Plastic film casting machine

Abstract

The utility model relates to the technical field of plastic film casting machines, in particular to a plastic film casting machine which comprises a casting machine body, a fan cover pipe, an exhaust pipe, a supporting seat, a supporting groove, a supporting column, a drainage mechanism, a rotating mechanism and a lifting mechanism, the fan cover pipe is arranged on the casting machine body in a communicated mode, and the exhaust pipe is fixedly arranged on the fan cover pipe. The exhaust pipe is communicated with the fan cover pipe, the supporting seat is fixedly arranged in the exhaust pipe, the supporting groove is formed in the supporting seat, the supporting column is arranged in the supporting groove, the drainage mechanism is arranged on the supporting column and used for draining liquid drops attached to the surface of the exhaust pipe, and the rotating mechanism is arranged in the supporting seat and used for controlling the supporting column to rotate. The lifting mechanism is arranged in the supporting seat and used for controlling the supporting column to adjust the height, and by means of the technical scheme, the problem that in the related technology, condensed solvent liquid drops easily enter the casting machine through an exhaust pipeline is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film casting machines, in particular to a plastic film casting machine. Background Art

[0002] Cast film machine refers to the special equipment used to make cast film. It adopts high-precision electronic ceramic cast film machine and uses alumina as the main raw material for ceramic casting. First, the crushed powder is mixed with binder, plasticizer, dispersant and solvent to make slurry with a certain viscosity. The slurry flows down from the hopper and is scraped and coated on the special base belt with a certain thickness by a scraper. After drying and curing, it is peeled off from the top to become a thin film of green tape. Then, according to the size and shape of the finished product, the green tape needs to be punched, laminated and other processing to make the finished blank to be sintered.

[0003] During the processing in the tape casting drying tunnel inside the current tape casting machine, a large amount of organic solvent vapor is generated. In order to avoid affecting the health of the processing personnel, an exhaust duct is usually installed above the drying tunnel of the tape casting machine to continuously discharge the organic solvent vapor generated during the tape casting process from the drying tunnel of the tape casting machine. However, the temperature of the existing organic solvent vapor is usually below 200°C. Condensation will occur during the flow in the pipeline. After condensation, the solvent droplets will flow back to the tape casting machine through the exhaust duct under the action of their own gravity, thereby causing adverse effects.

[0004] To solve the above problems, it is proposed in the prior art to use a trumpet-shaped structure for passive guided storage. For example, CN202020243371.3 discloses a condensed solvent recovery device for a cast-film machine and a cast-film machine. Its technical solution discloses relevant content, namely, "a condensed solvent recovery device for a cast-film machine. Due to the collection shell and guide cone arranged between the exhaust duct and the ventilation duct, the guide cone can guide the refluxed solvent and make it flow into the collection chamber of the collection shell, thereby preventing the refluxed solvent from entering the exhaust duct of the cast-film machine and preventing the refluxed solvent from flowing back into the cast-film machine through the exhaust duct, thereby ensuring the normal operation of the cast-film machine."

[0005] However, for the above scheme, the volume of the passively guided condensed solvent droplets will gradually increase as they continue to flow downward, and will then be blown by the exhaust airflow, causing them to scatter. Some condensed solvent droplets will still enter the interior of the cast-film machine through the exhaust duct, and the actual effect is not ideal. Utility Model Content

[0006] The utility model provides a plastic film casting machine, which solves the problem in the related art that condensed solvent droplets easily enter the interior of the casting machine through an exhaust pipe.

[0007] The technical solution of the utility model is as follows: A plastic film casting machine, comprising a casting machine body, a wind hood pipe, an exhaust pipe, a support seat, a support groove, a support column, a drainage mechanism, a rotating mechanism and a lifting mechanism;

[0008] The wind hood pipe is connected and arranged on the casting machine body;

[0009] The exhaust pipe is fixedly arranged on the wind hood pipe, and the exhaust pipe is communicated with the wind hood pipe;

[0010] The support seat is fixedly arranged in the exhaust pipe;

[0011] The support groove is provided on the support seat;

[0012] The support column is arranged in the support groove;

[0013] The drainage mechanism is arranged on the support column and is used to drain the liquid droplets attached to the surface of the exhaust pipe;

[0014] The rotating mechanism is arranged in the supporting seat, and is used to control the supporting column to rotate;

[0015] The lifting mechanism is arranged in the support seat and is used for controlling the support column to adjust its height.

