A metal sheet material feeder

Abstract

This invention relates to the field of feeding technology, specifically to a metal sheet feeder, comprising a vertical support frame on which a feeding unit, two pairs of tensioning units, and a feeding unit are mounted. In this invention, the top plate contacts the inner core arm of the steel coil, thereby fixing the steel coil to the central axis of the rotating roller, limiting the rotational direction of the steel coil. After fixing, the top plate is tightly fitted to the steel coil, which in turn drives the bottom pressure block and push plate to move inward. A synchronous rod drives the locking block to engage with the side wall of the steel coil, thus limiting the axial movement of the steel coil. This simplifies steel coil installation and prevents displacement during feeding, making feeding safer. The tensioning unit drives the extrusion roller to maintain constant contact with the steel coil, reducing the possibility of the entire steel coil loosening. When the steel coil is placed on the feeding unit, a flat plate lifts the steel coil and allows it to be inserted into the rotating roller, simplifying operation and improving automation.

Description

Technical Field

[0001] This invention belongs to the field of feeding technology, and more specifically, relates to a metal sheet feeder. Background Technology

[0002] In the production process of precision rolled steel plates, metal sheets are usually required. Before use, the metal sheets are wound up to facilitate transportation. However, after transportation, the steel coils need to be restored to a horizontal state before they can be used.

[0003] Therefore, in the later stages, a feeder is needed to reverse the coiled steel coil and perform feeding operations. However, when the steel coil is installed on the feeder, it is found that the width of the coil is not the same. Each operation requires fixing the circumference of the steel coil first, and after fixing, the axial movement of the steel coil is also required for fixing. The operation is relatively complicated. Therefore, a feeder that is easy to fix is ​​proposed, thereby improving the efficiency of the metal sheet feeder. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A metal sheet feeder includes a vertical support frame, on which an installation unit, two pairs of tensioning units, and a feeding unit are mounted;

[0006] The installation unit includes a rotating roller, an adjusting motor is installed on the outer wall of the rotating roller, a rotating shaft is installed on the output shaft of the adjusting motor, the rotating shaft movably passes through a drive cavity opened in the inner wall of the rotating roller, a guide ring is installed on the outer wall of the rotating shaft located inside the drive cavity, an insert rod is slidably arranged on the side wall of the guide ring, and the insert rod movably passes through the side wall of the rotating roller, and a top plate is installed at the end of the insert rod located outside the rotating roller, and an axial limiting component is installed inside the top plate;

[0007] The axial limiting component includes a locking block that slides inside a sliding notch on the surface of the top plate. A positioning block is installed at the bottom of the locking block, a synchronizing rod is installed on the side wall of the positioning block, and a push plate is movably installed at the end of the synchronizing rod. A pressure block is installed on the top of the push plate.

[0008] Each pair of tensioning units includes two swing arms, which are movably mounted on a fixed bracket, and a pressure roller is movably mounted on the top of the swing arm;

[0009] The feeding unit includes a feeding trolley, inside which a hydraulic rod is installed, and a flat plate is installed at the end of the hydraulic rod.

[0010] In a preferred embodiment of the present invention, a fixed base is installed at the bottom of the vertical support, the fixed base and the vertical support are at a 90-degree angle, a reinforcing rib is installed between the fixed base and the vertical support, and a suitable counterweight is installed on the fixed base.

[0011] In a preferred embodiment of the present invention, a turntable is installed on the side of the rotating roller away from the adjusting motor, the end of the central shaft at the center of the turntable movably passes through the vertical support, and a drive motor is fixedly installed at the end of the central shaft of the turntable, the housing of the drive motor being welded to the outer wall of the vertical support.

[0012] In a preferred embodiment of the present invention, the outer wall of the guide ring is provided with four clamping grooves, each clamping groove is inclined, and a slide rod is slidably installed at the end of each clamping groove near the rotating shaft. A guide slider is installed on the slide rod, and an insert rod is installed on the outer wall of the guide slider.

