Automatic case opening apparatus

Abstract

The utility model belongs to automatic packaging equipment technical field discloses an automatic opening equipment. The automatic opening equipment includes conveyor belt device, adsorption device and uncapping device. Adsorption device includes adsorption air cylinder, and adsorption air cylinder sets up in one side of conveyor belt device, and adsorption air cylinder can make the box cover and the box body along the opening line rotation separation by adsorbing the box cover of product, and uncapping device includes telescopic cylinder and opening push rod, and product is driven under the conveyor belt device along the first direction intermittent motion, and passes adsorption device and uncapping device in turn, and opening push rod is connected in the output of telescopic cylinder, when the box cover separates from the box body, telescopic cylinder can drive the box opening push rod and extend into the box cover and the box body between, when product continues to move along the first direction, opening push rod can along the opening line and press the overturning box cover. Operation process is coherent, and the action is simple, saves the cost while being convenient for efficient completion.

Description

Technical Field

[0001] This utility model relates to the field of automated packaging equipment technology, and in particular to an automatic box opening device. Background Technology

[0002] Flip-top boxes are widely used in the packaging structures of many products such as food, tobacco, and furniture. In the process of automated production, automatic box-opening equipment is usually used instead of manual box opening to save labor costs. At the same time, it also facilitates the coordinated operation of other subsequent production steps to improve production efficiency.

[0003] Existing box-opening equipment lacks sufficient automation and has low opening efficiency, thus affecting overall production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic box-opening device that has high efficiency in box-opening operations, a high degree of automation, strong versatility, and saves labor.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Automatic box opening equipment, including:

[0007] Conveyor belt device;

[0008] An adsorption device includes an adsorption cylinder, which is disposed on one side of the conveyor belt device. The adsorption cylinder can adsorb the lid of the product, causing the lid to rotate and separate from the box body along the opening line. The lid is rotatably connected to the box body.

[0009] The lid opening device includes a telescopic cylinder and a box opening push rod. The product moves intermittently along a first direction under the drive of the conveyor belt device and passes through the adsorption device and the lid opening device in sequence. The box opening push rod is connected to the output end of the telescopic cylinder.

[0010] When the lid is separated from the box body, the telescopic cylinder can drive the opening push rod to extend between the lid and the box body. When the product continues to move along the first direction, the opening push rod can press and flip the lid along the opening line.

[0011] Preferably, the box-opening push rod includes:

[0012] The first segment extends along the first direction;

[0013] The second segment is arranged parallel to the first segment, and the first segment and the second segment are spaced apart in the second direction;

[0014] A connecting section, one end of which is connected to the first section and the other end of which is connected to the second section, wherein the product, driven by the conveyor belt device, is pressed against the first section, the connecting section and the second section in sequence by the box opening line;

[0015] The first direction is perpendicular to the second direction.

[0016] Preferably, in the second direction, when the box opening line is inclined, one of the first segment and the second segment is located above the higher end of the box opening line, and the other is located above the lower end of the box opening line.

[0017] Alternatively, in the second direction, when the opening line is horizontally positioned, the height of the second segment is higher than that of the first segment.

[0018] Preferably, the device also includes a positioning device, which includes a positioning cylinder. The positioning cylinder is disposed opposite to the adsorption device, and a positioning side stop is provided on the side of the conveyor belt device near the adsorption device. The positioning cylinder is configured to press the box against the positioning side stop.

[0019] Preferably, the positioning device further includes:

[0020] A positioning plate is fixedly installed at the output end of the positioning cylinder.

[0021] An adapter bracket is fixedly mounted on the positioning plate.

[0022] The positioning roller is rotatably mounted on the adapter bracket. When the positioning plate presses against the box body, the positioning roller can also press against the box body.

[0023] Preferably, the positioning device further includes a positioning adjustment frame, the positioning adjustment frame comprising:

[0024] A height adjustment frame is slidably mounted on the fixed housing of the conveyor belt device in a vertical direction, and the height adjustment frame can be locked onto the fixed housing;

[0025] A width adjustment bracket is slidably mounted on the height adjustment bracket along the second direction, the width adjustment bracket can be locked onto the height adjustment bracket, and the fixed end of the positioning cylinder is mounted on the width adjustment bracket.

[0026] Preferably, both the height adjustment frame and the width adjustment frame are provided with scales for measuring length.