[0016] Preferably, the drainage mechanism comprises:

[0017] A guide plate, the guide plate is fixedly arranged on the side wall of the support column, and the guide plate is in contact with the side wall of the exhaust pipe;

[0018] A recovery port, the recovery port starting from the support column;

[0019] A recovery groove, the recovery groove being arranged on the support column corresponding to the recovery port;

[0020] A drainage groove, the drainage groove is arranged on the drainage plate, and the drainage groove is connected with the recovery port;

[0021] A scraper, the scraper is fixedly arranged on the guide plate, and the scraper is in contact with the inner wall of the exhaust pipe;

[0022] a driving ring, the driving ring being rotatably disposed in the recovery tank;

[0023] A collecting box and a negative pressure pump, wherein the collecting box and the negative pressure pump are fixedly arranged on the tape casting machine body;

[0024] Wherein, a recovery pipe is provided at the input end of the negative pressure pump, the recovery pipe passes through the support seat and is fixedly connected to the inner wall of the driving ring, and the output end of the negative pressure pump is communicated with the collection box;

[0025] A return pipe is arranged between the collecting box and the exhaust pipe.

[0026] Furthermore, the rotating mechanism comprises:

[0027] A rotating ring, the rotating ring is rotatably arranged on the supporting seat, and the inner wall of the rotating ring is slidably connected with the side wall of the supporting column;

[0028] A first annular rack, wherein the first annular rack is fixedly disposed on the outer wall of the rotating ring;

[0029] A first gear, the first gear is rotatably disposed on the support seat, and the first gear is meshed with the first annular rack;

[0030] A power input mechanism is disposed in the support seat and is used to control the first gear to rotate.

[0031] Furthermore, the power input mechanism includes:

[0032] A first cavity, wherein the first cavity is disposed in the support seat;

[0033] a first bevel gear, the first bevel gear being rotatably disposed on a side wall of the first cavity;

[0034] A second bevel gear, the second bevel gear being arranged on the side wall of the first cavity for rotation corresponding to the first gear, the first bevel gear being meshed with the second bevel gear;

[0035] A first connecting rod, the first connecting rod is fixedly disposed between the first gear and the second bevel gear;

[0036] A first motor is fixedly disposed on the exhaust duct, and an output end of the first motor is fixedly connected to the first bevel gear.

[0037] Furthermore, the lifting mechanism comprises:

[0038] A driving groove, wherein the driving groove is provided on the supporting column;

[0039] An internally threaded tube, the internally threaded tube being rotatably disposed in the driving groove, wherein the internally threaded tube extends out of the driving groove;

[0040] A positioning groove, the positioning groove is arranged on the side wall of the supporting groove;

[0041] A positioning post, wherein the positioning post is fixedly disposed on the internally threaded tube, and an end of the positioning post away from the internally threaded tube extends into the positioning groove;

[0042] A threaded rod, the threaded rod being rotatably disposed at the bottom of the supporting groove;

[0043] Wherein, the threaded rod extends into the internally threaded tube through threaded engagement;

[0044] A power transmission mechanism is arranged on the support seat and is used to control the threaded rod to rotate.

[0045] On the basis of the above scheme, the power transmission mechanism includes:

[0046] a second gear, the second gear being disposed on the support seat for rotation corresponding to the threaded rod;

[0047] Wherein, the second gear is fixedly connected to the threaded rod;

[0048] a third gear, the third gear being arranged on the support seat so as to rotate corresponding to the first cavity, and the third gear being meshed with the second gear;

[0049] A third bevel gear, the third bevel gear being arranged on the side wall of the first cavity for rotation corresponding to the third gear, the third bevel gear being meshed with the first bevel gear;

[0050] A second connecting rod is fixedly disposed between the third bevel gear and the third gear.

