Insulated paper cup forming production equipment

Abstract

The present invention relates to the technical field of paper cup production, and particularly to a thermal insulation paper cup forming production equipment, comprising a paper cup machine and a cup paper compounding machine for pasting inner cup paper and thermal insulation paper to form double-layer cup paper. The cup paper compounding machine comprises a machine body and a disk body rotating on the machine body, wherein the disk body is provided with multiple sets of cup paper openings matching the double-layer cup paper. The present invention causes the cup paper to circulate through a thermal insulation paper station, a gluing station, an inner cup paper station, and a double-layer cup paper station in sequence through the intermittent rotation of the disk body, thereby first placing the thermal insulation paper into the cup paper opening, then spraying glue on the thermal insulation paper, and then placing the inner cup paper on the glue-sprayed thermal insulation paper, so that the inner cup paper and the thermal insulation paper are pasted together to form a double-layer cup paper. Finally, the double-layer cup paper is pushed out of the cup paper opening, i.e., continuously pasting the inner cup paper and the thermal insulation paper to form the double-layer cup paper. The present invention not only has a simple structure and low device cost, but also realizes high-speed supply of double-layer cup paper to the paper cup machine, thereby further improving the production efficiency of thermal insulation paper cups.

Description

Technical Field

[0001] The present invention relates to the field of paper cup production, and in particular to a heat-insulating paper cup forming and production device. Background Art

[0002] A paper cup is a paper container made by mechanically processing and gluing paper made from chemical wood pulp. It has a cup-shaped appearance. The production process includes feeding the paper into the cup body, forming the cup tube, feeding the cup tube, feeding the paper into the cup bottom, feeding the bottom, heating, folding the bottom, rolling the bottom, curling the top, and finally removing the cup. Currently, insulated paper cups are made by gluing an insulating outer layer onto the outside of the original paper cup.

[0003] At present, China's patent number "201510535787.6" (publication number CN105109109B) discloses a fully automatic intelligent insulated paper cup production line, which consists of an inner cup forming machine, an inner cup inspection machine, an insulated cup outer labeling machine, an automatic bagging machine and an automatic cartoning machine connected in sequence. The inner cup forming machine and the inner cup inspection machine are connected through a first connecting conveying pipe, the inner cup inspection machine and the insulated cup outer labeling machine are connected through a second connecting conveying pipe, the insulated cup outer labeling machine and the automatic bagging machine are connected through a third connecting conveying pipe, the automatic bagging machine and the automatic cartoning machine are connected through a fourth connecting conveying pipe, the automatic cartoning machine is connected to a carton conveying platform, the inlet of the carton conveying platform is connected to the automatic carton forming machine, and the outlet is connected to an automatic folding tape carton sealing machine, the automatic folding tape carton sealing machine is connected to a carton output conveyor, the inner cup forming machine and the insulated cup outer labeling machine are connected to an automatic paper loading device. This production line can realize unmanned operation of the entire process from automatic adding of paper sheets to packing of insulated paper cups, with a high degree of automation and good molding quality of insulated paper cups.

[0004] However, there are still the following defects and deficiencies in the implementation and application process:

[0005] The heat-insulating outer cover is fixedly attached to the outer side of the inner cup by using a heat-insulating cup outer-sticking machine, so the heat-insulating cup outer-sticking machine has a complex structure and a high price. Summary of the Invention

[0006] Technical problems solved

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides an insulated paper cup forming production equipment, which can effectively solve the problems of complex structure and high price of the prior art insulated cup outer labeling machine.

