A feeding device

Abstract

The present invention belongs to the technical field of mechanical equipment, and particularly relates to a feeding device. It includes a chassis and a lower conveying roller assembly, an upper conveying roller assembly, and a relaxation assembly provided on the chassis. A second transmission member for driving connection with the first transmission member is provided at one end of the upper feeding roller, and a movable member is further provided between the upper feeding roller and the second transmission member. The upper feeding roller and the lower feeding roller are synchronously operated through the first transmission member and the second transmission member. During relaxation, the relaxation assembly drives the adjustment frame to move. By adding the movable member in this solution, the upper feeding roller can move relative to the second transmission member to adjust the conveying gap. During the whole process, the second transmission member does not need to move, thereby reducing the collision between the second transmission member and the first transmission member, greatly reducing the loss of the second transmission member, and being beneficial to improving the conveying accuracy.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical equipment, and particularly relates to a feeding device. Background Art

[0002] A feeding device is a machine that applies a force to a material through the action of machine movement to transport the material. In the stamping process, it is necessary to cooperate with a relaxation mechanism in the feeding device to correct the position of the workpiece. Existing feeding devices all feed materials by the transmission method of upper and lower rollers. When relaxing, the upper roller is lifted as a whole, and then reset during feeding. At present, although this method is simple, when the upper roller is lifted as a whole, it also includes lifting the transmission part, resulting in a collision between the transmission gear and the gear on the lower roller during reset. In this way, the wear of the transmission gear is increased during long-term and high-frequency use, and due to the increase of the tooth gap, the conveying accuracy of the feeding device decreases. Summary of the Invention

[0003] The purpose of the present invention is to provide a feeding device, which improves that during the relaxation action, only the upper feeding roller moves, while the second transmission member for transmission remains engaged with the first transmission member, thereby greatly improving the conveying accuracy of the device.

[0004] Based on this, the present invention provides a feeding device, including a chassis and the following components provided on the chassis;

[0005] A lower conveying roller assembly, including a lower feeding roller and a driving mechanism for driving the lower feeding roller to rotate, and a first transmission member is further provided on the lower feeding roller;

[0006] An upper conveying roller assembly, including an upper feeding roller and an adjusting frame, the adjusting frame is movably arranged in the chassis, the upper feeding roller is arranged on the adjusting frame, and the upper feeding roller is located above the lower feeding roller to form a conveying gap therebetween;

[0007] A relaxation assembly, located above the adjusting frame, for moving the adjusting frame to change the conveying gap between the upper feeding roller and the lower feeding roller;

[0008] A second transmission member for driving connection with the first transmission member is provided at one end of the upper feeding roller, and a movable member is further provided between the upper feeding roller and the second transmission member. The upper feeding roller can rotate synchronously with the second transmission member through the movable member and can move relative to the second transmission member when the adjusting frame moves.

[0009] In a feeding device as described above, the movable member is used to guide the upper feeding roller to move upward relative to the lower feeding roller in the chassis.

[0010] A feeding device as described above, on one side of the movable part relative to the second transmission part, there is a first guiding part that can make the movable part move relative to the second transmission part in the first direction, and on one side of the movable part relative to the upper feeding roller, there is a second guiding part that can make the upper feeding roller move relative to the movable part in the second direction.

[0011] A feeding device as described above, the first direction and the second direction are perpendicular to each other.

[0012] A feeding device as described above, the first guiding part is a strip-shaped key provided on one side of the second transmission part and protruding towards the movable part, and on the end face of the movable part, there is a first guiding groove for the strip-shaped key to be embedded and opened along the first direction. The second guiding part is a strip-shaped part connected to the end of the upper feeding roller, and on the end face of the movable part facing the upper feeding roller, there is a second guiding groove for the strip-shaped part to be embedded and opened along the second direction.

