Raw material proportioning device for polyester film production

Abstract

The invention discloses a raw material proportioning device for polyester film production, and belongs to the field of polyester film production, the raw material proportioning device comprises a distributing and feeding device, a baffle is arranged on the inner surface of the distributing and feeding device, rotating shafts are fixedly connected to the front and back surfaces of the baffle, and the rotating shafts penetrate through the inner surface of the distributing and feeding device and are rotationally connected with the inner surface of the distributing and feeding device; and a driving assembly is arranged on the outer surface of the distributing and feeding device and comprises a supporting plate, the supporting plate is fixedly connected with the front face of the distributing and feeding device, and an electric push rod is fixedly connected to the upper portion of the supporting plate. The raw materials are blocked by arranging the baffle, the driving assembly ascends to drive the baffle to be opened, so that the raw materials fall down to facilitate raw material proportioning, the driving assembly ascends to drive the extrusion plate to extrude and crush the raw materials, the particle size of the raw materials is conveniently reduced, and the effect of more accurate proportioning is achieved.

Description

Technical Field

[0001] The present application relates to the field of polyester film production, and in particular to a raw material proportioning device for polyester film production. Background Art

[0002] The main raw material for polyester film is polyester chips, and the raw material for polyester chips is crude oil. Crude oil is refined into paraxylene through a certain process, and paraxylene is used as a raw material to generate purified terephthalic acid, which is polymerized with ethylene glycol to generate polyethylene terephthalate, referred to as polyester. In the production process of polyester film, its raw materials need to be proportioned.

[0003] The patent document with the announcement number CN108438935B discloses a precise material distribution device for crop processing. The invention discloses a precise material distribution device for crop processing, including a material distribution device, the material distribution device is a hollow circular tube structure, an annular channel is penetrated in the material distribution device, a central vertical plate is provided in the annular channel, both sides of the central vertical plate are fixedly connected to the side wall of the annular channel, two semicircular partitions are symmetrically provided in the upper end of the annular channel, one end of the two semicircular partitions are inserted into the first groove outside the upper end of the central vertical plate, and the other ends of the two semicircular partitions are inserted into the second groove in the side wall of the annular channel. In the above application document, the sealing of the annular channel is released by flipping the semicircular partition downward. At this time, the user can perform the feeding operation. However, when feeding, the raw material may have large particles, and there will be large gaps between the particles. The quality of the raw material under the same volume may be different, which affects the precise proportioning. It is not convenient to crush it to reduce the particle size during loading, which is not convenient for the precise proportioning of the raw material. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a raw material proportioning device for producing polyester film, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present application provides a raw material proportioning device for polyester film production, including a material dispensing device, a baffle is provided on the inner surface of the material dispensing device, a rotating shaft is fixedly connected to the front and back sides of the baffle, the rotating shaft penetrates the inner surface of the material dispensing device and is rotatably connected, an extrusion plate is provided above the baffle, a driving assembly is provided on the outer surface of the material dispensing device, the driving assembly includes a support plate, the support plate is fixedly connected to the front of the material dispensing device, an electric push rod is fixedly connected above the support plate, a rack is fixedly connected to the upper end of the electric push rod, gears are provided on the left and right sides of the rack, and the gears are connected to the rotating shaft The outer surface is fixedly connected, the gear is adapted to the rack, a pushing block is fixedly connected to the upper end of the rack, a top block is slidably connected above the pushing block, a slider is fixedly connected to the rear of the top block, a slide groove is provided on the front side of the material dispensing device, the slider is slidably connected to the inner surface of the slide groove, a third spring is elastically connected between the slider and the inner surface of the slide groove, the slider is fixedly connected to the front side of the extrusion plate, a rotating rod is fixedly connected to the rear end of the rotating shaft, a connecting rod is fixedly connected below the rotating rod, a counterweight is fixedly connected below the connecting rod, and there are two groups of driving components, which are respectively arranged on the front and back sides of the material dispensing device.

[0006] Preferably, the driving assembly further comprises a telescopic rod, the lower end of the telescopic rod is fixedly connected to the upper part of the support plate, and the upper end of the telescopic rod is fixedly connected to the lower part of the pushing block.