[0008] Technical Solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A thermal insulation paper cup forming and production equipment includes a paper cup machine and a cup-paper laminating machine for pasting inner cup paper and thermal insulation paper to form double-layer cup paper. The cup-paper laminating machine includes a machine body and a disk body rotating on the machine body, the disk body is provided with multiple sets of cup paper openings matching the double-layer cup paper, and the bottom sides of the cup paper openings are each provided with a paper limiting rack for limiting the thermal insulation paper or double-layer cup paper from automatically falling from the cup paper openings. The machine body is provided with a thermal insulation paper station for placing thermal insulation paper into the cup paper openings, a gluing station for spraying glue on the thermal insulation paper, an inner cup paper station for placing inner cup paper into the cup paper openings, and a double-layer cup paper station for removing the double-layer cup paper from the cup paper openings. The double-layer cup paper station is provided with a cup paper lowering unit for pushing the double-layer cup paper out of the cup paper openings. The disk body rotates intermittently so that the cup paper openings circulate through the thermal insulation paper station, the gluing station, the inner cup paper station, and the double-layer cup paper station in sequence.

[0011] Furthermore, the machine body is also provided with a paper placing unit for placing the inner cup paper and the heat-insulating paper into the cup paper opening.

[0012] Furthermore, the paper placement unit includes a frame and two groups of paper racks. Paper pickup ports are provided on the frame corresponding to the thermal insulation paper station and the inner cup paper station respectively. The paper racks are respectively mounted on the upper side of the paper pickup ports and are used to place multiple stacked inner cup papers or thermal insulation papers. Paper pickup mechanisms are respectively provided in the frame corresponding to the paper pickup ports. A first driving member is also provided on the frame. The first driving member drives the first driving member of the paper pickup mechanism, so that the paper pickup mechanism takes out the inner cup paper or thermal insulation paper in the paper rack from the paper pickup port and places the inner cup paper or thermal insulation paper into the cup paper port.

[0013] Furthermore, the paper picking mechanism includes a shaft and a pneumatic suction cup rotating in the frame body. When the first driving member drives the shaft to rotate, the pneumatic suction cup turns to the paper picking port to suck the inner cup paper or insulation paper, or turns the pneumatic suction cup to the cup paper port.

[0014] Furthermore, the paper picking mechanism also includes a second driving member fixed on the shaft, a first support plate slides on the shaft, the first support plate is fixed to the pneumatic suction cup, and the second driving member drives the first support plate to move radially along the shaft.

[0015] Furthermore, a gluing unit is provided on the gluing station, and the gluing unit includes an XY-axis screw slide and a glue spraying head. The XY-axis screw slide drives the glue spraying head to move, so that the glue spraying head sprays glue onto the thermal insulation paper.

[0016] Furthermore, the paper limiting frame includes a rotating shaft that rotates symmetrically on the lower side of the cup paper opening, and a first elastic member for resetting the rotating shaft is provided on the rotating shaft. A plurality of limiting rods are also vertically fixedly connected to the rotating shaft.

[0017] Furthermore, the limit rods are all tubular bodies, and a pin rod slides in the limit rod near the side of the disk body axis, and a second elastic member for resetting the pin rod is provided in the limit rod, and multiple groups of top frames corresponding to the cup paper openings slide on the bottom side of the disk body, and a third elastic member for resetting the top frame is also provided on the bottom side of the disk body. A guide tube is fixed on the body, and a guide ring groove is provided on the side wall of the guide tube to slide with the top frame. Through the guide ring groove, when the top frame rotates with the disk body to the double-layer cup paper station, the top frame is reset, and the pin rod disengages from the limit rod on the other side. When the top frame rotates with the disk body to the thermal insulation paper station, the gluing station or the inner cup paper station, the top frame pushes the pin rod to push the pin rod into the limit rod on the other side.

[0018] Furthermore, the lower cup paper unit includes a bracket and a push block, and the bracket is provided with a third driving member for driving the push block to move.

[0019] Furthermore, the lower cup paper unit also includes a second support plate sliding on the bracket, and a second rack is fixed on the second support plate, which is respectively engaged with the second gears on the two rotating shafts. The push block slides with the second support plate, and a fourth elastic member is provided between the push block and the second support plate. Avoidance openings are respectively opened in the cup paper opening and corresponding to the second gears.