[0027] Preferably, the lid-opening device further includes:

[0028] A first slider is slidably disposed on one side of the conveyor belt device, and the first slider can be locked to the conveyor belt device;

[0029] The first vertical adjustment rod is slidably inserted through the first slider in the vertical direction and can be locked to the first slider;

[0030] The second slider is fixedly connected to the top of the first vertical adjusting rod;

[0031] A first horizontal adjusting rod passes through the second slider along the second direction and can be locked to the second slider. The fixed end of the telescopic cylinder is fixedly connected to the end of the first horizontal adjusting rod away from the second slider.

[0032] Preferably, the adsorption device further includes:

[0033] The third slider is slidably disposed on one side of the conveyor belt device, and the third slider can be locked to the conveyor belt device;

[0034] The second vertical adjustment rod is slidably inserted through the third slider in the vertical direction and can be locked to the third slider;

[0035] The fourth slider is fixedly connected to the top of the second vertical adjusting rod;

[0036] The second horizontal adjustment rod passes through the third slider along the second direction and can be locked to the fourth slider. The fixed end of the adsorption cylinder is fixedly connected to the end of the second horizontal adjustment rod away from the fourth slider.

[0037] Preferably, the conveyor belt device is provided with a plurality of limiting blocks at intervals in the first direction, and a product is placed between two adjacent limiting blocks.

[0038] The beneficial effects of this utility model are:

[0039] After the conveyor belt drives the product to the adsorption device, it stops moving. The adsorption cylinder adsorbs the lid, and the opening push rod extends between the lid and the box body. The adsorption cylinder releases the lid, so that the lid is completely pressed against the opening push rod. The conveyor belt drives the product to continue moving in the first direction, and the opening push rod presses against and flips the lid along the opening line. Finally, the telescopic cylinder drives the opening push rod to reset, and the conveyor belt can convey the next product to the adsorption device for another lid-flipping operation. The conveyor belt, adsorption device, and lid-flipping device work together to complete the automatic lid-flipping operation of the box. The operation process is smooth, the actions are simple, and it is easy to complete efficiently. At the same time, the structure is simple, which can effectively save material and labor costs. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the automatic box opening device described in this utility model when used for a slanted-opening flip-top box;

[0041] Figure 2 This is a schematic diagram of the structure of the automatic box opening device described in this utility model when used for a flat-opening flip-top box.

[0042] In the picture:

[0043] 100. Product; 101. Box lid; 102. Box body; 103. Box opening line;

[0044] 1. Conveyor belt device; 11. Positioning side guard; 12. Fixed housing; 13. Limiting block; 14. Guide rail;

[0045] 2. Adsorption device; 21. Adsorption cylinder; 22. Third slider; 23. Second vertical adjustment rod; 24. Fourth slider; 25. Second horizontal adjustment rod;

[0046] 3. Lid opening device; 31. Telescopic cylinder; 32. Box opening push rod; 321. First section; 322. Second section; 323. Connecting section; 33. First slider; 34. First vertical adjustment rod; 35. Second slider; 36. First horizontal adjustment rod;

[0047] 4. Positioning device; 41. Positioning cylinder; 42. Positioning plate; 43. Adapter bracket; 44. Positioning roller; 45. Positioning adjustment frame; 451. Height adjustment frame; 452. Width adjustment frame. Detailed Implementation

[0048] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0049] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0052] like Figures 1-2 As shown, this utility model provides an automatic box opening device for automatically flipping the box lid 101. The automatic box opening device includes a conveyor belt device 1, a suction device 2, and a lid opening device 3. The adsorption device 2 includes an adsorption cylinder 21, which is located on one side of the conveyor belt device 1. The adsorption cylinder 21 can adsorb the lid 101 of the product 100, causing the lid 101 to rotate and separate from the box body 102 along the opening line 103. The lid 101 is rotatably connected to the box body 102. The opening device 3 includes a telescopic cylinder 31 and an opening push rod 32. The product 100 moves intermittently along the first direction under the drive of the conveyor belt device 1 and passes through the adsorption device 2 and the opening device 3 in sequence. The opening push rod 32 is connected to the output end of the telescopic cylinder 31. When the lid 101 separates from the box body 102, the telescopic cylinder 31 can drive the opening push rod 32 to extend between the lid 101 and the box body 102. When the product 100 continues to move along the first direction, the opening push rod 32 can press and flip the lid 101 along the opening line 103.

