Automatic folding and forming machine for packaging boxes and working method thereof

Abstract

The present application relates to a kind of automatic folding forming machine of packaging box, including sequentially arranged feeding device, material moving device and sealing discharging device along the conveying direction of packaging box, and the packaging box of feeding device output end is transported to sealing discharging device place by material moving device and is sequentially sealed, discharging work is carried out.The present application is reasonable in design, simple in structure, strong in versatility, easy to use, can complete the automatic folding forming of a type multiple different sizes of packaging box, and the automatic feeding of packaging box is realized by using mechanical transmission, economic and environmental protection, and the present professional adopts modular design, simple structure, is convenient to install and maintain, relatively low cost, and according to need can be connected with production line, very flexible and convenient.

Description

Technical Field

[0001] This invention relates to an automatic folding and forming machine for packaging boxes and its working method. Background Technology

[0002] Packaging boxes are ubiquitous in daily life. To meet the packaging needs of different products, packaging box manufacturers design and produce various types of boxes according to customer requirements, resulting in a wide variety of packaging boxes on the market. As the final step before a product is sold, packaging plays a crucial role in sales, influencing a customer's first impression. Therefore, product packaging is of paramount importance to businesses. However, how to achieve accurate and efficient packaging amidst the diverse array of boxes is a question worth exploring. Currently, automatic forming machines are available for different types of packaging boxes, but their structures are relatively complex, installation and maintenance are inconvenient, and their versatility is poor. Often, different sizes of the same type of packaging box require different types of forming machines, causing inconvenience and being relatively less energy-efficient and environmentally friendly. Summary of the Invention

[0003] The present invention improves upon the above-mentioned problems. Specifically, the technical problem to be solved by the present invention is to provide an automatic folding and forming machine for packaging boxes, which is easy to use and can automatically fold, form and seal packaging boxes of a certain type and various sizes. At the same time, it adopts a mechanical transmission method to realize the automatic feeding of packaging boxes, which is economical and environmentally friendly.

[0004] The present invention is configured as follows: it includes a feeding device, a transferring device, and a sealing and unloading device arranged sequentially along the conveying direction of the packaging box. The transferring device conveys the packaging box output from the feeding device to the sealing and unloading device, where it is sealed and unloaded in sequence.

[0005] Furthermore, the feeding device includes a feeding rack and a lifting device disposed on the top of the feeding rack, and a storage structure for placing packaging boxes is disposed above the lifting device.

[0006] Furthermore, the lifting device includes a lifting plate and columns located at the four corners of the lifting plate. The columns pass through the column plate at the top of the loading rack. An adjusting screw is provided below the middle of the lifting plate. The adjusting screw passes through the spiral fixing frame located in the middle of the loading rack and extends upward to connect with the bottom of the lifting plate. An adjusting handle is provided below the adjusting screw.

[0007] Furthermore, the storage structure includes a base plate and an L-shaped pad mounted on the base plate. Tailstock A, tailstock B, tailstock C, and tailstock D are located at the four corners of the base plate. Guide rails are provided between tailstock A and tailstock C, and between tailstock D and tailstock D. Push block structures are fitted onto the two guide rails. Pulleys are provided on the outer sides of tailstock C and tailstock D. Thin ropes are provided on the front and rear sides of the push block structures. A counterweight limiting tube is provided on the front and rear sides of the unloading frame. One end of the thin rope is connected to the push block structure, and the other end of the thin rope passes through the corresponding pulley and connects to the counterweight body located within the counterweight limiting tube. Connection; a movable limiting rod is provided between the inner sides of the tailstock A and tailstock C, and limiting blocks are provided at both ends of the limiting rod. Both tailstock A and tailstock C are provided with square through holes for cooperating with the limiting blocks; an L-shaped top limiting plate is installed on the top of the tailstock A and tailstock C, and a discharge limiting plate is provided behind the right side of the L-shaped pad. A guide groove is provided behind the discharge limiting plate. The push block structure, L-shaped pad, limiting rod, and L-shaped pad form a storage space for placing packaging boxes. The output end of the storage space is provided with a discharge port communicating with the guide groove.

[0008] Furthermore, the material transfer device includes a frame and a material transfer slide rail mounted on the frame. A material transfer seat that can move along the length of the material transfer slide rail is provided on the material transfer slide rail. The movable seat is driven to move back and forth by a material transfer cylinder mounted on the frame. A suction nozzle telescopic plate is provided on the side of the material transfer seat. A material-taking suction nozzle is installed on the side of the suction nozzle telescopic plate. An L-shaped auxiliary pushing plate is provided in front of the fine nozzle telescopic plate. The suction nozzle telescopic plate is driven by a material-taking cylinder mounted on the movable seat.