[0020] Beneficial effects

[0021] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0022] The present invention uses the intermittent rotation of the disc body to make the cup paper circulate through the insulation paper station, the gluing station, the inner cup paper station and the double-layer cup paper station in sequence, thereby first placing the insulation paper into the cup paper opening, then spraying glue on the insulation paper, and then placing the inner cup paper on the glue-sprayed insulation paper, so that the inner cup paper and the insulation paper are pasted together to form a double-layer cup paper, and finally the double-layer cup paper is pushed out of the cup paper opening, that is, the inner cup paper and the insulation paper are continuously pasted together to form a double-layer cup paper. Not only is the structure simple and the device cost low, but the double-layer cup paper can be provided to the paper cup machine at a high speed, thereby further improving the production efficiency of the insulation paper cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0024] Figure 1 This is a schematic diagram of the overall top view structure of the present invention;

[0025] Figure 2This is a schematic structural diagram of the cup-paper laminating machine according to the present invention from a first perspective;

[0026] Figure 3 This is a schematic structural diagram of the cup-paper laminating machine according to the present invention from a second viewing angle;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the cup-paper laminating machine of the present invention;

[0028] Figure 5 This is a schematic diagram of the disk structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of a limiting rod with a built-in pin rod according to the present invention;

[0030] Figure 7 This is a schematic structural diagram of the lower cup paper unit of the present invention;

[0031] Figure 8 This is a schematic structural diagram of the paper placing unit of the present invention from a first viewing angle;

[0032] Figure 9 This is a schematic structural diagram of the paper placing unit of the present invention from a second viewing angle;

[0033] Figure 10 is a schematic diagram of the cross-sectional structure of a catheter of the present invention;

[0034] The numbers in the figure represent: 1. Machine body; 101. Feed claw groove; 2. Plate; 201. Cup paper opening; 202. Rotating shaft; 203. First elastic member; 204. Limiting rod; 205. Pin rod; 206. Second elastic member; 207. Third elastic member; 208. Second gear; 209. Avoidance opening; 210. Connecting frame; 211. Push rod; 212. Connecting rod; 213. Roller; 214. Support; 215. Slide hole; 216. Slider; 217. Paper guide rod; 3. Lower cup paper unit; 301. Bracket; 302. Push block; 303. Third driving member; 304. Second support plate; 305. Second rack; 306. Fourth elastic member; 307. Second Guide rod; 4. Paper placing unit; 401. Frame; 402. Paper removal port; 403. First driving member; 404. Shaft; 405. Pneumatic suction cup; 406. Second driving member; 407. First support plate; 408. First gear; 409. Moving frame; 410. First rack; 411. Air pipe; 412. Paper rod; 413. Paper limiting block; 414. First guide rod; 5. Gluing unit; 501. XY-axis lead screw slide; 502. Glue spray head; 6. Conduit; 7. Guide ring groove; 701. Outer arc segment; 702. Inner arc segment; 100. Paper cup machine; 200. Cup-paper compound machine; a. Insulation paper station; b. Gluing station; c. Inner cup paper station; d. Double-layer cup paper station. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0036] The present invention will be further described below with reference to the embodiments. Example

[0037] A heat-insulating paper cup forming production equipment of this embodiment, referring to Figure 1-10 The invention comprises a paper cup machine 100 and a cup paper compounding machine 200 for pasting inner cup paper and heat-insulating paper to form double-layer cup paper. The double-layer cup paper is sequentially subjected to the following processes: cup tube forming, cup tube feeding, cup bottom paper feeding, bottom feeding, heating, bottom folding, bottom rolling, mouth curling, and cup discharging by the cup body paper feeding mechanism of the paper cup machine 100. The paper cup machine 100 is a prior art in this technical field and will not be elaborated on in detail here.

[0038] The cup-paper compounding machine 200 comprises a machine body 1 and a rotating Figure 1 The tray body 2 is provided with multiple groups of cup paper openings 201 matching the double-layer cup paper. The present technical solution uses four groups of cup paper openings 201, which are arranged at equal angles on the tray body 2. The top side ends of the cup paper openings 201 are provided with guide surfaces for facilitating the entry of the inner cup paper and the thermal insulation paper into the cup paper openings 201. The sizes of the cup paper openings 201, the inner cup paper, and the thermal insulation paper are all consistent, so that the inner cup paper and the thermal insulation paper completely overlap, effectively preventing the inner cup paper and the thermal insulation paper from being misaligned and pasted.

