Acoustic elastic film manufacturing equipment

Abstract

The present invention discloses an acoustic elastic film manufacturing device, which relates to the field of film manufacturing technology, including a cast film forming mechanism, and also includes: an impurity-free width adjustment mechanism, which is installed on the cast film forming mechanism, including a movable sealing mechanism and a material blocking mechanism; the movable sealing mechanism includes two baffles; the material blocking mechanism is arranged on a side close to the two baffles, including two material separators; the present invention installs an impurity-free width adjustment mechanism to promptly remove the material remaining on the inner wall of the die after size adjustment, thereby preventing the material from solidifying on the inner wall of the mold. At the same time, it avoids the previously solidified material from affecting the formation of the film during the process of adjusting from a small size to a large size, thereby improving the molding quality of the film. In addition, the mechanism can also realize non-stop size switching during the processing process, ensuring continuous adjustment of the film, ensuring its connectivity, avoiding redirecting the film installation, and thus improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of film manufacturing, and in particular to an acoustic elastic film manufacturing device. Background Art

[0002] Acoustic elastic film, also known as PET film or acoustic membrane, is a widely used membrane material in electroacoustic devices. This film is typically manufactured using die casting or extrusion processes. During production, films may be produced in various sizes to meet different order requirements. However, several technical challenges remain in the processing phase:

[0003] 1. The film is prone to breakage due to the difference in discharge speed caused by the change in material pressure during adjustment. The film needs to be re-guided and installed, affecting production efficiency.

[0004] 2. After the size is reduced, the area where the material flows through the die head is reduced. After the area is reduced, the film material will remain and solidify in the die head where the film material previously flowed. Therefore, when the size is increased and adjusted, the residual material will directly affect the molding quality of the film. Summary of the Invention

[0005] The present invention provides an acoustic elastic film manufacturing device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An acoustic elastic film manufacturing device includes a cast film forming mechanism and further includes:

[0008] An impurity-free width adjustment mechanism, which is installed on the cast film forming mechanism and includes a movable sealing mechanism and a material blocking mechanism;

[0009] The mobile sealing mechanism includes two baffles;

[0010] The material blocking mechanism is arranged on a side close to the two baffles and includes two material separation plates;

[0011] a residue processing mechanism 1, which is connected to the impurity-free width adjustment mechanism and includes two scrapers 1;

[0012] The pressure relief collection mechanism is installed on one side of the baffle and includes a dirty material tank and a clean material tank;

[0013] The residue processing mechanism 2 is connected to the pressure relief collection mechanism and includes two scrapers 2.

[0014] Furthermore, the cast film forming mechanism includes a die head, the top of the die head is connected to a feed pipe, and the feed pipe is externally connected to a feeder.

[0015] Furthermore, the mobile sealing mechanism further comprises an adjustment box fixed on both sides of the die head, and one side of the adjustment box is rotatably connected to a screw rod 1;

[0016] The outer thread sleeve of the screw rod is provided with a movable plate 1, and the movable plate is set inside the adjustment box. A pointer is fixed on one side of the movable plate 1, and a scale is opened on one side of the adjustment box. The pointer points to the scale. The bottom of the movable plate 1 is fixedly connected to the top of the baffle.

[0017] A motor 1 is fixed to the top of one of the regulating boxes, a gear 1 is fixed to the output end of the motor 1, a gear 2 is meshed with one side of the gear 1, and the gear 2 is fixedly connected to one of the screw rods 1;

[0018] One side of the die head is rotatably connected to a rotating shaft, and both ends of the rotating shaft are transmission-connected to two screw rods through a pulley assembly.

