A control method of a filter bag frame welding machine capable of automatically supplying a support ring

Abstract

A control method of filter bag frame welding machine capable of automatically supplying support ring, comprising a machine shell, the machine shell has a cavity through which the material to be welded passes; the periphery of the cavity is provided with a plurality of annularly distributed electrodes, the electrodes are connected to a first driving device, and the first driving device drives the electrodes to approach and move away from the welding point; the control method further comprises a supply mechanism for supplying metal rings, the supply mechanism comprises a supply rack for regulating the welding material, a plurality of metal rings can be sleeved outside the supply rack, and a pushing device pushes the metal rings to move towards the welding position; the control method further comprises a release mechanism for controlling the release of the metal rings and a positioning mechanism for fixing the metal rings to be welded; the release mechanism comprises a first blocking piece for blocking the movement of the metal rings to be welded and a second blocking piece for blocking the movement of the metal rings to be welded next time, and the first blocking piece and the second blocking piece can be respectively arranged to move towards and away from the metal rings.

Description

Technical Field

[0001] This invention relates to a control method for a filter bag frame welding machine that can automatically supply support rings. Background Technology

[0002] Existing patent document CN102744509A discloses a dedicated spot welding machine for bag filter cages. The cages include multiple support rings evenly distributed vertically and multiple vertical ribs evenly distributed around the outer periphery of the support rings. The dedicated spot welding machine includes a resistance welding transformer and a spot welding control system. It also includes a clamp for holding the support rings and vertical ribs, and movable spot welding electrodes A' driven by pressure cylinder A and B' driven by pressure cylinder B. The number of movable spot welding electrodes A' corresponds to the number of vertical ribs. Equal numbers of movable spot welding electrodes, each corresponding to a vertical rib, are evenly distributed around the outer periphery of the cage frame. The number of movable spot welding electrodes B' is equal to the number of movable spot welding electrodes A', and they are evenly distributed around the inner periphery of the support ring, each corresponding to a vertical rib. Under the control of the spot welding control system, each movable spot welding electrode A' simultaneously presses against its corresponding vertical rib, and each movable spot welding electrode B' simultaneously presses against a corresponding point on the inner periphery of the support ring. The vertical ribs are simultaneously spot welded to the support ring through discharge between the corresponding movable spot welding electrodes A' and B'. The support ring in the above-mentioned welding machine requires manual placement, making automated supply impossible and failing to meet the requirements of automated production. Summary of the Invention

[0003] To overcome the above-mentioned defects, the purpose of this invention is to provide a control method for a filter bag frame welding machine that can automatically supply support rings.

[0004] The technical solution adopted in this invention is: a control method for a filter bag frame welding machine capable of automatically supplying support rings, comprising a housing having a cavity through which the material to be welded can pass; an electrode fixed to the housing is provided at the position of the cavity; and a supply mechanism for supplying support rings, the supply mechanism including a feeding rack for placing support rings, multiple support rings being sleeved on the feeding rack, and a pushing device pushing the support rings toward the welding position; further comprising a release mechanism for controlling the release of support rings and a picking mechanism for picking up support rings to be welded; the release mechanism including a first blocking member for obstructing the movement of the support ring to be welded and a second blocking member for obstructing the movement of the next support ring to be welded, the first blocking member and the second blocking member being movable toward and away from the support ring respectively; the picking mechanism including a movable slider, the slider being positioned corresponding to the support ring to be welded, the slider abutting against the support ring to be welded to pick up the support ring;

[0005] The first blocking member is positioned close to the support ring, thus blocking the movement of the support ring to be welded. The second blocking member is positioned close to the support ring, thus blocking the movement of the support ring to be welded next. The slider abuts against the support ring to be welded. The first blocking member moves away from the support ring. The slider carries the support ring to be welded to the welding position to weld and fix the longitudinal rib to the support ring. The slider moves away from the support ring and returns to a position that can support the support ring. The first blocking member moves closer to the support ring again. The second blocking member moves away from the support ring. The pushing device pushes the densely placed support rings forward. The original support ring to be welded next is blocked by the first blocking member and stops. The second blocking member moves closer to the support ring again to fix the new support ring to be welded next. The slider moves closer to the support ring again.

[0006] The feeding rack is provided with a number of pipes arranged in a ring outside, and the pipes are spaced apart and fixedly installed.

[0007] The pipe fitting includes an inner pipe through which straight longitudinal ribs can be inserted and an outer pipe disposed on the outer surface of the inner pipe, wherein the inner pipe and the outer pipe are insulated from each other.