[0009] Furthermore, the sealing and feeding device includes a fixed base and a box positioning seat and a housing with an opening at the front, arranged sequentially from front to back on the fixed base. A feeding hopper is provided on the left side of the box positioning seat. A vertically extendable lower push rod seat is provided between the feeding hopper and the box positioning seat. A support space for supporting the packaging box is formed between the lower push rod seat and the box positioning seat. A push rod groove is provided on one side of the fixed base. A push rod slider is provided on the side of the lower push rod seat for sliding cooperation with the push rod groove. The lower push rod seat is driven by a feeding cylinder.

[0010] Furthermore, a suction cylinder is provided on the left side of the support space, and a suction push block is provided at the output end of the suction cylinder. An elastic suction nozzle is provided on the inner side of the suction push block. An upper V-shaped push plate is provided above the support space, and the upper V-shaped push plate is driven to move up and down by a pressing cylinder.

[0011] Furthermore, a folding block is installed on the left side surface inside the housing, and an L-shaped folding block is provided in the middle of the folding block. A page pusher is provided on the lower left side inside the housing, a left page pusher is provided on the upper left side inside the housing, a right page pusher is provided on the lower right side inside the housing, and a page pressing pusher is provided on the upper right side inside the housing. A tail hinge structure is provided at the rear of the housing. The tail hinge structure includes a U-shaped guide block and two insert plates arranged sequentially from back to front. An arc-shaped groove is provided below the insert plates, and the insert plates are driven to move by a tail page cylinder.

[0012] Furthermore, the page pusher is driven by a page pusher cylinder installed outside the housing, the left page pusher is driven by a left page cylinder installed outside the housing, the right page pusher is driven by a right page cylinder installed outside the housing, and the page presser is driven by a page presser cylinder installed outside the housing.

[0013] Furthermore, the working method of the automatic folding and forming machine for packaging boxes includes the following steps: (1) Place a stack of compressed packaging boxes in the storage space of the storage structure. According to the size of the packaging boxes, adjust the height of the lifting plate by adjusting the screw to drive the packaging boxes to move up and down. At the same time, adjust the front and rear positions of the limit rod to limit and adjust the packaging boxes to a suitable feeding position; (2) The initial position of the material handling cylinder of the material handling device is in a retracted state. When handling the material, it extends and drives the material handling nozzle to extend and stick to the outermost packaging box body located at the output end of the storage space. The material handling nozzle sucks air and sucks the right side of the packaging box to prevent it from falling off during the material handling process; then, the material handling cylinder... The packaging box moves towards the sealing and unloading device. The packaging box moves from the outlet of the storage space along the guide groove to the input end of the sealing and unloading device. The sealing end of the packaging box is inserted into the shell. The bottom of the packaging box contacts the support space formed by the lower push rod seat and the box positioning seat. (3) When the packaging box is in the support space, the suction cylinder drives the suction nozzle to suck the left side of the packaging box. Then the pressing cylinder extends and drives the upper V-shaped push plate to press down the box body of the packaging box. At the same time, the suction cylinder and the picking cylinder retract. The suction nozzle and the picking nozzle on the left and right sides of the packaging box pull the left and right sides of the packaging box towards the outside of the packaging box, so that the packaging box becomes open. (4) The pressing cylinder extends and drives the pressing push block to press the tail page of the packaging box down onto the folding block, thereby folding the tail page and forming a folded edge. After folding, the pressing cylinder and pressing push block are reset. (5) The left and right page cylinders extend and drive the left and right page push blocks to push the left and right pages of the packaging box inward. Then the tail page cylinder extends and drives the U-shaped guide block and insert plate to move to the right, so that one side of the insert plate is close to the box body and inserted into the box body. The left and right page cylinders and the left and right page push blocks are reset. The pushing cylinder extends and drives the pushing block to push the tail page along the arc groove below the insert plate and insert it into the box body. At this time, the tail page cylinder and the U-shaped guide block are reset and drive the insert plate from the box body. (6) The inside of the packaging box is pulled out to complete the sealing of the packaging box; (7) Finally, the feeding cylinder retracts, driving the lower push rod seat to move down along the push rod slide, the left side of the packaging box loses support, and the packaging box slides down along the feeding hopper to complete the feeding of the packaging box; (8) In step (2), after the outermost packaging box is transported out by the feeding device, the weighted body moves down along the weight limit tube by the thickness of one packaging box under the action of gravity, and pushes the packaging box to the output end of the discharge by the thin rope to replenish the material, so that the second packaging box that was originally in the output end of the storage space becomes the outermost packaging box. At the same time, it can make the stacked packaging boxes in a compressed state.