[0007] Preferably, there are two extrusion plates, and baffles are fixedly connected to the left and right sides of the two extrusion plates. The baffles on the two extrusion plates are staggered with each other, and the baffles movably penetrate the inner surface of the material dispensing device.

[0008] Preferably, a grinding assembly is provided on the outer surface of the extrusion plate, and the grinding assembly includes a lifting block, which is slidably connected to the inner surface of the extrusion plate, and a first spring is elastically connected between the lifting block and the bottom of the inner surface of the extrusion plate, and one end of the lifting block away from the inner surface of the extrusion plate is fixedly connected to the grinding plate, and a pushing bar is fixedly connected above the lifting block, and the pushing bar movably penetrates the top of the inner surface of the extrusion plate, and a sliding column is fixedly connected to the upper end of the pushing bar.

[0009] Preferably, the grinding assembly further comprises a guide bar, wherein the guide bar is fixedly connected to the inner surface of the material dispensing device, a guide tooth is fixedly connected below the guide bar, and the guide tooth is slidably connected to the top of the sliding column.

[0010] Preferably, a pushing assembly is provided above the extrusion plate, and the pushing assembly includes a connecting plate, the connecting plate is fixedly connected to the top of the extrusion plate, a hydraulic bin is fixedly connected to the top of the connecting plate through a support rod, a first hydraulic rod and a second hydraulic rod are slidably connected to the inner surface of the hydraulic bin, the second hydraulic rod is movably penetrated through the top of the connecting plate, and a push plate is fixedly connected to the lower end of the second hydraulic rod.

[0011] Preferably, the pushing assembly further comprises a top plate, the top plate is fixedly connected to the left end of the first hydraulic rod, and a second spring is elastically connected between the top plate and the hydraulic compartment.

[0012] Preferably, a guide beam is fixedly connected to the inner surface of the material dispensing device.

[0013] The benefits of this application are: (1) The present application blocks the raw materials by setting a baffle, and drives the baffle to open by the rising of the driving component so that the raw materials fall down to facilitate the proportioning of the raw materials. The rising of the driving component also drives the extrusion plate to extrude and crush the raw materials to reduce the particle size of the raw materials, which has the effect of facilitating more accurate proportioning.

[0014] (2) In the present application, while the extrusion plate is used to extrude and crush the raw material, the grinding assembly will drive the grinding plate to rise and fall repeatedly as the extrusion plate moves, so that the raw material is ground by the up and down movement of the grinding plate while the extrusion plate is pressed against the raw material, which has the effect of enhancing the extrusion and crushing effect.

[0015] (3) In the present application, the raw materials are squeezed and crushed by the extrusion plate. The raw materials will gather together after being crushed. When the extrusion plate is squeezed into place, it will drive the pushing component to push the gathered raw materials downward, pressing them downward so that they fall off from between the extrusion plate and the inner wall of the feeding device, which has the effect of facilitating the falling of the crushed raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a sectional view of the overall structure of the present invention; Figure 3 It is a bottom view of the cross-sectional structure of the present invention; Figure 4 It is a right sectional view of the overall structure of the present invention; Figure 5 The present invention Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 6 The present invention Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 7 The present invention Figure 3 A magnified schematic diagram of the structure at C in the middle; Figure 8 The present invention Figure 4 Enlarged schematic diagram of the structure at point D in the middle.

