A double-station disc round wire shot blasting machine with external rotary door

Abstract

The application discloses an external rotary door type double-station disc round wire shot blasting machine and mainly relates to the field of shot blasting machines. The shot blasting machine comprises a shot blasting machine body, a feeding port is arranged on one side of the shot blasting machine body, a door plate for controlling the opening and closing of the feeding port is arranged at the feeding port, core shafts are arranged on the two sides of the door plate, a plurality of shot blasting machines are arranged on the side wall of the shot blasting machine body, a fixed track and a rotating disc are arranged on the ground outside the shot blasting machine body, a butt joint track is arranged on the rotating disc in a position opposite to the fixed track, the bottom of the door plate is slidably connected to the fixed track and the butt joint track after alignment, and a locking rod matched with the door plate is arranged at the feeding port. The shot blasting machine has the advantages that the technical problems of low shot blasting efficiency and high energy consumption of the existing double-station shot blasting machine can be solved, the double-station rotary switching of the door plate is arranged outside the shot blasting machine body, the thickness of the shot blasting machine body is greatly reduced, the distance between the wire and the shot blasting machine is closer, the shot blasting efficiency and the utilization rate of the shot are improved, and the energy consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of shot blasting equipment technology, specifically an external rotary door type double-station circular wire shot blasting machine. Background Technology

[0002] In the production of coiled wire, shot blasting is required to treat the wire surface. High-speed shot blasting from a shot blaster impacts the wire surface, removing the oxide scale to achieve surface treatments such as descaling and strengthening. To improve the continuity and efficiency of shot blasting, a dual-station shot blasting machine has been developed. This machine features mandrels on both sides of its gate. When the gate closes the feed inlet of the machine body, the wire on one mandrel undergoes shot blasting inside the machine, while the wire on the other mandrel is outside, allowing for simultaneous loading and unloading. After one side of the wire is processed, the inner and outer stations are interchanged by flipping the gate, enabling continuous operation.

[0003] Currently, the door panel of a dual-station shot blasting machine is generally directly rotatably connected to the machine body. When switching between the two stations, the door panel rotates around its own axis on the machine body, moving the outer station to the inner station. This internally rotating door panel structure has the following prominent problems: Sufficient space needs to be reserved inside the shot blasting machine body for the door panel to rotate, resulting in a larger overall thickness of the machine body. This increases the material cost and floor space required for the machine body; furthermore, due to the large thickness of the machine body, the distance between the wire suspended on the door panel's spindle and the shot blaster on the inner wall of the machine body is relatively large. The shot thrown by the shot blaster needs to travel a long distance before contacting the wire, and the energy of the shot gradually decreases during flight, leading to a reduction in impact force and poor descaling effect. To achieve the desired surface treatment effect, a long shot blasting time is often required to process the wire, reducing the efficiency of the shot blasting process. Meanwhile, the dispersed trajectory of the projectiles over long distances results in a large number of projectiles failing to make effective contact with the wire, reducing the utilization rate of the projectiles, wasting energy in shot blasting, and increasing the energy consumption and production costs of the equipment.

[0004] Therefore, there is an urgent need for a shot blasting machine structure that can reduce the thickness of the main body of the shot blasting machine, shorten the shot flight distance, improve shot blasting efficiency and shot utilization, and achieve stable dual-station switching. Summary of the Invention

[0005] The purpose of this invention is to provide an external rotating door type double-station coiled wire shot blasting machine, which can solve the technical problems of low shot blasting efficiency and high energy consumption of existing double-station shot blasting machines. The dual-station rotation switching of the door panel is set outside the shot blasting machine body, which greatly reduces the thickness of the shot blasting machine body, brings the wire closer to the shot blaster, improves shot blasting efficiency and shot utilization, and reduces energy consumption.

