Auxiliary folding device for paper cup holder forming

Abstract

The utility model discloses a kind of paper cup holder forming is used to assist folding device, the utility model relates to paper cup holder production technical field.The paper cup holder forming is used to assist folding device, and its characterized in that: the upper portion of the frame is provided with the folding mechanism for folding into shape horizontal paperboard, the folding mechanism includes: storage component, including fixedly installed in the left side of the right side column of frame bin, the bottom of the bin is fixedly installed with bottom plate, the left side of the bin is magnetically installed with side plate, when paperboard stacking height reduces, movable plate will be followed by down, always contact with the uppermost paperboard;Buffer spring can avoid excessive pressure and damage paperboard, always have enough pressure between the lowermost paperboard and bottom plate, ensure that transmission cylinder can stably push paperboard discharge, the inclined structure of bin bottom end makes paperboard always adhere to discharge direction, without relying on suction cup adsorption, even if stacking height is lower, also can be through the follow-up pressure of movable plate and the push of transmission cylinder, realize continuous feeding.

Description

Technical Field

[0001] This utility model relates to the field of paper cup holder production technology, specifically to an auxiliary folding device for forming paper cup holders. Background Technology

[0002] Takeout orders often require the delivery of multiple drinks at the same time. If they are stacked directly or loosely packed in the delivery box, they are prone to displacement and tipping due to vibration during transportation, resulting in liquid spillage. Paper cup holders use a fixed compartment design, with each compartment size precisely matching the bottom of a standard paper cup, to "lock" each paper cup in its independent compartment, restricting the movement of the paper cup in the horizontal and vertical directions. Even if the delivery box is bumpy, it can prevent the paper cup from tipping over.

[0003] A reference to existing utility model patent CN214294739U is available, which discloses a paper tray forming and folding machine, including a forming mechanism, a guide cover mechanism, and a closing cover mechanism. The forming mechanism is equipped with a hopper and a first suction cup for dragging the side of the paper tray downwards. The width of the discharge port at the bottom of the hopper matches the width of the paper tray, and the depth of the discharge port is greater than the height of the paper tray. The first suction cup is located directly below the discharge port. The guide cover mechanism is equipped with a rotatable swing arm for folding a first small cover and a baffle for folding a second small cover. The closing cover mechanism is equipped with a pushing plate for pushing the large cover straight. This machine can automatically fold paper trays, resulting in high production efficiency and labor savings. After being sucked up by the first suction cup, the paper tray is dragged to the discharge port. At the discharge port, due to the shape of the discharge port, the paper tray changes from a flat state to a quadrangular prism. The swing rod and the baffle fold the first small flap and the second small flap respectively. Finally, the push plate pushes the tail wing of the large flap into the quadrangular prism to complete the folding of the paper tray.

[0004] The aforementioned folding and conveying machine uses suction cups to pick up flat paper trays and transport them to the folding area. The flat paper trays are stored in a hopper, which relies on baffles and guide plates to support them. If the paper trays are not stacked neatly, the bottommost paper tray may get stuck between the baffles and guide plates, causing the first suction cup to "not pick up the material" or "pick up two sheets at a time". If there are too few paper trays in the hopper, "empty material shutdown" may occur, requiring frequent replenishment and affecting continuous production. The paper trays in the hopper are stacked, and as the feeding process progresses, the stacking height of the paper trays gradually decreases. If the stacking height is too low, the suction cup may not be able to contact the paper tray due to insufficient stroke, or the contact pressure may be insufficient, resulting in poor adhesion and interruption of feeding. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an auxiliary folding device for forming paper cup holders, which solves the problems of paper cup holder stacking height affecting material feeding and paper cup holders getting stuck in the material hopper.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An auxiliary folding device for forming paper cup holders includes a frame, and a folding mechanism for folding horizontal cardboard into shape is provided above the frame. The folding mechanism includes:

[0007] The storage component includes a hopper fixedly installed on the left side of the right column of the frame. A base plate is fixedly installed at the bottom of the hopper. A side plate is magnetically installed on the left side of the hopper. A movable plate is fitted inside the hopper. A buffer spring is inserted at the top of the movable plate. A limit tube is movably installed at the top of the movable plate. A connecting block is fixedly installed at the top of the limit tube. One end of the connecting block is connected to an electric push rod. A transmission cylinder is provided on the front side of the base plate.

[0008] A conveyor assembly, located above the frame, is used to transfer cardboard into the folding assembly;

[0009] The folding assembly, located at the rear of the frame, creates creases at the bends of the cardboard to facilitate subsequent securing operations.

