Improved profile feeding mechanism

Abstract

An improved profile feeding mechanism comprises an introduction block arranged at the axial front of a material guide trough body, wherein the introduction block is provided with an introduction hole along the axial direction, the introduction hole is trumpet-shaped so as to have a trumpet mouth and a small port adapted to the outer diameter of the cut profile, and the trumpet mouth faces the material guide trough cavity; viewed from the cross-sectional direction of the material guide trough body, the material guide trough body comprises a left vertical wall surface, a right vertical wall surface and a horizontally arranged bottom wall surface located between the left vertical wall surface and the right vertical wall surface, the width of the bottom wall surface in the horizontal direction is less than or equal to the trumpet mouth diameter of the introduction block, and the width of the bottom wall surface in the horizontal direction is arranged to allow the cut profile placed on the bottom wall surface to swing in the horizontal direction; and also comprises a pushing mechanism, the pushing mechanism comprises a pusher capable of moving back and forth in the front-rear direction, at least a part of the pusher is arranged in the material guide trough cavity, and the size of the gap between the pusher sunk into the material guide trough cavity and the wall surface of the material guide trough body is arranged to prevent the cut profile from being stuck in the gap.

Description

Technical Field

[0001] The invention relates to the technical field related to profile cutting processing, and in particular to a feeding mechanism for providing materials for cutting processing. Background Art

[0002] With the continuous advancement of industrial technology, more and more profile processing machinery now adopts automated control technology, which is not only reflected in the processing procedures of profiles, such as cutting or stamping forming procedures, but also in the feeding procedure before profile processing and the receiving procedure after profile processing. Among them, the feeding procedure has a more prominent impact on the profile processing procedure. Traditional manual feeding requires manual feeding of materials to the machine, which not only has high labor intensity for workers but also has low efficiency. In order to improve processing production efficiency and improve profile processing accuracy, automatic feeding mechanisms have emerged. Common automatic feeding mechanisms generally include a trough and a pushing mechanism, wherein the trough is a V-shaped trough, and the pushing mechanism includes a push plate that cooperates with the trough and a driving member that drives the push plate to move along the length direction of the trough. The trough is arranged between the storage tank and the cutting mechanism. On the one hand, it is used to receive the profiles transported from the storage tank, and on the other hand, the profiles are pushed into the cutting mechanism through the pushing mechanism, so that the cutting mechanism can perform the profile processing procedure.

[0003] The material trough generally includes at least two inclined trough walls, the inner surfaces of the two trough walls form a V-shaped angle, and after the profile enters the material trough, the inner surfaces of the two trough walls of the material trough serve as the wall surfaces supporting the profile, which has the advantage that the two trough walls can contact the profile at the same time and provide support for the profile, and at the same time, the two trough walls of the material trough provide left and right limit for the profile, so that the profile can be stably placed in the material trough. However, in actual use, not only does it need to push the profile forward, but in order to be able to cut a certain shape of profile, it is sometimes necessary to rotate the profile during cutting. When the profile and the material trough move relative to each other, the profile and the two groove walls of the V-shaped groove will generate a large friction force, which not only affects the service life of the V-shaped groove but may also affect the processing quality of the workpiece. Summary of the invention

[0004] The V-shaped trough used in the prior art is used to support the cut profile and to allow the cut profile to slide on its wall surface. When the cut profile is conveyed forward or rotated, the cut profile and the two wall surfaces will generate a large friction force, which requires increasing the power of the pushing mechanism to push the cut profile. This actually accelerates the abrasion rate of the groove wall and shortens the service life of the V-shaped groove. What's worse, it will scratch the surface of the profile during the friction process and affect the processing quality. In order to reduce the friction between the material trough and the profile and improve the service life of the feeding mechanism, the present invention proposes an improved profile feeding mechanism, the feeding mechanism includes a machine base, a material guide trough body arranged on the machine base and extending axially, the material guide trough body includes a material guide trough cavity with a notch facing upward, and the material guide trough body is used to support the cut profile; it is characterized in that it also includes an introduction block arranged in the axial front of the material guide trough body, the introduction block is axially provided with an introduction hole, the introduction hole is trumpet-shaped so as to have a trumpet mouth and a small port adapted to the outer diameter of the cut profile, the trumpet mouth faces the material guide trough cavity; from the cross-sectional direction of the material guide trough body, the material guide trough body includes a left vertical A wall surface, a right vertical wall surface and a horizontally arranged bottom wall surface located between the left vertical wall surface and the right vertical wall surface, the width of the bottom wall surface in the horizontal direction is less than or equal to the diameter of the bell mouth of the introduction block, and the width of the bottom wall surface in the horizontal direction is arranged to allow the cut profile placed on the bottom wall surface to swing in the horizontal direction; it also includes a pushing mechanism, the pushing mechanism includes a pusher that can move back and forth in the front and rear directions, at least part of the pusher is arranged in the guide trough cavity, and the gap size between the pusher sunk into the guide trough cavity and the wall surface of the guide trough body is arranged to not allow the cut profile to be stuck in the gap.

