Limiting material guiding mechanism and carton printing machine

Abstract

The utility model discloses a limiting and guiding mechanism and a carton printing machine, and relates to the technical field of carton processing. The conveying device comprises a rack, two conveying rollers rotationally arranged at the two ends of the rack correspondingly, and a conveying belt arranged on the two conveying rollers in a transmission and winding mode, and further comprises a limiting mechanism and a driving mechanism, and the limiting mechanism comprises a mounting frame arranged on the rack; the two supporting plates are arranged on the mounting frame, the movable plates are hinged to the supporting plates through the shaft rods, the guiding belt is wound around the supporting plates and the movable plates through the first rotating rods, the second rotating rods and the shaft rods in a transmission mode, and when a carton board is placed on the conveying belt to be conveyed, the two movable plates are driven by the second driving piece to synchronously and reversely swing around the hinge point; the carton board is shifted and adjusted, the carton board is corrected to the position centered with the conveying belt, the two supporting plates are used for conveying and limiting the carton board, the carton board makes contact with the guiding belt during correction and limiting guiding, the contact friction force can be reduced, conveying of the carton board can be assisted, and the carton board is conveyed stably and smoothly at the constant speed.

Description

Technical Field

[0001] The present application relates to the technical field of carton processing, and in particular to a position limiting material guiding mechanism and a carton printing machine. Background Art

[0002] Cartons are the most widely used packaging products. According to different materials, there are corrugated boxes, single-layer cardboard boxes, etc. Due to their light weight, low cost, and certain compression and shock absorption effects, they are widely used in various types of packaging products. Usually, it is necessary to print patterns or texts on the outer surface of the carton to indicate the model and type of the internal products, so as to facilitate the classification of the internal products. Therefore, a printing press will be used to print the carton;

[0003] In order to ensure printing efficiency, conveyor belts are usually used to transmit and print cartons. Workers place cartons on conveyor belts. During the transmission process, the carton board may be skewed due to the placement of the workers, which leads to inaccurate printing. Two guide plates are also used to limit and guide the transmitted cartons. However, the carton board itself is made of multiple layers of cardboard. The end face friction of the carton board is relatively large. The contact friction between the end face and the guide plate is large, which makes it easy for the transmission to be stuck, making the transmission not uniform and smooth. Especially for some printing machines using spray printing, the transmission is not uniform, resulting in poor printing effect. Therefore, the present application proposes a limiting material guiding mechanism and a carton printing machine. Summary of the invention

[0004] The purpose of the present application is to solve the problem that the existing guide plates are used to guide the cartons, and the friction makes the carton transmission not uniform and smooth, resulting in poor printing effect. The present application provides a limited material guiding mechanism and a carton printing machine.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] One of the purposes of the present application is to provide a limiting material guiding mechanism, comprising a frame, two transmission rollers rotatably arranged at two ends of the frame, and a transmission belt driven and wound around the two transmission rollers, and also comprising:

[0007] The limiting mechanism comprises a mounting frame arranged on a frame, support plates are arranged on opposite sides of the inner wall of the mounting frame, a first rotating rod is rotatably arranged at one end of the support plate, and a shaft rod is arranged at the other end, a movable plate is hinged on the shaft rod, a second rotating rod is rotatably arranged at the free end of the movable plate, a guide belt is arranged on the first rotating rod, the shaft rod and the second rotating rod for transmission, a first driving member for driving the two first rotating rods to rotate synchronously in opposite directions is arranged on the frame, and a second driving member is arranged on the frame, which is used to drive the two movable plates to swing synchronously in opposite directions around the hinge point;

[0008] Two adjusting members are respectively arranged on two sides of the frame and are used for respectively adjusting the tension of the two guide belts.

[0009] Furthermore, the first driving member includes a rotating shaft rotatably arranged on a mounting frame, two transmission bevel gears are fixedly provided on the rotating shaft, driven bevel gears are fixedly provided on the two first rotating rods and the two driven bevel gears are respectively meshed with teeth of the two transmission bevel gears, and a pulley assembly is connected between the rotating shaft and one of the transmission rollers.

[0010] Furthermore, the second driving member includes a mounting plate arranged on the mounting frame, a sliding rod slidingly passing through the mounting plate, one end of the sliding rod is hinged to two first support rods, and the free ends of the two first support rods are respectively hinged to two movable plates, a driving motor is arranged on the mounting plate, a disc is fixed to the output shaft of the driving motor, a second support rod is hinged to the other end of the sliding rod, and the free end of the second support rod is eccentrically hinged to the disc.