[0006] To achieve the above objectives, the present invention employs the following technical solution: An external rotating door type double-station round wire shot blasting machine includes a shot blasting machine body. A feed inlet is located on one side of the shot blasting machine body, and a door panel is provided at the feed inlet to control its opening and closing. Mandrels are located on both sides of the door panel. Multiple shot blasters are located on the side wall of the shot blasting machine body. A fixed track and a turntable are provided on the ground outside the shot blasting machine body. A docking track is located on the turntable opposite to the fixed track. After the turntable rotates, the docking track aligns with the fixed track. The bottom of the door panel is slidably connected to the aligned fixed track and docking track. A locking rod is provided at the feed inlet for use with the door panel. A sliding support groove and a rotating support groove are provided on the ground outside the shot blasting machine body. The sliding support grooves are symmetrically located on the outer sides of the fixed track on both sides. The rotating support groove is located on the outside of the turntable. The sliding support groove is provided with a linear support and a first arc-shaped support, as well as a first lifting column that drives the two to slide vertically. The rotating support groove is provided with a second arc-shaped support and a second lifting column that drives it to slide vertically. The circle formed by the first arc-shaped support and the second arc-shaped support is concentrically arranged with the turntable. The corresponding positions on the inner sides of the linear support, the first arc-shaped support, and the second arc-shaped support are all provided with track grooves. Both ends of the door panel are provided with grooves. A support rod is slidably connected to the groove along the horizontal direction. A compression spring is provided between the end of the support rod and the end of the groove. A roller is rotatably connected to the end of the support rod. The roller is rotatably connected to the track groove. Locking grooves that are movably inserted into the support rod are provided on both sides of the feed port.

[0007] Furthermore, the locking groove has an L-shaped cross-section, the longitudinal portion of the L-shape is connected to the track groove, and the support rod is inserted into the transverse portion of the L-shape.

[0008] Furthermore, counterweights are symmetrically arranged on both sides of the door panel near the bottom.

[0009] Furthermore, the top of the counterweight is provided with a downwardly inclined guide plate.

[0010] Furthermore, the top of the shot blasting machine body is provided with a guide sleeve, and the top of the door panel body is rotatably connected with a guide rod, which is slidably connected inside the guide sleeve.

[0011] Furthermore, a telescopic column is rotatably connected to the top of the shot blasting machine body, the middle part of the locking rod is rotatably connected to the front side of the shot blasting machine body, and the movable end of the telescopic column is rotatably connected to one end of the locking rod.

[0012] Furthermore, the locking groove is provided with a telescopic push rod that works in conjunction with the support rod, and the telescopic push rod is in contact with the roller.

[0013] Furthermore, the bottom of the linear bracket, the first arc-shaped bracket, and the second arc-shaped bracket are each provided with multiple sliders, which are slidably connected in the sliding bracket groove and the rotating bracket groove, respectively.

[0014] Furthermore, the groove is provided with a communicating slide, the end of the support rod is provided with a slide rod, the slide rod is slidably connected in the slide groove, and the compression spring is sleeved on the outside of the slide rod.

[0015] Furthermore, symmetrical baffles are provided on both sides of the top of the feed inlet to cooperate with the door panel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. External Rotation Switching Reduces Equipment Thickness and Improves Shot Blasting Efficiency and Effect: This invention sets the dual-station rotation switching of the door panel outside the shot blasting machine body. During dual-station switching, the door panel slides along fixed and docking tracks to the external turntable for rotation, without occupying the internal space of the shot blasting machine body. The shot blasting machine body does not need to reserve internal space for door panel flipping, and its thickness can be significantly reduced. The distance between the wire suspended on the door panel spindle and the shot blaster is thus greatly shortened. The shot thrown by the shot blaster can impact the wire at close range, making full use of the initial kinetic energy of the shot when it is thrown, resulting in stronger impact force, better descaling effect, and faster shot blasting speed, greatly improving the efficiency and effect of shot blasting. At the same time, the shortened shot flight distance makes the trajectory more concentrated, reducing the number of ineffective shots, improving shot utilization, and reducing energy consumption and production costs.

[0017] 2. Stable Support for Safe Switching of Large Door Panels: When the door panel slides along the fixed track, the straight supports on both sides rise to provide track groove support for the support rods on both sides of the door panel; when the door panel rotates on the turntable, the first and second arc-shaped supports form a circular track groove to provide circumferential support for the door panel. Throughout the sliding and rotating process, the door panel is supported by support rods and rollers on both sides rolling within the track grooves of the supports, effectively preventing the large and heavy door panels from tipping over during movement, ensuring the safety and reliability of dual-station switching. After use, the supports can be lowered and hidden below the ground, without affecting normal loading and unloading operations. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a front view of the present invention.

[0020] Figure 3 This is an appendix to the present invention. Figure 2 A cross-sectional view along the AA direction.

