Vapor-phase antirust plastic film production equipment

Abstract

The invention relates to gas-phase rust-proof plastic film production equipment in the field of film production, which comprises a grinding tank provided with a feed hopper and a discharge pipe, a grinding core and a grinding hopper are mounted in the grinding tank, the grinding core and the grinding hopper are in clearance fit, and convex grinding bulges are formed on the side walls close to each other; an annular gap with a large upper part and a small lower part is formed between the grinding core and the grinding hopper, the grinding bulges on the grinding core and the grinding hopper are sequentially reduced from top to bottom, and the gaps of the grinding bulges on the grinding core and the grinding hopper are also sequentially reduced from top to bottom; a first cooling cavity is formed in the grinding core, a second cooling cavity is formed in the grinding hopper, by the adoption of the structure, the purpose of completing grinding at a time is achieved, the grinding mode of gradually changing the grinding particle size enables raw materials obtained through grinding to be more uniform, and follow-up machining and using are facilitated; in addition, by arranging a double-cooling mode, the anti-volatilization effect is improved, the material loss during grinding is further reduced, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to a grinding device, in particular to a gas phase anti-rust plastic film production device used in the film production field. Background Art

[0002] VCI film is a metal protective packaging material that has seen rapid growth in recent years. The vapor corrosion inhibitor contained in it evaporates onto the metal surface, forming a protective layer that inhibits corrosion. This is of great significance to the metalworking industry, and the emergence of VCI film is a major event in the field of metal protection, often described as a "wet-to-dry" revolution in metal rust prevention technology.

[0003] After searching, the specifications of patent publication numbers CN101481476B and CN101638784B both disclose the production process of vapor phase anti-rust film, which involves the grinding operation of the solid components of the vapor phase corrosion inhibitor. During the grinding, grinding equipment is required. The most important point for the grinding of the solid components of the vapor phase corrosion inhibitor is to prevent or weaken the volatilization of the vapor phase corrosion inhibitor during grinding to reduce material loss.

[0004] Furthermore, patent publication CN101481476B discloses a zinc powder production grinding device with an anti-volatilization function. The device comprises a housing, a screen, a rotating shaft, a rotating disk, and a lower external gear. The housing houses a grinding roller with a cooling pipe installed inside, a connecting pipe is installed between the water pumps, the screen is fixedly mounted below the grinding roller, the rotating shaft is mounted at the lower end of the grinding roller, driven gears are mounted on the left and right sides of a telescopic rod, and the rotating disk is mounted below the screen. This zinc powder production grinding device with an anti-volatilization function can be used in grinding the solid component of vapor-phase corrosion inhibitors.

[0005] Based on the above search and in combination with the existing technology, it is found that most of the grinding devices similar to those disclosed above in the existing technology can only grind solids into particles (powders) of a fixed size at one time. In actual grinding operations, the vapor corrosion inhibitor solids need to be ground multiple times so that large pieces of solids can be gradually ground to the expected particle size (to ensure the uniformity and integrity of the particles). Multiple grinding will increase material loss. Therefore, a vapor phase rust-proof plastic film production equipment is proposed to improve the above problems. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide a gas phase anti-rust plastic film production equipment that can complete the grinding operation from coarse grinding to fine grinding in one go and has better anti-volatilization effect.

[0007] To solve the above problems, the present invention provides a vapor phase rust-proof plastic film production device, including a grinding tank provided with a feed hopper and a discharge pipe, a grinding core and a grinding hopper installed in the grinding tank, the grinding core and the grinding hopper are clearance-matched, and protruding grinding protrusions are formed on the side walls adjacent to each other, the grinding hopper is fixed to the inner wall of the grinding tank, the upper portion of the grinding core is rotatably connected to the top of the grinding tank via a drive shaft, a servo motor is fixed to the top of the grinding tank via a bracket, the upper end of the drive shaft is fixedly passed through the grinding tank and is fixed to the output shaft of the servo motor, and a screen is fixedly embedded in the bottom of the grinding hopper;

[0008] An annular gap is formed between the grinding core and the grinding bucket, which is larger at the top and smaller at the bottom. The grinding protrusions on the grinding core and the grinding bucket decrease from top to bottom, and the gap between the grinding protrusions on the grinding core and the grinding bucket also decreases from top to bottom.