[0019] Furthermore, the material blocking mechanism further comprises a chute extending through the material separator plate, a slide plate being sleeved inside the chute, a plurality of springs being fixed on the top of the slide plate, and the top ends of the plurality of springs being fixedly connected to the top wall of the chute;

[0020] A fixing plate is fixed on both sides of the slide, and an electromagnet 1 is fixed on the top of the fixing plate;

[0021] Concave plates with grooves facing downwards are fixed on both sides of the die head, and an iron plate is fixed on the inner wall of the groove of the concave plate. The size of the electromagnet matches the size of the groove of the concave plate, and the electromagnet is attracted to the iron plate when it is started.

[0022] Furthermore, the residue processing mechanism 1 includes a second motor fixed to the bottom of the baffle, a second screw is fixed to the output end of the second motor, a second movable plate is sleeved on the external thread of the second screw, one side of the second movable plate is fixedly connected to the first scraper, and one side of the first scraper is in contact with the baffle;

[0023] A second electromagnet is fixed inside the first scraper, and a second iron plate is fixed inside the separator. When the second electromagnet is started, it attracts the second iron plate.

[0024] Furthermore, the pressure relief collection mechanism further comprises a feed port extending through the baffle, and a slope is provided on one side edge of the feed port;

[0025] A push rod motor is fixed on one side of the baffle, and the output end of the push rod motor is fixedly connected to the top of the waste material box;

[0026] One side of the clean material box is fixedly connected to the dirty material box;

[0027] The bottoms of the clean material box and the dirty material box are both provided with openings, and the bottoms of the openings are slidably connected with sealing plates.

[0028] Furthermore, the second residue processing mechanism also includes a connecting frame fixed to one side of the second scraper, one side of the connecting frame is fixedly connected to the waste material box, and the second scraper moves to fit with one side of the partition plate.

[0029] Furthermore, a controller is fixed on one side of the die head, and the controller is electrically connected to the motor 1, the motor 2, the electromagnet 1, the push rod motor and the electromagnet 2.

[0030] Compared with the existing technology, the beneficial effects of the present invention are:

[0031] 1. The present invention utilizes a non-contaminant width adjustment mechanism to promptly remove residual material from the die wall after size adjustment, preventing it from solidifying on the die wall. This prevents previously solidified material from affecting film formation during the adjustment process from a small size to a large size, thereby improving film forming quality. Furthermore, this mechanism enables continuous size switching during processing, ensuring continuous film adjustment and connectivity, avoiding the need for redirecting film installation, and thus improving production efficiency.

[0032] 2. The present invention installs a residue processing mechanism to separate the scraped residue from the scraper and collect it into a waste material box, thereby avoiding residue inside the die head, ensuring the cleanliness of the die head, and preventing the residue after adjustment from affecting the film forming quality.

[0033] 3. The present invention installs a pressure relief collection mechanism to effectively collect excess material during the adjustment process, thereby avoiding the phenomenon of increased material pressure caused by material accumulation, ensuring a stable discharge speed and not affecting the molding effect.

[0034] 4. The present invention installs a second residue processing mechanism to perform fine processing on the contact position of the film edge to prevent surface residues from affecting the molding quality of the film edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of the cast film forming mechanism of an acoustic elastic film manufacturing equipment proposed in the present invention.

[0036] Figure 2 This is a structural schematic diagram of the second residue processing mechanism of an acoustic elastic film manufacturing device proposed by the present invention.

[0037] Figure 3 This is a schematic diagram of the internal structure of the die head of an acoustic elastic film manufacturing device proposed in the present invention.

[0038] Figure 4This is a schematic structural diagram of the impurity-free width adjustment mechanism of an acoustic elastic film manufacturing device proposed by the present invention.

[0039] Figure 5 This is a structural schematic diagram of a residue processing mechanism of an acoustic elastic film manufacturing device proposed by the present invention.

[0040] Figure 6 This is a schematic structural diagram of the pressure relief and collection mechanism of an acoustic elastic film manufacturing device proposed in the present invention.

[0041] Figure 7 This is a schematic diagram of the internal structure of the clean material box of the acoustic elastic film manufacturing equipment proposed in the present invention.