[0021] Figure 4 This is an appendix to the present invention. Figure 3 A magnified view of part B in the middle.

[0022] Figure 5 This is an appendix to the present invention. Figure 2 A cross-sectional view along the CC direction.

[0023] Figure 6 This is a three-dimensional structural diagram of the linear support, the first arc-shaped support, and the second arc-shaped support of the present invention when they are raised.

[0024] Figure 7 This is a front view of the linear support, the first arc-shaped support, and the second arc-shaped support of the present invention when they are raised.

[0025] Figure 8 This is an appendix to the present invention. Figure 7 A cross-sectional view along the DD direction.

[0026] Figure 9 This is an appendix to the present invention. Figure 8 A cross-sectional view along the EE direction.

[0027] Figure 10 This is an appendix to the present invention. Figure 9 A magnified view of part F in the middle.

[0028] Figure 11 This is an appendix to the present invention. Figure 8 A cross-sectional view along the GG direction.

[0029] Figure 12 This is a schematic diagram of the workstation switching process of the present invention.

[0030] Figure 13 This is a schematic diagram of the structure during shot blasting operation of the present invention.

[0031] The labels shown in the attached diagram: 1. Shot blasting machine body; 2. Feed inlet; 3. Door panel; 4. Mandrel; 5. Shot blaster; 6. Fixed track; 7. Turntable; 8. Connecting track; 9. Locking rod; 10. Sliding bracket groove; 11. Rotating bracket groove; 12. Linear bracket; 13. First arc-shaped bracket; 14. First lifting column; 15. Second arc-shaped bracket; 16. Second lifting column; 17. Track groove; 18. Groove; 19. Support rod; 20. Compression spring; 21. Roller; 22. Locking groove; 23. Counterweight; 24. Guide plate; 25. Guide sleeve; 26. Guide rod; 27. Telescopic column; 28. Telescopic push rod; 29. ​​Slider; 30. Slide groove; 31. Slide rod. Detailed Implementation

[0032] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0033] Reference Figure 1 and Figure 2 This invention describes an externally mounted rotating door type double-station shot blasting machine for coiled wire. The main structure includes a shot blasting machine body 1. The shot blasting machine body 1 is a closed box structure welded from steel plates, with a shot blasting chamber inside. A feed inlet 2 is provided on one side of the shot blasting machine body 1. A door plate 3 is provided at the feed inlet 2 to control its opening and closing. The door plate 3 is a large rectangular steel plate structure, with multiple spindles 4 rotatably connected to its inner and outer sides via bearings. The spindles 4 are used to suspend the coiled wire to be processed. Multiple shot blasters 5 are installed on the inner wall of the shot blasting machine body 1. The shot blasters 5 are centrifugal shot blasting devices, driven by a motor to rotate at high speed, propelling shot at high speed into the internal space of the shot blasting machine body 1. When the door plate 3 closes the feed inlet 2, the coiled wire is suspended on the spindles 4 inside the door plate 3, located inside the shot blasting machine body 1. Multiple shot blasters 5 propel high-speed shot at the suspended wire. Upon contact with the wire surface, the shot impacts and peels off the oxide scale, achieving shot blasting treatment of the coiled wire. After the wire inside the door panel 3 has been shot blasted, the operator moves the door panel 3, moving the outer mandrel 4 along with the suspended wire to be treated into the shot blasting machine body 1, thus achieving shot blasting treatment of the wire suspended on the outer mandrel 4. While shot blasting is being performed on the wire at one station inside the shot blasting machine body 1, the operator can simultaneously unload the already treated wire at the other station from outside the machine body 1 and hang new wire to be treated. This dual-station structure enables continuous wire processing; while one side is being shot blasted, the other side is simultaneously loading and unloading, ensuring processing continuity and greatly improving the overall efficiency of shot blasting.