[0017] In the above figure, 1. Feeding device; 2. Baffle; 3. Rotating shaft; 4. Extrusion plate; 5. Driving assembly; 501. Support plate; 502. Electric push rod; 503. Rack; 504. Gear; 505. Push block; 506. Top block; 507. Sliding block; 508. Slide; 509. Telescopic rod; 510. Third spring; 511. Rotating rod; 512. Connecting rod; 513. Counterweight; 6. Baffle; 7. Grinding Components; 701, lifting block; 702, first spring; 703, grinding plate; 704, pushing bar; 705, sliding column; 706, guide bar; 707, guide tooth; 8, pushing component; 801, connecting plate; 802, supporting rod; 803, hydraulic bin; 804, first hydraulic rod; 805, second hydraulic rod; 806, pushing plate; 807, top plate; 808, second spring; 9, guide beam. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0020] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0021] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0022] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0024] See also Figure 1-Figure 8The present embodiment provides a raw material proportioning device for polyester film production, including a material dispensing device 1, which is specifically a square-mouthed bin body with open upper and lower ends. A baffle 2 is provided on the inner surface of the material dispensing device 1, and the number of baffles 2 is two. Grooves are provided on the left and right sides of the inner surface of the material dispensing device 1 for placing the baffle 2, so as to improve the sealing property of the baffle 2. The baffle 2 is fixedly connected with a rotating shaft 3 on both sides, and each baffle 2 is provided with two rotating shafts 3. The rotating shaft 3 penetrates and is rotatably connected to the inner surface of the material dispensing device 1. A bearing is provided between the rotating shaft 3 and the material dispensing device 1, and an extrusion plate 4 is provided above the baffle 2. A driving assembly 5 is provided on the outer surface of the material dispensing device 1, and the driving assembly 5 includes a support plate 501, and the support plate 501 is connected to the dispensing device 1. The front of the material device 1 is fixedly connected, and an electric push rod 502 is fixedly connected above the support plate 501. A rack 503 is fixedly connected to the upper end of the electric push rod 502. Teeth are arranged on the left and right sides of the rack 503. The teeth are only arranged at the lower half of the rack 503. Gears 504 are arranged on the left and right sides of the rack 503. The gear 504 is fixedly connected to the outer surface of the rotating shaft 3. The gear 504 is adapted to the rack 503. After the gear 504 rises, its teeth will contact and mesh with the gear 504, thereby driving the gear 504 to rotate. A pushing block 505 is fixedly connected to the upper end of the rack 503. The pushing block 505 is in the shape of a triangle. A top block 506 is slidably connected above the pushing block 505. The top block 506 is arranged on the left side above each pushing block 505. On the right and left sides, an inclined surface adapted to the pushing block 505 is arranged below the top block 506, a slider 507 is fixedly connected to the rear of the top block 506, a slide groove 508 is provided on the front side of the dispensing device 1, the slider 507 is slidably connected to the inner surface of the slide groove 508, and a third spring 510 is elastically connected between the slider 507 and the inner surface of the slide groove 508. When the pushing block 505 rises and pushes the top block 506, it will drive the slider 507 to slide in the slide groove 508, thereby squeezing the third spring 510. When the pushing block 505 falls, the third spring 510 will elastically reset to make the slider 507 slide in the slide groove 508, thereby driving the top block 506 to re-fit with the lowered pushing block 505. The slider 507 is fixedly connected to the front side of the extrusion plate 4, and the rear end of the rotating shaft 3 is fixedly connected to the A rotating rod 511 is connected, a connecting rod 512 is fixedly connected below the rotating rod 511, and a counterweight 513 is fixedly connected below the connecting rod 512. There are two rotating rods 511, connecting rods 512 and counterweights 513. The connecting rods 512 and counterweights 513 on the two rotating rods 511 are staggered. There are two groups of drive components 5, and the two groups of drive components 5 are respectively arranged on the front and back sides of the dispensing device 1. The drive component 5 also includes a telescopic rod 509, which is arranged on the left and right sides of the electric push rod 502. The lower end of the telescopic rod 509 is fixedly connected to the top of the support plate 501, and the upper end of the telescopic rod 509 is fixedly connected to the bottom of the push block 505. There are two extrusion plates 4, and a groove is arranged on the extrusion plate 4. The groove is arranged on the opposite side of the two extrusion plates 4.The two extrusion plates 4 are fixedly connected with baffles 6 on the left and right sides. Each extrusion plate 4 is provided with a shallow groove for accommodating the baffle 6 on the other extrusion plate 4. The baffles 6 on the two extrusion plates 4 are mutually staggered. The baffles 6 and the inner surface of the dispensing device 1 are movably penetrated. The inner surface of the dispensing device 1 is fixedly connected with a guide beam 9. An inclined surface is provided above the guide beam 9 to guide the raw materials entering the dispensing device 1 so that they fall into the space between the extrusion plate 4 and the inner wall of the dispensing device 1.

