Automatic positioning and cutting device for packaging materials

Abstract

The invention relates to the technical field of packaging box cutting, in particular to an automatic packaging material positioning and cutting device which comprises a base, an auxiliary mechanism is arranged on the upper surface of the base, and a plurality of evenly-distributed supporting frames are movably installed on the upper surface of the base and located on the inner side of the auxiliary mechanism. The cutting device further comprises a cutting mechanism used for cutting the packaging box, the cutting mechanism is arranged on the inner side of the auxiliary mechanism, a plurality of connecting rods used for fixing the cutting mechanism are arranged on the auxiliary mechanism, and the cutting device further comprises a limiting mechanism used for limiting the packaging box. According to the packaging box cutting equipment, the cutting area of the cutting mechanism can be freely adjusted according to different specifications and sizes of cut products through the arrangement of the cutting mechanism, so that when packaging boxes with different sizes are cut, the cutting area of the cutting mechanism can be rapidly and conveniently adjusted, the cutting efficiency of the packaging boxes is improved, and meanwhile the applicability of the cutting equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging box cutting, in particular to an automatic positioning and cutting device for packaging materials. Background Art

[0002] Compression molding mainly puts solid thermosetting plastic raw materials into an open mold cavity, and then heats and pressurizes them. After a certain curing time, the plastic cools and takes shape, thus obtaining a packaging box product with the same shape as the mold cavity. At this time, the packaging box product is a whole strip of multiple connected together, and then a cutting device is needed to cut the whole strip of packaging boxes into individual packaging boxes.

[0003] Usually, when cutting boxes, the cutting equipment needs to be equipped with a cutting mold. The whole strip of boxes is placed inside the corresponding cutting mold, and then the cutting knife is pressed on the cutting mold to cut the whole strip of boxes into individual boxes. In this way, the whole strip of boxes is cut. When boxes of different sizes need to be cut, corresponding molds need to be matched, which increases the production cost of the factory. At the same time, the working steps of replacing the cutting mold are complicated, and cutting molds of different specifications need to be stored and taken out, which increases the labor intensity of replacement and affects the working efficiency of the cutting equipment. Summary of the invention

[0004] Therefore, the present invention provides an automatic positioning and cutting device for packaging materials, which solves the above technical problems.

[0005] The present invention provides an automatic positioning and cutting device for packaging materials, comprising a base, an auxiliary mechanism is arranged on the upper surface of the base, a plurality of evenly distributed support frames are movably mounted on the upper surface of the base and located on the inner side of the auxiliary mechanism, the cutting device also comprises a cutting mechanism for cutting a packaging box, the cutting mechanism is arranged on the inner side of the auxiliary mechanism, a plurality of connecting rods for fixing the cutting mechanism are arranged on the auxiliary mechanism, the cutting device also comprises a limiting mechanism for limiting the packaging box, the limiting mechanism is arranged on the upper surface of the base and located on the inner side of the auxiliary mechanism.

[0006] The auxiliary mechanism includes four hydraulic telescopic cylinders fixedly connected to the four corners of the upper surface of the base, the top of the hydraulic telescopic cylinder is fixedly connected to a support block, two adjacent support blocks are jointly provided with a clamping member and a connecting member, the connecting member is located below the clamping member, and a positioning member is provided on the connecting member.

[0007] The positioning member includes a plurality of evenly distributed mounting sleeves slidably connected to the connecting member, the mounting sleeves are fixedly connected to their corresponding connecting rods, the four corners of the upper surface of the mounting sleeves are fixedly connected to stable telescopic pull rods, the upper surfaces of the fixed sections of the four stable telescopic pull rods are commonly fixedly connected to connecting plates, the lower surfaces of the fixed sections of the four stable telescopic pull rods are commonly fixedly connected to a mounting plate, and the lower surface of the mounting plate is fixedly connected to two symmetrical inclined pin blocks with the mounting plate as a reference.

[0008] According to an embodiment of the present invention, the bottom end of the telescopic section of the stable telescopic pull rod is fixedly connected to the upper surface of the mounting sleeve, and the mounting plate is slidably connected to the telescopic section of the stable telescopic pull rod.