[0034] Reference Figure 5A fixed track 6 and a turntable 7 are laid and installed on the ground outside the shot blasting machine body 1. The fixed track 6 consists of two parallel straight steel rails extending outward from below the feed inlet 2. The turntable 7 is a circular turntable structure located at the end of the fixed track 6, driven by a motor through a gear or pin mechanism. A section of docking track 8 is symmetrically provided on the upper surface of the turntable 7, and the specifications of the docking track 8 are the same as those of the fixed track 6. When the turntable 7 rotates to a specific angle, the docking track 8 aligns with the end of the fixed track 6, forming a continuous straight track. The bottom of the door panel 3 is slidably connected to the aligned fixed track 6 and docking track 8 via rollers or sliders, and the movement of the door panel 3 along the track is achieved by the motor driving the rollers to rotate on the track. A locking rod 9 is provided at the feed inlet 2 to cooperate with the door panel 3, and the locking rod 9 is used to lock the door panel 3 in the position where the feed inlet 2 is closed. (Refer to...) Figure 12 and Figure 13 After the shot blasting of the wire inside the door panel 3 is completed, the locking rod 9 is first released from its restriction on the door panel 3. Then, the door panel 3 is driven to slide along the fixed track 6 toward the outside of the shot blasting machine body 1. The bottom of the door panel 3 moves outward along the fixed track 6 until it is completely moved onto the docking track 8 on the turntable 7. At this time, the motor is started to drive the turntable 7 to rotate 180 degrees. The turntable 7 drives the door panel 3 on it to rotate 180 degrees around its own center position, so that the side of the door panel 3 that was originally facing the outside of the shot blasting machine body 1 rotates to face the feed inlet 2. After that, the door panel 3 slides back to the fixed track 6 in the opposite direction from the docking track 8, and slides back to the feed inlet 2 along the fixed track 6. The locking rod 9 is used to fix the door panel 3 at the feed inlet 2 to complete the closure. The dual-station switching of the door panel 3 is completed outside the shot blasting machine body 1, and the flipping action does not occupy the internal space of the shot blasting machine body 1. Therefore, the thickness of the shot blasting machine body 1 can be designed to be thinner, and there is no need to reserve internal space for the door panel flipping. The wire suspended on the spindle 4 of the door panel 3 is closer to the shot blaster 5 on the inner wall of the shot blasting machine body 1. The shot thrown by the shot blaster 5 can impact the wire at a shorter distance, making full use of the initial kinetic energy of the shot, resulting in a stronger impact force, better descaling effect, and faster shot blasting speed. At the same time, the shot flight trajectory is more concentrated, the effective contact rate between the shot and the wire is improved, shot waste is reduced, and energy consumption is lowered.