[0009] A first cooling chamber is formed in the grinding core, a second cooling chamber is formed in the grinding bucket, a water tank is installed on the outside of the grinding tank, and two sets of water supply pipes and return pipes are installed on the water tank. The two sets of water supply pipes and return pipes respectively transport circulating cooling water to the first cooling chamber and the second cooling chamber.

[0010] In the above-mentioned vapor phase anti-rust plastic film production equipment, the purpose of completing the grinding in one go is achieved by changing the shape of the gap between the grinding core and the grinding bucket and processing the grinding protrusions of the grinding core and the grinding bucket into suitable sizes;

[0011] In addition, by setting up a dual cooling method, both the grinding core and the grinding bucket can cool the ground material, thereby improving its anti-volatility effect, further reducing the loss of material during grinding, and reducing production costs.

[0012] As a further improvement of the present application, a plurality of heat conducting plates are fixedly embedded on the grinding core, the plurality of heat conducting plates are arranged in an array along the circumference of the central axis of the grinding core, and the plurality of heat conducting plates are spaced apart in the gaps between adjacent grinding protrusions of the grinding core;

[0013] One end of each of the heat conducting sheets extends into the first cooling cavity, and the other end of each of the heat conducting sheets extends into the gap between the grinding core and the grinding bucket. The heat conducting sheets are staggered with the grinding protrusions of the grinding bucket.

[0014] As a further improvement of the present application, a water inlet channel and a water outlet channel extending parallel to the axial direction of the drive shaft are opened in the drive shaft, and the water inlet channel and the water outlet channel are separated from each other;

[0015] The upper end of the water inlet channel is connected to one of the water supply pipes through a connector, the upper end of the water outlet channel is connected to one of the water return pipes through a connector, the lower end of the water inlet channel is connected to the top of the first cooling chamber, and the lower end of the water outlet channel is also connected to the top of the first cooling chamber;

[0016] An isolation piece is formed in the first cooling cavity to isolate the water inlet channel and the water outlet channel.

[0017] As a further improvement of the present application, a water supply ring shell is fixed to the end of the water supply pipe, and the water supply ring shell is rotatably embedded on the drive shaft. A water inlet connected to the water supply ring shell is opened at the upper end of the water inlet channel;

[0018] A return water ring shell is fixed at the end of the return water pipe. The return water ring shell is rotatably sleeved on the driving shaft. A water outlet connected to the return water ring shell is opened at the upper end of the water outlet channel.

[0019] As a further improvement of the present application, a water inlet and a water outlet are provided at the upper end of the first cooling chamber. The water inlet is connected to the lower end of the water inlet channel, and the water outlet is connected to the lower end of the water outlet channel.

[0020] As a further improvement of the present application, the isolation member includes a partition plate integrally formed with the grinding core, the lower end of the partition plate extends above the bottom of the first cooling chamber, and the partition plate is located between the water inlet and the water outlet.

[0021] As another improvement of the present application, a follower shaft is fixed at the bottom of the grinding core, the lower end of the follower shaft rotates through the screen and is fixed with a vibrating rod, the vibrating rod is located below the screen and there is a gap with the screen, and a spring plate is fixed at the bottom of the screen that coincides with the end position of the vibrating rod, and when the vibrating rod hits the spring plate, the spring plate is deformed and vibrates.

[0022] As another improvement of the present application, a pressing blade group is fixed at the lower part of the driving shaft. The pressing blade group is an inclined plate. The pressing blade group is inclined toward the side where the driving shaft rotates and the planes of the upper and lower ends form an opening. The gap between the pressing blade group is set at the upper part of the grinding core and the grinding bucket.

