Automatic feeding mechanism of paper feeder

Abstract

The utility model relates to an automatic feeding mechanism of a paper feeder, which comprises a rack, a placing frame arranged on the bearing surface of the rack and an automatic feeding assembly arranged on the rack, and the bearing surface of the rack is provided with two strip-shaped holes which are arranged in parallel; the automatic feeding assembly comprises a mounting frame arranged in the rack, a conveying component arranged on the mounting frame and a pushing part arranged on the conveying component, the pushing end of the pushing part penetrates through the long-strip-shaped hole to extend to the bearing face of the rack, and the pushing end of the pushing part abuts against the lowermost paperboard located on the containing frame. And the height of the pushing end of the pushing piece is adjustable. According to the paperboard feeding device, the conveying end of the automatic feeding assembly can be adjusted to be matched with paperboards with different thicknesses, and therefore the effect of automatically feeding the paperboards with different thicknesses is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of paper feeders, and in particular, to an automatic paper feeding mechanism for a paper feeder. Background Art

[0002] In the process of producing packaging cartons, the cardboard for packaging cartons needs to go through processes such as printing, laminating, gilding, box making, die cutting, etc.

[0003] In order to facilitate the transportation of the cardboard into the printing machine for printing, an automatic paper feeder is usually set at the feeding end of the printing machine to complete the automatic transportation of the cardboard; the automatic paper feeder includes a frame, a placement rack arranged on the bearing surface of the frame, and an automatic feeding assembly arranged on the frame. The placement rack is used to place stacks of cardboard, and the automatic feeding assembly has a conveying end with a specific height. The conveying end of the automatic feeding assembly is abutted against the lowermost cardboard on the placement rack to convey the cardboard on the placement rack one by one from bottom to top.

[0004] Regarding the above related technologies, the inventor believes that there are the following defects: the height of the conveying end of the automatic feeding assembly is specific, and the thicknesses of different cardboards are different, so that the conveying end of the automatic feeding assembly cannot be adjusted according to cardboards of different thicknesses. Therefore, further improvements are needed. Utility Model Content

[0005] In order to enable the conveying end of the automatic feeding assembly to be adjusted to match cardboards of different thicknesses, so as to realize automatic feeding of cardboards of different thicknesses, the present application provides an automatic paper feeding mechanism for a paper feeder.

[0006] The automatic paper feeding mechanism for a paper feeder provided by the present application adopts the following technical solutions:

[0007] An automatic paper feeding mechanism for a paper feeder includes a frame, a placement rack arranged on the bearing surface of the frame, and an automatic feeding assembly arranged on the frame. Two long strip holes are arranged in parallel on the bearing surface of the frame. The automatic feeding assembly includes a mounting rack arranged in the frame, a conveying component arranged on the mounting rack, and a pushing component arranged on the conveying component. The pushing end of the pushing component extends through the long strip hole to the bearing surface of the frame, and the pushing end of the pushing component is abutted against the lowermost cardboard on the placement rack, and the height of the pushing end of the pushing component is adjustable.

[0008] By adopting the above technical solutions, according to the thicknesses of different cardboards, the height of the pushing end of the pushing component is adjusted so that the pushing component can match the thickness of the corresponding cardboard, and under the conveying action of the conveying component, automatic feeding of cardboards of different thicknesses is realized.

[0009] Optionally, the pusher includes an insertion cylinder disposed on the conveying member, an insertion block inserted and fitted with the insertion cylinder, a connecting arm fixedly connected to the top end of the insertion block, and two pushing cylinders symmetrically fixed to both ends of the top surface of the connecting arm. The two pushing cylinders respectively correspond to the positions of the two long holes, and one end of the pushing cylinder away from the connecting arm passes through the corresponding long hole and extends to the bearing surface of the rack. The conveying member is used to drive the pushing cylinder to move along the length direction of the long hole. One side of the insertion cylinder is provided with a plurality of threaded holes 1 distributed at equal intervals and located on the same vertical line. The insertion block is provided with a plurality of threaded holes 2. The number of the threaded holes 2 is the same as that of the threaded holes 1 and corresponds to each other one by one. The corresponding threaded holes 1 and 2 are threadedly connected with bolts.

[0010] By adopting the above technical solution, according to the thickness of different cardboard sheets, the bolts are threadedly connected in the corresponding threaded holes 1 and 2, and by adjusting the relative distance between the insertion block and the insertion cylinder, the pushing cylinder can be made to match the thickness of the corresponding cardboard sheet.