[0053] After the conveyor belt device 1 drives the product 100 to the adsorption device 2, it stops moving. The adsorption cylinder 21 adsorbs the box cover 101, and the opening push rod 32 extends between the box cover 101 and the box body 102. The adsorption cylinder 21 releases the box cover 101, so that the box cover 101 is completely pressed against the opening push rod 32. The conveyor belt device 1 drives the product 100 to continue moving in the first direction, and the opening push rod 32 presses against the flipped box cover 101 along the opening line 103. Finally, the telescopic cylinder 31 drives the opening push rod 32 to reset, and the conveyor belt device 1 can convey the next product 100 to the adsorption device 2 for the next flipping operation. The conveyor belt device 1, the adsorption device 2, and the opening device 3 cooperate with each other to complete the automatic opening operation of the flipped box. The operation process is smooth and simple, which is convenient for efficient completion. At the same time, the structure is simple and can effectively save material and labor costs.

[0054] It should be noted that the lid 101 and the body 102 are rotatably connected by a hinge structure or hinge structure commonly used in the art.

[0055] For example, in this embodiment, the conveyor belt device 1 is a stepping conveyor belt structure commonly used in the art. Its principle and specific structure can be referred to the prior art, and will not be described in detail here.

[0056] For example, in this embodiment, both the adsorption cylinder 21 and the telescopic cylinder 31 are commonly used cylinder structures in the art. Their principles and specific structures can be referred to the prior art, and will not be described in detail here.

[0057] Specifically, the box-opening push rod 32 includes a first segment 321, a second segment 322, and a connecting segment 323. The first segment 321 extends along a first direction; the second segment 322 is arranged parallel to the first segment 321, and the first and second segments 321 are spaced apart in a second direction; one end of the connecting segment 323 is connected to the first segment 321, and the other end is connected to the second segment 322. Driven by the conveyor belt device 1, the box-opening line 103 of the product 100 sequentially presses against the first segment 321, the connecting segment 323, and the second segment 322; the second direction is perpendicular to the first direction. The above configuration involves the first segment 321, the second segment 322, and the connecting segment 323 working together. When the lid 101 separates from the box body 102, the first segment 321 extends between the lid 101 and the box body 102. Subsequently, the adsorption cylinder 21 releases the lid 101, causing the lid 101 to press against the first segment 321. As the product 100 continues to move along the first direction, the lid 101 presses against the connecting segment 323 and the second segment 322 in sequence, and under the reaction force of the connecting segment 323 and the second segment 322, it flips relative to the opening line 103 until it is fully opened. This configuration offers high operational efficiency while maintaining a simple and reliable working principle.

[0058] More specifically, the box-opening push rod 32 is detachably connected to the output end of the telescopic cylinder 31, and multiple push rods are provided. With the above configuration, the operator can select the box-opening push rod 32 that matches the actual size of the product 100. The angle, position, and length of the connecting section 323, the first section 321, and the second section 322 should be set according to the tilt direction, angle, and length of the box-opening line 103. As long as it can be ensured that the box-opening push rod 32 will not separate from the box cover 101 before the box cover 101 is fully flipped.

[0059] More specifically, in the second direction, when the opening line 103 is inclined, one of the first segment 321 and the second segment 322 is located above the higher end of the opening line 103, and the other is located above the lower end of the opening line 103; or, in the second direction, when the opening line 103 is horizontal, the height of the second segment 322 is higher than that of the first segment 321. This arrangement allows the automatic opening and closing device to accommodate flip-top boxes with flat openings (such as...). Figure 2 (as shown) and flip-top boxes with slanted openings (such as) Figure 1 (As shown); When the product 100 presses against the box-opening push rod 32, during the process of the product 100 moving relative to the box-opening push rod 32 in the second direction, the contact point between the product 100 and the box-opening push rod 32 passes through the first segment 321, the connecting segment 323 and the second segment 322 in sequence, and the height of the contact point gradually increases, thereby causing the box cover 101 to gradually flip over until it is fully opened; the structure has low production cost and is easy to maintain.

[0060] For example, in this embodiment, the connecting segment 323 is provided with multiple segments of different lengths and angles, and the two ends of the connecting segment 323 are detachably connected to the first segment 321 and the second segment 322 one by one through slots or threaded structures, which facilitates installation and disassembly, and makes the connecting segment 323 applicable to different models of flip boxes to ensure the accuracy of the operation.