[0013] In a preferred embodiment of the present invention, a rubber roller is installed on the outer wall of the card block, the rubber roller is positioned above the sliding notch, a limiting groove is formed on the outer wall of the push plate, the limiting groove is inclined, the height of the end of the limiting groove near the pressure block is higher than the height of the other side, a limiting slider is slidably installed on the limiting groove, a synchronizing rod is installed on the side wall of the limiting slider, a return spring is installed at the bottom of the push plate, and the other side of the return spring is engaged with the inner wall of the top plate.

[0014] In a preferred embodiment of the present invention, the sidewall of the fixed bracket is welded to the vertical bracket, a pair of connecting seats are installed on the fixed bracket, an arched bracket is movably installed inside the pair of connecting seats, and a pair of swing arms are welded to the top of the arched bracket.

[0015] In a preferred embodiment of the present invention, two crossbars are installed between a pair of swing arms. An electric push rod is movably installed on the side wall of the bottom crossbar. The bottom of the electric push rod housing is movably installed on a fixed bracket. A limit ring is installed on the top of the swing arm. The limit ring is larger than the size of the extrusion roller and is located at the ends of both sides of the extrusion roller.

[0016] In a preferred embodiment of the present invention, a sliding rail is slidably installed at the bottom of the feeding trolley, and the bottom of the sliding rail is welded to the side wall of the vertical support. A wire frame is installed on the side wall of the vertical support, and a wire harness is movably inserted inside the wire frame. The end of the wire harness is connected to the wiring port of the feeding trolley.

[0017] In a preferred embodiment of the present invention, two pairs of mounting seats are symmetrically installed on the top of the plate, a support guide roller is installed between each pair of mounting seats, a support arm is installed on the side wall of the mounting seat, the support arm is arc-shaped, and a connecting rod is installed between the support arms, the diameter of the connecting rod being smaller than the diameter of the support arm.

[0018] In a preferred embodiment of the present invention, a guide assembly is installed on the top of the vertical support. The guide assembly includes a cantilever, the sidewall of which is welded to the vertical support. A first guide roller is movably installed at the bottom of the cantilever, and a hydraulic cylinder is installed on the back of the cantilever. A piston rod is movably inserted into the hydraulic cylinder, and a second guide roller is installed at the end of the piston rod. The height of the second guide roller is lower than that of the first guide roller, and there is a gap between the first guide roller and the second guide roller.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The system is equipped with an installation unit, in which a rotating roller can be inserted inside the steel coil. Activating the adjusting motor causes the guide ring connected to the rotating shaft to rotate. This rotation of the guide ring moves the insertion rod outwards, and the top plate at the end of the insertion rod moves outwards synchronously. The top plate contacts the inner core of the steel coil, thus fixing the steel coil and the rotating roller together, limiting the rotation direction of the steel coil. Once fixed, the top plate and the steel coil are tightly fitted, causing the bottom pressure block and push plate to move inwards. A synchronous rod then causes the locking block to fit against the side wall of the steel coil, further limiting the axial movement of the steel coil. This simplifies steel coil installation and prevents displacement during feeding, making feeding safer.

[0021] 2. By setting up a tensioning unit and a feeding unit, the tensioning unit can drive the extrusion roller to always be in contact with the steel coil, reducing the possibility of the steel coil becoming loose. When the steel coil is placed on the feeding unit, the plate lifts the steel coil and can be inserted into the rotating roller, making the operation simpler and improving the degree of automation.

[0022] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0026] Figure 3 This is a side view of the present invention;

[0027] Figure 4 This is a cross-sectional view of the rotating roller of the present invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a partial cross-sectional view of the top plate of the present invention;

[0030] Figure 7 This is a schematic diagram of the tensioning unit of the present invention;

[0031] Figure 8 This is a schematic diagram of the feeding unit of the present invention.