[0009] According to an embodiment of the present invention, the limiting mechanism includes two left-right symmetrical support platforms fixedly connected to the upper surface of the base, the upper surface of the support platforms is provided with a plurality of evenly distributed limiting members, and the upper surface of the base is provided with a linkage member.

[0010] According to an embodiment of the present invention, the limiting member includes a limiting sleeve fixedly connected to the upper surface of the support platform, the limiting sleeve is slidably connected to an elastic telescopic limiting plate inside, the telescopic section of the elastic telescopic limiting plate is slidably connected to the limiting sleeve, the telescopic end of the elastic telescopic limiting plate and the lower part of the limiting sleeve are fixedly connected to the elastic telescopic limiting plate, the front and rear two elastic telescopic limiting plates are fixedly connected to the back surfaces of each other, and the upper surface of the support platform and one side of the back surfaces of the front and rear limiting sleeves are fixedly connected to a disguised pulley seat, the end of the pull rope away from the elastic telescopic limiting plate bypasses the disguised pulley seat and passes through the lower surface of the support platform, the lower surface of the limiting sleeve is fixedly connected to an elastic telescopic reset rod, and the bottom end of the telescopic section of the elastic telescopic reset rod is fixedly connected to the positioning plate.

[0011] According to an embodiment of the present invention, the linkage part includes two connecting telescopic pull rods fixedly connected to the upper surface of the base and located on the front and rear sides of the support platform, the top of the connecting telescopic pull rods is fixedly connected to a sickle-shaped linkage plate, and the bottom ends of the vertical sections of the two sickle-shaped linkage plates are commonly fixedly connected to a pulling bar, and the end of the pull rope away from the elastic telescopic limit plate bypasses the disguised pulley seat to the lower surface of the support platform and is fixedly connected to the upper surface of the pulling bar.

[0012] According to an embodiment of the present invention, the connecting member includes two mounting seats fixedly connected to the upper surfaces of two adjacent support blocks, two fixed connecting strips are slidably connected inside the two mounting seats, an elastic telescopic pull rod is fixedly connected to the fixed connecting strip away from the center of the base, one end of the elastic telescopic pull rod away from the fixed connecting strip is fixedly connected to the mounting seat, the positions of the mounting seats distributed left and right are lower than the positions of the mounting seats distributed front and back, the two inclined pin blocks on the mounting plate are located between the opposite surfaces of the two fixed connecting strips and slide up and down with the fixed connecting strips, and the two fixed connecting strips are slidably connected to the corresponding mounting sleeves.

[0013] According to an embodiment of the present invention, the clamping member includes an electric telescopic rod fixedly connected to the upper surface of the support block, the top end of the electric telescopic rod is fixedly connected to a linkage block, two adjacent linkage blocks are commonly fixedly connected to a clamping plate, the positions of the clamping plates distributed left and right are lower than the positions of the clamping plates distributed front and back, and the lower surface of the clamping plate is fixedly connected to the upper surface of the corresponding connecting piece.

[0014] According to an embodiment of the present invention, the cutting mechanism includes a sickle-shaped cutting knife, a Y-shaped cutting knife and a cross-shaped cutting knife, and the sickle-shaped cutting knife, the Y-shaped cutting knife and the cross-shaped cutting knife are clamped with a spliced ​​cutting knife by means of male and female pins. The upper surfaces of the sickle-shaped cutting knife, the Y-shaped cutting knife and the cross-shaped cutting knife are fixedly connected with connecting columns, and the lower surface of the cross-shaped cutting knife is elastically slidably connected with a pushing column along the up and down directions.

[0015] According to an embodiment of the present invention, through holes compatible with connecting rods are provided on the front and rear sides and the left and right sides of the connecting column, and the position of the through holes in the front and rear direction is lower than the position of the through holes in the left and right direction. A plurality of connecting rods are vertically arranged to form a grid, and a plurality of connecting columns are used to form a knife holder grid with sickle-shaped cutting knives, spliced ​​cutting knives, Y-shaped cutting knives and cross-shaped cutting knives. The length of the spliced ​​cutting knives is selected according to the needs of use for splicing, and the cutting stroke of the cutting mechanism is greater than the stroke of the elastic telescopic limit plate against the packaging box.

