A drum-type cold sand machine

Abstract

This invention discloses a drum-type cold sander, which relates to the field of metallurgical equipment technology. Material enters the interior of the drum shell from the feeding assembly. A motor controls the rotation of driven teeth via a connecting belt. The driven teeth drive the transmission rod to rotate, and the meshing of the driven teeth drives the toothed block to rotate, thereby controlling the rotation of the drum shell. A first spiral plate is installed inside the drum shell, rotating and driving the material from one side of the feeding assembly to the other, thus achieving continuous feeding. Two transmission rods are provided, working with the driven teeth to support the rotation of both sides of the drum shell, maintaining the stability of the equipment. During the movement of the material inside the drum shell, an airflow is delivered into the drum shell via a pneumatic device. Cold air is introduced from the discharge end and flows in the opposite direction to the feeding end, carrying away heat and cooling the high-temperature zinc calcined sand after rotary kiln calcination to the required process temperature, meeting the conditions for subsequent processing and production.

Description

Technical Field

[0001] This invention relates to the field of metallurgical equipment technology, specifically a drum-type cold sander. Background Technology

[0002] The drum-type sand cooler is a rotary cooling device designed for high-temperature sand and roasted ore (such as zinc roasted sand). It relies on the rotation of the drum and reverse air cooling (some of which include water cooling) to cool the material.

[0003] The entire unit is a tilted rotating cylinder equipped with lifting plates inside. High-temperature materials are fed from the upper end and continuously lifted and thrown down as the cylinder rotates. Simultaneously, cold air is introduced from the lower end in the opposite direction, allowing for thorough convection heat exchange with the materials. Some units have a water-cooled jacket for auxiliary cooling. The materials gradually cool during the movement and are eventually discharged from the lower end. It includes transmission, support, sealing, and fan components, and is widely used in metallurgy, building materials, and other industries to continuously cool high-temperature sand / gravel / mineral materials.

[0004] In existing drum-type cold sanders, after prolonged operation, the drum body is prone to displacement, which can lead to material blockage and flow deviation, affecting the service life of the equipment. Furthermore, the existing single-source air cooling system has low efficiency, affecting subsequent material processing. Therefore, a new design was developed to address these issues. Summary of the Invention

[0005] To address the problems mentioned above, the present invention provides the following technical solution: a drum-type cold sander, comprising: The roller shell has a cylindrical shell structure. Toothed blocks are fixedly connected to both ends of the outer side of the roller shell. A feeding assembly is fixedly connected to one side of the outer side of the roller shell. A fixed bracket is fixedly connected to the outside of the feeding assembly. A first spiral plate is fixedly connected to the inner wall of the roller shell. A pneumatic device is fixedly connected to the outer side of the roller shell away from the feeding assembly. The support block has a square block structure. A connecting end is fixedly connected to one side of the top of the support block. A transmission rod is rotatably connected to the opposite side of the connecting end. A driven tooth is fixedly connected to the outside of the transmission rod at a position corresponding to the toothed block. The driven tooth meshes with the toothed block. A connecting belt is sleeved on one end of the transmission rod, and a motor is sleeved on the other side of the connecting belt. The pneumatic device includes: An outer shell, which has a ring-shaped shell structure, has a fan fixedly connected at the center of its interior; A perforated plate is disposed inside the outer shell, and the outer circumference of the perforated plate is fixedly connected to one side of the inner wall of the outer shell.

[0006] The pneumatic device also includes: A telescopic rod is installed outside the outer shell and is fixedly connected to the outside of the outer shell. A spring strip is sleeved on the outside of the telescopic rod. The wind-powered frame is configured as a ring-shaped disc structure, and the inner side of the wind-powered frame is fixedly connected to one end of the telescopic rod.

[0007] A horn tube is fixedly connected to one side of the outer shell, and a grid plate is fixedly connected to the side of the outer shell away from the horn tube.

[0008] An external bracket is fixedly connected to the outside of the horn tube. An auxiliary rod is slidably connected to the inside of the external bracket. A connecting plate is fixedly connected to the outside of the auxiliary rod. The outside of the connecting plate is fixedly connected to the inside of the pneumatic frame. A stabilization mechanism is fixedly connected to one end of the auxiliary rod near the external bracket.

[0009] The stability maintenance mechanism includes a stability maintenance support rod, the outer side of which is slidably connected to the inner side of an external support, and a stability maintenance frame is slidably connected to the other side of the stability maintenance support rod. A spring block is fixedly connected to the outer side of the stability maintenance support rod near the stability maintenance frame.

