Carton conveying equipment

Abstract

The utility model belongs to the technical field of carton production, particularly relates to carton conveying equipment, and provides the following scheme aiming at the problem that the existing equipment cannot carry out more accurate conveying adjustment on cartons with different sizes: the carton conveying equipment comprises a conveying belt, a supporting side plate and a position adjusting component, the carton conveying device is provided with the conveying belt, the supporting side plates and the cartons to be conveyed, the cartons to be conveyed are placed on the conveying belt, conveying of the cartons can be achieved through the conveying belt, and the positions of the cartons can be adjusted through the position adjusting assembly in the conveying process so that the cartons can be accurately located at the specific positions of the conveying belt; furthermore, the carton conveyed by the conveying equipment can be ensured to accurately reach a required area, and accurate position conveying of the carton is realized; and through the arrangement of a contact sensor, the adjusting precision can be ensured, and the paper box adjusting device can be suitable for adjusting paper boxes of different sizes.

Description

Technical Field

[0001] The utility model relates to a conveying device, in particular to a carton conveying device, belonging to the technical field of carton production. Background Art

[0002] A carton is a paper packaging container, which has the characteristics of being light, firm, and suitable for mechanized production, so it is widely used. During the production and use of cartons, it is often necessary to stably transport multiple cartons. In order to improve the transport efficiency, special conveying devices are often used to automatically transport the cartons.

[0003] In the prior art, as disclosed in a carton conveying device with the publication number CN212923407U, it includes a placement platform, a driving member, and a push plate. The push plate is vertically pressed on the upper surface of the placement platform, and the driving member can drive the push plate to perform a reciprocating linear motion in the horizontal direction. This application has the effect of facilitating the conveyance of cartons at corners. However, during the actual transportation process, for the conveyed cartons, carton loading and unloading or the utilization of cartons are often carried out. Therefore, when the cartons are conveyed to the end, the positions of the cartons need to be further adjusted to facilitate the removal of the cartons by a mechanical gripper or to accurately place the items to be loaded into the cartons. The prior art only optimizes the conveying method of cartons at corners and cannot accurately adjust the positions of the conveyed cartons. Another carton conveying mechanism that is easy to adjust and disclosed in the publication number CN214878166U clamps the cartons during transportation through a left baffle and a right baffle to prevent the cartons from shifting horizontally during transportation. At the same time, the adjustable left baffle and right baffle can adjust the distance between the left baffle and the right baffle according to different carton sizes, which can meet various requirements. In addition, the upper limit conveying mechanism can adjust the height through which the cartons pass to prevent the cartons from moving up and down, further ensuring the stability of carton transportation. This conveying mechanism can provide anti-offset protection during the carton transportation process, that is, ensure that the cartons can be transported at accurate positions. However, in actual use, since the sizes of the cartons are different, the prior art adjusts the distance between the left and right baffles to meet the positioning transportation of different cartons. But for each size of carton, the distance needs to be adjusted once, resulting in multiple adjustments being rather cumbersome. If the conveyed cartons are of different sizes and need to be classified, this anti-offset structure cannot be used for the positioning transportation of cartons. Therefore, the existing positioning transportation structures have great limitations. Secondly, for the offset of cartons during transportation, on the one hand, it is the offset of the position of the conveyor belt, and on the other hand, it is the offset of the distance between adjacent two cartons. The existing conveying mechanisms cannot control the cartons to be transported at the same spacing, that is, they cannot achieve more accurate conveying adjustment for different sizes of cartons. Summary of the Invention

[0004] The present utility model provides a carton conveying device to solve the problem that existing equipment cannot perform more precise conveying adjustment on cartons of different sizes.

[0005] The present utility model realizes the above object through the following technical solutions: A carton conveying device includes a conveyor belt, supporting side plates, and a carton to be conveyed. The carton to be conveyed is placed on the conveyor belt, and the two sides of the conveyor belt are connected with the supporting side plates. Position adjusting components are also arranged on the two sides of the conveyor belt, and the two position adjusting components are respectively connected to the supporting side plates.