[0014] Compared with the prior art, the present invention has the following advantages: The device has a simple structure, reasonable design, and is easy to use. By setting a lifting device, the vertical position of the entire packaging box can be adjusted up and down to adapt to the positioning and feeding of packaging boxes of different sizes. By adjusting the position of the limiting block on the limiting rod in the square through hole, the position of the limiting rod can be adjusted to adapt to the limiting of packaging boxes of different lengths. After the packaging box is placed on the L-shaped pad, the weight will drop by the thickness of the packaging box each time the material transfer device removes a packaging box. The thin wire drives the push block structure to push the packaging box to move towards the output end of the material to replenish the material. The mechanical transmission method of the packaging box forward replenishment realizes the automatic feeding of the packaging box, which is very economical and environmentally friendly. At the same time, it can also keep the stacked packaging boxes in a compacted state and prevent them from tilting due to gaps.

[0015] The packaging box is conveyed to the sealing and unloading device by the material transfer device. When the packaging box is in the support space, the suction cylinder drives the suction nozzle to clamp the left side of the packaging box. Then, the pressing cylinder extends and drives the upper V-shaped push plate to press down the packaging box. At the same time, the suction cylinder and the picking cylinder retract, and the suction nozzles on the left and right sides of the packaging box pull the left and right sides of the packaging box outward, making the packaging box open. The pressing cylinder extends and drives the pressing push block to press down the tail page of the packaging box onto the folding block, realizing the folding of the tail page and forming the tail page fold. After the folding is completed, the pressing cylinder and the pressing push block reset. The left and right page cylinders extend. The left and right page pushers respectively drive the left and right page pushers to fold the left and right pages of the packaging box inward. Then, the tail page cylinder extends, driving the U-shaped guide block and insert plate to move to the right, so that one side of the insert plate is inserted into the box body. The left and right page cylinders and the left and right page pushers reset. The pusher cylinder extends, driving the pusher block to push the tail page along the arc groove below the insert plate into the box body. At this time, the tail page cylinder and the U-shaped guide block reset, driving the insert plate to be pulled out from the inside of the packaging box, completing the sealing of the packaging box. By retracting the discharge cylinder, the lower pusher seat moves downward along the pusher slide groove. The left side of the packaging box loses support, and the packaging box slides down along the discharge hopper, completing the discharge of the packaging box.

[0016] This invention can automatically fold and form packaging boxes of a certain type and various sizes. It adopts a modular design, with each device being relatively independent and simple in structure. Key parts of the device also use replaceable modules, which facilitates installation and maintenance and reduces costs. Moreover, this invention can be connected to other production lines as needed to improve the overall level of automation, making it very flexible and convenient. Attached Figure Description

[0017] Figure 1 Three-dimensional representation of the present invention Figure 1 ;

[0018] Figure 2 Three-dimensional representation of the present invention Figure 2 ;

[0019] Figure 3 This is a top view of an embodiment of the present invention;

[0020] Figure 4 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0022] Figure 6 This is a front view of the feeding device according to an embodiment of the present invention;

[0023] Figure 7 The feeding device of this invention is three-dimensional. Figure 1 ;

[0024] Figure 8 The feeding device of this invention is three-dimensional. Figure 2 ;

[0025] Figure 9 for Figure 8 Enlarged view of part B in the image;

[0026] Figure 10 The feeding device of this invention is three-dimensional. Figure 3 ;

[0027] Figure 11 for Figure 10 A magnified view of part C in the image;

[0028] Figure 12 This is a schematic diagram of the material transfer device and sealing and unloading device according to an embodiment of the present invention. Figure 1 ;

[0029] Figure 13 This is a schematic diagram of the material transfer device and sealing and unloading device according to an embodiment of the present invention. Figure 2 ;

[0030] Figure 14 for Figure 12 Enlarged view of part D in the image;

[0031] Figure 15 This is a schematic diagram of the sealing and feeding device according to an embodiment of the present invention. Figure 1 ;

[0032] Figure 16 This is a schematic diagram of the sealing and feeding device according to an embodiment of the present invention. Figure 2 ;