[0023] In summary, by changing the shape of the gap between the grinding core and the grinding bucket and processing the grinding protrusions of the grinding core and the grinding bucket into suitable sizes, the material passing through the gap between the grinding core and the grinding bucket can be gradually ground into the expected small-diameter particles, thereby achieving the purpose of one-time grinding. In addition, the grinding method of gradually changing the grinding particle size makes the ground raw materials more uniform and the particle integrity is better, which is conducive to subsequent processing and use.

[0024] In addition, by setting up a double cooling structure, the grinding core and the grinding bucket can both cool the ground material, thereby improving its anti-volatility effect, further reducing material loss during grinding, and lowering production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application;

[0026] Figure 2 This is a cross-sectional view of the first embodiment of the present application;

[0027] Figure 3 for Figure 2 A magnified view of the structure at point A;

[0028] Figure 4 for Figure 2 A magnified view of the structure at point B in FIG;

[0029] Figure 5 for Figure 2 A magnified view of the structure at point C in FIG;

[0030] Figure 6 This is a top cross-sectional view of the grinding core according to the first embodiment of the present application;

[0031] Figure 7 This is a structural diagram of the second embodiment of the present application;

[0032] Figure 8 This is a structural diagram of the third embodiment of this application.

[0033] Description of the numbers in the figure:

[0034] 1. Grinding jar; 11. Feed hopper; 2. Grinding core; 21. First cooling chamber; 211. Water inlet; 212. Water outlet; 22. Partition plate; 3. Grinding hopper; 31. Second cooling chamber; 4. Servo motor; 5. Drive shaft; 51. Water inlet channel; 511. Water inlet; 52. Water outlet channel; 521. Water outlet; 6. Water tank; 61. Water supply pipe; 611. Water supply ring shell; 62. Return water pipe; 621. Return water ring shell; 7. Screen; 8. Heat conducting plate; 9. Follow-up shaft; 91. Vibrating rod; 92. Spring plate; 10. Pressing blade group. DETAILED DESCRIPTION

[0035] The following describes three implementation methods of the present application in detail with reference to the accompanying drawings.

[0036] The first implementation method:

[0037] Figure 1-6 The figure shows a vapor phase anti-rust plastic film production equipment, including a grinding tank 1 provided with a feed hopper 11 and a discharge pipe, a grinding core 2 and a grinding bucket 3 are installed in the grinding tank 1, the grinding core 2 and the grinding bucket 3 are clearance-matched, and the side walls close to each other are formed with protruding grinding protrusions, the grinding bucket 3 is fixed to the inner wall of the grinding tank 1, and the upper part of the grinding core 2 is rotatably connected to the top of the grinding tank 1 via a drive shaft 5. Specifically, the drive shaft 5 is rotatably connected to the grinding tank 1, and the lower end of the drive shaft 5 is fixed to the grinding core 2. A servo motor 4 is fixed to the top of the grinding tank 1 through a bracket, and the upper end of the drive shaft 5 is fixedly passed through the grinding tank 1 and fixed to the output shaft of the servo motor 4. A screen 7 is fixedly embedded at the bottom of the grinding bucket 3;

[0038] An annular gap is formed between the grinding core 2 and the grinding bucket 3, which is larger at the top and smaller at the bottom. The grinding protrusions on the grinding core 2 and the grinding bucket 3 decrease in size from top to bottom, and the gap between the grinding protrusions on the grinding core 2 and the grinding bucket 3 also decreases in size from top to bottom.

[0039] A first cooling chamber 21 is formed in the grinding core 2, a second cooling chamber 31 is formed in the grinding bucket 3, a water tank 6 is installed on the outside of the grinding tank 1, and two sets of water supply pipes 61 and return pipes 62 are installed on the water tank 6. The two sets of water supply pipes 61 and return pipes 62 respectively transport circulating cooling water to the first cooling chamber 21 and the second cooling chamber 31. The water tank 6 should also be equipped with a circulating pump for transporting cooling water and a refrigerator for refrigeration, thereby ensuring the circulating cooling effect of the cooling water.

