is smaller than the width of the connecting groove 12. A dual-axis motor 255 is arranged at the bottom of the fixed plate 251, and the two ends of the dual-axis motor 255 are respectively The two drive seats 252 are respectively extended to the interior of the two drive seats 252 and are provided with sprockets 256. The interior of the drive seat 252 is provided with a chain 257 for connecting the sprocket 256 with the drive wheel 253. A fixed plate 258 is provided on the side of the drive seat 252 away from the fixed plate 1 251. An electric push rod 3 259 is provided at the bottom of the fixed plate 258. Sensors 26 are embedded on both sides of the inner wall of the movable hole 21. The two sensors 26 correspond to the induction sheet 1 181 and the induction sheet 2 19 respectively. Since the suction cup body 132 protrudes from the top of the positioning slide plate 11, when the conveying mechanism 25 is started to convey the packaging box sheet, the electric push rod 3 259 is first started to lift the fixed plate 258, and the fixed plate 258 lifts the drive seat 252 to rise, and the drive The movable seat 252 drives the conveyor belt 254 to rise above the suction cup body 132, avoiding the situation that the packaging box plate material conflicts with the suction cup body 132 when conveying the packaging box plate material, and the conveying process is smoother without jamming. One end of the driving seat 252 extends to the inside of the movable hole 21, and the length of the driving seat 252 extending to the inside of the movable hole 21 is greater than or equal to the length of the connecting groove 12. The conveyor belt 254 in the conveying mechanism 25 at the upper material position is inserted into the inside of the connecting groove 12, and the electric push rod 3 259 in the upper material position conveying structure is started to lift the conveyor belt 254 higher than the suction cup body 132, and the packaging box plate material to be printed is calibrated and placed on the upper material position conveyor belt 254, and the dual-axis motor 255 in the upper material position conveying mechanism 25 is started to drive the driving seat 254 to be driven. The driving wheel 253 rotates, and the driving wheel 253 drives the conveyor belt 254 to rotate and convey the packaging box sheet to the top of the positioning slide 11. When one end of the packaging box sheet hits the positioning block 172, the double-axis motor 255 in the upper material level conveying mechanism 25 is turned off, and the electric push rod 3 259 in the upper material level conveying mechanism 25 is started to descend, so that the packaging box sheet is supported by the suction cup body 132, and the electric push rod 1 152 can be started to drive the pull plate 153 to descend and open the negative pressure air bag 151. The negative pressure air bag 151 is unfolded to absorb the air inside the suction cavity 135 through the suction joint 142 and the suction pipe 134, so that the suction cup body 132 sucks the packaging box sheet, and at the same time, the suction cup resists and pulls the suction cup body 132 downward, so that the bottom of the packaging box sheet is close to the top of the positioning slide 11.The printing process is more stable. The drive motor 112 is started to drive the gear 113 to rotate. The gear 113 engages with the tooth groove 23 to drive the positioning slide 11 to move inside the movable hole 21. When the positioning slide 11 is away from the loading position, the induction sheet 181 is separated from the inside of the sensor 26. At the same time, the spring 3 183 rebounds and drives the driving rod 18 to reset. The driving rod 18 drives the inclined block 2 182 to break away from the resistance to the inclined block 1 173, so that the positioning seat 17 naturally descends due to gravity, and the positioning block 172 sinks into the positioning groove 1 along with the positioning seat 17. 6, and will not conflict with the printing roller. When the positioning slide 11 is finished printing, the positioning slide 11 moves to the unloading position, so that the conveyor belt 254 in the unloading conveying mechanism 25 is inserted into the interior of the connecting groove 12. At this time, the unloading conveyor belt 254 is in a descending state, and the electric push rod 2 155 is started to exhaust. After the exhaust is completed, the electric push rod 3 259 in the unloading conveying mechanism 25 is started to lift the conveyor belt 254, so that the conveyor belt 254 lifts the printed packaging box sheet, and the dual-axis motor 255 is started to send it away.

[0049] As a specific technical solution of this embodiment, refer to Figure 1 The printing machine 27 on the printing conveyor line 2 is arranged in the middle part of the movable hole 21, and the two ends of the printing conveyor line 2 can be connected to the production process before and after the printing of the packaging box, further ensuring the efficiency of the packaging box production.

