A packaging carton bottom sealing device

Abstract

The utility model belongs to the field of packaging paper boxes, and discloses a bottom sealing device for a packaging paper box, comprising a bottom plate, the bottom plate is connected with a transport device and a positioning device, the bottom plate is connected with a fixed frame, two groups of fixed frames are provided, the two groups of fixed frames are respectively connected with an adjusting threaded rod and a fixing rod, the adjusting threaded rod is threadedly connected with a resistance plate, the resistance plate is slidably connected with the fixing rod, the fixed frame is connected with a first motor, the output shaft of the first motor is connected with the adjusting threaded rod, the resistance plate is rotatably connected with a rotating roller, and a plurality of groups of rotating rollers are provided; the bottom plate is connected with a sealing mechanism; the technical scheme can limit the upward movement of a box body, thereby enabling the sealing mechanism at the bottom to stably and tightly stick an adhesive tape to the box body, and the action force of the spring can directly act on the adhesive tape and the bottom of the box body through a compacting roller, thereby improving the compacting effect and quality.

Description

Technical Field

[0001] The utility model relates to the field of packaging cartons, in particular to a bottom sealing device for a packaging carton. Background Art

[0002] Packaging cartons are made of paper products and are used to pack various items. Cartons are subdivided into paper boxes, color boxes, color boxes and oversized odd-shaped beer boxes. Cartons are low-cost, easy to package, suitable for adding fillers, clean, etc. They are suitable for product factory packaging, item transportation, material sorting, etc. When using packaging cartons, put the items to be packaged into the packaging carton with a folded bottom, and then the bottom of the packaging carton needs to be sealed.

[0003] For example, the Chinese utility model (publication number CN215156191U) discloses a bottom sealing device for a packaging carton, including a base, a fixed block, a first motor, a first transmission rod, a second transmission roller and other structures. This technical solution can gradually adjust the position of the packaging carton, thereby achieving the effect of adjusting the position of the packaging carton when the bottom of the packaging carton is carefully sealed, and solves the problem that the packaging carton is easily placed incorrectly when sealing the packaging carton, which causes the tape to tilt when sealing the bottom of the packaging carton, resulting in incomplete sealing of the packaging carton.

[0004] However, the above technical solution still has the following technical problems when it is actually used: there is no positioning device on the upper side of the device, that is, there is no limit on the upper side of the box when the bottom of the box is sealed, which will push the box upward when pasting, resulting in the tape not being pasted tightly; since there is no positioning device on the top, the box will be pushed upward as a whole when the compaction roller contacts the tape later, and the ideal compaction effect cannot be achieved, which in turn affects the efficiency and quality of box sealing. Utility Model Content

[0005] The utility model aims to provide a bottom sealing device for a packaging carton to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] A bottom sealing device for a packaging carton comprises a bottom plate, the bottom plate is connected to a transport device and a positioning device, the bottom plate is connected to a fixed frame, the fixed frame is provided with two groups, the two groups of fixed frames are respectively connected to an adjusting threaded rod and a fixing rod, the adjusting threaded rod is threadedly connected to a resistance plate, the resistance plate is slidably connected to the fixing rod, the fixed frame is connected to a first motor, the output shaft of the first motor is connected to the adjusting threaded rod, the resistance plate is rotatably connected to a rotating roller, and the rotating roller is provided with a plurality of groups; the bottom plate is connected to a sealing mechanism.

[0008] Preferably, the transport device includes transmission rollers, which are rotatably connected to the base plate, and two groups of transmission rollers are provided. The base plate is connected to a third motor, and the output shaft of the third motor is connected to any one of the transmission rollers. The two groups of transmission rollers are commonly connected to a transmission belt, and two groups of transmission belts are provided.

