A paper feeding mechanism for improving the surface quality of a carton

Abstract

The utility model relates to a paper feeding mechanism that improves the surface quality of a carton, which is arranged above the plane of the conveying belt of a downstream mechanism, at the rear side of the input mechanism of the downstream mechanism, and aligned with the central axis. The paper feeding mechanism comprises: a lower suspension arm on which a lower friction belt is sleeved; an upper suspension wall on which an upper friction belt is sleeved; a blocking roller arranged at the front side of the lower suspension arm, which is used to adjust the suspension arm and the upper suspension wall; the lower friction belt cooperates with the upper friction belt; the vertical plane that passes through the central axis and on which the turning roller at the front of the lower friction belt is arranged is defined as a first vertical plane, and the vertical plane that passes through the central axis and on which the turning roller at the front of the upper friction belt is arranged is defined as a second vertical plane; the conveying direction of the lower friction belt is the forward direction, and the first vertical plane is in front of the second vertical plane.

Description

Technical Field

[0001] This utility model relates to the field of paper box printing and gluing, specifically to a paper feeding mechanism for improving the surface quality of paper boxes. Background Technology

[0002] Before becoming a finished product, a cardboard box generally undergoes printing, cutting, and gluing. Depending on the box's shape, additional operations may be involved. After cutting and before gluing, all processing machines need a paper feeding mechanism to replace manual feeding. Some cardboard boxes have specific surface treatments required during production. Using older paper feeding mechanisms, the paper cutting pieces are often positioned with the upper side facing forward at the exit. This arrangement makes it easy for the paper cutting pieces to accidentally come into contact with the friction strip of the feeding mechanism, essentially due to poor positioning of the old-style mechanism. To reduce this accidental contact, the friction strip's position needs to be designed and adjusted. Summary of the Invention

[0003] This invention addresses the problem in existing paper feeding mechanisms where the friction belt accidentally comes into contact with the paper box pieces, causing the friction belt surface to rub against the surface-treated paper box pieces, resulting in unsatisfactory paper box quality and affecting the overall box quality. A new paper feeding mechanism is designed to improve the surface quality of the paper boxes. This mechanism is positioned above the conveyor belt plane of the downstream mechanism, behind the input mechanism of the downstream mechanism, and aligned with the central axis. The paper feeding mechanism includes: a lower suspension arm, which is fixed above the conveyor belt plane of the downstream mechanism via a frame, and a lower friction belt is sleeved on the lower suspension arm; The upper suspension wall is fixed above the lower suspension arm by the frame, and an upper friction strip is fitted on the upper suspension wall; The barrier roller is located on the front side of the lower suspension arm, above the conveyor belt plane of the downstream mechanism. The cantilever is fixed to the upper suspension wall by adjusting the barrier roller. The lower friction belt cooperates with the upper friction belt; the vertical plane of the steering roller in front of the lower friction belt, which passes through the center axis, is set as the first vertical plane, and the vertical plane of the steering roller in front of the upper friction belt, which passes through the center axis, is set as the second vertical plane. Then, the conveying direction of the lower friction belt is the forward direction, and the first vertical plane is in front of the second vertical plane.

[0004] Preferably, the lower cantilever arm includes: a first arm section, which is fixedly connected to an external frame and hinged to a second arm section; the second arm section is provided with two rectangular grooves for setting a first roller, and a guide bearing for the lower friction belt is sleeved on the first roller; The upper suspended wall includes a third arm section, which is fixedly connected to the external frame, and a fourth arm section is hinged to the side wall at the end; The fourth arm section is claw-shaped, with the claw tip pointing towards the conveyor belt plane of the downstream mechanism. A second roller is installed on the side wall of the claw tip, and a guide bearing for the upper friction belt is sleeved on the second roller.

[0005] Preferably, the barrier roller adjusting cantilever is provided with an elongated hole, and an adjusting nut is provided on the side of the fourth arm section. The adjusting nut passes through the elongated hole to detachably connect the barrier roller adjusting cantilever to the fourth arm section. A third roller is provided on the lower end side wall of the barrier roller adjusting cantilever, and a barrier roller is sleeved on the third roller. The cylindrical surface of the barrier roller is smooth.

[0006] Preferably, the lower suspension arm, upper suspension wall, barrier roller, and barrier roller adjusting cantilever all consist of two parts, left and right, which are mirror-symmetrical about the vertical plane containing the central axis.

