Double-layer transition frame with power traction function

Abstract

The utility model discloses a double-layer transition frame with power traction, which comprises a double-layer transition frame body, a paperboard traction mechanism is arranged at the inlet end of the double-layer transition frame body, and the paperboard traction mechanism provides traction power for paperboards. The double-layer transition frame belongs to a mechanism located between a slitting machine and a transverse cutting machine in a corrugated board production line, and the paperboard traction mechanism is arranged at the inlet end of the double-layer transition frame, so that paperboards longitudinally cut by the slitting machine still have traction power, the paperboards can be in a tensioned state, the jumping amplitude is reduced, and the production efficiency is improved. And a visual sensor of the slitting machine can conveniently and better detect the position of the slitting marking line on the paperboard surface paper, so that the slitting precision is improved.

Description

Technical Field

[0001] The utility model relates to a corrugated paperboard production device, in particular to a double-layer transition frame with power traction. Background Art

[0002] When slitting corrugated cardboard with pre-printed surface paper layer, it needs to be cut longitudinally according to the longitudinal cutting mark on the pre-printed surface paper layer. Therefore, the slitting machine is equipped with a visual sensor to track the position of the mark. Since the slitting cardboard passes through the double-layer transition frame and enters the upper and lower cross-cutting knife groups of the double-layer cross-cutting machine for cross-cutting respectively, it can be seen that after the slitting machine, the cardboard has no traction power, resulting in the cardboard being unable to be tensioned, and the cardboard shaking seriously, which increases the difficulty of the slitting machine to track the mark.

[0003] See also Figure 8 As shown, after the cardboard 30 is cut into two pieces of cardboard 301 and 302 by the longitudinal cutting machine 10, it enters the double-layer transition frame body 8, and then enters the double-layer cross-cutting machine (not shown in the figure) to cut the two pieces of cardboard 301 and 302 transversely to form small pieces of cardboard. A paper pressing mechanism 40 is provided above the input end of the double-layer transition frame body 8. The paper pressing mechanism is a flexible pressing plate or a brush, which reduces the frequency of its up and down jumping by applying pressure to the cardboard; however, because the input end of the longitudinal cutting machine is preceded by a double-face machine that presses the cardboard into shape and has power, and there is almost no traction power behind the double-face machine, so the cardboard is close to the double-layer cross-cutting machine and is in a relaxed state. Only the paper pressing mechanism applies pressure to the cardboard. The greater the pressure, the greater the power loss of the cardboard conveying, which affects the speed-up of the corrugated cardboard production line, but the effect of preventing the cardboard from jumping will also be weakened if the pressure is small. Utility Model Content

[0004] The utility model aims to provide a double-layer transition frame with power traction which has a reasonable structure and can pull the cardboard behind the slitting machine so that the cardboard has a certain tension, reduces the shaking of the cardboard, and facilitates the marking line identifier on the slitting machine to capture the position of the slitting marking line on the cardboard.

[0005] The purpose of the utility model is achieved in this way:

[0006] A double-layer transition frame with power traction comprises a double-layer transition frame body. The inlet end of the double-layer transition frame body is provided with a paperboard traction mechanism, which provides traction power for the paperboard.

[0007] The purpose of the utility model can also be solved by the following technical measures:

[0008] As a more specific solution, the cardboard traction mechanism includes a frame and a motor, a power roller and a paper pressing roller arranged on the frame. The motor is transmission-connected to the power roller. The paper pressing roller and the power roller are distributed up and down, and a paper guiding channel is formed between the paper pressing roller and the power roller.

[0009] As a further solution, the paper pressing roller is connected to the machine frame through a rocker arm. One end of the rocker arm is rotatably connected to the machine frame, and the other end of the rocker arm is connected to the paper pressing roller. A swing drive cylinder for controlling the up and down swing of the rocker arm is further provided between the rocker arm and the machine frame.

[0010] As a further solution, a plurality of rollers are axially arranged on the paper pressing roller, and a rubber sleeve is sleeved outside the power roller.

[0011] As a further solution, a paper feeding base is further provided on one side of the machine frame facing away from the double-layer transition frame body.

[0012] As a further solution, the central axes of the power roller and the paper pressing roller are staggered back and forth with each other.

[0013] As a further solution, the machine frame is provided with the rocker arms corresponding to both ends of the paper pressing roller, and the two rocker arms are further connected by a synchronous roller; swing drive cylinders are respectively provided on both sides of the machine frame, and the cylinder body and the outer end of the piston rod of the swing drive cylinder are respectively hinged to the machine frame and the rocker arm.

[0014] As a further solution, the double-layer transition frame body includes a support frame and an upper fixed transition layer and a lower fixed transition layer which are distributed up and down on the support frame.

[0015] As a further solution, a movable transition layer is further provided on the support frame. The movable transition layer includes a plurality of transition bridges distributed along the width direction of the double-layer transition frame body. The front end of the transition bridge is rotationally matched with one end of the support frame facing the cardboard traction mechanism. The bottom of the transition bridge is connected to the support frame through a lifting drive cylinder, and the lifting drive cylinder controls the rear end of the transition bridge to selectively communicate with the upper fixed transition layer and the lower fixed transition layer.