[0033] Figure 17 This is a schematic diagram of the sealing and feeding device according to an embodiment of the present invention. Figure 3 ;

[0034] Figure 18 This is a schematic diagram of the sealing and feeding device according to an embodiment of the present invention. Figure 4 ;

[0035] Figure 19 This is a schematic diagram of the internal structure of the sealing and feeding device according to an embodiment of the present invention;

[0036] Figure 20 This is a schematic diagram of the sealing and feeding device according to an embodiment of the present invention;

[0037] Figure 21 This is a schematic diagram of the compressed state of the packaging box according to an embodiment of the present invention;

[0038] Figure 22 This is a schematic diagram of the packaging box in the open state according to an embodiment of the present invention;

[0039] Figure 23 This is a schematic diagram showing the completed sealing state of the packaging box according to an embodiment of the present invention;

[0040] In the diagram: 1-Feeding device, 11-Feeding rack, 12-Lifting device, 121-Lifting plate, 122-Column, 123-Column plate, 124-Adjusting screw, 125-Screw fixing frame, 126-Adjusting handle; 13-Storage structure, 1301-Base plate, 1302-L-shaped pad, 1303-Tailstock A, 1304-Tailstock B, 1305-Tailstock C, 1306-Tailstock D, 1307-Guide rail, 1308-Push block structure, 1309-Pulley, 1310-Screw, 1 311-Flag limiting tube, 1312-Flag body, 1313-Push plate, 1314-Protrusion, 1315-Limiting rod, 1316-Limiting block, 1317-Square through hole, 1318-Top limiting plate, 1319-Discharge limiting plate, 1320-Guide trough, 1321-Storage space, 1322-Discharge port, 14-Universal caster; 2-Transfer device, 201-Frame, 202-Transfer rail, 203-Transfer seat, 204-Transfer cylinder, 205-Suction nozzle telescopic plate, 206 207-Feeding nozzle, 208-Auxiliary pusher plate, 209-Feeding cylinder; 3-Sealing and unloading device, 301-Fixed base, 302-Box positioning base, 303-Shell, 304-Unloading hopper, 305-Lower push rod base, 306-Supporting space, 307-Push rod slide, 308-Push rod slider, 309-Unloading cylinder, 310-Suction cylinder, 311-Suction push block, 312-Suction nozzle, 313-Upper V-shaped pusher plate, 314-Pressure cylinder, 315-Folding stop block, 316-L-shaped Folding block, 317-Push-page block, 318-Left side page push-page block, 319-Right side page push-page block, 320-Press-page push-page block, 321-Tail hinge structure, 3211-U-shaped guide block, 3212-Insertion plate, 3213-Arc groove, 3214-Tail page cylinder, 322-Push-page cylinder, 323-Left side page cylinder, 324-Right side page cylinder, 325-Press-page cylinder; 4-Packaging box, 401-Box body, 402-Left side page, 403-Right side page, 404-Tail box page, 405-Tail box page folding edge. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0042] Example: Refer to Appendix Figure 1-23 As shown, an automatic folding and forming machine for packaging boxes is provided, including a feeding device 1, a transferring device 2, and a sealing and unloading device 3 arranged sequentially along the conveying direction of the packaging box 4. The transferring device conveys the packaging box output from the feeding device to the sealing and unloading device, and performs sealing and unloading operations in sequence.

[0043] The aforementioned feeding device is an independent module, installed on an independent feeding frame. The transferring device and the sealing and unloading device are fixed on the same frame, with the transferring device located between the feeding device and the sealing and unloading device.

[0044] The aforementioned packaging box 4 includes a box body 401 and openings on both sides of the box body. Each opening has a left side page 402, a right side page 403, and a tail page 404. The tail page has a tail page folded edge 405. One of the openings is automatically packaged by an automatic folding and forming machine, which folds the left and right side pages, flips the tail page up, and inserts the tail page folded edge into the opening of the box body, thereby closing one opening of the box body.

[0045] In this embodiment, the feeding device 1 includes a feeding rack 11 and a lifting device 12 disposed on the top of the feeding rack. Above the lifting device is a storage structure 13 for placing packaging boxes.

[0046] The aforementioned lifting device 12 includes a lifting plate 121 and columns 122 located at the four corners of the lifting plate. The columns pass through the column plate 123 located at the top of the loading rack. An adjusting screw 124 is located below the middle of the lifting plate. The adjusting screw passes through the spiral fixing frame 125 located in the middle of the loading rack and extends upward to connect with the bottom of the lifting plate. An adjusting handle 126 is located below the adjusting screw.

