Paper feeding adjusting device of paper feeding machine

Abstract

The utility model discloses a paper feeding adjusting device of a paper feeding machine. Comprising a rack, a paper feeding space formed in the rack, a lifting table located in the paper feeding space, a lifting mechanism driving the lifting table to move, a conveying rail installed on the lifting table, a conveying trolley located above the conveying rail and a jacking mechanism arranged on the lifting table and used for jacking the conveying trolley. A sliding structure allowing the conveying trolley to move in the horizontal direction is arranged above the jacking mechanism, the lifting mechanism has a working state and a non-working state, when the lifting mechanism is in the working state, horizontal movement of the conveying trolley in the lifting state is limited through a locking mechanism, and when the lifting mechanism is in the non-working state, horizontal movement of the conveying trolley in the lifting state is limited through a locking mechanism. And the locking mechanism is in an unlocking state. The lifting mechanism has the advantages that the production cost is low, the structure is lighter, the overload loss of the lifting mechanism is reduced, and the service life of the lifting mechanism is prolonged.

Description

Technical Field

[0001] The utility model relates to a paper feeder, in particular to a paper feeding regulating device of the paper feeder. Background Art

[0002] Sheet feeders are widely used in sheet-fed printing machinery and equipment such as screen printing machines, gravure printing machines, fully automatic die-cutting machines, and paper laminating machines. A paper stacking platform for placing paper piles is set at the entrance section, and the paper is separated and fed into the paper feeder platform in sequence through the feeder head. As the paper is continuously output, the paper pile monitoring system of the paper feeder increases the paper pile height at any time to ensure uninterrupted paper feeding.

[0003] The paper loading adjustment device of an existing paper feeder includes a frame, a paper loading space formed on the frame, a lifting platform located in the paper loading space, a lifting mechanism that drives the lifting platform to move up and down, a transmission track installed on the lifting platform and for the transport trolley to transmit, a lifting mechanism provided on the lifting platform for lifting the transport trolley, and a positioning mechanism provided on the lifting platform for aligning the transport trolley. The existing positioning mechanism has a complex structure and high production cost. In addition, the existing positioning mechanism will greatly increase the load of the lifting platform, causing the lifting mechanism to easily cause excessive wear during use, thereby greatly reducing the service life of the lifting mechanism. In response to the above problems, the present improvement was conceived. Utility Model Content

[0004] The purpose of the utility model is to provide a paper feeding regulating device for a paper feeder, which has low production cost and a lighter structure, thereby reducing overload loss of a lifting mechanism and extending its service life.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: A paper feeding adjustment device for a paper feeder, comprising a frame, a paper feeding space formed on the frame, a lifting platform located in the paper feeding space, a lifting mechanism for driving the lifting platform to move, a transmission rail installed on the lifting platform, a transport trolley located above the transmission rail, and a lifting mechanism arranged on the lifting platform for lifting the transport trolley, a sliding structure for the transport trolley to move in a horizontal direction is provided above the lifting mechanism, the lifting mechanism has a working state and a non-working state, when the lifting mechanism is in the working state, the transport trolley in the lifted state is limited to horizontal movement by a locking mechanism, when the lifting mechanism is in the non-working state, the locking mechanism is in an unlocked state.

[0006] By adopting the above technical solution, the paper stack is placed on the transport trolley, and the transport trolley and the paper stack are transported into the paper loading space together with the transport track and positioned above the lifting platform. The jacking mechanism is then used to lift the transport trolley to separate it from the transmission track, and then the sliding structure is used to push the transport trolley to adjust the position of the paper stack. The lifting mechanism then works to stretch the lifting platform while limiting the horizontal movement of the transport trolley through the locking mechanism, thereby locking the rising transport trolley and ensuring the safety and stability of subsequent paper loading. The linkage setting eliminates the use of the positioning mechanism, thereby reducing the production cost of the device and making the structure more lightweight, while reducing the overload loss of the lifting mechanism and extending its service life.