[0013] A feeding device as described above, the shaft end of the upper feeding roller extends to the outside of the chassis, the movable part and the second transmission part are both connected to the shaft end of the upper feeding roller outside the chassis, and on the chassis, there is an avoidance hole position for the shaft end of the upper feeding roller to extend out and for the shaft end of the upper feeding roller to move upward.

[0014] A feeding device as described above, on the side of the second transmission part facing away from the movable part, there is an installation cavity, on the outer periphery of the second transmission part facing away, there is a gear transmission part, outside the chassis, there is also a support frame, on the support frame, there is a support part, the support part is embedded into the installation cavity and is concentrically connected to the second transmission part through a bearing, and the strip-shaped keys are distributed on both sides of the central hole of the second transmission part.

[0015] A feeding device as described above, in the chassis, there is also a positioning roller, the adjusting frame is hinged on the positioning roller, on the upper side of the adjusting frame, there is also a matching seat, the relaxation component passes through the matching seat, and on the adjusting frame, there is also a counterweight.

[0016] A feeding device as described above, the relaxation component includes a rotating shaft, a relaxation driving part for driving the rotating shaft to rotate forward and backward, and a cam provided on the rotating shaft. The cam is located in the matching seat, and in the matching seat, there is also a matching part located above the cam and abutted against the cam.

[0017] Implementing the embodiments of the present invention has the following beneficial effects:

[0018] 1. The present invention provides a feeding device, in which the upper feeding roller and the lower feeding roller are synchronously operated through the first transmission member and the second transmission member. When relaxed, the relaxation assembly drives the adjustment frame to move. By adding a movable member in this solution, the upper feeding roller can move relative to the second transmission member to adjust the conveying gap. During the whole process, the second transmission member does not need to move, thus reducing the collision between the second transmission member and the first transmission member, greatly reducing the loss of the second transmission member, and being beneficial to improving the conveying accuracy.

[0019] 2. A feeding device of the present invention adopts a cam structure in cooperation with an adjustment frame, and uses the thickness difference and forward and reverse rotation of the cam to quickly adjust the conveying gap and reset. Moreover, the structure is simple and it is convenient to adjust the relaxation angle corresponding to the material thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0021] Figure 1 Schematic diagram of a feeding device provided by an embodiment of the present invention;

[0022] Figure 2 For Figure 1 exploded view;

[0023] Figure 3 For Figure 1 internal structure schematic diagram;

[0024] Figure 4 For Figure 3 schematic diagram of the upper conveying roller assembly in

[0025] Figure 5 For Figure 4 schematic diagram of the upper feeding roller in

[0026] Figure 6 For Figure 5 exploded view;

[0027] Figure 7 For Figure 4 exploded view of the adjustment frame in

[0028] Figure 8 For Figure 3 structural diagram of the relaxation assembly in

[0029] Figure 9 For Figure 8 schematic diagram showing the inside of the fitting seat in

[0030] Figure 10 Schematic diagram of the upper and lower feeding rollers located inside the chassis;

[0031] Figure 11 is Figure 2 Sectional view A-A of the middle section projected in the A direction;

[0032] Figure 12 is Figure 2 Sectional view B-B of the middle section projected in the B direction. Specific implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0034] As Figures 1 to 12 shown, an embodiment of the present invention provides a feeding device, including a chassis 1 and;