[0005] Among them, the introduction block is a component arranged in the axial front of the material guide trough body to guide the cut profile to be output in a specified direction. The bell mouth of the introduction block is not only larger than the outer diameter of the cut profile, but also larger than the width of the bottom wall in the horizontal direction. Even if there is a certain misalignment between the center line of the introduction hole and the cut profile, the cut profile output from the material guide trough body can move forward along the wall of the introduction hole and be output from the small port as long as it can fall into the bell mouth of the introduction block, which greatly improves the output accuracy of the feeding mechanism.

[0006] Among them, the material guide trough body is a component for supporting the cut profile, and the left vertical wall surface, right vertical wall surface and bottom wall surface of the material guide trough body define the material guide trough cavity from the left side, right side and bottom edge respectively. The material guide trough body has an upward notch so that the cut profile with a diameter smaller than the notch width can be conveniently placed in the material guide trough cavity, and the front end portion of the material guide trough body is also provided with a front opening for the output of the cut profile. In order to facilitate the manufacture of the material guide trough body, the upward notch and the front opening can be connected; further, in order to ensure that the cut profile is not easy to roll out of the material guide trough body, the height of the left vertical wall surface and the right vertical wall surface can also be slightly higher than the radius of the cut profile.

[0007] The left vertical wall, the right vertical wall and the bottom wall are the outer surfaces of the left vertical wall, the right vertical wall and the bottom wall constituting the material guide trough body, the left vertical wall and the right vertical wall are arranged opposite to each other, and the bottom wall is arranged between the left vertical wall and the right vertical wall; the width of the bottom wall in the horizontal direction can be the same as the width of the bottom of the material guide trough cavity, and the cut profile placed on the bottom wall can swing in the horizontal direction, that is, the contact between the cut profile and the material guide trough body may be the following situations: the first one is that the cut profile only contacts the bottom wall, in which case only friction occurs between the cut profile and the bottom wall; the second one is that the cut profile contacts the bottom wall, the left vertical wall (or the right vertical wall) The third type is that the cut profile is in contact with the bottom wall, the left vertical wall and the right vertical wall. In this case, friction occurs between the cut profile and the two walls of the bottom wall and the left vertical wall (or the right vertical wall). However, since the left vertical wall or the right vertical wall of the material guide trough body is not a load-bearing wall, the friction between the cut profile and the left vertical wall or the right vertical wall is relatively small. The third type is that the cut profile is in contact with the bottom wall, the left vertical wall and the right vertical wall. In this case, only a small part of the wall of the cut profile is in contact with the left vertical wall and the right vertical wall because the cut profile is placed obliquely. The contact area is very small and the corresponding friction is also very small. Generally speaking, the friction in these three cases is smaller than that in the traditional technology, which is conducive to the transportation of the cut profile.

[0008] Among them, the pusher is a component used to push the cut profile placed in the material guide trough cavity to the front of the material guide trough cavity, and the pusher can move back and forth in the front and rear directions, that is, it can push the cut profile forward and then return to the rear of the material guide trough cavity to achieve the purpose of continuous feeding.

[0009] Among them, the size of the gap between the pusher sunk into the material guide trough cavity and the wall of the material guide trough body is arranged to prevent the cut profile from being stuck in the gap. In order to allow the pusher to move back and forth freely, part or all of the pusher extending into the material guide trough cavity should leave a certain gap between it and the wall of the material guide trough body, and the diameter size of the cut profile should meet the processing range requirements of the machine. The size of the gap is controlled so that the cut profile can be pushed forward smoothly and will not be brought back when the pusher is retracted, thereby ensuring the stability of feeding.

[0010] According to the above technical scheme, compared with the prior art, the beneficial technical effects of the present invention are: first, the cut profile placed in the guide trough cavity is mainly supported by the bottom wall surface, and the left vertical wall surface and the right vertical wall surface mainly play the role of left and right limitation. Compared with the V-shaped groove of the prior art, the cut profile of the present invention mainly rubs against the bottom wall surface, while the friction force with the left vertical wall surface and the right vertical wall surface is relatively small. On the one hand, this is conducive to reducing the wear of the bottom wall of the guide trough body to extend the service life of the guide trough body, and on the other hand, it can make the cut profile slide smoothly in the guide trough body so as to facilitate the pusher to push; second, the cut profile can swing in the horizontal direction on the bottom wall surface, which means that the cut profile is in the The loose arrangement in the material guide trough cavity makes the contact area between the left vertical wall and the right vertical wall and the cut profile relatively small, thereby further reducing the wear of the left and right walls of the material guide trough body to extend the service life of the material guide trough body; thirdly, due to the loose arrangement of the cut profile in the material guide trough cavity, the cut profile output from the front end of the material guide trough cavity may be offset, and the horn-shaped introduction hole of the introduction block can effectively receive and guide the cut profile to be transported from the small port to the next processing step, greatly improving the output stability of the feeding mechanism; fourthly, the pushing mechanism can effectively push the cut profile forward through the pusher and effectively reduce the problem of jamming with the cut profile, further ensuring the output stability of the feeding mechanism.

