A feeding and pressing integrated mechanism for sheet material feeder

Abstract

The utility model relates to a kind of feeding and pressing integrated mechanism for sheet material feeder, it includes: rack, connecting rod pressing assembly, the front end of first transmission connecting rod is provided with first pin shaft, the end of first pin shaft is inserted into circular motion guide slot and hinged second transmission connecting rod, and the front end of second transmission connecting rod is installed pressing plate;Second transmission connecting rod rear end is hinged with the lower end of one upper circular motion guide connecting rod again;The upper end of upper circular motion guide connecting rod is hinged on side plate, and located on the center of circular motion guide slot;The middle part of second transmission connecting rod is hinged with the front end of lower circular motion guide connecting rod, and the rear end of lower circular motion guide connecting rod is hinged on side plate, and located below circular motion guide slot;Suction disc lifting cylinder is installed in the inside of rack, and space is reserved for first transmission connecting rod to pass between it and side plate;Its lower end telescopic end is installed on suction disc holder, and suction disc is distributed with interval on the bottom surface of suction disc holder.The utility model is favorable to feeding and pressing mechanism integrated installation.

Description

Technical Field

[0001] This utility model relates to the field of sheet feeders, and in particular to an integrated feeding and pressing mechanism for sheet feeders. Background Technology

[0002] For example, Chinese Invention Patent Publication No. CN 117622976 A discloses a sheet strip peeling mechanism and peeling feeder. It includes: a frame, a peeling blade, a pressing assembly, and a pulling assembly. The pressing assembly is positioned above the peeling blade and includes a pressing part and a pressing drive part. The pressing drive part drives the pressing part to move to the tail end of the sheet, applying pressure towards the peeling blade. The pressing part cooperates with the peeling blade to clamp the tail end of the sheet. The pulling assembly is inclinedly positioned below the peeling blade and includes a sheet gripper and a pulling drive part. The pulling drive part drives the sheet gripper to move to the head end of the sheet, clamping the head end of the sheet. The pulling drive part and the pressing drive part synchronously drive the sheet gripper, the sheet, and the pressing part to move. The sheet gripper and the pressing part work together to tighten the sheet, causing it to bend at the cutting edge of the peeling blade. At the bend, the material on the sheet can separate from the sheet. Its pressing and feeding mechanisms are driven by different motion components, requiring at least two guide rails and operating in layers, which results in higher costs and larger space requirements. If the sheet moves too far to the left or right, too high to the right or too fast, the suspended part of the sheet is prone to large swing amplitude due to atmospheric pressure, thus affecting the feeding quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an integrated feeding and pressing mechanism for a sheet feeder. It adopts an integrated installation method of pressing and feeding mechanism to improve space utilization, reduce the moving distance and lifting distance of feeding mechanism, make sheet transportation more stable, and reduce the risk of feeding being affected by excessive swing amplitude of sheet cantilever.

[0004] To solve the above problems, a feeding and pressing integrated mechanism for a sheet feeder is adopted, which includes: The frame includes two parallel side plates extending longitudinally and an end plate extending laterally between the two side plates; the end plate is located behind the side plates, and an arc-shaped motion guide groove is formed in the middle of the front side of the two end plates. A connecting rod pressing assembly includes a cylinder mounted behind an end plate. The telescopic end of the pressing cylinder passes through the end plate and extends between two side plates. The telescopic end is fitted with a hinged support. The hinged support extends laterally on both sides and is hinged to the rear end of a first transmission connecting rod on both sides. The front end of the first transmission connecting rod extends between two arc-shaped motion guide grooves. A first pin extending laterally passes through the front end of the first transmission connecting rod. The end of the first pin extends into the arc-shaped motion guide groove and is hinged to the rear end of a second transmission connecting rod. A pressing plate is mounted on the front end of the second transmission connecting rod. The rear end of the second transmission connecting rod is concentrically hinged to the lower end of an upper arc-shaped motion guide connecting rod. The upper end of the upper arc-shaped motion guide connecting rod is hinged to the side plate and located at the center of the arc of the arc-shaped motion guide groove. The middle part of the second transmission connecting rod is hinged to the front end of a lower arc-shaped motion guide connecting rod. The rear end of the lower arc-shaped motion guide connecting rod is hinged to the side plate and located below the arc-shaped motion guide groove. The suction cup lifting cylinder is installed inside the frame, and a space is reserved between it and the side plate for the first transmission connecting rod to pass through; its lower telescopic end is installed on the suction cup frame, and suction cups are distributed at intervals on the bottom surface of the suction cup frame.