[0009] Preferably, the positioning device includes a positioning open plate, and the positioning open plate is provided with two groups. The base plate is connected with a bidirectional threaded rod and an auxiliary sliding rod, the base plate is connected with a second motor, and the output shaft of the second motor is connected with the bidirectional threaded rod. The two positioning open plates are respectively threadedly connected with the two ends of the bidirectional threaded rod, and the positioning open plates are slidably connected with the auxiliary sliding rod.

[0010] Preferably, the base plate is connected to a resistance device, which includes a mounting plate, the mounting plate is connected to the base plate, the mounting plate is connected to a mounting rod, the mounting rod is slidably connected to a sliding rod, the sliding rod is connected to a connecting block, the sliding rod sleeve is provided with a spring, and the two ends of the spring are respectively connected to the mounting plate and the connecting block; the resistance device is provided with two groups, and the two groups of connecting blocks are respectively connected to compaction rollers and cleaning plates.

[0011] Compared with the prior art, this technical solution produces the following beneficial effects:

[0012] (1) The technical solution is provided with a resistance plate, and a rotating roller is provided on the resistance plate. The resistance plate and the rotating roller can limit the upward movement of the box body, so that the sealing mechanism at the bottom can stably and tightly stick the tape to the box body, and the subsequent compaction roller cannot lift the box body as a whole upward. The force of the spring will directly act on the tape and the bottom of the box body through the compaction roller, thereby improving the compaction effect and quality, and further improving the connection stability between the tape and the box body; the height of the resistance plate can be adjusted by driving the first motor to adjust the threaded rod, so that the device can be used with boxes of different sizes, the structure is simple, and the practicality is greatly improved.

[0013] (2) The technical solution only sets one bidirectional threaded rod, which can also complete the positioning of the open plate, avoiding the transmission error when multiple bidirectional threaded rods rotate at the same time, resulting in the multiple bidirectional threaded rods being unable to rotate at the same speed at the same time, thereby causing the structure to jam and then causing the motor to burn out, thereby improving the stability of the device; a cleaning plate is set to clean the sealing position before the box is sealed, thereby avoiding the attached dust from affecting the posting of the tape and improving the sealing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the partial cross-sectional view of the utility model;

[0015] Figure 2 A top view of a partial cross-sectional view of the auxiliary sliding rod provided by the utility model;

[0016] Figure 3 It is a top sectional view of the utility model;

[0017] Figure 4 A left-side partial cross-sectional view of the rotating roller provided by the utility model;

[0018] Figure 5 A front cross-sectional view of the cleaning plate provided by the utility model;

[0019] Figure numerals: base plate 1, fixed frame 2, transmission roller 3, transmission belt 4, compaction roller 5, positioning open plate 6, fixed rod 7, first motor 8, bidirectional threaded rod 9, rotating roller 10, contact plate 11, second motor 12, third motor 13, auxiliary sliding rod 14, adjusting threaded rod 15, sealing mechanism 16, cleaning plate 17, mounting plate 18, mounting rod 19, spring 20, sliding rod 21, connecting block 22. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0021] like Figures 1 to 5 A packaging carton bottom sealing device shown in the figure includes a bottom plate 1, and the bottom plate 1 is connected to a transport device and a positioning device; the transport device includes a transmission roller 3, and the transmission roller 3 is rotatably connected to the bottom plate 1, and two groups of transmission rollers 3 are provided. The bottom plate 1 is connected to a third motor 13, and the output shaft of the third motor 13 is connected to the rear side transmission roller 3. The two groups of transmission rollers 3 are commonly connected to a transmission belt 4, and two groups of transmission belts 4 are provided. The two groups of transmission belts 4 are respectively located on the left and right sides of the transmission roller 3, and a gap is left in the middle of the two groups of transmission belts 4.