[0006] The position adjusting component includes a push plate and a push rod. The push plate is movably arranged on the two sides of the conveyor belt, and a contact sensor is embedded on the inner side surface of the push plate. The push rod is movably connected to the bottom of the push plate, and two push rods are arranged at the bottom end of the push plate. Contact sensors are embedded on the opposite inner side surfaces of the two push rods, and the contact sensors are in signal transmission connection with an external control terminal.

[0007] As a further scheme of the present utility model: Rolling rollers are arranged at both ends of the supporting side plates, and both ends of the rolling rollers are respectively rotatably connected to the inner side surfaces of the supporting side plates. A conveying stepping motor is fixedly connected to the outer side surface of one of the supporting side plates, and the conveying stepping motor is coaxially connected to one end of one of the rolling rollers. A conveyor belt is sleeved on the roller bodies of the two rolling rollers, and the conveying stepping motor is controlled to start and stop through an external terminal.

[0008] As a further scheme of the present utility model: An inner bracing plate is arranged between the two supporting side plates. Both ends of the inner bracing plate are respectively fixedly connected to the inner side surfaces of the supporting side plates, and the installation position of the inner bracing plate and the axes of the two position adjusting components are located in the same vertical plane. A proximity sensor is installed at the middle part of the upper plate surface of the inner bracing plate. A plurality of induction metal sheets are attached to the inner side belt body of the conveyor belt, and the induction metal sheets are connected to the central axis of the conveyor belt in an equidistant distribution manner, and the proximity sensor is in signal transmission connection with an external control terminal.

[0009] As a further scheme of the present utility model: A plurality of identification blocks are coated on the outer side belt body of the conveyor belt, and the identification blocks are arranged in one-to-one correspondence with the induction metal sheets. An annular groove is formed on the middle roller body of the rolling roller, and the carton to be conveyed placed on the conveyor belt is located at the identification block.

[0010] As a further scheme of the present utility model: A plurality of supporting legs are also arranged below the supporting side plates, and the supporting legs are respectively vertically fixedly connected to both ends and the middle plate body of the supporting side plates.

[0011] As a further solution of the utility model: The position adjusting assembly further includes a push rod support plate. The bottom end of the push rod support plate is fixedly connected to the outer side surface of the support side plate. An electric push rod is inserted through the upper end of the push rod support plate, and the telescopic end of the electric push rod is connected to the back side of the push plate. A diagonal strut is also connected between the tail end of the electric push rod and the push rod support plate. A limit switch is also installed on the back side of the push plate. When the push plate is in a fully retracted state, the limit switch connected to the back side of the push plate abuts against the push rod support plate.

[0012] As a further solution of the utility model: A plurality of contact sensors are arranged on the inner side surface of the push plate at equal intervals, and at least two of the contact sensors connected to the push plate are in contact with the side wall of the carton. The electric push rod is in signal transmission connection with an external control terminal, and the two electric push rods are driven synchronously.

[0013] As a further solution of the utility model: A threaded rotating rod is arranged below the push plate. Both ends of the bottom edge of the push plate are fixedly connected with connecting seats. The threaded rotating rod is rotatably connected to the connecting seats. A driving stepping motor is fixedly connected to the outside of one of the connecting seats. The driving stepping motor is coaxially connected to one end of the threaded rotating rod. A positive and negative threaded rod body is arranged on the threaded rotating rod, and sliders are respectively sleeved on the threaded rod bodies of the threaded rotating rod, and the sliders are connected to the push rods.

[0014] As a further solution of the utility model: At least two contact sensors are embedded in the opposite side surfaces of the push rods. The driving stepping motor is in signal transmission connection with an external control terminal, and the driving stepping motors arranged on the two push plates are driven synchronously.

[0015] As a further solution of the utility model: A limit sliding groove is opened at the bottom edge of the push plate. The upper end of the slider is connected with a limit clamping block, and the limit clamping block is clamped in the limit sliding groove. Rolling wheels are also connected to both side edges of the limit clamping block, and the rolling wheels are attached to the inner wall of the limit sliding groove. A limit switch is fixedly connected to the side wall of the slider close to the connecting seat, and the limit switch is in signal transmission connection with an external terminal.