[0040] Based on the above structure, by changing the shape of the gap between the grinding core 2 and the grinding bucket 3 and processing the grinding protrusions of the grinding core 2 and the grinding bucket 3 into suitable sizes, the material (solid vapor corrosion inhibitor) passing through the gap between the grinding core 2 and the grinding bucket 3 can be gradually ground into the desired small-diameter particles, thereby achieving the purpose of one-time grinding. In addition, the grinding method of gradually changing the grinding particle size makes the ground raw materials more uniform and the particle integrity is better, which is conducive to subsequent processing and use.

[0041] In addition, by providing a double cooling structure, both the grinding core 2 and the grinding bucket 3 can cool the ground material, thereby improving its anti-volatilization effect, further reducing material loss during grinding, and lowering production costs.

[0042] Furthermore, a plurality of heat conducting sheets 8 are fixedly embedded on the grinding core 2. The heat conducting sheets 8 are made of a heat conducting material (such as aluminum nitride, graphene, etc.) with good heat conductivity in the prior art and which does not react with the vapor phase corrosion inhibitor. The plurality of heat conducting sheets 8 are arranged in an array along the circumference of the central axis of the grinding core 2. The plurality of heat conducting sheets 8 are spaced apart in the gaps between adjacent grinding protrusions of the grinding core 2.

[0043] One end of each of the heat conducting plates 8 extends into the first cooling chamber 21 , and the other end of each of the heat conducting plates 8 extends into the gap between the grinding core 2 and the grinding bucket 3 . The heat conducting plates 8 are staggered with the grinding protrusions of the grinding bucket 3 .

[0044] By setting the heat conducting plate 8, the heat conducting plate 8 can extend into the material being ground, establishing a rapid heat exchange channel between the ground material and the cooling water, thereby further enhancing the cooling effect on the ground material and achieving the purpose of inhibiting the volatilization of the material, thereby further reducing the loss of the material during the grinding process and reducing production costs.

[0045] Furthermore, a water inlet channel 51 and a water outlet channel 52 extending parallel to the axial direction of the drive shaft 5 are formed in the drive shaft 5, and the water inlet channel 51 and the water outlet channel 52 are separated from each other;

[0046] The upper end of the water inlet channel 51 is connected to one of the water supply pipes 61 through a connector, the upper end of the water outlet channel 52 is connected to one of the return pipes 62 through a connector, the lower end of the water inlet channel 51 is connected to the top of the first cooling chamber 21, and the lower end of the water outlet channel 52 is also connected to the top of the first cooling chamber 21;

[0047] An isolation member is formed in the first cooling chamber 21 to isolate the water inlet channel 51 and the water outlet channel 52;

[0048] A water supply ring housing 611 is fixed to the end of the water supply pipe 61. The water supply ring housing 611 is rotatably embedded on the drive shaft 5. A water inlet 511 is opened at the upper end of the water inlet channel 51 and communicates with the water supply ring housing 611.

[0049] A return water annular casing 621 is fixed to the end of the return water pipe 62. The return water annular casing 621 is rotatably sleeved on the drive shaft 5. A water outlet 521 is opened at the upper end of the water outlet channel 52 and communicates with the return water annular casing 621.

[0050] A water inlet 211 and a water outlet 212 are formed at the upper end of the first cooling chamber 21. The water inlet 211 is connected to the lower end of the water inlet channel 51, and the water outlet 212 is connected to the lower end of the water outlet channel 52.

[0051] The isolating member includes a partition plate 22 integrally formed with the grinding core 2 . The lower end of the partition plate 22 extends to above the bottom of the first cooling chamber 21 . The partition plate 22 is located between the water inlet 211 and the water outlet 212 .

[0052] The water in the water tank 6 enters the water supply annular casing 611 through the water supply pipe 61, and further enters the first cooling chamber 21 through the water inlet channel 51 and the water inlet hole 211. After passing through the bottom of one side of the first cooling chamber 21 and the lower end of the partition plate 22, it moves to the other side. After completely flowing through the first cooling chamber 21, it enters the return water annular casing 621 through the water outlet hole 212 and the water outlet channel 52, and finally returns to the water tank 6 through the return pipe 62 to enter the next cycle. While meeting the circulating cooling, it can ensure the normal rotation and grinding operation of the grinding core 2.