[0039] On the top side of the machine body 1 and around the tray body 2, there are sequentially arranged an insulation paper station a for placing insulation paper into the cup paper opening 201, a gluing station b for spraying glue on the insulation paper, an inner cup paper station c for placing inner cup paper into the cup paper opening 201, and a double-layer cup paper station d for moving double-layer cup paper out of the cup paper opening 201.

[0040] In this technical solution, a motor is provided in the machine body 1 to drive the disc body 2 to rotate intermittently, so that the disc body 2 rotates intermittently and drives the cup paper opening 201 to circulate through the insulation paper station a, gluing station b, inner cup paper station c and double-layer cup paper station d in sequence.

[0041] In order to prevent the insulation paper or double-layer cup paper from automatically falling from the cup paper opening 201 , a limited paper rack is provided at the bottom side of the cup paper opening 201 so that the insulation paper or double-layer cup paper cannot fall out of the cup paper opening 201 under the action of gravity.

[0042] At the same time, in order to facilitate the removal of the double-layer cup paper from the cup paper opening 201, a lower cup paper unit 3 for pushing the double-layer cup paper out of the cup paper opening 201 is provided on the double-layer cup paper station d.

[0043] When the cup paper opening 201 passes through the insulation paper station a, the insulation paper is placed into the cup paper opening 201. When the cup paper opening 201 passes through the gluing station b, glue is sprayed on the upper side of the insulation paper in the cup paper opening 201. When the cup paper opening 201 passes through the inner cup paper station c, the inner cup paper is placed into the cup paper opening 201, so that the inner cup paper and the insulation paper are pasted to form a double-layer cup paper. When the cup paper opening 201 passes through the double-layer cup paper station d, the double-layer cup paper is pushed out of the cup paper opening 201 by the lower cup paper unit 3, falls on the top side of the machine body 1, passes through the cup body paper feeding mechanism of the paper cup machine 100, and enters the paper cup production link of the paper cup machine 100.

[0044] Through the intermittent rotation of the disc 2, the device causes the cup paper opening 201 to circulate through the thermal insulation paper station a, the gluing station b, the inner cup paper station c, and the double-layer cup paper station d in sequence. Thus, the thermal insulation paper is first placed into the cup paper opening 201, glue is sprayed on the thermal insulation paper, and then the inner cup paper is placed on the glue-sprayed thermal insulation paper, so that the inner cup paper and the thermal insulation paper are adhered to form a double-layer cup paper. Finally, the double-layer cup paper is pushed out of the cup paper opening 201. In other words, the inner cup paper and the thermal insulation paper are continuously adhered to form a double-layer cup paper. This device not only has a simple structure and low device cost, but also realizes high-speed supply of double-layer cup paper to the paper cup machine 100, thereby further improving the production efficiency of thermal insulation paper cups.

[0045] In order to automatically place the inner cup paper and the heat-insulating paper into the cup paper opening 201 , a paper placing unit 4 is further provided on the machine body 1 .

[0046] Specifically, the paper placement unit 4 includes a frame 401, which is fixed to the top side of the body 1. A paper removal port 402 is provided on the top side of the frame 401 corresponding to the thermal insulation paper station a and the inner cup paper station c, respectively. The size of the paper removal port 402 is consistent with the size of the cup paper port 201. A paper rack corresponding to the paper removal port 402 is provided on the top side of the frame 401. Multiple sheets of stacked thermal insulation paper are placed in the paper rack at the thermal insulation paper station a, and multiple sheets of stacked inner cup paper are placed in the paper rack at the inner cup paper station c.

[0047] Among them, the paper rack includes multiple groups of paper rods 412, which are arranged around the outer edge of the paper removal port 402 and fixed to the top side of the rack body 401 through a paper limiting block 413, and one end of the paper limiting block 413 protrudes into the paper removal port 402, thereby limiting the insulation paper and the inner cup paper.

