A carton erecting machine

Abstract

The application relates to a paperboard case forming machine which comprises a paper feeding assembly, a correcting assembly, a pressing assembly, a paper folding assembly and a tape sticking assembly arranged in sequence along a paperboard conveying direction. The paper feeding assembly is used for conveying the stacked paperboard forward one by one, the correcting assembly and the pressing assembly are arranged in sequence along the paperboard conveying direction in front of the paper feeding assembly, the paperboard is corrected twice by the correcting assembly and the pressing assembly, the paper folding assembly is used for folding the two sides of the paperboard inward, and the tape sticking assembly is used for sticking the inwardly folded paperboard together. When conveying the paperboard, the paperboard is corrected twice by the correcting assembly and the pressing assembly, the swinging or deviation of the paperboard during conveying is avoided, the subsequent paper folding operation and tape sticking operation are affected, and the qualified rate of the finished product is improved; when cutting the tape, the cutting position can be adjusted according to the width of the tape, and the universality is higher.

Description

Technical Field

[0001] This invention belongs to the field of paper box packaging technology, specifically relating to a cardboard box forming machine. Background Technology

[0002] Cardboard box forming machines (also known as carton forming machines or carton opening machines) are core equipment in automated packaging production lines. They are post-printing processing equipment used to fold and glue printed and die-cut cardboard into packaging boxes. This equipment can process various materials such as cardboard and corrugated cardboard, and can produce straight boxes, lock-bottom boxes, and other models. In the packaging and printing industry, it is a key process in packaging box processing and is widely used in the packaging processing of various products such as food, medicine, cosmetics, and wine.

[0003] Currently, existing carton forming machines have the following problems in use: During the cardboard conveying process, the edges of the cardboard are prone to curling and wrinkling, which affects the aesthetics of the carton forming and may lead to problems such as glue separation, edge curling and poor forming in subsequent stages, reducing the product qualification rate; Moreover, when cutting tape in the subsequent process, the cutting position cannot be adjusted, and it can only be adapted to a certain specification of tape, resulting in poor versatility. Summary of the Invention

[0004] This invention provides a cardboard box forming machine that solves the problem of existing box forming machines where the edges of the cardboard are prone to warping and wrinkling, which affects the appearance of the formed boxes and reduces the product qualification rate.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: it includes a paper feeding assembly, a correction assembly, a pressing assembly, a folding assembly, and an adhesive tape application assembly arranged sequentially along the paperboard conveying direction; The paper feeding assembly includes a first paper feeding mechanism for conveying paperboard and a separation mechanism disposed above the first paper feeding mechanism. The separation mechanism includes a slide bar disposed above the first paper feeding mechanism, a sliding member slidably mounted on the slide bar, and a limiting member disposed on one side of the sliding member and located above the first paper feeding mechanism. The gap between the limiting member and the first paper feeding mechanism allows only a single sheet of paperboard to pass through. The correction assembly includes a second paper feeding mechanism and a correction mechanism disposed above the second paper feeding mechanism. The correction mechanism includes a correction plate disposed above the second paper feeding mechanism, a hinge plate rotatably mounted on the bottom of the correction plate and inclined, and a first pressure roller rotatably mounted on the bottom of the hinge plate. The first pressure roller abuts against the second paper feeding mechanism. The pressing assembly includes a third paper feeding mechanism and a pressing mechanism disposed above the third paper feeding mechanism. The pressing mechanism includes a pressing plate disposed above the third paper feeding mechanism, guide wheels rotatably disposed on both sides of the pressing plate, a pressing belt wrapped around the guide wheels, a tensioning member disposed on the inner side of the pressing plate for tensioning the pressing belt, and pressing belt members spaced apart at the bottom of the pressing plate. The origami assembly includes a folding frame, a folding strip wound around the folding frame, an inclined pusher for pushing the folding strip to an inclined position, and a flattening member for pressing the folding strip to a horizontal position. The tape applicator includes an applicator frame, a tape-dispensing wheel rotatably mounted on one side of the applicator frame, a tilting plate pivotally mounted on the bottom of the applicator frame, a pressing wheel rotatably mounted on the bottom of the tilting plate, a third pressing wheel disposed on one side of the pressing wheel and pressing the tape against the cardboard, and a cutting mechanism for cutting the tape.

[0006] Optimally, the sliding member includes a first sliding sleeve slidably sleeved on the sliding rod, a first mounting plate fixed to one side of the first sliding sleeve, a guide wheel mounting plate fixed to the bottom of the first mounting plate and extending along the conveying direction, and a guide wheel rotatably mounted on the bottom of the guide wheel mounting plate for pressing the upper surface of the cardboard.

[0007] Optimally, the sliding member further includes a first mounting strip mounted above the first paper feeding mechanism, an upper clamping plate and a lower clamping plate fixed to the side of the first mounting plate near the first mounting strip, a slot formed between the upper clamping plate and the lower clamping plate, and a fastening unit for locking the upper clamping plate and the lower clamping plate onto the first mounting strip, wherein the first mounting strip is engaged in the slot.

[0008] Optimally, the limiting member includes a feed paperboard that is height-adjustably installed on the side of the first mounting plate away from the first mounting strip, and an arc-shaped portion disposed at the bottom of the feed paperboard, the center of the arc being away from the first paper feeding mechanism.

[0009] Optimally, the limiting member further includes a first fixing plate fixed to one side of the first mounting plate, an adjusting screw rotatably mounted on the first fixing plate, and a sliding plate slidably mounted on one side of the first mounting plate. The feed plate is fixed to the side of the sliding plate away from the first mounting plate, and the adjusting screw is connected to the feed plate for adjusting the height of the feed plate.

[0010] Optimally, the correction mechanism further includes a first spring groove formed at the bottom of the correction plate, a boss integrally connected to the hinge plate on the side near the correction plate, a second spring groove formed at the top of the boss, and a first spring disposed in the first spring groove and the second spring groove.

[0011] Optimally, the tensioning member includes a transition wheel and a reversing wheel rotatably mounted on the inner side of the pressing plate, an adjusting wheel adjustablely mounted on the inner side of the pressing plate, a tensioning groove penetrating the pressing plate, a second limiting plate fixed on the outer side of the pressing plate and disposed opposite to it, a limiting groove formed between the second limiting plates, an adjusting plate slidably connected in the limiting groove, and an adjusting shaft fixed on the inner side of the adjusting plate and penetrating the tensioning groove. The adjusting wheel is rotatably mounted on the adjusting shaft, and the pressure belt is sequentially wound around the transition wheel, the adjusting wheel, and the reversing wheel.

[0012] Optimally, the tensioning member further includes a fixing block fixed to the outside of the pressing plate, a stop block fixed to the outside of the adjusting plate, and a tightening bolt screwed onto the fixing block, the tightening bolt abutting against the side of the stop block near the fixing block.

[0013] Optimally, the pressing belt component includes a second mounting groove formed at the bottom of the pressing plate, a hinge plate rotatably mounted in the second mounting groove, a pressure plate rotatably mounted at the bottom of the hinge plate, second pressure rollers rotatably mounted on both sides of the pressure plate and abutting against the pressing belt, a third spring groove formed at the top of the hinge plate, and a third spring disposed in the third spring groove and abutting against the pressing plate.

[0014] Optimally, the cutting mechanism includes a sliding plate movably disposed on one side of the adhesive applicator, a fixing strip fixed to the bottom of the sliding plate, a cutting strip elastically connected to the top of the fixing strip, a first cutting part disposed on one side of the fixing strip, and a second cutting part disposed on one side of the cutting strip.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The cardboard box forming machine of this invention uses a correction component and a pressing component to perform two pressing corrections on the cardboard during the conveying process, which prevents the cardboard from swaying or shifting during conveying, thereby affecting subsequent folding and tape application operations and improving the qualification rate of finished products. When the tape application component cuts the tape, the cutting position can be adjusted according to the width of the tape, making it more versatile.