[0042] Figure 8 for Figure 3 Enlarged structural diagram at point A.

[0043] Figure 9 This is a schematic diagram of the cross-sectional structure of a concave plate of an acoustic elastic film manufacturing device proposed in the present invention.

[0044] Figure: 1, cast film forming mechanism; 11, die head; 12, feed pipe; 2, impurity-free width adjustment mechanism; 21, adjustment box; 22, screw 1; 23, moving plate 1; 24, pointer; 25, motor 1; 26, gear 1; 27, pulley assembly; 28, baffle; 29, separator; 210, chute; 211, spring; 212, slide plate; 213, fixed plate; 214, electromagnet 1; 215, concave Plate; 216, iron plate one; 217, rotating shaft; 218, gear two; 3, residue processing mechanism one; 31, motor two; 32, screw two; 33, moving plate two; 34, scraper one; 35, electromagnet two; 4, pressure relief collection mechanism; 41, feed port; 42, slope; 43, push rod motor; 44, clean material box; 45, dirty material box; 46, sealing plate; 5, residue processing mechanism two; 51, connecting frame; 52, scraper two. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0048] Example: Refer to Figures 1-9 : An acoustic elastic film manufacturing device, comprising a cast film forming mechanism 1, and further comprising:

[0049] The impurity-free width adjustment mechanism 2 is installed on the cast film forming mechanism 1 and includes a movable sealing mechanism and a material blocking mechanism;

[0050] The mobile sealing mechanism includes two baffles 28;

[0051] The material blocking mechanism is arranged on the side close to the two baffles 28 and includes two material separation plates 29;

[0052] A residue processing mechanism 3, connected to the impurity-free width adjustment mechanism 2, comprising two scrapers 34;

[0053] The pressure relief collection mechanism 4 is installed on one side of the baffle 28 and includes a dirty material tank 45 and a clean material tank 44;

[0054] The residue processing mechanism 2 5 is connected to the pressure relief collection mechanism 4 and includes two scrapers 2 52 .

[0055] The cast film forming mechanism 1 comprises a die head 11 , the top of the die head 11 is connected to a feed pipe 12 , and the feed pipe 12 is externally connected to a feeder.

[0056] The mobile sealing mechanism also includes an adjustment box 21 fixed on both sides of the die head 11, and one side of the adjustment box 21 is rotatably connected to a screw 22;

[0057] The external thread of the screw rod 22 is provided with a movable plate 23, which is sleeved inside the regulating box 21. A pointer 24 is fixed to one side of the movable plate 23. A scale is provided on one side of the regulating box 21, and the pointer 24 points to the scale. The bottom of the movable plate 23 is fixedly connected to the top of the baffle 28.

[0058] A motor 25 is fixed to the top of one of the regulating boxes 21, a gear 26 is fixed to the output end of the motor 25, a gear 218 is meshed with one side of the gear 26, and the gear 218 is fixedly connected to one of the screws 22;

[0059] One side of the die head 11 is rotatably connected to a rotating shaft 217, and both ends of the rotating shaft 217 are transmission-connected to two screw rods 22 through a pulley assembly 27.

[0060] The material blocking mechanism further includes a chute 210 extending through the material separator 29. A slide plate 212 is sleeved inside the chute 210. A plurality of springs 211 are fixed to the top of the slide plate 212. The top ends of the plurality of springs 211 are fixedly connected to the top wall of the chute 210.

[0061] A fixing plate 213 is fixed on both sides of the slide plate 212, and an electromagnet 214 is fixed on the top of the fixing plate 213;

[0062] A concave plate 215 with the groove facing downward is fixed on both sides of the die head 11. An iron plate 216 is fixed to the inner wall of the groove of the concave plate 215. The size of the electromagnet 214 matches the size of the groove of the concave plate 215, and the electromagnet 214 is attracted to the iron plate 216 when it is started.

