Automatic framing device for extruded aluminum profiles

Abstract

The invention discloses an automatic framing device for extruded aluminum profiles, comprising a frame, a synchronous belt conveying mechanism, a PLC controller, a touch screen, a frequency converter, an encoder, a feed arm lifting and lifting mechanism, a feed arm advance and retreat mechanism, a discharge arm lifting and lifting mechanism, a discharge arm advance and retreat mechanism and a framing mechanism. The feed arm lifting and lifting mechanism and the discharge arm lifting and lifting mechanism adopt different lifting cylinders, a middle-layer thrust frame and an upper-layer lifting frame. The middle-layer thrust frame adopts an inclined rail lifting plate and a U-shaped groove roller to cooperate with each other, has a compact structure, and can relay the aluminum profile to the framing mechanism at a relatively small height, thereby shortening the material transfer time. The framing mechanism adopts a lifter, has a small unloading height, and greatly reduces the impact force. The horizontal strips and frames do not need to be specially made, and the material frame can also hold more products, thereby reducing the production cost.

Description

Technical Field

[0001] The invention relates to the technical field of extruded aluminum profile framing equipment, in particular to an automatic framing device for extruded aluminum profiles. Background Art

[0002] The common automatic framing machine for aluminum profiles in the prior art is that two workers lift the profiles into the frame, which is labor-intensive and requires many operators. In recent years, there are many kinds of automatic framing machines for aluminum profiles on the market, but to make special frames and high-strength horizontal strips with a thickness of more than 12 mm, it is expensive to make frames and horizontal strips alone, and the number of profiles loaded into the frame is less than before, and the work efficiency is reduced. In the prior art, there is an automatic framing machine for aluminum profiles with an application number of 2020113094017. The horizontal strips used for automatic framing of aluminum profiles in this structure must be specially thickened, and all frames for automatic framing of aluminum profiles must be specially made, which increases the production cost; the thickening of the horizontal strips will reduce the number of profile layers that can be installed in each frame, that is, the amount of profiles that can be installed in each frame will be reduced, which increases the production cost of the aging process. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic framing device for extruded aluminum profiles that does not require special material frames and horizontal strips, reduces labor, lowers production costs, and improves production efficiency in response to the above-mentioned problems and shortcomings.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic framing device for extruded aluminum profiles, comprising a frame, a synchronous belt conveying mechanism arranged on the frame, a feeding mechanism, a unloading mechanism, a PLC controller, a touch screen, a frequency converter, an encoder and a framing mechanism arranged at the front end of the feeding mechanism, the frame comprising a bottom frame, an upper bracket and a plurality of columns, the feeding mechanism comprising a feeding arm lifting and lifting mechanism and a feeding arm advance and retreat mechanism, the unloading mechanism comprising a unloading arm lifting and lifting mechanism and a unloading arm advance and retreat mechanism, wherein the feeding arm lifting and lifting mechanism comprises a first lifting cylinder installed on the bottom frame, a first middle-layer thrust frame and a first upper-layer lifting frame arranged in sequence from bottom to top above the bottom frame, the piston rod of the first lifting cylinder is connected to the first middle-layer thrust frame, the first middle-layer thrust frame and the first upper-layer lifting frame are both set as quadrilateral frame bodies, the bottom frame is provided with vertical first guide rods at four corners corresponding to the first upper-layer lifting frame, the first upper-layer lifting frame is provided with a first guide cylinder matching the first guide rods, The first inclined rail lifting plate is symmetrically installed on both sides of the two ends of the first middle layer thrust frame, and the first inclined rail lifting plate is a vertical plate body, the upper part of the first inclined rail lifting plate is provided with a first inclined slide rail, the lowest position of the first inclined slide rail is provided with a first limit stopper, and the lower part of the first inclined rail lifting plate is provided with a first horizontal slide rail, and the two sides at both ends of the bottom frame are provided with first lower U-shaped groove rollers corresponding to the positions of the first inclined rail lifting plate, and the two sides at both ends of the first upper layer lifting frame are provided with first upper U-shaped groove rollers corresponding to the positions of the first inclined slide rails; the first upper layer lifting frame cooperates with the first inclined slide rail through the first upper U-shaped groove roller, and the first middle layer thrust frame cooperates with the first lower U-shaped groove roller provided on the bottom frame through the first horizontal slide rail of the first inclined rail lifting plate, and the first middle layer thrust frame is driven by the first lifting cylinder, and the first inclined surface slide rail and the first horizontal slide rail of the first inclined rail lifting plate respectively cooperate with the U-shaped grooves of the first upper U-shaped groove roller and the first lower U-shaped groove roller to realize the lifting of the first upper layer lifting frame, thereby realizing the lifting of the feeding arm;

[0005] The unloading arm lifting and lowering mechanism includes a second lifting cylinder installed on the bottom frame, a second middle-layer thrust frame and a second upper-layer lifting frame arranged in sequence from bottom to top above the bottom frame, the piston rod of the second lifting cylinder is connected to the second middle-layer thrust frame, the second middle-layer thrust frame and the second upper-layer lifting frame are both set as quadrilateral frame bodies, the bottom frame is provided with vertical second guide rods at four corners corresponding to the second upper-layer lifting frame, the second upper-layer lifting frame is provided with a second guide cylinder matching the second guide rod, the second middle-layer thrust frame is provided with a second cross-rod, the extension and retraction direction of the piston rod of the second lifting cylinder is parallel to the projection direction of the second inclined rail of the second inclined rail lifting plate on the ground, and the piston rod of the second lifting cylinder is fixedly connected to the second cross-rod; second inclined rail lifting plates are symmetrically installed on both sides of the two ends of the second middle-layer thrust frame, and the second inclined rail lifting plates are upright plates The second upper layer lifting frame cooperates with the second inclined slide rail through the second upper U-shaped groove roller, and the second middle layer thrust frame cooperates with the second lower U-shaped groove roller provided on the bottom frame through the second horizontal slide rail of the second inclined rail lifting plate. Under the push of the second lifting cylinder, the second middle layer thrust frame cooperates with the second inclined slide rail and the second horizontal slide rail of the second inclined rail lifting plate respectively with the second upper U-shaped groove roller and the second lower U-shaped groove roller to realize the lifting and lowering of the second upper layer lifting frame, thereby realizing the lifting and lowering of the unloading arm;

[0006] The length and width of the quadrilateral frame body formed by the second middle-level thrust frame and the second upper-level lifting frame are smaller than the length and width of the inner cavity formed by the quadrilateral frame body formed by the first middle-level thrust frame and the first upper-level lifting frame. The first lifting cylinder is installed on one side of the cavity surrounded by the first middle-level thrust frame and the first upper-level lifting frame. The second middle-level thrust frame and the second upper-level lifting frame are installed in the frame of the first middle-level thrust frame and the first upper-level lifting frame. The height of the second middle-level thrust frame is greater than the height of the first lifting cylinder. The second lifting cylinder is installed on the other side of the frame of the first middle-level thrust frame and the first upper-level lifting frame.