[0016] The beneficial effects of the utility model are:

[0017] 1. There are a conveyor belt, a support side plate and a carton to be conveyed. The carton to be conveyed is placed on the conveyor belt. The carton can be conveyed through the conveyor belt, and during the conveying process, the position of the carton can be adjusted by the position adjusting assembly so that the carton can be accurately located at a specific position on the conveyor belt, thereby ensuring that the cartons conveyed by the conveying device can accurately reach the required use area and realizing the accurate position conveying of the cartons;

[0018] 2. The position adjustment assembly includes a push plate, a push rod, and a contact sensor. By moving the push plates on both sides of the conveyor belt towards each other, the lateral axis of the cardboard box can be made to coincide with the central axis of the conveyor belt. And by moving the push rods towards each other, the position of the cardboard box can be further adjusted so that the longitudinal axis of the cardboard box coincides with the axis positions of the two position adjustment assemblies, achieving the adjustment of the position of the cardboard box. Moreover, through the setting of the contact sensor, the accuracy of the adjustment can be ensured, and it can be applicable to the adjustment of cardboard boxes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present invention;

[0020] Figure 2 is a schematic diagram of the combined connection structure of the support side plate and the rolling roller of the present invention;

[0021] Figure 3 is a schematic diagram of the cross-sectional structure of the conveyor belt of the present invention;

[0022] Figure 4 is of the present invention Figure 3 schematic diagram of the structure at A;

[0023] Figure 5 is a schematic front view structure diagram of the position adjustment assembly of the present invention;

[0024] Figure 6 is a schematic rear view structure diagram of the position adjustment assembly of the present invention;

[0025] Figure 7 is a schematic side view plane structure diagram of the present invention;

[0026] Figure 8 is of the present invention Figure 7 schematic diagram of the structure at B;

[0027] Figure 9 is a schematic diagram of the connection structure of the push plate and the push rod of the present invention;

[0028] Figure 10 is a schematic side view structure diagram of the push plate and the slider of the present invention.

[0029] In the figure: 1, conveyor belt; 11, identification block; 12, induction metal sheet; 2, supporting side plate; 21, inner bracing plate; 22, proximity sensor; 23, rolling roller; 24, annular groove; 3, conveying stepping motor; 4, position adjusting assembly; 41, push plate; 42, electric push rod; 43, push rod support plate; 44, diagonal brace; 45, contact sensor; 46, threaded rotating rod; 47, pushing stepping motor; 48, slider; 49, push rod; 410, limit chute; 411, limit block; 412, roller; 413, limit switch; 414, connecting seat; 5, support leg; 6, cardboard box. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] As Figure 1 、 Figure 5 and Figure 6 shown, a cardboard box conveying device includes a conveyor belt 1, supporting side plates 2 and a cardboard box 6 to be conveyed. The cardboard box 6 to be conveyed is placed on the conveyor belt 1. The two sides of the conveyor belt 1 are connected with supporting side plates 2. Position adjusting assemblies 4 are also arranged on the two sides of the conveyor belt 1, and the two position adjusting assemblies 4 are respectively connected to the supporting side plates 2. The transmission of the cardboard box 6 can be realized through the conveyor belt 1, and the position of the cardboard box 6 can be adjusted through the position adjusting assembly 4 during the conveying process, so that the cardboard box 6 can be accurately located at a specific position of the conveyor belt 1, thereby ensuring that the cardboard box 6 conveyed by the conveying device can accurately reach the required use area, realizing the accurate position transmission of the cardboard box 6;

[0033] The position adjustment assembly 4 includes a push plate 41 and a push rod 49. The push plate 41 is movably arranged on both sides of the conveyor belt 1. A contact sensor 45 is embedded on the inner side surface of the push plate 41. The push rod 49 is movably connected to the bottom of the push plate 41, and two push rods 49 are arranged at the bottom end of the push plate 41. Contact sensors 45 are embedded on the opposite inner side surfaces of the two push rods 49. The contact sensors 45 are in signal transmission connection with an external control terminal. By the opposite movement of the push plates 41 located on both sides of the conveyor belt 1, the lateral axis of the carton 6 can be made to coincide with the central axis position of the conveyor belt 1. And through the opposite movement of the push rods 49, the position of the carton 6 can be further adjusted so that the longitudinal axis of the carton 6 coincides with the axis positions of the two position adjustment assemblies 4, realizing the adjustment of the position of the carton 6. And through the setting of the contact sensors 45, the accuracy of the adjustment can be ensured, and it can be applicable to adjusting cartons 6 of different sizes.