[0053] Another set of water supply pipes 61 and water return pipes 62 are directly fixed to the grinding bucket 3 and communicated with the second cooling chamber 31 to deliver circulating cooling water into the second cooling chamber 31 to achieve double cooling and suppress volatilization.

[0054] Second implementation method:

[0055] Figure 7As shown, a follower shaft 9 is fixed at the bottom of the grinding core 2, and the lower end of the follower shaft 9 rotates through the screen 7 and is fixed with a vibrating rod 91. The vibrating rod 91 is located below the screen 7 and there is a gap with the screen 7. A spring plate 92 is fixed at the bottom of the screen 7, which coincides with the end position of the vibrating rod 91. When the vibrating rod 91 hits the spring plate 92, the spring plate 92 is deformed and vibrates.

[0056] By adding a follower shaft 9 at the lower end of the grinding core 2, when the grinding core 2 rotates, the follower shaft 9 is driven to rotate synchronously, and when the follower shaft 9 rotates, the vibration rod 91 is driven to rotate. When the vibration rod 91 coincides with the position of the spring plate 92 during rotation, a collision is generated, causing the spring plate 92 to deform and vibrate. The vibration force is transmitted to the screen 7, causing the screen 7 to vibrate, thereby reducing the probability of the screen 7 being blocked, and ensuring that the ground material passes through the screen 7 smoothly, thereby improving the screening and discharge efficiency.

[0057] The third implementation method:

[0058] Figure 8 As shown, a pressing blade group 10 is fixed to the lower part of the driving shaft 5. The pressing blade group 10 is an inclined plate. The pressing blade group 10 is inclined toward the side where the driving shaft 5 rotates, and the planes of the upper and lower ends form an opening. The gap between the pressing blade group 10 is set at the upper part of the grinding core 2 and the grinding bucket 3.

[0059] By setting the pressing blade group 10, when the driving shaft 5 rotates, the pressing blade group 10 is driven to rotate synchronously. When the pressing blade group 10 rotates, it presses down the material above the gap between the grinding core 2 and the grinding bucket 3, so that the material can better enter the gap between the grinding core 2 and the grinding bucket 3, which has the effect of automatic plugging and promotes the grinding progress.

[0060] It should be further explained that the technical features such as the servo motor, circulating pump, refrigerator, telescopic rod, screen, etc. involved in the patent application of this invention should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional choices in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0061] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A gas phase anti-rust plastic film production device, comprising a grinding tank (1) provided with a feed hopper (11) and a discharge pipe, a grinding core (2) and a grinding hopper (3) being installed in the grinding tank (1), the grinding core (2) and the grinding hopper (3) being clearance-matched and the side walls close to each other being formed with protruding grinding protrusions, the grinding hopper (3) being fixed to the inner wall of the grinding tank (1), the upper part of the grinding core (2) being rotatably connected to the top of the grinding tank (1) through a drive shaft (5), a servo motor (4) being fixed to the top of the grinding tank (1) through a bracket, the upper end of the drive shaft (5) being fixedly passed through the grinding tank (1) and being fixed to the output shaft of the servo motor (4), a screen (7) being fixedly embedded in the bottom of the grinding hopper (3), characterized in that: An annular gap is formed between the grinding core (2) and the grinding bucket (3), with the gap being larger at the top and smaller at the bottom. The grinding protrusions on the grinding core (2) and the grinding bucket (3) decrease in size from top to bottom, and the gap between the grinding protrusions on the grinding core (2) and the grinding bucket (3) also decreases in size from top to bottom. A first cooling chamber (21) is formed in the grinding core (2), a second cooling chamber (31) is formed in the grinding bucket (3), a water tank (6) is installed outside the grinding tank (1), and two groups of water supply pipes (61) and return pipes (62) are installed on the water tank (6), and the two groups of water supply pipes (61) and return pipes (62) respectively transport circulating cooling water to the first cooling chamber (21) and the second cooling chamber (31).