[0010] Preferably, the conveying assembly includes a support frame fixedly installed above the machine frame, a movable frame movably installed above the support frame, a support spring inserted through the top of the support frame, a limit shaft inserted through the movable frames and on the inner side of the movable frames, a conveyor belt sleeved on the outer side of the limit shaft, a slide groove fixedly installed on the rear side of the support frame, a discharge cylinder fixedly installed inside the support frame, and a drive motor connected to one end of the limit shaft.

[0011] Preferably, the folding assembly includes a limiting frame fixedly installed above the frame, a support groove fixedly installed above the limiting frame, a folding block fitted below the support groove, a folding cylinder connected below the folding block, a pressing cylinder provided above the support groove, and a limiting plate fixedly installed at the bottom end of the pressing cylinder.

[0012] Preferably, the bottom of the base plate has a notch offset to the right, and the top of the base plate has a groove structure with the same size as the inner cavity of the hopper. A gap is left between the bottom end of the base plate and the bottom end of the hopper. The bottom end of the hopper is inclined at 45 degrees. The front side of the hopper has a groove structure that matches the width of the connecting block. The movable plate and the hopper are slidably connected. The limiting tube and the movable plate are slidably connected. The buffer spring is located outside the cylindrical protrusion at the top of the movable plate, and its top end contacts the bottom end of the limiting tube. The installation angle of the transmission cylinder is less than 45 degrees, and the installation position of the transmission cylinder matches the position of the groove structure of the base plate. The movable end of the transmission cylinder is provided with a rubber column with a spherical end pointing towards the groove of the base plate.

[0013] Preferably, the front end of the conveyor belt above the support frame is located below the base plate, and the movable frame and the columnar structure at the top of the support frame form a sliding connection. The conveyor belt between the movable frames is in contact with the conveyor belt at the top of the support frame. Rectangular structures are provided on both sides of the chute, located on both sides of the contact surface of the two conveyor belts. The bottom of the chute is provided with a notch that matches the width of the movable end of the discharge cylinder. A rubber column with a flat end is fixedly installed on the movable end of the discharge cylinder.

[0014] Preferably, the front end of the support groove is fixedly connected to the bottom end of the slide groove, the bottom surface of the support groove is provided with a notch that matches the width of the top protrusion structure of the folding block, the inner side of the top surface of the protrusion structure of the folding block is provided with an inclined structure, a certain gap is left between the protrusion structure of the folding block and the support groove, the top of the pressing cylinder is fixedly connected to the frame, and the rear end of the limiting plate is provided with a limiting rod with a spacing greater than the width of the protrusion structure of the folding block.

[0015] Beneficial effects

[0016] This invention provides an auxiliary folding device for forming paper cup holders. Compared with the prior art, it has the following advantages:

[0017] (1) The auxiliary folding device for forming paper cup holders achieves stable pressure on paperboards of different stacking heights through the cooperation of a movable plate, an electric push rod, and a buffer spring. The electric push rod can drive the movable plate to move flexibly up and down in the hopper through a connecting block and a limiting tube. When the stacking height of the paperboard decreases, the movable plate will move down accordingly and always be in contact with the top layer of paperboard. The buffer spring can buffer the pressure of the movable plate on the paperboard, which not only avoids excessive pressure that damages the paperboard, but also ensures that there is always sufficient pressure between the bottom layer of paperboard and the bottom plate, so that the transmission cylinder can stably push the paperboard out. At the same time, the inclined structure at the bottom of the hopper makes the paperboard always adhere to the discharge direction, without relying on suction cups for adsorption. Even if the stacking height is low, continuous feeding can be achieved through the follow-up pressure of the movable plate and the push of the transmission cylinder, avoiding feeding interruption or poor suction due to insufficient height.

[0018] (2) The auxiliary folding device for forming paper cup holders reduces the risk of jamming through the cooperation of multiple parts: the magnetic side plate on the left side of the hopper makes it easy to open and organize the internal cardboard, avoiding the initial uneven stacking; the bottom plate has a groove with the same size as the inner cavity of the hopper, which can position the cardboard and prevent the cardboard from shifting and causing jamming; the moving end of the transmission cylinder is made of spherical rubber column, which can bend slightly when pushing the cardboard to form a flexible thrust, avoiding rigid pushing that causes the cardboard to jam; in addition, the uniform pressure of the moving plate on the cardboard can prevent the stacked cardboard from being squeezed and deformed due to uneven force, and the gap size between the bottom plate and the hopper is designed to allow only a single cardboard to pass through, further avoiding jamming caused by multiple cardboards being discharged at the same time, and ensuring that the cardboard discharge path in the hopper is smooth. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the silo installation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the conveyor belt installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the folding block installation structure of this utility model;