[0048] A first driving member 403 is installed on the frame 401, and a paper picking mechanism is provided inside and corresponding to the thermal insulation paper station a and the inner cup paper station c respectively. The first driving member 403 drives the paper picking mechanism so that the paper picking mechanism takes out the inner cup paper or thermal insulation paper in the paper rack from the paper picking port 402, and then puts the inner cup paper or thermal insulation paper into the corresponding cup paper port 201.

[0049] Specifically, the paper picking mechanism includes a shaft rod 404 and a pneumatic suction cup 405 rotating in the frame body 401, wherein a first gear 408 is fixed at each end of the shaft rod 404, and a movable frame 409 slides in the frame body 401, and a first rack 410 meshing with the first gear 408 is symmetrically fixed on the side wall of the movable frame 409, and a first guide rod 414 is fixed on the upper side of the movable frame 409 for guiding the movement of the movable frame 409.

[0050] In this technical solution, the first driving member 403 is a pneumatic cylinder. When the first driving member 403 drives the movable frame 409 to move up and down, the two parallel sets of first racks 410 engage with the first gear 408, synchronously driving the two sets of shafts 404 to rotate, thereby causing the pneumatic suction cup 405 to turn to the paper removal port 402, suck up the inner cup paper or thermal insulation paper in the paper rack, and then turn to the cup paper port 201 to place the inner cup paper or thermal insulation paper into the cup paper port 201, thereby achieving the purpose of placing the inner cup paper and thermal insulation paper into the cup paper port 201.

[0051] In order to facilitate the pneumatic suction cup 405 to suck the inner cup paper or thermal insulation paper in the paper holder from the paper removal port 402 and to facilitate the sucked inner cup paper or thermal insulation paper to be placed into the cup paper port 201, a first support plate 407 is also slid on the shaft 404, and a second driving member 406 is fixedly installed on the shaft 404; wherein, the pneumatic suction cup 405 is fixedly connected to the first support plate 407 through an air pipe 411, and the air pipe 411 and the shaft 404 are slidably matched, thereby guiding the movement of the first support plate 407.

[0052] In this technical solution, the second driving member 406 is a pneumatic cylinder, which drives the first support plate 407 to move radially along the shaft 404. When the shaft 404 rotates to drive the pneumatic suction cup 405 to turn to the paper taking port 402, the second driving member 406 drives the first support plate 407 to move upward, so that the pneumatic suction cup 405 moves upward into the paper taking port 402, thereby facilitating the suction of the inner cup paper or insulation paper at the bottom of the paper rack. Then, the second driving member 406 drives the first support plate 407 to move upward. The pneumatic suction cup 405 moves downward, so that the pneumatic suction cup 405 moves out of the paper removal opening 402, and the inner cup paper or thermal insulation paper is taken out of the paper removal opening 402 downward. When the shaft 404 rotates to drive the pneumatic suction cup 405 to the cup paper opening 201, the second driving member 406 drives the first support plate 407 downward, so that the pneumatic suction cup 405 moves downward into the cup paper opening 201, thereby facilitating the placement of the inner cup paper or thermal insulation paper into the cup paper opening 201. At the same time, the pneumatic suction cup 405 moves downward, so that the inner cup paper can be quickly attached to the thermal insulation paper.

[0053] In this technical solution, a gluing unit 5 is provided at the gluing station b; specifically, the gluing unit 5 includes an XY-axis screw slide 501 and a glue spray head 502 fixed on the top side of the machine body 1, and the XY-axis screw slide 501 drives the glue spray head 502 to move, so that the glue spray head 502 glues the top side of the thermal insulation paper and close to its edge.

[0054] In this technical solution, the paper limiting frame includes a rotating shaft 202 that rotates symmetrically below the cup paper opening 201. A first elastic member 203 is provided on the rotating shaft 202 for resetting the paper. Multiple sets of limiting rods 204 are also vertically fixedly connected to the rotating shaft 202. Specifically, the first elastic member 203 is a torsion spring. This allows the limiting rods 204 to automatically reset after the rotating shaft 202 drives the limiting rods 204 to rotate downward, allowing the limiting rods 204 to be positioned horizontally below the cup paper opening 201, effectively limiting the position of the thermal insulation paper or double-layer cup paper and preventing the thermal insulation paper or double-layer cup paper from automatically falling due to gravity.