2. The vapor phase anti-rust plastic film production equipment according to claim 1, characterized in that: A plurality of heat conducting plates (8) are fixedly embedded on the grinding core (2), the plurality of heat conducting plates (8) are distributed in an array along the circumference of the central axis of the grinding core (2), and the plurality of heat conducting plates (8) are spaced apart in the gaps between adjacent grinding protrusions of the grinding core (2); One end of each of the plurality of heat conducting sheets (8) extends into the first cooling cavity (21), and the other end of each of the plurality of heat conducting sheets (8) extends into the gap between the grinding core (2) and the grinding bucket (3), and each of the plurality of heat conducting sheets (8) is arranged in an interlaced manner with the grinding protrusions of the grinding bucket (3).

3. The vapor phase anti-rust plastic film production equipment according to claim 1, characterized in that: A water inlet channel (51) and a water outlet channel (52) extending parallel to the axial direction of the drive shaft (5) are provided in the drive shaft (5), and the water inlet channel (51) and the water outlet channel (52) are separated from each other; The upper end of the water inlet channel (51) is connected to one of the water supply pipes (61) via a connector, the upper end of the water outlet channel (52) is connected to one of the return water pipes (62) via a connector, the lower end of the water inlet channel (51) is connected to the top of the first cooling chamber (21), and the lower end of the water outlet channel (52) is also connected to the top of the first cooling chamber (21); An isolation piece is formed in the first cooling cavity (21) to isolate the water inlet channel (51) and the water outlet channel (52).

4. The vapor phase anti-rust plastic film production equipment according to claim 3, characterized in that: A water supply ring shell (611) is fixed to the end of the water supply pipe (61), and the water supply ring shell (611) is rotatably embedded on the drive shaft (5). The upper end of the water inlet channel (51) is provided with a water inlet (511) that is in communication with the water supply ring shell (611); A return water annular casing (621) is fixed to the end of the return water pipe (62), and the return water annular casing (621) is rotatably sleeved on the drive shaft (5). A water outlet (521) communicating with the return water annular casing (621) is provided at the upper end of the water outlet channel (52).

5. The vapor phase anti-rust plastic film production equipment according to claim 3, characterized in that: A water inlet hole (211) and a water outlet hole (212) are provided at the upper end of the first cooling cavity (21), the water inlet hole (211) being in communication with the lower end of the water inlet channel (51), and the water outlet hole (212) being in communication with the lower end of the water outlet channel (52).

6. The vapor phase anti-rust plastic film production equipment according to claim 5, characterized in that: The isolating member comprises a partition plate (22) integrally formed with the grinding core (2), the lower end of the partition plate (22) extending to above the bottom of the first cooling cavity (21), and the partition plate (22) is located between the water inlet hole (211) and the water outlet hole (212).

7. The vapor phase anti-rust plastic film production equipment according to claim 1, characterized in that: A follower shaft (9) is fixed to the bottom of the grinding core (2), and the lower end of the follower shaft (9) rotates and penetrates the screen (7) and is fixed with a vibration rod (91). The vibration rod (91) is located below the screen (7) and has a gap with the screen (7). A spring plate (92) is fixed to the bottom of the screen (7) and coincides with the end position of the vibration rod (91). When the vibration rod (91) strikes the spring plate (92), the spring plate (92) is deformed and vibrates.

8. The vapor phase anti-rust plastic film production equipment according to claim 1, characterized in that: A pressing blade group (10) is fixed to the lower part of the driving shaft (5). The pressing blade group (10) is an inclined plate body. The pressing blade group (10) is inclined toward the side of the driving shaft (5) that rotates, and the upper end and the lower end of the plane form an opening. The gap of the pressing blade group (10) is set at the upper part of the grinding core (2) and the grinding bucket (3).

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