[0007] The unloading arm lifting mechanism of this scheme is a smaller version of the feeding arm lifting mechanism, but the volume is smaller, and the mechanical structure principle is basically the same as that of the feeding arm lifting mechanism. The quadrilateral frame body of the unloading arm lifting mechanism is arranged inside the quadrilateral frame body of the feeding arm lifting mechanism, and the internal motion mechanisms all move independently without blocking each other.

[0008] Furthermore, the feed arm advance and retreat mechanism includes a feed arm motor arranged on a frame, a feed arm transmission shaft, a feed arm main drive sprocket installed at the output end of the feed arm motor, a feed arm driven sprocket installed on the feed arm transmission shaft and matched with the feed arm main drive sprocket, a chain connecting the feed arm main drive sprocket and the feed arm driven sprocket, multiple groups of feed arm output active sprockets installed at the output end of the feed arm transmission shaft, a feed arm output active chain installed at the upper rear end of the first upper lifting frame and connected to the feed arm output active chain A feeding arm transition passive sprocket connected by a wheel chain, a feeding arm driving sprocket installed coaxially with the feeding arm transition passive sprocket, a feeding arm passive sprocket installed at the front end of the upper part of the first upper lifting frame and connected to the chain, a feeding arm chain connecting the feeding arm driving sprocket and the feeding arm passive sprocket, multiple groups of feeding arm slide rails installed in parallel on the first upper lifting frame, a feeding arm slide seat installed on the feeding arm slide rails, a feeding arm installed at the front end of the feeding arm slide seat, and a positioning sensor installed at the front end of the feeding arm slide seat, wherein In the embodiment, a feeding arm chain fixing block is provided on the side of the feeding arm slide, and the feeding arm slide is fixed on the feeding arm chain through the feeding arm chain fixing block. Slide grooves are provided on both sides of the feeding arm slide rail, and clamping pulleys are provided on both sides of the lower part of the feeding arm slide. The feeding arm slide clamps the slide grooves provided on both sides of the feeding arm slide rail through the clamping pulleys provided on both sides; the feeding arm slide is installed on the first upper lifting frame; the working principle is: the PLC controller controls the forward rotation of the lifting feeding arm motor, and the main driving sprocket of the feeding arm is driven by the chain, The passive sprocket of the feeding arm drives the feeding arm transmission long axis to rotate, and multiple groups of feeding arm output active sprockets synchronously drive the transition passive sprockets of each group of feeding arms to rotate through chains, and the transition passive sprocket of the feeding arm drives the active sprocket of the feeding arm to rotate in linkage, and the active sprocket of the feeding arm drives the passive sprocket of the feeding arm to rotate through the feeding arm chain. At this time, the feeding arm slide clamps the slide grooves on both sides of the feeding arm slide rail through the clamping pulleys on both sides, and drives the feeding arm to move straight forward through the feeding arm chain, and stops when it moves to the positioning sensor.

[0009] Furthermore, the unloading arm advance and retreat mechanism includes an unloading arm motor arranged on the frame, an unloading arm transmission shaft, a unloading arm main drive sprocket installed at the output end of the unloading arm motor and an unloading arm passive sprocket installed on the unloading arm transmission shaft and matched with the unloading arm main drive sprocket, a chain connecting the unloading arm main drive sprocket and the unloading arm passive sprocket, multiple groups of unloading arm output active sprockets installed at the output end of the unloading arm transmission shaft, and a chain installed at the upper rear end of the second upper lifting frame and matched with the unloading arm output active sprocket. A chain-connected unloading arm transition passive sprocket, a unloading arm driving sprocket installed coaxially with the unloading arm transition passive sprocket, a unloading arm passive sprocket installed at the front end of the upper part of the second upper lifting frame and connected to the chain, a unloading arm chain connecting the unloading arm driving sprocket and the unloading arm passive sprocket, multiple groups of unloading arm slide rails installed in parallel on the second upper lifting frame, a unloading arm slide seat installed on the unloading arm slide rail, a unloading arm installed at the front end of the unloading arm slide seat, and a positioning sensor installed at the front end of the unloading arm slide seat, wherein The unloading arm slide is provided with a unloading arm chain fixing block on the side thereof, and the unloading arm slide is fixed on the unloading arm chain through the unloading arm chain fixing block; slide grooves are provided on both sides of the unloading arm slide rail, and clamping pulleys are provided on both sides of the lower part of the unloading arm slide, and the unloading arm slide clamps the slide grooves provided on both sides of the unloading arm slide rail through the clamping pulleys provided on both sides; the unloading arm slide rail is installed on the second upper lifting frame; the working principle is: the PLC controller controls the unloading arm motor to rotate forward, and the main driving sprocket of the unloading arm is driven by the chain, unloading The passive sprocket of the material arm drives the long transmission axis of the unloading arm to rotate, and multiple groups of unloading arm output active sprockets synchronously drive the transition passive sprockets of each group of unloading arms to rotate through chains. The transition passive sprocket of the unloading arm drives the active sprocket of the unloading arm to rotate, and the active sprocket of the unloading arm drives the passive sprocket of the unloading arm to rotate through the unloading arm chain. At this time, the feeding arm slide clamps the slide grooves on both sides of the unloading arm slide rail through the clamping pulleys on both sides, and drives the unloading arm to move in a straight line and extend forward through the unloading arm chain, and stops when it moves to the positioning sensor.