[0007] It is further configured as follows: the sliding structure is a plurality of supporting rollers rotatably arranged on the top of the lifting mechanism, and the plurality of supporting rollers are horizontally arranged along a length direction perpendicular to the transmission track and the axes of the supporting rollers are parallel to the length direction of the transmission track.

[0008] By adopting the above technical solution, the support rollers enable rolling cooperation between the transport trolley and the lifting mechanism, reducing frictional resistance and making it easier for manual propulsion of the transport trolley for horizontal movement. Furthermore, the support rollers can also guide the direction of movement, thereby better achieving horizontal linear motion of the transport trolley.

[0009] It is further configured as follows: the lifting mechanism includes a connecting piece connected to the lifting platform, the lifting mechanism switches between a working state and a non-working state to give the connecting piece a first position and a second position, the locking mechanism includes a locking block arranged on the transport trolley and a locking assembly formed between the locking block and the connecting piece, and when the connecting piece is in the first position or the second position, the locking assembly and the locking block form a lock.

[0010] By adopting the above technical solution, the lifting mechanism switches between the working state and the non-working state, giving the connecting member a first position and a second position, thereby realizing the switching of the locking component between the locked state and the unlocked state.

[0011] It is further configured as follows: the locking assembly includes a plurality of locking teeth distributed on the side of the locking block facing the connecting piece and a plurality of locking holes distributed on the side of the connecting piece facing the locking teeth, and the locking teeth and locking holes are arranged and distributed along a horizontal movement direction parallel to the transport trolley.

[0012] By adopting the above technical solution, the locking tooth is inserted into the locking hole to limit the horizontal movement of the transport trolley, thereby achieving the locking purpose; when the locking tooth is separated from the locking hole, the lock on the transport trolley is released, allowing the transport trolley to achieve horizontal movement.

[0013] It is further configured as follows: the lifting mechanism includes a plurality of lifting sprockets rotatably arranged on the frame, a plurality of lifting chains passing around the lifting sprockets and connected to the lifting platform, and a driving member driving the lifting sprockets to rotate, wherein two of the lifting chains pass through the lifting holes of the lifting platform and are connected to both ends of the connecting member.

[0014] By adopting this technical solution, a lifting chain passes through the lifting platform and connects to both ends of the connector, giving the connector a relaxed state (hanging down) and a tightened state (lifting up), thereby allowing the locking assembly to switch between two states. When the lifting mechanism is not operating, the lifting platform is placed on the ground and the lifting chain and connector are in a relaxed state, thereby separating the locking teeth and the locking hole. When the lifting mechanism is operating, the lifting chain and connector are tightened, causing the connector to move toward the locking teeth and enter a tightened state, thereby locking both the locking teeth and the locking hole.

[0015] It is further configured as follows: the jacking mechanism includes a fixed block fixed on the lifting platform, a lifting block slidably set on the lifting platform and moving toward the fixed block, a driving cylinder driving the lifting block to move, and a reversing structure formed between the lifting block and the fixed block and for the lifting block to move up and down.

[0016] By adopting the above technical solution, the driving cylinder drives the jacking block to move toward the fixed block, and the movement direction of the jacking block is changed under the action of the reversing structure, thereby realizing the lifting and lowering movement of the jacking block.

[0017] It is further configured as follows: the connecting piece is a chain connected to the lifting chain, and the locking hole is a chain hole formed in the chain.

[0018] By adopting the above technical solution, this method has a simple structure and low production cost.

[0019] In summary, the present invention has the following beneficial effects: the present invention has low production cost and a lighter structure, thereby reducing overload loss of the lifting mechanism and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an embodiment;

[0021] Figure 2 It is a partial structural diagram of an embodiment;

[0022] Figure 3 is another partial structural diagram of the embodiment;

[0023] Figure 4 A partial exploded view of an embodiment;

[0024] Figure 5 A partial cross-sectional view of an embodiment;

[0025] Figure 6 for Figure 5 Enlarged view of part A in the middle;

[0026] Figure 7 Schematic diagram of the structure of the jacking mechanism in the embodiment.