[0008] An insulating layer is provided between the inner tube and the outer tube to insulate them from each other.

[0009] The pushing device can be a spring, one end of which pushes against the outermost support ring; or a cylinder, which pushes against the outermost support ring; or a hydraulic cylinder, which pushes against the outermost support ring; or a motor, which pushes against the outermost support ring; or a combination of a cylinder and a spring, where the cylinder is connected to the spring so that the spring pushes against the outermost support ring; or a combination of a hydraulic cylinder and a spring, where the hydraulic cylinder is connected to the spring so that the spring pushes against the outermost support ring; or a combination of a motor and a spring, where the motor is connected to the spring so that the spring pushes against the outermost support ring.

[0010] It also includes a second driving device for driving the first blocking member to move, the first blocking member being located on the outside of the support ring.

[0011] It also includes a third driving device for driving the movement of the second blocking member, which is located on the outside of the support ring.

[0012] It also includes a fourth driving device for driving the movement of the slider, which is located inside the support ring.

[0013] The unit has a base located near the welding position. The base is coaxially arranged with the feed rack and can move closer to and away from the electrode along its axial direction. There are at least two sliders, each of which is slidably connected to the base. The direction of movement of each slider and the base is perpendicular to the direction of movement of the support ring. When the slider moves closer to the support ring and abuts against it, the base is in a position away from the electrode. When the support ring is welded to the longitudinal rib, the base is in a position close to the electrode.

[0014] The first blocking member and the second blocking member are slidably connected, and there is a gap between the first blocking member and the second blocking member. The end of the second blocking member that acts on the support ring is sharp.

[0015] The electrode has a slot into which the slider can enter, and the slider is in the slot when the support ring is welded to the longitudinal rib.

[0016] The pushing device includes a cylinder. The cylinder operates to push the support ring to be welded until it is blocked by a first blocking member, and then the cylinder stops pushing; or, the cylinder operates to push the support ring to be welded until it is blocked by the first blocking member and the slider abuts the support ring to be welded, and then the cylinder stops pushing; or, the cylinder operates to push the support ring to be welded until it is blocked by the first blocking member, the slider abuts the support ring to be welded, and the second blocking member abuts the support ring to be welded, and then the cylinder stops pushing.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the welding machine of the present invention can realize the automated supply of support rings. Multiple support rings are densely stacked on the feeding rack. Through the coordinated cooperation of the release mechanism and the picking mechanism, the support rings can be picked up on demand, thereby realizing automated supply. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 for Figure 1 A structural diagram showing the process of removing the casing.

[0020] Figure 3 for Figure 2 A partially enlarged structural diagram of part A shown.

[0021] Figure 4 A schematic diagram of a structure in which support rings are densely nested on a feeding rack.

[0022] Figure 5 This is a schematic diagram of the dispensing mechanism.

[0023] Figure 6This is a structural diagram showing the combined state of the picking mechanism, feeding rack, and pipe fittings.

[0024] Figure 7 This is a structural schematic diagram of the pipe fitting. Detailed Implementation

[0025] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0026] Example:

[0027] like Figure 1-7As shown, a control method for a filter bag frame welding machine capable of automatically supplying support rings includes a housing 1. The housing 1 has a cavity 10 through which the material to be welded can pass. An electrode 8, which is fixed to the housing, is located in the cavity. This electrode can also be a central electrode. An outer ring electrode is provided around the central electrode, close to and far from the central electrode. In this embodiment, the welding material is mainly a straight longitudinal rib 9 and a support ring 0. The welding machine works by welding and fixing the longitudinal rib 9 to the support ring 0. It also includes a supply mechanism for supplying support rings 0, the supply mechanism including a feeding rack 2 for placing support rings 0. In use, multiple support rings 0 are densely stacked around the feeding rack 2. Multiple support rings 0 can be fitted around the feeding rack 2. The pushing device 6 pushes the support rings 0 to move in the welding direction. Preferably, the support ring 0 furthest from the welding position is pushed by an external force, thereby causing the support ring 0 to move closer to the welding position. It also includes a release mechanism 3 for controlling the release of support rings 0 and a pick-up mechanism for fixing the support rings 0 to be welded. The release mechanism 3 includes a first blocking member 31 for connecting and obstructing the movement of the support ring 0 to be welded and a second blocking member 32 for obstructing the movement of the next support ring 0 to be welded. The first blocking member 31 and the second blocking member 32 are distributed front and back. The first blocking member 31 and the second blocking member 32 are respectively movable towards and away from the support ring 0. Preferably, the first blocking member 31 moves towards the support ring 0, abutting against the support ring 0 closest to the welding position, i.e., the support ring 0 to be welded, thereby preventing the support ring 0 closest to the welding position from moving forward further. The second blocking member 32 moves towards the support ring 0, abutting against the support ring 0 behind the next support ring 0 closest to the welding position, i.e., the next support ring 0 to be welded, thereby preventing the next support ring 0 closest to the welding position from moving further. The first blocking member 31 is in a position close to the support ring to prevent its movement, and the second blocking member 32 is in a position close to the support ring to prevent the next support ring closest to the welding position from moving. The picking mechanism includes a movable slider 5, which is disposed corresponding to the support ring 0. The slider 5 abuts against the support ring 0 to be welded to pick up the support ring 0. Slider 5 abuts against the support ring closest to the welding position. After slider 5 abuts against support ring 0, the first blocking member 31 is welded to the position, the longitudinal rib is welded and fixed to the support ring, slider moves away from the support ring and returns to the position that can support the support ring, the first blocking member 31 moves closer to the support ring, the second blocking member 32 moves away from the support ring, the pushing device pushes the densely placed support rings forward, the support ring closest to the welding position is blocked by the first blocking member 31 and stops, the second blocking member 32 moves closer to the support ring again and fixes another support ring closest to the welding position, slider 5 takes the support ring again, thus completing the cycle. During this process, the filter bag frame has a forward movement.