[0007] Preferably, an auxiliary support is provided above the conveyor belt plane of the downstream mechanism, and a fifth cantilever is provided on the auxiliary support. The fifth cantilever is made of a round rod, and a fourth roller is radially fixed on its lower side. The axis of the fourth roller is parallel to the axis of the first roller. The fourth roller is fitted with a second roller; the diameter of the second roller is larger than the diameter of the barrier roller. The fifth cantilever consists of two parts, left and right, which are mirror-symmetrical about the vertical plane containing the central axis; the interval between the second roller on the left and the second roller on the right is set as distance a, and the interval between the left and right blocking rollers adjusting the cantilever is set as distance b, then a>b; Preferably, the vertical plane containing the center axis of the second roller is the same plane as the vertical plane containing the center axis of the barrier roller. The second roller, suspended by the fifth cantilever, is mainly for paper box pieces with a larger width. It can limit the two sides of the paper box piece from above. Since both the barrier roller and the second roller are rollers without active power and with smooth roller surfaces, neither of these rollers will affect the quality of the paper box piece.

[0008] The paper feeding mechanism of this application adopts an active upper friction belt as the main design. When the paper box pieces are processed sequentially from the upstream equipment and input into the inlet side of this mechanism, the lower friction belt cooperates with the upper friction belt to carry the paper box pieces from the inlet side to the outlet side by friction. The outlet side is the main modification point of this application.

[0009] The upper suspension wall is positioned at the rear, and the lower suspension arm is positioned at the front. This reduces the contact between the upper suspension wall and the paper box pieces that have already been output from the paper feeding mechanism. At the same time, a blocking roller is set in front of the lower suspension arm. This allows the paper box pieces to maintain an inclined state and also prevents the paper box pieces from coming into contact with the lower friction belt on the lower suspension arm, which could lead to the paper box pieces being accidentally rubbed by the friction belt. Attached Figure Description

[0010] Figure 1 Side view assembly diagram of the device of this utility model; Figure 2 Assembly diagram of the device from an axial side view of this utility model; Figure 3 Diagram showing the relative positions of the rollers in this utility model; In the diagram: a) Paper box cut piece; 100) Downstream mechanism; 101) Conveyor belt plane; 201) First arm segment; 202) Second arm segment; 203) First part of the first roller; 2031) Guide bearing of the lower friction belt; 204) Lower friction belt; 205) Upper friction belt; 206) Third arm segment; 207) Fourth arm segment; 208) Barrier roller adjusting cantilever; 209) Guide bearing of the upper friction belt; 210) Barrier roller; 300) Auxiliary support; 301) Fifth cantilever; 302) Second roller. Detailed Implementation

[0011] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example

[0012] like Figure 1 and Figure 2 As shown, the paper feeding mechanism for improving the surface quality of the paper box is located above the conveyor belt plane 101 of the downstream mechanism 100, behind the input mechanism of the downstream mechanism, and aligned with the central axis. The paper feeding mechanism includes: a lower suspension arm, which is fixed above the conveyor belt plane of the downstream mechanism via a frame, and a lower friction belt 204 is sleeved on the lower suspension arm; The upper suspension wall is fixed above the lower suspension arm by the frame, and the upper friction belt 205 is fitted on the upper suspension wall; The barrier roller 210 is located on the front side of the lower suspension arm, above the conveyor belt plane of the downstream mechanism, and is fixed to the upper suspension wall by adjusting the cantilever 208 through the barrier roller. The lower friction belt cooperates with the upper friction belt; the vertical plane of the steering roller in front of the lower friction belt, which passes through the center axis, is set as the first vertical plane, and the vertical plane of the steering roller in front of the upper friction belt, which passes through the center axis, is set as the second vertical plane. Then, the conveying direction of the lower friction belt is the forward direction, and the first vertical plane is in front of the second vertical plane.

[0013] The lower suspension arm includes: a first arm section 201, which is fixedly connected to an external frame and hinged to a second arm section 202; the second arm section is provided with two rectangular slots for setting the mounting block of the first roller. The first roller is divided into left and right parts, which are coaxial. However, the first part 203 is a rectangular block and the second part is a roller. The first part is fixed in the rectangular slot of the second arm section, and a guide bearing 2031 for the lower friction belt is sleeved on the second part.

[0014] The upper suspended wall includes a third arm section 206, which is fixedly connected to the external frame, and a fourth arm section 207 is hinged to the side wall at the end. The fourth arm section is claw-shaped, with the claw tip pointing towards the conveyor belt plane of the downstream mechanism. A second roller is provided on the side wall of the claw tip, and a guide bearing 209 for the upper friction belt is sleeved on the second roller.

[0015] The barrier roller adjusting cantilever has an elongated hole, and an adjusting nut is provided on the side of the fourth arm section. The adjusting nut passes through the elongated hole to detachably connect the barrier roller adjusting cantilever to the fourth arm section. A third roller is provided on the lower end side wall of the barrier roller adjusting cantilever, and a barrier roller is sleeved on the third roller. The cylindrical surface of the barrier roller is smooth.

[0016] The lower suspension arm, upper suspension wall, barrier roller, and barrier roller adjusting cantilever each consist of two parts, left and right, which are mirror-symmetrical about the vertical plane containing the central axis.