[0047] By rotating the adjustment handle, the lifting plate can be moved up and down, thereby moving the packaging boxes located on the storage structure up and down to accommodate the positioning and feeding of packaging boxes of different sizes.

[0048] The aforementioned storage structure 13 includes a base plate 1301 and an L-shaped pad 1302 disposed on the base plate. Tail seats A1303, B1304, C1305 and D1306 are provided at the four corners of the base plate. Guide rails 1307 are provided between tail seats A and C, and between tail seats D. Push block structures 1308 are sleeved on the two guide rails. Pulleys 1309 are provided on the outer sides of tail seats C and D. Thin ropes 1310 are provided on the front and rear sides of the push block structures. A counterweight limiting tube 1311 is provided on the front and rear sides of the unloading frame. One end of the thin rope is connected to the push block structure, and the other end of the thin rope is connected to the counterweight body 1312 disposed in the counterweight limiting tube through the pulley on the corresponding side.

[0049] After the packaging boxes are placed on the L-shaped pad, the weight will drop by the thickness of the packaging box each time the transfer device removes a packaging box. The weight will then move the packaging box towards the output end of the material discharge via a thin wire. This also keeps the stacked packaging boxes in a compacted state and prevents them from tilting due to gaps.

[0050] The aforementioned push block structure includes a push plate 1313 and a protrusion 1314 disposed on the inner side of the push plate.

[0051] A movable limiting rod 1315 is provided between the inner sides of tailstock A and tailstock C. Limiting blocks 1316 are provided at both ends of the limiting rod. Both tailstock A and tailstock C have square through holes 1317 for engaging with the limiting blocks. By adjusting the position of the limiting blocks within the square through holes, the position of the limiting rod can be adjusted to accommodate packaging boxes of different lengths.

[0052] The top of the tailstock A and tailstock C are equipped with an L-shaped top limiting plate 1318. A discharge limiting plate 1319 is provided behind the right side of the L-shaped pad. A guide groove 1320 is provided behind the discharge limiting plate. The depth of the guide groove is half the height of the packaging box. The push block structure, the L-shaped pad, the limiting rod, and the L-shaped pad form a storage space 1321 for placing the packaging box. The output end of the storage space is provided with a discharge port 1322 that communicates with the guide groove. The gap of the discharge port is greater than the thickness of one packaging box but less than the thickness of two packaging boxes, which can ensure that one packaging box is output at a time.

[0053] To facilitate the movement of the automatic folding and forming machine for packaging boxes, casters 14 are installed on the feeding rack and under the machine frame.

[0054] In this embodiment, the material transfer device 2 includes a frame 201 and a material transfer slide rail 202 mounted on the frame. A material transfer seat 203 is provided on the material transfer slide rail and can move along the length of the material transfer slide rail. The movable seat is driven to move back and forth by a material transfer cylinder 204 mounted on the frame. A suction nozzle telescopic plate 205 is provided on the side of the material transfer seat. A material picking suction nozzle 206 is installed on the side of the suction nozzle telescopic plate. An L-shaped auxiliary pushing plate 207 is provided in front of the fine nozzle telescopic plate. The suction nozzle telescopic plate is driven to extend and retract by a material picking cylinder 208 mounted on the movable seat.

[0055] The aforementioned transfer cylinder can be a rodless cylinder.

[0056] The initial position of the material-picking cylinder is in a retracted state. When picking up materials, it extends, causing the material-picking nozzle to extend and adhere tightly to the packaging box. At the same time, the material-picking nozzle inhales air to further tighten the packaging box and prevent it from falling off during the material transfer process. After the material is picked up, the material-transferring cylinder moves the packaging box towards the sealing and unloading device. The packaging box located on the outermost side of the material storage space output end moves along the guide groove to the input end of the sealing and unloading device. The sealing end of the packaging box is inserted into the housing, and the bottom of the packaging box contacts the support space formed by the lower push rod seat and the box positioning seat.

[0057] In this embodiment, the sealing and feeding device 3 includes a fixed base 301 and a box positioning base 302 and a housing 303 with an opening at the front, which are arranged sequentially from front to back on the fixed base. A feeding hopper 304 is provided on the left side of the box positioning base. A vertically extendable lower push rod seat 305 is provided between the feeding hopper and the box positioning base. A support space 306 for supporting the packaging box is formed between the lower push rod seat and the box positioning base. A push rod groove 307 is provided on one side of the fixed base. A push rod slider 308 is provided on the side of the lower push rod seat for sliding cooperation with the push rod groove. The lower push rod seat is driven by a feeding cylinder 309.