[0025] When the above-mentioned equipment is used, the raw materials for the production of polyester film in the required proportion are first poured into the opening above the dispensing device 1. The raw materials will be guided by the inclined surface of the guide beam 9, so that they fall into the space between the extrusion plate 4 and the inner wall of the dispensing device 1, and accumulate on the baffle 2. When it is necessary to load the external dispensing equipment, the electric push rods 502 on the front and rear sides of the dispensing device 1 are first started to simultaneously push the rack 503 up. After the rack 503 rises, its teeth will contact and mesh with the gear 504, and then the gears 504 on both sides will be driven to rotate outwards. The rotation of the gear 504 will drive the rotating shaft 3 to rotate, causing the baffle 2 to flip downward, thereby causing the raw materials to fall, thereby facilitating the loading of the raw materials for polyester film production into the external batching equipment for proportioning. At the same time, the rotation of the rotating shaft 3 will also drive the rotating rod 511 to rotate, thereby driving the connecting rod 512 to lift the counterweight block 513. When the rack 503 rises, it will not immediately turn the gear 504 to rotate to open the baffle 2, but will first drive the push block 505 to rise. As the push block 505 rises, it will push the top blocks 506 on the left and right sides to the sides, thereby driving the slider 507 in the slide groove 50 8, at this time, the slider 507 will squeeze the third spring 510 in the chute 508, and the sliding of the slider 507 will drive the extrusion plate 4 to approach the inner wall side of the dispensing device 1. At this time, the two extrusion plates 4 will move away from each other and drive the grinding plate 703 to squeeze the inner wall of the dispensing device 1, so as to squeeze and crush the raw materials. When the extrusion plate 4 moves, it will also drive the baffle 6 to move. The baffle 6 will close the chute 508 at any time to prevent the raw materials from leaking out. When it is necessary to stop loading, the electric push rod 502 is started to pull the rack 503 down, and the rack 503 will pull the two gears 504 rotates inward, thereby driving the rotating shaft 3 to rotate and causing the baffle 2 to flip upward, thereby closing the inner surface of the dispensing device 1 and stopping the material discharge. At the same time, as the rack 503 descends, it will drive the push block 505 to descend, so that it will be separated from the top block 506. After the top block 506 supports it, the compressed third spring 510 will reset, thereby pushing the slider 507 to slide in the slide groove 508, so that the two sliders 507 approach each other until they are re-fitted with the push block 505. At this time, the two extrusion plates 4 will also approach each other, leaving space with the inner wall of the dispensing device 1 to facilitate extrusion during the next material discharge. Example

[0026] See also Figure 3-Figure 7 A grinding assembly 7 is provided on the outer surface of the extrusion plate 4, and the grinding assembly 7 includes a lifting block 701, which is slidably connected to the inner surface of the extrusion plate 4, and a first spring 702 is elastically connected between the lifting block 701 and the bottom of the inner surface of the extrusion plate 4, and the upper end of the first spring 702 is fixedly connected to the bottom of the lifting block 701, and the lower end of the first spring 702 is fixedly connected to the bottom of the inner surface of the extrusion plate 4. The first spring 702 will apply elastic force to make the lifting block 701 rise on the inner surface of the extrusion plate 4 under normal conditions, and the end of the lifting block 701 away from the inner surface of the extrusion plate 4 is fixedly connected to the grinding plate 703, and the grinding plate 703 is provided with a hemispherical protrusion, and the top of the lifting block 701 is fixedly connected to a push bar 704, The push bar 704 is movably penetrated by the top of the inner surface of the extrusion plate 4, and an opening for passing the push bar 704 is provided on the extrusion plate 4. A sliding column 705 is fixedly connected to the upper end of the push bar 704, and the sliding column 705 is cylindrical in shape. The grinding assembly 7 also includes a guide bar 706, and an inclined surface is provided above the guide bar 706 to prevent the falling raw materials from falling on the guide bar 706. The guide bar 706 is fixedly connected to the inner surface of the dispensing device 1, and the left and right ends of the guide bar 706 are respectively fixedly connected to the left and right sides of the inner surface of the dispensing device 1. A guide tooth 707 is fixedly connected below the guide bar 706, and the guide tooth 707 is in a triangular shape. The guide tooth 707 is slidably connected to the top of the sliding column 705.