[0051] The working principle and beneficial effects of the utility model are:

[0052] 1. In the utility model, by setting the drainage mechanism, in the process of controlling the support column to rotate by the rotating mechanism, the droplets attached to the inner wall of the exhaust pipe can be scraped into the drainage groove by the movement of the scraper, and then the droplets and the cavity are sucked into the collection box through the recovery pipe under the action of the negative pressure pump, and the droplets fall into the collection box and the air is flushed back to the exhaust pipe through the return pipe, so that the droplets are collected easily;

[0053] 2. In the present invention, through the setting of the rotating mechanism, the operation of the first motor can drive the first bevel gear and the first gear to rotate, and at the same time, the engagement of the first gear and the first annular rack drives the rotating ring and the support column to rotate;

[0054] 3. In the utility model, the lifting mechanism is arranged to facilitate the height adjustment of the internally threaded tube and the support column by the rotation of the threaded rod, thereby controlling the height adjustment of the scraper and the guide plate in the process of moving around the support column, so as to facilitate the comprehensive scraping and collection of the droplets in the exhaust pipe;

[0055] 4. In the utility model, through the arrangement of the casting machine body, the wind hood pipe, the exhaust pipe, the support seat, the support groove, the support column, the drainage mechanism, the rotating mechanism and the lifting mechanism, the droplets attached to the inner wall of the exhaust pipe can be scraped into the drainage groove by the movement of the scraper, and then the droplets and the cavity are sucked into the collection box through the recovery pipe under the action of the negative pressure pump, so as to facilitate the continuous scraping and collection of the droplets attached to the exhaust pipe, and solve the problem in the related art that the condensed solvent droplets can easily enter the interior of the casting machine through the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] Figure 1 It is a schematic diagram of the structure of the utility model;

[0058] Figure 2 This is a schematic diagram of the cross-sectional structure of the exhaust pipe of the utility model;

[0059] Figure 3 This is a cross-sectional structural diagram of the rotating mechanism of the utility model;

[0060] Figure 4 This is a structural diagram of the lifting mechanism of the utility model;

[0061] Figure 5 It is a schematic diagram of the structure of the rotating mechanism and the lifting mechanism of the utility model.

[0062] In the figure: 1, cast film machine body; 2, wind hood pipe; 3, exhaust pipe; 4, support seat; 5, support column; 6, guide plate; 7, guide groove; 8, scraper; 9, drive ring; 10, collection box; 11, negative pressure pump; 12, recovery pipe; 13, return pipe; 14, rotating ring; 15, first annular rack; 16, first gear; 17, first bevel gear; 18, second bevel gear; 19, first motor; 20, internal threaded pipe; 21, positioning groove; 22, positioning column; 23, threaded rod; 24, second gear; 25, third gear; 26, third bevel gear. DETAILED DESCRIPTION

[0063] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0064] like Figure 1~Figure 5As shown, this embodiment proposes a plastic film casting machine, including a casting machine body 1, an air hood tube 2, an exhaust duct 3, a support seat 4, a support groove, a support column 5, a drainage mechanism, a rotating mechanism and a lifting mechanism. The air hood tube 2 is connected and arranged on the casting machine body 1, the exhaust duct 3 is fixedly arranged on the air hood tube 2, the exhaust duct 3 is connected with the air hood tube 2, the support seat 4 is fixedly arranged in the exhaust duct 3, the support groove is opened on the support seat 4, the support column 5 is arranged in the support groove, the drainage mechanism is arranged on the support column 5, and is used for draining droplets attached to the surface of the exhaust duct 3, the rotating mechanism is arranged in the support seat 4, and is used for controlling the rotation of the support column 5, and the lifting mechanism is arranged in the support seat 4, and is used for controlling the height adjustment of the support column 5.