[0011] In order to reduce the wear of the wall of the material guide trough, a further technical solution may be that a wear-resistant pad layer is laid on the material guide trough, and the outer wall surfaces of the wear-resistant pad layer arranged in the left, right and bottom directions respectively form the left vertical wall surface, the right vertical wall surface and the bottom wall surface. The wear-resistant pad layer is a component with good wear resistance, and the outer wall surface of the wear-resistant pad layer mainly refers to the wall surface of the side of the wear-resistant pad layer used to define the material guide trough cavity. Laying the wear-resistant pad layer is conducive to slowing down the wear speed of the material guide trough body and thus prolonging the service life of the material guide trough body.

[0012] The pusher is a component that pushes the cut profile. In order to enable the pusher to move back and forth stably, a further technical solution may be that the pusher mechanism also includes a drive motor located outside the guide trough cavity and a chain that is connected to the drive motor. The pusher and the chain are connected by a transition plate so that when the drive motor rotates forward and reverse, the pusher can be dragged to move back and forth in the front and rear directions through the chain and the transition plate. Among them, the chain is a component that is arranged axially along the guide trough body and can rotate forward or reverse under the drive of the drive motor. By cooperating with the travel switch mentioned below, the maximum travel of the pusher's forward and backward movement can be controlled to enable the pusher to move back and forth. In order to enable the pusher and the transition plate to move smoothly, the pusher mechanism also includes a guide rail arranged outside the guide trough cavity, and the transition plate is slidably connected to the guide rail. In this way, by utilizing the guiding effect of the guide rail, the pusher can maintain a stable gap with the outer wall of the guide trough body when moving in the guide trough cavity, which not only ensures the smooth movement of the pusher, but also reduces the risk of the cut profile being stuck in the gap.

[0013] Of course, the pushing mechanism can also be arranged on the basis of a wear-resistant pad layer laid on the material guide trough body, and the part of the pusher arranged in the material guide trough cavity leaves a gap with the wear-resistant pad layer. Similarly, the size of the gap is arranged to allow the cut profile to be inserted into the gap; in this way, the feeding mechanism can perform a pushing action in the material guide trough cavity defined by the wear-resistant pad layer.

[0014] The feeding mechanism can also be connected with the feeding process of the previous level. In order to enable the cut profiles to be conveniently placed in the feeding mechanism, a further technical solution can also be that the material guide trough body is composed of at least two front and rear sections of wire bodies, and there is a wire body spacing between the front and rear sections of the wire body; it also includes a feeding device arranged on the side of the material guide trough body, and the feeding device includes a lifting arm that can be moved in a lifting manner, and the lifting arm is used to convey the cut profiles to the material guide trough cavity, and the lifting arm passes through the wire body spacing during the lifting process. Among them, the wire body spacing refers to the space with a certain spacing between two adjacent sections of the wire body, and the wire body spacing allows the lifting arm to pass (go through). Of course, in order to better support the cut profile, the lifting arm can be provided with two or more, and the number of the wire body spacing can be matched with the lifting arm. The lifting arm can even pass through the axial two end spaces of the material guide trough body; in this way, the lifting arm can move downward from the top of the material guide trough body with the cut profile, and when the lifting arm passes through the wire body spacing, the cut profile just falls into the material guide trough cavity, thereby completing the placement of the cut profile into the feeding mechanism.

[0015] The feeding mechanism serves as a profile conveying mechanism. In order to effectively control the pushing mechanism to push the cut profile to the next process, the cut profile is generally pushed to an initial position first. A further technical solution may also be that the feeding mechanism also includes a controller and a limiting mechanism. The limiting mechanism includes a moving cylinder controlled by the controller and a limiting plate that can extend into or exit the front end of the guide groove cavity under the drive of the moving cylinder. The controller is used to control the moving cylinder to drive the limiting plate to extend into the guide groove cavity. The limiting plate is used to resist the front end edge of the cut profile when it extends into the guide groove cavity. Among them, the limit plate is a limit component used to limit the movement of the cut profile. When the limit plate extends into the front end of the guide groove cavity, the limit plate just extends between the pusher and the introduction block and can block the cut profile from moving forward, becoming a temporary positioning device for the cut profile before being pushed out of the guide groove cavity for cutting, and also forming a temporary positioning initial position, effectively improving the feeding stability and accuracy of the feeding mechanism.