[0011] Furthermore, the adjusting member includes a fixed plate arranged on the frame, an adjusting rod is slidably arranged on the fixed plate, an adjusting wheel is rotatably arranged on one end of the adjusting rod, a guide belt transmission is wound around the adjusting wheel, a limit plate is fixedly provided on the other end of the adjusting rod, and a spring mounted on the adjusting rod is installed between the limit plate and the fixed plate.

[0012] Furthermore, a pressure wheel is fixedly provided on the rotating shaft.

[0013] Furthermore, the pressing wheel comprises a pressing column fixed on the rotating shaft, and the outer surface of the pressing column is provided with a plurality of arc-shaped plates distributed in a ring array.

[0014] Furthermore, two connecting rods are arranged on one side of the mounting frame, and guide rods are rotatably arranged at the free ends of the two connecting rods. Two pressing belts are transmission-wound between the guide rods and the rotating shaft, and the two pressing belts are respectively located at the two ends of the pressing wheel.

[0015] The second purpose of the present application is to provide a carton printing machine, comprising the above-mentioned limiting material guiding mechanism, and also comprising a portal frame arranged on the frame, wherein the inner bottom wall of the portal frame is provided with a spray printing mechanism.

[0016] The beneficial effects of this application are as follows:

[0017] In the present application, two support plates are arranged on the mounting frame, and a movable plate is hinged on the support plate through an axis rod, and a guide belt is wound around the support plate and the movable plate through a first rotating rod, a second rotating rod and an axis rod transmission. When the carton board is placed on the conveyor belt for transmission, the two movable plates are driven by the second driving member to swing synchronously in opposite directions around the hinge point, and the carton board is adjusted by toggling to correct the carton board to a position aligned with the conveyor belt. The two support plates limit the transmission of the carton board, and the carton board is in contact with the guide belt during correction and limiting guiding, which can not only reduce the contact friction, but also assist its transmission. The carton board is transmitted at a uniform, stable and smooth speed, thereby ensuring its subsequent printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of this application;

[0019] Figure 2 This is another perspective three-dimensional structure diagram of this application;

[0020] Figure 3 It is a sectional view of the three-dimensional structure of the present application;

[0021] Figure 4 It is another three-dimensional structural cross-sectional view of the present application;

[0022] Figure 5 It is a three-dimensional structural diagram of part of this application;

[0023] Figure 6 It is another three-dimensional structural diagram of this application;

[0024] Figure 7 This application Figure 3 Enlarged view of point A in the middle;

[0025] Figure 8 This application Figure 4 Enlarged view of point B in the middle;

[0026] Reference numerals: 1, frame; 2, transmission roller; 3, transmission belt; 4, limiting mechanism; 5, adjusting member; 6, pressing wheel; 7, connecting rod; 8, guide rod; 9, pressing belt; 10, door frame; 11, spray printing mechanism; 401, mounting frame; 402, support plate; 403, first rotating rod; 404, shaft rod; 405, movable plate; 406, second rotating rod; 407, guide belt; 408, first driving member; 409, second driving member; 4081, rotating shaft; 4082, driving bevel gear; 4083, driven bevel gear; 4084, pulley assembly; 4091, mounting plate; 4092, sliding rod; 4093, first support rod; 4094, driving motor; 4095, disc; 4096, second support rod; 501, fixing plate; 502, adjusting rod; 503, adjusting wheel; 504, limiting plate; 505, spring; 601, pressure column; 602, arc plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0028] like Figure 1-Figure 8 As shown, a limiting material guiding mechanism proposed in an embodiment of the present application includes a frame 1, two transmission rollers 2 respectively rotatably arranged at both ends of the frame 1, and a transmission belt 3 that is driven and wound around the two transmission rollers 2. Preferably, the end of one of the transmission rollers 2 is connected to a servo motor arranged on the frame 1. The servo motor works, and its output shaft drives the transmission roller 2 to rotate, thereby driving the transmission belt 3 to transmit. It also includes:

[0029] The limiting mechanism 4 includes a mounting frame 401 arranged on the frame 1, and support plates 402 are arranged on opposite sides of the inner wall of the mounting frame 401. A first rotating rod 403 is rotatably arranged at one end of the supporting plate 402, and an axle rod 404 is arranged at the other end. Preferably, the axle rod 404 rotates and passes through the supporting plate 402, and a movable plate 405 is hinged on the axle rod 404. A second rotating rod 406 is rotatably arranged at the free end of the movable plate 405. A guide belt 407 is transmitted and wound around the first rotating rod 403, the axle rod 404 and the second rotating rod 406. Preferably, a rubber sleeve is fixedly arranged on the first rotating rod 403, the second rotating rod 406 and the axle rod 404. The guide belt 407 is also made of rubber material. The guide belt 407 is transmitted and wound around three rubber sleeves. A first driving member 408 for driving the two first rotating rods 403 to rotate synchronously in the opposite direction is arranged on the frame 1. A second driving member 409 is provided on the frame 1, which is used to drive the two movable plates 405 to swing synchronously in opposite directions around the hinge point. When the carton is transmitted, the first driving member 408 drives the two first rotating rods 403 to rotate synchronously in opposite directions. When the first rotating rod 403 rotates, it drives the guide belt 407 to be transmitted. Therefore, the two guide belts 407 are transmitted synchronously in opposite directions. It should be noted that the support plate 402 is L-shaped, the first rotating rod 403 and the shaft rod 404 are respectively located at the vertical ends of the support plate 402, and the two guide belts 407 are located in a vertical section of the support plate 402 and are arranged in parallel. The spacing between the two guide belts 407 is equal to the width of the carton board. When the carton is placed on the conveyor belt 3, the carton will be transmitted to the area between the two movable plates 405, and the two movable plates 405 are driven by the second driving member 409 to swing synchronously in opposite directions around the hinge point. Figure 1 and Figure 2As shown, the two movable plates 405 are in an eight-shaped structure. When the two movable plates 405 swing in opposite directions and approach each other, they will adjust the carton board on the conveyor belt 3 (when the two movable plates 405 swing close to each other, after the movable plates 405 are at their maximum approach position, the vertical sections of the movable plates 405 and the support plates 402 remain in the same straight line), so that the carton board is corrected to a position aligned with the conveyor belt 3, so that the carton board enters between the two support plates 402, and the vertical sections of the two support plates 402 limit the transmission of the carton board. Since the guide belt 407 is wound around the support plate 402 and the movable plate 405, when the movable plate 405 moves the carton board to the position and the support plate 402 guides the carton board, the carton board contacts the guide belt 407, and the two guide belts 407 are in the transmission state and the two guide belts 407 are synchronously transmitted in the opposite direction. Therefore, the contact friction can be reduced and the transmission can be assisted, so that in the process of transmitting and guiding the carton board, the carton board is transmitted at a uniform speed, stable and smooth, thereby ensuring its subsequent printing effect;

[0030] Two adjusting members 5 are respectively arranged on both sides of the frame 1, and are used to adjust the tension of the two guide belts 407 respectively. Since the movable plate 405 will swing around the hinge point, the guide belt 407 will become loose during the swinging process. The tension of the guide belt 407 is adjusted by the arranged adjusting members 5, so that when the movable plate 405 swings, the guide belt 407 remains in a taut state, ensuring the stable transmission of the guide belt 407 and ensuring that the carton board maintains smooth transmission when guiding the carton board.

[0031] like Figure 1 and Figure 7 As shown, in some embodiments, the first driving member 408 includes a rotating shaft 4081 rotatably arranged on the mounting frame 401, and two transmission bevel gears 4082 are fixedly arranged on the rotating shaft 4081. The two first rotating rods 403 are fixedly provided with driven bevel gears 4083, and the two driven bevel gears 4083 are respectively meshed with the teeth of the two transmission bevel gears 4082. The rotating shaft 4081 and one of the transmission rollers 2 are connected with a pulley assembly 4084. When the rotating shaft 4081 rotates, the two transmission bevel gears 4082 are driven to rotate synchronously. The teeth of the bevel gear 4082 and the driven bevel gear 4083 are meshed to drive the two first rotating rods 403 to rotate synchronously. It should be noted that the two transmission bevel gears 4082 are arranged relative to each other. Therefore, the two first rotating rods 403 rotate synchronously in opposite directions. By connecting the pulley assembly 4084 between the rotating shaft 4081 and the transmission roller 2, under the linkage of the pulley assembly 4084, the transmission belt 3 and the guide belt 407 are transmitted synchronously, and the transmission speed is consistent, thereby avoiding transmission interference between the two, and further ensuring the smoothness of the carton board transmission.