[0022] The positioning device includes a positioning open plate 6, and the positioning open plate 6 is provided with two groups. The base plate 1 is connected with a bidirectional threaded rod 9 and an auxiliary sliding rod 14. The base plate 1 is connected with a second motor 12. The output shaft of the second motor 12 is connected with the bidirectional threaded rod 9. The two positioning open plates 6 are respectively threadedly connected with the two ends of the bidirectional threaded rod 9. The bidirectional threaded rod 9 includes a forward threaded rod and a reverse threaded section, that is, the two positioning open plates 6 are respectively connected with the forward threaded rod and the reverse threaded section. The positioning open plates 6 are slidably connected with the auxiliary sliding rod 14, and the positioning open plates 6 are located on the upper side of the transmission belt 4.

[0023] The bottom plate 1 is connected to a fixed frame 2, and the fixed frame 2 is provided with two groups. The two groups of fixed frames 2 are respectively located on the left and right sides of the bottom plate 1, and the two groups of fixed frames 2 are respectively connected to an adjusting threaded rod 15 and a fixed rod 7, and the adjusting threaded rod 15 is threadedly connected to a contact plate 11, and the contact plate 11 is slidably connected to the fixed rod 7. The fixed frame 2 is connected to a first motor 8, and the output shaft of the first motor 8 is connected to the adjusting threaded rod 15. The contact plate 11 is rotatably connected to a rotating roller 10, and the rotating roller 10 is provided with several groups; the bottom plate 1 is connected to a sealing mechanism 16; the sealing mechanism 16 and the transport device used in this application are prior art, and are also described in the technology disclosed in the Chinese Utility Model (Publication No. CN215156191U). The sealing mechanism 16 and the transport device used in this application are the same as the prior art, and will not be repeated here.

[0024] The base plate 1 is connected to a resistance device, which includes a mounting plate 18, which is connected to the base plate 1, and which is connected to a mounting rod 19. The mounting rod 19 is slidably connected to a sliding rod 21, and the sliding rod 21 is connected to a connecting block 22. The sliding rod 21 is sleeved with a spring 20, and both ends of the spring 20 are respectively connected to the mounting plate 18 and the connecting block 22; the resistance device is provided with two groups, and the two groups of connecting blocks 22 are respectively connected to the compaction roller 5 and the cleaning plate 17.

[0025] The specific implementation process is as follows:

[0026] The adjusting threaded rod 15 is driven to rotate by the first motor 8. Since the fixed rod 7 limits the rotation of the contact plate 11, as the adjusting threaded rod 15 rotates, the contact plate 11 moves upward or downward along the adjusting threaded rod 15, thereby adjusting the distance between the contact plate 11 and the transmission belt 4 to adapt to boxes of different sizes; similarly, the second motor 12 drives the bidirectional threaded rod 9 to rotate. Since the auxiliary sliding rod 14 limits the rotation of the positioning open plate 6, as the bidirectional threaded rod 9 rotates, the two positioning open plates 6 rotate inward or outward along the bidirectional threaded rod 9 at the same time, thereby adjusting the distance between the two groups of positioning open plates 6, which is convenient for positioning boxes of different sizes.

[0027] When in use, the transmission belt 4 is driven to rotate by the third motor 13, and the positions of the contact plate 11 and the positioning open plate 6 are adjusted by the first motor 8 and the second motor 12, and then the box is placed on the transmission belt 4, and the box moves forward along the transmission belt 4, the bottom of the box contacts the transmission belt 4, and the top contacts the rotating roller 10. After being positioned by the positioning open plate 6, the box moves forward regularly, passes through the cleaning plate 17 first, and under the action of the elastic force of the spring 20, the spring 20 contacts the connecting block 22, thereby applying an upward force to the connecting block 22 and the cleaning plate 17. When the box moves to the cleaning plate 17, the cleaning plate 17 can all contact the bottom of the box. As the box continues to move, the dust on the bottom of the box is cleaned by the cleaning plate 17, and the box continues to move. The box is sealed by the sealing mechanism 16, and the box continues to move. When it moves to the upper side of the compacting roller 5, similar to the cleaning plate 17, the compacting roller 5 is contacted with the bottom of the box under the action of the spring 20, and the tape is further compacted, and then the box is discharged from the front. During the whole process, the top of the box is in contact with the rotating roller 10, and there will be no displacement in the up and down directions.