[0032] In the picture:

[0033] 100. Vertical support; 101. Fixing base; 102. Reinforcing rib;

[0034] 200. Mounting unit; 201. Turntable; 2011. Drive motor; 202. Rotating roller; 2021. Drive cavity; 203. Adjusting motor; 2031. Rotating shaft; 2032. Guide ring; 2033. Clamping groove; 204. Top plate; 2041. Insert rod; 2042. Guide slider; 2043. Slide rod; 205. Locking block; 2051. Rubber roller; 2052. Positioning block; 2053. Sliding notch; 206. Pressure block; 2061. Push plate; 2062. Return spring; 2063. Limiting groove; 207. Synchronizing rod; 2071. Limiting slider;

[0035] 300. Tensioning unit; 301. Fixed bracket; 3011. Connecting seat; 302. Arched bracket; 3021. Swing arm; 3022. Crossbar; 303. Electric push rod; 304. Extrusion roller; 3041. Limiting ring;

[0036] 400. Feeding unit; 401. Feeding trolley; 4011. Sliding rail; 4012. Wire harness; 4013. Wire frame; 402. Flat plate; 4021. Mounting base; 4022. Support guide roller; 403. Support arm; 4031. Connecting rod;

[0037] 500, guide assembly; 501, cantilever; 5011, first guide roller; 502, hydraulic cylinder; 5021, piston rod; 5022, second guide roller. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0039] Example 1:

[0040] like Figures 1 to 8 As shown, a metal sheet feeder includes a vertical support 100, on which an installation unit 200, two pairs of tensioning units 300 and a feeding unit 400 are mounted.

[0041] The mounting unit 200 includes a rotating roller 202. An adjusting motor 203 is mounted on the outer wall of the rotating roller 202. A rotating shaft 2031 is mounted on the output shaft of the adjusting motor 203. The rotating shaft 2031 movably passes through a drive cavity 2021 opened in the inner wall of the rotating roller 202. A guide ring 2032 is mounted on the outer wall of the rotating shaft 2031 located inside the drive cavity 2021. A rod 2041 is slidably disposed on the side wall of the guide ring 2032, and the rod 2041 movably passes through the side wall of the rotating roller 202. A top plate 204 is installed at the end of the insert rod 2041 on the outside of the rotating roller 202. An axial limiting component is installed inside the top plate 204. The axial limiting component includes a locking block 205, which slides inside a sliding notch 2053 on the surface of the top plate 204. A positioning block 2052 is installed at the bottom of the locking block 205. A synchronizing rod 207 is installed on the side wall of the positioning block 2052. A push plate 2061 is movably installed at the end of the synchronizing rod 207. A pressure block 206 is installed on the top of the push plate 2061.

[0042] The system includes an installation unit where a rotating roller can engage with the surface of the steel coil to be fed. Activating the adjusting motor causes the guide ring connected to the rotating shaft to rotate. This rotation moves the insertion rod outwards, and the top plate at the end of the insertion rod moves outwards synchronously. The top plate contacts the inner core arm of the steel coil, thus fixing the coil to the central axis of the rotating roller and limiting its rotation. Once fixed, the top plate fits tightly against the coil, causing the bottom pressure block and push plate to move inwards. A synchronous rod then causes the locking block to engage with the side wall of the steel coil, further limiting its axial movement. This simplifies coil installation and ensures safer feeding without displacement of the coil during feeding.

[0043] Each pair of tensioning units 300 includes two swing arms 3021, which are movably mounted on a fixed bracket 301, and a pressure roller 304 is movably mounted on the top of the swing arms 3021. The feeding unit 400 includes a feeding trolley 401, inside which a hydraulic rod is installed, and a flat plate 402 is installed at the end of the hydraulic rod. By setting up tensioning units and feeding units, the pressure rollers of the tensioning units can always be in contact with the steel coil, reducing the possibility of the steel coil loosening as a whole. In addition, a feeding unit is set up so that when the steel coil is placed on the feeding unit, the flat plate inserts the steel coil into the installation unit, making the operation simpler and improving the degree of automation.

[0044] like Figures 1 to 8 As shown in the specific embodiment, a fixed base 101 is installed at the bottom of the vertical support 100. The fixed base 101 and the vertical support 100 form a 90-degree angle. A reinforcing rib 102 is installed between the fixed base 101 and the vertical support 100, and a suitable counterweight is installed on the fixed base 101. The fixed base 101 ensures a large contact area between the device and the ground, and the counterweight improves stability.