[0034] Embodiment 2

[0035] Improved on the basis of Embodiment 1:

[0036] As Figures 1 to 4 shown, rolling rollers 23 are arranged at both ends of the support side plate 2, and both ends of the rolling rollers 23 are respectively rotatably connected to the inner side surface of the support side plate 2. A conveyor stepping motor 3 is fixedly connected to the outer side surface of one of the support side plates 2, and the conveyor stepping motor 3 is coaxially connected to one end of one of the rolling rollers 23. A conveyor belt 1 is sleeved on the roller bodies of the two rolling rollers 23. The conveyor stepping motor 3 is controlled to start and stop through an external terminal. By driving one of the rolling rollers 23 to rotate by the conveyor stepping motor 3, the conveyor belt 1 can be driven to transmit, and the carton 6 placed on the conveyor belt 1 can be conveyed. And the external terminal can control the start and stop of the conveyor stepping motor 3 so that the conveyor belt 1 can intermittently transmit.

[0037] Furthermore, an inner tension plate 21 is provided between the two support side plates 2. The two ends of the inner tension plate 21 are respectively fixedly connected to the inner side surfaces of the support side plates 2, and the installation position of the inner tension plate 21 and the axes of the two position adjustment assemblies 4 are located in the same vertical plane. A proximity sensor 22 is installed at the middle part of the upper plate surface of the inner tension plate 21. A plurality of induction metal sheets 12 are attached to the inner side belt body of the conveyor belt 1, and the induction metal sheets 12 are connected to the central axis of the conveyor belt 1 at equal intervals. The proximity sensor 22 is in signal transmission connection with an external control terminal, so that during the rotation of the conveyor belt 1, one of the induction metal sheets 12 can move to directly above the proximity sensor 22 and be sensed by the proximity sensor 22. At this time, the external terminal cuts off the power supply of the conveying stepping motor 3. When the position adjustment assembly 4 returns to the initial state after completing the position adjustment of the box body 6, the external terminal can receive the signal of the completion of the adjustment. At this time, the conveying stepping motor 3 continues to operate to drive the conveyor belt 1 to drive, so as to realize the intermittent start and stop of the conveying stepping motor 3, and further control the conveyor belt 1 to stop at a precise position after driving a certain distance, and the parking position is exactly at the position adjustment assemblies 4 provided on both sides of the conveyor belt 1.

[0038] Furthermore, a plurality of identification blocks 11 are coated on the outer side belt body of the conveyor belt 1. The identification blocks 11 and the induction metal sheets 12 are arranged in one-to-one correspondence. An annular groove 24 is formed in the middle roller body of the rolling roller 23. When the cardboard box 6 to be conveyed placed on the conveyor belt 1 is located at the identification block 11, when the conveyor belt 1 stops at a precise position, the cardboard box 6 placed at the identification block 11 can be exactly located between the two position adjustment assemblies 4, so as to realize the adjustment of the position of the cardboard box 6. Moreover, the formed annular groove 24 can reserve a certain space for the movement of the induction metal sheet 12 to prevent the induction metal sheet 12 from being squeezed and deformed by the roller body when it is conveyed to the position of the rolling roller 23.

[0039] Furthermore, a plurality of support legs 5 are further provided below the support side plates 2, and the support legs 5 are respectively vertically and fixedly connected to the two ends and the middle plate body of the support side plates 2. The stable support of the support side plates 2 can be realized through the support legs 5, and further the conveying device can be stably placed in the working area for use.