[0058] The push rod groove mentioned above is a V-shaped groove.

[0059] A suction cylinder 310 is provided on the left side of the aforementioned support space. A suction push block 311 is provided at the output end of the suction cylinder. A suction nozzle 312 with a certain elasticity is provided on the inner side of the suction push block. An upper V-shaped push plate 313 is provided above the support space. The upper V-shaped push plate is driven to move up and down by a pressing cylinder 314.

[0060] The aforementioned housing is located behind the supporting space. A folding stop block 315 is installed on the left side surface inside the housing. An L-shaped folding block 316 is provided in the middle of the folding stop block. A folding groove is formed in front of the L-shaped folding block to fold the tail page of the packaging box. A pusher block 317 is provided on the lower left side inside the housing. A left page pusher block 318 is provided on the upper left side inside the housing. A right page pusher block 319 is provided on the lower right side inside the housing. A pressure pusher block 320 is provided on the upper right side inside the housing. A tail hinge structure 321 is provided at the rear of the housing. The tail hinge structure includes a U-shaped guide block 3211 and two insert plates 3212 arranged sequentially from back to front. An arc-shaped groove 3213 is provided below the insert plates. The insert plates are driven to move by a tail page cylinder 3214. The side of the insert plate closest to the box body is thinner to facilitate insertion into the gap between the box body and the left and right side pages.

[0061] The aforementioned insert plate has a relatively thin, curved front end that extends forward, allowing it to be inserted into the box body from the side that is close to the box body. It serves as a guide when the end page of the packaging box is inserted.

[0062] The aforementioned push-page blocks, left-side push-page blocks, right-side push-page blocks, and press-page blocks are equipped with chamfers.

[0063] The aforementioned page pusher is driven by a page pusher cylinder 322 installed outside the housing, the left page pusher is driven by a left page cylinder 323 installed outside the housing, the right page pusher is driven by a right page cylinder 324 installed outside the housing, and the page presser is driven by a page presser cylinder 325 installed outside the housing.

[0064] The aforementioned push-page cylinder, left-side page cylinder, right-side page cylinder, and press-page cylinder are all mounted on the outside of the housing via cylinder seat 326, and the housing is provided with corresponding clearance grooves.

[0065] In this embodiment, during operation: (1) A stack of compressed packaging boxes is placed in the storage space of the storage structure. According to the size of the packaging boxes, the height of the lifting plate is adjusted by adjusting the screw, which drives the packaging boxes to move up and down. At the same time, the front and rear positions of the limiting rod are adjusted to limit and adjust the packaging boxes to a suitable feeding position; (2) The initial position of the material handling cylinder of the material handling device is in a retracted state. When handling the material, it is extended, which drives the material handling nozzle to extend and stick to the outermost packaging box body located at the output end of the storage space. The material handling nozzle sucks air and sucks the right side of the packaging box to prevent it from falling off during the material handling process; then, the material handling cylinder drives the packaging box toward the sealing and feeding device. The packaging box moves from the outlet of the storage space along the guide groove to the input end of the sealing and unloading device. The sealing end of the packaging box is inserted into the shell. The bottom of the packaging box contacts the support space formed by the lower push rod seat and the box positioning seat. (3) When the packaging box is in the support space, the suction cylinder drives the suction nozzle to suck the left side of the packaging box body. Then the pressing cylinder extends and drives the upper V-shaped push plate to press down the box body of the packaging box. At the same time, the suction cylinder and the picking cylinder retract. Through the suction nozzles and picking nozzles on the left and right sides of the packaging box, the left and right sides of the packaging box body are pulled towards the outside of the packaging box, so that the packaging box becomes open. (4) The pressing cylinder extends and drives the suction nozzles to pull the left and right sides of the packaging box body towards the outside of the packaging box. The pressing pusher blocks press the end page of the packaging box down onto the folding block, thereby folding the end page and forming a folded edge. After folding, the pressing cylinder and pressing pusher blocks are reset. (5) The left and right page cylinders extend and drive the left and right page pusher blocks to push the left and right pages of the packaging box inward. Then the end page cylinder extends and drives the U-shaped guide block and insert plate to move to the right, so that one side of the insert plate is close to the box body and inserted into the box body. The left and right page cylinders and the left and right page pusher blocks are reset. The pushing cylinder extends and drives the pushing block to push the end page along the arc groove below the insert plate and insert it into the box body. At this time, the end page cylinder and the U-shaped guide block are reset and drive the insert plate from the packaging box. (6) The internal part is pulled out to complete the sealing of the packaging box; (7) Finally, the feeding cylinder retracts, which drives the lower push rod seat to move down along the push rod slide. The left side of the packaging box loses support, and the packaging box slides down along the feeding hopper to complete the feeding of the packaging box; (8) In step (2), after the outermost packaging box is transported out by the feeding device, the weighted body moves down along the weight limit tube by the thickness of one packaging box under the action of gravity. The weighted body pulls the push block structure through the thin rope to push the packaging box to move towards the output end of the discharge to replenish the material. This makes the second packaging box, which was originally in the output end of the storage space, become the outermost packaging box. At the same time, it can make the stacked packaging boxes in a compressed state.