[0016] As a further solution, a cross shaft is provided at one end of the support frame facing the cardboard traction mechanism, and the front end of the transition bridge is rotationally matched with the cross shaft; a secondary bracket is further provided on the support frame, and the cylinder body and the outer end of the piston rod of the lifting drive cylinder are respectively hinged to the secondary bracket and the transition bridge.

[0017] The beneficial effects of the present utility model are as follows:

[0018] (1) This double-layer transition frame belongs to the mechanism between the longitudinal cutting machine and the cross cutting machine in the corrugated cardboard production line. A cardboard traction mechanism is arranged at its inlet end, which can enable the cardboard longitudinally cut by the longitudinal cutting machine to still have the traction power, keep the cardboard in a tensioned state, reduce the jumping amplitude, and facilitate the visual sensor of the longitudinal cutting machine to better detect the position of the longitudinal cutting marking line on the cardboard surface paper, thereby improving the longitudinal cutting accuracy.

[0019] (2) The cardboard traction mechanism of this double-layer transition frame includes a power roller and a paper pressing roller. The central axes of the power roller and the paper pressing roller are staggered front and back. When the paper pressing roller is pressed down, the cardboard and the power roller form a slight wrap angle, which can increase the traction force without causing damage to the cardboard; and improve its tensioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure after one embodiment of the utility model is matched with a longitudinal cutting machine.

[0021] Figure 2 It is a structural schematic diagram of the pressing state of the paper pressing roller of the paperboard traction mechanism in the utility model.

[0022] Figure 3 It is a structural schematic diagram of the paper pressing roller of the paperboard traction mechanism of the utility model in the lifted state.

[0023] Figure 4 It is a schematic diagram of the structure after the double-layer transition frame body and the paperboard traction mechanism are combined in the utility model.

[0024] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0025] Figure 6 for Figure 4 Enlarged structural diagram at B in the middle.

[0026] Figure 7 for Figure 4 Schematic diagram of the structure from another angle.

[0027] Figure 8 It is a schematic diagram of the prior art structure. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0029] See also Figures 1 to 7 As shown, a double-layer transition frame with power traction includes a double-layer transition frame body 8. The inlet end of the double-layer transition frame body 8 is provided with a cardboard traction mechanism 20, and the cardboard traction mechanism 20 provides traction power for the cardboard.

[0030] The paperboard traction mechanism 20 includes a frame 203 and a motor 11, a power roller 1 and a paper pressing roller 2 arranged on the frame 203. The motor 11 is connected to the power roller 1 in a transmission manner. The paper pressing roller 2 and the power roller 1 are distributed up and down, and a paper guiding channel is formed between the paper pressing roller 2 and the power roller 1.

[0031] The paper pressing roller 2 is connected to the machine frame 203 through a rocker arm 3. One end of the rocker arm 3 is rotatably connected to the machine frame 203, and the other end of the rocker arm 3 is connected to the paper pressing roller 2. A swing drive cylinder 9 for controlling the up and down swing of the rocker arm 3 (as shown by the α arrow in Figure 2 ) is also provided between the rocker arm 3 and the machine frame 203.

[0032] A plurality of rollers are axially arranged on the paper pressing roller 2, and a rubber sleeve is sleeved outside the power roller 1. A certain adhesion force is formed between the rubber sleeve of the power roller 1 and the cardboard to transmit power to the cardboard. Each roller on the paper pressing roller 2 rotates respectively, reducing the friction with the cardboard. At the same time, since the output angles of the two cardboards are different, the acting forces exerted by the cardboard on the rollers are also different. Each cardboard rolls in cooperation with the corresponding roller, avoiding mutual interference and preventing damage to the cardboard.

[0033] A paper feeding bearing platform 201 is further provided on one side of the machine frame 203 facing away from the double-layer transition frame body 8.

[0034] The central axes of the power roller 1 and the paper pressing roller 2 are staggered back and forth. When the paper pressing roller 2 presses down, a wrap angle is slightly formed between the cardboard and the power roller 1, which can increase the traction force and will not cause damage to the cardboard at the same time.

[0035] Vertical plates 4 are provided at both ends of the machine frame 203 corresponding to the paper pressing roller 2. The rocker arms 3 are respectively rotatably provided on the two vertical plates 4, and the two rocker arms 3 are also connected by a synchronous roller 31; swing drive cylinders 9 are respectively provided on both sides of the machine frame 203, and the cylinder body and the outer end of the piston rod of the swing drive cylinder 9 are respectively hinged to the machine frame 203 and the rocker arm 3.

[0036] The double-layer transition frame body 8 includes a support frame 81 and an upper fixed transition layer 83 and a lower fixed transition layer 82 which are distributed up and down on the support frame 81.

[0037] An active transition layer is further provided on the support frame 81. The active transition layer includes a plurality of transition bridges 5 distributed along the width direction of the double-layer transition frame body 8. The front end of the transition bridge 5 is rotatably matched with one end of the support frame 81 facing the cardboard traction mechanism 20. The bottom of the transition bridge 5 is connected to the support frame 81 through a lifting drive cylinder 7, and the lifting drive cylinder 7 controls the rear end of the transition bridge 5 to selectively communicate with the upper fixed transition layer 83 and the lower fixed transition layer 82.