[0035] Lower conveying roller assembly 2, including a lower feeding roller 21 and a driving mechanism 22 for driving the lower feeding roller 21 to rotate. A first transmission member 23 is further provided on the lower feeding roller 21; an upper conveying roller assembly 3, including an upper feeding roller 31 and an adjusting frame 32. The adjusting frame 32 is movably disposed inside the chassis 1. The upper feeding roller 31 is disposed on the adjusting frame 32, and the upper feeding roller 31 is located above the lower feeding roller 21 to form a conveying gap between the upper feeding roller 31 and the lower feeding roller 21; a relaxation assembly 4 is located above the adjusting frame 32 and is used to move the adjusting frame 32 to change the conveying gap between the upper feeding roller 31 and the lower feeding roller 21; a second transmission member 33 in transmission connection with the first transmission member 23 is provided at one end of the upper feeding roller 31, and a movable member 5 is further provided between the upper feeding roller 31 and the second transmission member 33. The upper feeding roller 31 can rotate synchronously with the second transmission member 33 through the movable member 5 and can move relative to the second transmission member 33 when the adjusting frame 32 moves. The present invention provides a feeding device, in which the upper feeding roller and the lower feeding roller are synchronously operated through the first transmission member and the second transmission member. When relaxing, the relaxation assembly drives the adjusting frame to move. By adding a movable member in this solution, the upper feeding roller can move relative to the second transmission member to adjust the conveying gap. During the whole process, the second transmission member does not need to move, thereby reducing the collision between the second transmission member and the first transmission member, greatly reducing the loss of the second transmission member, and being beneficial to improving the conveying accuracy.

[0036] In the embodiment of the present invention, the movable member 5 is used to guide the upper feeding roller 31 to move upward relative to the lower feeding roller 21 in the chassis 1. During the relaxation process, the conveying gap is mainly adjusted by the upward movement of the upper feeding roller 31. In this solution, the upward movement of the upper feeding roller 31 follows the moving direction of the adjusting frame 32, and after the movement, the axis of the upper feeding roller 31 must be offset from the axis of the second transmission member 33. Therefore, during conveying, when the upper feeding roller 31 returns to its initial position, the axis of the upper feeding roller 31 is collinear with the axis of the second transmission member 33.

[0037] In addition, in the embodiment of the present invention, a first guiding member 61 that can make the movable member 5 move relative to the second transmission member 33 in the first direction is provided on one side of the movable member 5 relative to the second transmission member 33, and a second guiding member 62 that can make the upper feeding roller 31 move relative to the movable member 5 in the second direction is provided on one side of the movable member 5 relative to the upper feeding roller 31. Since the upper feeding roller 31 rotates with the second transmission member 33 during the feeding process, when it is relaxed, the upper feeding roller 31 can move upward away from the lower feeding roller 21 under the action of the first guiding member 61 or the second guiding member 62 or both the first guiding member 61 and the second guiding member 62.

[0038] Certainly, in the embodiment of the present invention, the first direction and the second direction are perpendicular to each other. In this way, when one direction rotates to the horizontal position, the other direction must be in the vertical position. Moreover, through this structural setting in this solution, a cross universal rotation structure is formed, that is, it can rotate and transmit power, and relative movement can also be achieved through the first guiding member 61 and the second guiding member 62.

[0039] Specifically, the first guiding member 61 is a strip-shaped key provided on one side of the second transmission member 33 and protruding towards the movable member 5. A first guiding groove 501 for the strip-shaped key to be embedded and opened in the first direction is provided on the end face of the movable member 5. The second guiding member 62 is a strip-shaped member connected to the end of the upper feeding roller 31. A second guiding groove 502 for the strip-shaped member to be embedded and opened in the second direction is provided on the end face of the movable member 5 facing the upper feeding roller 31. By adopting the cooperation mode of the key and the guiding groove, while realizing rotational transmission, the structure of the key can also move in the guiding groove to realize the relaxation movement of the upper feeding roller 31. Of course, in order to strengthen the connection and transmission, in this solution, an embedding groove for the second guiding member 62 to be embedded is also provided at the end of the upper feeding roller 31.

[0040] In this solution, a positioning roller 12 is further provided in the chassis 1, and the adjusting frame 32 is hinged on the positioning roller 12. That is, when the upper feeding roller 31 is actually relaxed, it moves in an arc towards the upper side of the lower feeding roller 21. However, in actual use, the movement range of the upper feeding roller 31 is not allowed to be too large, and this arc movement can be achieved through the common action of the first guiding member 61 and the second guiding member 62.