[0010] Furthermore, the synchronous belt conveying mechanism includes a conveyor belt motor installed on a frame, a reduction gear box, a conveyor belt transmission shaft, multiple sets of synchronous driving gears installed on the conveyor belt transmission shaft, multiple conveyor belt support rods horizontally and parallelly arranged on multiple columns, a conveyor belt driving pulley installed at the rear end of the conveyor belt support rod, a synchronous passive gear installed coaxially with the conveyor belt driving pulley, a chain connecting the synchronous driving gear and the synchronous passive gear, a conveyor belt passive pulley installed at the front end of the conveyor belt support rod, and a conveyor belt sleeved on the conveyor belt driving pulley and the conveyor belt passive pulley.

[0011] The cam is an axially-coupled device for camming the lift, and the cam is connected to the transmission shaft of the lift by a threaded guide tube, wherein the guide tube has a plurality of cams connected to the transmission shaft of the lift. The cam is connected to the transmission shaft of the lift by a threaded guide tube, wherein the guide tube has a plurality of cams connected to the transmission shaft of the lift. The guide tubes are connected to the transmission shaft of the lift by a threaded guide tube, wherein the guide tubes are connected to the transmission shaft of the lift. Working principle: The PLC controller controls the forward and reverse rotation of the frame loader motor, and drives the frame loader drive shaft to rotate through the active pulley and the passive pulley. The elevator connected at both ends of the frame loader drive shaft cooperates with the worm and worm gear set at both ends of the frame loader drive shaft, and the worm gear is installed in the elevator box. The elevator box and the elevator mounting seat are fixed. The worm gear rotates in the elevator box, forcing the lifting screw that cooperates with the inner thread of the hole to rise and fall, and the aluminum profile support plate also rises and falls. According to the height of each layer of aluminum alloy profiles when stacked, set the forward or reverse stroke of the frame loader motor. When unloading, the PLC controller controls the frame loader motor to reverse, and the lifting screw descends layer by layer, stops at each descending layer, and the unloading arm, thereby shortening the unloading height and reducing the impact force.

[0012] Furthermore, first inclined rail lifting plates are symmetrically installed on both sides of the middle of the first middle-layer thrust frame, first lower U-shaped groove rollers are arranged on both sides of the middle of the bottom frame corresponding to the positions of the first inclined rail lifting plates, and first upper U-shaped groove rollers are arranged on both sides of the middle of the first upper-layer lifting frame corresponding to the positions of the first inclined slide rails;

[0013] Second inclined rail lifting plates are symmetrically installed on both sides of the middle part of the second middle-level thrust frame, second lower U-shaped groove rollers are arranged on both sides of the middle part of the bottom frame corresponding to the positions of the second inclined rail lifting plates, and second upper U-shaped groove rollers are arranged on both sides of the middle part of the second upper-level lifting frame corresponding to the positions of the second inclined slide rails.

[0014] Furthermore, six sets of feeding arms and unloading arms are provided; six groups of synchronous driving gears are provided, six conveyor belt support rods are provided, and six conveyor belts are provided.

[0015] Furthermore, a first transverse push rod is provided on the first middle-layer thrust frame, the extension direction of the piston rod of the first lifting cylinder is parallel to the projection direction of the first inclined slide rail of the first inclined rail lifting plate on the ground, and the piston rod of the first lifting cylinder is fixedly connected to the first transverse push rod;

[0016] The second middle layer thrust frame is provided with a second transverse push rod, the extension direction of the piston rod of the second lifting cylinder is parallel to the projection direction of the first inclined slide rail of the second inclined rail lifting plate on the ground, and the piston rod of the second lifting cylinder is fixedly connected to the second transverse push rod.

[0017] Furthermore, a servo motor is used instead of frequency conversion and encoder control.

[0018] Furthermore, a material blocking device is provided on one side of the unloading arm, and the material blocking device includes a mounting plate fixed on one side of the unloading arm and a material blocking cylinder installed on the mounting plate. The piston rod of the material blocking cylinder faces the unloading arm, and a pressure pad is fixed to the end of the piston rod.

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

[0020] 1. Since the feeding mechanism adopts the feeding arm lifting and lifting mechanism and the feeding arm advance and retreat mechanism, and the unloading mechanism adopts the unloading arm lifting and lifting mechanism and the unloading arm advance and retreat mechanism, the structure is compact, and the aluminum profile is relayed to the framing mechanism at a smaller height, which shortens the material transfer time. The framing mechanism adopts an elevator. During unloading, the horizontal strips slide down into the frame together with the profiles at a small unloading height, avoiding the previous machines taking a long time to convey aluminum profiles. During unloading, due to the large height and large impact force, the horizontal strips need to be thickened, and the material frame can also hold more products.

[0021] 2. The horizontal strips used for automatic framing of aluminum profiles are universal. There is no need to remake the horizontal strips. You only need to use the 5mm thick horizontal strips originally mounted on the unloading arm, which greatly reduces the production cost.

[0022] 3. The frames used for automatic framing of aluminum profiles do not need to be specially made. All the material frames in the original production can be used, which effectively reduces the loss of production costs in actual production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of an embodiment of the present invention;

[0024] Figure 2 This is a structural schematic diagram of a feeding arm lifting and lowering mechanism according to an embodiment of the present invention;

[0025] Figure 3 A schematic structural diagram of a synchronous belt conveying mechanism according to an embodiment of the present invention;