[0016] Furthermore, when the correction component and the pressing component press the paperboard, the elastic mechanism can reduce the pressure on the paperboard and avoid excessive squeezing of the paperboard, which could cause deformation of the paperboard edges. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the paper feeding assembly of the present invention; Figure 3This is a partial structural schematic diagram of the paper feeding assembly of the present invention; Figure 4 This is a side view of the paper feeding assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the modified component of the present invention; Figure 6 This is a partial structural diagram of the modified component of the present invention; Figure 7 This is a front view of a partial structure of the modified component of the present invention; Figure 8 This is a top view of a partial structure of the modified component of the present invention; Figure 9 This is a cross-sectional view of a portion of the modified component of the present invention; Figure 10 This is a schematic diagram of the pressing assembly of the present invention; Figure 11 This is a partial structural schematic diagram of the pressing assembly of the present invention; Figure 12 This is a partial structural schematic diagram of the pressing assembly of the present invention; Figure 13 This is a front view of the pressing assembly of the present invention; Figure 14 This is a partial structural schematic diagram of the pressing assembly of the present invention; Figure 15 This is a top view of a partial structure of the pressing assembly of the present invention; Figure 16 This is a schematic diagram of the origami assembly of the present invention; Figure 17 This is a partial structural schematic diagram of the origami assembly of the present invention; Figure 18 This is a schematic diagram of the tape application assembly of the present invention; Figure 19 This is a front view of the tape application assembly of the present invention; Figure 20 This is a partial structural schematic diagram of the tape application assembly of the present invention; Explanation of reference numerals in the attached figures: 1. Paper feeding assembly; 100. First vertical plate; 101. Conveyor plate; 102. First drive wheel; 103. Paper feeding adjusting wheel; 104. Adjusting groove; 105. Adjusting bolt; 106. First driven wheel; 107. Paper feeding conveyor belt; 108. Drive shaft; 109. Support wheel; 110. Support wheel shaft; 111. Slide rod; 112. First sliding sleeve; 113. Extension plate; 114. First mounting plate; 115. First fixing plate; 116. Adjusting screw 117. Feed plate; 118. Arc-shaped part; 119. Guide wheel mounting plate; 120. Guide wheel; 121. Upper clamping plate; 122. Upper through hole; 123. Lower clamping plate; 124. Lower through hole; 125. Slot; 126. First mounting strip; 127. Fastening slot; 128. Fastening bolt; 129. Fastening nut; 130. Slide plate; 131. Fixing ring; 132. Fixing bolt; 133. Connecting plate; 134. First limiting plate; 135. Guide plate; 2. Correction assembly; 200. Support frame; 201. Feeding plate; 202. Guide sleeve; 203. Guide column; 204. First drive motor; 205. First lead screw; 206. Second lead screw; 207. Connecting sleeve; 208. Second drive motor; 209. Second driving wheel; 210. Second driven wheel; 211. Idler wheel; 212. Feeding belt; 213. Crossbeam; 214. Second sliding sleeve; 215. Slide groove; 216. Second fixing plate; 17. First folding plate; 218. Second folding plate; 219. First adjusting groove; 220. First locking bolt; 221. First mounting plate; 222. Second mounting plate; 223. Second adjusting groove; 224. Second locking bolt; 225. Correcting plate; 226. First mounting groove; 227. Hinge plate; 228. Clearance groove; 229. First spring groove; 230. Second spring groove; 231. First spring; 232. First pressure roller; 233. Boss; 3. Pressing assembly; 300. Second mounting plate; 301. First mounting groove; 302. Mounting shaft; 303. Conveyor wheel; 304. Pressing conveyor belt; 305. Material stop; 306. Support shaft; 307. Support wheel; 308. Synchronous shaft; 309. First extension plate; 310. Second vertical plate; 311. Second extension plate; 312. Second mounting strip; 313. Fixed column; 314. Upper fixed plate; 315. Folding plate; 316. Lower fixed plate; 317. Side extension plate; 318. Pressing plate; 319. Receiving groove; 320. Connecting plate; 321. Guide shaft; 322. Guide wheel; 323. Transition shaft; 324. Transition wheel; 325. Tensioning groove; 326. Adjusting shaft; 327. Pressing adjusting wheel; 328. Second limiting plate; 329. Limiting groove; 330. Adjusting plate; 331. Abutment block; 332. Fixing block; 333. Tightening bolt; 334. Reversing shaft; 335. Reversing wheel; 336. Second mounting groove; 337. Hinge plate; 338. Third spring groove; 339. Second spring; 340. Pressure plate; 341. Snap ring; 342. Second pressure wheel; 343. Pressure belt; 4. Origami assembly; 400. Folding frame; 401. Folding belt; 402. Conveyor wheel; 403. Support rod; 404. Support roller; 405. Support plate; 406. Holding rod; 407. Holding roller; 408. Holding groove; 409. Pressure rod; 410. Pressure rod wheel; 5. Tape applicator assembly; 500. Tape applicator frame; 501. Tape feeding roller; 502. Tensioning roller; 503. Tilting plate; 504. Wrapping roller; 505. Pressing cylinder; 506. Applicator plate; 507. Pressing roller; 508. Pushing cylinder; 509. Pad plate; 510. Slide rail; 511. Slider; 512. Sliding plate; 513. Mounting block; 514. Third mounting slot; 515. Support plate; 516. Cutting cylinder; 517. Fixing strip; 518. Cutting strip; 519. First cutting section; 520. Second cutting section; 521. Slide table cylinder; 522. Pushing plate; 523. Pressure roller mounting plate; 524. Third pressure roller. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0019] like Figure 1The diagram shows the structure of the cardboard box forming machine of the present invention. The cardboard box forming machine includes a paper feeding assembly 1, a correction assembly 2, a pressing assembly 3, a folding assembly 4, and an adhesive tape application assembly 5 arranged sequentially along the cardboard conveying direction. The paper feeding assembly 1 is used to convey the stacked cardboard sheets forward one by one. The correction assembly 2 and the pressing assembly 3 are arranged sequentially in front of the paper feeding assembly 1 along the cardboard conveying direction, performing two pressing corrections on the cardboard to prevent it from swaying or shifting during conveying, thus affecting subsequent folding and adhesive tape application operations. The folding assembly 4 is used to fold the two sides of the cardboard inward, and finally, the adhesive tape application assembly 5 glues the inwardly folded cardboard together.

[0020] like Figure 2-4 The diagram shows the structure of the paper feeding assembly 1. The paper feeding assembly 1 includes a support frame, a first paper feeding mechanism, a separating mechanism, and a paper blocking mechanism. The support frame consists of two opposing first vertical plates 100, which are vertically fixed to the top of the conveyor platform by bolts, with the two first vertical plates 100 spaced apart. Multiple sets of the first paper feeding mechanism are arranged between the two first vertical plates 100. Stacked cardboard sheets are placed on the first paper feeding mechanism, which separates the bottom layer of cardboard sheets one by one and conveys them forward. The separating mechanism is located above the first paper feeding mechanism to ensure that the first paper feeding mechanism can only convey one cardboard sheet at a time. The paper blocking mechanism is located on both sides of the first paper feeding mechanism to abut against the stacked cardboard sheets and prevent them from tilting to the sides.

[0021] like Figure 3 The diagram shows the structure of the first paper feeding mechanism. Each first paper feeding mechanism includes a conveyor plate 101, a first drive wheel 102, a paper feeding adjusting wheel 103, an adjusting groove 104, an adjusting bolt 105, a first driven wheel 106, a paper feeding conveyor belt 107, a drive shaft 108, a support wheel 109, and a support wheel shaft 110. The conveyor plate 101 is a rectangular metal plate, fixed to the top of the conveyor platform by welding, and the length direction of the conveyor plate 101 is the same as the conveying direction of the paperboard. The first drive wheel 102 is rotatably mounted on one end of the conveyor plate 101. Specifically, multiple conveyor plates 101 have shaft holes corresponding to the positions of the first drive wheel 102. The drive shaft 108 is mounted in the shaft holes of the multiple conveyor plates 101 through bearings, ensuring that the drive shaft 108 can rotate normally under the action of the bearings.