[0011] Optionally, the conveying member includes a driving member disposed on the mounting frame, a driving wheel and a driven wheel respectively rotatably connected to both ends of the mounting frame, and a conveyor belt disposed on the driving wheel and the driven wheel. The output end of the driving member passes through the mounting frame and is fixedly connected to the driving wheel. The insertion cylinder is fixedly connected to the outer side of the conveyor belt.

[0012] By adopting the above technical solution, the output shaft of the driving member drives the driving wheel to rotate. Under the cooperation of the driving wheel and the driven wheel, the conveyor belt drives the pushing cylinder to move along the length direction of the long hole.

[0013] Optionally, an arc-shaped buffer pad is disposed above the bearing surface of the rack on the circumferential side of the pushing cylinder.

[0014] By adopting the above technical solution, the setting of the buffer pad plays a buffering role in the abutment between the cardboard sheet and the pushing cylinder, thereby reducing the damage to the surface of the cardboard sheet.

[0015] Optionally, a connecting rod is fixedly connected to the inner arc side of the buffer pad. One end of the connecting rod away from the buffer pad passes through the pushing cylinder and extends into the cavity of the pushing cylinder. A limiting block is fixedly connected to the end of the connecting rod away from the buffer pad. A spring is also sleeved on the connecting rod. One end of the spring is fixedly connected to the inner side wall of the pushing cylinder, and the other end is fixedly connected to the side of the limiting block close to the connecting rod.

[0016] By adopting the above technical solution, the setting of the spring and the connecting rod enables the buffer pad to be telescopic relative to the pushing cylinder, thereby improving the buffering performance of the buffer pad.

[0017] Optionally, a plurality of pushing members are provided, and the plurality of pushing members are arranged at equal intervals on the outer side of the conveyor belt, and the distance between adjacent pushing members is greater than the length of the cardboard.

[0018] By adopting the above technical solution, the distance between adjacent pushing members is greater than the length of the cardboard, so that the pushing members can adapt to cardboard of different lengths.

[0019] To sum up, the present application includes at least one of the following beneficial technical effects:

[0020] 1. According to the thickness of different cardboard, adjust the height of the pushing end of the pushing member so that the pushing member can match the thickness of the corresponding cardboard, and under the conveying action of the conveying component, realize automatic feeding of cardboard of different thicknesses;

[0021] 2. According to the thickness of different cardboard, thread the bolt into the corresponding first threaded hole and second threaded hole, and by adjusting the relative distance between the insertion block and the insertion cylinder, the pushing cylinder can match the thickness of the corresponding cardboard. Description of the Drawings

[0022] Figure 1 is a schematic diagram of the overall structure of the present application.

[0023] Figure 2 is Figure 1 a partial enlarged schematic diagram of part A in

[0024] Figure 3 is a schematic diagram of the structure of the pushing member in the present application.

[0025] Description of the reference numerals: 1, frame; 11, long hole; 2, placing rack; 21, supporting plate; 3, automatic feeding assembly; 31, mounting rack; 311, long strip plate; 312, connecting plate; 32, conveying component; 321, driving member; 322, conveyor belt; 33, pushing member; 331, insertion cylinder; 3311, first threaded hole; 3312, bolt; 332, insertion block; 3321, second threaded hole; 333, connecting arm; 334, pushing cylinder; 335, buffer pad; 336, limiting block; 337, spring. Detailed Description of the Invention

[0026] The following is a further detailed description of the present application in conjunction with the attached Figures 1-3 drawings.

[0027] The embodiment of the present application discloses an automatic feeding mechanism of a paper feeder. Refer to Figure 1, the automatic feeding mechanism of the paper feeder includes a frame 1, a placement rack 2 arranged on the bearing surface of the frame 1, and an automatic feeding assembly 3 arranged on the frame 1. The placement rack 2 is used to place stacks of cardboard. The conveying end of the automatic feeding assembly 3 abuts against the cardboard on the placement rack 2 to convey the cardboard on the placement rack 2 one by one from bottom to top.

[0028] Refer to Figure 1 and Figure 2 , the placement rack 2 includes two relatively arranged support plates 21. The support plates 21 are L-shaped, and the included angles of the two support plates 21 are relatively arranged; the two support plates 21 are respectively located on both sides of the length direction of the bearing surface of the frame 1, and the bottom surface of the horizontal side of the support plate 21 is fixedly connected to the bearing surface of the frame 1; the top surfaces of the horizontal sides of the two support plates 21 jointly support stacks of cardboard.