[0026] Figure 4 The figure is a schematic structural diagram of a framing mechanism according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Embodiment 1: As shown in the attached Figure 1-4 As shown, the present invention provides an automatic framing device for extruded aluminum profiles, comprising a frame 1, a synchronous belt conveying mechanism arranged on the frame 1, a feeding mechanism, a discharge mechanism, a PLC controller, a touch screen, a frequency converter, an encoder, and a framing mechanism arranged at the front end of the feeding mechanism, the frame 1 comprises a bottom frame 11 and an upper bracket 12 and multiple columns 131, the feeding mechanism comprises a feeding arm lifting and lifting mechanism and a feeding arm forward and backward mechanism, the discharge mechanism comprises a discharge arm lifting and lifting mechanism and a discharge arm forward and backward mechanism, wherein the feeding arm lifting and lifting mechanism comprises a The first lifting cylinder 10 on the bottom frame 11, the first middle-layer thrust frame 21 and the first upper-layer lifting frame 22 are sequentially arranged from bottom to top above the bottom frame 11, the piston rod of the first lifting cylinder 10 is connected to the first middle-layer thrust frame 21, the first middle-layer thrust frame 21 and the first upper-layer lifting frame 22 are both set as quadrilateral frame bodies, the bottom frame 11 is provided with vertical first guide rods 17 at four corners corresponding to the first upper-layer lifting frame 22, the first upper-layer lifting frame 22 is provided with a first guide cylinder 18 matching the first guide rod 17, and the two sides of the first middle-layer thrust frame 21 at both ends are symmetrically installed There is a first inclined rail lifting plate 13, the first inclined rail lifting plate 13 is a vertical plate body, the first inclined rail lifting plate 13 is provided with a first inclined slide rail 14 on the upper part, the first inclined slide rail 14 is provided with a first limit block 15 at the lowest position, the first inclined rail lifting plate 13 is provided with a first horizontal slide rail 16 at the lower part, the two sides of the two ends of the bottom frame 11 correspond to the position of the first inclined rail lifting plate 13 and are provided with a first lower U-shaped groove roller 111, the two sides of the two ends of the first upper lifting frame 22 correspond to the position of the first inclined slide rail 14 and are provided with a first upper U-shaped groove roller 112; the first upper lifting frame 22 is provided with a first upper U-shaped groove roller 112; The U-groove roller 112 cooperates with the first inclined slide rail 14, and the first middle-level thrust frame 21 cooperates with the first lower U-groove roller 111 provided on the bottom frame 11 through the first horizontal slide rail 16 of the first inclined rail lifting plate 13. Under the push of the first lifting cylinder 10, the first inclined slide rail 14 and the first horizontal slide rail 16 of the first inclined rail lifting plate 13 respectively cooperate with the U-grooves of the first upper U-groove roller 112 and the first lower U-groove roller 111 to realize the lifting and lowering of the first upper-level lifting frame 22, thereby realizing the lifting and lowering of the feeding arm 25.

[0029] The unloading arm lifting and lowering mechanism of this embodiment includes a second lifting cylinder installed on the bottom frame 11, a second middle-layer thrust frame and a second upper-layer lifting frame arranged in sequence from bottom to top above the bottom frame 11, the piston rod of the second lifting cylinder is connected to the second middle-layer thrust frame, the second middle-layer thrust frame and the second upper-layer lifting frame are both configured as quadrilateral frame bodies, the bottom frame 11 is provided with vertical second guide rods at four corners corresponding to the second upper-layer lifting frame, the second upper-layer lifting frame is provided with a second guide cylinder matching the second guide rod, the second middle-layer thrust frame is provided with a second cross-rod, the extension and retraction direction of the piston rod of the second lifting cylinder is parallel to the projection direction of the second inclined rail of the second inclined rail lifting plate on the ground, and the piston rod of the second lifting cylinder is fixedly connected to the second cross-rod; the second inclined rail lifting plates are symmetrically installed on both sides of the two ends of the second middle-layer thrust frame, and the second inclined rail lifting plates are upright plates. The upper part of the second inclined rail lifting plate is provided with a second inclined slide rail, the lowest position of the second inclined slide rail is provided with a second limit stopper, and the lower part of the second inclined rail lifting plate is provided with a second horizontal slide rail. The two side edges at both ends of the bottom frame 11 are provided with second lower U-shaped groove rollers corresponding to the positions of the second inclined rail lifting plates, and the two side edges at both ends of the second upper lifting frame are provided with second upper U-shaped groove rollers corresponding to the positions of the second inclined slide rails. The second upper lifting frame cooperates with the second inclined slide rail through the second upper U-shaped groove roller, and the second middle-layer thrust frame cooperates with the second lower U-shaped groove roller provided on the bottom frame 11 through the second horizontal slide rail of the second inclined rail lifting plate. Under the push of the second lifting cylinder, the second middle-layer thrust frame, the second inclined surface slide rail and the second horizontal slide rail of the second inclined rail lifting plate respectively cooperate with the second upper U-shaped groove roller and the second lower U-shaped groove roller to realize the lifting of the second upper lifting frame, thereby realizing the lifting of the unloading arm 31.

[0030] The unloading arm lifting and lifting mechanism of this embodiment is a reduced version of the feeding arm lifting and lifting mechanism, but the volume is reduced, and the mechanical structure principle is basically the same as that of the feeding arm lifting and lifting mechanism. The quadrilateral frame body of the unloading arm lifting and lifting mechanism is arranged inside the quadrilateral frame body of the feeding arm lifting and lifting mechanism, and the internal motion mechanisms all move independently without blocking each other.

[0031] In this embodiment, the length and width of the quadrilateral frame body formed by the second middle-level thrust frame and the second upper-level lifting frame are smaller than the length and width of the inner cavity formed by the quadrilateral frame body formed by the first middle-level thrust frame 21 and the first upper-level lifting frame 22. The first lifting cylinder 10 is installed on one side of the cavity surrounded by the first middle-level thrust frame 21 and the first upper-level lifting frame 22, and the second middle-level thrust frame and the second upper-level lifting frame are installed in the frame of the first middle-level thrust frame 21 and the first upper-level lifting frame 22. The height of the second middle-level thrust frame is greater than the height of the first lifting cylinder 10, and the second lifting cylinder is installed on the other side of the frame of the first middle-level thrust frame 21 and the first upper-level lifting frame 22.