[0066] It is worth noting that after the packaging box is sealed, the suction nozzle and the pick-up nozzle are reset.

[0067] Unless otherwise stated, if any of the technical solutions disclosed in this invention specify a numerical range, then the disclosed numerical range is a preferred numerical range. Anyone skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this invention discloses only some numerical values ​​to illustrate the technical solutions of this invention. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this invention.

[0068] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0069] Meanwhile, if the present invention discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, fixed connection can be understood as: a fixed connection that can be detached (e.g., using bolts or screws), or a fixed connection that cannot be detached (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0070] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0071] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured by a one-piece molding process.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. An automatic folding and forming machine for packaging boxes, characterized in that, It includes a feeding device, a transferring device, and a sealing and unloading device arranged sequentially along the conveying direction of the packaging box. The transferring device conveys the packaging box output from the feeding device to the sealing and unloading device, and seals and unloads it sequentially. A folding block is installed on the left side of the inner surface of the sealing and feeding device housing. The folding block has an L-shaped folding block in the middle. A pusher block is provided on the lower left side of the inner surface of the housing. A left pusher block is provided on the upper left side of the inner surface of the housing. A right pusher block is provided on the lower right side of the inner surface of the housing. A pressing pusher block is provided on the upper right side of the inner surface of the housing. A tail hinge structure is provided at the rear of the inner surface of the housing. The tail hinge structure includes a U-shaped guide block and two insert plates arranged sequentially from back to front. An arc-shaped groove is provided below the insert plates. The insert plates are driven to move by the tail hinge cylinder. A suction cylinder is provided on the left side of the support space of the sealing and feeding device. The output end of the suction cylinder is provided with a suction push block. The inner side of the suction push block is provided with a flexible suction nozzle. An upper V-shaped push plate is provided above the support space. The upper V-shaped push plate is driven to move up and down by a pressing cylinder. The page pusher is driven by a page pusher cylinder installed outside the housing, the left page pusher is driven by a left page cylinder installed outside the housing, the right page pusher is driven by a right page cylinder installed outside the housing, and the page presser is driven by a page presser cylinder installed outside the housing.

2. The automatic folding and forming machine for packaging boxes according to claim 1, characterized in that, The feeding device includes a feeding rack and a lifting device located on top of the feeding rack. Above the lifting device is a storage structure for placing packaging boxes.

3. The automatic folding and forming machine for packaging boxes according to claim 2, characterized in that, The lifting device includes a lifting plate and columns located at the four corners of the lifting plate. The columns pass through the column plate at the top of the loading rack. An adjusting screw is located at the lower center of the lifting plate. The adjusting screw passes through the spiral fixing frame located in the middle of the loading rack and extends upward to connect with the bottom of the lifting plate. An adjusting handle is located below the adjusting screw.

4. The automatic folding and forming machine for packaging boxes according to claim 2, characterized in that, The storage structure includes a base plate and an L-shaped pad on the base plate. The base plate has tailstocks A, B, C and D at its four corners. Guide rails are provided between tailstocks A and C and between tailstocks D. Push block structures are sleeved on the two guide rails. Pulleys are provided on the outer sides of tailstocks C and D. Thin ropes are provided on the front and rear sides of the push block structures. The unloading frame has counterweight limiting tubes on the front and rear sides. One end of the thin rope is connected to the push block structure, and the other end of the thin rope is connected to the counterweight body in the counterweight limiting tube through the pulley on the corresponding side. A movable limiting rod is provided between the inner sides of tailstock A and tailstock C. The limiting rod has limiting blocks at both ends. Both tailstock A and tailstock C have square through holes for cooperating with the limiting blocks. An L-shaped top limiting plate is installed on the top of tailstock A and tailstock C. A discharge limiting plate is provided behind the right side of the L-shaped pad. A guide groove is provided behind the discharge limiting plate. The push block structure, L-shaped pad, limiting rod, and L-shaped pad form a storage space for placing packaging boxes. The output end of the storage space has a discharge port that communicates with the guide groove.