[0055] The lower cup paper unit 3 includes a bracket 301 and a push block 302. The bracket 301 is fixed to the top side of the machine body 1. A third driving member 303 for driving the push block 302 to move up and down is fixedly mounted on the bracket 301. The third driving member 303 is a pneumatic cylinder. The third driving member 303 drives the push block 302 to move downward, squeezing the limit rod 204, causing the limit rod 204 to rotate downward, and at the same time, the double-layer cup paper in the cup paper opening 201 is pushed downward into the cup paper opening 201. At the same time, the downwardly rotating limit rod 204 can guide the double-layer cup paper moving downward out of the cup paper opening 201, so that the double-layer cup paper accurately falls between the two sets of conveying claw grooves 101 on the machine body 1, facilitating the conveying claws of the cup body paper feeding mechanism of the paper cup machine 100 to drive the double-layer cup paper into the paper cup machine 100.

[0056] Among them, the size of the pushing block 302 is consistent with the size of the cup paper opening 201. When the pushing block 302 pushes the double-layer cup paper downward out of the cup paper opening 201 and pushes it onto the body 1, the pushing block 302 can press the double-layer cup paper again, thereby improving the adhesion effect between the insulation paper and the inner cup paper.

[0057] To reduce the impact of the limiting rod 204 on the double-layer cup paper being pushed downward, a second gear 208 is fixed to each of the rotating shafts 202. Meanwhile, a second support plate 304 slides within the bracket 301. A second rack 305 is symmetrically fixed to the sidewall of the second support plate 304, meshing with the second gear 208. Therefore, when the push block 302 pushes the double-layer cup paper downward, the second gear 208 and the second rack 305 cooperate to cause the limiting rod 204 to rotate downward synchronously.

[0058] A second guide rod 307 is fixed to the second support plate 304, and the second guide rod 307 cooperates with the slideway of the bracket 301 to guide the movement of the second support plate 304. At the same time, an avoidance opening 209 is opened in the cup paper opening 201 and corresponds to the second gear 208, so that the second rack 305 passes through the avoidance opening 209 and engages with the second gear 208, thereby preventing the double-layer cup paper from hindering the movement of the second rack 305.

[0059] At the same time, the push block 302 is connected to the bottom side of the second support plate 304 through a third guide rod slide. A fourth elastic member 306 is sleeved on the outer side of the third guide rod and located between the push block 302 and the second support plate 304. The fourth elastic member 306 is specifically a spring. The fourth elastic member 306 elastically cushions the push block 302, thereby preventing the limit rod 204 from squeezing and damaging the double-layer cup paper when the push block 302 pushes the double-layer cup paper downward.

[0060] When the paper picking mechanism downwardly places the inner cup paper or thermal insulation paper into the cup paper opening 201, the second driving member 406 drives the inner cup paper downwardly to press on the thermal insulation paper. In order to keep the inner cup paper stably pressed on the thermal insulation paper and prevent the limit rod 204 from rotating downward, the limit rod 204 is specifically a tube body. A pin rod 205 slides in the limit rod 204 on the side close to the axis of the disc body 2, and a second elastic member 206 for resetting the pin rod 205 is provided in the limit rod 204. Multiple groups of top frames corresponding to the cup paper opening 201 are slidingly provided on the bottom side of the disc body 2. A third elastic member 207 for resetting the top frame is also provided on the bottom side of the disc body 2. A guide tube 6 is fixed on the body 1, and a guide ring groove 7 is provided on the side wall of the guide tube 6 to slide with the top frame.