[0032] The feeding arm advance and retreat mechanism of the present embodiment comprises a feeding arm motor 31 arranged on the frame 1, a feeding arm transmission shaft 32, a feeding arm main drive sprocket 33 installed at the output end of the feeding arm motor 31, a feeding arm driven sprocket 34 installed on the feeding arm transmission shaft 32 and matched with the feeding arm main drive sprocket 33, a chain connecting the feeding arm main drive sprocket 33 and the feeding arm driven sprocket 34, a plurality of feeding arm output driving sprockets 35 installed at the output end of the feeding arm transmission shaft 32, and a feeding arm output driving sprocket 35 installed at the upper rear end of the first upper lifting frame 22 and chained with the feeding arm output driving sprocket 35. The feeding arm comprises a feeding arm transition passive sprocket 36 connected to the feeding arm, a feeding arm driving sprocket 37 coaxially installed with the feeding arm transition passive sprocket 36, a feeding arm passive sprocket 38 installed at the front end of the upper part of the first upper lifting frame 22 and connected to the chain, a feeding arm chain connecting the feeding arm driving sprocket 37 and the feeding arm passive sprocket 38, a plurality of feeding arm slide rails 23 installed in parallel on the first upper lifting frame 22, a feeding arm slide seat 24 installed on the feeding arm slide rails 23, a feeding arm 25 installed at the front end of the feeding arm slide seat 24, and a positioning sensor installed at the front end of the feeding arm slide seat 24, The position sensor is a photoelectric induction switch, wherein a feeding arm chain fixing block 241 is provided on the side of the feeding arm slide 24, the feeding arm slide 24 is fixed on the feeding arm chain through the feeding arm chain fixing block 241, and slide grooves are provided on both sides of the feeding arm slide rail 23, and clamping pulleys are provided on both sides of the lower part of the feeding arm slide 24. The feeding arm slide 24 clamps the slide grooves provided on both sides of the feeding arm slide rail 23 through the clamping pulleys provided on both sides; the feeding arm slide 24 is installed on the first upper lifting frame 22; the working principle is: the PLC controller controls the lifting feeding arm motor 31 to rotate forward, and the feeding arm main driving sprocket 33 is driven by The chain and the driven sprocket 34 of the feeding arm drive the feeding arm transmission long shaft 32 to rotate, and the multiple groups of feeding arm output active sprockets 35 synchronously drive the feeding arm transition passive sprockets 36 of each group to rotate through the chain, and the feeding arm transition passive sprocket 36 drives the feeding arm active sprocket 37 to rotate in linkage, and the feeding arm active sprocket 37 drives the feeding arm passive sprocket 38 to rotate through the feeding arm chain. At this time, the feeding arm slide 24 clamps the slide grooves on both sides of the feeding arm slide rail 23 through the clamping pulleys on both sides, and drives the feeding arm 25 to move linearly forward through the feeding arm chain, and moves to the positioning sensor to stop.

[0033] The unloading arm advance and retreat mechanism of the present embodiment includes an unloading arm motor 61 arranged on the frame 1, an unloading arm transmission shaft 62, a unloading arm main drive sprocket 63 installed at the output end of the unloading arm motor 61, and a unloading arm passive sprocket installed on the unloading arm transmission shaft 62 and matched with the unloading arm main drive sprocket, a chain connecting the unloading arm main drive sprocket and the unloading arm passive sprocket, a plurality of unloading arm output active sprockets installed at the output end of the unloading arm transmission shaft 62, and a chain installed at the upper rear end of the second upper lifting frame and connected with the unloading arm output active sprocket. The unloading arm transition passive sprocket connected to the unloading arm, the unloading arm driving sprocket 67 installed coaxially with the unloading arm transition passive sprocket, the unloading arm passive sprocket 68 installed on the front end of the upper part of the second upper lifting frame and connected to the chain, the unloading arm chain connecting the unloading arm driving sprocket 67 and the unloading arm passive sprocket 68, multiple groups of unloading arm slide rails 73 installed in parallel on the second upper lifting frame, the unloading arm slide 74 installed on the unloading arm slide rail 73, the unloading arm 75 installed at the front end of the unloading arm slide 74, and the positioning device installed at the front end of the unloading arm slide 74 The unloading arm slide 74 has a unloading arm chain fixing block on its side, and the unloading arm slide 74 is fixed on the unloading arm chain through the unloading arm chain fixing block. Slide grooves are provided on both sides of the unloading arm slide rail 73, and clamping pulleys are provided on both sides of the lower part of the unloading arm slide 74. The unloading arm slide 74 clamps the slide grooves provided on both sides of the unloading arm slide rail 73 through the clamping pulleys provided on both sides; the unloading arm slide rail 73 is installed on the second upper lifting frame; the working principle is: the PLC controller controls the unloading arm motor 61 to rotate forward, and the unloading arm main drive sprocket is driven by the chain and the unloading arm The passive sprocket drives the unloading arm transmission shaft 62 to rotate, and multiple groups of unloading arm output active sprockets synchronously drive each group of unloading arm transition passive sprockets to rotate through chains. The unloading arm transition passive sprocket drives the unloading arm active sprocket 67 to rotate, and the unloading arm active sprocket 67 drives the unloading arm passive sprocket 68 to rotate through the unloading arm chain. At this time, the feeding arm slide 24 clamps the slide grooves on both sides of the unloading arm slide rail 73 through the clamping pulleys on both sides, and drives the unloading arm 75 to move in a straight line and extend forward through the unloading arm chain, and moves to the positioning sensor to stop.

[0034] As attached Figure 3 As shown, the synchronous belt conveying mechanism of the present invention includes a conveyor belt motor 41 installed on a frame 1, a reduction gear box 42, a conveyor belt transmission shaft 43, a plurality of synchronous driving gears 44 installed on the conveyor belt transmission shaft 43, a plurality of conveyor belt support rods 45 horizontally and parallelly arranged on a plurality of columns 131, a conveyor belt driving pulley 46 installed at the rear end of the conveyor belt support rod 45, a synchronous driven gear 47 coaxially installed with the conveyor belt driving pulley 46, a chain connecting the synchronous driving gear 44 and the synchronous driven gear 47, a conveyor belt driven pulley 48 installed at the front end of the conveyor belt support rod 45, and a conveyor belt sleeved on the conveyor belt driving pulley 46 and the conveyor belt driven pulley 48.

[0035] As attached Figure 4 As shown, the framing mechanism of the present invention includes a material frame 51, a framing machine motor 52, a driving pulley 53 arranged at the output end of the framing machine motor 52, a framing machine transmission shaft 54, a passive pulley 55 arranged on the framing machine transmission shaft 54 ​​and connected to the driving pulley 53 by a belt, and an elevator 50 installed at both ends of the framing machine transmission shaft 54, wherein the elevator 50 includes an elevator mounting seat 56, an elevator box body arranged on the upper part of the elevator mounting seat 56, a lifting screw passing through the elevator box body, a worm gear installed in the elevator box body and a worm gear connected to the worm gear The worm is meshed with external teeth, the worm wheel is provided with a middle hole, the middle hole is provided with an internal thread, the worm wheel is spirally sleeved on the outside of the lifting screw through the internal thread, the input end of the worm is connected to the frame assembling machine transmission shaft 54, the upper part of the lifting screw is connected to the aluminum profile support plate 57, the lifting screw at the lower part of the lift box is provided with a screw protection cylinder 58, the two sides of the screw protection cylinder 58 are respectively provided with guide cylinders 59 parallel to the screw protection cylinder 58, the upper part of the guide cylinder 59 passes through the guide hole provided in the lift mounting seat 56 and is connected to the lower part of the aluminum profile support plate 57. Guardrails are installed at both ends of the material frame 51, and electric monitoring cameras are installed on the guardrails. Working principle: The PLC controller controls the forward and reverse rotation of the frame loader motor 52, and drives the frame loader transmission shaft 54 ​​to rotate through the active pulley 53 and the passive pulley 55. The elevator 50 connected at both ends of the frame loader transmission shaft 54 ​​cooperates with the worm and worm wheel arranged at both ends of the frame loader transmission shaft 54, and the worm wheel is installed in the elevator box. The elevator box and the elevator mounting seat 56 are fixed. The worm wheel rotates in the elevator box, forcing the lifting screw matched with the inner thread of the hole therein to rise and fall, and the aluminum profile support plate 57 also rises and falls.