[0022] The first drive wheel 102 is mounted on the drive shaft 108 via a key connection. Multiple first drive wheels 102 are mounted on the same drive shaft 108 to ensure synchronous conveying of each paper feeding conveyor belt 107. A servo motor (not shown in the figure) is provided on the outer side of the first vertical plate 100. The housing of the servo motor is fixedly mounted on the upper surface of the conveyor platform. The output shaft of the servo motor is connected to the drive shaft 108 via a coupling. The servo motor drives the drive shaft 108 to rotate, which in turn drives the first drive wheel 102 and the paper feeding conveyor belt 107 to rotate, so as to convey the paperboard.

[0023] An adjusting groove 104 is located on the side of the conveyor plate 101 away from the first drive wheel 102. The adjusting groove 104 is a rounded rectangular groove that extends along the length of the conveyor plate 101. An adjusting bolt 105 passes sequentially through the paper feeding adjusting wheel 103 and the adjusting groove 104 on the conveyor plate 101. An adjusting nut is screwed onto the end of the adjusting bolt 105. The adjusting nut rests against the side of the conveyor plate 101 away from the paper feeding adjusting wheel 103. With the cooperation of the adjusting bolt 105 and the adjusting nut, the paper feeding adjusting wheel 103 is fixedly installed on the conveyor plate 101. (When the position of the paper feeding adjusting wheel 103 needs to be adjusted, loosen the adjusting nut, move the paper feeding adjusting wheel 103 to the appropriate position along the length of the adjusting groove 104, and then tighten the adjusting nut to tension the paper feeding conveyor belt 107. A washer can be fitted on the adjusting bolt 105, with the adjusting nut resting against the washer, thereby increasing the reliability of the adjusting nut locking.)

[0024] The first driven wheel 106 is mounted on the paper feeding adjustment wheel 103 via a bearing. The paper feeding conveyor belt 107 is wound around the first driving wheel 102 and the first driven wheel 106. The servo motor drives the drive shaft 108 to rotate, which in turn drives the first driving wheel 102 to rotate, thereby driving the first driven wheel 106 and the paper feeding conveyor belt 107 to rotate, so as to transport the paperboard.

[0025] Multiple support wheel shafts 110 are rotatably mounted on one side of the conveyor plate 101 (the support wheel shafts 110, the first driving wheel 102, and the first driven wheel 106 are located on the same side of the conveyor plate 101; specifically, the conveyor plate 101 has axle holes corresponding to the positions of the support wheel shafts 110, and the support wheel shafts 110 are mounted in the axle holes of the conveyor plate 101 via bearings). Support wheels 109 are mounted on the support wheel shafts 110 via key connections, and the support wheels 109 abut against the upper surface of the paper feeding conveyor belt 107, supporting the paper feeding conveyor belt 107 and preventing it from deforming and drooping downwards while carrying the paperboard).

[0026] like Figure 4The diagram shows a schematic of the separation mechanism, which includes a slide rod 111, a sliding member, and a limiting member. The two ends of the slide rod 111 are fixed between two first vertical plates 100 by welding, and the installation direction of the slide rod 111 is perpendicular to the conveying direction of the cardboard. The sliding member is slidably mounted on the slide rod 111 and cooperates with the paper feeding conveyor belt 107 to prevent the cardboard from warping when the paper feeding conveyor belt 107 conveys the cardboard. The limiting member is located on one side of the sliding member and above the paper feeding conveyor belt 107. The gap between the limiting member and the paper feeding conveyor belt 107 allows only a single sheet of cardboard to pass through, thus enabling the conveying of a single sheet of cardboard.

[0027] There is one set of two sliders, such as... Figure 4 As shown, each sliding component includes a first sliding sleeve 112, an extension plate 113, a first mounting plate 114, a guide wheel mounting plate 119, a guide wheel 120, an upper clamping plate 121, an upper through hole 122, a lower clamping plate 123, a lower through hole 124, a clamping groove 125, a first mounting strip 126, a fastening groove 127, a fastening bolt 128, and a fastening nut 129. The first sliding sleeve 112 is slidably mounted on the sliding rod 111, and the extension plate 113 is integrally connected to one side of the first sliding sleeve 112. The operator can adjust the position between the two sliding components according to the length of the cardboard. The arrangement of the first sliding sleeve 112 and the sliding rod 111 is used for guidance during adjustment.

[0028] The first mounting plate 114 is fixedly connected to the extension plate 113 on the side away from the first sliding sleeve 112 and is vertically downward to near the paper feeding conveyor belt 107. The guide wheel mounting plate 119 is integrally connected to the bottom of the first mounting plate 114 and extends in the paperboard feeding direction (e.g., Figure 4 As shown, the guide wheel mounting plate 119 is perpendicular to the first mounting plate 114 and forms an "L" shape. Multiple guide wheel shafts are equidistantly arranged at the bottom of the guide wheel mounting plate 119. The guide wheel 120 is rotatably mounted on the guide wheel shaft through bearings. The guide wheel 120 is used in conjunction with the paper feeding conveyor belt 107 to convey the paperboard and prevent the paperboard from warping.

[0029] The two ends of the first mounting strip 126 are fixed between the two first upright plates 100 by welding, and the first mounting strip 126 is perpendicular to the conveying direction of the cardboard and is located below the slide bar 111. The upper clamping plate 121 and the lower clamping plate 123 are fixedly connected to the side of the first mounting plate 114 near the first mounting strip 126, and a groove 125 is formed between the upper clamping plate 121 and the lower clamping plate 123, in which the first mounting strip 126 is engaged. By setting the first mounting strip 126 and the upper clamping plate 121 and the lower clamping plate 123 engaged with it, when the operator adjusts the position of the first mounting plate 114, the first mounting strip 126 provides guidance and support, preventing the first mounting plate 114 from swinging.

[0030] The fastening groove 127 extends vertically through the first mounting strip 126 and along the length of the first mounting strip 126. The upper through hole 122 extends vertically through the upper clamping plate 121, and the lower through hole 124 extends vertically through the lower clamping plate 123, with the lower through hole 124 and the upper through hole 122 coaxially arranged. The fastening bolt 128 passes through the upper through hole 122, the fastening groove 127, and the lower through hole 124 sequentially from top to bottom. The fastening nut 129 is screwed on the lower end of the fastening bolt 128 to lock the first mounting plate 114 after position adjustment (when the position of the first mounting plate 114 needs to be adjusted, loosen the fastening nut 129, adjust the first mounting plate 114 to the appropriate position along the length of the fastening groove 127, and then tighten the fastening nut 129 again).

[0031] The limiting component includes a first fixed plate 115, an adjusting screw 116, a feed paper 117, and an arc-shaped portion 118. The first fixed plate 115 is fixed to the top of the first mounting plate 114 and is located on the side of the first mounting plate 114 away from the slide rod 111. The adjusting screw 116 is threadedly connected to the first fixed plate 115, and the lower end of the adjusting screw 116 is rotatably connected to the feed paper 117. When the operator rotates the adjusting screw 116, the feed paper 117 moves up and down relative to the first mounting plate 114 to adjust the gap between the feed paper 117 and the paper feeding conveyor belt 107. Specifically, the adjusting screw 116 is a rod with threads machined on its outer surface, and the first fixed plate 115 has a threaded hole in which the adjusting screw 116 is threadedly connected. A lead screw connector (which can be rotatably connected via bearings) is rotatably mounted on the top of the feed paperboard 117. The bottom of the adjusting lead screw 116 is fixedly connected to the lead screw connector. When the operator rotates the adjusting lead screw 116, the adjusting lead screw 116 drives the feed paperboard 117 to rise and fall, thereby adjusting the gap between the feed paperboard 117 and the paper feeding conveyor belt 107. Due to the self-locking nature of the thread, the feed paperboard 117 can be held in the set position after adjustment (the adjusting lead screw 116 is a conventional mechanical structure in the prior art, and its working principle has been disclosed in existing patents, such as the Chinese utility model patent with application number 202520962032.3, entitled "A Top Pipe Device for a Grooving Machine").