[0065] Among them, the drainage mechanism includes a drainage plate 6, a recovery port, a recovery trough, a drainage trough 7, a scraper 8, a driving ring 9, a collecting box 10, a negative pressure pump 11 and a return pipe 13. The drainage plate 6 is fixedly arranged on the side wall of the support column 5, and the drainage plate 6 contacts the side wall of the exhaust pipe 3. The recovery port starts on the support column 5, and the recovery trough is opened on the support column 5 corresponding to the recovery port. The drainage trough 7 is opened on the drainage plate 6, and the drainage trough 7 is connected with the recovery port. The scraper 8 is fixedly arranged on the drainage plate 6, and the scraper 8 contacts the inner wall of the exhaust pipe 3. The driving ring 9 is rotatably arranged in the recovery trough. The collecting box 10 and the negative pressure pump 11 are fixedly arranged on the casting machine body 1, wherein a recovery pipe 12 is arranged at the input end of the negative pressure pump 11, and the recovery pipe 12 passes through the support seat 4 and is fixedly connected to the inner wall of the driving ring 9. The output end of the negative pressure pump 11 is connected with the collecting box 10, and the return pipe 13 is connected and arranged between the collecting box 10 and the exhaust pipe 3.

[0066] Specifically, during the exhaust process of the cast machine body 1 through the exhaust pipe 3, the operator controls the support column 5 to rotate through the rotating mechanism, and the rotation of the support column 5 can drive the drainage plate 6 and the scraper 8 to move around the support column 5. During the movement, the scraper 8 can scrape the droplets attached to the inner wall of the exhaust pipe 3 into the drainage groove 7. At the same time, the operator controls the operation of the negative pressure pump 11, so that the droplets and air in the drainage groove 7 are sucked into the collection box 10 through the recovery pipe 12. The droplets will fall to the bottom of the collection box 10 and the air will re-enter the exhaust pipe 3 through the reflux pipe 13.

[0067] Among them, the rotating mechanism includes a rotating ring 14, a first annular rack 15, a first gear 16 and a power input mechanism. The rotating ring 14 is rotatably set on the support seat 4, and the inner wall of the rotating ring 14 is slidably connected to the side wall of the support column 5. The first annular rack 15 is fixedly set on the outer wall of the rotating ring 14, and the first gear 16 is rotatably set on the support seat 4. The first gear 16 is meshed with the first annular rack 15. The power input mechanism is set in the support seat 4 for controlling the first gear 16 to rotate. The power input mechanism includes a first cavity, a first bevel gear 17, a second bevel gear 18, a first connecting rod and a first motor 19. The first cavity is opened in the support seat 4, and the first bevel gear 17 is rotatably set on the side wall of the first cavity. The second bevel gear 18 is rotatably set on the side wall of the first cavity corresponding to the first gear 16. The first bevel gear 17 is meshed with the second bevel gear 18. The first connecting rod is fixedly set between the first gear 16 and the second bevel gear 18. The first motor 19 is fixedly set on the exhaust pipe 3, and the output end of the first motor 19 is fixedly connected to the first bevel gear 17.

[0068] Specifically, the operation of the first motor 19 can drive the first bevel gear 17 and the first gear 16 to rotate, and at the same time, the engagement of the first gear 16 with the first annular rack 15 can drive the rotating ring 14 to rotate. During the rotation of the rotating ring 14, the supporting column 5 can be driven to rotate through the sliding cooperation relationship between the rotating ring 14 and the supporting column 5.

[0069] The lifting mechanism includes a driving groove, an internally threaded tube 20, a positioning groove 21, a positioning column 22, a threaded rod 23 and a power transmission mechanism, wherein the driving groove is arranged on the support column 5, and the internally threaded tube 20 is rotatably arranged in the driving groove, wherein the internally threaded tube 20 extends out of the driving groove, the positioning groove 21 is arranged on the side wall of the support groove, the positioning column 22 is fixedly arranged on the internally threaded tube 20, and the end of the positioning column 22 away from the internally threaded tube 20 extends into the positioning groove 21, and the threaded rod 23 is rotatably arranged at the bottom of the support groove, wherein the threaded rod 23 extends into the internally threaded tube 20 through threaded cooperation, and the power transmission mechanism is arranged on the support seat 4 for controlling the threaded rod 2 3 is rotated, the power transmission mechanism includes a second gear 24, a third gear 25, a third bevel gear 26 and a second connecting rod, the second gear 24 is arranged on the support seat 4 for rotation corresponding to the threaded rod 23, wherein the second gear 24 is fixedly connected to the threaded rod 23, the third gear 25 is arranged on the support seat 4 for rotation corresponding to the first cavity, the third gear 25 is meshed with the second gear 24, the third bevel gear 26 is arranged on the side wall of the first cavity for rotation corresponding to the third gear 25, the third bevel gear 26 is meshed with the first bevel gear 17, and the second connecting rod is fixedly arranged between the third bevel gear 26 and the third gear 25.