[0032] like Figure 2 and Figure 6As shown, in some embodiments, the second driving member 409 includes a mounting plate 4091 arranged on the mounting frame 401, a sliding rod 4092 is slidably penetrated on the mounting plate 4091, the mounting plate 4091 is constructed as an L-shaped plate, the sliding rod 4092 slides through the vertical section of the mounting plate 4091, one end of the sliding rod 4092 is hinged to two first support rods 4093, and the free ends of the two first support rods 4093 are respectively hinged to the two movable plates 405, and a driving motor 4094 is arranged on the mounting plate 4091, and the driving motor 4094 is arranged in the horizontal section of the mounting plate 4091, and the output shaft of the driving motor 4094 is fixed with a disk 4095, the other end of the slide bar 4092 is hinged with a second support rod 4096, and the free end of the second support rod 4096 is eccentrically hinged to the disk 4095. The driving motor 4094 does work, and its output shaft drives the disk 4095 to rotate. Since the second support rod 4096 is eccentrically hinged to the disk 4095, when the disk 4095 rotates, it drives the slide bar 4092 to slide back and forth through the second support rod 4096. When the slide bar 4092 slides back and forth, it pulls or resists the two movable plates 405 respectively through the two first support rods 4093, thereby achieving the effect of driving the two movable plates 405 to swing synchronously in opposite directions around the hinge point.

[0033] like Figure 5 As shown, in some embodiments, the adjusting member 5 includes a fixed plate 501 arranged on the frame 1, an adjusting rod 502 is slidably arranged on the fixed plate 501, an adjusting wheel 503 is rotatably arranged on one end of the adjusting rod 502, a connecting block is arranged at the end of the adjusting rod 502, the adjusting wheel 503 is rotatably arranged on the connecting block, the guide belt 407 is transmission-wound around the adjusting wheel 503, a limiting plate 504 is fixedly arranged at the other end of the adjusting rod 502, and a spring 505 sleeved on the adjusting rod 502 is installed between the limiting plate 504 and the fixed plate 501, as shown in FIG. Figure 5 As shown, under the elastic force of the spring 505, the adjusting wheel 503 pulls the guide belt 407, so that the guide belt 407 is straightened. When the movable plate 405 swings around the hinge point, the elastic force of the spring 505 is used to perform adaptive adjustment, so that the guide belt 407 does not become loose, thereby ensuring the stability of its transmission.

[0034] like Figure 7 As shown, in some embodiments, a pressure wheel 6 is fixedly provided on the rotating shaft 4081. Preferably, a transition rod is provided on the frame 1. The transition rod and one of the transmission rollers 2 are fixedly provided with circular gears and the teeth of the two circular gears are meshed. The pulley assembly 4084 is connected to the rotating shaft 4081 and the transition rod. Through the provided transition rod, the rotating shaft 4081 still rotates synchronously driven by the transmission roller 2, but the rotation direction will be changed. The rotating shaft 4081 and the transmission roller 2 rotate synchronously in the opposite direction. Through the provided pressure wheel 6, the pressure wheel 6 will roll the carton board to make its surface smoother, thereby further improving the printing effect.

[0035] like Figure 8 As shown, in some embodiments, the pressure wheel 6 includes a pressure column 601 fixed on the rotating shaft 4081, and the outer surface of the pressure column 601 is provided with a plurality of arc plates 602 distributed in a circular array. Preferably, the pressure column 601 and the arc plate 602 are both made of rubber material. When rolling the carton board, the arc plate 602 first contacts the carton board, and the arc plate 602 is deformed and applies a transmission thrust to the carton board, so that the carton board can be more smoothly placed under the pressure wheel 6 when being transmitted on the conveyor belt 3, thereby improving the rolling effect thereof.