[0016] Although the limit mechanism can limit the initial position of the cut profile to be conveyed to the next process, in order to allow the pusher to stop pushing the cut profile after pushing it to the specified position, a further technical solution can also be that the limit mechanism also includes a sensor switch connected to the controller by signal, the sensor switch is arranged on the limit plate or on one side of the limit plate, the sensor switch is used to sense the leaning action of the front edge of the cut profile against the limit plate and transmit the leaning signal corresponding to the leaning action to the controller, the controller is used to respond to the leaning signal and immediately control the pusher to pause pushing the cut profile and then further control the limit plate to withdraw from the guide groove cavity. Among them, the sensor switch can be a contact sensor switch or a non-contact sensor switch. The contact sensor switch outputs a leaning signal to the controller by contacting with the limit plate or the cut profile. The contact sensor switch has a simple structure and low cost, while the non-contact sensor switch can be a switch similar to a Hall sensor switch. The non-contact sensor switch can sense the position of the cut profile moving close to the limit plate without contacting the cut profile. By setting the induction switch, the pusher can be controlled to stop pushing after the cut profile is pushed into place.

[0017] Although the controller and the induction switch can control the pusher to stop pushing the cut profile, in order to buffer the contact impact force between the cut profile and the limit plate, and to allow the limit plate to smoothly detach from the cut profile and exit the guide groove cavity, a further technical solution can also be that the pusher mechanism also includes a buffer, and the pusher and the transition connecting plate are connected by the buffer, and the buffer can allow the pusher and the transition connecting plate to be elastically relatively close to and relatively far away from each other. By setting the buffer, a buffer transition can be formed when the pusher collides with the cut profile, which can not only effectively reduce the instantaneous impact force of the pusher and the cut profile, but also leave space for the pusher and the cut profile to retreat backwards so that the limit plate can smoothly exit from the guide groove cavity, effectively reducing the risk of the limit plate being stuck, and greatly improving the operating reliability of the feeding mechanism.

[0018] When there is no cut profile in the guide trough, operating the pusher mechanism to push the material will cause energy waste. A further technical solution can also be that the feeding mechanism also includes a material sensor whose signal is connected to the controller. The material sensor is used to sense the information that the cut profile has entered the guide trough cavity and transmit the material signal corresponding to the material entry information to the controller. The controller is used to respond to the material signal and control the pusher to push the cut profile forward. In this way, the material sensor can accurately sense whether the cut profile has entered the guide trough cavity, thereby realizing precise push control and effectively reducing energy waste.

[0019] The travel of the pusher to move back and forth under the drag of the chain and the transition connecting plate is limited. A further technical solution can also be that a first travel switch and a second travel switch are also provided on the forward path of the pusher, and the first travel switch and the second travel switch are respectively connected to the controller, the first travel switch is used to limit the forward limit position of the pusher and transmit the first position signal corresponding to the forward limit position reached by the pusher to the controller, the controller is used to respond to the first position signal and control the pusher to return, the second travel switch is used to limit the backward limit position of the pusher and transmit the second position signal corresponding to the backward limit position reached by the pusher to the controller, the controller is used to respond to the second position signal and control the pusher to stop retreating. In this way, the moving travel of the pusher can be effectively controlled to ensure the continuity and stability of the feeding mechanism in conveying the cut profiles.

[0020] Since the present invention has the above characteristics and advantages, it can be applied to a feeding mechanism for providing materials for cutting processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the axial structure of a cutting machine using the feeding mechanism;

[0022] Figure 2 is a schematic diagram of the structure of the feeding mechanism in a front view direction;

[0023] Figure 3 yes Figure 2 Schematic diagram of the AA section structure;

[0024] Figure 4 yes Figure 2 The schematic diagram of the local enlarged structure at M in the middle;

[0025] Figure 5 is a schematic diagram of the axial structure of the introduction block;

[0026] Figure 6 It is a schematic diagram of the axial structure of the material guide trough body. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical solution of the present invention, the structure of the feeding mechanism applying the technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0028] like Figures 1 to 6 As shown, a profile laser cutting machine includes a cutting machine body and a material preparation device, the material preparation device includes a storage mechanism, a feeding mechanism and a loading device arranged between the storage mechanism and the feeding mechanism, the loading device includes a slide rail 11 arranged at intervals along the axial direction, the slide rail 11 is used to transport the cut profile in the storage mechanism to the feeding mechanism, the storage mechanism includes a support frame 12 arranged at intervals and a loading belt 13 connected to the slide rail 11. The support frame 12 is used to store the cut profile, the loading belt 13 can lift the cut profile upward so that the cut profile moves to the slide rail 11, and the cut profile moves along the slide rail 11 to the feeding mechanism, and the cut profile can be transported to the cutting machine through the feeding mechanism.