[0050] To sum up, the positioning device for the degradable and environmentally friendly packaging box generates suction by pulling the negative pressure air bag 151 to hold the packaging box plate, without the need for complicated pipelines, and the conductive slide 111 cooperates with the conductive slide rail 22, and the electric push rod inside the positioning slide 11 does not need complicated power supply lines. The positioning slide 11 can move flexibly, and there will be no entanglement or damage to the pipelines and lines. It is more convenient to use, occupies less space and has low usage costs, meeting user needs.

[0051] The positioning device for the degradable and environmentally friendly packaging box has an adsorption head 13 that can be replaced inside any adsorption hole 14, and can be directly unplugged and inserted into the adsorption hole 14 to be installed, without closing and opening the air path. The adjustment process is simple and quick, and the use is more convenient. The adsorption head 13 can be replaced independently after being damaged, without replacing the entire positioning slide plate 11, thereby reducing the later use cost. In addition, this design method allows the positioning slide plate 11 to adapt to packaging box plates of different sizes for adsorption, and only the position and number of the adsorption heads 13 need to be adjusted.

[0052] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0053] 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 positioning device for a biodegradable and environmentally friendly packaging box, comprising a positioning mechanism (1) and a printing conveyor line (2), characterized in that: The positioning mechanism (1) comprises a positioning slide (11), a connecting groove (12) and an adsorption head (13); the top of the positioning slide (11) is provided with at least two connecting grooves (12) and a plurality of adsorption holes (14) located on both sides of the two connecting grooves (12); the adsorption head (13) is movably engaged with the inside of the adsorption hole (14); the number of the adsorption heads (13) is a plurality; the bottom of the adsorption hole (14) is provided with a docking groove (141); the inside of the docking groove (141) is provided with an air suction joint (142); the top of the air suction joint (142) is hinged with a valve cover (143); A suction cup base (131) is movably provided inside the suction head (13), a suction cup body (132) is provided on the top of the suction cup base (131), the top of the suction cup body (132) protrudes to the outside of the suction hole (14), and a fixing rod (133) for contacting the valve cover (143) for turning over and a suction pipe (134) with a bottom end inserted into the interior of the suction joint (142) are provided at the bottom of the suction head (13); The positioning slide plate (11) is provided with a driving chamber (15) inside, the driving chamber (15) is provided with a negative pressure air bag (151) connected to the suction joint (142), the driving chamber (15) is also provided with an electric push rod 1 (152), the output end of the electric push rod 1 (152) is provided with a pull plate (153), the top of the pull plate (153) is connected to the bottom of the negative pressure air bag (151), the pull plate (153) is provided with an exhaust hole (154), and the bottom of the pull plate (153) is provided with an electric push rod 2 (155) for controlling the opening and closing of the exhaust hole (154); A conductive sliding sheet (111) is provided on one side of the positioning slide plate (11), a driving motor (112) is provided at the bottom of the positioning slide plate (11), and a gear (113) is provided at the output end of the driving motor (112); A movable hole (21) is provided inside the printing conveyor line (2), the positioning slide plate (11) is movably provided inside the movable hole (21), a conductive slide rail (22) and a tooth groove (23) are provided on one side of the inner wall of the movable hole (21), one end of the conductive slide plate (111) extends to the top of the conductive slide rail (22), and the tooth groove (23) is meshed with the gear (113); An air suction cavity (135) is provided inside the adsorption head (13), the bottom of the suction cup base (131) is located inside the air suction cavity (135), and a sealing gasket (136) is provided between a circle of the bottom of the suction cup base (131) and an inner wall of the air suction cavity (135), a circle of the top of the suction cup base (131) is provided with a spring (137), and the length of the fixing rod (133) is greater than the length of the air suction pipe (134); The interior of the air intake connector (142) is provided with a sealing sleeve (146) which is sleeved with the exterior of the air intake pipe (134); the valve cover (143) is hinged to the air intake connector (142) via a torsion spring (147); a plurality of tension springs (156) are provided on the inner walls around the driving chamber (15); a connecting plate (157) is provided at one end of the tension spring (156) away from the inner wall of the driving chamber (15); and a side of the connecting plate (157) away from the tension spring (156) is connected to one side of the negative pressure air bag (151).