[0061] Specifically, the second elastic member 206 and the third elastic member 207 are both springs. Both ends of the limit rod 204 close to the axis of the disk body 2 are provided with sliding holes 215 connected thereto, and a through hole connected to the sliding hole 215 is opened on the rotating shaft 202. A slider 216 slides in the limit rod 204, and the limit pin 205 is fixedly connected to the slider 216. The second elastic member 206 is sleeved on the pin 205 and contacts the side wall of the slider 216 and the inner wall of the limit rod 204, thereby elastically acting on the pin 205, so that when there is no external force, the pin 205 is retracted into the sliding hole 215 away from one end of the slider 216.

[0062] The top frame includes a connecting frame 210, and a top rod 211 is fixed to the side of the connecting frame 210 close to the rotating shaft 202. The top rod 211 slides with the support 214 fixed on the bottom side of the disk body 2. The third elastic member 207 is sleeved on the outside of the top rod 211. The two ends of the third elastic member 207 are respectively in contact with the connecting frame 210 and the support 214 to realize the elastic effect on the connecting frame 210. At the same time, a connecting rod 212 is fixed on the other side of the connecting frame 210 away from the top rod 211. The end of the connecting rod 212 is rotatably connected to the roller 213, and the roller 213 is in rolling contact with the guide ring groove 7.

[0063] The guide ring groove 7 is a closed-loop groove body consisting of an outer arc segment 701 and an inner arc segment 702. The diameter of the outer arc segment 701 is larger than that of the inner arc segment 702. The inner arc segment 702 corresponds to the double-layer cup paper station d, and the outer arc segment 701 corresponds to the insulation paper station a, the gluing station b and the inner cup paper station c respectively.

[0064] When the top frame rotates with the tray body 2 to the insulation paper station a or the gluing station b or the inner cup paper station c, that is, when the top frame rotates with the tray body 2 to the outer arc segment 701, the connecting frame 210 moves radially outward along the tray body 2, so that the top rod 211 passes through the perforation into the limiting rod 204, and pushes the slider 216, pushing the pin rod 205 out of the limiting rod 204 and making the rod end of the pin rod 205 pass into the limiting rod 204 on the other side, thereby realizing the relative fixation of the limiting rod 204 and the tray body 2, so that the second driving member 406 drives the inner cup paper to be stably pressed on the insulation paper, thereby improving the sealing performance. When the top frame rotates with the tray body 2 to the double-layer cup paper station d, that is, when the top frame rotates with the tray body 2 to the inner arc section 702, the third elastic member 207 causes the connecting frame 210 to move radially inwardly along the tray body 2 to reset, so that the top rod 211 moves out of the limit rod 204 and the through hole, and the second elastic member 206 causes the pin rod 205 to retract into the limit rod 204, thereby releasing the relative fixation between the limit rod 204 and the tray body 2, and then the double-layer cup paper can be pushed out of the cup paper opening 201 under the action of the lower cup paper unit 3.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A heat-insulating paper cup forming production equipment, including a paper cup machine, characterized in that: The invention also includes a cup paper laminating machine for pasting inner cup paper and thermal insulation paper to form double-layer cup paper. The cup paper laminating machine includes a machine body and a disc body rotating on the machine body. The disc body is provided with multiple cup paper openings matching the double-layer cup paper. The bottom side of each cup paper opening is provided with a paper limiting rack for limiting the automatic fall of thermal insulation paper or double-layer cup paper from the cup paper opening. The machine body is provided with a thermal insulation paper station a for placing thermal insulation paper into the cup paper opening, a gluing station b for spraying glue on the thermal insulation paper, an inner cup paper station c for placing inner cup paper into the cup paper opening, and a double-layer cup paper station d for removing the double-layer cup paper from the cup paper opening. The double-layer cup paper station d is provided with a cup paper lowering unit for pushing the double-layer cup paper out of the cup paper opening. The disc body rotates intermittently so that the cup paper opening circulates through the thermal insulation paper station a, the gluing station b, the inner cup paper station c, and the double-layer cup paper station d in sequence. The top frame is slidably installed on the bottom side of the tray body corresponding to each cup paper opening. The top frame cooperates with the guide ring groove of the machine body through the top rod and roller. When the cup paper opening is located at the insulation paper station a, gluing station b, or inner cup paper station c, the roller enters the outer arc section of the guide ring groove, the push rod pushes into the through hole in the rotating shaft and pushes the pin rod into the opposite side limit rod to achieve relative fixation between the limit rod and the disc body; When the cup paper opening is at position d, the roller enters the inner arc section of the guide ring groove, the push rod moves out of the limit rod and the perforation, and the pin rod retracts under the action of the spring, thereby releasing the relative fixation between the limit rod and the disc body; The lower cup paper unit includes a bracket and a push block, and the bracket is provided with a third driving member for driving the push block to move; The lower cup paper unit also includes a second support plate sliding on the bracket, and a second rack is fixed on the second support plate, which is respectively engaged with the second gears on the two rotating shafts. The push block is slidably matched with the second support plate, and a fourth elastic member is provided between the push block and the second support plate. Avoidance openings are respectively opened in the cup paper opening and corresponding to the second gears.