[0036] like Figure 2 and Figure 7 As shown, in some embodiments, two connecting rods 7 are provided on one side of the mounting frame 401, and guide rods 8 are rotatably provided at the free ends of the two connecting rods 7. Two pressing belts 9 are transmitted and wound between the guide rods 8 and the rotating shaft 4081. The two pressing belts 9 are respectively located at the two ends of the pressing wheel 6. When the rotating shaft 4081 rotates, the two pressing belts 9 are driven to transmit synchronously. After the carton board is rolled and flattened by the pressing wheel 6, the ends on both sides of the carton board are respectively placed under the two pressing belts 9. The pressing belts 9 press the ends of the carton board and cooperate with the conveyor belt 3 to transmit the carton board, so that the two ends of the carton board are in a pressed state during transmission, thereby ensuring its flatness and further improving the printing effect.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a carton printing machine proposed in one embodiment of the present application includes the above-mentioned limiting material guiding mechanism, and also includes a gantry 10 arranged on the frame 1, and the inner bottom wall of the gantry 10 is provided with a spray printing mechanism 11. Preferably, the spray printing mechanism 11 is located in the middle of the space above the two pressing belts 9. When the carton board is transmitted to the bottom of the spray printing mechanism 11, its two ends are pressed and held, and its printing surface is smoother, and the spray printing mechanism 11 prints on its surface.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A position-limiting material guiding mechanism, comprising a frame (1), two transmission rollers (2) rotatably arranged at two ends of the frame (1), and a transmission belt (3) wound around the two transmission rollers (2), characterized in that: Also includes: The limiting mechanism (4) comprises a mounting frame (401) arranged on a frame (1), support plates (402) are arranged on opposite sides of the inner wall of the mounting frame (401), a first rotating rod (403) is rotatably arranged at one end of the support plate (402), and a shaft rod (404) is arranged at the other end, a movable plate (405) is hinged on the shaft rod (404), a second rotating rod (406) is rotatably arranged at the free end of the movable plate (405), a guide belt (407) is arranged on the first rotating rod (403), the shaft rod (404) and the second rotating rod (406) for transmission, a first driving member (408) for driving the two first rotating rods (403) to rotate synchronously in opposite directions is arranged on the frame (1), and a second driving member (409) is arranged on the frame (1) for driving the two movable plates (405) to swing synchronously in opposite directions around the hinge point; Two adjustment members (5) are respectively arranged on two sides of the frame (1) and are used to respectively adjust the tension of the two guide belts (407).

2. The position limiting material guiding mechanism according to claim 1, characterized in that: The first driving member (408) comprises a rotating shaft (4081) rotatably mounted on a mounting frame (401); two transmission bevel gears (4082) are fixedly mounted on the rotating shaft (4081); driven bevel gears (4083) are fixedly mounted on the two first rotating rods (403); and the two driven bevel gears (4083) are respectively meshed with teeth of the two transmission bevel gears (4082); and a pulley assembly (4084) is connected between the rotating shaft (4081) and one of the transmission rollers (2).

3. The position limiting material guiding mechanism according to claim 1, characterized in that: The second driving member (409) comprises a mounting plate (4091) arranged on a mounting frame (401), a sliding rod (4092) slidingly passing through the mounting plate (4091), one end of the sliding rod (4092) being hinged to two first support rods (4093), the free ends of the two first support rods (4093) being respectively hinged to two movable plates (405), a driving motor (4094) being arranged on the mounting plate (4091), a circular disc (4095) being fixed to the output shaft of the driving motor (4094), a second support rod (4096) being hinged to the other end of the sliding rod (4092), and the free end of the second support rod (4096) being eccentrically hinged to the circular disc (4095).

4. The position limiting material guiding mechanism according to claim 1, characterized in that: The adjusting member (5) comprises a fixed plate (501) arranged on the frame (1); an adjusting rod (502) is slidably arranged on the fixed plate (501); an adjusting wheel (503) is rotatably arranged at one end of the adjusting rod (502); a guide belt (407) is transmission-wound around the adjusting wheel (503); a limiting plate (504) is fixedly arranged at the other end of the adjusting rod (502); and a spring (505) sleeved on the adjusting rod (502) is installed between the limiting plate (504) and the fixed plate (501).

5. The position limiting material guiding mechanism according to claim 2, characterized in that: A pressure wheel (6) is fixedly provided on the rotating shaft (4081).

6. The position limiting material guiding mechanism according to claim 5, characterized in that: The pressing wheel (6) comprises a pressing column (601) fixedly mounted on a rotating shaft (4081), and the outer surface of the pressing column (601) is provided with a plurality of arc-shaped plates (602) distributed in a ring array.

7. The position limiting material guiding mechanism according to claim 5, characterized in that: Two connecting rods (7) are arranged on one side of the mounting frame (401), and guide rods (8) are rotatably arranged at the free ends of the two connecting rods (7). Two pressing belts (9) are arranged to be driven and wound between the guide rods (8) and the rotating shaft (4081), and the two pressing belts (9) are respectively located at two ends of the pressing wheel (6).

8. Carton printing machine, characterized in that, It comprises the position limiting material guiding mechanism as claimed in any one of claims 1 to 7, and further comprises a portal frame (10) arranged on the frame (1), wherein the inner bottom wall of the portal frame (10) is provided with a spray printing mechanism (11).

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