2. A positioning device for a degradable and environmentally friendly packaging box according to claim 1, characterized in that: The adsorption hole (14) is square in shape, and operation ports (144) are arranged on both sides of the inner wall of the adsorption hole (14), and a clamping block (145) is arranged at the bottom of the inner wall of the operation port (144), and the top of the clamping block (145) extends to the inside of the adsorption head (13), and buckles (138) corresponding to the two operation ports (144) are arranged on both sides of the inside of the adsorption head (13), one end of the buckle (138) is clamped with the clamping block (145), and the other end extends to the outside of one side of the adsorption head (13), and a second spring (139) is arranged on one side of the end of the buckle (138) clamped with the clamping block (145).

3. The positioning device for a degradable and environmentally friendly packaging box according to claim 1, characterized in that: A plurality of reinforcing ribs (158) are arranged in a circle of the inner wall of the negative pressure air bag (151); a valve seat (1531) corresponding to the exhaust hole (154) is arranged at the bottom of the pull plate (153); a valve plate (1532) is movably arranged inside the valve seat (1531); one end of the valve plate (1532) is connected to the output end of the second electric push rod (155); and an avoidance hole (114) corresponding to the valve seat (1531) and the second electric push rod (155) is arranged at the bottom of the positioning slide plate (11).

4. The positioning device for a degradable and environmentally friendly packaging box according to claim 1, characterized in that: The bottom of the pull plate (153) is provided with a plurality of stabilizing rods (1533) whose bottom ends extend through the bottom of the positioning slide plate (11). Slide grooves (115) are provided on both sides of the positioning slide plate (11). Slide rails (24) are provided on both sides of the inner wall of the movable hole (21). The two slide grooves (115) are movably connected to the two slide rails (24) respectively.

5. The positioning device for a degradable and environmentally friendly packaging box according to claim 1, characterized in that: The interior of the positioning slide plate (11) is provided with a positioning groove (16) located between the two connecting grooves (12); a positioning seat (17) is movably provided inside the positioning groove (16); a screw rod (171) is rotatably provided inside the positioning seat (17); a positioning block (172) is movably sleeved on the screw rod (171), the top of which passes through the positioning groove (16) and extends to the top of the positioning slide plate (11); one end of the screw rod (171) extends to the outside of the positioning seat (17).

6. A positioning device for a degradable and environmentally friendly packaging box according to claim 5, characterized in that: The bottom of the positioning seat (17) is provided with an inclined block 1 (173), and the interior of the positioning slide plate (11) is movably provided with a driving rod (18) located between the two connecting grooves (12). One end of the driving rod (18) extends to the outside of the positioning slide plate (11) and is provided with a sensing piece 1 (181), and the other end extends to the inside of the positioning groove (16) and is provided with an inclined block 2 (182). The inclined surfaces of the inclined block 1 (173) and the inclined block 2 (182) are matched. The bottom of the positioning seat (17) is provided with at least one movable rod (174), and the bottom end of the movable rod (174) extends to the bottom of the inner wall of the positioning groove (16). The end of the positioning slide plate (11) away from the sensing piece 1 (181) is provided with a sensing piece 2 (19).

7. The positioning device for a degradable and environmentally friendly packaging box according to claim 1, characterized in that: At least two groups of conveying mechanisms (25) are arranged inside the printing conveyor line (2), and the two groups of conveying mechanisms (25) are respectively located on both sides of the movable hole (21). The conveying mechanisms (25) include a fixed plate (251) and a driving seat (252) arranged on both sides of the fixed plate (251), wherein one end of the driving seat (252) in one group of the conveying mechanisms (25) extends into the interior of the connecting groove (12), and driving wheels (253) are rotatably arranged at both ends of the driving seat (252), and the driving wheels (253) at both ends of the driving seat (252) rotate synchronously through a conveying belt (254), and the width of the conveying belt (254) is smaller than the width of the connecting groove (12).

8. The positioning device for a degradable and environmentally friendly packaging box according to claim 7, characterized in that: A dual-axis motor (255) is disposed at the bottom of the fixed plate 1 (251), and two ends of the dual-axis motor (255) respectively extend to the interior of the two drive seats (252) and are provided with sprockets (256), and a chain (257) for transmission connection between the sprockets (256) and the drive wheel (253) is disposed inside the drive seat (252), and a fixed plate 2 (258) is disposed on the side of the drive seat (252) away from the fixed plate 1 (251), and an electric push rod 3 (259) is disposed at the bottom of the fixed plate 2 (258), and sensors (26) are embedded on both sides of the inner wall of the movable hole (21), and the two sensors (26) correspond to the first induction sheet (181) and the second induction sheet (19), respectively.

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