[0010] A water-cooling device is rotatably connected to the outside of the roller shell. External ring frames are fixedly connected to both ends of the roller shell. An arc-shaped groove is opened on the outside of the support block near the external ring frame. The outer side of the external ring frame is rotatably connected to the arc-shaped groove. A friction block is fixedly connected to the inner wall of the roller shell.

[0011] The water-cooling device includes a cylindrical shell, the inner side of which is rotatably connected to the outer side of the transmission rod, and a water-cooling shell is fixedly connected to the outer side of the cylindrical shell. A water flow cavity is opened inside the water-cooling shell, an inlet valve is fixedly connected to one side of the outer side of the water-cooling shell, and an outlet valve is fixedly connected to the side of the outer side of the water-cooling shell away from the inlet valve.

[0012] The feeding assembly includes a feeding pipe, one end of which is rotatably connected to a conical shell. The outer side of the conical shell away from the feeding pipe is fixedly connected to the outer side of the roller shell. A second spiral plate is fixedly connected to the inner wall of the feeding pipe.

[0013] A stop block is fixedly connected to the inner wall of the conical shell near the feed pipe, and a reverse bow block is fixedly connected to the outer side of the feed pipe near the stop block. A plastic ring is fixedly connected to the side of the stop block near the reverse bow block, and the reverse bow block and the plastic ring are rotatably connected.

[0014] This invention provides a drum-type cold sander. It has the following beneficial effects: 1. This drum-type cold sander features an outer casing that encloses the blower, creating a double-layer shell that increases the rigidity of the equipment and enhances its safety. The perforated plate prevents external impurities from entering, avoiding particle impact on the blower, thus reducing component wear and extending component lifespan. The blower generates airflow, which is then supplied from the discharge end and flows in the opposite direction to the feed end. This airflow interacts with the falling and tumbling material, facilitating heat exchange and removing heat. This process cools the high-temperature zinc calcined sand from the rotary kiln to the required temperature, meeting the conditions for subsequent processing and production.

[0015] 2. In this drum-type cold sander, a spring strip is fitted on the outside of the telescopic rod. When the fan generates airflow, it causes the components to vibrate, which can easily lead to loosening of the joints, accelerated wear of equipment components, increased operating noise, and affect the on-site working environment. By compressing and contracting the spring strip through the telescopic rod, the vibration generated by the fan operation is weakened, the vibration is blocked from being transmitted to the air duct, main unit and surrounding structures, the operating noise is reduced, the connecting parts and the overall structure are protected, and the stability and service life of the equipment are improved.

[0016] Third, in this drum-type cold sander, the grating plate serves to block external impurities and protect the components. The fan generates airflow, which is delivered into the drum shell through the horn tube. This optimizes the airflow by utilizing the gradually expanding structure, smoothly regulates the wind speed, balances the air volume distribution, reduces airflow turbulence and wind pressure loss, and allows cold air to enter the drum more smoothly, thereby improving the heat exchange efficiency between the material and the airflow.

[0017] IV. When the horn tube of this drum-type cold sander is impacted by material, the pressure drives the external support to slide on the auxiliary rod, thereby buffering the stroke. At the same time, the auxiliary rod supports the external support, thereby improving the stability of the components, reinforcing the connection of the components, and preventing the operation of the components from being affected.

[0018] 5. When the components of this drum-type cold sander are impacted, the external support moves the horn tube slightly and slides on the stabilizing support rod to limit the component's offset range, prevent component deformation, prevent affecting the stability of the component connection, provide an appropriate deformation range for the component, and avoid component damage. Secondly, when the spring strip and telescopic rod rebound against the horn tube support, they adapt with the spring block to play a two-way buffer support role, weaken the fan's own resonance, reduce noise, and ensure the air passage is sealed and the airflow is stable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the drum-type cold sander of the present invention; Figure 2 This is a schematic diagram of the toothed block structure of the present invention; Figure 3 This is a schematic diagram of the water-cooled shell structure of the present invention; Figure 4 This is a schematic diagram of the conical shell structure of the present invention; Figure 5 This is a schematic diagram of the plastic ring structure of the present invention; Figure 6 This is a schematic diagram of the grating structure of the present invention; Figure 7 This is a schematic diagram of the horn tube structure of the present invention; Figure 8 This is a schematic diagram of the spring block structure of the present invention.