[0016] According to an embodiment of the present invention, the support frame and the base are detachably arranged and connected via limiting bolts, and the distribution position of the support frame on the base can be freely adjusted according to usage requirements.

[0017] Technical solution of the present invention: 1. Through the setting of the cutting mechanism, the cutting area of ​​the cutting mechanism can be freely adjusted according to the specifications of the cutting product, so that when cutting packaging boxes of different sizes, the cutting area of ​​the cutting mechanism can be quickly and conveniently adjusted, thereby improving the cutting efficiency of the packaging boxes and increasing the applicability of the cutting equipment.

[0018] 2. By combining the auxiliary mechanism with the cutting mechanism, the corresponding cutting size can be quickly and conveniently changed when cutting packaging boxes of different specifications, making the cutting equipment more efficient. At the same time, there is no need to store molds of corresponding sizes, which improves the utilization rate of workshop space.

[0019] 3. By setting the limit mechanism, the packaging box can be positioned before cutting, so as to ensure that the cutting position is more accurate during the cutting process, reduce the defective rate during the cutting process, and improve the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the automatic positioning and cutting device for packaging materials provided by the present invention.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the limiting mechanism and the auxiliary mechanism provided by the present invention.

[0023] Figure 3 This is one of the three-dimensional structural schematic diagrams of the packaging material limiting piece provided by the present invention.

[0024] Figure 4 This is the second schematic diagram of the three-dimensional structure of the packaging material limiting piece provided by the present invention.

[0025] Figure 5 It is one of the three-dimensional structural schematic diagrams of the linkage member provided by the present invention.

[0026] Figure 6 This is the second three-dimensional structural schematic diagram of the linkage member provided by the present invention.

[0027] Figure 7 The present invention provides Figure 6 Enlarged view of part A.

[0028] Figure 8 This is one of the three-dimensional structural schematic diagrams of the positioning member provided by the present invention.

[0029] Fig. 9 This is the second schematic diagram of the three-dimensional structure of the positioning member provided by the present invention.

[0030] Fig.10 It is one of the three-dimensional structural schematic diagrams of the cutting mechanism provided by the present invention.

[0031] Fig.11 This is the second three-dimensional structural schematic diagram of the cutting mechanism provided by the present invention.

[0032] Figure numerals: 1, base; 2, support frame; 3, limit mechanism; 4, auxiliary mechanism; 5, cutting mechanism; 6, connecting rod; 31, limit member; 32, support platform; 33, linkage member; 41, hydraulic telescopic cylinder; 42, connecting member; 43, pressing member; 44, positioning member; 45, supporting block; 51, sickle-shaped cutting knife; 52, splicing cutting knife; 53, Y-shaped cutting knife; 54, cross-shaped cutting knife; 55, pushing column; 56, connecting column; 311, limit sliding sleeve; 312, positioning plate; 313, elastic telescopic limit plate; 314, pull rope; 315, disguised pulley seat; 316, elastic telescopic reset rod; 331, sickle-shaped linkage plate; 332, connecting telescopic rod; 333, pulling bar; 421, fixed connecting bar; 422, elastic telescopic rod; 423, mounting seat; 431, linkage block; 432, clamping plate; 433, electric telescopic rod; 441, mounting sleeve; 442, mounting plate; 443, stabilizing telescopic rod; 444, connecting piece; 445, inclined pin block. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] like Figure 1 As shown, an automatic positioning and cutting device for packaging materials includes a base 1, an auxiliary mechanism 4 is arranged on the upper surface of the base 1, and a plurality of evenly distributed support frames 2 are movably installed on the upper surface of the base 1 and located on the inner side of the auxiliary mechanism 4. The cutting device also includes a cutting mechanism 5 for cutting a packaging box, the cutting mechanism 5 is arranged on the inner side of the auxiliary mechanism 4, and the auxiliary mechanism 4 is provided with a plurality of connecting rods 6 for fixing the cutting mechanism 5. The cutting device also includes a limiting mechanism 3 for limiting the packaging box, the limiting mechanism 3 is arranged on the upper surface of the base 1 and located on the inner side of the auxiliary mechanism 4, the support frame 2 and the base 1 are disassembled and connected by limiting bolts, and the distribution position of the support frame 2 on the base 1 can be freely adjusted according to the use needs.