[0070] Specifically, during the rotation of the first bevel gear 17, the meshing of the first bevel gear 17 and the third bevel gear 26 can drive the third bevel gear 26 and the third gear 25 to rotate, and at the same time, the meshing of the third gear 25 and the second gear 24 can drive the second gear 24 and the threaded rod 23 to rotate, and the rotation of the threaded rod 23 can drive the internal threaded tube 20 and the support column 5 to adjust the height, thereby controlling the scraper 8 and the guide plate 6 to adjust the height in the process of moving around the support column 5, thereby facilitating the comprehensive scraping and collection of droplets in the exhaust pipe 3.

[0071] In the present embodiment, during the exhaust process of the casting machine body 1 through the exhaust pipe 3, the operator controls the first motor 19 to work, and the operation of the first motor 19 can drive the first bevel gear 17 and the first gear 16 to rotate, and at the same time, the engagement of the first gear 16 with the first annular rack 15 drives the rotating ring 14 to rotate. During the rotation of the rotating ring 14, the sliding cooperation relationship between the rotating ring 14 and the support column 5 can drive the support column 5 to rotate, and the rotation of the support column 5 can drive the drainage plate 6 and the scraper 8 to move around the support column 5. During the movement, the scraper 8 can scrape the droplets attached to the inner wall of the exhaust pipe 3 into the drainage groove 7. At the same time, the operator controls the negative pressure pump 11 to work, so that the drainage groove 7 is recovered through the recovery pipe 12. The liquid droplets and air in 7 are sucked into the collecting box 10, the liquid droplets will fall to the bottom of the collecting box 10 and the air will re-enter the exhaust pipe 3 through the return pipe 13. At the same time, during the rotation of the first bevel gear 17, the meshing of the first bevel gear 17 and the third bevel gear 26 can drive the third bevel gear 26 and the third gear 25 to rotate. At the same time, the meshing of the third gear 25 and the second gear 24 can drive the second gear 24 and the threaded rod 23 to rotate. The rotation of the threaded rod 23 can drive the internal threaded tube 20 and the support column 5 to adjust the height, thereby controlling the scraper 8 and the guide plate 6 to adjust the height during the movement around the support column 5, so that the liquid droplets in the exhaust pipe 3 can be comprehensively scraped and collected.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic film casting machine, characterized in that: include: Tape casting machine body (1); An air hood pipe (2), the air hood pipe (2) being arranged in communication with the tape casting machine body (1); An exhaust pipe (3), the exhaust pipe (3) being fixedly arranged on the wind hood pipe (2), the exhaust pipe (3) being in communication with the wind hood pipe (2); A support seat (4), the support seat (4) being fixedly arranged in the exhaust pipe (3); A support groove, the support groove being provided on the support seat (4); A support column (5), the support column (5) being arranged in the support groove; a drainage mechanism, the drainage mechanism being arranged on the support column (5) and being used for draining liquid droplets attached to the surface of the exhaust pipe (3); A rotating mechanism, the rotating mechanism being arranged in the supporting seat (4) and being used to control the supporting column (5) to rotate; A lifting mechanism, the lifting mechanism is arranged in the support seat (4) and is used to control the support column (5) to adjust its height.