[0020] In the diagram: 1. Drum shell; 2. Toothed block; 3. Connecting end; 4. Transmission rod; 5. Connecting belt; 6. Water cooling device; 7. Feeding assembly; 8. Pneumatic device; 9. Fixed bracket; 10. Driven tooth; 11. Support block; 12. Motor; 13. Arc-shaped groove; 14. External ring frame; 15. First spiral plate; 16. Friction block; 61. Cylindrical shell; 62. Water-cooled shell; 63. Water flow chamber; 64. Inlet valve; 65. Outlet valve; 71. Conical shell; 72. 701. Feed pipe; 702. Second spiral plate; 703. Block; 704. Anti-bow block; 705. Plastic ring; 806. Outer shell; 807. Fan; 808. Grating plate; 809. Mesh plate; 8000. Horn tube; 8001. Connecting plate; 801. Auxiliary rod; 802. Stabilizing mechanism; 803. Telescopic rod; 804. Spring strip; 805. Pneumatic frame; 806. External support; 807. Stabilizing frame; 8088. Stabilizing support rod; 8089. Spring block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] First embodiment, such as Figures 1 to 3 As shown, the present invention provides a technical solution: a drum-type cold sander, comprising: The roller housing 1 has a cylindrical shell structure. Toothed blocks 2 are fixedly connected to both ends of the outer side of the roller housing 1. A feeding assembly 7 is fixedly connected to one side of the outer side of the roller housing 1. A fixed bracket 9 is fixedly connected to the outside of the feeding assembly 7. A first spiral plate 15 is fixedly connected to the inner wall of the roller housing 1. A pneumatic device 8 is fixedly connected to the outer side of the roller housing 1 away from the feeding assembly 7. Support block 11 has a square block structure. A connecting end 3 is fixedly connected to one side of the top of support block 11. A transmission rod 4 is rotatably connected to the opposite side of the connecting end 3. A driven tooth 10 is fixedly connected to the outside of the transmission rod 4 at a position corresponding to the toothed block 2. The driven tooth 10 meshes with the toothed block 2. A connecting belt 5 is sleeved on one end of the transmission rod 4, and a motor 12 is sleeved on the other side of the connecting belt 5. Material enters the interior of the drum shell 1 from the feeding assembly 7. The motor 12 controls the driven tooth 10 to rotate via the connecting belt 5. The driven tooth 10 drives the transmission rod 4 to rotate, and the meshing connection of the driven tooth 10 drives the toothed block 2 to rotate, thereby controlling the rotation of the drum shell 1, causing the material to tumble and mix evenly, and reducing... To ensure more uniform temperature distribution and prevent localized heat accumulation, a first spiral plate 15 is installed inside the drum shell 1 to rotate. The first spiral plate 15 drives the material to move from one side of the feeding assembly 7 to the other side, thereby achieving continuous feeding and ensuring continuous operation of the equipment. Two transmission rods 4 are provided, which work with the driven teeth 10 to support the rotation of both sides of the drum shell 1, thereby maintaining the stability of the equipment. During the movement of the material inside the drum shell 1, airflow is delivered into the drum shell 1 through the pneumatic device 8. Cold air is sent from the discharge end and flows in the opposite direction to the feeding end, fully convecting and exchanging heat with the falling and tumbling material, carrying away the heat, and cooling the high-temperature zinc calcined sand after rotary kiln calcination to the temperature required by the process, meeting the conditions for subsequent processing and production.

[0023] A water-cooling device 6 is rotatably connected to the outside of the drum shell 1. External ring frames 14 are fixedly connected to both ends of the drum shell 1. An arc-shaped groove 13 is opened on the outside of the support block 11 near the external ring frame 14. The outer side of the external ring frame 14 is rotatably connected to the arc-shaped groove 13. Friction blocks 16 are fixedly connected to the inner wall of the drum shell 1. The external ring frame 14 is located on the outside of the drum shell 1. When the drum shell 1 rotates, it drives the external ring frame 14 to rotate inside the arc-shaped groove 13, thereby further increasing the contact area of ​​the components, improving the stability of the drum rotation process, maintaining continuous drum rotation, and preventing the drum from derailing. The friction blocks 16 are located inside the drum shell 1, thereby increasing the friction and gripping force on the material, repeatedly lifting and scattering the material inside the drum, breaking up the material layer, increasing the contact area between the material and the cold air and the drum wall, and improving cooling efficiency.