[0005] With this structure, the suction cup lifting cylinder and the connecting rod pressing assembly are integrated and mounted on the frame. As long as the frame moves, the suction cup lifting cylinder and the connecting rod pressing assembly can be moved synchronously. Moreover, guided by the arc motion guide groove, the upper arc motion guide connecting rod, and the lower arc motion guide connecting rod, the second transmission connecting rod rotates clockwise under the push of the first transmission connecting rod, allowing the pressing plate to press downward. When the suction cup lifting cylinder needs to pick up material, the first transmission connecting rod retracts under the control of the pressing cylinder. At this time, the second transmission connecting rod rotates counterclockwise under the guidance of the arc motion guide groove, the upper arc motion guide connecting rod, and the lower arc motion guide connecting rod, thereby lifting it. This avoids affecting the movement path of the sheet material, allowing the sheet material to move smoothly to the bottom of the suction cup frame and be picked up by the suction cup.

[0006] As a further improvement of this utility model, the frame is mounted on a longitudinal moving platform, one side of which is mounted on a longitudinal guide rail; the other side is mounted on a drive belt assembly, which is mounted on a feeder.

[0007] With this structure, a single longitudinal moving platform is sufficient to move the rack; As a further improvement of this utility model, the upper end of the upper arc motion guide link is hinged to the second pin; the second pin passes through the side plate.

[0008] This structure facilitates the stable rotation of the connecting rod guided by the upper circular arc motion.

[0009] As a further improvement of this utility model, the suction cups are arranged at the four corners of the rectangle.

[0010] This structure, because the sheet material is rectangular, allows for the stable adsorption of the rectangular sheet material by arranging the suction cups.

[0011] As a further improvement of this utility model, a sheet material traction machine is installed at the front end of the feeder.

[0012] With this structure, the sheet material traction machine ejects sheet material at the front end of the feeder, and then the suction cup lifting cylinder moves to a position close to the sheet material traction machine to absorb the sheet material.

[0013] As a further improvement of this utility model, the angle formed by the second transmission link and the upper arc motion guide link with the horizontal plane after they are collinear is the installation angle between the pressure plate and the second transmission link.

[0014] This structure ensures that the bottom surface of the pressure plate coincides with the horizontal plane during tableting, thereby increasing the contact area with the tablet material.

[0015] As a further improvement of this utility model, a set of suction cup lifting cylinders, suction cup frame and suction cup are also provided on the rear side of the pressing cylinder.

[0016] With this structure, for longer sheets, more suction cups can be arranged at the rear. These suction cups can be synchronized with the suction cups at the front, or a single cylinder can be used to control the lifting.

[0017] This invention utilizes a linkage structure to lift the pressure plate to the top for clearance, eliminating the need for the suction cup to be adjusted backward. This facilitates the integrated installation of the pressure and feeding mechanisms, improves space utilization, reduces the moving and lifting distances of the feeding mechanism, and makes sheet material transportation more stable. This also reduces the risk of the suspended parts of the sheet material being affected by excessive swaying during feeding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0019] Figure 2 This is a schematic diagram of the material handling process in an embodiment.

[0020] Figure 3 This is a schematic diagram of the pressing state in an embodiment.

[0021] Figure 4 This is a schematic diagram of the structure with a rear-mounted feeding mechanism added to the embodiment.

[0022] Figure 5 This is a diagram showing the markings of each node in a linkage mechanism.

[0023] Figure 6 A simplified structural diagram of the connecting rod.

[0024] Figure 7 This is a schematic diagram showing the calculated lengths of each link.

[0025] Figure 8 This is a schematic diagram showing the lifting state of the pressure plate.

[0026] Figure 9 This is a schematic diagram of the pressing state of the pressure plate.

[0027] Figure 10 This is a schematic diagram showing the length of the material head overhang.