[0029] The feeding mechanism includes a base 2 and a material guide trough body 3 arranged on the base 2 and extending axially. The material guide trough body 3 includes a material guide trough cavity 30 with a notch facing upward. The base 2, as a supporting component of the material guide trough body 3, can well support the material guide trough body 3, the cut profile and other components of the feeding mechanism. The material guide trough body 3 is used to support the cut profile. In order to reduce the friction between the material guide trough body 3 and the cut profile and increase the service life of the feeding mechanism, the material guide trough body 3 is improved compared to the V-shaped groove of the prior art. Figure 1~Figure 5As shown, from the cross-sectional direction of the material guide trough body 3, the material guide trough body 3 includes a left vertical wall body 31, a right vertical wall body 32 and a bottom wall body 33, wherein the bottom wall body 33 is arranged between the lower ends of the left vertical wall body 31 and the right vertical wall body 32. In one embodiment, the bottom wall body 33 and the lower ends of the left vertical wall body 31 and the right vertical wall body 32 can be separated, and they are independently connected to the machine base 2; in another embodiment, as shown in FIG. Figure 3 As shown, the bottom wall 33 is connected with the left vertical wall 31 and the right vertical wall 32 and is integrally formed and connected to the machine base 2, which greatly improves the structural strength of the material guide trough 3. The left vertical wall 31 is provided with a left vertical wall surface 34, the right vertical wall 32 is provided with a right vertical wall surface 35, and the bottom wall 33 is provided with a bottom wall surface 36, and the bottom wall surface 36 is arranged horizontally, so that the left vertical wall surface 34, the right vertical wall surface 35 and the bottom wall surface 36 define the material guide trough cavity 30 from the left side, the right side and the bottom surface respectively. Since the upper part of the material guide trough 3 is open, the top edges of the left vertical wall surface 34 and the right vertical wall surface 35 define the upward notch, and the cut profile falls into the material guide trough cavity 30 through the notch. Among them, the bottom wall 33 is the main wall of the guide trough body 3 that supports the cut profile. The friction between the cut profile and the guide trough body 3 is mainly concentrated on the bottom wall surface 36, and the width of the bottom wall surface 36 in the horizontal direction is arranged to allow the cut profile placed on the bottom wall surface 36 to swing in the horizontal direction. In this way, the left vertical wall surface 34 and the right vertical wall surface 35 are mainly used to limit the range of movement of the cut profile in the horizontal direction rather than the load-bearing surface. In this way, even if the cut profile and the left vertical wall surface 34 (and / or the right vertical wall surface 35) are in contact with each other, the friction generated is very small. As can be seen from the above, compared with the traditional V-shaped groove, the guide trough body 3 structure of this embodiment can effectively reduce the friction between the cut profile and the cut profile, which is conducive to improving the service life of the guide trough body 3.

[0030] Since the overall replacement cost of the material guide trough body 3 is relatively high, although it can be arranged in a multi-stage interval arrangement to reduce the difficulty of installation, in order to protect the material guide trough body 3 and reduce the cost of use, a further technical solution may be that a wear-resistant pad layer is laid on the material guide trough body 3, wherein the wear-resistant pad layer is a component with good wear resistance, and the wear-resistant pad layer is mainly laid on the left vertical wall body 31, the right vertical wall body 32 and the bottom wall body 33 facing the side of the material guide trough cavity 30, wherein the left wear-resistant pad layer 41 is arranged on the left vertical wall body 31, the right wear-resistant pad layer 42 is arranged on the right vertical wall body 32, and the bottom wear-resistant pad layer 43 is arranged on the bottom wall body 33, so that the outer wall surfaces of the wear-resistant pad layers arranged in the left, right and bottom directions respectively form the left vertical wall surface 34, the right vertical wall surface 35 and the bottom wall surface 36. Among them, the outer wall surface of the wear-resistant pad layer mainly refers to the wall surface on the side of the material guide trough cavity 30 used to define the wear-resistant pad layer, which is equivalent to replacing the part of the wall surface of the left vertical wall 31, the right vertical wall 32 and the bottom wall 33 originally used to contact the cut profile. By laying the wear-resistant pad layer, it is beneficial to slow down the wear speed of the material guide trough body 3 and thus increase the service life of the material guide trough body 3; at the same time, since the laying and disassembly of the wear-resistant pad layer is easier, it is beneficial to reduce the use cost of the material guide trough body 3.

[0031] In order to better enable the feeding mechanism to accurately output the cut profile to the next processing step, such as Figure 1~Figure 3 As shown, the feeding mechanism also includes an introduction block 5 arranged in the axial front of the guide trough body 3, and the introduction block 5 is provided with an introduction hole 50 in the axial direction. The introduction hole 50 is trumpet-shaped and has a trumpet mouth 51 and a small port 52 adapted to the outer diameter of the cut profile, and the trumpet mouth 51 faces the guide trough cavity 30. The introduction block 5 is a component arranged in the axial front of the guide trough body 3 to guide the cut profile to be output in a specified direction. The trumpet mouth 51 of the introduction block 5 is not only larger than the outer diameter of the cut profile, but also the width of the bottom wall surface 36 in the horizontal direction is less than or equal to the diameter of the trumpet mouth 51 of the introduction block 5. Even if the center line of the introduction hole 50 is misaligned with the cut profile, the cut profile output from the guide trough cavity 30 can easily fall into the trumpet mouth 51 of the introduction block 5 and move forward along the wall of the introduction hole 50 and output from the small port 52, which greatly improves the output accuracy of the feeding mechanism.

