A feeder two-suction nozzle overall height adjustment device

Abstract

This invention relates to a height adjustment device for a feeder two-nozzle assembly. The device is mounted on a wall-mounted frame and is used to adjust the height of the entire two-nozzle structure. It includes a horizontal sliding mechanism and a vertical sliding mechanism. The two nozzles are mounted on the horizontal sliding mechanism, which in turn is mounted on the vertical sliding mechanism. The vertical sliding mechanism is mounted on the wall-mounted frame. The vertical sliding mechanism drives the horizontal sliding mechanism and the two nozzles to move vertically, while the horizontal sliding mechanism drives the two nozzles to move horizontally. Compared with existing technologies, this invention has advantages such as effectively adjusting the height of the two nozzles and strong applicability.

Description

Technical Field

[0001] This invention relates to the field of suction feeder technology, and in particular to a device for adjusting the overall height of the two suction nozzles of a feeder. Background Technology

[0002] Flatbed die-cutting machines or hot stamping machines suitable for processing thin paper mostly use top-suction feeders to separate and transport the paper to be processed. The general workflow is as follows: a stack of paper to be processed is placed on the paper feeding and lifting platform. The lifting device raises the top surface of the paper stack to a suitable position relative to the bottom of the feeder. Then, the feeder's first suction nozzle (lifting nozzle) picks up the tail of the paper, separating the top sheet from the bottom stack. After separation, the feeder's second suction nozzle (transporting nozzle) immediately picks up the middle of the paper. After the first suction nozzle (lifting nozzle) releases, the second suction nozzle (transporting nozzle) moves forward while still holding the paper, delivering it to the conveyor belt. The second suction nozzle (transporting nozzle) then releases the paper and moves backward to pick up the second sheet, and this cycle repeats continuously to achieve continuous paper feeding.

[0003] In actual production at customer factories, paper can deform due to various factors such as temperature, humidity, upstream printing processes, and handling, resulting in an uneven surface on the top of the paper stack. The first suction nozzle (lifting nozzle) merely separates the paper and is located at the very end of the paper feed; this can be compensated for by adjusting the overall height of the feeder head. However, the second suction nozzle (conveyor nozzle) is located in the middle of the paper feed. If the flatness error in the middle of the paper is significant, the second suction nozzle (conveyor nozzle) cannot properly hold the paper, causing the paper to skew or fall off during movement, affecting production.

[0004] Traditionally, most machines design the auxiliary suction nozzles on either side of the suction nozzle fixing rod to be height adjustable, while the main suction nozzle in the middle of the fixing rod is not adjustable. If the machine encounters paper with significant flatness errors in the middle, the main suction nozzle in the middle cannot hold the paper well. Operators typically need to manually adjust the flatness of the paper surface by inserting wedge-shaped wooden blocks into the paper stack. Alternatively, they can reduce the machine's operating speed to increase the contact time between the suction nozzle and the paper surface, thus stabilizing the paper. Both of these methods significantly impact actual production efficiency. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art and provide a feeder two-nozzle overall height adjustment device that effectively adjusts the height of the two-nozzle and has strong applicability.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A feeder two-nozzle overall height adjustment device is disclosed. This device is mounted on a wall panel frame and is used to adjust the overall height of the two-nozzle structure. The adjustment device includes a horizontal sliding mechanism and a vertical sliding mechanism. The two-nozzle is mounted on the horizontal sliding mechanism; the horizontal sliding mechanism is mounted on the vertical sliding mechanism; the vertical sliding mechanism is mounted on the wall panel frame; the vertical sliding mechanism drives the horizontal sliding mechanism and the two-nozzle to move vertically; the horizontal sliding mechanism drives the two-nozzle to move horizontally.

[0008] Preferably, the vertical sliding mechanism includes a lifting slide, a lead screw drive unit, a fixed plate, and a lead screw; the fixed plate is fixed on the wall panel frame; the lead screw is mounted on the fixed plate; the lead screw drive unit is connected to the lead screw; the lifting slide is connected to the lead screw, and the lifting slide is provided with a thread that matches the lead screw.

[0009] More preferably, the vertical sliding mechanism is provided with a guide key; the guide key is fixed to the wall panel frame; and the lifting slide is slidably connected to the guide key.

[0010] More preferably, the lead screw drive unit is a handwheel.

[0011] More preferably, the handwheel is connected to the lead screw via a cylindrical pin.

[0012] More preferably, the lead screw drive unit is a motor; the lead screw is connected to the output shaft of the motor.

[0013] Preferably, the horizontal sliding mechanism includes a linear guide rail, a linear guide rail slide, a movable seat, and a movable seat drive unit; the linear guide rail is fixed on the vertical sliding mechanism; the linear guide rail slide is mounted on the linear guide rail and is slidably connected to the linear guide rail; the movable seat is fixedly connected to the linear guide rail slide; the movable seat drive unit is mounted on the wall panel frame; and the movable seat is connected to the movable seat drive unit.