[0035] Reference Figures 6 to 8 , Figure 11The shot blasting machine body 1 is also provided with a sliding support groove 10 and a rotating support groove 11 on the ground outside. The sliding support groove 10 is symmetrically arranged on the outer side of the fixed rails 6 on both sides, and is a splicing groove of long strip and arc. The rotating support groove 11 is arranged on the outer side of the turntable 7 and is an arc groove. Each sliding support groove 10 is provided with a straight support 12 and a first arc support 13, as well as a first lifting column 14 that drives the straight support 12 and the first arc support 13 to rise and fall vertically. The first lifting column 14 is a hydraulic cylinder, the cylinder body of which is fixed to the bottom of the sliding support groove 10, and the movable end is fixedly connected to the bottom of the straight support 12 and the first arc support 13. The rotating support groove 11 is provided with a second arc support 15 and a second lifting column 16 that drives it to rise and fall vertically. The second lifting column 16 is a hydraulic cylinder, the cylinder body of which is fixed to the bottom of the rotating support groove 11, and the movable end is fixedly connected to the bottom of the second arc support 15. The circle formed by the first arc support 13 and the second arc support 15 is arranged concentrically with the turntable 7. Track grooves 17 are provided at corresponding height positions on the inner sides of the linear bracket 12, the first arc-shaped bracket 13, and the second arc-shaped bracket 15. Grooves 18 are provided on both ends of the door panel 3. A support rod 19 is slidably connected to the groove 18. A compression spring 20 is provided between the inner end of the support rod 19 and the inner end face of the groove 18. The compression spring 20 always applies an outward thrust to the support rod 19. A roller 21 is rotatably connected to the outer end of the support rod 19 via a pin. The roller 21 can roll in the track groove 17. Locking grooves 22 are provided on both sides of the feed inlet 2 to movably engage with the support rod 19. Before the door panel 3 is released from the locking rod 9 and prepared to slide outward, the first lifting column 14 first drives the linear bracket 12 and the first arc-shaped bracket 13 to rise from the sliding bracket groove 10. As the door panel 3 slides outward, the ends of the support rods 19 in the grooves 18 on both sides move outward with the door panel 3, gradually separating from the locking groove 22. After the support rods 19 are freed from the constraint of the locking groove 22, they automatically extend outward under the elastic force of the compression spring 20, and the rollers 21 at the ends of the support rods 19 enter the track grooves 17 on the inner side of the linear bracket 12. As the door panel 3 continues to slide outward, the rollers 21 roll in the track grooves 17 of the linear bracket 12. The linear bracket 12 provides auxiliary support to both sides of the door panel 3 through the support rods 19, improving the stability of the door panel 3, which is large in size and weight, during the sliding movement and preventing the door panel 3 from tipping over. After the door panel 3 slides onto the docking track 8 on the turntable 7, the second lifting column 16 drives the second arc-shaped bracket 15 to rise from the rotating bracket groove 11. The track groove 17 on the inner side of the second arc-shaped bracket 15 and the track groove 17 on the inner side of the first arc-shaped bracket 13 form a complete circular track groove 17. At this moment, turntable 7 begins to rotate, causing door panel 3 to rotate.Rollers 21 at the ends of the support rods 19 on both sides of the door panel 3 roll along the circular track groove 17. The first arc-shaped bracket 13 and the second arc-shaped bracket 15 provide stable circumferential support for the rotation of the door panel 3 through the support rods 19, effectively preventing the door panel 3 from tipping over due to the shift of the center of gravity during rotation. After the door panel 3 has rotated 180 degrees, the second lifting column 16 drives the second arc-shaped bracket 15 to descend and hide in the rotating bracket groove 11, leaving space for the door panel 3 to slide back from the docking track 8 to the fixed track 6, and preventing the second arc-shaped bracket 15 from obstructing the sliding reset of the door panel 3. When the door panel 3 slides back to the feed inlet 2 along the fixed track 6, the ends of the support rods 19 on both sides are realigned with the locking groove 22. Under the elastic force of the compression spring 20, the support rods 19 automatically pop out and insert into the locking groove 22, realizing the automatic insertion and engagement of the support rods 19 and the locking groove 22, and automatically locking and fixing the door panel 3 at the feed inlet 2. With the locking rod 9 locking the door panel 3, the door panel 3 is firmly fixed to the feed inlet 2 and tightly sealed to prevent shot leakage from the feed inlet 2 during shot blasting. Afterwards, the first lifting column 14 drives the linear support 12 and the first arc-shaped support 13 to descend and hide within the sliding support groove 10, restoring the ground outside the shot blasting machine body 1 to a flat surface. This does not affect the operator's loading and unloading of coiled wire on the outer spindle 4 of the door panel 3.

[0036] Preferably, the locking groove 22 has an L-shaped cross-section. The longitudinal portion of the L-shaped locking groove 22 extends along the sliding direction of the door panel 3 and communicates with the track groove 17 after the linear bracket 12 is raised. The transverse portion of the L-shaped locking groove 22 extends in a direction perpendicular to the sliding direction of the door panel 3. When the linear bracket 12 is raised, its inner track groove 17 is aligned and communicates with the longitudinal portion of the locking groove 22, and the roller 21 at the end of the support rod 19 can smoothly enter the longitudinal portion of the locking groove 22 along the track groove 17. When the roller 21 reaches the intersection of the longitudinal and transverse portions, under the elastic force of the compression spring 20, the support rod 19 pops out laterally and inserts into the transverse portion of the L-shaped locking groove 22, and the roller 21 then enters the transverse portion. After the support rod 19 is inserted and engaged with the L-shaped transverse portion, the movement of the support rod 19 in the sliding direction of the door panel 3 is constrained by the transverse portion, thus achieving reliable locking and fixing of the position of the door panel 3. The L-shaped structure makes the locking fit between the support rod 19 and the locking groove 22 smoother and more secure.

[0037] Preferably, counterweights 23 are symmetrically welded and fixed to both sides of the door panel 3 near the bottom. The counterweights 23 are made of cast iron or steel, increasing the weight at the bottom of the door panel 3. The counterweights 23 lower the overall center of gravity of the door panel 3, bringing it closer to the bottom support surface. When the door panel 3 moves along the fixed track 6 and the docking track 8, and rotates with the turntable 7, the lower center of gravity makes the door panel 3 more stable and less prone to tipping over due to an excessively high center of gravity, further improving the safety and stability of the door panel 3 during dual-position rotation switching.