[0040] Such as Figures 6 to 10As shown, the position adjustment assembly 4 further includes a push rod support plate 43. The bottom end of the push rod support plate 43 is fixedly connected to the outer side surface of the support side plate 2. An electric push rod 42 is inserted through the upper end of the push rod support plate 43, and the telescopic end of the electric push rod 42 is connected to the back surface of the push plate 41. A diagonal brace 44 is also connected between the tail end of the electric push rod 42 and the push rod support plate 43. A limit switch 413 is installed on the back surface of the push plate 41. When the push plate 41 is in the fully retracted state, the limit switch 413 connected to the back surface of the push plate 41 abuts against the push rod support plate 43. The tail end of the electric push rod 42 is supported and fixed by the diagonal brace 44, and the front end of the electric push rod 42 is supported and fixed by the upper end of the push rod support plate 43 to ensure the firm installation position of the electric push rod 42. Moreover, the electric push rod 42 can push the two push plates 41 to move towards or away from each other to realize the pushing of the cardboard box 6. After the entire adjustment operation of the cardboard box 6 is completed, the push plate 41 will return to the initial position. At this time, the limit switch 413 connected to the back surface of the push plate 41 abuts against the push rod support plate 43 to generate a in-place signal, enabling the peripheral device to receive the signal that the entire adjustment operation is completed, and then enabling the conveyor belt 1 to continue running to adjust the position of the next cardboard box 6.

[0041] Furthermore, a number of contact sensors 45 are arranged at equal intervals on the inner side surface of the push plate 41, and at least two of the contact sensors 45 connected to the push plate 41 are in contact with the side wall of the cardboard box 6. The electric push rod 42 is connected to an external control terminal for signal transmission, and the two electric push rods 42 are driven synchronously. When the two push plates 41 are pushed simultaneously, one of the push plates 41 can push the cardboard box 6 that deviates from the central axis of the conveyor belt 1. When the cardboard box 6 is pushed to the middle position of the conveyor belt 1, both push plates 41 can be in contact with the side wall of the cardboard box 6. At this time, the contact sensors 45 on both sides receive contact signals, and the external device can control the electric push rod 42 to stop pushing. Based on the principle that two points determine a line, only when at least two contact sensors 45 are in contact with the side wall of the cardboard box 6 can it be ensured that the cardboard box 6 is in a planar contact state with the push plate 41, and the side of the cardboard box 6 is horizontal with the push plate 41, that is, it can ensure the precise longitudinal adjustment of the placement position of the cardboard box 6 on the conveyor belt 1.

[0042] A threaded rotary rod 46 is arranged below the push plate 41. Both ends of the bottom edge of the push plate 41 are fixedly connected with connecting seats 414. The threaded rotary rod 46 is rotatably connected to the connecting seats 414. A driving stepper motor 47 is fixedly connected to the outside of one of the connecting seats 414. The driving stepper motor 47 is coaxially connected to one end of the threaded rotary rod 46. The threaded rotary rod 46 is provided with a forward and reverse threaded rod body, and sliders 48 are respectively sleeved on the threaded rod bodies of the threaded rotary rod 46. The sliders 48 are connected to the push rods 49. By rotating the driving stepper motor 47, the threaded rotary rod 46 can be driven to rotate, and then the two sliders 48 can drive the push rods 49 to move towards or away from each other, so as to realize the lateral adjustment of the carton 6.

[0043] Further, at least two contact sensors 45 are embedded in the opposite side surfaces of the push rods 49. The driving stepper motor 47 is in signal transmission connection with an external control terminal, and the driving stepper motors 47 arranged on the two push plates 41 are synchronously driven. After the push plates 41 adjust the longitudinal position of the carton 6, by driving the push rods 49 to move synchronously through the driving stepper motor 47, one of the push rods 49 can push the two cartons 6 deviating from the axis of the position adjustment assembly 4. When the carton 6 is pushed to the middle position, both push rods 49 on both sides can contact the side wall of the carton 6. At this time, both contact sensors 45 on both sides receive contact signals, and the external terminal can control the driving stepper motor 47 to rotate in the reverse direction, and at the same time the electric push rod 42 returns to the initial position, that is, it can ensure the accurate adjustment of the carton 6 longitudinally and laterally, and is convenient for adjusting the next carton 6.