[0024] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 3 to 5As shown, the water-cooling device 6 includes a cylindrical shell 61, the inner side of which is rotatably connected to the outer side of the transmission rod 4. A water-cooling shell 62 is fixedly connected to the outer side of the cylindrical shell 61. A water flow chamber 63 is opened inside the water-cooling shell 62. An inlet valve 64 is fixedly connected to one side of the outer side of the water-cooling shell 62, and an outlet valve 65 is fixedly connected to the side of the outer side of the water-cooling shell 62 away from the inlet valve 64. The cylindrical shell 61 supports the water-cooling shell 62 from both sides to maintain the stability of the components. At the same time, it protects the cylinder, thereby reinforcing the outer thickness of the cylinder, improving the rigidity of the cylinder, and reducing the impact of foreign objects. Cooling liquid enters the interior of the water-cooling shell 62 through the inlet valve 64, fills the interior of the water flow chamber 63, and then is discharged outward through the outlet valve 65. The circulating water in the water flow chamber 63 carries away the heat conducted by the cylinder, assisting air cooling to further reduce the material temperature, improve the overall cooling capacity, and stabilize the cylinder wall temperature, reducing thermal damage to the cylinder, seals, and surrounding components caused by high temperatures.

[0025] The feeding assembly 7 includes a feeding pipe 72, with a conical shell 71 rotatably connected to one end of the feeding pipe 72. The outer side of the conical shell 71 away from the feeding pipe 72 is fixedly connected to the outer side of the drum shell 1. A second spiral plate 73 is fixedly connected to the inner wall of the feeding pipe 72. The second spiral plate 73 is provided on the inner side of the feeding pipe 72. When the material enters from the top of the feeding pipe 72, the material comes into contact with the second spiral plate 73, thereby extending the material passage path, slowing down the feeding speed, breaking up the accumulated material, dissipating some heat in advance, and straightening the material flow so that the material can exchange heat more fully after entering the drum.

[0026] A stop block 74 is fixedly connected to the inner wall of the conical shell 71 near the feed pipe 72. A reverse bow block 75 is fixedly connected to the outer side of the feed pipe 72 near the stop block 74. A plastic ring 76 is fixedly connected to the side of the stop block 74 near the reverse bow block 75. The reverse bow block 75 and the plastic ring 76 are rotatably connected. The conical shell 71 is fixed to one end of the roller shell 1. When the roller shell 1 rotates, the roller shell 1 drives the stop block 74 to rotate on the reverse bow block 75, thereby further strengthening the connection effect of the components. By the reverse engagement of the stop block 74 and the reverse bow block 75, the sealing between the components is strengthened, preventing leakage during component rotation, improving the sealing performance of the components, and extending the service life of the components. Secondly, the plastic ring 76 is set between the reverse bow block 75 and the stop block 74 to increase the wear resistance between the components, reduce component wear, further improve the sealing performance between the components, and reduce component friction noise.

[0027] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 6 to 8 As shown, the pneumatic device 8 includes: The outer shell 801 has an annular shell structure, and a fan 802 is fixedly connected to the center of the outer shell 801. A perforated plate 804 is installed inside the outer shell 801, and its outer circumference is fixedly connected to one side of the inner wall of the outer shell 801. The outer shell 801 encloses the blower 802, thus acting as a double-layer shell, increasing the rigidity of the equipment and improving its safety. The perforated plate 804 prevents external impurities from entering, avoiding particle impact on the blower 802, thereby reducing component wear and extending its service life. Secondly, the blower 802 generates airflow, which sends cold air from the discharge end and flows in the opposite direction to the feed end, fully convecting and exchanging heat with the falling and tumbling material, carrying away heat, and cooling the high-temperature zinc calcined sand after rotary kiln calcination to the required process temperature to meet the conditions for subsequent processing and production.

[0028] The pneumatic device 8 also includes: Telescopic rod 809 is installed outside the outer shell 801 and is fixedly connected to the outside of the outer shell 801. A spring strip 810 is sleeved on the outside of the telescopic rod 809. The pneumatic frame 811 is configured as a ring-shaped disc structure, with its inner side fixedly connected to one end of the telescopic rod 809. A spring strip 810 is fitted onto the outer side of the telescopic rod 809. When the fan 802 generates wind, it causes vibrations in the components, which can easily lead to loosening of interfaces, accelerated wear of equipment components, increased operating noise, and negatively impact the on-site working environment. By compressing and contracting the spring strip 810 through the telescopic rod 809, the vibration generated by the fan 802 is weakened, preventing the transmission of vibration to the duct, main unit, and surrounding structures. Simultaneously, it reduces operating noise, protects connecting components and the overall structure, and improves the stability and service life of the equipment.