[0029] Refer to Figure 2 and Figure 3 , two long holes 11 arranged in parallel with each other are opened on the bearing surface of the frame 1. The length direction of the long holes 11 is the same as the length direction of the bearing surface of the frame 1. The two long holes 11 are located between the two support plates 21. The automatic feeding assembly 3 includes a mounting frame 31 arranged in the frame 1, a conveying component 32 arranged on the mounting frame 31, and a pushing member 33 arranged on the conveying component 32; the pushing end of the pushing member 33 passes through the long hole 11 and extends to the bearing surface of the frame 1, and the pushing end of the pushing member 33 abuts against the lowermost cardboard on the placement rack 2; the height of the pushing end of the pushing member 33 is adjustable.

[0030] Refer to Figure 2 and Figure 3 , the mounting frame 31 includes two relatively arranged long plates 311 and multiple groups of connecting plate groups arranged on the long plates 311. The two long plates 311 are both arranged in the frame 1 and located below the bearing surface of the frame 1; the length direction of the long plates 311 is the same as the length direction of the bearing surface of the frame 1. The multiple groups of connecting plate groups are equally spaced along the length direction of the long plates 311; each connecting plate group includes two connecting plates 312 symmetrically fixed on the mutually remote sides of the two long plates 311, and the end of the connecting plate 312 away from the long plate 311 is fixedly connected to the corresponding support foot of the frame 1; the conveying component 32 is arranged between the two long plates 311.

[0031] Refer to Figure 2 and Figure 3, the conveying component 32 includes a driving member 321 mounted on the outer side of one of the long plates 311, a driving wheel and a driven wheel rotatably connected to the adjacent sides of the two long plates 311, and a conveyor belt 322 disposed on the driving wheel and the driven wheel; the driving wheel and the driven wheel are respectively located at both ends of the long plate 311, and the output end of the driving member 321 passes through the long plate 311 and is fixedly connected to the driving wheel; the pushing member 33 is disposed on the conveyor belt 322. In this embodiment, the driving member 321 is a servo motor. Thus, the output shaft of the servo motor drives the driving wheel to rotate, and under the cooperation of the driving wheel and the driven wheel, the conveyor belt 322 drives the pushing member 33.

[0032] Referring to Figure 2 and Figure 3 , a plurality of pushing members 33 are provided, and the plurality of pushing members 33 are equidistantly arranged on the outer side of the conveyor belt 322; the distance between adjacent pushing members 33 is greater than the length of the cardboard. The pushing member 33 includes an insertion cylinder 331 fixedly connected to the outer side of the conveyor belt 322, an insertion block 332 inserted and matched with the insertion cylinder 331, a connecting arm 333 fixedly connected to the top end of the insertion block 332, and two pushing cylinders 334 symmetrically fixed to both ends of the top surface of the connecting arm 333; the insertion cylinder 331 is in a long strip shape, and the insertion cylinder 331 is a hollow cylinder with an open top, the insertion block 332 is matched with the insertion cylinder 331, and the bottom end of the insertion block 332 is inserted into the insertion cylinder 331 through the opening of the insertion cylinder 331; in order to be able to adjust the relative distance between the insertion block 332 and the insertion cylinder 331, a plurality of equally spaced threaded holes 3311 located on the same vertical line are provided on one side of the insertion cylinder 331, a plurality of threaded holes 3321 are provided on the insertion block 332, the number of the threaded holes 3321 is the same as that of the threaded holes 3311 and they correspond one by one; bolts 3312 are threadedly connected to the correspondingly positioned threaded holes 3311 and 3321.

[0033] Referring to Figure 2 and Figure 3 , the insertion cylinder 331 is located between the two pushing cylinders 334, the two pushing cylinders 334 respectively correspond to the two long holes 11 in position, and the end of the pushing cylinder 334 away from the connecting arm 333 extends through the correspondingly positioned long hole 11 to the bearing surface of the frame 1. The pushing cylinder 334 is in a cylindrical shape, and the pushing cylinder 334 is a hollow cylinder with an open top; an arc-shaped buffer pad 335 is provided on the circumferential side of the pushing cylinder 334 and above the bearing surface of the frame 1. A connecting rod is fixedly connected to the inner arc side of the buffer pad 335, and the end of the connecting rod away from the buffer pad 335 passes through the pushing cylinder 334 and extends into the cavity of the pushing cylinder 334; a limiting block 336 is fixedly connected to the end of the connecting rod away from the buffer pad 335, and a spring 337 is also sleeved on the connecting rod. One end of the spring 337 is fixedly connected to the inner side wall of the pushing cylinder 334, and the other end is fixedly connected to the side of the limiting block 336 close to the connecting rod.