[0035] like Figure 1 and Figure 2As shown, the limiting mechanism 3 includes two left-right symmetrical support platforms 32 fixedly connected to the upper surface of the base 1 , a limiting member 31 is provided on the upper surface of the support platform 32 , and a linkage member 33 is provided on the upper surface of the base 1 .

[0036] like Figure 1 and Figure 2 As shown, the auxiliary mechanism 4 includes four hydraulic telescopic cylinders 41 that are fixedly connected to the upper surface of the base 1 and are distributed in a rectangular shape. The top of the hydraulic telescopic cylinder 41 is fixedly connected to a support block 45. A clamping member 43 and a connecting member 42 are commonly provided on two adjacent support blocks 45. The connecting member 42 is located below the clamping member 43, and a positioning member 44 is provided on the connecting member 42.

[0037] During specific use, the external conveying equipment pushes the entire compression-molded packaging box to slide from right to left on the support frame 2. When the packaging box moves to the cutting position below the cutting mechanism 5, the external conveying equipment stops conveying, and the hydraulic telescopic cylinder 41 contracts to pull the connecting member 42 downward through the support block 45, and drives the cutting mechanism 5 downward through the positioning member 44 and the connecting rod 6 to cut the packaging box. When the hydraulic telescopic cylinder 41 begins to contract, the linkage member 33 synchronously drives the limiting member 31 to move toward the packaging box, and limits the four corners of the entire packaging box below the cutting mechanism 5 in the cutting area, and then the hydraulic telescopic cylinder 41 continues to contract to drive the cutting mechanism 5 to continue to move downward to cut the packaging box.

[0038] like Figure 2 , Figure 3 and Figure 4 As shown, the limiting member 31 includes a plurality of limiting sleeves 311 fixedly connected to the upper surface of the support platform 32 and evenly distributed along the front-to-back direction, the limiting sleeve 311 is slidably connected with an elastic telescopic limiting plate 313 inside, the telescopic section of the elastic telescopic limiting plate 313 is slidably connected to the limiting sleeve 311, a positioning plate 312 is fixedly connected on the telescopic section of the elastic telescopic limiting plate 313 and below the limiting sleeve 311, a pull rope 314 is fixedly connected to the front surface of the fixed section of the elastic telescopic limiting plate 313, a disguised pulley seat 315 is fixedly connected to the upper surface of the support platform 32 and located on the front side of the limiting sleeve 311, an elastic telescopic reset rod 316 is fixedly connected to the lower surface of the limiting sleeve 311, and the bottom end of the telescopic section of the elastic telescopic reset rod 316 is fixedly connected to the positioning plate 312.

[0039] like Figure 2 , Figure 5 and Figure 6As shown, the linkage part 33 includes a telescopic connecting rod 332 fixedly connected to the upper surface of the base 1 and located on the front and rear sides of the support platform 32. The top of the telescopic connecting rod 332 is fixedly connected to a sickle-shaped linkage plate 331. The bottom ends of the vertical sections of the two sickle-shaped linkage plates 331 distributed front and back are commonly fixedly connected to a pulling bar 333. The end of the pull rope 314 away from the elastic telescopic limiting plate 313 bypasses the disguised pulley seat 315 and passes through the lower surface of the support platform 32 and is fixedly connected to the upper surface of the pulling bar 333.