[0014] More preferably, the moving seat drive unit is a flat-bottomed cam follower; the flat-bottomed cam follower is mounted on the wall panel frame; the moving seat is connected to the flat-bottomed cam follower.

[0015] More preferably, the flat-bottomed cam follower includes a cam and a return spring for ensuring that the cam is in close contact with the movable seat; the cam is mounted on the wall panel frame; the cam is in close contact with the movable seat; one end of the return spring is fixed to the wall panel frame, and the other end is fixed to the movable seat.

[0016] More preferably, the moving seat drive unit includes a swing cam follower; the swing cam follower is installed between the flat-bottomed cam follower and the moving seat; the moving seat is connected to the moving seat through the swing cam follower.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] I. Effective adjustment of the height of the two suction nozzles: The overall height adjustment device of the feeder two suction nozzles in this invention uses a lead screw drive unit to drive the lead screw to rotate in order to adjust the overall height of the two suction nozzles; at the same time, the cooperation of sliding keyway and guide key is used as a guide, which effectively ensures the adjustment of the height of the two suction nozzles.

[0019] 2. Strong applicability: The overall height adjustment device of the feeder nozzle in this invention adopts a modular structure, and the corresponding module can be replaced according to the specific application. For example, according to the degree of automation, the screw drive unit can be a low-power motor or other automated mechanical parts; or according to the horizontal movement stroke requirements, a swing cam follower can be set between the flat-bottomed cam follower and the moving seat. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall height adjustment device for the feeder nozzle in this invention.

[0021] The numbers in the diagram are as follows:

[0022] 1. Wall panel frame, 2. Lifting slide, 3. Guide key, 4. Linear guide rail, 5. Two suction nozzles, 6. Screw drive unit, 7. Fixed plate, 8. Screw, 9. Linear guide rail slide, 10. Moving seat, 11. Moving seat, 12. Return spring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] A feeder two-nozzle overall height adjustment device is provided. This device is mounted on a wall panel frame 1 and is used to adjust the overall height of the two-nozzle 5 structure. Its structure is as follows: Figure 1As shown, it includes a horizontal sliding mechanism and a vertical sliding mechanism. The two suction nozzles 5 are mounted on the horizontal sliding mechanism, which is mounted on the vertical sliding mechanism. The vertical sliding mechanism is mounted on the wall panel frame 1. The vertical sliding mechanism drives the horizontal sliding mechanism and the two suction nozzles 5 to move in the vertical direction, and the horizontal sliding mechanism drives the two suction nozzles 5 to move in the horizontal direction.

[0025] The horizontal sliding mechanism and the vertical sliding mechanism are described below:

[0026] I. Vertical sliding mechanism

[0027] The vertical sliding mechanism includes a lifting slide 2, a lead screw drive unit 6, a fixed plate 7, and a lead screw 8. The fixed plate 7 is fixed on the wall panel frame 1, the lead screw 8 is installed on the fixed plate 7, the lead screw drive unit 6 is connected to the lead screw 8, the lifting slide 2 is connected to the lead screw 8, and the lifting slide 2 is provided with a thread that matches the lead screw 8.

[0028] The vertical sliding mechanism is also equipped with a guide key 3, which is fixed to the wall panel frame 1, and the lifting slide 2 is slidably connected to the guide key 3.

[0029] In this embodiment, the lead screw drive unit 6 is a handwheel or a low-power motor. The handwheel is connected to the lead screw 8 via a cylindrical pin, and the output shaft of the motor is connected to the lead screw 8. The handwheel can also be extended to the outside of the machine via other mechanical parts for convenient operation.

[0030] II. Horizontal Sliding Mechanism

[0031] It includes a linear guide rail 4, a linear guide rail slide 9, a movable seat 10, and a movable seat drive unit. The linear guide rail 4 is fixed on the vertical sliding mechanism. The linear guide rail slide 9 is installed on the linear guide rail 4 and is slidably connected to the linear guide rail 4. The movable seat 10 is fixedly connected to the linear guide rail slide 9. The movable seat drive unit is installed on the wall panel frame 1 and is connected to the movable seat drive unit.

[0032] In this embodiment, the moving seat drive unit is a flat-bottomed cam follower, which is mounted on the wall panel frame. The moving seat 11 is connected to the flat-bottomed cam follower. The flat-bottomed cam follower includes a cam 11 and a return spring 12 for ensuring that the cam 11 is in close contact with the moving seat 10. The cam 11 is mounted on the wall panel frame 1 and is in close contact with the moving seat 10. One end of the return spring 12 is fixed to the wall panel frame 1, and the other end is fixed to the moving seat 10.

