An ejection feeding system for stacked workpieces

Abstract

A workpiece stacking ejection feeding system includes a material box, a clamping mechanism, and an ejection mechanism. The material box contains multiple stacked workpieces, and an ejection channel is provided at the bottom of the material box. The clamping mechanism includes a clamping cylinder, a connecting rod, a liner, and a pressure plate. One end of the clamping cylinder is rotatably connected to the material box, and the other end is rotatably connected to the connecting rod, which is rotatably connected to the material box. A liner is fixed to the end of the connecting rod away from the clamping cylinder. The ejection mechanism includes an ejection slide plate and an ejection cylinder. The piston rod of the ejection cylinder is fixedly connected to the ejection slide plate, which is located on one side of the ejection channel. The liner and the pressure plate are connected by bolts and nuts, and a spring is fitted onto the bolt in the gap between the liner and the pressure plate. A clamping channel is provided on the side of the material box near the pressure plate, and the bottom of the pressure plate is positioned above the bottommost workpiece in the material box. In this application, the clamping cylinder, through the connecting rod and the liner, drives the pressure plate through the clamping channel to clamp the workpiece above the bottommost workpiece in the material box.

Description

Technical Field

[0001] This application relates to the field of stacking and feeding equipment technology, and in particular to an ejection and feeding system for stacked workpieces. Background Technology

[0002] In modern industrial production, automated material handling systems are a crucial component of the production line, and their performance directly affects the efficiency, stability, and labor costs of the entire line. For sheet-like, disc-shaped, or specifically shaped workpieces, stacking is often used to save space. Traditional material handling methods rely heavily on manual handling of each piece or the use of simple vibratory feeders or hoppers, which suffer from high labor intensity, low efficiency, and a tendency to jam or damage workpieces.

[0003] While some existing automated feeding devices achieve a certain degree of automatic pushing, they often require replacing the entire hopper or making complex mechanical adjustments when dealing with workpieces of different sizes and specifications. This results in poor adaptability and makes it difficult to meet the current trend of flexible production with small batches and multiple varieties. In addition, most devices lack effective and flexible constraints on upper workpieces when pushing the bottom workpieces, which can easily lead to jamming due to friction or slight deformation between workpieces, or multiple workpieces being pushed out simultaneously.

[0004] Therefore, we propose an ejector feeding system for stacked workpieces.

[0005] Application content

[0006] In view of the shortcomings of the existing production technology, the applicant provides a workpiece stacking ejection feeding system, in which a clamping cylinder drives a pressure plate through a connecting rod and a liner to clamp the workpiece above the bottom workpiece in the material box.

[0007] The technical solution adopted in this application is as follows:

[0008] An ejector feeding system for stacked workpieces includes:

[0009] The material box contains multiple workpieces stacked together, and the bottom of the material box is provided with an ejection channel;

[0010] The clamping mechanism includes a clamping cylinder, a connecting rod, a liner, and a pressure plate. One end of the clamping cylinder is rotatably connected to the material box, and the other end of the clamping cylinder is rotatably connected to the connecting rod. The connecting rod is rotatably connected to the material box, and the liner is fixed to the end of the connecting rod away from the clamping cylinder.

[0011] The ejection mechanism includes an ejection slide plate and an ejection cylinder. The piston rod of the ejection cylinder is fixedly connected to the ejection slide plate, and the ejection slide plate is located on one side of the ejection channel.

[0012] The liner and the pressure plate are connected by bolts and nuts, and there is a gap between the liner and the pressure plate. A spring is fitted into the bolt in the gap between the liner and the pressure plate.

[0013] A pressing channel is provided on the side of the material box near the pressure plate. The bottom of the pressure plate is above the bottom workpiece in the material box. The pressing cylinder drives the pressure plate through the pressing channel via the connecting rod and the liner to press the workpiece above the bottom workpiece in the material box.

[0014] Its further features are:

[0015] The material box is fixed to the top of the mounting base, and the ejection cylinder is fixed to the bottom of the mounting base.

[0016] The material box includes a base plate, two side plates, and four L-shaped baffles. The base plate has a first oblong hole on both sides of the top, and a first screw passes through the first oblong hole to fix the base plate and the side plate. The two side plates have a second oblong hole on both sides, and a second screw passes through the second oblong hole to fix the side plate and the L-shaped baffle. The length and width of the material box can be adjusted, making it suitable for workpieces of different specifications.

[0017] The ejection mechanism also includes a slide rail and a slider. The slide rail is fixed to the top of the mounting base, and the slider is slidably mounted on the slide rail. The bottom of the ejection slide plate is fixedly connected to the slider.

[0018] The height of the ejection channel is H, and the height of a workpiece is h, where h < H < 1.5h.

[0019] The inner side of the L-shaped baffle is provided with a low-friction wear-resistant layer.