[0040] When the hydraulic expansion cylinder 41 contracts, the limiting member 31 moves toward the packaging box through the linkage member 33. At this time, the hydraulic expansion cylinder 41 drives the pulling bar 333 to move downward through the sickle-shaped linkage plate 331. With the setting of the connecting telescopic pull rod 332, the sickle-shaped linkage plate 331 can move more smoothly. The pulling bar 333 moves downward, generating a downward pulling force on the pull rope 314. The pull rope 314 changes direction through the disguised pulley seat 315 to pull the elastic expansion limit plate 313 inside the limiting sleeve 311 toward the packaging box. When the positioning plate 312 on the elastic expansion limit plate 313 moves to abut against the bottom end of the limiting sleeve 311, the top of the expansion section of the elastic expansion limit plate 313 abuts against the corresponding packaging box. The multiple elastic telescopic limit plates 313 distributed on the left and right simultaneously abut against the corresponding packaging boxes, so as to limit the four corners of the entire packaging box located below the cutting mechanism 5 and align them with the cutting mechanism 5. At the same time, the elastic telescopic reset rod 316 is compressed. As the hydraulic telescopic cylinder 41 continues to contract, the cutting mechanism 5 is pushed downward to cut the packaging box. Since the positioning plate 312 abuts against the limiting sleeve 311, the telescopic section of the elastic telescopic limit plate 313 remains stationary inside the limiting sleeve 311, and the elastic telescopic limit plate 313 itself contracts. While ensuring that the hydraulic telescopic cylinder 41 can normally drive the cutting mechanism 5 to continue to move downward for cutting, the elastic telescopic limit plate 313 can always limit the packaging box without excessive limiting.

[0041] like Figure 2 and Figure 7 As shown, the connecting member 42 includes a group of mounting seats 423 which are fixedly connected to each other on the upper surfaces of two adjacent support blocks 45, and each group of mounting seats 423 is internally connected to two fixed connecting strips 421 for horizontal sliding connection. The fixed connecting strips 421 on the four groups of mounting seats 423 are divided into two groups distributed front and back and two groups distributed left and right. An elastic telescopic pull rod 422 is fixedly connected to the fixed connecting strip 421 away from the center of the base 1, and one end of the elastic telescopic pull rod 422 away from the fixed connecting strip 421 is fixedly connected to the mounting seat 423, and the position of the mounting seats 423 distributed left and right is lower than the position of the mounting seats 423 distributed front and back.

[0042] like Figure 2 , Figure 8 and Fig. 9 As shown, the positioning member 44 includes a plurality of evenly distributed mounting sleeves 441 that are slidably connected together on two fixed connecting strips 421 on a group of mounting seats 423, and the plurality of mounting sleeves 441 correspond to and are fixedly connected to the plurality of connecting rods 6 one by one, and the four corners of the upper surface of the mounting sleeve 441 are fixedly connected with stable telescopic pull rods 443, the upper surfaces of the fixed sections of the four stable telescopic pull rods 443 are fixedly connected with connecting plates 444, and the lower surfaces of the fixed sections of the four stable telescopic pull rods 443 are fixedly connected with a mounting plate 442, and the lower surface of the mounting plate 442 is fixedly connected with two symmetrical inclined pin blocks 445 based on the mounting plate 442, the bottom end of the telescopic section of the stable telescopic pull rod 443 is fixedly connected to the upper surface of the mounting sleeve 441, and the mounting plate 442 is slidably connected to the telescopic section of the stable telescopic pull rod 443, and the two inclined pin blocks 445 on the mounting plate 442 are located between the opposite surfaces of the two fixed connecting strips 421 and slide up and down with the fixed connecting strip 421.

[0043] like Figure 2 and Figure 7 As shown, the clamping member 43 includes an electric telescopic rod 433 fixedly connected to the upper surface of the support block 45, the top of the electric telescopic rod 433 is fixedly connected to a linkage block 431, and two adjacent linkage blocks 431 are commonly fixedly connected to a clamping plate 432, the position of the clamping plates 432 distributed on the left and right is lower than the position of the clamping plates 432 distributed front and back, and the lower surface of the clamping plate 432 is fixedly connected to the upper surface of the corresponding connecting piece 444.