[0023] In the diagram: 1. Frame; 2. Folding mechanism; 21. Storage component; 211. Hopper; 212. Base plate; 213. Side plate; 214. Movable plate; 215. Buffer spring; 216. Limiting tube; 217. Connecting block; 218. Electric actuator; 219. Transmission cylinder; 22. Conveying component; 221. Support frame; 222. Movable frame; 223. Support spring; 224. Limiting shaft; 225. Conveyor belt; 226. Slide chute; 227. Discharge cylinder; 228. Drive motor; 23. Folding component; 231. Limiting frame; 232. Support groove; 233. Folding block; 234. Folding cylinder; 235. Pressing cylinder; 236. Limiting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an auxiliary folding device for forming paper cup holders includes a frame 1, and a folding mechanism 2 for folding horizontal cardboard into shape is provided above the frame 1. The folding mechanism 2 includes:

[0026] The storage component 21 includes a hopper 211 fixedly installed on the left side of the right column of the frame 1. A base plate 212 is fixedly installed at the bottom of the hopper 211. A side plate 213 is magnetically installed on the left side of the hopper 211. A movable plate 214 is fitted inside the hopper 211. A buffer spring 215 is inserted at the top of the movable plate 214. A limit tube 216 is movably installed at the top of the movable plate 214. A connecting block 217 is fixedly installed at the top of the limit tube 216. One end of the connecting block 217 is connected to an electric push rod 218. A transmission cylinder 219 is provided on the front side of the base plate 212. A notch offset to the right is provided at the bottom of the base plate 212. A groove with the same size as the inner cavity of the hopper 211 is provided on the top of the base plate 212. The structure has a gap between the bottom end of the base plate 212 and the bottom end of the hopper 211. The bottom end of the hopper 211 is inclined at a 45-degree angle. The front side of the hopper 211 is provided with a groove structure that matches the width of the connecting block 217. The movable plate 214 and the hopper 211 are connected in a sliding manner. The limiting tube 216 and the movable plate 214 are connected in a sliding manner. The buffer spring 215 is located outside the cylindrical protrusion at the top of the movable plate 214, and its top end contacts the bottom end of the limiting tube 216. The installation angle of the transmission cylinder 219 is less than 45 degrees, and the installation position of the transmission cylinder 219 matches the position of the groove structure of the base plate 212. The movable end of the transmission cylinder 219 is provided with a rubber column whose end is spherical and points to the groove of the base plate 212.

[0027] Specifically, the horizontal cardboard raw materials are stacked at an incline by the bottom plate 212 installed at the bottom of the hopper 211. The magnetically installed side plate 213 facilitates the addition of cardboard into the hopper 211. The electric push rod 218 drives the movable plate 214 to move downward, so that the movable plate 214 presses down on the cardboard, so that there is a certain relative pressure between the bottom cardboard and the bottom plate 212 to prevent the cardboard from slipping off under the action of gravity. The buffer spring 215 can prevent the movable plate 214 from applying too much pressure to the cardboard. The transmission cylinder 219 drives the rubber column at its movable end to move, so that the end of the rubber column contacts the bottom cardboard and generates a certain pushing force to push the bottom cardboard out from the gap between the bottom plate 212 and the hopper 211 to the top of the conveying assembly 22. During the process of pushing the cardboard, the rubber column will bend to maintain the relative pressure between it and the cardboard.

[0028] The conveying assembly 22, located above the frame 1, is used to transfer cardboard into the folding assembly 23. The conveying assembly 22 includes a support frame 221 fixedly mounted above the frame 1. A movable frame 222 is movably mounted above the support frame 221. A support spring 223 is inserted through the top of the support frame 221. Limiting shafts 224 are inserted between the movable frames 222 and on the inner side of the movable frames 222. A conveyor belt 225 is sleeved on the outer side of the limiting shaft 224. A slide 226 is fixedly mounted on the rear side of the support frame 221. A discharge cylinder 227 is fixedly mounted inside the support frame 221. One end of 24 is connected to a drive motor 228. The front end of the conveyor belt 225 above the support frame 221 is located below the base plate 212. The movable frame 222 and the columnar structure at the top of the support frame 221 form a sliding connection. The conveyor belt 225 between the movable frames 222 and the upper conveyor belt 225 of the support frame 221 are in contact with each other. The chute 226 has rectangular structures on both sides of the contact surface of the two conveyor belts 225. The bottom of the chute 226 has a notch that matches the width of the movable end of the discharge cylinder 227. The movable end of the discharge cylinder 227 is fixedly installed with a rubber column with a flat end.