[0020] The pressure plate has a low-friction, wear-resistant layer on the side near the material box.

[0021] Sensors are installed at both the top and bottom of the material box.

[0022] The material box is equipped with a limit screw on the side near the connecting rod to limit the downward stroke of the pressure plate.

[0023] An extension plate is provided on the side of the base plate away from the ejector plate.

[0024] The beneficial effects of this application are as follows:

[0025] This application features a compact and reasonable structure, and is easy to operate. The clamping cylinder extends, driving a connecting rod to rotate. The connecting rod moves the liner and pressure plate towards the material box, causing the pressure plate to press down on the workpiece above the bottom layer of workpieces in the material box. When the ejector cylinder retracts, it moves the ejector slide towards the ejection channel of the material box, ejecting the bottom layer of workpieces. The ejector cylinder then extends, causing the ejector slide to reset. The clamping cylinder retracts, driving the connecting rod to rotate. The connecting rod moves the liner and pressure plate away from the material box, and the pressure plate no longer presses down on the workpiece. The workpiece falls, and the above operation is repeated to achieve continuous ejection of workpieces.

[0026] In addition, this application also has the following advantages:

[0027] (1) When the size of the material box needs to be adjusted, loosen the first screw and the second screw, move the side plate to the appropriate position, then tighten the first screw, adjust the L-shaped baffle to the appropriate position, and then tighten the second screw; the material box can be quickly adjusted in size, thus making it suitable for workpieces of different sizes.

[0028] (2) A low-friction, wear-resistant layer is provided on the side of the pressure plate near the material box to protect the workpiece and prevent it from being crushed when pressed; a low-friction, wear-resistant layer is provided on the inner side of the L-shaped baffle. Utilizing its extremely low coefficient of friction, the frictional resistance when the workpiece falls is greatly reduced, effectively preventing material jamming.

[0029] (3) Sensors are installed on the material box, with sensors at the bottom and top of the box. The sensor at the bottom of the box is used to detect whether there is a workpiece at the very bottom. The sensor at the top of the box is used to detect whether material needs to be added to the box.

[0030] (4) The preload of the spring can be adjusted by adjusting the nut, thereby adjusting the clamping force of the pressure plate on the workpiece to adapt to workpieces of different weights and surface characteristics.

[0031] (5) The ejector cylinder adopts a reverse installation form, which is compact and saves equipment space. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this application.

[0033] Figure 2 for Figure 1 The main view.

[0034] Figure 3 for Figure 2 A bottom view.

[0035] Figure 4 This is a schematic diagram of the clamping mechanism in this application.

[0036] Figure 5 for Figure 4 Side view.

[0037] Figure 6 This is a schematic diagram of the material box and sensor in this application.

[0038] Figure 7 This is a schematic diagram of the pressure plate clamping the workpiece according to this application.

[0039] Figure 8 This is a schematic diagram of the pressure plate of this application being released and not pressing the workpiece.

[0040] The components include: 1. Material box; 2. Clamping mechanism; 3. Ejection mechanism; 4. Workpiece; 5. Sensor; 6. Mounting base;

[0041] 101. Base plate; 102. Side plate; 103. L-shaped baffle; 104. First oblong hole; 105. Second oblong hole; 106. First screw; 107. Second screw; 108. Ejection channel;

[0042] 201. Clamping cylinder; 202. Connecting rod; 203. Liner plate; 204. Pressure plate; 205. Bolt; 206. Nut; 207. Spring;

[0043] 301. Ejector slide; 302. Ejector cylinder; 303. Slide rail; 304. Slider. Detailed Implementation

[0044] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0045] like Figures 1-8 As shown, a workpiece stacking ejection feeding system includes a material box 1, a clamping mechanism 2, an ejection mechanism 3, and a sensor 5.

[0046] The material box 1 is fixed on the top of the mounting base 6, and the ejection mechanism 3 is set on the mounting base 6, with the ejection mechanism 3 located on one side of the material box 1.

[0047] The material box 1 includes a bottom plate 101, a side plate 102, and an L-shaped baffle 103.

[0048] In one embodiment, two side plates 102 are provided, and multiple first oblong holes 104 are provided on both sides of the base plate 101. First screws 106 pass through the first oblong holes 104 to fix the base plate 101 and the side plates 102. Each side plate 102 has an L-shaped baffle 103 on both sides, and multiple second oblong holes 105 are provided on the side plate 102. Second screws 107 pass through the second oblong holes 105 to fix the side plate 102 and the L-shaped baffle 103.

[0049] When the size of the material box 1 needs to be adjusted, loosen the first screw 106 and the second screw 107, move the side plate 102 to the appropriate position, then tighten the first screw 106, adjust the L-shaped baffle 103 to the appropriate position, and then tighten the second screw 107.