[0027] In the figure: 1. Frame; 2. Paper loading space; 3. Lifting platform; 4. Lifting mechanism; 41. Connecting part; 42. Lifting sprocket; 43. Lifting chain; 44. Driving part; 5. Transmission track; 6. Transport trolley; 7. Lifting mechanism; 71. Fixed block; 72. Lifting block; 73. Driving cylinder; 74. Reversing structure; 8. Locking mechanism; 81. Locking block; 82. Locking tooth; 83. Locking hole; 9. Supporting roller; 10. Lifting hole. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] refer to Figures 1 to 7 A paper feeding adjustment device for a paper feeder includes a frame 1, a paper feeding space 2 formed on the frame 1, a lifting platform 3 located in the paper feeding space 2, a lifting mechanism 4 for driving the lifting platform 3 to move, a transmission track 5 fixedly mounted on the lifting platform 3, a transport trolley 6 located above the transmission track 5, and a lifting mechanism 7 provided on the lifting platform 3 for lifting the transport trolley 6. A sliding structure for the transport trolley 6 to move in the horizontal direction is provided above the lifting mechanism 7. The lifting mechanism 4 has a working state and a non-working state. When the lifting mechanism 4 is in the working state, the transport trolley 6 in the lifted state is limited to move horizontally by a locking mechanism 8; when the lifting mechanism 4 is in the non-working state, the locking mechanism 8 is in an unlocked state. An extension track connected to the transmission track 5 is fixedly provided on the ground outside the frame 1.

[0030] The sliding structure is a plurality of supporting rollers 9 rotatably arranged on the top of the lifting mechanism 7 . The plurality of supporting rollers 9 are horizontally arranged along a length direction perpendicular to the transmission track 5 , and the axes of the supporting rollers 9 are parallel to the length direction of the transmission track 5 .

[0031] The lifting mechanism 4 includes a connector 41 connected to the lifting platform 3. The lifting mechanism 4 switches between an operating state and a non-operating state, assigning the connector 41 a first position and a second position. The locking mechanism 8 includes a locking block 81 fixed to the transport trolley 6 and a locking assembly formed between the locking block 81 and the connector 41. When the connector 41 is in the first position or the second position, the locking assembly and the locking block 81 form a lock.

[0032] The locking assembly includes a plurality of locking teeth 82 integrally disposed on the side of the locking block 81 facing the connecting member 41 and a plurality of locking holes 83 distributed on the side of the connecting member 41 facing the locking teeth 82. The locking teeth 82 and the locking holes 83 are arranged and distributed along a direction parallel to the horizontal movement direction of the transport trolley 6.

[0033] The lifting mechanism 4 comprises a plurality of lifting sprockets 42 rotatably mounted on the frame 1, a plurality of lifting chains 43 that pass through the lifting sprockets 42 and connect to the lifting platform 3, and a drive member 44 that drives the lifting sprockets 42. Two of the lifting chains 43 pass through the lifting holes 10 of the lifting platform 3 and are integrally connected to the ends of the connecting member 41. The drive member 44 is a motor fixed to the frame 1, with its output shaft fixedly connected to the lifting sprockets 42. The connecting member 41 is a chain that integrally connects the lifting chains 43 (the chain is only partially illustrated in the figures), and the locking hole 83 is a chain hole formed in the connecting member 41.

[0034] The lifting mechanism 7 includes a fixed block 71 fixedly mounted on the top of the lifting platform 3, a lifting block 72 slidably mounted on the lifting platform 3 and reciprocating toward the fixed block 71, a driving cylinder 73 driving the lifting block 72 to move, and a reversing structure 74 formed between the lifting block 72 and the fixed block 71 and providing the lifting and lowering movement of the lifting block 72. The cylinder body of the driving cylinder 73 is fixedly mounted on the lifting platform 3, and the piston rod and the lifting block 72 form a linkage in the horizontal direction and a sliding fit in the vertical direction. The supporting roller 9 is rotatably mounted on the top of the lifting block 72. The reversing structure 74 is formed of two inclined, opposing mating surfaces formed on the lifting block 72 and the fixed block 71.