[0029] A horn tube 805 is fixedly connected to one side of the outer shell 801, and a grid plate 803 is fixedly connected to the side of the outer shell 801 away from the horn tube 805. The grid plate 803 serves to block external impurities and protect the components. The fan 802 generates airflow, which is delivered into the drum shell 1 through the horn tube 805. This optimizes the airflow by utilizing the gradually expanding structure, smoothly regulates the wind speed, balances the air volume distribution, reduces airflow turbulence and wind pressure loss, and allows cold air to enter the drum more smoothly, thereby improving the heat exchange efficiency between the material and the airflow.

[0030] An external bracket 812 is fixedly connected to the outside of the horn tube 805. An auxiliary rod 807 is slidably connected to the inside of the external bracket 812. A connecting plate 806 is fixedly connected to the outside of the auxiliary rod 807. The outside of the connecting plate 806 is fixedly connected to the inside of the pneumatic frame 811. A stabilizing mechanism 808 is fixedly connected to the end of the auxiliary rod 807 near the external bracket 812. When the horn tube 805 is impacted by material, the pressure causes the external bracket 812 to slide on the auxiliary rod 807, thereby buffering the stroke. At the same time, the auxiliary rod 807 supports the external bracket 812, thereby improving the stability of the component, reinforcing the connection of the component, and preventing it from affecting the operation of the component.

[0031] The stabilization mechanism 808 includes a stabilization support rod 8082, which is slidably connected to the inner side of an external support 812 on its outer side. A stabilization frame 8081 is slidably connected to the other side of the stabilization support rod 8082. A spring block 8083 is fixedly connected to the outer side of the stabilization support rod 8082 near the stabilization frame 8081. When the component is impacted, the external support 812 causes the horn tube 805 to move slightly. The external support 812 slides on the stabilization support rod 8082, thereby limiting the component's offset range, preventing component deformation, preventing the stability of the component connection, providing an appropriate deformation range for the component, and preventing component damage. Secondly, when the spring strip 810 and the telescopic rod 809 rebound and support the horn tube 805, they adapt to the spring block 8083, thereby playing a two-way buffer support role, weakening the resonance of the fan 802 itself, reducing noise, and ensuring the integrity of the air passage seal and the stability of the airflow.

[0032] In use: The material enters from the top of the feeding component 7. The feeding component 7 extends the material passage path, slows down the feeding speed, breaks up the accumulated material, dissipates some heat in advance, and straightens the material flow, so that the material can exchange heat more fully after entering the cylinder. One end of the feeding assembly 7 is fixedly connected to one end of the drum shell 1, and the other end of the drum shell 1 is connected to the pneumatic device 8. The pneumatic device 8 realizes the counter-current convection between the cold air and the tumbling high-temperature material, directly removing the heat from the material and achieving the main cooling. At the same time, it guides the hot air inside the drum, maintains the airflow circulation inside the drum, and ensures continuous cooling operation. Secondly, through the horn tube 805 inside the pneumatic device 8, the airflow state is optimized by using the gradually expanding structure, the wind speed is smoothly adjusted, the air volume distribution is balanced, the airflow turbulence and wind pressure loss are reduced, and the cold air enters the drum more smoothly, improving the heat exchange efficiency between the material and the airflow. The feeding assembly 7 is fitted with the anti-bow block 75 in the opposite direction through the blocking block 74, thereby strengthening the sealing between the components, preventing leakage during component rotation, improving the sealing performance of the components, and extending the service life of the components. Secondly, a plastic ring 76 is set between the anti-bow block 75 and the blocking block 74 to increase the wear resistance between the components, reduce component wear, further improve the sealing performance between the components, and reduce component friction noise.

[0033] Toothed blocks 2 are provided on both sides of the drum shell 1, and transmission rods 4 are provided on both sides of the drum shell 1. Driven teeth 10 are provided on the outer side of the transmission rods 4. The driven teeth 10 on both sides mesh with the toothed blocks 2 to support the drum shell 1 and maintain its stability. The motor 12 drives the driven teeth 10 on the transmission rods 4 to rotate through the connecting belt 5, thereby driving the drum shell 1 to rotate. A first spiral plate 15 is provided on the inner wall of the drum shell 1. The material inside the drum is stirred by the first spiral plate 15, thereby achieving the function of automatically conveying the material.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