[0063] The residue processing mechanism 1 3 includes a second motor 31 fixed to the bottom of the baffle 28. A second screw 32 is fixed to the output end of the second motor 31. The external thread of the second screw 32 is provided with a second movable plate 33. One side of the second movable plate 33 is fixedly connected to a first scraper 34. One side of the first scraper 34 is in contact with the baffle 28.

[0064] An electromagnet 2 35 is fixed inside the scraper 1 34 , and an iron plate 2 is fixed inside the separator 29 . When the electromagnet 2 35 is started, it attracts the iron plate 2 .

[0065] The pressure relief collection mechanism 4 further includes a feed port 41 extending through the baffle 28, and a slope 42 is formed on one side edge of the feed port 41.

[0066] A push rod motor 43 is fixed to one side of the baffle 28, and the output end of the push rod motor 43 is fixedly connected to the top of the waste material box 45;

[0067] One side of the clean material box 44 is fixedly connected to the dirty material box 45;

[0068] The bottoms of the clean material box 44 and the dirty material box 45 are both provided with openings, and the bottoms of the openings are slidably connected to sealing plates 46 .

[0069] The residue processing mechanism 2 5 also includes a connecting frame 51 fixed on one side of the scraper 2 52. One side of the connecting frame 51 is fixedly connected to the dirt box 45. The scraper 2 52 moves to fit one side of the partition plate 29. Before and after the production of the film, the scraper 2 52 cleans the surface of the partition plate 29 to avoid residue affecting the forming of the edge of the film.

[0070] A controller is fixed to one side of the die head 11 , and the controller is electrically connected to the motor 1 25 , the motor 2 31 , the electromagnet 1 214 , the push rod motor 43 and the electromagnet 2 35 .

[0071] Working principle:

[0072] The melted material enters the die head 11 through the feed pipe 12, diffuses, and flows out through the die lip of the die head 11 to form a film.

[0073] When other sizes of films need to be produced during the processing, the film should be continuously adjusted to ensure the connectivity of the film, avoid redirecting the film installation, and improve production efficiency. The specific steps are as follows:

[0074] The controller controls the motor 1 25 to drive the gear 1 26 to rotate. The rotation of the gear 1 26 drives the gear 2 218 and the screw 1 22 to rotate. The screw 1 22 drives the other screw 1 22 to rotate through the pulley assembly 27 and the rotating shaft 217. The two screws 1 22 rotate synchronously for adjustment to ensure the accuracy of width adjustment and the center position of the film.

[0075] When the motor 1 25 drives the gear 1 26 to rotate forward, the gear 1 26 drives the gear 2 218 and the screw 1 22 to rotate reversely, so that the movable plate 1 23 drives the baffle 28 and the partition plate 29 to move closer to each other. In the process of approaching, in order to ensure that the film is continuously connected, the feeding amount needs to be adjusted after adjustment. If the material is directly adjusted to the amount required for the next size film during the adjustment process, such as adjusting from a large size to a small size, then the amount of material will decrease, which will cause the film to become thinner and break. Therefore, the feed box needs to be adjusted after the adjustment is completed. Then, when the baffle 28 blocks the discharge port, part of the material will be blocked by the baffle 28 and accumulate. The accumulation will cause the discharge speed to increase, and the increase in discharge speed will also affect the formation of the film. Therefore, during the adjustment process, the material is continuously fed according to the amount of the previous size, and the material fed into the die head 11 flows normally according to the flow channel of the die head 11. When the baffle 28 seals the die lip, the material above will pass through the feed port 41 into the inside of the clean material box 44, avoiding the situation where the discharge speed is accelerated due to material accumulation and affecting the film formation.