[0050] The bottom of the material box 1 is provided with an ejection channel 108. The ejection channel 108 is in the same ejection direction as the ejection mechanism 3. The height of the ejection channel 108 is H, and the height of a workpiece 4 is h, where h < H < 1.5h.

[0051] Specifically, the ejection channel 108 is located at the bottom of the L-shaped baffle 103.

[0052] The material box 1 can be quickly adjusted in size to accommodate workpieces 4 of different sizes.

[0053] The ejection mechanism 3 includes an ejection slide plate 301, an ejection cylinder 302, a slide rail 303, and a slider 304. The ejection cylinder 302 is fixed to the bottom of the mounting base 6. The ejection cylinder 302 adopts a reverse installation form, which is compact and saves equipment space.

[0054] The piston rod of the ejector cylinder 302 is fixedly connected to the ejector slide plate 301, which is slidably mounted on the top of the mounting base 6.

[0055] In one embodiment, a slide rail 303 is provided on the top of the mounting base 6, and a slider 304 is slidably mounted on the slide rail 303. The slider 304 is fixedly connected to the bottom of the ejector plate 301. The base plate 101 has a placement groove, and one side of the slide rail 303 is located in the placement groove of the base plate 101. Through the cooperation of the slide rail 303 and the slider 304, a high-precision, low-friction linear guide is provided for the ejector plate 301, ensuring a smooth and wobbly pushing process.

[0056] When the ejector cylinder 302 retracts, it drives the ejector slide plate 301 to move toward the ejector channel 108 of the material box 1. The ejector slide plate 301 ejects one workpiece 4 from the bottom layer of the material box 1. Then the ejector cylinder 302 extends, driving the ejector slide plate 301 back, so that the ejector slide plate 301 moves outside the material box 1.

[0057] In one embodiment, an extension plate is provided on the side of the base plate 101 away from the ejection slide plate 301. When the workpiece 4 is ejected, the extension plate enables the workpiece 4 to smoothly and accurately transition and enter the next station.

[0058] The clamping mechanism 2 is installed on the material box 1 or the mounting base 6.

[0059] In one embodiment, the clamping mechanism 2 is disposed on the material box 1.

[0060] The clamping mechanism 2 includes a clamping cylinder 201, a connecting rod 202, a liner 203, a pressure plate 204, a bolt 205, a nut 206, and a spring 207.

[0061] One end of the clamping cylinder 201 is rotatably connected to the side plate 102, and the other end of the clamping cylinder 201 is rotatably connected to the connecting rod 202. The connecting rod 202 is rotatably connected to the side plate 102. A liner 203 is fixed to the end of the connecting rod 202 away from the clamping cylinder 201. A pressure plate 204 is connected to the liner 203 by bolts 205 and nuts 206. There is a gap between the liner 203 and the pressure plate 204. A spring 207 is fitted into the gap between the liner 203 and the pressure plate 204 by bolts 205.

[0062] The pressure plate 204 has a low-friction wear-resistant layer on the side near the material box 1 to protect the workpiece 4 and prevent it from being crushed when it is pressed.

[0063] The bottom of the pressure plate 204 is located above the bottom workpiece 4 in the material box 1. A pressing channel is provided on the side of the material box 1 near the pressure plate 204. The pressure plate 204 presses the workpiece 4 above the bottom workpiece 4 in the material box 1 through the pressing channel.

[0064] Specifically, the space between the two L-shaped baffles 103 near the pressure plate 204 is the pressing channel.

[0065] The pressing cylinder 201 extends, driving the connecting rod 202 to rotate, which in turn drives the liner 203 and the pressure plate 204 to move closer to the material box 1. The pressure plate 204 presses the workpiece 4 above the bottom workpiece 4 in the material box 1.

[0066] The preload of the spring 207 can be adjusted by adjusting the nut 206, thereby adjusting the clamping force of the pressure plate 204 on the workpiece 4 to accommodate workpieces 4 with different weights and surface characteristics.

[0067] In one embodiment, the length of the first oblong hole 104 is 200mm-300mm, and the length of the second oblong hole 105 is 150mm-250mm.

[0068] In one embodiment, the inner side of the L-shaped baffle 103 is provided with a low-friction, wear-resistant layer. Utilizing its extremely low coefficient of friction, the frictional resistance of the workpiece 4 during its descent is greatly reduced, effectively preventing jamming.

[0069] Sensor 5 is installed on the material box 1. Sensor 5 is installed at the bottom and top of the material box 1 respectively. Sensor 5 at the bottom of the material box 1 is used to detect whether there is a workpiece 4 at the bottom of the material box 1.

[0070] The sensor 5 on the top of the material box detects whether it is necessary to add material to the material box 1.

[0071] In one embodiment, sensor 5 is an optical fiber sensor.

[0072] In one embodiment, in the initial state, one end of the ejector slide 301 is in the ejector channel 108 of the material box 1 and does not contact the workpiece 4 in the material box 1.