5. The automatic folding and forming machine for packaging boxes according to claim 1, characterized in that, The material transfer device includes a frame and a material transfer slide rail mounted on the frame. A material transfer seat is provided on the material transfer slide rail and can move along the length of the material transfer slide rail. The material transfer seat is driven to move back and forth by a material transfer cylinder mounted on the frame. A suction nozzle telescopic plate is provided on the side of the material transfer seat. A material picking suction nozzle is installed on the side of the suction nozzle telescopic plate. An L-shaped auxiliary pushing plate is provided in front of the suction nozzle telescopic plate. The suction nozzle telescopic plate is driven by a material picking cylinder mounted on the material transfer seat.

6. The automatic folding and forming machine for packaging boxes according to claim 1, characterized in that, The sealing and feeding device includes a fixed base and a box positioning seat and a shell with an opening at the front, arranged sequentially from front to back on the fixed base. A feeding hopper is provided on the left side of the box positioning seat. A vertically extendable lower push rod seat is provided between the feeding hopper and the box positioning seat. A support space for supporting the packaging box is formed between the lower push rod seat and the box positioning seat. A push rod groove is provided on one side of the fixed base. A push rod slider is provided on the side of the lower push rod seat for sliding cooperation with the push rod groove. The lower push rod seat is driven by a feeding cylinder.

7. The working method of an automatic folding and forming machine for packaging boxes according to claim 6, characterized in that, The steps are as follows: (1) Place a stack of compressed packaging boxes in the storage space of the storage structure. According to the size of the packaging boxes, adjust the height of the lifting plate by adjusting the screw to drive the packaging boxes to move up and down. At the same time, adjust the front and back positions of the limit rod to limit and adjust the packaging boxes to a suitable feeding position; (2) The initial position of the material handling cylinder of the material handling device is in a retracted state. When handling the material, it extends and drives the material handling nozzle to extend and stick to the outermost packaging box body located at the output end of the storage space. The material handling nozzle sucks air and sucks the right side of the packaging box to prevent it from falling off during the material handling process; then, the material handling cylinder drives the packaging box towards the sealing and feeding device. The packaging box moves from the outlet of the storage space along the guide groove to the input end of the sealing and unloading device. The sealing end of the packaging box is inserted into the shell. The bottom of the packaging box contacts the support space formed by the lower push rod seat and the box positioning seat. (3) When the packaging box is in the support space, the suction cylinder drives the suction nozzle to suck the left side of the packaging box body. Then the pressing cylinder extends and drives the upper V-shaped push plate to press down the box body of the packaging box. At the same time, the suction cylinder and the picking cylinder retract. Through the suction nozzles and picking nozzles on the left and right sides of the packaging box, the left and right sides of the packaging box body are pulled towards the outside of the packaging box, so that the packaging box becomes open. (4) The pressing cylinder extends to drive the pressing cylinder. The pusher presses the end page of the packaging box down onto the folding block, folding the end page and forming a folded edge. After folding, the pressing cylinder and the pressing pusher reset. (5) The left and right page cylinders extend and drive the left and right page pushers to push the left and right pages of the packaging box inward. Then the end page cylinder extends and drives the U-shaped guide block and the insert plate to move to the right, so that one side of the insert plate is close to the box body and inserted into the box body. The left and right page cylinders and the left and right page pushers reset. The pusher cylinder extends and drives the pusher block to push the end page along the arc groove below the insert plate into the box body. At this time, the end page cylinder and the U-shaped guide block reset and drive the insert plate from the inside of the packaging box. (6) The packaging box is pulled out and the sealing work is completed; (7) The last feeding cylinder retracts, which drives the lower push rod seat to move down along the push rod slide. The left side of the packaging box loses support and the packaging box slides down along the feeding hopper to complete the feeding of the packaging box; (8) In step (2), after the outermost packaging box is transported out by the feeding device, the weighted body moves down along the weight limit tube by the thickness of one packaging box under the action of gravity. The weighted body pulls the push block structure through the thin rope to push the packaging box to move towards the output end of the discharge to replenish the material. This makes the second packaging box, which was originally in the output end of the storage space, become the outermost packaging box. At the same time, it can make the stacked packaging boxes in a compressed state.

Images