[0041] In this solution, the adjustment range of the conveying gap is from 0.1 mm to 10 mm, which can meet the thickness requirements of various conveyed materials, making the product applicable to a wider range.

[0042] In the embodiment of the present invention, the shaft end of the upper feeding roller 31 extends outside the chassis 1. The movable member 5 and the second transmission member 33 are both connected to the shaft end of the upper feeding roller 31 outside the chassis 1. The chassis 1 is provided with an avoidance hole position 101 for the shaft end of the upper feeding roller 31 to extend out and for the shaft end of the upper feeding roller 31 to move upward. In order to facilitate the arc movement of the upper feeding roller 31, the width of the avoidance hole position 101 in the horizontal direction in this solution is greater than the shaft end of the upper feeding roller 31 to ensure that it can move relative to the second transmission member 33.

[0043] Moreover, in this solution, the first transmission member 23 and the second transmission member 33 are connected in a gear transmission docking manner. Since the second transmission member 33 also needs to be connected to the movable upper feeding roller 31, an installation cavity 331 is provided on the side of the second transmission member 33 facing away from the movable member 5. A gear transmission portion is provided on the outer periphery of the second transmission member 33. A support frame 11 is also provided outside the chassis 1. A support member 111 is provided on the support frame 11. The support member 111 is embedded in the installation cavity 331 and is concentrically connected to the second transmission member 33 through a bearing. Since this solution does not directly connect the second transmission member 33 to the upper feeding roller 31, and to ensure that the upper feeding roller 31 and the second transmission member 33 are coaxially installed to ensure that the second transmission member 33 drives the upper feeding roller 31 to rotate along the axis of the upper feeding roller 31, the second transmission member 33 is centeringly installed through the support member 111. Moreover, after the upper feeding roller 31 is reset, it naturally falls to a position coaxial with the support member 111. In addition, the strip keys are distributed on both sides of the central hole of the second transmission member 33. It is convenient to rotate it to any angle and also convenient to move.

[0044] In the embodiment of the present invention, a mating seat 7 is further provided on the upper side of the adjusting frame 32. The relaxation assembly 4 passes through the mating seat 7. A counterweight block 321 is also provided on the adjusting frame 32. The counterweight block 321 is used to keep the adjusting frame 32 under a certain pressure for easy reset. Specifically, the relaxation assembly 4 includes a rotating shaft 41, a relaxation driving member 42 for driving the rotating shaft 41 to rotate forward and backward, and a cam 43 provided on the rotating shaft 41. The cam 43 is located in the mating seat 7. A mating member 72 is also provided in the mating seat 7 above the cam 43 and abuts against the cam 43. The thickness difference and forward and backward rotation of the cam are used to achieve rapid adjustment of the conveying gap and reset, and the structure is simple, and it is also convenient to adjust the relaxation angle corresponding to the material thickness. And the above-mentioned counterweight block 321 is used to keep the mating member 72 in contact with the cam 43.

[0045] The present invention provides a feeding device, in which the upper feeding roller and the lower feeding roller are synchronously operated through the first transmission member and the second transmission member. When relaxed, the relaxation assembly drives the adjustment frame to move. By adding a movable member in this solution, the upper feeding roller can move relative to the second transmission member to adjust the conveying gap. During the whole process, the second transmission member does not need to move, thereby reducing the collision between the second transmission member and the first transmission member, greatly reducing the loss of the second transmission member, and being beneficial to improving the conveying accuracy.

[0046] It should be understood that in the present invention, terms such as "first" and "second" are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information can also be called the "second" information, and similarly, the "second" information can also be called the "first" information. In addition, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0047] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and deformations can be made, and these improvements and deformations are also regarded as the protection scope of the present invention.