[0017] like Figure 1 and Figure 3 An auxiliary support 300 is provided above the conveyor belt plane 101 of the downstream mechanism shown, and a fifth cantilever 301 is provided on the auxiliary support; a detachable fixing block is used between the auxiliary support 300 and the fifth cantilever 301, and the fixing block is provided with two through holes, one of which is fixed to the auxiliary support, and the other is used to fix the fifth cantilever.

[0018] The fifth cantilever uses a round rod, with a fourth roller fixed radially on its lower side. The axis of the fourth roller is parallel to the axis of the first roller. The fourth roller is fitted with a second roller 302; the diameter of the second roller is larger than the diameter of the barrier roller. The fifth cantilever consists of two parts, left and right, which are mirror-symmetrical about the vertical plane containing the central axis; the interval between the second roller on the left and the second roller on the right is set as distance a, and the interval between the left and right blocking rollers adjusting the cantilever is set as distance b, then a>b; The vertical plane containing the central axis of the second roller 302 is the same as the vertical plane containing the central axis of the barrier roller. The second roller 302, which is suspended by the fifth cantilever, is mainly for paper box pieces with a larger width. It can limit the two sides of the paper box piece from the top. Since both the barrier roller and the second roller are rollers without active power and with smooth roller surfaces, neither of these rollers will affect the quality of the paper box piece a.

[0019] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A paper feeding mechanism for improving the surface quality of cardboard boxes, characterized in that, It is positioned above the conveyor belt plane of the downstream mechanism, behind the input mechanism of the downstream mechanism, and aligned with the center axis; The paper feeding mechanism includes: a lower suspension arm, which is fixed above the conveyor belt plane of the downstream mechanism via a frame, and a lower friction belt is sleeved on the lower suspension arm; The upper suspension wall is fixed above the lower suspension arm by the frame, and an upper friction strip is fitted on the upper suspension wall; The barrier roller is located on the front side of the lower suspension arm, above the conveyor belt plane of the downstream mechanism. The cantilever is fixed to the upper suspension wall by adjusting the barrier roller. The lower friction belt cooperates with the upper friction belt; the vertical plane of the steering roller in front of the lower friction belt, which passes through the center axis, is set as the first vertical plane, and the vertical plane of the steering roller in front of the upper friction belt, which passes through the center axis, is set as the second vertical plane. Then, the conveying direction of the lower friction belt is the forward direction, and the first vertical plane is in front of the second vertical plane.

2. The paper feeding mechanism for improving the surface quality of a carton according to claim 1, wherein The lower suspension arm includes: a first arm section, which is fixedly connected to an external frame and hinged to a second arm section; the second arm section is provided with two rectangular slots for setting a first roller, and a guide bearing for the lower friction belt is sleeved on the first roller; The upper suspended wall includes a third arm section, which is fixedly connected to the external frame, and a fourth arm section is hinged to the side wall at the end; The fourth arm section is claw-shaped, with the claw tip pointing towards the conveyor belt plane of the downstream mechanism. A second roller is installed on the side wall of the claw tip, and a guide bearing for the upper friction belt is sleeved on the second roller.

3. The paper feeding mechanism for improving the surface quality of a carton according to claim 2, wherein The barrier roller adjusting cantilever has an elongated hole, and an adjusting nut is provided on the side of the fourth arm section. The adjusting nut passes through the elongated hole to detachably connect the barrier roller adjusting cantilever to the fourth arm section. A third roller is provided on the lower end side wall of the barrier roller adjusting cantilever, and a barrier roller is sleeved on the third roller. The cylindrical surface of the barrier roller is smooth.

4. The paper feeding mechanism for improving the surface quality of a carton according to claim 1 or 2, wherein The lower suspension arm, upper suspension wall, barrier roller, and barrier roller adjusting cantilever all consist of two parts, left and right, which are mirror-symmetrical about the vertical plane containing the central axis.

5. The paper feeding mechanism for improving the surface quality of a carton according to claim 4, wherein An auxiliary support is provided above the conveyor belt plane of the downstream mechanism. A fifth cantilever is provided on the auxiliary support. The fifth cantilever is made of a round rod, and a fourth roller is radially fixed on its lower side. The axis of the fourth roller is parallel to the axis of the first roller. The fourth roller is fitted with a second roller; the diameter of the second roller is larger than the diameter of the barrier roller. The fifth cantilever consists of two parts, left and right, which are mirror-symmetrical about the vertical plane containing the central axis. The interval between the second roller on the left and the second roller on the right is set as spacing a, and the interval between the left and right blocking rollers adjusting the cantilever is set as spacing b, then a>b.

6. The paper feeding mechanism for improving the surface quality of a carton according to claim 5, wherein The vertical plane containing the centerline of the second roller is the same as the vertical plane containing the centerline of the barrier roller.

Images