[0028] In the above control scheme, due to limitations in wording, the wording may vary in sequence, but this does not restrict the time sequence of the control scheme. For example, during initial use, the first blocking member 31 and the second blocking member 32 can approach the support ring 0 simultaneously. After welding, the time it takes for the slider 5 to move away from the support ring 0 does not cause adverse interference. Those skilled in the art can adjust the timing based on the above structural foundation to complete the feeding. The steps are subject to sequential restrictions: the first blocking member 31 can only move away from the support ring 0 after the slider 5 abuts against the support ring 0 closest to the welding position; after the slider 5 moves away from the support ring and returns to a position that can support the support ring 5, the first blocking member 31 must approach the support ring first before the second blocking member 32 can move away from the support ring; before the slider 5 returns to a position that can support the support ring 5, the slider 5 needs to move away from the support ring 0.

[0029] Preferably, in this embodiment, the first blocking member 31 and the second blocking member 32 are slidably connected, there is a gap between the first blocking member 31 and the second blocking member 32, and the end of the second blocking member 32 that acts on the support ring 0 is sharp.

[0030] In this embodiment, the feed rack 2 is provided with a plurality of pipes 21 arranged in a ring around its exterior, with gaps between each pipe 21 and fixed in place. Preferably, each pipe 21 includes an inner pipe 211 through which straight longitudinal ribs 9 can pass and an outer pipe 212 disposed on the outer surface of the inner pipe 211, wherein the inner pipe 211 and the outer pipe 212 are insulated from each other. The inner pipe 211 and the outer pipe 212 are made of metal, preferably stainless steel. More preferably, an insulating layer 213 is provided between the inner pipe 211 and the outer pipe 212 to insulate them from each other. The insulating layer 213 is made of insulating material. In this embodiment, to achieve continuous automated supply of support rings 0, multiple support rings 0 need to be fitted on the feeding rack 2. The support rings 0 are densely stacked horizontally, while the support rings 0 on the filter bag frame are spaced apart. Each support ring 0 needs to be welded in sequence. The support ring 0 at the welding position is connected to the longitudinal rib 9, and the longitudinal rib 9 is adjacent to the densely stacked support rings 0. According to the existing design, the densely stacked support rings 0 are close to the longitudinal rib, and the longitudinal rib 9 will be connected to the densely stacked support rings 0. After the pipe fitting 21 is improved in this application, even when the support rings 0 and the longitudinal rib 9 are in contact with the pipe fitting 21, they are still in an insulated state and will not be incorrectly welded due to the connection.

[0031] In this embodiment, the pushing device 6 is a spring, one end of which pushes against the outermost support ring 0; or a cylinder, which pushes against the outermost support ring 0; or a hydraulic cylinder, which pushes against the outermost support ring 0; or a motor, which pushes against the outermost support ring 0; or a combination of a cylinder and a spring, where the cylinder is connected to the spring so that the spring pushes against the outermost support ring 0; or a combination of a hydraulic cylinder and a spring, where the hydraulic cylinder is connected to the spring so that the spring pushes against the outermost support ring 0; or a combination of a motor and a spring, where the motor is connected to the spring so that the spring pushes against the outermost support ring 0. In this embodiment, the pushing device 6 pushes the densely stacked support rings 0 towards the welding direction. By combining the spring with a hydraulic cylinder, a cylinder, or a motor, the pushing force can be maintained while also providing flexible buffering. Compared to the method of pushing with a single spring, the pushing force is more balanced and the operational stability is better. When the pushing device 6 includes a hydraulic cylinder, a pneumatic cylinder, and a motor, the pushing device can stop pushing the support ring near the welding position against the first blocking member 31. Preferably, the pushing device can stop pushing the support ring after the support ring near the welding position is against the first blocking member 31 and the slider 5 abuts against the support ring 0.