Claims

1. A feeding device, characterized in that, It includes a chassis (1), a lower conveying roller assembly (2), an upper conveying roller assembly (3) and a relaxation assembly (4) provided on the chassis (1); The lower conveying roller assembly (2) includes a lower feeding roller (21) and a driving mechanism (22) for driving the lower feeding roller (21) to rotate. A first transmission member (23) is further provided on the lower feeding roller (21); The upper conveying roller assembly (3) includes an upper feeding roller (31) and an adjusting frame (32). The adjusting frame (32) is movably provided in the chassis (1). The upper feeding roller (31) is provided on the adjusting frame (32), and the upper feeding roller (31) is located above the lower feeding roller (21) to form a conveying gap between the upper feeding roller (31) and the lower feeding roller (21); A positioning roller (12) is further provided in the chassis (1). The adjusting frame (32) is hinged on the positioning roller (12). A matching seat (7) is further provided on the upper side of the adjusting frame (32). The relaxation assembly (4) passes through the matching seat (7); The relaxation assembly (4), located on the upper side of the adjusting frame (32), is used to move the adjusting frame (32) to change the conveying gap between the upper feeding roller (31) and the lower feeding roller (21). The relaxation assembly (4) includes a rotating shaft (41), a relaxation driving member (42) for driving the rotating shaft (41) to rotate forward and backward, and a cam (43) provided on the rotating shaft (41). The cam (43) is located in the matching seat (7); A second transmission member (33) for driving connection with the first transmission member (23) is provided at one end of the upper feeding roller (31). An active member (5) is further provided between the upper feeding roller (31) and the second transmission member (33). The active member (5) is used to guide the upper feeding roller (31) to move upward relative to the lower feeding roller (21) in the chassis (1). The upper feeding roller (31) can rotate synchronously with the second transmission member (33) through the active member (5) and can move relative to the second transmission member (33) when the adjusting frame (32) moves; 2. The feeding device according to claim 1, characterized in that, A first guiding member (61) capable of moving the active member (5) relative to the second transmission member (33) in a first direction is provided on one side of the active member (5) relative to the second transmission member (33). A second guiding member (62) capable of moving the upper feeding roller (31) relative to the active member (5) in a second direction is provided on one side of the active member (5) relative to the upper feeding roller (31); 3. The feeding device according to claim 2, wherein The first direction and the second direction are perpendicular to each other; 4. A feeding device according to claim 2 or 3, characterized in that, The first guiding member (61) is a strip-shaped key provided on one side of the second transmission member (33) and protruding towards the active member (5). A first guiding groove (501) for embedding the strip-shaped key and opened in the first direction is provided on the end face of the active member (5). The second guiding member (62) is a strip-shaped member connected to the end of the upper feeding roller (31). A second guiding groove (502) for embedding the strip-shaped member and opened in the second direction is provided on the end face of the active member (5) facing the upper feeding roller (31).

5. A feeding device according to claim 4, characterized in that The shaft end of the upper feeding roller (31) extends to the outside of the chassis (1). The movable member (5) and the second transmission member (33) are both connected to the shaft end of the upper feeding roller (31) outside the chassis (1). The chassis (1) is provided with an avoidance hole position (101) for the shaft end of the upper feeding roller (31) to extend and for the shaft end of the upper feeding roller (31) to move upward.

6. A feeding device according to claim 4, wherein An installation cavity (331) is provided on the side of the second transmission member (33) facing away from the movable member (5). A gear transmission part is provided on the outer periphery of the second transmission member (33). A support frame (11) is further provided outside the chassis (1). A support member (111) is provided on the support frame (11). The support member (111) is embedded into the installation cavity (331) and is concentrically connected to the second transmission member (33) through a bearing. The strip-shaped key is distributed on both sides of the central hole of the second transmission member (33).

7. A feeding device according to claim 1, characterized in that, A counterweight block (321) is further provided on the adjusting frame (32).

8. A feeding device according to claim 7, characterized in that, A fitting member (72) which is located above the cam (43) and abuts against the cam (43) is further provided in the fitting seat (7).

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