[0027] When the above-mentioned device is used in practice, when the extrusion plate 4 extrude the raw materials in the dispensing device 1, the movement of the extrusion plate 4 will also drive the push bar 704 to move, and the movement of the push bar 704 will drive the sliding column 705 to slide on the guide tooth 707 below the guide bar 706, and the elastic force applied to the lifting block 701 by the first spring 702 will drive the push bar 704 to make the sliding column 705 always fit on the guide tooth 707. At this time, with the movement of the extrusion plate 4, the sliding column 705 will slide on the guide tooth 707, and then drive the push bar 704 to rise and fall repeatedly, and the repeated rise and fall of the push bar 704 will drive the lifting block 701 to move the grinding plate 703 up and down. At this time, while the grinding plate 703 is driven by the extrusion plate 4 to press against the raw material, the grinding plate 703 can move up and down to grind the extruded raw material, thereby achieving the effect of enhancing the crushing effect of the raw material. Example

[0028] See also Figure 2-Figure 6A pushing assembly 8 is arranged above the extrusion plate 4, and the pushing assembly 8 includes a connecting plate 801. Two connecting plates 801 are arranged on each extrusion plate 4. The connecting plate 801 is fixedly connected to the top of the extrusion plate 4. A hydraulic chamber 803 is fixedly connected to the top of the connecting plate 801 through a support rod 802. The hydraulic chamber 803 has three bending parts. Liquid is arranged in the hydraulic chamber 803. The inner surface of the hydraulic chamber 803 is slidably connected with a first hydraulic rod 804 and a second hydraulic rod 805. The first hydraulic rod 804 and the second hydraulic rod 805 are both provided with pistons that are slidably connected with the inner surface of the hydraulic chamber 803. The second hydraulic rod 805 is movably penetrated with the top of the connecting plate 801. A through hole is used to pass the second hydraulic rod 805, and a push plate 806 is fixedly connected to the lower end of the second hydraulic rod 805. There are two push plates 806, and two second hydraulic rods 805 are connected to each push plate 806. There are four support rods 802, hydraulic bin 803, first hydraulic rod 804 and second hydraulic rod 805. The pushing assembly 8 also includes a top plate 807, which is circular in shape and fixedly connected to the left end of the first hydraulic rod 804. A second spring 808 is elastically connected between the top plate 807 and the hydraulic bin 803, and one end of the second spring 808 is fixedly connected to the top plate 807, and the other end is fixedly connected to the end of the hydraulic bin 803 facing the top plate 807.

[0029] When the above-mentioned equipment is used, when the extrusion plate 4 is squeezed toward the inner wall of the dispensing device 1, it will not only crush the raw materials, but also squeeze them together. As the extrusion plate 4 moves toward the inner wall of the dispensing device 1, the top plate 807 will first contact the inner wall of the dispensing device 1 and be squeezed as the extrusion plate 4 moves. The top plate 807 will drive the first hydraulic rod 804 to push into the hydraulic bin 803. The first hydraulic rod 804 will push the liquid in the hydraulic bin 803, and then drive the second hydraulic rod 805 to extend from the bottom of the hydraulic bin 803. The extension of the second hydraulic rod 805 will drive the push plate 806 to descend. The descent of the push plate 806 will push the squeezed raw materials downward a little, so that the raw materials will fall off from between the grinding plate 703 on the extrusion plate 4 and the inner wall of the dispensing device 1, so as to facilitate unloading.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A raw material proportioning device for polyester film production, comprising a material proportioning device (1), characterized in that: The inner surface of the material dispensing device (1) is provided with a baffle (2), and the front and back surfaces of the baffle (2) are fixedly connected to a rotating shaft (3), and the rotating shaft (3) penetrates the inner surface of the material dispensing device (1) and is rotatably connected. An extrusion plate (4) is provided above the baffle (2), and a driving assembly (5) is provided on the outer surface of the material dispensing device (1), and the driving assembly (5) comprises a support plate (501), and the support plate (501) is fixedly connected to the front of the material dispensing device (1), and an electric push rod (502) is fixedly connected above the support plate (501), and a rack (503) is fixedly connected to the upper end of the electric push rod (502), and gears (504) are provided on the left and right sides of the rack (503), and the gears (504) are fixedly connected to the outer surface of the rotating shaft (3), and the gears (504) are adapted to the rack (503), and the rack (50 3) A push block (505) is fixedly connected to the upper end, a top block (506) is slidably connected to the top of the push block (505), a slider (507) is fixedly connected to the rear of the slider (506), a slide groove (508) is provided on the front of the material dispensing device (1), the slider (507) is slidably connected to the inner surface of the slide groove (508), a third spring (510) is elastically connected between the slider (507) and the inner surface of the slide groove (508), the slider (507) is fixedly connected to the front of the extrusion plate (4), a rotating rod (511) is fixedly connected to the rear end of the rotating shaft (3), a connecting rod (512) is fixedly connected to the bottom of the rotating rod (511), a counterweight (513) is fixedly connected to the bottom of the connecting rod (512), and the number of the driving components (5) is two groups, and the two groups of the driving components (5) are respectively arranged on the front and back sides of the material dispensing device (1).