[0032] In this embodiment, a second driving device 42 is further included for driving the first blocking member 31 to move, the first blocking member 31 being located on the outside of the support ring 0. In this embodiment, a third driving device 43 is also included for driving the second blocking member 32 to move, the second blocking member 32 being located on the outside of the support ring 0. Preferably, in this embodiment, a fourth driving device is further included for driving the slider 5 to move, the slider 5 being located on the inside of the support ring 0. The second driving device 42, the third driving device 43, and the fourth driving device in this embodiment can be a cylinder, a hydraulic cylinder, or a motor. With the slider 5 located on the inside of the support ring 0, and the first blocking member 31 and the second blocking member 32 located on the outside of the support ring 0, the overall structure is more compact and rationally arranged.

[0033] In this embodiment, a base 51 is provided at one end near the electrode 8. The base 51 is coaxially arranged with the feed rack 2 and is located at one end of the feed rack 2. The base 51 can move closer to and away from the feed rack 2 in the axial direction. There are at least two sliders 5, each slider 5 is slidably connected to the base 51, and the movement direction of each slider 5 and the base 51 is perpendicular to the supply movement direction of the support ring 0. A driving member 52 for driving the movement of the sliders 5 is also included. The driving member 52 is linearly movable, and the movement direction of the driving member 52 is perpendicular to the movement direction of the sliders 5. One end of the driving member 52 and / or the inner end of the slider 5 has an inclined surface 53. When one end of the driving member 52 and the inner end of the slider 5 are in contact through the inclined surface 53, the slider 5 moves outward when the driving member 52 moves towards the base. The driving component 52 is connected to the fifth driving device 45, which drives the driving component 52 to move, thereby moving the slider 5. Preferably, the driving component 52 is slidably connected to a guide 54, and the driving component 52 moves linearly along the axis of the guide 54. The guide 54 is fixedly connected to the base 51. A sixth driving device 46 is also included to drive the base 51 towards and away from the electrode 8. In specific implementations, the sixth driving device 46 is fixedly connected to the fifth driving device 45 or the guide 54, driving the guide 54 and the base 51 to move as a whole. The sixth driving device 46 is fixedly connected to the housing 1. The fifth driving device 45 and the sixth driving device 46 can be a motor, a cylinder, or a hydraulic cylinder. When the slider 5 moves towards the support ring 0 to pick up the support ring 0, the base 51 is in a position away from the electrode 8; when the support ring 0 is welded to the longitudinal rib 9, the base 51 is in a position close to the electrode 8.

[0034] As a preferred embodiment, the electrode 8 has a slot 80 into which the slider 5 can enter. When the support ring 0 is welded to the longitudinal rib 9, the slider 5 is positioned within the slot 80. Welding the support ring 0 to the longitudinal rib 9 requires moving the support ring 0 to the electrode 8, necessitating the fusion between the slider 5 and the electrode 8. After the slot 80 is provided on the slider 5, the electrode 8 can enter the slot 80 to deliver the support ring 0 to the electrode 8, allowing subsequent welding to proceed.