[0032] The arc-shaped part 118 is located at the bottom of the paper feed 117, and the center of the arc of the arc-shaped part 118 is away from the paper feeding conveyor belt 107. The arc-shaped part 118 is designed to facilitate the entry of paper. The operator rotates the adjusting screw 116 to adjust the distance between the paper feed 117 and the paper feeding conveyor belt 107, ensuring that only one piece of paper can pass between the paper feed 117 and the paper feeding conveyor belt 107.

[0033] The slide groove is formed on the side of the first mounting plate 114 near the feed plate 117. The slide plate 130 is integrally connected to the side of the feed plate 117 near the first mounting plate 114 and cooperates with the slide groove. By setting the mutually cooperating slide groove and slide plate 130, the adjustment of the feed plate 117 is guided.

[0034] like Figure 2 As shown, the paper-stopping mechanism includes a fixing ring 131, a fixing bolt 132, a connecting plate 133, a first limiting plate 134, and a guide plate 135. The fixing ring 131 is fitted onto the slide rod 111 and can slide along the length of the slide rod 111 to accommodate paperboards of different lengths. The fixing bolt 132 is threadedly connected to the outer side of the fixing ring 131, and one end of the fixing bolt 132 abuts against the outer circumferential surface of the slide rod 111. The fixing ring 131 is locked in position by the fixing bolt 132. The connecting plate 133 is fixed to one side of the fixing ring 131 and extends above the paper feeding conveyor belt 107. An avoidance groove is provided on the side of the connecting plate 133 near the first mounting strip 126 to avoid the position of the first mounting strip 126 and prevent interference between the connecting plate 133 and the first mounting strip 126.

[0035] The first limiting plate 134 is fixed to the inner side of the connecting plate 133 and abuts against both sides of the stacked boards. Under the abutment of the first limiting plate 134, the stacked cardboard is prevented from tilting to both sides. The first limiting plate 134 abuts against the side wall of the first mounting strip 126. Under the abutment and support of the first mounting strip 126, the connecting plate 133 is prevented from swinging.

[0036] The guide plate 135 is inclinedly connected to the top of the first limiting plate 134, and the lateral distance between the guide plates 135 of the two material blocking components gradually decreases from top to bottom, guiding the stacked cardboard placed by the operator and facilitating the placement of the stacked board.

[0037] The correction component 2 is located downstream of the paper feeding component 1, and is used to receive the individual sheets of paperboard fed by the paper feeding component 1 one by one, and to perform preliminary pressing and correction on the paperboard, such as... Figure 5-9 As shown, the correction assembly includes a second paper feeding mechanism and a correction mechanism. The second paper feeding mechanism is used to carry the single sheets of paperboard fed by the paper feeding assembly 1 one by one, and to continue to feed them forward (that is, to feed the paperboard from one side to the other side in a horizontal direction). The correction mechanism is located above the second paper feeding mechanism and is used to perform preliminary correction on the paperboard fed by the second paper feeding mechanism to prevent the paperboard from being suspended or slipping during feeding.

[0038] The second paper feeding mechanism includes a support frame 200, a feeding plate 201, a guide sleeve 202, a guide column 203, a first drive motor 204, a first lead screw 205, a second lead screw 206, a connecting sleeve 207, a second drive motor 208, a second driving wheel 209, a second driven wheel 210, an idler wheel 211, a feeding belt 212, a crossbeam 213, a second sliding sleeve 214, a sliding groove 215, a second fixing plate 216, a first folding plate 217, and a second folding plate 218. There is one set of two support frames 200. The support frames 200 are fixed to the workshop floor, and the two support frames 200 are arranged opposite each other, meaning there is installation space between the two support frames 200.

[0039] There are at least two guide posts 203, fixed between the support frames 200 and arranged in parallel (in this embodiment, there are two guide posts 203, with both ends of the guide posts 203 fixed to opposite sides of the two support frames 200, and the guide posts 203 are perpendicular to the support frames 200. The number of guide posts 203 can be adjusted appropriately according to the actual size of the equipment). Figure 7 As shown, there are two feeding plates 201, which are respectively installed on two guide posts 203. The guide sleeve 202 is fixed to the feeding plate 201 by screws. The guide post 203 passes through the through hole on the guide sleeve 202 and the feeding plate 201. By setting the mutually cooperating guide sleeve 202 and guide post 203, the movement of the two feeding plates 201 is guided (specifically, two guide sleeves 202 are fixed on each feeding plate 201 to match the two guide posts 203 between the support frame 200).

[0040] like Figure 8 As shown, the first lead screw 205 is rotatably mounted on the inner side of one of the support frames 200, and the second lead screw 206 is rotatably mounted on the inner side of the other support frame 200 and is coaxially arranged with the first lead screw 205. (Specifically, the two support frames 200 have mounting holes at the positions corresponding to the lead screws. The end of the first lead screw 205 is mounted in the mounting hole of one of the support frames 200 through a bearing, and the end of the second lead screw 206 is also mounted in the mounting hole of the other support frame 200 through a bearing. Under the action of the bearing, it is ensured that the first lead screw 205 and the second lead screw 206 can rotate normally.)

[0041] The motor housing of the first drive motor 204 is fixed to the outside of the support frame 200 by screws. The output shaft of the first drive motor 204 is connected to the first lead screw 205 through a coupling, and the first drive motor 204 drives the first lead screw 205 to rotate (the first drive motor 204 can be a commercially available conventional servo motor). To ensure that the first lead screw 205 and the second lead screw 206 rotate synchronously, the first lead screw 205 and the second lead screw 206 are connected by a connecting sleeve 207.

[0042] like Figure 8As shown, two feeding plates 201 are respectively mounted on the first lead screw 205 and the second lead screw 206 via corresponding lead screw nuts (the lead screw nut and the first lead screw 205 form a ball screw structure, and the lead screw nut and the second lead screw 206 form a ball screw structure). When the first drive motor 204 drives the first lead screw 205 and the second lead screw 206 to rotate, it in turn drives the two feeding plates 201 to move. The threads of the first lead screw 205 and the second lead screw 206 have opposite directions of rotation. Therefore, when the first drive motor 204 drives the first lead screw 205 and the second lead screw 206 to rotate, the rotation directions of the first lead screw 205 and the second lead screw 206 are opposite. Thus, the two feeding plates 201 move synchronously inward or outward to meet the feeding needs of cardboard of different widths.

[0043] like Figure 7 As shown, a second drive wheel 209 is rotatably mounted on the inner side of each feed plate 201. A second drive motor 208 connected to the second drive wheel 209 is fixed on the opposite side of the two feed plates 201. (Specifically, the motor housing of the second drive motor 208 is fixed to the outer side of the feed plate 201 by screws, and the second drive wheel 209 is mounted on the output shaft of the second drive motor 208 by a key connection. The second drive motor 208 drives the second drive wheel 209 to rotate. A commercially available servo motor can be selected for the second drive motor 208.)

[0044] Two second driven wheels 210 are rotatably mounted on the inner side of each feeding plate 201. Specifically, the driven wheel shaft is fixedly mounted on the inner side of the feeding plate 201 and spaced apart, and the second driven wheels 210 are rotatably mounted on the driven wheel shaft via bearings. Two idler wheels 211 are rotatably mounted on the inner side of the feeding plate 201 (specifically, the idler wheel shaft is fixedly mounted on the inner side of the feeding plate 201 and spaced apart, and the idler wheels 211 are rotatably mounted on the idler wheel shaft via bearings). The feeding belt 212 is wound around the second driving wheel 209, the idler wheels 211, and the second driven wheels 210. The second drive motor 208 drives the second driving wheel 209 to rotate, thereby driving the feeding belt 212 to rotate cyclically to convey the material. By setting the idler wheels 211, the winding direction of the feeding belt 212 avoids the guide post 203 below.