[0038] Preferably, a downwardly inclined guide plate 24 is welded or integrally formed on the top of the counterweight 23. The inclined direction of the guide plate 24 faces the shot recovery port. When the door panel 3 closes the feed port 2 for shot blasting, a large number of shot propelled by the shot blaster 5 fall downwards after impacting the wire. When the falling shot lands on the top of the counterweight 23, it rolls smoothly downwards along the inclined surface of the guide plate 24 and enters the shot recovery circulation system, without accumulating on the top of the counterweight 23. The guide plate 24 ensures the full recycling of shot, making the shot supply circulation of the shot blaster 5 more sufficient and stable.

[0039] Preferably, a guide sleeve 25 is welded and fixed to the top of the shot blasting machine body 1. The guide sleeve 25 is a sleeve structure extending along the sliding direction of the door panel 3. A guide rod 26 is rotatably connected to the top of the door panel 3 body via a bearing. The rod body of the guide rod 26 is slidably connected inside the guide sleeve 25 and can slide along the axial direction of the guide sleeve 25. When the door panel 3 slides along the fixed track 6, the guide rod 26 slides synchronously along the guide sleeve 25, providing sliding guidance and support for the top of the door panel 3. When the door panel 3 rotates on the turntable 7, the top of the door panel 3 rotates around the rotation connection point between the guide rod 26 and the door panel 3, while the guide rod 26 remains inside the guide sleeve 25 and does not rotate with the door panel 3. The cooperation between the guide rod 26 and the guide sleeve 25 ensures that the top of the door panel 3 remains connected and supported to the shot blasting machine body 1 throughout the sliding and rotation process, further improving the stability of the door panel 3 during movement and rotation.

[0040] Preferred, refer to Figure 3 and Figure 4 The top of the shot blasting machine body 1 is rotatably connected to a telescopic column 27 via a hinged seat. The telescopic column 27 is a cylinder or an electric push rod. The locking rod 9 is a long strip rod, the middle of which is rotatably connected to the front side wall of the shot blasting machine body 1 via a pin. The movable end of the telescopic column 27 is rotatably connected to one end of the locking rod 9 via a pin. When it is necessary to lock the door panel 3, the piston rod of the telescopic column 27 extends, pushing the locking rod 9 to rotate around its middle hinge point. The other end of the locking rod 9 rotates from a horizontal position downwards to a vertical position, blocking the outer surface of the door panel 3. The locking rod 9 blocks and limits the position of the door panel 3 at the feed inlet 2 from the outside, preventing the door panel 3 from moving outwards. The locking rod 9, together with the support rod 19 and the locking groove 22, forms a double locking, further improving the firmness and reliability of the door panel 3 in sealing the feed inlet 2.

[0041] Preferably, a telescopic push rod 28 for use with the support rod 19 is installed inside the locking groove 22. The movable end of the telescopic push rod 28 faces the roller 21. When the support rod 19 and the roller 21 enter the locking groove 22 and engage, the telescopic push rod 28 is in a retracted state, providing sufficient space for the engagement of the support rod 19 and the locking groove 22. When it is necessary to disengage the engagement of the support rod 19 and the locking groove 22 and move the door panel 3 outward, the piston rod of the telescopic push rod 28 extends, pushing the roller 21 and the support rod 19 in contact with it to slide towards the inside of the groove 18 against the elastic force of the compression spring 20. While filling the space of the locking groove 22, the telescopic push rod 28 pushes the support rod 19 outward, causing the support rod 19 to disengage from the locking groove 22. After the support rod 19 retracts into the groove 18, the engagement with the locking groove 22 is completely disengaged, and the door panel 3 can then move outward smoothly for dual-position switching. The telescopic push rod 28 enables the automatic separation of the support rod 19 from the locking groove 22, improving the smoothness and convenience of operation.