[0045] like Figures 1 to 8 As shown, further, a turntable 201 is installed on the side of the rotating roller 202 away from the adjusting motor 203. The end of the central shaft at the center of the turntable 201 movably passes through the vertical support 100. A drive motor 2011 is fixedly installed at the end of the central shaft of the turntable 201, and the housing of the drive motor 2011 is welded to the outer wall of the vertical support 100. When the drive motor 2011 is started, the turntable 201 and the rotating roller 202 at the end of the drive motor 2011 rotate, and the steel coil on the surface of the rotating roller 202 rotates in the opposite direction to the rotation of the steel coil, ensuring that the steel coil continuously falls off the steel coil roller, thereby enabling the feeding operation.

[0046] Example 2:

[0047] The difference between the above embodiments and this embodiment is that:

[0048] like Figures 1 to 8 As shown, the outer wall of the guide ring 2032 has four clamping grooves 2033, each of which is inclined. A slide rod 2043 is slidably mounted at the end of each clamping groove 2033 near the rotating shaft 2031. A guide slider 2042 is mounted on the slide rod 2043, and an insert rod 2041 is mounted on the outer wall of the guide slider 2042. When the adjusting motor 203 is started, it drives the rotating shaft 2031, which in turn drives the centrally connected guide ring 2032 to rotate synchronously. The clamping grooves 2033 on the side wall of the guide ring 2032 are inclined, and the horizontal distance from each position on the clamping groove 2033 to the central shaft is different. After the clamping slide 2033 rotates following the guide ring 2032, the position of the clamping slide 2033 changes, causing the internal sliding rod 2043, guide slider 2042 and insert rod 2041 to move outward. The insert rod 2041 is equipped with a top plate 204 at its end. At this time, the top plate 204 moves outward, thereby squeezing and fixing the inner wall of the outer steel coil and limiting the rotational movement of the steel coil, thus ensuring that the steel coil can rotate synchronously with the rotating roller 202.

[0049] like Figures 1 to 8As shown, in a specific embodiment, a rubber roller 2051 is installed on the outer wall of the locking block 205. The rubber roller 2051 is positioned above the sliding notch 2053. A limiting slide groove 2063 is opened on the outer wall of the push plate 2061. The limiting slide groove 2063 is in an inclined state. The height of the end of the limiting slide groove 2063 near the pressure block 206 is higher than the height of the other side. A limiting slider 2071 is slidably installed on the limiting slide groove 2063. A synchronizing rod 207 is installed on the side wall of the limiting slider 2071. A return spring 2062 is installed at the bottom of the push plate 2061. The other side of the return spring 2062 is engaged with the inner wall of the top plate 204. After the top plate 204 and the steel coil are squeezed, the internal pressure block 206 is pushed inward to compress, which drives the push plate 2061 to move inward synchronously. After the push plate 2061 is pushed downward synchronously, it will drive the return spring 2062 at the end of the push plate 2061 to compress. The compressed return spring 2062 facilitates the subsequent reset operation. After the push plate 2061 moves inward, the inclined limiting slide 2063 drives the synchronous rod 207 to move inward. The synchronous rod 207 is equipped with a positioning block 2052 at the end. The positioning block 2052 pushes the end of the locking block 205 to move towards the side wall of the steel coil, thereby limiting the axial movement of the steel coil along the rotating roller 202, and finally completing the fixing of the steel coil.