[0045] like Figure 5 , 6As shown, the two ends of the crossbeam 213 are fixed to the top of the two support frames 200, supporting the feed plate 201 below. There are two second sliding sleeves 214. The sliding groove 215 passes through the second sliding sleeve 214 in the horizontal direction and is adapted to the cross section of the crossbeam 213. The second sliding sleeve 214 slides on the crossbeam 213 and can slide along the length of the crossbeam 213. The second fixing plate 216 is fixed to one side of the second sliding sleeve 214 (the bolt passes through the second sliding sleeve 214 and the second fixing plate 216, and the second fixing plate 216 is installed on the other side with a nut).

[0046] The first folding plate 217 is integrally connected to the top of the second fixed plate 216 and extends inward, while the second folding plate 218 is integrally connected to the bottom of the second fixed plate 216 and extends inward. The feeding plate 201 is fixed to the inner side of the second folding plate 218. When the two feeding plates 201 move synchronously towards or away from each other, they will drive the two second sliding sleeves 214 to slide synchronously along the length of the crossbeam 213.

[0047] The correction mechanism includes a first adjusting groove 219, a first locking bolt 220, a first mounting plate 221, a second mounting plate 222, a second adjusting groove 223, a second locking bolt 224, a correction plate 225, a first mounting groove 226, a hinge plate 227, a clearance groove 228, a first spring groove 229, a second spring groove 230, a first spring 231, a first pressure roller 232, and a boss 233. Figure 6 As shown, the first adjusting groove 219 extends vertically through the first folding plate 217 and is an oblong groove. The first mounting plate 221 is installed at the bottom of the first folding plate 217, and its position can be adjusted along the length of the crossbeam 213. The operator can fine-tune the pressing position of the first pressure roller 232 on the feeding belt 212 by adjusting the position of the first mounting plate 221.

[0048] The first locking bolt 220 passes through the first adjusting groove 219 to install the first mounting plate 221 (specifically, the first mounting plate 221 has a first threaded hole at the position corresponding to the first adjusting groove 219, the first locking bolt 220 passes through the first adjusting groove 219 and the first threaded hole on the first mounting plate 221 from top to bottom, and then the first locking nut is screwed on the other end of the first locking bolt 220 to complete the fixed connection of the first mounting plate 221; when it is necessary to adjust the position of the first mounting plate 221, the first locking nut can be loosened in the opposite direction for fine adjustment).

[0049] The second mounting plate 222 is integrally connected to the bottom of the first mounting plate 221. The second adjusting groove 223 extends horizontally through the second mounting plate 222 and is an oblong groove. The correction plate 225 is installed inside the second mounting plate 222 and above the feeding belt 212. The correction plate 225 can be adjusted vertically to adjust the distance between the first pressure roller 232 and the feeding belt 212, thus satisfying the conveying and pressing of plates of different thicknesses.

[0050] The second locking bolt 224 passes through the second adjusting groove 223 to install the second mounting plate 222 (specifically, the second mounting plate 222 has a second threaded hole at the position corresponding to the second adjusting groove 223, the second locking bolt 224 passes through the second adjusting groove 223 and the second threaded hole on the second mounting plate 222 in the horizontal direction, and then the second locking nut is screwed on the other end of the second locking bolt 224 to complete the fixed connection of the second mounting plate 222; when it is necessary to adjust the position of the second mounting plate 222, the second locking nut can be loosened in the opposite direction to make a slight adjustment along the length direction of the second adjusting groove 223).

[0051] like Figure 9 As shown, the first mounting groove 226 is opened at the bottom of the correction plate 225 along the length direction of the correction plate 225. There are multiple hinge plates 227, which are rotatably installed in the first mounting groove 226 and are inclined (specifically, coaxial through holes are opened on both sides of the groove wall of the first mounting groove 226, the hinge plate 227 is inserted into the first mounting groove 226, and the upper end of the hinge plate 227 is correspondingly opened with a shaft hole. After the pin passes through the through hole and the shaft hole, it is limited by the snap ring, thereby realizing the installation of the hinge plate 227).

[0052] The boss 233 is fixed to the hinge plate 227 on the side near the correction plate 225. A first spring groove 229 is formed at the bottom of the correction plate 225, and the diameter of the first spring groove 229 is larger than the width of the first mounting groove 226. A second spring groove 230 is formed at the top of the boss 233 and cooperates with the first spring groove 229. A first spring 231 is disposed in the first spring groove 229 and the second spring groove 230. Under the action of the first spring 231, the first pressure roller 232 below is elastically pressed.

[0053] The clearance groove 228 is located on the side of the hinge plate 227 away from the correction plate 225. During cardboard conveying, if... Figure 5 As shown, the hinge plate 227 will swing when the cardboard is conveyed, and the clearance groove 228 can provide swing space for adjacent hinge plates 227.

[0054] The first pressure roller 232 is rotatably mounted on the bottom of the hinge plate 227 and abuts against the feeding belt 212 (specifically, the bottom of the hinge plate 227 has a through mounting hole in the horizontal direction, the pressure roller shaft passes through the mounting hole and is interference-fitted with it, and the first pressure roller 232 is mounted on the pressure roller shaft through a bearing). When the cardboard is conveyed, the first pressure roller 232 abuts against the cardboard and corrects the cardboard to prevent the cardboard from being suspended in the air and slipping.

[0055] The pressing component 3 is located at the end of the correcting component 2, and performs secondary correcting and pressing on the conveyed cardboard, such as... Figure 10-13 As shown, the pressing assembly includes a third paper feeding mechanism and a pressing mechanism. The third paper feeding mechanism is used to receive the paperboard conveyed by the correction assembly 2. The pressing mechanism is located above the third paper feeding mechanism and cooperates with the third paper feeding mechanism to press the upper surface of the paperboard to prevent the paperboard from being lifted or deviated due to airflow during conveying.

[0056] The third paper feeding mechanism consists of two sets arranged at intervals on the conveyor platform. Each set includes a second mounting plate 300, a first mounting groove 301, a mounting shaft 302, a conveyor wheel 303, a pressing conveyor belt 304, a material stop 305, a support shaft 306, and a support wheel 307. There are two second mounting plates 300, which are fixed to the conveyor platform by welding, and the two second mounting plates 300 are arranged opposite each other. Figure 10 The first mounting groove 301 is formed between the two second mounting plates 300.

[0057] like Figure 13 As shown, there are two mounting shafts 302, which are distributed on both sides of the second mounting plate 300 along the length direction of the second mounting plate 300 and are rotatably mounted between the two second mounting plates 300 (specifically, a first through hole is opened on both sides of the second mounting plate 300 along the length direction at the position corresponding to the mounting shaft 302, and the two ends of the mounting shaft 302 are mounted in the first through hole of the second mounting plate 300 through bearings. Under the action of the bearings, it is ensured that the mounting shaft 302 can rotate normally. The bearings are conventional mechanical parts in the prior art, and deep groove ball bearings can be selected).

[0058] The conveyor wheel 303 is mounted on the mounting shaft 302 with an interference fit. The press conveyor belt 304 is taut and wound around the two conveyor wheels 303 to convey the cardboard.

[0059] There are multiple support shafts 306, which are rotatably installed between two second mounting plates 300. The support shafts 306 are located between two conveyor wheels 303 and are spaced apart along the length of the second mounting plates 300 (specifically, a second through hole is opened on the second mounting plate 300 at the position corresponding to the support shaft 306, and both ends of the support shaft 306 are installed in the second through hole of the second mounting plate 300 through bearings. The bearings are conventional mechanical parts in the prior art, and deep groove ball bearings can be selected).

[0060] The number of support wheels 307 is the same as the number of support shafts 306, and they are mounted on the support shafts 306 by an interference fit. For example... Figure 13 As shown, the pressing conveyor belt 304, which is wound around the two conveyor wheels 303, rests on the support wheels 307. The pressing conveyor belt 304 is supported by multiple support wheels 307 that are spaced apart along the length of the second mounting plate 300, so as to avoid the middle part of the pressing conveyor belt 304 being suspended and deformed.