[0032] In order to allow the cut profiles to be smoothly transported forward, Figure 1~Figure 5As shown, the feeding mechanism also includes a pushing mechanism, which includes a pusher 61 that can move back and forth in the front-back direction. At least part of the pusher 61 is arranged in the guide trough cavity 30. The pusher 61 is plate-shaped and the cross-sectional shape of the wall extending into the guide trough cavity 30 matches the guide trough cavity 30. In order to allow the pusher 61 to move back and forth in the axial direction in the guide trough cavity 30, a gap 60 is reserved between the pusher 61 and the left vertical wall surface 34, the right vertical wall surface 35 and the bottom wall surface 36. Moreover, the size of the gap 60 between the pusher 61 sunk into the guide trough cavity 30 and the wall surface of the guide trough body 3 is arranged to prevent the cut profile from being stuck in the gap 60. By controlling the size of the gap 60, the cut profile can be well prevented from being stuck in the gap 60 when being pushed forward and from being brought back when the pusher 61 is withdrawn, thereby ensuring the stability of feeding. Of course, the pushing mechanism can also be set up on the basis of the wear-resistant pad layer laid on the material guide trough body 3, and the part of the pusher 61 arranged in the material guide trough body 3 leaves a gap 60 with the wear-resistant pad layer. Similarly, the size of the gap 60 is arranged to allow the cut profile to be inserted into the gap 60; in this way, the feeding mechanism can achieve a stable pushing action on the wear-resistant material guide trough cavity 30.

[0033] The pusher 61 is a component for pushing the cut profile. In order to enable the pusher 61 to move back and forth stably, a further technical solution may be that the pusher mechanism also includes a drive motor 62 located outside the guide trough cavity 30, and a chain 63 connected to the drive motor 62. The pusher 61 and the chain 63 are connected by a transition connecting plate 64 so that when the drive motor 62 rotates forward and reverse, the pusher 61 can be dragged to move back and forth in the front and rear directions through the chain 63 and the transition connecting plate 64. Among them, the chain 63 is a component arranged axially along the guide trough body 3 and can rotate forward or reverse under the drive of the drive motor 62. In order to enable the pusher 61 and the transition connecting plate 64 to move smoothly, the pusher mechanism also includes a guide rail 65 arranged outside the guide trough cavity 30, and the transition connecting plate 64 is slidably connected to the guide rail 65. In this way, by utilizing the guiding effect of the guide rail 65, the pusher 61 can maintain a stable gap 60 with the wall of the guide trough body 3 when moving in the guide trough cavity 30, which not only ensures the smooth movement of the pusher 61, but also reduces the risk of the cut profile being stuck in the gap 60.

[0034] The feeding mechanism serves as a profile conveying mechanism. In order to effectively control the pushing mechanism to push the cut profile to the next process, the cut profile is generally pushed to an initial position first. A further technical solution may also be that the feeding mechanism also includes a controller (not shown in the figure) and a limiting mechanism. The limiting mechanism includes a moving cylinder 71 controlled by the controller and a limiting plate 72 that can extend into or exit the front end of the guide groove cavity 30 under the drive of the moving cylinder 71. The controller is used to control the moving cylinder 71 to drive the limiting plate 72 to extend into the guide groove cavity 30. The limiting plate 72 is used to resist the front end edge of the cut profile when it extends into the guide groove cavity 30. Among them, the limit plate 72 is a limit component used to limit the movement of the cut profile. When the limit plate 72 extends into the front end of the guide groove cavity 30, the limit plate 72 is just stuck between the pusher 61 and the introduction block 5 and can block the cut profile from moving forward, becoming a temporary positioning device for the cut profile before being pushed out of the guide groove cavity 30 for cutting, and also forming a temporary positioning initial position, which effectively improves the feeding stability and accuracy of the feeding mechanism.

[0035] Although the limiting mechanism can limit the initial position of the cut profile for conveying to the next process, in order to allow the pusher 61 to stop pushing the cut profile after it reaches the specified position, a further technical solution can also be that the limiting mechanism also includes a sensor switch 73 whose signal is connected to the controller, and the sensor switch 73 is arranged on the limiting plate 72 or on one side of the limiting plate 72. The sensor switch 73 is used to sense the leaning action of the front end of the cut profile against the limiting plate 72 and transmit the leaning signal corresponding to the leaning action to the controller. The controller is used to respond to the leaning signal and immediately control the pusher 61 to stop pushing the cut profile and then further control the limiting plate 72 to withdraw from the material guide trough cavity 30. In this embodiment, a non-contact induction switch is used, and the induction switch 73 is set on one side of the limit plate 72. When the pusher 61 pushes the cut profile against the limit plate 72, the induction switch 73 can sense that the cut profile is against the limit plate 72 and transmit a contact signal to the controller. By setting the induction switch 73, the pusher 61 can be controlled to stop pushing after the cut profile is pushed into place.