2. The heat-insulating paper cup forming production equipment according to claim 1, characterized in that: The machine body is also provided with a paper placing unit for placing the inner cup paper and the heat insulation paper into the cup paper opening.

3. The heat-insulating paper cup forming production equipment according to claim 2, characterized in that: The paper placement unit includes a frame and two groups of paper racks. Paper removal ports are provided on the frame corresponding to the thermal insulation paper station a and the inner cup paper station c respectively. The paper racks are respectively mounted on the upper side of the paper removal ports and are used to place multiple stacked inner cup papers or thermal insulation papers. Paper removal mechanisms are respectively provided in the frame corresponding to the paper removal ports. A first driving member is also provided on the frame. The first driving member drives the first driving member of the paper removal mechanism, so that the paper removal mechanism takes out the inner cup paper or thermal insulation paper in the paper rack from the paper removal port and places the inner cup paper or thermal insulation paper into the cup paper port.

4. The heat-insulating paper cup forming production equipment according to claim 3, characterized in that: The paper picking mechanism includes a shaft and a pneumatic suction cup rotating in the frame body. When the first driving member drives the shaft to rotate, the pneumatic suction cup turns to the paper picking port to suck the inner cup paper or insulation paper, or turns to the cup paper port.

5. The heat-insulating paper cup forming production equipment according to claim 4, characterized in that: The paper picking mechanism further comprises a second driving member fixed on the shaft, a first support plate is slidably arranged on the shaft, the first support plate is fixed to the pneumatic suction cup, and the second driving member drives the first support plate to move radially along the shaft.

6. The heat-insulating paper cup forming production equipment according to claim 1, characterized in that: The gluing station b is provided with a gluing unit, which includes an XY-axis screw slide and a glue spraying head. The XY-axis screw slide drives the glue spraying head to move, so that the glue spraying head sprays glue onto the thermal insulation paper.

7. The heat-insulating paper cup forming production equipment according to claim 1, characterized in that: The paper limiting frame includes a rotating shaft which rotates symmetrically on the lower side of the cup paper opening. The rotating shaft is provided with a first elastic member for resetting the rotating shaft. The rotating shaft is also vertically fixedly connected with multiple groups of limiting rods.

8. The heat-insulating paper cup forming production equipment according to claim 7, characterized in that: The limit rods are all tubular bodies, and a pin rod slides in the limit rod near the side of the disk body axis, and a second elastic member for resetting the pin rod is provided in the limit rod. Multiple groups of top frames corresponding to the cup paper openings slide on the bottom side of the disk body, and a third elastic member for resetting the top frame is also provided on the bottom side of the disk body. A guide tube is fixed on the body, and a guide ring groove is provided on the side wall of the guide tube to slide with the top frame. Through the guide ring groove, when the top frame rotates with the disk body to the double-layer cup paper station d, the top frame is reset, and the pin rod disengages from the limit rod on the other side. When the top frame rotates with the disk body to the thermal insulation paper station a, the gluing station b, or the inner cup paper station c, the top frame pushes the pin rod to push the pin rod into the limit rod on the other side.

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