[0061] like Figure 12 As shown, the baffles 305 are spaced apart along the length of the second mounting plate 300 on its top surface. They limit the movement of the pressing conveyor belt 304 wound between the two conveyor wheels 303, preventing the pressing conveyor belt 304 from swinging to either side during transport (the upper surface of the pressing conveyor belt 304 is higher than the highest point of the baffles 305, so the baffles 305 on the top of the second mounting plate 300 will not interfere with the conveyed cardboard during transport). The baffles 305 are arc-shaped with their center facing the second mounting plate 300. The corners of the arc-shaped structure are more rounded and smooth, preventing scratches to workers during installation or maintenance.

[0062] There are two sets of third paper feeding mechanisms. To achieve synchronous rotation between the two sets of third paper feeding mechanisms and ensure that the paperboard is smoothly conveyed on the two pressing conveyor belts 304 without deviation or twisting, a synchronous shaft 308 is provided between the two sets of third paper feeding mechanisms. Figure 15 As shown, the synchronous shaft 308 is installed horizontally between the two sets of third paper feeding mechanisms, and is coaxially connected to the mounting shaft 302 located on the same side of the two sets of third paper feeding mechanisms. Specifically, the inner ends of the two opposite mounting shafts 302 in the two sets of conveying assemblies are fixedly connected to the two ends of the synchronous shaft 308 through couplings.

[0063] The drive motor is fixed to one side of the conveyor platform by a motor mounting bracket. The output shaft of the drive motor is connected to one end of the mounting shaft 302 through a coupling, thereby ensuring the consistency of rotation of the two sets of third paper feeding mechanisms (the drive motor can be a commercially available conventional servo motor).

[0064] There are two sets of pressing mechanisms, each positioned above the third paper feeding mechanism. Each pressing mechanism includes a support frame, a fixed column 313, a connector, a pressing plate 318, a receiving groove 319, a connecting plate 320, a guide shaft 321, a guide wheel 322, a pressing belt 343, a tensioning element, and a pressing belt component. For example... Figure 10 As shown, the support frame includes a first extension plate 309, a second upright plate 310, a second extension plate 311, and a second mounting strip 312. The first extension plate 309 is fixed to both sides of the conveyor platform by screws. The second upright plate 310 is fixed to the top of the first extension plate 309 by welding and is perpendicular to the first extension plate 309. The second extension plate 311 is fixed to the top of the second upright plate 310 by welding and extends inward to the top of the conveying assembly.

[0065] The second mounting strip 312 is fixed to the bottom of the second extension plate 311 by screws. At least two fixing posts 313 are fixed to the second mounting strip 312 and spaced apart (the use of two fixing posts 313 improves the stability of the pressing plate 318 mounting structure). Two connectors are fixed to the bottom of the fixing posts 313 and used to connect to the pressing plate 318 below. Figure 11 As shown, each connector includes an upper fixing plate 314, a folding plate 315, a lower fixing plate 316, and a side extension plate 317. The upper fixing plate 314 is fixed to the bottom of the fixing post 313. The folding plate 315 is integrally connected to the bottom of the upper fixing plate 314 and is perpendicular to the upper fixing plate 314. The lower fixing plate 316 is integrally connected to the bottom of the folding plate 315 and is perpendicular to the folding plate 315. The side extension plates 317 are integrally connected to both sides of the lower fixing plate 316 and extend outward. Fastening bolts pass through the side extension plates 317 and are screwed onto the top of the pressing plate 318 to complete the fixed installation of the pressing plate 318.

[0066] like Figure 13 As shown, there are two connecting plates 320, which are fixed to both sides of the pressing plate 318 by welding. The guide shaft 321 is fixed horizontally to one side of the connecting plate 320, and the guide wheel 322 is rotatably mounted on the guide shaft 321 via bearings. The pressure belt 343 is wound around the guide wheels 322 on both sides of the pressing plate 318 and is located above the pressing conveyor belt 304 to press the cardboard conveyed by the pressing conveyor belt 304. The receiving groove 319 is opened on the inner side of the pressing plate 318 to accommodate the tensioning member, which tensions the pressure belt 343.

[0067] like Figure 13 , 14As shown, the tensioning components include a transition shaft 323, a transition wheel 324, a tensioning groove 325, an adjusting shaft 326, a pressing adjusting wheel 327, a second limiting plate 328, a limiting groove 329, an adjusting plate 330, a stop block 331, a fixing block 332, a tightening bolt 333, a reversing shaft 334, and a reversing wheel 335. The transition shaft 323 is fixed horizontally within the receiving groove 319 of the pressing plate 318. The transition wheel 324 is rotatably mounted on the transition shaft 323 via bearings, ensuring normal rotation of the transition wheel 324 under the action of the bearings.

[0068] like Figure 13 , 14 As shown, the tension groove 325 passes horizontally through the pressing plate 318. There are two second limiting plates 328, which are fixed vertically to the outside of the pressing plate 318. The second limiting plates 328 are L-shaped, forming a limiting groove 329 between them. The adjusting plate 330 is engaged within the limiting groove 329 of the two second limiting plates 328 and its position can be adjusted along the length of the second limiting plates 328. The adjusting shaft 326 is fixed to the adjusting plate 330 and passes through the tension groove 325 of the pressing plate 318. The pressing adjusting wheel 327 is rotatably mounted on the adjusting shaft 326 via bearings, ensuring normal rotation of the pressing adjusting wheel 327 under the action of the bearings.

[0069] The fixing block 332 is fixed to the outside of the pressing plate 318, and the abutment block 331 is fixed to the outside of the adjusting plate 330. A clamping element is installed on the fixing block 332 and cooperates with the abutment block 331 to push the abutment block 331 and the adjusting plate 330 to move along the length of the pressing plate 318, thereby tensioning the pressure band 343. The clamping element can be a clamping bolt 333 or a commercially available linear cylinder. Figure 14 Only a schematic diagram is shown when the clamping element is a clamping bolt 333 (when the clamping bolt 333 is used, the outer peripheral surface of the clamping bolt 333 is provided with external threads, the fixing block 332 is provided with a through threaded hole, the clamping bolt 333 is installed on the fixing block 332 by screwing and the end of the clamping bolt 333 abuts against the side of the abutment block 331, and the abutment block 331 and the adjusting plate 330 are moved by screwing the clamping bolt 333; when a commercially available linear cylinder is used, the cylinder body of the linear cylinder is fixed to the side of the fixing block 332 away from the abutment block 331 by screw fastening, the piston rod of the linear cylinder passes through the fixing block 332 and is connected to the abutment block 331, and the linear cylinder pushes the abutment block 331 and the adjusting plate 330 to move to tension the pressure band 343).

[0070] The reversing shaft 334 is fixed horizontally within the receiving groove 319 of the pressing plate 318. The reversing wheel 335 is rotatably mounted on the reversing shaft 334 via bearings, ensuring normal rotation of the reversing wheel 335 under the action of the bearings. Figure 13As shown, the pressure belt 343 is sequentially wound around the transition wheel 324, the pressing adjustment wheel 327, the reversing wheel 335 and the guide wheel 322.

[0071] like Figure 11-13 As shown, the second mounting groove 336 is formed along the length of the pressing plate 318 at the bottom of the pressing plate 318. Multiple sets of pressing components are spaced apart within the second mounting groove 336 at the bottom of the pressing plate 318. Each set of pressing components includes a hinge plate 337, a third spring groove 338, a second spring 339, a pressure plate 340, a retaining ring 341, a second pressure roller 342, and a pressing band 343. The upper end of the hinge plate 337 is rotatably mounted within the second mounting groove 336 at the bottom of the pressing plate 318 via a pin (specifically, coaxial through holes are formed on both sides of the second mounting groove 336, and a corresponding shaft hole is formed at the upper end of the hinge plate 337; the pin passes through the through hole and the shaft hole and is limited by the retaining ring, thereby achieving the installation of the hinge plate 337).