[0036] Although the controller and the induction switch 73 can control the pusher 61 to stop pushing the cut profile, in order to buffer the contact impact force between the cut profile and the limit plate 72, and to allow the limit plate 72 to smoothly detach from the cut profile and exit the guide groove cavity 30, a further technical solution can also be that the pusher mechanism also includes a buffer (not shown in the figure), and the pusher 61 and the transition connecting plate 64 are connected by the buffer, and the buffer can allow the pusher 61 and the transition connecting plate 64 to be elastically relatively close to and relatively far away from each other. By setting the buffer, a buffer transition can be formed when the pusher 61 collides with the cut profile, which can not only effectively reduce the instantaneous impact force of the pusher 61 and the cut profile, but also leave space for the pusher 61 and the cut profile to retreat backwards so that the limit plate 72 can smoothly exit from the guide groove cavity 30, effectively reducing the risk of the limit plate 72 being stuck, and greatly improving the operating reliability of the feeding mechanism.

[0037] When there is no cut profile in the guide groove cavity 30, operating the pusher mechanism to push the material will cause energy waste. A further technical solution can also be that the feeding mechanism also includes a material sensor 74 whose signal is connected to the controller. The material sensor 74 is used to sense the information that the cut profile has entered the guide groove cavity 30 and transmit the material signal corresponding to the information that the material has entered to the controller. The controller is used to respond to the material signal and control the pusher 61 to push the cut profile forward. In this way, the material sensor 74 can accurately sense whether the cut profile has entered the guide groove cavity 30, thereby realizing accurate push control and effectively reducing energy waste.

[0038] The travel of the pusher 61 to move back and forth under the drag of the chain 63 and the transition connecting plate 64 is limited. A further technical solution can also be that a first travel switch 75 and a second travel switch 76 are also provided on the forward path of the pusher 61. The first travel switch 75 and the second travel switch 76 are respectively connected to the controller. The first travel switch 75 is used to limit the forward limit position of the pusher 61 and transmit the first position signal corresponding to the forward limit position of the pusher 61 to the controller. The controller is used to respond to the first position signal and control the pusher 61 to return. The second travel switch 76 is used to limit the backward limit position of the pusher 61 and transmit the second position signal corresponding to the backward limit position of the pusher 61 to the controller. The controller is used to respond to the second position signal and control the pusher 61 to stop retreating. In this way, the moving travel of the pusher 61 can be effectively controlled to ensure the continuity and stability of the feeding mechanism in conveying the cut profiles.

[0039] The feeding mechanism can also be connected with the feeding process of the previous level. In order to facilitate the placement of the cut profiles in the feeding mechanism, a further technical solution is that the guide trough body 3 is composed of at least two front and rear sections of wire bodies, and there is a wire body spacing d between the front and rear sections of the wire bodies; it also includes a feeding device arranged on the side of the guide trough body 3, and the feeding device includes a lifting arm 8 that can be moved in a lifting manner, and the lifting arm 8 is used to transport the cut profiles to the guide trough cavity 30. The lifting arm 8 passes through the wire body spacing d during the lifting process. Specifically, Figure 1 As shown, there are five lifting arms 8, and the material guide trough body 3 composed of six sections of the wire body has five wire body spacings d matching the number of the lifting arms 8. The lifting arms 8 can move downward from the top of the material guide trough body 3 with the cut profiles, and when the cut profiles fall into the material guide trough body 3, the lifting arms 8 just continue to pass through the wire body spacing d downward and fall to the bottom of the material guide trough cavity 30. After the cut profiles are transported to the next level of processing, the lifting arms 8 can rise and pass through the wire body spacing d again to the top of the material guide trough cavity 30 and prepare for the next loading.

[0040] The cutting machine body includes a laser cutting head and a slag extraction device, wherein the laser cutting head is used to cut the cut profile fed into the cutting machine body, and the slag extraction device is used to extract the metal welding slag generated when the cut profile is laser cut. The slag extraction device includes a slag extraction pipe and a fan. In order to protect the fan and facilitate the cleaning of welding slag, a filtering device is also provided between the slag extraction pipe and the fan. The filtering device includes a filter box body with a side opening, a box cover body movable to cover the side opening, and a metal filter screen provided in the filter box body. An air inlet and an air outlet are arranged relatively to each other, the air inlet is connected to the slag extraction pipe, the air outlet is connected to the fan, the edge of the rectangular or cylindrical metal filter is connected to the wall around the air outlet, and a gap is left between the mesh wall of the metal filter and the filter box body. The metal filter can not only effectively intercept metal welding slag, but also the rectangular or cylindrical metal filter increases the interception area, which is beneficial to prolong the time that the metal filter is blocked by metal welding slag and greatly reduces the cleaning frequency of the filter device.