[0036] In this embodiment, the first inclined rail lifting plate 13 is symmetrically installed on both sides of the middle part of the first middle layer thrust frame 21, the first lower U-shaped groove roller 111 is provided at the position of the first inclined rail lifting plate 13 on both sides of the middle part of the bottom frame 11, and the first upper U-shaped groove roller 112 is provided at the position of the first inclined slide rail 14 on both sides of the middle part of the first upper layer lifting frame 22; the second inclined rail lifting plate is symmetrically installed on both sides of the middle part of the second middle layer thrust frame, the second lower U-shaped groove roller is provided at the position of the second inclined rail lifting plate on both sides of the middle part of the bottom frame 11, and the second upper U-shaped groove roller is provided at the position of the second inclined slide rail on both sides of the middle part of the second upper layer lifting frame.

[0037] In this embodiment, six sets of feeding arms 25 and unloading arms 75 are provided; six sets of synchronous driving gears 44 are provided, six conveyor belt support rods 45 are provided, and six conveyor belts are provided.

[0038] In this embodiment, a first transverse push rod 19 is provided on the first middle-layer thrust frame 21, and the extension and retraction direction of the piston rod of the first lifting cylinder 10 is parallel to the projection direction of the first inclined slide rail 14 of the first inclined rail lifting plate 13 on the ground, and the piston rod of the first lifting cylinder 10 is fixedly connected to the first transverse push rod 19; a second transverse push rod is provided on the second middle-layer thrust frame, and the extension and retraction direction of the piston rod of the second lifting cylinder is parallel to the projection direction of the first inclined slide rail of the second inclined rail lifting plate on the ground, and the piston rod of the second lifting cylinder is fixedly connected to the second transverse push rod.

[0039] In this embodiment, a material blocking device is provided on one side of the unloading arm 75, and the material blocking device includes a mounting plate 81 fixed on one side of the unloading arm 75, and a material blocking cylinder 82 installed on the mounting plate 81. The piston rod of the material blocking cylinder 82 faces the unloading arm 75, and a pressure pad plate 83 is fixed to the end of the piston rod.

[0040] The present invention is mainly composed of 6 conveyor belts, 6 feeding arms 25, 6 unloading arms 75, 2 sets of screw screw elevators 50 and other mechanisms. Through the combination of PLC, touch screen, frequency converter and encoder, automatic framing is realized by program control.

[0041] The present invention can also adopt a servo motor to replace the frequency conversion and encoder control.

[0042] The specific framing process of the present invention is as follows:

[0043] (1) The automatic frame loader is started, and the frame loader motor 52 rotates forward, driving the left and right two screw screw elevators 50 to the highest position through the transmission mechanism composed of a synchronous belt and a transmission shaft.

[0044] (2) The discharge arm motor 61 rotates forward and drives the discharge arm 75 to move linearly through the sprocket chain transmission mechanism and extend to the top of the material frame 51.

[0045] (3) Manually place the horizontal strips on the unloading arm 75.

[0046] (4) The material blocking cylinder 82 extends out, and the pressure pad plate 83 installed at its front end presses the rear end of the horizontal strip.

[0047] (5) The finished aluminum profiles after being cut by the finished product saw are transported to the conveyor belt of the framing machine through the conveyor belt.

[0048] (6) The conveyor belt motor 41 rotates and drives the conveyor belt to rotate through the gear mechanism, and the profile is transported to the set position and stops.

[0049] (7) The feeding arm 25 is moved upward by the lifting cylinder to lift the aluminum profile.

[0050] (8) The feeding arm motor 31 rotates forward and drives the feeding arm 25 to move linearly through the sprocket chain mechanism.

[0051] The sensor moves out and stops at the positioning sensor.

[0052] (9) The first lifting cylinder 10 moves downward to place the aluminum profile on the unloading arm 75.

[0053] (10) The feeding arm motor 31 rotates in the reverse direction, driving the feeding arm 25 to return to its original position.

[0054] (11) The unloading arm motor 61 reverses and moves back, and the pressure pad plate 83 blocks the horizontal strips and profiles and moves back.

[0055] Thereby, the horizontal strips and the profiles are unloaded onto the aluminum profile support plate 57 of the elevator 50. (Because the first layer of horizontal strips have no storage support, they will fall to the bottom of the material frame 51 and need to be taken out manually. When unloading the second layer and later, the horizontal strips will stay between the two layers of profiles).

[0056] (12) When the first layer of material is unloaded, the elevator 50 starts the descending program and reverses. When it descends to the set material height of one layer, the frame machine motor 52 is turned off and the descent is completed. After the second layer of material is unloaded, the above action is repeated. In this way, each layer is lowered and the machine is turned off after it is full. Since the frame mechanism adopts the elevator 50, the horizontal strips slide down into the material frame 51 together with the profiles when unloading, and the actual production use proves that it can be unloaded smoothly.

[0057] Although the embodiments of the present invention have been shown and described, what is described are only some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, without departing from the principles and spirit of the present invention, various changes, modifications and substitutions of these embodiments without creative work are all within the scope of protection of the present invention.