Claims

1. A drum-type cold sander, characterized in that, include: The roller shell (1) has a cylindrical shell structure. Toothed blocks (2) are fixedly connected to both ends of the outer side of the roller shell (1). A feeding assembly (7) is fixedly connected to one side of the outer side of the roller shell (1). A fixed bracket (9) is fixedly connected to the outer side of the feeding assembly (7). A first spiral plate (15) is fixedly connected to the inner wall of the roller shell (1). A pneumatic device (8) is fixedly connected to the outer side of the roller shell (1) away from the feeding assembly (7). Support block (11), which has a square block structure, has a connecting end (3) fixedly connected to one side of the top of the support block (11), and a transmission rod (4) rotatably connected to the opposite side of the connecting end (3). A driven tooth (10) is fixedly connected to the outside of the transmission rod (4) at a position corresponding to the toothed block (2). The driven tooth (10) meshes with the toothed block (2). A connecting belt (5) is sleeved on one end of the transmission rod (4), and a motor (12) is sleeved on the other side of the connecting belt (5). The pneumatic device (8) includes: An outer shell (801) has an annular shell structure, and a fan (802) is fixedly connected to the center of the outer shell (801). A perforated plate (804) is disposed inside the outer shell (801), and the outer circumference of the perforated plate (804) is fixedly connected to one side of the inner wall of the outer shell (801).

2. The drum-type cold sander according to claim 1, characterized in that: The pneumatic device (8) also includes: Telescopic rod (809) is provided outside the outer shell (801). The telescopic rod (809) is fixedly connected to the outside of the outer shell (801). A spring strip (810) is sleeved on the outside of the telescopic rod (809). The wind-driven frame (811) is configured as a ring-shaped disc structure, and the inner side of the wind-driven frame (811) is fixedly connected to one end of the telescopic rod (809).

3. A drum-type cold sander according to claim 2, characterized in that: A horn tube (805) is fixedly connected to one side of the outer shell (801), and a grid plate (803) is fixedly connected to the side of the outer shell (801) away from the horn tube (805).

4. A drum-type cold sander according to claim 3, characterized in that: An external bracket (812) is fixedly connected to the outside of the horn tube (805). An auxiliary rod (807) is slidably connected to the inside of the external bracket (812). A connecting plate (806) is fixedly connected to the outside of the auxiliary rod (807). The outside of the connecting plate (806) is fixedly connected to the inside of the wind-driven frame (811). A stabilization mechanism (808) is fixedly connected to one end of the auxiliary rod (807) near the external bracket (812).

5. A drum-type cold sander according to claim 4, characterized in that: The stabilization mechanism (808) includes a stabilization support rod (8082), the outer side of which is slidably connected to the inner side of an external support (812), and a stabilization frame (8081) is slidably connected to the other side of the stabilization support rod (8082). A spring block (8083) is fixedly connected to the outer side of the stabilization support rod (8082) near the stabilization frame (8081).

6. A drum-type cold sander according to claim 1, characterized in that: The roller shell (1) is rotatably connected to a water cooling device (6), and the roller shell (1) is fixedly connected to two ends of an external ring frame (14). The support block (11) has an arc-shaped groove (13) on the side near the external ring frame (14). The outer side of the external ring frame (14) is rotatably connected to the arc-shaped groove (13). The inner wall of the roller shell (1) is fixedly connected to a friction block (16).

7. A drum-type cold sander according to claim 6, characterized in that: The water cooling device (6) includes a cylindrical shell (61), the inner side of which is rotatably connected to the outer side of the transmission rod (4), and a water cooling shell (62) is fixedly connected to the outer side of the cylindrical shell (61). A water flow cavity (63) is opened inside the water cooling shell (62), an inlet valve (64) is fixedly connected to one side of the outer side of the water cooling shell (62), and an outlet valve (65) is fixedly connected to the side of the outer side of the water cooling shell (62) away from the inlet valve (64).

8. A drum-type cold sander according to claim 1, characterized in that: The feeding assembly (7) includes a feeding pipe (72), a conical shell (71) is rotatably connected to one end of the feeding pipe (72), the outer side of the conical shell (71) away from the feeding pipe (72) is fixedly connected to the outer side of the roller shell (1), and a second spiral plate (73) is fixedly connected to the inner wall of the feeding pipe (72).

9. A drum-type cold sander according to claim 8, characterized in that: A stop block (74) is fixedly connected to the inner wall of the conical shell (71) near the feed pipe (72). A reverse bow block (75) is fixedly connected to the outer side of the feed pipe (72) near the stop block (74). A plastic ring (76) is fixedly connected to the side of the stop block (74) near the reverse bow block (75). The reverse bow block (75) and the plastic ring (76) are rotatably connected.

Images