[0044] In specific use, when it is necessary to change the cutting area of ​​the cutting mechanism 5, first the electric telescopic rod 433 is extended, and the pressing plate 432 is driven to move upward through the linkage block 431, and the pressing plate 432 drives the connecting piece 444 to move upward, and the connecting piece 444 drives the mounting plate 442 to move upward synchronously through the stable telescopic pull rod 443. At this time, the mounting plate 442 drives the inclined pin block 445 to move upward away from the two fixed connecting strips 421, and the inclined pin block 445 no longer generates thrust on the two fixed connecting strips 421. At this time, the two fixed connecting strips 421 are in a relaxed state inside the mounting sleeve 441, and the mounting sleeve 441 is fixed in the fixed state. The connecting strip 421 slides on and drives the connecting rod 6 to move synchronously, so as to adjust the cutting area of ​​the cutting mechanism 5. When the adjustment is completed, the pressing plate 432 is driven to move downward by contracting the stable telescopic pull rod 443. The pressing plate 432 drives the inclined plane pin block 445 on the mounting plate 442 to move downward through the connecting piece 444 and is inserted between the two inclined plane pin blocks 445. The inclined surface of the inclined plane pin block 445 slides downward in contact with the fixed connecting strip 421, and a thrust is generated on the two fixed connecting strips 421 in a direction away from each other, so that the two fixed connecting strips 421 are pressed against the inside of the mounting sleeve 441, so as to limit the mounting sleeve 441.

[0045] like Figure 1 , Fig.10 and Fig.11 As shown, the cutting mechanism 5 includes a sickle-shaped cutting knife 51, a Y-shaped cutting knife 53 and a cross-shaped cutting knife 54. The sickle-shaped cutting knife 51, the Y-shaped cutting knife 53 and the cross-shaped cutting knife 54 are clamped with a splicing cutting knife 52 by means of male and female pins. The upper surfaces of the sickle-shaped cutting knife 51, the Y-shaped cutting knife 53 and the cross-shaped cutting knife 54 are fixedly connected with a connecting column 56, and the lower surface of the cross-shaped cutting knife 54 is elastically slidably connected with a pushing column 55 along the up and down directions.

[0046] like Figure 1 , Fig.10 and Fig.11 As shown, the front and rear sides and the left and right sides of the connecting column 56 are provided with through holes that are compatible with the connecting rod 6. The position of the through holes in the front and rear direction is lower than the position of the through holes in the left and right direction. Multiple connecting rods 6 are arranged perpendicular to each other to form a grid. In conjunction with multiple connecting columns 56, the sickle-shaped cutting knife 51, the spliced ​​cutting knife 52, the Y-shaped cutting knife 53 and the cross-shaped cutting knife 54 together form a knife holder grid. The length of the spliced ​​cutting knife 52 is selected according to the needs of use. The cutting stroke of the cutting mechanism 5 is greater than the stroke of the elastic telescopic limit plate 313 against the packaging box.

[0047] In specific use, when the cutting area of ​​the cutting mechanism 5 is adjusted by moving the connecting rod 6, when the connecting rod 6 in the left and right directions moves, the cross-shaped cutting knife 54, the Y-shaped cutting knife 53 and the sickle-shaped cutting knife 51 are driven to move along the left and right directions. After the movement is completed, the splicing cutting knife 52 of a suitable length is selected and inserted between the opposite surfaces of the cross-shaped cutting knife 54, the Y-shaped cutting knife 53 and the sickle-shaped cutting knife 51, and the cross-shaped cutting knife 54, the Y-shaped cutting knife 53 and the sickle-shaped cutting knife 51 are moved. The knife 51 and the splicing cutting knife 52 are pressed together, and the cutting area adjustment of the cutting mechanism 5 in the left and right directions is completed. The cutting area adjustment method of the cutting mechanism 5 in the front and rear directions is the same as the above steps. Through the setting of the connecting column 56, the connecting column 56 can be compressed when the packaging box is cut. After the cutting is completed, the cut waste is pushed out from the inside of the cross-shaped cutting knife 54 under the action of the elastic force of the connecting column 56 itself, so as to avoid the waste from accumulating inside the cross-shaped cutting knife 54 and affecting the cutting work.