[0061] Specifically, the automatic box opening device also includes a positioning device 4, which includes a positioning cylinder 41. The positioning cylinder 41 is positioned opposite to the adsorption device 2. A positioning side baffle 11 is provided on the side of the conveyor belt device 1 near the adsorption device 2. The positioning cylinder 41 is configured to press the box body 102 against the positioning side baffle 11. With the above arrangement, the positioning device 4 and the positioning side baffle 11 cooperate with each other. If the placement position of some products 100 is skewed, the positioning cylinder 41 can reset it, thereby ensuring that the adsorption position of the adsorption cylinder 21 will not shift, improving the accuracy of the operation and reducing the probability of error. At the same time, it can also ensure that the box body 102 will not be skewed or separated from the conveyor belt device 1 due to excessive suction force of the adsorption cylinder 21.

[0062] For example, in this embodiment, the positioning cylinder 41 is a cylinder structure commonly used in the art. Its principle and specific structure can be referred to the prior art, and will not be described in detail here.

[0063] More specifically, the positioning device 4 also includes a positioning plate 42, a transfer bracket 43, and a positioning roller 44. The positioning plate 42 is fixedly mounted on the output end of the positioning cylinder 41; the transfer bracket 43 is fixedly mounted on the positioning plate 42; and the positioning roller 44 is rotatably mounted on the transfer bracket 43. When the positioning plate 42 presses against the box body 102, the positioning roller 44 also presses against the box body 102. With this configuration, the positioning plate 42 and the positioning roller 44 cooperate with each other. Under the drive of the positioning cylinder 41, the positioning plate 42 presses the box body 102 against the positioning side stop 11. When the suction cylinder 21 releases the box cover 101, the conveyor belt device 1 continues to drive the product 100 to move along the first direction, and the positioning roller 44 ensures that the movement direction of the box body 102 does not become skewed.

[0064] For example, in this embodiment, the positioning roller 44 is rotatably connected to the adapter bracket 43, and two of them are provided. The two positioning rollers 44 are spaced apart on both sides of the positioning plate 42 in the first direction.

[0065] For example, in this embodiment, the positioning roller 44 is provided with an anti-slip structure, which can be an anti-slip pad, such as a rubber pad; or, the anti-slip structure can be an anti-slip protrusion, which can be a dotted protrusion or a textured protrusion of any shape, as long as it can increase the contact friction between its location and the box body 102. The specific form is similar to the prior art, and is not specifically limited in this embodiment.

[0066] More specifically, the positioning device 4 also includes a positioning adjustment frame 45, which comprises a height adjustment frame 451 and a width adjustment frame 452. The height adjustment frame 451 is slidably mounted on the fixed housing 12 of the conveyor belt device 1 in the vertical direction and can be locked onto the fixed housing 12. The width adjustment frame 452 is slidably mounted on the height adjustment frame 451 in the second direction and can be locked onto the height adjustment frame 451. The fixed end of the positioning cylinder 41 is mounted on the width adjustment frame 452. With this configuration, the height adjustment frame 451 and the width adjustment frame 452 cooperate to adjust the position of the fixed end of the positioning cylinder 41 in the vertical and second directions, making it suitable for products 100 of different sizes and highly versatile.

[0067] Specifically, the opening device 3 further includes a first slider 33, a first vertical adjusting rod 34, a second slider 35, and a first horizontal adjusting rod 36. The first slider 33 is slidably disposed on one side of the conveyor belt device 1 and can be locked to the conveyor belt device 1. The first vertical adjusting rod 34 is slidably inserted through the first slider 33 in the vertical direction and can be locked to the first slider 33. The second slider 35 is fixedly connected to the top end of the first vertical adjusting rod 34. The first horizontal adjusting rod 36 is inserted through the second slider 35 in the second direction and can be locked to the second slider 35. The fixed end of the telescopic cylinder 31 is fixedly connected to the end of the first horizontal adjusting rod 36 away from the second slider 35. This configuration allows for position adjustment of the fixed end of the telescopic cylinder 31 in both the vertical and second directions, making it suitable for products 100 of different sizes and highly versatile.

[0068] It should be noted that the first slider 33 and the first vertical adjusting rod 34, and the second slider 35 and the first horizontal adjusting rod 36 are all locked to each other by bolt locking structures commonly used in the art. The principle and specific structure are existing technologies that have been disclosed and will not be described in detail here.