[0076] After stopping the movement, start the motor 2 31 to drive the screw 2 32 to rotate forward, so that the movable plate 2 33 drives the scraper 1 34 and the electromagnet 2 35 to move upward, and the electromagnet 2 35 drives the partition plate 29 to move upward by magnetic attraction. Because the top inner wall of the die head 11 is a sloped structure, the upward movement distance of the movable plate 23 corresponds to the movement distance of the baffle 28, so that the top of the partition plate 29 and the top of the scraper 1 34 contact the slope and stop moving. Because of the slope, when the partition plate 29 and the scraper 1 34 follow and move different distances, the length of the bottom leakage of the partition plate 29 and the scraper 1 34 is different. The two are attracted together, and the attraction between the two gives a thrust to the separator 29, so that the separator 29 is more firmly fixed inside the die head 11 and effectively blocks the incoming material. Then, the controller adjusts the feed rate to process the film of the specified size.

[0077] When the material on the inner wall of the die head 11 above the baffle 28 can no longer flow into the clean material box 44, turn off the electromagnet 2 35, start the motor 1 25 to drive the gear 1 26 to reverse, so that the gear 2 218 and the screw 1 22 rotate forward, so that the movable plate 1 23 drives the baffle 28, the scraper 1 34, the clean material box 44, the dirty material box 45 and the scraper 2 52 to move back. When the scraper 2 52 moves back to the other side of the partition plate 29, start the push rod motor 43 to pull the dirty material box 45, and the dirty material box 45 moves to the bottom of the baffle 28, and then the scraper 1 34 moves in the die head 11. During the movement, the motor 2 31 drives the screw 2 32 to reverse, so that the scraper 1 34 moves down along the slope to scrape off the residue stuck on the inner wall. When it moves to the initial point , start the motor 2 31 to drive the screw 2 32 to reverse, so that the scraper 1 34 moves downward. When the scraper 1 34 moves downward, the baffle 28 separates the residue scraped off on one side of the scraper 1 34 from the scraper 1 34, and the scraped residue will enter the interior of the waste material box 45 through the slope 42 and the feed port 41. Because when the large size is adjusted to the small size, the contact area between the material and the inner wall of the die head 11 becomes smaller, and some material will remain in the uncontacted area. The material will degrade and solidify when it stays in the die head 11 for a long time, making the material stick to the inner wall of the mold and difficult to clean. Cleaning it after adjustment can not only prevent the material from solidifying on the inner wall of the mold, but also prevent the previously solidified material from affecting the formation of the film when the small size is adjusted to the large size, thereby improving the film forming quality;

[0078] After cleaning, the push rod motor 43 moves the clean material box 44 to the bottom of the baffle 28, and then starts the motor 1 25 to rotate forward, so that the scraper 1 34 approaches the material separation plate 29. When approaching, the motor 2 31 drives the screw 2 32 to rotate forward, so that the scraper 1 34 moves closely along the inclined surface, and then the electromagnet 2 35 is magnetically attracted to the iron plate 2 inside the material separation plate 29, so that the scraper 1 34 is connected to the material separation plate 29;

[0079] When the small-sized film is adjusted to a large size, the electromagnet 214 and the iron plate 216 are turned off to release the magnetic attraction, and the spring 211 pushes the electromagnet 214 to reset, and then the motor 2 31 is started to reverse so that the scraper 34 drives the separator 29 and other structures to move down quickly. At the same time, in order to ensure the continuity of the film, the feeding amount is increased. After completion, the scraper 34 and the separator 29 move back, and after moving to the set position, stop moving, and then fix the separator 29 according to the above steps, and then the scraper 34 moves to clean the inner wall of the die head 11.