[0048] Working principle: During specific use, the compression-molded packaging box is continuously conveyed on the support frame 2 through an external conveyor belt. When it is conveyed to the cutting position below the cutting mechanism 5, the conveying is stopped, and the hydraulic telescopic cylinder 41 is contracted to drive the connecting member 42 and the linkage member 33 to move downward synchronously. At this time, the linkage member 33 drives the limiting member 31 to move and contact the four corners of the packaging box at the cutting position to limit the packaging box to be cut. As the hydraulic telescopic cylinder 41 continues to contract, it drives the cutting mechanism 5 to cut the packaging box below it. When the size of the cut packaging box changes, the limit of the connecting member 42 on the positioning member 44 is cancelled. The cutting size of the cutting mechanism 5 can be adjusted by the positioning member 44 in cooperation with the connecting rod 6 to adapt to the new size of the packaging box.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic positioning and cutting device for packaging materials, characterized in that: It comprises a base (1), the upper surface of the base (1) is provided with an auxiliary mechanism (4), and a plurality of evenly distributed support frames (2) are movably mounted on the upper surface of the base (1) and located inside the auxiliary mechanism (4); A cutting mechanism (5) for cutting the packaging box, wherein the cutting mechanism (5) is arranged on the inner side of the auxiliary mechanism (4), and the auxiliary mechanism (4) is provided with a plurality of connecting rods (6) for fixing the cutting mechanism (5); A limiting mechanism (3) for limiting the position of the packaging box, wherein the limiting mechanism (3) is arranged on the upper surface of the base (1) and is located inside the auxiliary mechanism (4); The auxiliary mechanism (4) comprises four hydraulic telescopic cylinders (41) which are fixedly connected to the upper surface of the base (1) and are distributed in a rectangular shape. The top of the hydraulic telescopic cylinder (41) is fixedly connected to a support block (45). Two adjacent support blocks (45) are provided with a pressing member (43) and a connecting member (42). The connecting member (42) is located below the pressing member (43). A positioning member (44) is provided on the connecting member (42). The positioning member (44) includes a plurality of evenly distributed mounting sleeves (441) slidably connected to the connecting member (42); the mounting sleeves (441) are fixedly connected to their corresponding connecting rods (6); four corners of the upper surface of the mounting sleeve (441) are fixedly connected to stable telescopic pull rods (443); the upper surfaces of the fixed sections of the four stable telescopic pull rods (443) are commonly fixedly connected to connecting plates (444); the lower surfaces of the fixed sections of the four stable telescopic pull rods (443) are commonly fixedly connected to a mounting plate (442); and the lower surface of the mounting plate (442) is fixedly connected to two symmetrical inclined pin blocks (445) with the mounting plate (442) as a reference.

2. The automatic positioning and cutting device for packaging materials according to claim 1, characterized in that: The bottom end of the telescopic section of the stable telescopic pull rod (443) is fixedly connected to the upper surface of the mounting sleeve (441), and the mounting plate (442) is slidably connected to the telescopic section of the stable telescopic pull rod (443).

3. The automatic positioning and cutting device for packaging materials according to claim 1, characterized in that: The limiting mechanism (3) comprises two left-right symmetrical support platforms (32) fixedly connected to the upper surface of the base (1); a limiting member (31) is provided on the upper surface of the support platform (32); and a linkage member (33) is provided on the upper surface of the base (1).

4. The automatic positioning and cutting device for packaging materials according to claim 3, characterized in that: The limiting member (31) comprises a plurality of limiting sleeves (311) fixedly connected to the upper surface of the support platform (32) and evenly distributed in the front-to-back direction; an elastic telescopic limiting plate (313) is slidably connected inside the limiting sleeve (311); a positioning plate (312) is fixedly connected on the telescopic section of the elastic telescopic limiting plate (313) and located below the limiting sleeve (311); a pull rope (314) is fixedly connected to the front surface of the fixed section of the elastic telescopic limiting plate (313); a disguised pulley seat (315) is fixedly connected to the upper surface of the support platform (32) and located in front of the limiting sleeve (311); an elastic telescopic reset rod (316) is fixedly connected to the lower surface of the limiting sleeve (311); and the bottom end of the telescopic section of the elastic telescopic reset rod (316) is fixedly connected to the positioning plate (312).