[0035] As a preferred embodiment, the pushing device includes a cylinder. The cylinder operates to push the support ring to be welded until it is blocked by the first blocking member 31, at which point the cylinder stops pushing. Alternatively, the cylinder operates to push the support ring to be welded until it is blocked by the first blocking member 31 and the slider 5 abuts against the support ring to be welded, at which point the cylinder stops pushing. Or, the cylinder operates to push the support ring to be welded until it is blocked by the first blocking member 31, the slider 5 abuts against the support ring to be welded, and the second blocking member 32 abuts against the next support ring to be welded, at which point the cylinder stops pushing. In this embodiment, the pushing operation of the cylinder is on demand; that is, when pushing is needed, the support ring 0 is moved forward. If the support ring to be welded is moved away, creating a gap, the next support ring to be welded needs to be moved forward, and the cylinder pushes. When the support ring is delivered to the set position, the pushing operation can stop, thereby saving energy and avoiding unnecessary consumption and wear.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A control method for a filter bag frame welding machine capable of automatically supplying support rings, comprising a housing having a cavity through which the material to be welded can pass; an electrode fixed to the housing is disposed in the cavity, characterized in that: It also includes a supply mechanism for supplying support rings, the supply mechanism including a feeding rack for placing support rings, and a pushing device pushing the support rings towards the welding position; it also includes a release mechanism for controlling the release of the support rings and a picking mechanism for picking up the support rings to be welded; the release mechanism includes a first blocking member for obstructing the movement of the support rings to be welded and a second blocking member for obstructing the movement of the support rings to be welded, the first blocking member and the second blocking member being movable closer to and further away from the support rings respectively; the picking mechanism includes a movable slider, the slider being configured corresponding to the support rings to be welded, the slider abutting against the support rings to be welded to pick up the support rings; The first blocking member is positioned close to the support ring, thus preventing the support ring from moving. The second blocking member is positioned close to the support ring, thus preventing the support ring closest to the welding position from moving. The slider abuts against the support ring closest to the welding position. The first blocking member moves away from the support ring. The slider carries the support ring to the welding position. The longitudinal rib is welded and fixed to the support ring. The slider moves away from the support ring and returns to a position where it can support the support ring. The first blocking member moves closer to the support ring. The second blocking member moves away from the support ring. The pushing device pushes the densely placed support rings forward. The support ring closest to the welding position is blocked by the first blocking member and stops. The second blocking member moves closer to the support ring again and fixes another support ring closest to the welding position. The slider moves closer to the support ring again.

2. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 1, characterized in that: The feed rack is surrounded by a number of pipes, which are arranged in a ring and are fixedly positioned with gaps between them.

3. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 2, characterized in that: The pipe fitting includes an inner pipe through which longitudinal ribs can be inserted and an outer pipe disposed on the outer surface of the inner pipe, wherein the inner pipe and the outer pipe are insulated from each other.

4. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 3, characterized in that: An insulating layer is provided between the inner tube and the outer tube to insulate the inner tube from the outer tube.

5. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 3, characterized in that: The pushing device is a spring, one end of which pushes against the last support ring; It may be a cylinder that pushes against the outermost support ring, or a hydraulic cylinder that pushes against the outermost support ring; or a motor that pushes against the outermost support ring. Or it could be a combination of a cylinder and a spring, wherein the cylinder is connected to the spring so that the spring pushes against the end support ring; Or it could be a combination of a hydraulic cylinder and a spring, wherein the hydraulic cylinder is connected to the spring so that the spring pushes against the last support ring; Alternatively, it could be a combination of a motor and a spring, wherein the motor is connected to the spring so that the spring pushes against the outermost support ring.

6. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 1, characterized in that: It also includes a second drive device for driving the first blocking member to move, the first blocking member being located on the outside of the support ring.

7. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 1, characterized in that: It also includes a third drive device for driving the movement of the second blocking member, which is located on the outside of the support ring.

8. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 1, characterized in that: It also includes a fourth drive mechanism for driving the movement of a slider, which is located inside the support ring.

9. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 8, characterized in that: A base is provided at one end near the electrode. The base is coaxially arranged with the feed rack. The base can move closer to and away from the feed rack in the axial direction. There are at least two sliders, each of which is slidably connected to the base. The movement direction of the slider and the base is perpendicular to the movement direction of the support ring. When the slider moves closer to the support ring and abuts against the support ring, the base is in a position away from the electrode. When the support ring is welded to the longitudinal rib, the base is in a position close to the electrode.

10. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 1, characterized in that: The first blocking member and the second blocking member are slidably connected, and there is a gap between the first blocking member and the second blocking member. The end of the second blocking member that acts on the support ring is sharp.

11. A control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 1 or 9, characterized in that: The electrode has a slot into which the slider can enter, and the slider is in the slot when the support ring is welded to the longitudinal rib.

12. The control method for a filter bag frame welding machine capable of automatically supplying support rings as described in claim 1, characterized in that: The pushing device includes a cylinder. The cylinder operates to push the support ring to be welded until it is blocked by a first blocking member, and then the cylinder stops pushing; or, the cylinder operates to push the support ring to be welded until it is blocked by the first blocking member and the slider abuts the support ring to be welded, and then the cylinder stops pushing; or, the cylinder operates to push the support ring to be welded until it is blocked by the first blocking member, the slider abuts the support ring to be welded, and a second blocking member abuts the support ring to be welded, and then the cylinder stops pushing.

Images