[0038] A horizontal shaft 6 is provided at one end of the support frame 81 facing the cardboard traction mechanism 20. The front end of the transition bridge 5 is rotatably matched with the horizontal shaft 6; a secondary bracket 84 is further provided on the support frame 81, and the cylinder body and the outer end of the piston rod of the lifting drive cylinder 7 are respectively hinged to the secondary bracket 84 and the transition bridge 5.

[0039] Its working principle is: Refer to Figure 1As shown, the cardboard 30 enters the longitudinal cutting machine 10 and is longitudinally cut along the direction of the F arrow. Then, the two pieces of cardboard 301 and 302 enter the paper feeding channel of the cardboard traction mechanism 20. Under the pressure of the paper pressing roller 2, the two pieces of cardboard between the cardboard traction mechanism 20 and the longitudinal cutting machine 10 are prevented from being displaced vertically, and the two pieces of cardboard are kept in a straightened state to avoid vertical bouncing. Thus, the visual sensor on the longitudinal cutting machine 10 can better detect the position of the longitudinal cutting marks on the cardboard surface paper, thereby improving the longitudinal cutting accuracy. The two pieces of cardboard are separated vertically by the double-layer transition frame body 8 after passing through the cardboard traction mechanism 20 and then enter a double-layer cross-cutting machine (not shown in the figure). According to the respective widths of the two pieces of cardboard, the transition bridge 5 within the corresponding width range is adjusted to rise and fall to guide the two pieces of cardboard into the upper fixed transition layer 83 and the lower fixed transition layer 82 respectively.

[0040] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A double-layer transition frame with power traction, comprising a double-layer transition frame body (8), characterized in that: A paperboard traction mechanism (20) is provided at the inlet end of the double-layer transition frame body (8), and the paperboard traction mechanism (20) provides traction power for the paperboard.

2. The double-layer transition frame with power traction according to claim 1 is characterized in that: The paperboard traction mechanism (20) comprises a frame (203), a motor (11), a power roller (1) and a paper pressing roller (2) arranged on the frame (203), the motor (11) being in driving connection with the power roller (1), the paper pressing roller (2) and the power roller (1) being arranged vertically, and a paper guiding channel being formed between the paper pressing roller (2) and the power roller (1).

3. The double-layer transition frame with power traction according to claim 2 is characterized in that: The paper pressing roller (2) is connected to the frame (203) via a rocker arm (3); one end of the rocker arm (3) is rotatably connected to the frame (203); the other end of the rocker arm (3) is connected to the paper pressing roller (2); and a rocking drive cylinder (9) for controlling the rocker arm (3) to swing up and down is provided between the rocker arm (3) and the frame (203).

4. The double-layer transition frame with power traction according to claim 2 is characterized in that: The paper pressing roller (2) has a plurality of rollers arranged axially thereon, and the outer cover of the power roller (1) is provided with a rubber sleeve.

5. The double-layer transition frame with power traction according to claim 2 is characterized in that: A paper feeding platform (201) is also provided on the side of the frame (203) facing away from the double-layer transition frame body (8).

6. The double-layer transition frame with power traction according to claim 2 is characterized in that: The central axes of the power roller (1) and the paper pressing roller (2) are staggered front and back.

7. The double-layer transition frame with power traction according to claim 3 is characterized in that: The frame (203) is provided with the rocker arms (3) at both ends corresponding to the paper pressing roller (2), and the two rocker arms (3) are connected via a synchronous roller (31); the rocking drive cylinder (9) is provided on both sides of the frame (203), and the cylinder body and the outer end of the piston rod of the rocking drive cylinder (9) are respectively hinged to the frame (203) and the rocker arms (3).

8. The double-layer transition frame with power traction according to any one of claims 1 to 7, characterized in that: The double-layer transition frame body (8) comprises a support frame (81) and an upper fixed transition layer (83) and a lower fixed transition layer (82) distributed vertically on the support frame (81).

9. The double-layer transition frame with power traction according to claim 8, characterized in that: The support frame (81) is also provided with a movable transition layer, which comprises a plurality of transition bridges (5) distributed along the width direction of the double-layer transition frame body (8), the front end of the transition bridge (5) is rotatably matched with one end of the support frame (81) toward the paperboard traction mechanism (20), the bottom of the transition bridge (5) is connected to the support frame (81) via a lifting drive cylinder (7), and the lifting drive cylinder (7) controls the rear end of the transition bridge (5) to selectively communicate with the upper fixed transition layer (83) and the lower fixed transition layer (82).

10. The double-layer transition frame with power traction according to claim 9, characterized in that: A transverse shaft (6) is provided at one end of the support frame (81) facing the paperboard traction mechanism (20), and the front end of the transition bridge (5) is rotatably matched with the transverse shaft (6); a secondary bracket (84) is also provided on the support frame (81), and the cylinder body and the outer end of the piston rod of the lifting drive cylinder (7) are respectively hinged to the secondary bracket (84) and the transition bridge (5).

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