[0033] This embodiment introduces the power source for the horizontal movement of the two-suction nozzle using a flat-bottomed cam follower. In practice, the appropriate drive method can be selected according to the entire stroke of the two-suction movement. If the stroke is too large, the push stroke and return stroke of the cam will also become very large. In this case, the swing cam follower can be placed between the swing cam follower and the moving seat 10 to reduce the push stroke and return stroke of the cam and obtain a suitable two-suction movement curve.

[0034] The working principle of the above-mentioned feeder two-nozzle overall height adjustment device is as follows:

[0035] The fixed plate 7 is screwed to the wall panel frame 1 and serves as a support for the lead screw 8, fixing its horizontal and vertical position and allowing only the lead screw 8 to rotate. The handwheel is connected to the lead screw 8 with a cylindrical pin, and manually turning the handwheel 6 rotates the lead screw 8. The guide key 3 is screwed to the wall panel frame 1 and serves only as a guide for the lifting slide 2. The upper end of the lifting slide 2 has a threaded hole for connection to the lead screw 8, and the lower end is connected to the linear guide rail 4. The two suction nozzles 5, the linear guide rail slide 9, and the moving seat 10 are connected together to form the two suction nozzle moving assembly, which is connected to the linear guide rail 4 via the linear guide rail slide 9, allowing the assembly to move horizontally back and forth along the linear guide rail 4. When the handwheel is turned, the lead screw 8 controls the lifting slide 2 and the linear guide rail 4 to move up and down, thereby adjusting the height of the entire two suction nozzle assembly. The fixed cam rotates in a plane to push the moving seat 10, controlling the horizontal back and forth movement of the entire two suction nozzle assembly. The return spring serves as the return spring for the reciprocating motion of the two-suction nozzle assembly. The spring tension always keeps the moving seat 10 in contact with the cam.

[0036] This structure allows for free adjustment of the nozzle's height without altering the movement pattern of the second suction.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A feeder two-nozzle overall height adjustment device, the device being installed on a wall panel frame (1) for adjusting the overall height of the two-nozzle (5) structure, characterized in that, The adjustment device includes a horizontal sliding mechanism and a vertical sliding mechanism; the two suction nozzles (5) are mounted on the horizontal sliding mechanism; the horizontal sliding mechanism is mounted on the vertical sliding mechanism; the vertical sliding mechanism is mounted on the wall panel frame (1); the vertical sliding mechanism drives the horizontal sliding mechanism and the two suction nozzles (5) to move in the vertical direction; the horizontal sliding mechanism drives the two suction nozzles (5) to move in the horizontal direction. The vertical sliding mechanism includes a lifting slide (2), a screw drive unit (6), a fixed plate (7), and a screw (8); the fixed plate (7) is fixed on the wall panel frame (1); the screw (8) is installed on the fixed plate (7); the screw drive unit (6) is connected to the screw (8); the lifting slide (2) is connected to the screw (8), and the lifting slide (2) is provided with a thread that matches the screw (8); the vertical sliding mechanism is provided with a guide key (3); the guide key (3) is fixed on the wall panel frame (1); the lifting slide (2) and the guide key (3) are slidably connected; the screw drive unit (6) is a handwheel.

2. The feeder nozzle overall height adjustment device according to claim 1, characterized in that, The handwheel is connected to the lead screw (8) via a cylindrical pin.

3. The feeder nozzle overall height adjustment device according to claim 1, characterized in that, The lead screw drive unit (6) is a motor; the lead screw (8) is connected to the output shaft of the motor.

4. The overall height adjustment device for a feeder nozzle according to claim 1, characterized in that, The horizontal sliding mechanism includes a linear guide rail (4), a linear guide rail slide (9), a movable seat (10), and a movable seat drive unit; the linear guide rail (4) is fixed on the vertical sliding mechanism; the linear guide rail slide (9) is installed on the linear guide rail (4), and the linear guide rail slide (9) is slidably connected to the linear guide rail (4); the movable seat (10) is fixedly connected to the linear guide rail slide (9); the movable seat drive unit is installed on the wall panel frame (1); the movable seat (10) is connected to the movable seat drive unit.

5. The feeder nozzle overall height adjustment device according to claim 4, characterized in that, The moving seat drive unit is a flat-bottomed cam follower; the flat-bottomed cam follower is mounted on the wall panel frame; the moving seat (10) is connected to the flat-bottomed cam follower.

6. The feeder nozzle overall height adjustment device according to claim 5, characterized in that, The flat-bottomed cam follower includes a cam (11) and a return spring (12) for ensuring that the cam (11) is in close contact with the moving seat (10); the cam (11) is mounted on the wall panel frame (1); the cam (11) is in close contact with the moving seat (10); one end of the return spring (12) is fixed on the wall panel frame (1), and the other end is fixed on the moving seat (10).

7. The feeder nozzle overall height adjustment device according to claim 5, characterized in that, The moving seat drive unit includes a swing cam follower; the swing cam follower is installed between the flat-bottomed cam follower and the moving seat (10); the moving seat (10) is connected to the moving seat (10) through the swing cam follower.

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