Claims

1. An improved profile feeding mechanism, comprising a machine base, a material guide trough body arranged on the machine base and extending axially, the material guide trough body comprising a material guide trough cavity with a notch facing upward, and the material guide trough body is used to support the cut profile; characterized in that: The cam is configured to have an inlet opening that is shaped like a trumpet and has a trumpet mouth and a small port that is adapted to the outer diameter of the cut profile, the trumpet mouth facing the guide trough cavity; when viewed from the cross-sectional direction of the guide trough body, the guide trough body comprises a left vertical wall, a right vertical wall and a horizontally arranged bottom wall between the left vertical wall and the right vertical wall, the width of the bottom wall in the horizontal direction is less than or equal to the trumpet mouth diameter of the inlet block, and the width of the bottom wall in the horizontal direction is arranged to allow the cut profile placed on the bottom wall to swing in the horizontal direction; the cam also comprises a pushing mechanism, the pushing mechanism comprises a pusher that can move back and forth in the front-rear direction, at least a part of the pusher is arranged in the guide trough cavity, and the gap between the pusher sunk into the guide trough cavity and the wall of the guide trough body is arranged to prevent the cut profile from being stuck in the gap.

2. The improved profile feeding mechanism according to claim 1, characterized in that: A wear-resistant pad layer is provided on the material guide trough body, and the outer side walls of the wear-resistant pad layer arranged in the left, right and lower directions respectively form the left vertical wall surface, the right vertical wall surface and the bottom wall surface.

3. The improved profile feeding mechanism according to claim 1, characterized in that: The pusher mechanism also includes a driving motor located outside the material guide trough cavity and a chain connected to the driving motor. The pusher is connected to the chain via a transition connecting plate so that when the driving motor rotates forward and reverse, the pusher can be dragged to move back and forth in the front and rear directions through the chain and the transition connecting plate.

4. The improved profile feeding mechanism according to claim 3, characterized in that: It also includes a guide rail arranged outside the guide trough cavity, and the transition connecting plate is slidably connected to the guide rail.

5. The improved profile feeding mechanism according to claim 3, characterized in that: The material guide trough body is composed of at least two front and rear sections of wire bodies, and there is a wire body distance between the front and rear sections of the wire body; it also includes a loading device arranged on the side of the material guide trough body, and the loading device includes a lifting arm that can be moved in a lifting manner. The lifting arm is used to transport the cut profiles to the material guide trough cavity, and the lifting arm passes through the wire body distance during the lifting process.

6. The improved profile feeding mechanism according to any one of claims 1 to 5, characterized in that: It also includes a controller and a limiting mechanism, the limiting mechanism includes a moving cylinder controlled by the controller and a limiting plate that can extend into or withdraw from the front end of the material guide groove cavity under the drive of the moving cylinder, the controller is used to control the moving cylinder to drive the limiting plate to extend into the material guide groove cavity, and the limiting plate is used to resist the front end edge of the cut profile when it extends into the material guide groove cavity.

7. The improved profile feeding mechanism according to claim 6, characterized in that: It also includes an induction switch whose signal is connected to the controller, and the induction switch is arranged on the limit plate or on one side of the limit plate. The induction switch is used to sense the leaning action of the front end of the cut profile against the limit plate and transmit a leaning signal corresponding to the leaning action to the controller. The controller is used to respond to the leaning signal and immediately control the pusher to stop pushing the cut profile and then further control the limit plate to withdraw from the material guide trough cavity.

8. The improved profile feeding mechanism according to claim 6, characterized in that: The pusher mechanism also includes a buffer, and the pusher is connected to the transition connecting plate through the buffer. The buffer can allow the pusher and the transition connecting plate to be elastically relatively close to or relatively far away from each other.

9. The improved profile feeding mechanism according to claim 6, characterized in that: It also includes a material sensor whose signal is connected to the controller. The material sensor is used to sense the information that the cut profile has entered the material guide trough cavity and transmit a material signal corresponding to the material entry information to the controller. The controller is used to respond to the material signal and control the pusher to move the cut profile forward.

10. The improved profile feeding mechanism according to claim 6, characterized in that: A first travel switch and a second travel switch are also provided on the forward path of the pusher, and the first travel switch and the second travel switch are respectively connected to the controller. The first travel switch is used to limit the forward limit position of the pusher and transmit a first position signal corresponding to the pusher reaching the forward limit position to the controller, and the controller is used to respond to the first position signal and control the pusher to return. The second travel switch is used to limit the backward limit position of the pusher and transmit a second position signal corresponding to the pusher reaching the backward limit position to the controller, and the controller is used to respond to the second position signal and control the pusher to stop retreating.

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