[0035] When the lifting mechanism 4 is working, the connecting piece 41 and the lifting chain 43 are driven to rise and are in a taut lifting state, driving the locking tooth 82 to insert into the locking hole 83 and making the lifting platform 3 in a horizontal state; when the lifting mechanism 4 is not working, the connecting piece 41 and the lifting chain 43 are in a relaxed drooping state, realizing the separation of the locking tooth 82 from the locking hole 83 and placing the lifting platform 3 on the ground.

[0036] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A paper feeding adjustment device for a paper feeder, comprising a frame (1), a paper feeding space (2) formed on the frame (1), a lifting platform (3) located in the paper feeding space (2), a lifting mechanism (4) for driving the lifting platform (3) to move, a transmission track (5) installed on the lifting platform (3), a transport trolley (6) located above the transmission track (5), and a lifting mechanism (7) provided on the lifting platform (3) for lifting the transport trolley (6), characterized in that: A sliding structure is provided above the lifting mechanism (7) for the transport trolley (6) to move in the horizontal direction. The lifting mechanism (4) has a working state and a non-working state. When the lifting mechanism (4) is in the working state, the transport trolley (6) in the lifting state is limited to move horizontally by a locking mechanism (8). When the lifting mechanism (4) is in the non-working state, the locking mechanism (8) is in an unlocked state.

2. The paper feed adjustment device for a paper feeder according to claim 1, characterized in that: The sliding structure is a plurality of supporting rollers (9) rotatably arranged on the top of the lifting mechanism (7), wherein the plurality of supporting rollers (9) are horizontally arranged along a length direction perpendicular to the transmission track (5) and the axes of the supporting rollers (9) are parallel to the length direction of the transmission track (5).

3. The paper feeding adjustment device for a paper feeder according to claim 1, characterized in that: The lifting mechanism (4) includes a connecting member (41) connected to the lifting platform (3); the lifting mechanism (4) switches between a working state and a non-working state to give the connecting member (41) a first position and a second position; the locking mechanism (8) includes a locking block (81) provided on the transport trolley (6) and a locking assembly formed between the locking block (81) and the connecting member (41); when the connecting member (41) is in the first position or the second position, the locking assembly and the locking block (81) form a locking state.

4. The paper feeding adjustment device for a paper feeder according to claim 3, characterized in that: The locking assembly comprises a plurality of locking teeth (82) distributed on a side of the locking block (81) facing the connecting member (41) and a plurality of locking holes (83) distributed on a side of the connecting member (41) facing the locking teeth (82), wherein the locking teeth (82) and the locking holes (83) are arranged and distributed in a direction parallel to the horizontal movement direction of the transport trolley (6).

5. The paper feeding adjustment device for a paper feeder according to claim 4, characterized in that: The lifting mechanism (4) comprises a plurality of lifting sprockets (42) rotatably arranged on the frame (1), a plurality of lifting chains (43) passing around the lifting sprockets (42) and connected to the lifting platform (3), and a driving member (44) driving the lifting sprockets (42) to rotate, wherein two of the lifting chains (43) pass through the lifting holes (10) of the lifting platform (3) and are connected to the two ends of the connecting member (41).

6. The paper feeding adjustment device for a paper feeder according to claim 2, characterized in that: The lifting mechanism (7) comprises a fixed block (71) fixedly arranged on the lifting platform (3), a lifting block (72) slidably arranged on the lifting platform (3) and moving toward the fixed block (71), a driving cylinder (73) driving the lifting block (72) to move, and a reversing structure (74) formed between the lifting block (72) and the fixed block (71) and providing the lifting block (72) with a lifting motion.

7. The paper feeding adjustment device for a paper feeder according to claim 5, characterized in that: The connecting member (41) is a chain connected to the lifting chain (43), and the locking hole (83) is a chain hole formed in the connecting member (41).

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