2. A plastic film casting machine according to claim 1, characterized in that: The drainage mechanism comprises: A guide plate (6), the guide plate (6) being fixedly arranged on the side wall of the support column (5), the guide plate (6) being in contact with the side wall of the exhaust pipe (3); A recovery port, the recovery port starting from the support column (5); A recovery groove, the recovery groove being opened on the support column (5) corresponding to the recovery port; A drainage groove (7), wherein the drainage groove (7) is provided on the drainage plate (6), and the drainage groove (7) is connected to the recovery port; a scraper (8), the scraper (8) being fixedly arranged on the guide plate (6), the scraper (8) being in contact with the inner wall of the exhaust pipe (3); A drive ring (9), the drive ring (9) being rotatably disposed in the recovery groove; A collecting box (10) and a negative pressure pump (11), wherein the collecting box (10) and the negative pressure pump (11) are fixedly arranged on the tape casting machine body (1); The input end of the negative pressure pump (11) is provided with a recovery pipe (12), the recovery pipe (12) passes through the support seat (4) and is fixedly connected to the inner wall of the drive ring (9), and the output end of the negative pressure pump (11) is in communication with the collection box (10); A return pipe (13), the return pipe (13) being arranged in communication between the collection box (10) and the exhaust pipe (3).

3. A plastic film casting machine according to claim 2, characterized in that: The rotating mechanism comprises: A rotating ring (14), the rotating ring (14) being rotatably disposed on the support seat (4), the inner wall of the rotating ring (14) being slidably connected to the side wall of the support column (5); a first annular rack (15), the first annular rack (15) being fixedly arranged on the outer wall of the rotating ring (14); a first gear (16), the first gear (16) being rotatably disposed on the support seat (4), the first gear (16) being meshed with the first annular rack (15); A power input mechanism is arranged in the support seat (4) and is used to control the first gear (16) to rotate.

4. A plastic film casting machine according to claim 3, characterized in that: The power input mechanism comprises: A first cavity, the first cavity being disposed in the support seat (4); a first bevel gear (17), the first bevel gear (17) being rotatably disposed on a side wall of the first cavity; a second bevel gear (18), the second bevel gear (18) being arranged on the side wall of the first cavity so as to rotate correspondingly to the first gear (16), the first bevel gear (17) being meshed with the second bevel gear (18); a first connecting rod, the first connecting rod being fixedly arranged between the first gear (16) and the second bevel gear (18); A first motor (19), wherein the first motor (19) is fixedly disposed on the exhaust pipe (3), and an output end of the first motor (19) is fixedly connected to the first bevel gear (17).

5. A plastic film casting machine according to claim 4, characterized in that: The lifting mechanism comprises: A driving groove, the driving groove being formed on the supporting column (5); An internally threaded tube (20), the internally threaded tube (20) being rotatably disposed in the driving groove, wherein the internally threaded tube (20) extends out of the driving groove; A positioning groove (21), wherein the positioning groove (21) is formed on a side wall of the supporting groove; A positioning column (22), wherein the positioning column (22) is fixedly disposed on the internally threaded tube (20), and an end of the positioning column (22) away from the internally threaded tube (20) extends into the positioning groove (21); A threaded rod (23), the threaded rod (23) being rotatably disposed at the bottom of the supporting groove; Wherein, the threaded rod (23) extends into the internally threaded tube (20) through threaded engagement; A power transmission mechanism, the power transmission mechanism is arranged on the support seat (4) and is used to control the threaded rod (23) to rotate.

6. A plastic film casting machine according to claim 5, characterized in that: The power transmission mechanism comprises: a second gear (24), the second gear (24) being arranged on the support seat (4) so ​​as to rotate correspondingly to the threaded rod (23); Wherein, the second gear (24) is fixedly connected to the threaded rod (23); a third gear (25), the third gear (25) being arranged on the support seat (4) so ​​as to rotate correspondingly to the first cavity, the third gear (25) being meshed with the second gear (24); a third bevel gear (26), the third bevel gear (26) being arranged on the side wall of the first cavity so as to rotate correspondingly to the third gear (25), the third bevel gear (26) being meshed with the first bevel gear (17); A second connecting rod, the second connecting rod being fixedly arranged between the third bevel gear (26) and the third gear (25).

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