[0044] Further, a limiting chute 410 is opened at the bottom edge of the push plate 41. The upper end of the slider 48 is connected with a limiting block 411, and the limiting block 411 is clamped in the limiting chute 410. Both side edges of the limiting block 411 are also connected with rollers 412, and the rollers 412 are attached to the inner wall of the limiting chute 410. A limiting switch 413 is fixedly connected to the side wall of the slider 48 close to the connecting seat 414, and the limiting switch 413 is in signal transmission connection with the external terminal. Through the limiting effect of the limiting block 411 and the limiting chute 410, it can be ensured that the slider 48 can only move linearly towards or away from each other, and the arranged rollers 412 can make the moving process smoother. When the driving stepper motor 47 rotates in the reverse direction to drive the two sliders 48 to move in the reverse direction, when the limiting switch 413 touches the connecting seat 414, it means that the slider 48 moves to the end position, and at this time, the movement of the slider 48 can be stopped.

[0045] Working principle: The conveying stepper motor 3 drives one of the rolling rollers 23 to rotate, thereby driving the conveyor belt 1 to transmit, and the carton 6 placed on the conveyor belt 1 can be conveyed. One of the inductive metal sheets 12 moves to directly above the proximity sensor 22 and is sensed by the proximity sensor 22. At this time, the peripheral terminal cuts off the power supply to the conveying stepper motor 3, so as to realize the intermittent start and stop of the conveying stepper motor 3, and then the conveyor belt 1 can be controlled to stop at a precise position after driving a certain distance, and the parking position is exactly at the position adjustment assembly 4 provided on both sides of the conveyor belt 1. When the two push plates 41 are pushed simultaneously, one of the push plates 41 can push the carton 6 deviating from the central axis of the conveyor belt 1. When the carton 6 is pushed to the middle position of the conveyor belt 1, the push plates 41 on both sides can contact the side wall of the carton 6. At this time, the contact sensors 45 on both sides receive the contact signals, and the peripheral terminal can control the electric push rod 42 to stop pushing, that is, it can ensure the precise longitudinal adjustment of the placement position of the carton 6 on the conveyor belt 1. When the carton 6 is pushed to the middle position, the push rods 49 on both sides can contact the side wall of the carton 6. At this time, the contact sensors 45 on both sides receive the contact signals, and the peripheral terminal can control the pushing stepper motor 47 to rotate in the reverse direction, and at the same time the electric push rod 42 returns to the initial position, that is, it can ensure the precise longitudinal and transverse adjustment of the carton 6, and it is convenient to adjust the next carton 6.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A carton conveying device, comprising a conveyor belt (1), a supporting side plate (2) and a carton (6) to be conveyed, characterized in that: Cartons (6) to be conveyed are placed on the conveyor belt (1), support side plates (2) are connected to both sides of the conveyor belt (1), position adjustment components (4) are also arranged on both sides of the conveyor belt (1), and the two position adjustment components (4) are respectively connected to the support side plates (2); The position adjustment component (4) comprises a push plate (41) and a push rod (49), wherein the push plate (41) is movably arranged on both sides of the conveyor belt (1), and a contact sensor (45) is embedded in the inner side surface of the push plate (41), and the push rod (49) is movably connected to the bottom of the push plate (41), and two push rods (49) are arranged at the bottom end of the push plate (41), and contact sensors (45) are embedded in the opposite inner sides of the two push rods (49), and the contact sensor (45) is connected to the control terminal of the external device in a signal transmission manner.

2. The carton conveying device according to claim 1, characterized in that: Rolling rollers (23) are provided at both ends of the supporting side plate (2), and the two ends of the rolling rollers (23) are rotatably connected to the inner side surfaces of the supporting side plates (2), and a conveying stepping motor (3) is fixedly connected to the outer side surface of one of the supporting side plates (2), and the conveying stepping motor (3) is coaxially connected to one end of one of the rolling rollers (23), and conveyor belts (1) are sleeved on the roller bodies of the two rolling rollers (23), and the conveying stepping motor (3) is controlled to start and stop by an external terminal.