[0050] like Figures 1 to 8 As shown, further, the sidewall of the fixed bracket 301 is welded to the vertical bracket 100. A pair of connecting seats 3011 are installed on the fixed bracket 301. An arched bracket 302 is movably installed inside the pair of connecting seats 3011. A pair of swing arms 3021 are welded to the top of the arched bracket 302. Two crossbars 3022 are installed between the pair of swing arms 3021. An electric push rod 303 is movably installed on the sidewall of the bottom crossbar 3022. The bottom of the outer shell of the electric push rod 303 is movably installed on the fixed bracket 301. A limit ring 3041 is installed on the top of the swing arm 3021. The size of the limit ring 3041 is larger than the size of the extrusion roller 304, and the limit ring 3041 is located at the ends of both sides of the extrusion roller 304. The electric push rod 303 is activated, which drives the end swing arm 3021 to move in the direction of the steel coil. This causes the extrusion roller 304 at the end of the steel coil to press against the side wall of the steel coil as a whole, ensuring the tightness of the inside of the steel coil. The limiting ring 3041 on the side wall can limit the movement of the steel coil axis, which serves as a secondary limiting function and improves safety.

[0051] Example 3:

[0052] The difference between the above embodiments and this embodiment is that:

[0053] like Figures 1 to 8As shown, a sliding rail 4011 is slidably mounted on the bottom of the feeding trolley 401, and the bottom of the sliding rail 4011 is welded to the side wall of the vertical support 100. A wire frame 4013 is installed on the side wall of the vertical support 100, and a wire harness 4012 is movably inserted inside the wire frame 4013. The end of the wire harness 4012 is connected to the wiring port of the feeding trolley 401. Two pairs of mounting seats 4021 are symmetrically mounted on the top of the plate 402. A support guide roller 4022 is installed between each pair of mounting seats 4021. A support arm 403 is installed on the side wall of the mounting seat 4021. The support arm 403 is arc-shaped, and a connecting rod 4031 is installed between the support arms 403. The diameter of the connecting rod 4031 is smaller than the diameter of the support arm 403. A forklift places the coiled steel into a flat plate 402 inside the feeding unit 400, and the coil is supported by a connecting rod 4031 to reduce the possibility of it falling. The flat plate 402 has a support guide roller 4022, which contacts the coil synchronously, facilitating rotation of the coil at a certain angle on the flat plate 402. Next, the operator activates the hydraulic push rod inside the feeding trolley 401, which pushes the entire flat plate 402 upwards, aligning the center of the coil on the flat plate 402 with the rotating roller 202 horizontally. Then, the operator controls the feeding trolley 401 to move inwards along the sliding track 4011, thereby placing the entire coil above the rotating roller 202.

[0054] like Figures 1 to 8 As shown, in a specific embodiment, a guide assembly 500 is installed on the top of the vertical support 100. The guide assembly 500 includes a cantilever 501, the sidewall of which is welded to the vertical support 100. A first guide roller 5011 is movably installed at the bottom of the cantilever 501, and a hydraulic cylinder 502 is installed on the back of the cantilever 501. A piston rod 5021 is movably inserted into the hydraulic cylinder 502, and a second guide roller 5022 is installed at the end of the piston rod 5021. The height of the second guide roller 5022 is lower than that of the first guide roller 5011, and there is a gap between the first guide roller 5011 and the second guide roller 5022. The steel coil head is inserted between the first guide roller 5011 and the second guide roller 5022, thus providing a guiding function.

[0055] The operating principle of a metal sheet feeder is as follows:

[0056] When the device is needed, the operator first places the coiled steel coil into the flat plate 402 inside the feeding unit 400 using a forklift, and supports the entire steel coil with the connecting rod 4031 to reduce the possibility of the steel coil falling. The flat plate 402 has a support guide roller 4022, which contacts the steel coil synchronously, allowing the steel coil to rotate at a certain angle on the flat plate 402.

[0057] Next, the operator activates the hydraulic push rod inside the feeding trolley 401, which pushes the entire plate 402 upward so that the center position of the steel coil on the plate 402 is horizontally aligned with the rotating roller 202. Then, the operator controls the feeding trolley 401 to move inward along the sliding track 4011, thereby pushing the entire steel coil to be placed above the rotating roller 202.