[0069] Specifically, the adsorption device 2 further includes a third slider 22, a second vertical adjusting rod 23, a fourth slider 24, and a second horizontal adjusting rod 25. The third slider 22 is slidably disposed on one side of the conveyor belt device 1 and can be locked to the conveyor belt device 1. The second vertical adjusting rod 23 is slidably inserted through the third slider 22 in the vertical direction and can be locked to the third slider 22. The fourth slider 24 is fixedly connected to the top end of the second vertical adjusting rod 23. The second horizontal adjusting rod 25 is inserted through the third slider 22 in the second direction and can be locked to the fourth slider 24. The fixed end of the adsorption cylinder 21 is fixedly connected to the end of the second horizontal adjusting rod 25 away from the fourth slider 24. This configuration allows for position adjustment of the fixed end of the positioning adsorption cylinder 21 in both the vertical and second directions, making it suitable for products 100 of different sizes and highly versatile.

[0070] It should be noted that the third slider 22 and the second vertical adjusting rod 23, and the fourth slider 24 and the second horizontal adjusting rod 25 are all locked to each other by bolt locking structures commonly used in the art. The principle and specific structure are existing technologies that have been disclosed and will not be described in detail here.

[0071] Specifically, the conveyor belt device 1 is provided with a plurality of limiting blocks 13 spaced apart in the first direction, and a product 100 is placed between two adjacent limiting blocks 13. The limiting blocks 13 are provided to prevent the product 100 from sliding relative to the conveyor belt device 1 in the first direction due to its own inertia.

[0072] More specifically, the fixed housing 12 of the conveyor belt device 1 is provided with a guide rail 14, and the first slider 33 and the third slider 22 are both slidably engaged with the guide rail 14. The first slider 33 and the third slider 22 can be locked onto the guide rail 14 by a bolt locking structure commonly used in the art, thereby realizing the position adjustment of the first slider 33 and the third slider 22 in the first direction, so as to improve the versatility of the automatic box opening device.

[0073] Preferably, in this embodiment, the height adjustment frame 451, the width adjustment frame 452, the first horizontal adjustment rod 36, and the second horizontal adjustment rod 25 are all printed with scales so that the operator can adjust them according to the actual size of the product 100, thereby improving versatility and ensuring the accuracy of the operation.

[0074] This utility model also provides a method for opening the lid, using the above-mentioned automatic box opening device, including the following steps:

[0075] S1. Conveyor belt device 1 drives product 100 to move to adsorption device 2.

[0076] In the above steps, after the conveyor belt device 1 drives the product 100 to the adsorption device 2, it stops moving; at the same time, the positioning cylinder 41 drives the positioning plate 42 and the positioning roller 44 to extend, pressing the box body 102 against the positioning side stop 11.

[0077] S2, the adsorption cylinder 21 adsorbs the box cover 101, causing the box cover 101 to separate from the box body 102 along the opening line 103.

[0078] In the above steps, the adsorption cylinder 21 adsorbs the box cover 101. Under the pressure of the positioning plate 42, the box body 102 will not tilt due to excessive suction of the adsorption cylinder 21, or separate from the conveyor belt device 1.

[0079] S3, the telescopic cylinder 31 drives the box-opening push rod 32 to extend between the box cover 101 and the box body 102.

[0080] In the above steps, the first segment 321 of the box opening push rod 32 extends between the box cover 101 and the box body 102 to ensure that the box cover 101 and the box body 102 are always separated.

[0081] S4, adsorption cylinder 21 releases box cover 101.

[0082] In the above steps, the adsorption cylinder 21 releases the box cover 101, so that the box cover 101 is completely pressed against the first section 321 of the box opening push rod 32.

[0083] S5. The conveyor belt device 1 drives the product 100 to continue moving in the first direction, and the box opening push rod 32 presses against the flipping box cover 101 along the box opening line 103.

[0084] In the above steps, the conveyor belt device 1 drives the product 100 to continue moving in the first direction. The lid 101 presses against the connecting section 323 and the second section 322 in sequence, and flips relative to the opening line 103 under the reaction force of the connecting section 323 and the second section 322 until it is fully opened. Finally, the telescopic cylinder 31 drives the opening push rod 32 to reset, and the conveyor belt device 1 can convey the next product 100 to the adsorption device 2 for the next lid opening operation.

[0085] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic box-opening device, characterized in that, include: Conveyor belt device (1); The adsorption device (2) includes an adsorption cylinder (21), which is disposed on one side of the conveyor belt device (1). The adsorption cylinder (21) can adsorb the lid (101) of the product (100), so that the lid (101) and the box body (102) rotate and separate along the opening line (103). The lid (101) is rotatably connected to the box body (102). The lid opening device (3) includes a telescopic cylinder (31) and a box opening push rod (32). The product (100) moves intermittently along the first direction under the drive of the conveyor belt device (1) and passes through the adsorption device (2) and the lid opening device (3) in sequence. The box opening push rod (32) is connected to the output end of the telescopic cylinder (31). When the lid (101) is separated from the box body (102), the telescopic cylinder (31) can drive the opening push rod (32) to extend between the lid (101) and the box body (102). When the product (100) continues to move along the first direction, the opening push rod (32) can press and flip the lid (101) along the opening line (103).