[0080] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An acoustic elastic film manufacturing device, comprising a cast film forming mechanism (1), characterized in that: Also includes: An impurity-free width adjustment mechanism (2), which is mounted on the cast film forming mechanism (1), and comprises a movable sealing mechanism and a material blocking mechanism; The movable sealing mechanism includes two baffles (28); The material blocking mechanism is arranged on a side close to the two baffles (28), and includes two material separation plates (29); A residue processing mechanism (3) connected to the impurity-free width adjustment mechanism (2) includes two scrapers (34); A pressure relief collection mechanism (4), which is mounted on one side of the baffle (28) and includes a dirty material tank (45) and a clean material tank (44); A second residue treatment mechanism (5), which is connected to the pressure relief collection mechanism (4) and includes two second scrapers (52); The cast film forming mechanism (1) comprises a die head (11); The movable sealing mechanism further comprises an adjustment box (21) fixed on both sides of the die head (11), and one side of the adjustment box (21) is rotatably connected to a screw rod (22); The outer thread of the screw rod (22) is provided with a movable plate (23), the movable plate (23) is sleeved inside the regulating box (21), a pointer (24) is fixed on one side of the movable plate (23), a scale is opened on one side of the regulating box (21), the pointer (24) points to the scale, and the bottom of the movable plate (23) is fixedly connected to the top of the baffle (28); A motor 1 (25) is fixed to the top of one of the regulating boxes (21), a gear 1 (26) is fixed to the output end of the motor 1 (25), a gear 2 (218) is meshed with one side of the gear 1 (26), and the gear 2 (218) is fixedly connected to one of the screw rods 1 (22); One side of the die head (11) is rotatably connected to a rotating shaft (217), and both ends of the rotating shaft (217) are transmission-connected to two screw rods (22) via a pulley assembly (27); The material blocking mechanism further comprises a slide groove (210) extending through the material separator (29), a slide plate (212) being sleeved inside the slide groove (210), a plurality of springs (211) being fixed on the top of the slide plate (212), and the top ends of the plurality of springs (211) being fixedly connected to the top wall of the slide groove (210); A fixing plate (213) is fixed on both sides of the slide plate (212), and an electromagnet (214) is fixed on the top of the fixing plate (213); A concave plate (215) with a groove facing downward is fixed on both sides of the die head (11), an iron plate (216) is fixed to the inner wall of the groove of the concave plate (215), the size of the electromagnet (214) matches the size of the groove of the concave plate (215), and the electromagnet (214) attracts the iron plate (216) when it is started; The residue processing mechanism (1) includes a motor (31) fixed to the bottom of the baffle (28), a screw (32) is fixed to the output end of the motor (31), a movable plate (33) is provided on the external thread sleeve of the screw (32), one side of the movable plate (33) is fixedly connected to the scraper (34), and one side of the scraper (34) is in contact with the baffle (28); The scraper plate 1 (34) is internally fixed with an electromagnet 2 (35), and the separator plate (29) is internally fixed with an iron plate 2. When the electromagnet 2 (35) is activated, it attracts the iron plate 2.

2. The acoustic elastic film manufacturing equipment according to claim 1, characterized in that: The top of the die head (11) is connected to a feed pipe (12), and the feed pipe (12) is externally connected to a feeder.

3. The acoustic elastic film manufacturing equipment according to claim 2, characterized in that: The pressure relief collection mechanism (4) further includes a feed port (41) extending through the baffle (28), and a slope (42) is provided on one side edge of the feed port (41); A push rod motor (43) is fixed to one side of the baffle (28), and an output end of the push rod motor (43) is fixedly connected to the top of the waste material box (45); One side of the clean material box (44) is fixedly connected to the dirty material box (45); The bottoms of the clean material box (44) and the dirty material box (45) are both provided with openings, and the bottoms of the openings are slidably connected to sealing plates (46).

4. The acoustic elastic film manufacturing equipment according to claim 3, characterized in that: The second residual processing mechanism (5) further includes a connecting frame (51) fixed to one side of the second scraper (52), one side of the connecting frame (51) is fixedly connected to the waste material box (45), and the second scraper (52) moves to fit one side of the separator plate (29).

5. The acoustic elastic film manufacturing equipment according to claim 4, characterized in that: A controller is fixed on one side of the die head (11), and the controller is electrically connected to motor 1 (25), motor 2 (31), electromagnet 1 (214), push rod motor (43) and electromagnet 2 (35).

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