[0028] Reference numerals: 1. Frame; 101. Side plate; 102. End plate; 103. Arc-shaped motion guide groove; 2. Connecting rod pressing assembly; 201. Pressing cylinder; 202. Hinge support; 203. First transmission connecting rod; 204. First pin; 205. Second transmission connecting rod; 206. Pressing plate; 207. Upper arc motion guide connecting rod; 208. Lower arc motion guide connecting rod; 209. Second pin; 3. Suction cup lifting cylinder; 301. Suction cup frame; 302. Suction cup; 4. Longitudinal moving platform; 5. Longitudinal guide rail; 6. Drive belt assembly; 7. Feeder; 8. Sheet traction machine. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example 1 like Figures 1-10 As shown, a feeding and pressing integrated mechanism for a sheet feeder includes: The frame 1 includes two parallel side plates 101 extending longitudinally, and an end plate 102 extending laterally between the two side plates 101; the end plate 102 is located behind the side plates 101, and an arc-shaped motion guide groove 103 is formed in the middle of the front side of the two end plates 102. The connecting rod pressing assembly 2 includes a telescopic end of the pressing cylinder 201 mounted behind the end plate 102, which passes through the end plate 102 and extends between two side plates 101. The telescopic end is fitted with a hinge support 202, which extends laterally on both sides and is hinged to the rear end of a first transmission connecting rod 203 on both sides. The front end of the first transmission connecting rod 203 extends between two arc-shaped motion guide grooves 103. A laterally extending first pin 204 passes through the front end of the first transmission connecting rod 203, and the end of the first pin 204 extends into the arc-shaped motion guide groove 103 and is hinged. The rear end of the second transmission link 205 is connected to the front end of the second transmission link 205, and the pressure plate 206 is installed on the front end of the second transmission link 205. The rear end of the second transmission link 205 is then concentrically hinged to the lower end of an upper arc motion guide link 207. The upper end of the upper arc motion guide link 207 is hinged to the side plate 101 and is located at the center of the arc of the arc motion guide groove 103. The middle part of the second transmission link 205 is hinged to the front end of a lower arc motion guide link 208, and the rear end of the lower arc motion guide link 208 is hinged to the side plate 101 and is located below the arc motion guide groove 103. The suction cup lifting cylinder 3 is installed inside the frame 1, and a space is reserved between it and the side plate 101 for the first transmission connecting rod 203 to pass through; its lower telescopic end is installed on the suction cup frame 301, and suction cups 302 are distributed at intervals on the bottom surface of the suction cup frame 301.

[0032] With this structure, the suction cup lifting cylinder 3 and the connecting rod pressing assembly 2 are integrated and installed on the frame 1. As long as the frame 1 moves, the suction cup lifting cylinder 3 and the connecting rod pressing assembly 2 can be controlled to move synchronously. Moreover, guided by the arc motion guide groove 103, the upper arc motion guide connecting rod 207 and the lower arc motion guide connecting rod 208, the second transmission connecting rod 205 rotates clockwise under the push of the first transmission connecting rod 203, so that the pressing plate 206 can press down. When the suction cup lifting cylinder 3 needs to pick up the material, the first transmission connecting rod 203 will retract under the control of the pressing cylinder 201. At this time, the second transmission connecting rod 205 will rotate counterclockwise under the guidance of the arc motion guide groove 103, the upper arc motion guide connecting rod 207 and the lower arc motion guide connecting rod 208, thereby lifting up. This can avoid affecting the movement path of the sheet material, so that the sheet material can move smoothly to the bottom of the suction cup frame 301 and be attracted by the suction cup 302.

[0033] In this embodiment, the frame 1 is mounted on the longitudinal moving platform 4, one side of the longitudinal moving platform 4 is mounted on the longitudinal guide rail 5, and the other side is mounted on the drive belt assembly 6, which is mounted on the feeder 7.

[0034] With this structure, a single longitudinal moving platform 4 is sufficient to move the frame 1; In this embodiment, the upper end of the upper arc motion guide link 207 is hinged to the second pin 209; the second pin 209 passes through the side plate 101.

[0035] This structure facilitates the stable rotation of the upper circular arc guiding link 207.

[0036] In this embodiment, the suction cup holder 301 is arranged with the suction cups 302 at the four corners of a rectangle.

[0037] This structure, because the sheet material is rectangular, allows for the stable adsorption of the rectangular sheet material by arranging the suction cups 302.

[0038] In this embodiment, a sheet material traction machine 8 is installed at the front end of the feeder 7.

[0039] With this structure, the sheet material traction machine 8 ejects sheet material at the front end of the feeder 7, and then the suction cup lifting cylinder 3 moves to a position close to the sheet material traction machine 8 to absorb the sheet material.

[0040] In this embodiment, the angle formed by the second transmission link 205 and the upper arc motion guide link 207 after they are collinear with the horizontal plane is the installation angle between the pressure plate 206 and the second transmission link 205.

[0041] This structure ensures that the bottom surface of the pressure plate 206 coincides with the horizontal plane during tableting, thereby increasing the contact area with the tablet material.

[0042] In this embodiment, a set of suction cup lifting cylinders 3, suction cup frame 301 and suction cup 302 are also provided on the rear side of the pressing cylinder 201.

[0043] With this structure, for longer sheets, more suction cups can be arranged at the rear. These suction cups can be synchronized with the suction cups at the front, or a single cylinder can be used to control the lifting.