[0042] Preferably, multiple sliders 29 are welded and fixed to the bottom of the linear bracket 12, the first arc-shaped bracket 13, and the second arc-shaped bracket 15. The sliders 29 at the bottom of the linear bracket 12 and the first arc-shaped bracket 13 are slidably connected in the sliding bracket groove 10, and the sliders 29 at the bottom of the second arc-shaped bracket 15 are slidably connected in the rotating bracket groove 11. When the first lifting column 14 and the second lifting column 16 drive each bracket to rise or fall, the sliders 29 at the bottom of each bracket slide vertically in the corresponding groove. The cooperation between the sliders 29 and the grooves provides precise vertical guidance and lateral support for the rising and falling movement of each bracket, making the structure stable after each bracket is raised and preventing lateral swaying, thereby providing more solid and reliable support for the sliding and rotating of the door panel 3.

[0043] Preferred, refer to Figure 9 and Figure 10 A connecting groove 30 is provided at the inner end of the groove 18. The groove 30 extends along the sliding direction of the support rod 19. A slide rod 31 is welded and fixed to the inner end of the support rod 19. The slide rod 31 is slidably connected within the groove 30. A compression spring 20 is sleeved on the outside of the slide rod 31. The sliding engagement between the slide rod 31 and the groove 30 provides precise guidance for the lateral sliding movement of the support rod 19 within the groove 18, ensuring that the support rod 19 remains straight and stable during sliding, without skewing or jamming, thus improving the robustness of the sliding structure of the support rod 19. At the same time, the slide rod 31 provides internal support and radial constraint for the compression and extension of the compression spring 20, preventing the compression spring 20 from laterally bending and deforming under force, ensuring that the elastic force of the compression spring 20 acting on the support rod 19 is always along the axial direction of the support rod 19, thus improving the accuracy of force transmission.

[0044] Preferably, symmetrical stop blocks for use with the door panel 3 are welded and fixed on both sides of the top of the feed inlet 2. The stop blocks are located inside the feed inlet 2. When the door panel 3 slides inward into the feed inlet 2 along the fixed track 6, the top of the door panel 3 contacts the stop block, which limits the maximum entry depth of the door panel 3. The stop blocks ensure that the door panel 3 stops just as it moves to the position that completely closes the feed inlet 2, preventing the door panel 3 from entering the shot blasting machine body 1 too deeply and causing part of the feed inlet 2 to be exposed, thus ensuring the tightness of the seal between the door panel 3 and the feed inlet 2.

[0045] Example: An externally mounted rotating door type double-station round wire shot blasting machine is disclosed. The main body 1 has a feed inlet 2 on its front side. Both the inner and outer sides of the door panel 3 are rotatably connected to a spindle 4 via bearings. Shot blasters 5 are installed on the inner wall of the main body 1. A fixed track 6 and a turntable 7 are laid on the ground outside the main body 1, with a docking track 8 on the turntable 7. The bottom of the door panel 3 is slidably connected to the fixed track 6 and the docking track 8. A locking rod 9 is installed at the feed inlet 2, with its middle section hinged to the main body 1. Telescopic columns 27 are hinged at both ends to the top of the main body 1 and the locking rod 9, respectively. A sliding support groove 10 and a rotating support groove 11 are provided on the ground. The sliding support groove 10 contains a linear support 12, a first arc-shaped support 13, and a first lifting column 14. The rotating support groove 11 contains a second arc-shaped support 15 and a second lifting column 16. Track grooves 17 are provided on the inner side of each support, and sliders 29 are provided at the bottom. The door panel 3 has grooves 18 at both ends, with support rods 19, compression springs 20, and slide rods 31 installed inside. Rollers 21 are installed on the outer ends of the support rods 19. L-shaped locking grooves 22 are provided on both sides of the feed inlet 2, with telescopic push rods 28 installed inside. Weights 23 are installed on both sides of the bottom of the door panel 3, with guide plates 24 welded to the top of the weights 23. A guide sleeve 25 is provided on the top of the shot blasting machine body 1, and the guide rod 26 on the top of the door panel 3 slides in cooperation with the guide sleeve 25. After the wires on the inner side of the door panel 3 are processed, the telescopic column 27 pulls the locking rod 9 to unlock, and the first lifting column 14 raises the linear support 12 and the first arc-shaped support 13. The telescopic push rod 28 pushes the support rod 19 out of the locking groove 22, and the door panel 3 slides outward along the fixed track 6. The rollers 21 on the support rod 19 roll in the track groove 17 of the linear support 12. After the door panel 3 slides onto the turntable 7, the second lifting column 16 raises the second arc-shaped support 15, the turntable 7 rotates 180 degrees, and the roller 21 rolls within the circular track groove 17. After the flip is completed, the second arc-shaped support 15 descends, and the door panel 3 slides back to the feed inlet 2 along the fixed track 6. The support rod 19 automatically inserts into the locking groove 22 to lock, and the locking rod 9 locks the door panel 3. Each support descends and hides, allowing for the loading and unloading operation of the outer spindle 4.