5. The automatic positioning and cutting device for packaging materials according to claim 4, characterized in that: The linkage member (33) comprises a connecting telescopic pull rod (332) fixedly connected to the upper surface of the base (1) and located on the front and rear sides of the support platform (32); the top of the connecting telescopic pull rod (332) is fixedly connected to a sickle-shaped linkage plate (331); the bottom ends of the vertical sections of the two sickle-shaped linkage plates (331) distributed front and back are commonly fixedly connected to a pulling bar (333); the end of the pull rope (314) away from the elastic telescopic limit plate (313) bypasses the disguised pulley seat (315) and passes through the lower surface of the support platform (32) and is fixedly connected to the upper surface of the pulling bar (333).

6. The automatic positioning and cutting device for packaging materials according to claim 1, characterized in that: The connecting member (42) comprises a group of mounting seats (423) which are fixedly connected to the upper surfaces of two adjacent support blocks (45); two fixed connecting strips (421) are commonly horizontally slidably connected inside each group of mounting seats (423); an elastic telescopic pull rod (422) is fixedly connected to the fixed connecting strip (421) away from the center of the base (1); one end of the elastic telescopic pull rod (422) away from the fixed connecting strip (421) is fixedly connected to the mounting seat (423); the positions of the mounting seats (423) distributed left and right are lower than the positions of the mounting seats (423) distributed front and back; the two inclined pin blocks (445) on the mounting plate (442) are located between the opposite surfaces of the two fixed connecting strips (421) and are slidably matched with the fixed connecting strips (421) up and down; the two fixed connecting strips (421) are slidably connected to the corresponding mounting sleeves (441) thereon.

7. The automatic positioning and cutting device for packaging materials according to claim 1, characterized in that: The clamping member (43) comprises an electric telescopic rod (433) fixedly connected to the upper surface of the support block (45); the top end of the electric telescopic rod (433) is fixedly connected to a linkage block (431); two adjacent linkage blocks (431) are commonly fixedly connected to a clamping plate (432); the positions of the clamping plates (432) distributed left and right are lower than the positions of the clamping plates (432) distributed front and back.

8. The automatic positioning and cutting device for packaging materials according to claim 4, characterized in that: The cutting mechanism (5) comprises a sickle-shaped cutting knife (51), a Y-shaped cutting knife (53) and a cross-shaped cutting knife (54); the sickle-shaped cutting knife (51), the Y-shaped cutting knife (53) and the cross-shaped cutting knife (54) are mutually clamped with a splicing cutting knife (52) by means of male and female pins; the upper surfaces of the sickle-shaped cutting knife (51), the Y-shaped cutting knife (53) and the cross-shaped cutting knife (54) are all fixedly connected with a connecting column (56); the lower surface of the cross-shaped cutting knife (54) is elastically slidably connected with a material pushing column (55) in an up-and-down direction.

9. The automatic positioning and cutting device for packaging materials according to claim 8, characterized in that: The front and rear sides and the left and right sides of the connecting column (56) are provided with through holes that match the connecting rods (6). The position of the through holes in the front and rear direction is lower than the position of the through holes in the left and right direction. The plurality of connecting rods (6) are mutually perpendicularly arranged to form a grid. The sickle-shaped cutting knife (51), the spliced ​​cutting knife (52), the Y-shaped cutting knife (53) and the cross-shaped cutting knife (54) are matched with the plurality of connecting columns (56) to form a knife holder grid. The length of the spliced ​​cutting knife (52) is selected to be a suitable length according to the use requirements for splicing. The cutting stroke of the cutting mechanism (5) is greater than the stroke of the elastic telescopic limit plate (313) against the packaging box.

10. The automatic positioning and cutting device for packaging materials according to claim 1, characterized in that: The support frame (2) and the base (1) are detachably arranged and connected via limit bolts, and the distribution position of the support frame (2) on the base (1) can be freely adjusted according to usage requirements.

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