[0044] like Figure 8 As shown, at the initial position, the horizontal distance between BC and E is 5.53 mm, and the height of point E relative to point C on the frame is 8.66 mm.

[0045] like Figure 9 As shown, at the pressing position, the cylinder horizontally pushes the transmission linkage, causing point B to move to the right until AB'' is parallel to BD''. At this point, the horizontal distance between B'' and C is 18.04mm, and the height of point E relative to point C on the frame is -57.02mm. This linkage has two advantages: 1. The cylinder stroke is 18.04 + 5.53 = 23.57. The height difference between points E and E'' reaches 65.68, which increases the cylinder stroke by 2.78 times.

[0046] 2. Point B'' is the dead point of the linkage system. E'' is subjected to a reaction force of 5 kgf from the pressure diaphragm, but the cylinder thrust is almost zero, resulting in a significant force-saving effect.

[0047] This invention utilizes a linkage structure to lift the pressure plate upwards for clearance, eliminating the need for the suction cup to be adjusted backwards. This facilitates the integrated installation of the pressure and feeding mechanisms, improves space utilization, reduces the moving and lifting distances of the feeding mechanism, and makes sheet material transportation more stable. This reduces the risk of excessive swaying of the suspended sheet material affecting feeding. Furthermore, the invention's rational design of the linkage, utilizing its dead point position, greatly increases the pressure of the pressure plate, enhancing the pressure effect.

[0048] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A feeding and pressing integrated mechanism for a sheet material feeder, characterized by include: The frame (1) includes two parallel side plates (101) extending longitudinally and an end plate (102) extending laterally between the two side plates (101); the end plate (102) is located behind the side plates (101), and an arc-shaped motion guide groove (103) is provided in the middle of the front side of the two end plates (102). The connecting rod pressing assembly (2) includes a pressing cylinder (201) mounted behind the end plate (102). The telescopic end of the pressing cylinder (201) passes through the end plate (102) and extends between two side plates (101). The telescopic end is fitted with a hinge support (202). The hinge support (202) extends laterally on both sides and is hinged to the rear end of a first transmission connecting rod (203) on both sides. The front end of the first transmission connecting rod (203) extends between two arc-shaped motion guide grooves (103). The front end of the first transmission connecting rod (203) is fitted with a laterally extending first pin (204). The end of the first pin (204) extends into the arc-shaped motion guide groove (103). 03) The rear end of the second transmission link (205) is hinged, and the front end of the second transmission link (205) is fitted with a pressure plate (206); the rear end of the second transmission link (205) is then concentrically hinged to the lower end of an upper arc motion guide link (207); the upper end of the upper arc motion guide link (207) is hinged to the side plate (101) and located at the center of the arc motion guide groove (103); the middle part of the second transmission link (205) is hinged to the front end of the lower arc motion guide link (208), and the rear end of the lower arc motion guide link (208) is hinged to the side plate (101) and located below the arc motion guide groove (103); The suction cup lifting cylinder (3) is installed inside the frame (1), and a space is reserved between it and the side plate (101) for the first transmission connecting rod (203) to pass through; its lower telescopic end is installed on the suction cup frame (301), and suction cups (302) are distributed at intervals on the bottom surface of the suction cup frame (301).

2. The feeding and pressing integrated mechanism for sheet material feeder according to claim 1, characterized in that The frame (1) is mounted on a longitudinal moving platform (4), one side of which is mounted on a longitudinal guide rail (5); the other side is mounted on a drive belt assembly (6), which is mounted on a feeder (7).

3. The feeding and pressing integrated mechanism for sheet material feeder according to claim 1, characterized in that The upper end of the upper arc motion guide link (207) is hinged to the second pin (209); the second pin (209) passes through the side plate (101).

4. The feeding and pressing integrated mechanism for sheet material feeder according to claim 1, characterized in that The suction cup holder (301) is arranged with suction cups (302) at the four corners of a rectangle.

5. The feeding and pressing integrated mechanism for sheet material feeder according to claim 2, characterized in that The front end of the feeder (7) is equipped with a sheet traction machine (8).

6. The integrated feeding and pressing mechanism for a sheet feeder according to claim 1, characterized in that... The angle between the second transmission link (205) and the upper arc motion guide link (207) and the horizontal plane after they are collinear is the installation angle between the pressure plate (206) and the second transmission link (205).

7. The integrated feeding and pressing mechanism for a sheet feeder according to claim 1, characterized in that... A set of suction cup lifting cylinders (3), suction cup frame (301) and suction cup (302) are also provided on the rear side of the pressing cylinder (201).

Images