Claims

1. An externally mounted rotary door type double-station coiled wire shot blasting machine, comprising a shot blasting machine body (1), wherein a feed inlet (2) is provided on one side of the shot blasting machine body (1), a door plate (3) for controlling its opening and closing is provided at the feed inlet (2), a mandrel (4) is provided on both sides of the door plate (3), and a plurality of shot blasters (5) are provided on the side wall of the shot blasting machine body (1), characterized in that: The shot blasting machine body (1) is provided with a fixed track (6) and a turntable (7) on the ground outside. The turntable (7) is provided with a docking track (8) opposite to the fixed track (6). After the turntable (7) rotates, the docking track (8) aligns with the fixed track (6). The bottom of the door panel (3) is slidably connected to the aligned fixed track (6) and docking track (8). The feed inlet (2) is provided with a locking rod (9) for use with the door panel (3). The shot blasting machine body (1) is provided with a sliding support groove (10) and a rotating support groove (11) on the ground outside. The sliding support groove (10) is symmetrically located on the outside of the fixed track (6) on both sides. The rotating support groove (11) is located on the outside of the turntable (7). The sliding support groove (10) is provided with a straight support (12) and a first arc support (13) and a first lifting column that drives the two to slide vertically. 14), the rotating bracket groove (11) is provided with a second arc bracket (15) and a second lifting column (16) that drives it to slide vertically. The circle formed by the first arc bracket (13) and the second arc bracket (15) is concentrically arranged with the turntable (7). The corresponding positions of the inner sides of the straight bracket (12), the first arc bracket (13) and the second arc bracket (15) are provided with track grooves (17). Both ends of the door panel (3) are provided with grooves (18). A support rod (19) is slidably connected in the groove (18) along the horizontal direction. A compression spring (20) is provided between the end of the support rod (19) and the end of the groove (18). A roller (21) is rotatably connected to the end of the support rod (19). The roller (21) is slidably connected in the track groove (17). Locking grooves (22) that are movably inserted into the support rod (19) are provided on both sides of the feed port (2).

2. The external rotary gate type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The locking groove (22) has an L-shaped cross section. The longitudinal part of the L-shape is connected to the track groove (17), and the support rod (19) is inserted into the transverse part of the L-shape.

3. The external rotary gate type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The door panel (3) is provided with counterweights (23) symmetrically on both sides near the bottom.

4. The external rotary door type double-station coiled wire shot blasting machine according to claim 3, characterized in that: The top of the counterweight (23) is provided with a downwardly inclined guide plate (24).

5. The external rotary door type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The top of the shot blasting machine body (1) is provided with a guide sleeve (25), and the top of the door panel (3) body is rotatably connected with a guide rod (26), which is slidably connected inside the guide sleeve (25).

6. The external rotary door type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The top of the shot blasting machine body (1) is rotatably connected to a telescopic column (27), the middle part of the locking rod (9) is rotatably connected to the front side of the shot blasting machine body (1), and the movable end of the telescopic column (27) is rotatably connected to one end of the locking rod (9).

7. The external rotary door type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The locking groove (22) is provided with a telescopic push rod (28) for use with the support rod (19), and the telescopic push rod (28) is in contact with the roller (21).

8. The external rotary gate type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The bottom of the linear bracket (12), the first arc bracket (13), and the second arc bracket (15) are provided with multiple sliders (29), and the multiple sliders (29) are slidably connected in the sliding bracket groove (10) and the rotating bracket groove (11).

9. The external rotary door type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The groove (18) is provided with a communicating slide (30), and the end of the support rod (19) is provided with a slide rod (31). The slide rod (31) is slidably connected in the slide (30), and the compression spring (20) is sleeved on the outside of the slide rod (31).

10. The external rotary gate type double-station coiled wire shot blasting machine according to claim 1, characterized in that: The feed inlet (2) has symmetrically arranged baffles on both sides of its top for use with the door panel (3).

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