[0072] The third spring groove 338 is formed at the top of the hinge plate 337. One end of the second spring 339 is engaged in the third spring groove 338 at the top of the hinge plate 337, and the other end of the second spring 339 abuts against the second mounting groove 336 at the bottom of the pressing plate 318. By setting the third spring groove 338, the second spring 339 can be prevented from falling out. By setting the second spring 339, the elastic pressing of the pressure belt 343 is achieved. The second spring 339 provides the initial clamping force to the pressure belt 343, thereby ensuring that the pressure belt 343 always elastically and evenly adheres to the surface of the cardboard, avoiding pressure damage or excessive gaps caused by rigid pressing.

[0073] The pressure plate 340 is rotatably mounted on the bottom of the hinge plate 337 via the pressure shaft (specifically, the bottom of the hinge plate 337 has coaxial first shaft holes on both sides, and the middle of the pressure plate 340 has a corresponding second shaft hole. The pressure shaft passes through the first shaft hole and the second shaft hole in sequence, and the two ends of the pressure shaft are limited by the snap ring 341 to prevent the pressure shaft from coming out).

[0074] The second pressure roller 342 is rotatably mounted on both sides of the pressure plate 340 via the pressure roller shaft and abuts against the pressure belt 343 (specifically, mounting holes are provided on both sides of the pressure plate 340, the pressure roller shaft passes through the two mounting holes and is interference-fitted with them, and a second pressure roller 342 is mounted on each end of the pressure roller shaft via a bearing).

[0075] The origami component 4 is located at the end of the pressing component 3, such as... Figure 16 , 17As shown, the origami assembly 4 includes a folding frame 400, a folding belt 401, a conveyor wheel 402, a stop bar 403, a stop wheel 404, a stop plate 405, a retaining rod 406, a retaining wheel 407, a retaining groove 408, a pressure bar 409, and a pressure bar wheel 410. The folding frame 400 is set on the workshop floor. The conveyor wheel 402 is rotatably mounted on both sides of the folding frame 400 via a rotating shaft. The folding belt 401 is wound around the conveyor wheel 402. An external servo motor drives the conveyor wheel 402 to rotate, which in turn drives the folding belt 401 to rotate, so as to convey the cardboard forward.

[0076] The abutment rod 403 is inclinedly set on the top of the folding frame 400, the abutment wheel 404 is fixed to the end of the abutment rod 403, the abutment plate 405 is fixed on the abutment wheel 404, and the abutment plate 405 abuts against the lower surface of the upper folding belt 401. The inclined abutment plate 405 can push the horizontal folding belt 401 to tilt, and the two ends of the cardboard rest on the folding belt 401, gradually gathering inward during the conveying process.

[0077] The retaining rod 406 is located on the top of the folding frame 400. The retaining wheel 407 is rotatably mounted on the inner side of the retaining rod 406, and the retaining groove 408 is opened on the outer peripheral surface of the retaining wheel 407. The folding belt 401 is gradually pushed from horizontal to vertical by the abutment plate 405. The vertical folding belt 401 is pressed into the retaining groove 408. Under the retention of the retaining wheel 407, the vertical state of the folding belt 401 is maintained.

[0078] The pressure bar 409 is located on the top of the folding frame 400 and on one side of the retaining wheel 408. The pressure bar wheel 410 is rotatably mounted on the front end of the pressure bar 409 and abuts against the outside of the folding belt 401. The inclined pressure bar wheel 410 gradually presses the folding belt 401 from a vertical state to an inclined state, and finally presses the folding belt 401 to a horizontal state, thereby folding the two sides of the cardboard together inward.

[0079] Tape applicator 5 is used to apply tape to folded cardboard, such as... Figure 18-20 As shown, the tape applicator assembly 5 includes an applicator frame 500, a tape-dispensing roller 501, a tension roller 502, a flipping plate 503, a winding roller 504, a pressing cylinder 505, an applicator plate 506, a pressing roller 507, a cutting mechanism, a sliding table cylinder 521, a push plate 522, a pressure roller mounting plate 523, and a third pressure roller 524. The applicator frame 500 is mounted on a conveyor platform. The tape-dispensing roller 501 is rotatably mounted on one side of the applicator frame 500 via a rotating shaft. The tension roller 502 is rotatably mounted on one side of the applicator frame 500, and the tension roller 502 and the tape-dispensing roller 501 are located on the same side of the applicator frame 500.

[0080] The tape roll is sleeved on the unwinding roller 501, and the unwound tape is wound around the tension roller 502. A flip plate 503 is rotatably mounted on one side of the applicator 500 via a rotating shaft, and the flip plate 503 and the unwinding roller 501 are located on the same side of the applicator 500. The cylinder body of the pressing cylinder 505 is hinged to one side of the applicator 500, and one end of the piston rod of the pressing cylinder 505 is rotatably connected to the flip plate 503 (a commercially available linear cylinder can be used for the pressing cylinder 505). The pressing cylinder 505 drives the flip plate 503 to flip, so that the pressing roller 507 presses the unwound tape onto the cardboard conveyed below.

[0081] The winding wheel 504 is rotatably mounted on the side of the flip plate 503 away from the adhesive applicator 500. The adhesive tape, which passes over the tension roller 502, comes out from under the winding wheel 504. The applicator plate 506 is fixed to one side of the flip plate 503. The back of the adhesive tape (i.e., the non-adhesive side of the tape) that passes over the winding wheel 504 rests against the lower surface of the applicator plate 506. The unwound tape adheres to the lower surface of the applicator plate 506, preventing the tape from scattering and wrinkling during application. The pressure roller 507 is rotatably mounted on the side of the applicator plate 506 away from the winding wheel 504, and the pressure roller 507 rests against the back of the tape, thereby pressing the tape against the folded carton.

[0082] like Figure 20 As shown, the cutting mechanism includes a push cylinder 508, a pad 509, a slide rail 510, a slider 511, a sliding plate 512, a mounting block 513, a third mounting groove 514, a support plate 515, a cutting cylinder 516, a fixing strip 517, a cutting strip 518, a first cutting part 519, and a second cutting part 520. The pad 509 is fixed to the other side of the adhesive applicator 500 by screws, and the slide rail 510 is fixed to the bottom of the pad 509 by screws. The slider 511 is slidably mounted on the slide rail 510. The slide plate 512 is L-shaped and is fixed to the slider 511 by screws. By setting the mutually cooperating slide rail 510 and slider 511, the stability of the slide plate 512's movement is improved. The cylinder body of the push cylinder 508 is fixed on the adhesive applicator 500. The piston rod of the push cylinder 508 passes through the adhesive applicator 500 and is connected to the slide plate 512. By pushing the cylinder 508, the slide plate 512 is driven to slide along the length of the slide rail 510, thereby completing the cutting of the tape below.

[0083] The mounting groove 514 is formed at the bottom of the mounting block 513. The fixing strip 517 and the cutting strip 518 are integrally formed. The support plate 515 is integrally connected to the bottom of the mounting block 513 to support the fixing strip 517 inserted into the mounting groove 514 and prevent the fixing strip 517 from falling off when cutting tape. (During installation, first insert the fixing strip 517 into the mounting groove 514 at the bottom of the mounting block 513. At this time, the fixing strip 517 is supported by the support plate 515. Then, insert the mounting block 513 together with the fixing strip 517 into the bottom of the slide plate 512. Finally, fix the mounting block 513 to one side of the slide plate 512 by tightening screws.)

[0084] The cylinder body of the cutting cylinder 516 is fixed to one side of the slide plate 512 and connected to the cutting strip 518 (a commercially available linear cylinder can be used for the cutting cylinder 516). The cutting cylinder 516 drives the cutting strip 518 to move towards the side closer to the fixed strip 517, thereby completing the cutting of the tape. By pushing the cylinder 508, the slide plate 512 is moved along the length of the slide rail 510, thereby adjusting the cutting position of the tape.

[0085] The first cutting part 519 is integrally connected to one side of the fixing strip 517, and the second cutting part 520 is integrally connected to one side of the cutting strip 518. The first cutting part 519 and the second cutting part are provided with cutting blades on opposite sides. The cutting cylinder 516 drives the cutting strip 518 to move towards the side closer to the fixing strip 517, and the tape is cut by the first cutting part 519 and the second cutting part 520.