[0058] Next, the operator starts the adjusting motor 203, which drives the rotating shaft 2031. The rotating shaft 2031 then drives the centrally connected guide ring 2032 to rotate synchronously. The guide ring 2032 has a clamping groove 2033 on its side wall. The clamping groove 2033 is inclined, and the horizontal distance from the central shaft varies at different positions on the clamping groove 2033. After the clamping groove 2033 rotates with the guide ring 2032, the change in position of the clamping groove 2033 causes the internal sliding rod 2043, guide slider 2042, and insertion rod 2041 to move outward. The insertion rod 2041 has a top plate 204 installed at its end. At this time, the top plate 204 moves outward, thereby squeezing and fixing the inner wall of the outer steel coil, limiting the rotational movement of the steel coil, and ensuring that the steel coil can rotate synchronously with the rotating roller 202.

[0059] After the top plate 204 and the steel coil are squeezed, the internal pressure block 206 is pushed inward to compress, which drives the push plate 2061 to move inward synchronously. After the push plate 2061 is pushed downward synchronously, it will drive the return spring 2062 at the end of the push plate 2061 to compress. The compressed return spring 2062 facilitates the subsequent reset operation. After the push plate 2061 moves inward, the inclined limiting slide 2063 drives the synchronous rod 207 to move inward. The synchronous rod 207 is equipped with a positioning block 2052 at the end. The positioning block 2052 pushes the end of the locking block 205 to move towards the side wall of the steel coil, thereby limiting the axial movement of the steel coil along the rotating roller 202, and finally completing the fixing of the steel coil.

[0060] Next, the feeding trolley is started and returned to its initial position. Then, the operator starts the electric push rod 303, which drives the end swing arm 3021 to move towards the steel coil. This causes the extrusion roller 304 at the end of the steel coil to press against the side wall of the steel coil as a whole, ensuring the tightness of the inside of the steel coil. The limiting ring 3041 on the side wall can limit the movement of the steel coil axis, which serves as a secondary limiting function and improves safety.

[0061] Next, the operator needs to remove the cable ties from the surface of the steel coil. After removal, the steel coil head is inserted between the first guide roller 5011 and the second guide roller 5022, which serves as a guide. Then, the drive motor 2011 is started, which drives the turntable 201 and the rotating roller 202 at the end to rotate. The steel coil on the surface of the rotating roller 202 rotates in the opposite direction to the rotation of the steel coil, ensuring that the steel coil continuously falls off the steel coil roller, thus enabling the feeding operation.

Claims

1. A metal sheet feeder, comprising a vertical support (100), characterized in that, The vertical support (100) is equipped with an installation unit (200), two pairs of tensioning units (300) and a feeding unit (400). The installation unit (200) includes a rotating roller (202), an adjusting motor (203) is installed on the outer wall of the rotating roller (202), a rotating shaft (2031) is installed on the output shaft of the adjusting motor (203), the rotating shaft (2031) movably passes through a driving cavity (2021) opened in the inner wall of the rotating roller (202), a guide ring (2032) is installed on the outer wall of the rotating shaft (2031) located inside the driving cavity (2021), an insert rod (2041) is slidably arranged on the side wall of the guide ring (2032), and the insert rod (2041) movably passes through the side wall of the rotating roller (202), and a top plate (204) is installed at the end of the insert rod (2041) located outside the rotating roller (202), and an axial limiting component is installed inside the top plate (204); The axial limiting assembly includes a locking block (205), which slides inside a sliding notch (2053) on the surface of the top plate (204). A positioning block (2052) is installed at the bottom of the locking block (205), a synchronizing rod (207) is installed on the side wall of the positioning block (2052), and a push plate (2061) is movably installed at the end of the synchronizing rod (207). A pressure block (206) is installed on the top of the push plate (2061). A rubber roller (2051) is installed on the outer wall of the locking block (205), and the rubber roller (2051) is placed in the sliding notch (2053). Above 053), a limiting groove (2063) is provided on the outer wall of the push plate (2061). The limiting groove (2063) is inclined. The height of the end of the limiting groove (2063) near the pressure block (206) is higher than the height of the other side. A limiting slider (2071) is slidably installed on the limiting groove (2063). A synchronizing rod (207) is installed on the side wall of the limiting slider (2071). A return spring (2062) is installed at the bottom of the push plate (2061). The other side of the return spring (2062) is engaged with the inner wall of the top plate (204). Each pair of tensioning units (300) includes two swing arms (3021), which are movably mounted on a fixed bracket (301), and a pressure roller (304) is movably mounted on the top of the swing arm (3021). The feeding unit (400) includes a feeding trolley (401), which has a hydraulic rod installed inside and a flat plate (402) installed at the end of the hydraulic rod.