Claims

1. An automatic framing device for extruded aluminum profiles, comprising a frame (1), a synchronous belt conveying mechanism arranged on the frame (1), a feeding mechanism, a discharge mechanism, a PLC controller, a touch screen, a frequency converter, an encoder, and a framing mechanism arranged at the front end of the feeding mechanism, the frame (1) comprising a bottom frame (11) and an upper bracket (12) and a plurality of columns (131), characterized in that: The feeding mechanism includes a feeding arm lifting and lowering mechanism and a feeding arm advancing and retreating mechanism, and the unloading mechanism includes a unloading arm lifting and lowering mechanism and a unloading arm advancing and retreating mechanism, wherein: The feeding arm lifting mechanism comprises a first lifting cylinder (10) mounted on a bottom frame (11), a first middle-layer thrust frame (21) and a first upper-layer lifting frame (22) arranged in sequence from bottom to top above the bottom frame (11), a piston rod of the first lifting cylinder (10) is connected to the first middle-layer thrust frame (21), the first middle-layer thrust frame (21) and the first upper-layer lifting frame (22) are both configured as quadrilateral frame bodies, the bottom frame (11) is provided with vertical first guide rods (17) at four corners corresponding to the first upper-layer lifting frame (22), the first upper-layer lifting frame (22) is provided with a first guide cylinder (18) matching the first guide rod (17), first inclined rail lifting plates (13) are symmetrically mounted on both sides of the two ends of the first middle-layer thrust frame (21), and the first inclined rail lifting plates (13) are vertical plates. A first inclined rail (14) is provided on the upper part of the first inclined rail lifting plate (13), a first limit stopper (15) is provided at the lowest position of the first inclined rail lifting plate (14), a first horizontal rail (16) is provided on the lower part of the first inclined rail lifting plate (13), first lower U-shaped groove rollers (111) are provided on both sides of the two ends of the bottom frame (11) corresponding to the position of the first inclined rail lifting plate (13), and first upper U-shaped groove rollers (112) are provided on both sides of the two ends of the first upper lifting frame (22) corresponding to the position of the first inclined rail (14); the first upper lifting frame (22) cooperates with the first inclined rail (14) through the first upper U-shaped groove roller (112), and the first middle thrust frame (21) cooperates with the first lower U-shaped groove roller (111) provided on the bottom frame (11) through the first horizontal rail (16) of the first inclined rail lifting plate (13); The unloading arm lifting mechanism comprises a second lifting cylinder installed on the bottom frame (11), a second middle layer thrust frame and a second upper layer lifting frame arranged in sequence from bottom to top above the bottom frame (11), a piston rod of the second lifting cylinder is connected to the second middle layer thrust frame, the second middle layer thrust frame and the second upper layer lifting frame are both configured as quadrilateral frame bodies, the bottom frame (11) is provided with vertical second guide rods at four corners corresponding to the second upper layer lifting frame, the second upper layer lifting frame is provided with a second guide cylinder matching the second guide rod, the second middle layer thrust frame is provided with a second cross rod, the extension direction of the piston rod of the second lifting cylinder is parallel to the projection direction of the second inclined rail of the second inclined rail lifting plate on the ground, and the piston rod of the second lifting cylinder is fixedly connected to the second The second inclined rail lifting plate is symmetrically installed on both sides of the two ends of the second middle layer thrust frame, the second inclined rail lifting plate is a vertical plate body, the upper part of the second inclined rail lifting plate is provided with a second inclined slide rail, the lowest position of the second inclined slide rail is provided with a second limit block, the lower part of the second inclined rail lifting plate is provided with a second horizontal slide rail, the two sides of the two ends of the bottom frame (11) are provided with second lower U-shaped groove rollers corresponding to the position of the second inclined rail lifting plate, the two sides of the two ends of the second upper layer lifting frame are provided with second upper U-shaped groove rollers corresponding to the position of the second inclined slide rail, the second upper layer lifting frame cooperates with the second inclined slide rail through the second upper U-shaped groove roller, and the second middle layer thrust frame cooperates with the second lower U-shaped groove roller provided on the bottom frame (11) through the second horizontal slide rail of the second inclined rail lifting plate; The length and width of the quadrilateral frame body formed by the second middle layer thrust frame and the second upper layer lifting frame are smaller than the length and width of the inner cavity formed by the quadrilateral frame body formed by the first middle layer thrust frame (21) and the first upper layer lifting frame (22); the first lifting cylinder (10) is installed on one side of the cavity surrounded by the first middle layer thrust frame (21) and the first upper layer lifting frame (22); the second middle layer thrust frame and the second upper layer lifting frame are installed in the frame surrounded by the first middle layer thrust frame (21) and the first upper layer lifting frame (22); the height of the second middle layer thrust frame is greater than the height of the first lifting cylinder (10); and the second lifting cylinder is installed on the other side of the frame surrounded by the first middle layer thrust frame (21) and the first upper layer lifting frame (22); The feeding arm advance and retreat mechanism comprises a feeding arm motor (31) arranged on a frame (1), a feeding arm transmission shaft (32), a feeding arm main drive sprocket (33) mounted on the output end of the feeding arm motor (31), a feeding arm driven sprocket (34) mounted on the feeding arm transmission shaft (32) and matched with the feeding arm main drive sprocket (33), a chain connecting the feeding arm main drive sprocket (33) and the feeding arm driven sprocket (34), a plurality of feeding arm output driving sprockets (35) mounted on the output end of the feeding arm transmission shaft (32), a feeding arm transition passive sprocket (36) mounted on the upper rear end of the first upper lifting frame (22) and chain-connected to the feeding arm output driving sprocket (35), a feeding arm driving sprocket (37) coaxially mounted with the feeding arm transition passive sprocket (36), and a feeding arm passive sprocket (38) mounted on the upper front end of the first upper lifting frame (22) and chain-connected to the feeding arm output driving sprocket (35). ), a feeding arm chain connecting a feeding arm driving sprocket (37) and a feeding arm driven sprocket (38), a plurality of feeding arm slide rails (23) mounted in parallel on a first upper lifting frame (22), a feeding arm slide seat (24) mounted on the feeding arm slide rails (23), a feeding arm (25) mounted at the front end of the feeding arm slide seat (24), and a positioning sensor mounted at the front end of the feeding arm slide seat (24), wherein the feeding arm slide seat (24) is provided with a feeding A feed arm chain fixing block (241), the feed arm slide (24) is fixed on the feed arm chain through the feed arm chain fixing block (241), slide grooves are provided on both sides of the feed arm slide rail (23), clamping pulleys are provided on both sides of the lower part of the feed arm slide (24), and the feed arm slide (24) clamps the slide grooves provided on both sides of the feed arm slide rail (23) through the clamping pulleys provided on both sides; the feed arm slide (24) is installed on the first upper lifting frame (22); The unloading arm advancing and retreating mechanism comprises an unloading arm motor (61) arranged on a frame (1), an unloading arm transmission shaft (62), an unloading arm main driving sprocket (63) installed at the output end of the unloading arm motor (61), and an unloading arm passive sprocket installed on the unloading arm transmission shaft (62) and matched with the unloading arm main driving sprocket, a chain connecting the unloading arm main driving sprocket and the unloading arm passive sprocket, a plurality of unloading arm output active sprockets installed at the output end of the unloading arm transmission shaft (62), an unloading arm transition passive sprocket installed at the upper rear end of the second upper lifting frame and chain-connected to the unloading arm output active sprocket, an unloading arm active sprocket (67) installed coaxially with the unloading arm transition passive sprocket, an unloading arm passive sprocket (68) installed at the upper front end of the second upper lifting frame and connected to the chain, and a unloading arm active sprocket (69) connected to the unloading arm active sprocket. 67) and a discharge arm chain of a discharge arm driven sprocket (68), a plurality of discharge arm slide rails (73) mounted in parallel on a second upper lifting frame, a discharge arm slide seat (74) mounted on the discharge arm slide rails (73), a discharge arm (75) mounted at the front end of the discharge arm slide seat (74), and a positioning sensor mounted at the front end of the discharge arm slide seat (74), wherein a discharge arm chain fixing block is provided on the side of the discharge arm slide seat (74), the discharge arm slide seat (74) is fixed on the discharge arm chain by the discharge arm chain fixing block, slide grooves are provided on both sides of the discharge arm slide rail (73), clamping pulleys are provided on both sides of the lower part of the discharge arm slide seat (74), and the discharge arm slide seat (74) clamps the slide grooves provided on both sides of the discharge arm slide rail (73) by the clamping pulleys provided on both sides; the discharge arm slide rail (73) is mounted on the second upper lifting frame; The synchronous belt conveying mechanism comprises a conveyor belt motor (41) mounted on a frame (1), a reduction gear box (42), a conveyor belt transmission shaft (43), a plurality of synchronous driving gears (44) mounted on the conveyor belt transmission shaft (43), a plurality of conveyor belt support rods (45) horizontally and parallelly arranged on a plurality of columns (131), a conveyor belt driving pulley (46) mounted at the rear end of the conveyor belt support rod (45), a synchronous driven gear (47) coaxially mounted with the conveyor belt driving pulley (46), a chain connecting the synchronous driving gear (44) and the synchronous driven gear (47), a conveyor belt driven pulley (48) mounted at the front end of the conveyor belt support rod (45), and a conveyor belt sleeved on the conveyor belt driving pulley (46) and the conveyor belt driven pulley (48); The framing mechanism comprises a material frame (51), a framing machine motor (52), a driving pulley (53) arranged at the output end of the framing machine motor (52), a framing machine transmission shaft (54), a passive pulley (55) arranged on the framing machine transmission shaft (54) and connected to the driving pulley (53) by a belt, and an elevator (50) installed at both ends of the framing machine transmission shaft (54), wherein the elevator (50) comprises an elevator mounting seat (56), an elevator box body arranged on the upper part of the elevator mounting seat (56), a lifting screw passing through the elevator box body, a worm gear installed in the elevator box body, and a driven pulley (55) connected to the worm gear. The worm is meshed with external teeth, the worm wheel is provided with a middle hole, the middle hole is provided with an internal thread, the worm wheel is spirally sleeved on the outside of the lifting screw through the internal thread, the input end of the worm is connected to the frame assembly machine transmission shaft (54), the upper part of the lifting screw is connected to the aluminum profile support plate (57), the lifting screw at the lower part of the lift box is provided with a screw protection tube (58), and the two sides of the screw protection tube (58) are respectively provided with guide tubes (59) parallel to the screw protection tube (58), and the upper part of the guide tube (59) passes through the guide hole provided on the lift mounting seat (56) and is connected to the lower part of the aluminum profile support plate (57).