[0086] The cylinder body of the slide cylinder 521 is installed on one side of the adhesive applicator 500. The push plate 522 is connected to the sliding part of the slide cylinder 521, and the slide cylinder 521 drives the push plate 522 to move towards the side closer to the cardboard. The pressure roller mounting plate 523 is fixed to the bottom of the push plate 522 by screws. The pressure roller 524 is rotatably installed on the bottom of the pressure roller mounting plate 523. The pressure roller 524 presses against the cardboard after the tape is applied, ensuring that the tape is adhered more firmly and reliably.

[0087] The cardboard box forming machine of this invention includes a paper feeding assembly 1, a correction assembly 2, a pressing assembly 3, a folding assembly 4, and an adhesive tape application assembly 5 arranged sequentially along the cardboard conveying direction. The paper feeding assembly 1 conveys the stacked cardboard sheets forward one by one. The correction assembly 2 and the pressing assembly 3 are arranged sequentially in front of the paper feeding assembly 1 along the cardboard conveying direction, performing two pressing corrections on the cardboard to prevent it from swaying or shifting during conveying, thus affecting subsequent folding and adhesive tape application operations. The folding assembly 4 folds the two sides of the cardboard inward, and finally, the adhesive tape application assembly 5 glues the folded cardboard together.

[0088] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A cardboard box forming machine, characterized in that, It includes a paper feeding assembly (1), a correction assembly (2), a pressing assembly (3), a folding assembly (4), and a tape applicator (5) arranged sequentially along the paperboard conveying direction; The paper feeding assembly (1) includes a first paper feeding mechanism for feeding paperboard and a separation mechanism disposed above the first paper feeding mechanism. The separation mechanism includes a slide bar (111) disposed above the first paper feeding mechanism, a sliding member slidably mounted on the slide bar (111), and a limiting member disposed on one side of the sliding member and located above the first paper feeding mechanism. The gap between the limiting member and the first paper feeding mechanism allows only a single sheet of paperboard to pass through. The correction assembly (2) includes a second paper feeding mechanism and a correction mechanism disposed above the second paper feeding mechanism. The correction mechanism includes a correction plate (225) disposed above the second paper feeding mechanism, a hinge plate (227) rotatably mounted on the bottom of the correction plate (225) and inclined, and a first pressure roller (232) rotatably mounted on the bottom of the hinge plate (227). The first pressure roller (232) abuts against the second paper feeding mechanism. The pressing assembly (3) includes a third paper feeding mechanism and a pressing mechanism disposed above the third paper feeding mechanism. The pressing mechanism includes a pressing plate (318) disposed above the third paper feeding mechanism, guide wheels (322) rotatably disposed on both sides of the pressing plate (318), a pressing belt (343) wrapped around the guide wheels (322), a tensioning member disposed inside the pressing plate (318) for tensioning the pressing belt (343), and pressing belt members spaced apart at the bottom of the pressing plate (318). The origami assembly (4) includes a folding frame (400), a folding strip (401) wrapped around the folding frame (400), an inclined pusher for pushing the folding strip (401) to an inclined position, and a flattening member for pressing the folding strip (401) to a horizontal position. The tape applicator (5) includes an applicator frame (500), a tape-dispensing wheel (501) rotatably mounted on one side of the applicator frame (500), a flip plate (503) swingably mounted on the bottom of the applicator frame (500), a pressing wheel (507) rotatably mounted on the bottom of the flip plate (503), a third pressing wheel (524) disposed on one side of the pressing wheel (507) and pressing the tape against the cardboard, and a cutting mechanism for cutting the tape.

2. The cardboard box forming machine according to claim 1, characterized in that: The sliding member includes a first sliding sleeve (112) slidably sleeved on the slide rod (111), a first mounting plate (114) fixed to one side of the first sliding sleeve (112), a guide wheel mounting plate (119) fixed to the bottom of the first mounting plate (114) and extending along the conveying direction, and a guide wheel (120) rotatably mounted on the bottom of the guide wheel mounting plate (119) and used to press the upper surface of the cardboard.

3. A cardboard box forming machine according to claim 2, characterized in that: The sliding component further includes a first mounting strip (126) mounted above the first paper feeding mechanism, an upper clamping plate (121) and a lower clamping plate (123) fixed on the side of the first mounting plate (114) near the first mounting strip (126), a slot (125) formed between the upper clamping plate (121) and the lower clamping plate (123), and a fastening unit for locking the upper clamping plate (121) and the lower clamping plate (123) onto the first mounting strip (126), wherein the first mounting strip (126) is engaged in the slot (125).

4. The paper feeding structure for cardboard packaging according to claim 3, characterized in that: The limiting member includes a feed paperboard (117) that is height-adjustably installed on the side of the first mounting plate (114) away from the first mounting strip (126) and an arc-shaped portion (118) disposed at the bottom of the feed paperboard (117), the center of the arc of the arc portion (118) being away from the first paper feeding mechanism.

5. A cardboard box forming machine according to claim 4, characterized in that: The limiting component also includes a first fixing plate (115) fixed to one side of the first mounting plate (114), an adjusting screw (116) rotatably mounted on the first fixing plate (115), and a sliding plate (130) slidably mounted on one side of the first mounting plate (114). The feed plate (117) is fixed to the side of the sliding plate (130) away from the first mounting plate (114). The adjusting screw (116) is connected to the feed plate (117) and is used to adjust the height of the feed plate (117).

6. A cardboard box forming machine according to claim 1, characterized in that: The correction mechanism also includes a first spring groove (229) formed at the bottom of the correction plate (225), a boss (233) integrally connected to the hinge plate (227) on the side near the correction plate (225), a second spring groove (230) formed at the top of the boss (233), and a first spring (231) disposed in the first spring groove (229) and the second spring groove (230).

7. A cardboard box forming machine according to claim 1, characterized in that: The tensioning component includes a transition wheel (324) and a reversing wheel (335) rotatably mounted on the inner side of the pressing plate (318), an adjusting wheel adjustablely mounted on the inner side of the pressing plate (318), a tensioning groove (325) penetrating the pressing plate (318), a second limiting plate (328) fixed on the outer side of the pressing plate (318) and disposed opposite to it, a limiting groove (329) formed between the second limiting plates (328), an adjusting plate (330) slidably connected in the limiting groove (329), and an adjusting shaft (326) fixed on the inner side of the adjusting plate (330) and penetrating the tensioning groove (325). The adjusting wheel is rotatably mounted on the adjusting shaft (326), and the pressure belt (343) is sequentially wound around the transition wheel (324), the adjusting wheel, and the reversing wheel (335).

8. A cardboard box forming machine according to claim 7, characterized in that: The tensioning member also includes a fixing block (332) fixed to the outside of the pressing plate (318), a stop block (331) fixed to the outside of the adjusting plate (330), and a tightening bolt (333) screwed onto the fixing block (332), the tightening bolt (333) abutting against the side of the stop block (331) near the fixing block (332).

9. A cardboard box forming machine according to claim 1, characterized in that: The pressing element includes a second mounting groove (336) formed at the bottom of the pressing plate (318), a hinge plate (337) rotatably mounted in the second mounting groove (336), a pressure plate (340) rotatably mounted at the bottom of the hinge plate (337), second pressure rollers (342) rotatably mounted on both sides of the pressure plate (340) and abutting against the pressing belt (343), a third spring groove (338) formed at the top of the hinge plate (337), and a third spring (339) disposed in the third spring groove (338) and abutting against the pressing plate (318).

10. A cardboard box forming machine according to claim 1, characterized in that: The cutting mechanism includes a sliding plate (512) movably disposed on one side of the adhesive applicator (500), a fixing strip (517) fixed to the bottom of the sliding plate (512), a cutting strip (518) elastically connected to the top of the fixing strip (517), a first cutting part (519) disposed on one side of the fixing strip (517), and a second cutting part (520) disposed on one side of the cutting strip (518).

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