3. The carton conveying device according to claim 2, characterized in that: An inner support plate (21) is provided between the two supporting side plates (2), the two ends of the inner support plate (21) are respectively fixedly connected to the inner side surfaces of the supporting side plates (2), and the installation position of the inner support plate (21) is located in the same vertical plane as the axes of the two position adjustment components (4), a proximity sensor (22) is installed in the middle part of the upper plate surface of the inner support plate (21), a plurality of sensing metal sheets (12) are placed on the inner belt body of the conveyor belt (1), and the sensing metal sheets (12) are connected to the central axis of the conveyor belt (1) in an equidistantly distributed manner, and the proximity sensor (22) is connected to the control terminal of the external device for signal transmission.

4. The carton conveying device according to claim 3, characterized in that: The outer belt body of the conveyor belt (1) is coated with a plurality of identification blocks (11), the identification blocks (11) are arranged in a one-to-one correspondence with the inductive metal sheets (12), an annular groove (24) is provided on the middle roller body of the rolling roller (23), and the cartons to be conveyed placed on the conveyor belt (1) are located at the identification blocks (11).

5. The carton conveying device according to claim 3, characterized in that: A plurality of support legs (5) are also provided below the support side plate (2), and the support legs (5) are respectively vertically fixedly connected to the two ends of the support side plate (2) and the middle plate body.

6. The carton conveying device according to claim 1, characterized in that: The position adjustment assembly (4) further comprises a push rod support plate (43), the bottom end of which is fixedly connected to the outer side surface of the support side plate (2), an electric push rod (42) is inserted through the upper end of the push rod support plate (43), and the telescopic end of the electric push rod (42) is connected to the back side surface of the push plate (41), and an oblique support rod (44) is also connected between the rear end of the electric push rod (42) and the push rod support plate (43), and a limit switch (413) is also installed on the back side surface of the push plate (41), and when the push plate (41) is in a fully retracted state, the limit switch (413) connected to the back side surface of the push plate (41) abuts against the push rod support plate (43).

7. The carton conveying device according to claim 6, characterized in that: The inner side surface of the push plate (41) is provided with a plurality of contact sensors (45) distributed in an equidistant manner, and the number of contact sensors (45) connected to the push plate (41) in contact with the side wall of the carton is at least two, the electric push rod (42) is connected to the control terminal of the external device for signal transmission, and the two electric push rods (42) are driven synchronously.

8. The carton conveying device according to claim 7, characterized in that: A threaded rotating rod (46) is arranged below the push plate (41), and two ends of the bottom edge of the push plate (41) are fixedly connected to connecting seats (414). The threaded rotating rod (46) is rotatably connected to the connecting seats (414), and a pushing stepping motor (47) is fixedly connected to the outer side of one of the connecting seats (414). The pushing stepping motor (47) is coaxially connected to one end of the threaded rotating rod (46), and the threaded rotating rod (46) is provided with a positive and negative threaded rod body, and a slider (48) is respectively threadedly sleeved on the threaded rod body of the threaded rotating rod (46), and the slider (48) is connected to the push rod (49).

9. The carton conveying device according to claim 8, characterized in that: At least two contact sensors (45) are embedded in the side opposite to the push rod (49), the push stepper motor (47) is connected to the control terminal of the external device for signal transmission, and the push stepper motors (47) arranged on the two push plates (41) are synchronously driven.

10. The carton conveying device according to claim 9, characterized in that: A limit slide groove (410) is provided at the bottom edge of the push plate (41), the upper end of the slider (48) is connected to a limit block (411), and the limit block (411) is clamped in the limit slide groove (410), and rollers (412) are connected to both sides of the limit block (411), and the rollers (412) are placed on the inner wall of the limit slide groove (410), and a side wall of the slider (48) close to the connecting seat (414) is fixedly connected to a limit switch (413), and the limit switch (413) is connected to the external terminal in a signal transmission manner.

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