2. The automatic framing device for extruded aluminum profiles according to claim 1, characterized in that: A first inclined rail lifting plate (13) is symmetrically mounted on both sides of the middle of the first middle layer thrust frame (21); first lower U-shaped groove rollers (111) are arranged on both sides of the middle of the bottom frame (11) at positions corresponding to the first inclined rail lifting plate (13); and first upper U-shaped groove rollers (112) are arranged on both sides of the middle of the first upper layer lifting frame (22) at positions corresponding to the first inclined slide rail (14); Second inclined rail lifting plates are symmetrically mounted on both sides of the middle of the second middle layer thrust frame, second lower U-shaped groove rollers are arranged at positions corresponding to the second inclined rail lifting plates on both sides of the middle of the bottom frame (11), and second upper U-shaped groove rollers are arranged at positions corresponding to the second inclined slide rails on both sides of the middle of the second upper layer lifting frame.

3. The automatic framing device for extruded aluminum profiles according to claim 1, characterized in that: The feeding arm (25) and the discharging arm (75) are provided with six sets; The synchronous driving gears (44) are provided in 6 groups, the conveyor belt support rods (45) are provided in 6 groups, and the conveyor belts are provided in 6 groups.

4. The automatic framing device for extruded aluminum profiles according to claim 1, characterized in that: The first middle-layer thrust frame (21) is provided with a first transverse push rod (19); the extension and retraction direction of the piston rod of the first lifting cylinder (10) is parallel to the projection direction of the first inclined slide rail (14) of the first inclined rail lifting plate (13) on the ground; and the piston rod of the first lifting cylinder (10) is fixedly connected to the first transverse push rod (19); The second middle layer thrust frame is provided with a second transverse push rod, the extension direction of the piston rod of the second lifting cylinder is parallel to the projection direction of the first inclined slide rail of the second inclined rail lifting plate on the ground, and the piston rod of the second lifting cylinder is fixedly connected to the second transverse push rod.

5. The automatic framing device for extruded aluminum profiles according to claim 1, characterized in that: Servo motors are used instead of frequency conversion and encoder control.

6. The automatic framing device for extruded aluminum profiles according to claim 1, characterized in that: A material blocking device is provided on one side of the discharge arm (75), the material blocking device comprising a mounting plate (81) fixed to one side of the discharge arm (75), and a material blocking cylinder (82) mounted on the mounting plate (81), the piston rod of the material blocking cylinder (82) facing the discharge arm (75), and a pressure pad strip (83) fixed to the end of the piston rod.

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