[0073] In one embodiment, a limit screw is provided on the side of the material box 1 near the connecting rod 202 to limit the downward stroke of the pressure plate 204.

[0074] In practical use, the ejector slide 301 is outside the material box 1. Multiple workpieces 4 are placed into the material box 1. The clamping cylinder 201 extends, driving the connecting rod 202 to rotate. The connecting rod 202 drives the liner 203 and the pressure plate 204 to move towards the material box 1, so that the pressure plate 204 presses down on the workpiece 4 above the bottom workpiece 4 in the material box 1. When the ejector cylinder 302 retracts, it drives the ejector slide 301 to move towards the ejection channel 108 of the material box 1, ejecting the bottom workpiece 4 from the material box 1. The ejector cylinder 302 extends, causing the ejector slide 301 to reset. The clamping cylinder 201 retracts, driving the connecting rod 202 to rotate. The connecting rod 202 drives the liner 203 and the pressure plate 204 to move away from the material box 1, and the pressure plate 204 no longer presses down on the workpiece 4. The workpiece 4 falls down. Repeating the above operation can achieve continuous ejection of workpieces 4.

[0075] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A workpiece stacking ejection feeding system, characterized in that, include: Material box (1), multiple workpieces (4) stacked together are placed in the material box (1), and an ejection channel (108) is provided at the bottom of the material box (1). The clamping mechanism (2) includes a clamping cylinder (201), a connecting rod (202), a liner (203) and a pressure plate (204). One end of the clamping cylinder (201) is rotatably connected to the material box (1), and the other end of the clamping cylinder (201) is rotatably connected to the connecting rod (202). The connecting rod (202) is rotatably connected to the material box (1), and the liner (203) is fixed at the end of the connecting rod (202) away from the clamping cylinder (201). The ejection mechanism (3) includes an ejection slide plate (301) and an ejection cylinder (302). The piston rod of the ejection cylinder (302) is fixedly connected to the ejection slide plate (301), and the ejection slide plate (301) is located on one side of the ejection channel (108). The liner (203) and the pressure plate (204) are connected by bolts (205) and nuts (206). There is a gap between the liner (203) and the pressure plate (204). A spring (207) is sleeved in the gap between the bolt (205) and the pressure plate (204). The material box (1) is provided with a pressing channel on the side near the pressure plate (204). The bottom of the pressure plate (204) is above the bottom workpiece (4) in the material box (1). The pressing cylinder (201) drives the pressure plate (204) through the pressing channel via the connecting rod (202) and the liner (203) to press the workpiece (4) above the bottom workpiece (4) in the material box (1).

2. The workpiece stacking ejection feeding system as described in claim 1, characterized in that: The material box (1) is fixed on the top of the mounting base (6), and the ejection cylinder (302) is fixed on the bottom of the mounting base (6).

3. The workpiece stacking ejection feeding system as described in claim 2, characterized in that: The material box (1) includes a base plate (101), two side plates (102) and four L-shaped baffles (103). The top two sides of the base plate (101) are provided with first waist-shaped holes (104). The first screw (106) passes through the first waist-shaped holes (104) to fix the base plate (101) and the side plates (102). The two sides of the two side plates (102) are provided with second waist-shaped holes (105). The second screw (107) passes through the second waist-shaped holes (105) to fix the side plates (102) and the L-shaped baffles (103). The length and width of the material box (1) can be adjusted, and it is suitable for workpieces (4) of different specifications.

4. The workpiece stacking ejection feeding system as described in claim 2, characterized in that: The ejection mechanism (3) also includes a slide rail (303) and a slider (304). The slide rail (303) is fixed on the top of the mounting base (6), and the slider (304) is slidably disposed on the slide rail (303). The bottom of the ejection slide plate (301) is fixedly connected to the slider (304).

5. The workpiece stacking ejection feeding system as described in claim 1, characterized in that: The height of the ejection channel (108) is H, and the height of a workpiece (4) is h, where h < H < 1.5h.

6. The workpiece stacking ejection feeding system as described in claim 3, characterized in that: The inner side of the L-shaped baffle (103) is provided with a low-friction wear-resistant layer.

7. The workpiece stacking ejection feeding system as described in claim 6, characterized in that: The pressure plate (204) has a low-friction wear-resistant layer on the side near the material box (1).

8. The workpiece stacking ejection feeding system as described in claim 1, characterized in that: Sensors (5) are provided at the top and bottom of the material box (1).

9. The workpiece stacking ejection feeding system as described in claim 1, characterized in that: The material box (1) is provided with a limit screw on the side near the connecting rod (202) to limit the downward stroke of the pressure plate (204).

10. The workpiece stacking ejection feeding system as described in claim 3, characterized in that: An extension plate is provided on the side of the base plate (101) away from the ejector plate (301).

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