[0029] Specifically, since the two conveyor belts 225 between the support frame 221 and the movable frame 222 are in contact with each other and a certain relative pressure is maintained between them by the support spring 223, after the cardboard is pushed out by the transmission cylinder 219, it will contact the conveyor belt 225 above the support frame 221 and enter the area between the two conveyor belts 225 under the push of the conveyor belt 225 and the transmission cylinder 219. The support spring 223 can maintain a certain pressure between the upper and lower conveyor belts 225 and the cardboard, so that when the drive motor 228 drives the limit shaft 224 to drive the conveyor belt 225 to rotate, the cardboard between the conveyor belts 225 can be transported backward to the top of the slide chute 226. The slide chute 226 can guide the cardboard to slide down to the top of the folding assembly 23. The discharge cylinder 227 can push the cardboard out from the rear end of the support groove 232 after the cardboard is folded.

[0030] The folding assembly 23, located at the rear of the frame 1, creates creases at the bends of the cardboard to facilitate subsequent fixing operations. The folding assembly 23 includes a limiting frame 231 fixedly mounted above the frame 1. A support groove 232 is fixedly mounted above the limiting frame 231. A folding block 233 is fitted below the support groove 232. A folding cylinder 234 is connected below the folding block 233. A pressing cylinder 235 is located above the support groove 232, and a [missing information - likely a device or component] is fixedly mounted at the bottom of the pressing cylinder 235. The front end of the limiting plate 236 and the support groove 232 are fixedly connected to the bottom end of the slide groove 226. The bottom surface of the support groove 232 is provided with a notch that matches the width of the top protrusion structure of the folding block 233. The inner side of the top surface of the protrusion structure of the folding block 233 is provided with a sloping structure. A certain gap is left between the protrusion structure of the folding block 233 and the support groove 232. The top of the pressing cylinder 235 is fixedly connected to the frame 1. The rear end of the limiting plate 236 is provided with a limiting rod with a spacing greater than the width of the protrusion structure of the folding block 233.

[0031] Specifically, as the cardboard slides through the slide groove 226, its sliding speed increases. The limiting rod at the rear end of the limiting plate 236 initially keeps its bottom end below the bottom surface of the inner cavity of the support groove 232, which can prevent the cardboard from sliding out from the rear side of the support groove 232 during the sliding process and keep the cardboard in the center of the support groove 232. Then, the pressing cylinder 235 drives the limiting plate 236 to move downward and clamp the cardboard with the support groove 232. The edge of the contact surface between the limiting plate 236 and the cardboard is the crease. Then, the folding cylinder 234 drives the folding block 233 to move upward to fold the cardboard.

[0032] Specifically, the electric actuator 218 is model DMDT, the drive motor 228 is model FTD653B-18 / 2.2, and the transmission cylinder 219, discharge cylinder 227, folding cylinder 237, and pressing cylinder 235 are all model CQ2A32, but with different strokes. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] During operation, the electric actuator 218 drives the connecting block 217 to move, and the connecting block 217 drives the limiting tube 216 to move synchronously. The limiting tube 216 acts on the movable plate 214 through the buffer spring 215, causing the movable plate 214 to slide down in the hopper 211 and press down on the stacked cardboard, maintaining stable pressure between the cardboard and the bottom plate 212. Then, the transmission cylinder 219 is activated, and the spherical rubber column at its movable end pushes the cardboard at the bottom of the hopper 211, causing the cardboard to be pushed out from the gap between the bottom plate 212 and the hopper 211 and fall onto the conveyor belt 225 above the support frame 221. The drive motor 228 drives the limit shaft 224 to rotate, and the limit shaft 224 drives the conveyor belt 225 to run. At the same time, the support spring 223 between the support frame 221 and the movable frame 222 provides pressure, so that the upper and lower conveyor belts 225 clamp the cardboard and transport the cardboard backward to the slide chute 226. The cardboard slides into the support groove 232 along the slide chute 226. The limit rod at the rear end of the limit plate 236 blocks the cardboard to prevent it from slipping. Then, the pressing cylinder 235 drives the limit plate 236 to move down and cooperate with the support groove 232 to clamp the cardboard. The folding cylinder 234 drives the folding block 233 to move up. The protruding structure of the folding block 233 passes through the notch of the support groove 232 and presses out a crease at the bending point of the cardboard. After folding, the folding cylinder 234 drives the folding block 233 to move down and reset. Then, the pressing cylinder 235 starts and retracts to its limit state, driving the limiting plate 236 to move up, raising the limiting rod on the rear side of the limiting plate 236 to reserve space for the cardboard to be discharged. Finally, the discharge cylinder 227 starts, and the flat rubber column at its movable end pushes the formed cardboard out from the rear end of the support groove 232, completing one folding operation. After the formed cardboard is discharged, the limiting plate 236 resets.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary folding device for forming paper cup holders, comprising a frame (1), characterized in that: A folding mechanism (2) for folding horizontal cardboard into shape is provided above the frame (1), the folding mechanism (2) including: The storage component (21) includes a hopper (211) fixedly installed on the left side of the right column of the frame (1). A base plate (212) is fixedly installed at the bottom of the hopper (211). A side plate (213) is magnetically installed on the left side of the hopper (211). A movable plate (214) is fitted inside the hopper (211). A buffer spring (215) is inserted at the top of the movable plate (214). A limit tube (216) is movably installed at the top of the movable plate (214). A connecting block (217) is fixedly installed at the top of the limit tube (216). An electric push rod (218) is connected to one end of the connecting block (217). A transmission cylinder (219) is provided on the front side of the base plate (212). A conveying assembly (22) is positioned above the frame (1) to transfer cardboard into the folding assembly (23); The folding assembly (23), located on the rear side of the frame (1), is used to create creases at the bends of the cardboard to facilitate subsequent fixing operations.