2. A raw material proportioning device for polyester film production according to claim 1, characterized in that: The driving assembly (5) further comprises a telescopic rod (509), the lower end of the telescopic rod (509) being fixedly connected to the upper part of the support plate (501), and the upper end of the telescopic rod (509) being fixedly connected to the lower part of the pushing block (505).

3. A raw material proportioning device for polyester film production according to claim 1, characterized in that: The number of the extrusion plates (4) is two, and baffles (6) are fixedly connected to the left and right sides of the two extrusion plates (4). The baffles (6) on the two extrusion plates (4) are arranged in a staggered manner with respect to each other, and the baffles (6) movably penetrate the inner surface of the material dispensing device (1).

4. A raw material proportioning device for polyester film production according to claim 1, characterized in that: The outer surface of the extrusion plate (4) is provided with a grinding assembly (7), and the grinding assembly (7) comprises a lifting block (701), the lifting block (701) is slidably connected to the inner surface of the extrusion plate (4), a first spring (702) is elastically connected between the lifting block (701) and the bottom of the inner surface of the extrusion plate (4), one end of the lifting block (701) away from the inner surface of the extrusion plate (4) is fixedly connected to the grinding plate (703), a pushing bar (704) is fixedly connected above the lifting block (701), the pushing bar (704) movably penetrates the top of the inner surface of the extrusion plate (4), and a sliding column (705) is fixedly connected to the upper end of the pushing bar (704).

5. A raw material proportioning device for polyester film production according to claim 4, characterized in that: The grinding assembly (7) further comprises a guide bar (706), wherein the guide bar (706) is fixedly connected to the inner surface of the material dispensing device (1), a guide tooth (707) is fixedly connected below the guide bar (706), and the guide tooth (707) is slidably connected to the top of the sliding column (705).

6. A raw material proportioning device for polyester film production according to claim 1, characterized in that: A pushing assembly (8) is arranged above the extrusion plate (4), and the pushing assembly (8) comprises a connecting plate (801), the connecting plate (801) is fixedly connected to the top of the extrusion plate (4), a hydraulic bin (803) is fixedly connected to the top of the connecting plate (801) via a support rod (802), a first hydraulic rod (804) and a second hydraulic rod (805) are slidably connected to the inner surface of the hydraulic bin (803), the second hydraulic rod (805) movably penetrates the top of the connecting plate (801), and a pushing plate (806) is fixedly connected to the lower end of the second hydraulic rod (805).

7. A raw material proportioning device for polyester film production according to claim 6, characterized in that: The pushing assembly (8) further comprises a top plate (807), wherein the top plate (807) is fixedly connected to the left end of the first hydraulic rod (804), and a second spring (808) is elastically connected between the top plate (807) and the hydraulic chamber (803).

8. A raw material proportioning device for polyester film production according to claim 1, characterized in that: A guide crossbeam (9) is fixedly connected to the inner surface of the material dispensing device (1).

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