2. The metal sheet feeder according to claim 1, characterized in that, The bottom of the vertical support (100) is equipped with a fixed seat (101), the fixed seat (101) and the vertical support (100) are at a 90-degree angle, a reinforcing rib (102) is installed between the fixed seat (101) and the vertical support (100), and a matching counterweight is installed on the fixed seat (101).

3. A metal sheet feeder according to claim 1, characterized in that, A turntable (201) is installed on the side of the rotating roller (202) away from the adjusting motor (203). The end of the central shaft of the turntable (201) moves through the vertical bracket (100). A drive motor (2011) is fixedly installed at the end of the central shaft of the turntable (201). The housing of the drive motor (2011) is welded to the outer wall of the vertical bracket (100).

4. A metal sheet feeder according to claim 1, characterized in that, The outer wall of the guide ring (2032) is provided with four clamping grooves (2033), each clamping groove (2033) is inclined, and a slide rod (2043) is slidably installed at the end of each clamping groove (2033) near the rotating shaft (2031). A guide slider (2042) is installed on the slide rod (2043), and an insert rod (2041) is installed on the outer wall of the guide slider (2042).

5. A metal sheet feeder according to claim 1, characterized in that, The side wall of the fixed bracket (301) is welded to the vertical bracket (100). A pair of connecting seats (3011) are installed on the fixed bracket (301). An arched bracket (302) is movably installed inside the pair of connecting seats (3011). A pair of swing arms (3021) are welded to the top of the arched bracket (302).

6. A metal sheet feeder according to claim 5, characterized in that, Two crossbars (3022) are installed between a pair of swing arms (3021). An electric push rod (303) is movably installed on the side wall of the bottom crossbar (3022). The bottom of the outer shell of the electric push rod (303) is movably installed on a fixed bracket (301). A limit ring (3041) is installed on the top of the swing arm (3021). The size of the limit ring (3041) is larger than that of the extrusion roller (304), and the limit ring (3041) is located at the ends of both sides of the extrusion roller (304).

7. A metal sheet feeder according to claim 1, characterized in that, The bottom of the feeding trolley (401) is slidably mounted with a sliding rail (4011), and the bottom of the sliding rail (4011) is welded to the side wall of the vertical support (100). A wire frame (4013) is installed on the side wall of the vertical support (100), and a wire harness (4012) is movably inserted inside the wire frame (4013). The end of the wire harness (4012) is connected to the wiring port of the feeding trolley (401).

8. A metal sheet feeder according to claim 1, characterized in that, Two pairs of mounting seats (4021) are symmetrically installed on the top of the plate (402). A support guide roller (4022) is installed between each pair of mounting seats (4021). A support arm (403) is installed on the side wall of the mounting seat (4021). The support arm (403) is arc-shaped. A connecting rod (4031) is installed between the support arms (403). The diameter of the connecting rod (4031) is smaller than the diameter of the support arm (403).

9. A metal sheet feeder according to claim 1, characterized in that, The top of the vertical support (100) is equipped with a guide assembly (500), which includes a cantilever (501). The sidewall of the cantilever (501) is welded to the vertical support (100). A first guide roller (5011) is movably installed at the bottom of the cantilever (501). A hydraulic cylinder (502) is installed on the back of the cantilever (501). A piston rod (5021) is movably inserted inside the hydraulic cylinder (502), and a second guide roller (5022) is installed at the end of the piston rod (5021). The height of the second guide roller (5022) is lower than that of the first guide roller (5011), and there is a gap between the first guide roller (5011) and the second guide roller (5022).

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