2. The automatic box-opening device according to claim 1, characterized in that, The box-opening push rod (32) includes: The first segment (321) extends along the first direction; The second segment (322) is arranged parallel to the first segment (321), and the first segment (321) and the second segment (322) are spaced apart in the second direction; The connecting section (323) is connected at one end to the first section (321) and at the other end to the second section (322). Under the drive of the conveyor belt device (1), the product (100) is pressed against the first section (321), the connecting section (323) and the second section (322) in sequence by the box opening line (103). The first direction is perpendicular to the second direction.

3. The automatic box-opening device according to claim 2, characterized in that, In the second direction, when the box opening line (103) is inclined, one of the first segment (321) and the second segment (322) is located above the higher end of the box opening line (103), and the other is located above the lower end of the box opening line (103); Alternatively, in the second direction, when the opening line (103) is set horizontally, the height of the second segment (322) is higher than that of the first segment (321).

4. The automatic box-opening device according to claim 2, characterized in that, It also includes a positioning device (4), which includes a positioning cylinder (41) and is arranged opposite to the adsorption device (2). The conveyor belt device (1) is provided with a positioning side stop (11) on the side near the adsorption device (2). The positioning cylinder (41) is configured to press the box body (102) against the positioning side stop (11).

5. The automatic box-opening device according to claim 4, characterized in that, The positioning device (4) further includes: The positioning plate (42) is fixedly installed at the output end of the positioning cylinder (41): The adapter bracket (43) is fixedly mounted on the positioning plate (42); The positioning roller (44) is rotatably mounted on the adapter bracket (43). When the positioning plate (42) presses against the box body (102), the positioning roller (44) can also press against the box body (102).

6. The automatic box-opening device according to claim 4, characterized in that, The positioning device (4) further includes a positioning adjustment frame (45), which includes: A height adjustment frame (451) is slidably mounted on the fixed housing (12) of the conveyor belt device (1) in the vertical direction, and the height adjustment frame (451) can be locked onto the fixed housing (12); A width adjustment bracket (452) is slidably disposed on the height adjustment bracket (451) along the second direction. The width adjustment bracket (452) can be locked onto the height adjustment bracket (451). The fixed end of the positioning cylinder (41) is disposed on the width adjustment bracket (452).

7. The automatic box-opening device according to claim 6, characterized in that, Both the height adjustment frame (451) and the width adjustment frame (452) are provided with scales for measuring length.

8. The automatic box-opening device according to any one of claims 2-7, characterized in that, The lid opening device (3) also includes: The first slider (33) is slidably disposed on one side of the conveyor belt device (1), and the first slider (33) can be locked to the conveyor belt device (1). The first vertical adjustment rod (34) is slidably inserted through the first slider (33) in the vertical direction and can be locked to the first slider (33). The second slider (35) is fixedly connected to the top of the first vertical adjusting rod (34); The first horizontal adjustment rod (36) passes through the second slider (35) along the second direction and can be locked to the second slider (35). The fixed end of the telescopic cylinder (31) is fixedly connected to the end of the first horizontal adjustment rod (36) away from the second slider (35).

9. The automatic box-opening device according to any one of claims 2-7, characterized in that, The adsorption device (2) further includes: The third slider (22) is slidably disposed on one side of the conveyor belt device (1), and the third slider (22) can be locked to the conveyor belt device (1). The second vertical adjustment rod (23) is slidably inserted through the third slider (22) in the vertical direction and can be locked to the third slider (22). The fourth slider (24) is fixedly connected to the top of the second vertical adjusting rod (23); The second horizontal adjustment rod (25) passes through the third slider (22) along the second direction and can be locked to the fourth slider (24). The fixed end of the adsorption cylinder (21) is fixedly connected to the end of the second horizontal adjustment rod (25) away from the fourth slider (24).

10. The automatic box-opening device according to any one of claims 1-7, characterized in that, The conveyor belt device (1) is provided with a plurality of limit blocks (13) spaced apart in the first direction, and a product (100) is placed between two adjacent limit blocks (13).

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