[0034] The implementation principle of the automatic feeding mechanism of a paper feeder in an embodiment of this application is as follows: According to the thickness of different cardboard, the bolt 3312 is threadedly connected to the corresponding first threaded hole 3311 and the second threaded hole 3321. By adjusting the relative distance between the insertion block 332 and the insertion cylinder 331, the pushing cylinder 334 can be made to match the thickness of the corresponding cardboard. The servo motor is started, and the output shaft of the servo motor drives the driving wheel to rotate. Under the combined action of the driving wheel and the driven wheel, the conveyor belt 322 drives the pushing cylinder 334 to move along the length direction of the long hole 11 to achieve the purpose of automatic feeding.

[0035] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An automatic feeding mechanism for a paper feeder, comprising a frame (1), a placement rack (2) arranged on the bearing surface of the frame (1), and an automatic feeding assembly (3) arranged on the frame (1), characterized in that: On the bearing surface of the frame (1), there are two long holes (11) arranged in parallel. The automatic feeding component (3) includes a mounting frame (31) arranged inside the frame (1), a conveying component (32) arranged on the mounting frame (31), and a pushing component (33) arranged on the conveying component (32). The pushing end of the pushing component (33) passes through the long hole (11) and extends to the bearing surface of the frame (1), and the pushing end of the pushing component (33) abuts against the lowermost cardboard on the placing rack (2). The height of the pushing end of the pushing component (33) is adjustable.

2. The automatic feeding mechanism of a paper feeder according to claim 1, characterized in that: The pushing component (33) includes a socket cylinder (331) arranged on the conveying component (32), a plug block (332) inserted and matched with the socket cylinder (331), a connecting arm (333) fixedly connected to the top end of the plug block (332), and two pushing cylinders (334) symmetrically fixed at both ends of the top surface of the connecting arm (333). The two pushing cylinders (334) correspond to the positions of the two long holes (11) respectively, and the end of the pushing cylinder (334) away from the connecting arm (333) passes through the corresponding long hole (11) and extends to the bearing surface of the frame (1). The conveying component (32) is used to drive the pushing cylinder (334) to move along the length direction of the long hole (11). On one side of the socket cylinder (331), there are a plurality of threaded holes one (3311) distributed at equal intervals and on the same vertical line. On the plug block (332), there are a plurality of threaded holes two (3321). The number of the threaded holes two (3321) is the same as and corresponds one by one to the number of the threaded holes one (3311). Bolts (3312) are threadedly connected to the corresponding threaded holes one (3311) and threaded holes two (3321).

3. The automatic feeding mechanism of a paper feeder according to claim 2, characterized in that: The conveying component (32) includes a driving component (321) arranged on the mounting frame (31), a driving wheel and a driven wheel respectively rotatably connected to both ends of the mounting frame (31), and a conveyor belt (322) arranged on the driving wheel and the driven wheel. The output end of the driving component (321) passes through the mounting frame (31) and is fixedly connected to the driving wheel. The socket cylinder (331) is fixedly connected to the outer side of the conveyor belt (322).

4. The automatic feeding mechanism of a paper feeder according to claim 2, characterized in that: An arc-shaped buffer pad (335) is arranged on the circumferential side of the pushing cylinder (334) and above the bearing surface of the frame (1).

5. The automatic feeding mechanism of a paper feeder according to claim 4, characterized in that: A connecting rod is fixedly connected to the inner arc side of the buffer pad (335). The end of the connecting rod away from the buffer pad (335) passes through the pushing cylinder (334) and extends into the cavity of the pushing cylinder (334). A limiting block (336) is fixedly connected to the end of the connecting rod away from the buffer pad (335). A spring (337) is also sleeved on the connecting rod. One end of the spring (337) is fixedly connected to the inner side wall of the pushing cylinder (334), and the other end is fixedly connected to the side of the limiting block (336) close to the connecting rod.

6. The automatic feeding mechanism of a paper feeder according to claim 3, characterized in that: A plurality of the pushing components (33) are arranged, and the plurality of pushing components (33) are arranged at equal intervals on the outer side of the conveyor belt (322). The distance between adjacent pushing components (33) is greater than the length of the cardboard.

Images