[0028] The present technical solution is provided with a contact plate 11, on which a rotating roller 10 is provided, and the contact plate 11 and the rotating roller 10 can limit the upward movement of the box body, so that the sealing mechanism 16 at the bottom can stably and tightly stick the tape to the box body, and the subsequent compacting roller 5 cannot lift the box body upward as a whole. The force of the spring 20 will directly act on the tape and the bottom of the box body through the compacting roller 5, thereby improving the compaction effect and quality, and further improving the connection stability between the tape and the box body; the contact plate 1 can be adjusted by driving the first motor 8 to adjust the threaded rod 15 1 height, so that the device can be used with boxes of different sizes, with a simple structure and greatly improved practicality; only one bidirectional threaded rod 9 is provided, which can also complete the positioning of the open plate 6, avoiding the transmission error when multiple bidirectional threaded rods 9 rotate at the same time, resulting in the multiple bidirectional threaded rods 9 being unable to rotate at the same speed at the same time, thereby causing the structure to jam and then causing the motor to burn out, thereby improving the stability of the device; a cleaning plate 17 is provided to clean the sealing position before the box is sealed, so as to avoid the attached dust from affecting the posting of the tape and improve the sealing quality.

[0029] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A packaging carton bottom sealing device, characterized in that: The invention comprises a bottom plate (1), wherein the bottom plate (1) is connected to a transport device and a positioning device, the bottom plate (1) is connected to a fixed frame (2), the fixed frame (2) is provided with two groups, the two groups of fixed frames (2) are respectively connected to an adjusting threaded rod (15) and a fixing rod (7), the adjusting threaded rod (15) is threadedly connected to a contact plate (11), the contact plate (11) is slidably connected to the fixing rod (7), the fixed frame (2) is connected to a first motor (8), the output shaft of the first motor (8) is connected to the adjusting threaded rod (15), the contact plate (11) is rotatably connected to a rotating roller (10), and the rotating roller (10) is provided with a plurality of groups; the bottom plate (1) is connected to a box sealing mechanism (16).

2. A packaging carton bottom sealing device as claimed in claim 1, characterized in that: The transport device comprises a transmission roller (3), wherein the transmission roller (3) is rotatably connected to a base plate (1), wherein two groups of transmission rollers (3) are provided, wherein the base plate (1) is connected to a third motor (13), wherein an output shaft of the third motor (13) is connected to any one of the transmission rollers (3), and wherein the two groups of transmission rollers (3) are commonly connected to a transmission belt (4), wherein two groups of transmission belts (4) are provided.

3. A packaging carton bottom sealing device as claimed in claim 1, characterized in that: The positioning device comprises a positioning open plate (6), wherein the positioning open plate (6) is provided with two groups, the base plate (1) is connected with a bidirectional threaded rod (9) and an auxiliary sliding rod (14), the base plate (1) is connected with a second motor (12), the output shaft of the second motor (12) is connected with the bidirectional threaded rod (9), the two positioning open plates (6) are respectively threadedly connected with the two ends of the bidirectional threaded rod (9), and the positioning open plates (6) are slidably connected with the auxiliary sliding rod (14).

4. A packaging carton bottom sealing device as claimed in claim 1, characterized in that: The base plate (1) is connected to a resistance device, which comprises a mounting plate (18), the mounting plate (18) being connected to the base plate (1), the mounting plate (18) being connected to a mounting rod (19), the mounting rod (19) being slidably connected to a sliding rod (21), the sliding rod (21) being connected to a connecting block (22), the sliding rod (21) being sleeved with a spring (20), the two ends of the spring (20) being respectively connected to the mounting plate (18) and the connecting block (22); the resistance device is provided with two groups, and the two groups of connecting blocks (22) are respectively connected to a compacting roller (5) and a cleaning plate (17).

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