2. The auxiliary folding device for forming a paper cup holder according to claim 1, characterized in that: The conveying assembly (22) includes a support frame (221) fixedly installed above the frame (1), a movable frame (222) movably installed above the support frame (221), a support spring (223) inserted through the top of the support frame (221), a limiting shaft (224) inserted through the movable frames (222) and the inner side of the movable frames (222), a conveyor belt (225) sleeved on the outer side of the limiting shaft (224), a slide groove (226) fixedly installed on the rear side of the support frame (221), a discharge cylinder (227) fixedly installed inside the support frame (221), and a drive motor (228) connected to one end of the limiting shaft (224).

3. The auxiliary folding device for forming a paper cup holder according to claim 2, characterized in that: The folding assembly (23) includes a limiting frame (231) fixedly installed above the frame (1). A support groove (232) is fixedly installed above the limiting frame (231). A folding block (233) is fitted below the support groove (232). A folding cylinder (234) is connected below the folding block (233). A pressing cylinder (235) is provided above the support groove (232). A limiting plate (236) is fixedly installed at the bottom of the pressing cylinder (235).

4. The auxiliary folding device for forming a paper cup holder according to claim 1, characterized in that: The bottom of the base plate (212) has a notch offset to the right. A groove structure with the same dimensions as the inner cavity of the hopper (211) is provided on the top of the base plate (212). A gap is left between the bottom end of the base plate (212) and the bottom end of the hopper (211). The bottom end of the hopper (211) is inclined at a 45-degree angle. The front side of the hopper (211) has a groove structure matching the width of the connecting block (217). The movable plate (214) and the hopper (211) form a sliding connection. The limiting tube (216) and the movable plate (214) form a sliding connection. The buffer spring (215) is located on the outside of the cylindrical protrusion structure at the top of the movable plate (214), and its top end contacts the bottom end of the limiting tube (216). The installation angle of the transmission cylinder (219) is less than 45 degrees, and the installation position of the transmission cylinder (219) matches the position of the groove structure of the base plate (212). The movable end of the transmission cylinder (219) is provided with a rubber column whose end is spherical and points to the groove of the base plate (212).

5. The auxiliary folding device for forming a paper cup holder according to claim 2, characterized in that: The front end of the conveyor belt (225) above the support frame (221) is located below the base plate (212). The movable frame (222) and the columnar structure at the top of the support frame (221) form a sliding connection. The conveyor belt (225) between the movable frames (222) and the upper conveyor belt (225) of the support frame (221) are in contact with each other. The chute (226) has rectangular structures on both sides of the contact surface of the two conveyor belts (225). The bottom of the chute (226) has a notch that matches the width of the movable end of the discharge cylinder (227). The movable end of the discharge cylinder (227) is fixedly installed with a rubber column with a flat end.

6. The auxiliary folding device for forming a paper cup holder according to claim 3, characterized in that: The front end of the support groove (232) is fixedly connected to the bottom end of the slide groove (226). The bottom surface of the support groove (232) is provided with a notch that matches the width of the top protrusion structure of the folding block (233). The inner side of the top surface of the protrusion structure of the folding block (233) is provided with a sloping structure. A certain gap is left between the protrusion structure of the folding block (233) and the support groove (232). The top of the pressing cylinder (235) is fixedly connected to the frame (1). The rear end of the limiting plate (236) is provided with a limiting rod with a spacing greater than the width of the protrusion structure of the folding block (233).

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