A raw material proportioning device for polyester film production

Abstract

The present application discloses a raw material proportioning device for polyester film production, which belongs to the field of polyester film production and includes a feeding device, wherein the inner surface of the feeding device is provided with a baffle, and the front and back surfaces of the baffle are fixedly connected to a rotating shaft, and the rotating shaft penetrates and is rotatably connected to the inner surface of the feeding device, and an extrusion plate is provided above the baffle, and the outer surface of the feeding device is provided with a drive assembly, and the drive assembly includes a support plate, and the support plate is fixedly connected to the front of the feeding device, and an electric push rod is fixedly connected above the support plate. The present application blocks the raw material by providing a baffle, and drives the baffle to open by rising the drive assembly, so that the raw material falls to facilitate raw material proportioning. The rising of the drive assembly also drives the extrusion plate to squeeze and crush the raw material, so as to reduce the particle size of the raw material, which has the effect of facilitating more accurate proportioning.

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 primary raw material for polyester film is polyester chips, which are made from crude oil. Paraxylene is extracted from crude oil through a specific process. Purified terephthalic acid (PTA) is then produced from PTA and ethylene glycol, which are then polymerized to form polyethylene terephthalate (PET), also known as polyester. The polyester film production process requires careful mixing of the raw materials.

[0003] Patent document No. CN108438935B discloses a precise feeding device for crop processing. The invention discloses a precise feeding device for crop processing, including a feeding device. The feeding device is a hollow circular tube structure. An annular channel is provided through the feeding device. A central vertical plate is provided in the annular channel. Both sides of the central vertical plate are fixedly connected to the side walls of the annular channel. Two semicircular partitions are symmetrically provided in the upper end of the annular channel. One end of each semicircular partition is inserted into a first groove on the outer side of the upper end of the central vertical plate, and the other end of each semicircular partition is inserted into a second groove in the side wall of the annular channel. In the above application document, the seal of the annular channel is released by flipping the semicircular partition downward. At this time, the user can perform the feeding operation. However, the raw materials may be large particles during feeding, and there will be large gaps between the particles. The quality of the raw materials under the same volume may vary, thereby affecting the precise ratio. It is not convenient to crush the raw materials to reduce the particle size during loading, which is not conducive to the precise ratio of the raw materials. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a raw material proportioning device for polyester film production, 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 feeding device, a baffle is provided on the inner surface of the feeding device, a rotating shaft is fixedly connected to the front and back sides of the baffle, the rotating shaft passes through the inner surface of the feeding device and is rotatably connected, an extrusion plate is provided above the baffle, a driving assembly is provided on the outer surface of the feeding device, the driving assembly includes a support plate, the support plate is fixedly connected to the front of the feeding 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, the upper end of the rack is fixedly connected to a pushing block, the top of the pushing block is slidably connected, the rear of the top block is fixedly connected to a slider, a slide groove is provided on the front of the feeding 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 of the extrusion plate, the rear end of the rotating shaft is fixedly connected to a rotating rod, a connecting rod is fixedly connected below the rotating rod, and a counterweight is fixedly connected below the connecting rod. There are two groups of driving components, and the two groups of driving components are respectively arranged on the front and back sides of the feeding 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 the end of the lifting block away from the inner surface of the extrusion plate is fixedly connected to the grinding plate, and a push bar is fixedly connected above the lifting block, and the push bar movably penetrates the top of the inner surface of the extrusion plate, and the upper end of the push bar is fixedly connected to a sliding column.

[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, and 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, which is fixedly connected to the top of the extrusion plate, and a hydraulic compartment is fixedly connected to the top of the connecting plate through a support rod, and a first hydraulic rod and a second hydraulic rod are slidingly connected to the inner surface of the hydraulic compartment, and the second hydraulic rod is movably penetrated through the top of the connecting plate, and the lower end of the second hydraulic rod is fixedly connected to a push plate.

[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 chamber.

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

[0013] The benefits of this application are:

[0014] (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 to facilitate the raw material proportioning. At the same time, the rising of the driving component also drives the extrusion plate to squeeze and crush the raw materials to reduce the particle size of the raw materials, which has the effect of facilitating more accurate proportioning.

[0015] (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, thereby grinding the raw material by moving the grinding plate up and down while the extrusion plate is pressed against the raw material, which has the effect of enhancing the extrusion and crushing effect.

[0016] (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 making the crushed raw materials fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0020] Figure 3 It is a bottom view of the cross-sectional structure of the present invention;

[0021] Figure 4 It is a right sectional view of the overall structure of the present invention;

[0022] Figure 5 The present invention Figure 1 A schematic diagram of the structure at center A;

[0023] Figure 6 The present invention Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0024] Figure 7 The present invention Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0025] Figure 8 The present invention Figure 4 Enlarged schematic diagram of the structure at point D in the middle.

[0026] In the above figure,

[0027] 1. Feeding device; 2. Baffle; 3. Rotating shaft; 4. Extrusion plate; 5. Drive assembly; 501. Support plate; 502. Electric push rod; 503. Rack; 504. Gear; 505. Push block; 506. Ejector block; 507. Slider; 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, support rod; 803, hydraulic warehouse; 804, first hydraulic rod; 805, second hydraulic rod; 806, push plate; 807, top plate; 808, second spring; 9, guide beam. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, 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, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0029] 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 to describe the embodiments of the present application here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes 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 devices.

[0030] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0031] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this 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

[0034] See also Figures 1-8, this embodiment provides a raw material proportioning device for polyester film production, including a feeding device 1, which is specifically a square-mouthed warehouse body with open upper and lower ends. A baffle 2 is provided on the inner surface of the feeding device 1, and the number of the baffles 2 is two. Grooves are provided on the left and right sides of the inner surface of the feeding device 1 for placing the baffles 2, so as to improve the sealing performance of the baffles 2. The baffles 2 are fixedly connected to the front and back sides with rotating shafts 3. Each baffle 2 is provided with two rotating shafts 3. The rotating shaft 3 passes through and is rotatably connected to the inner surface of the feeding device 1. A bearing is provided between the rotating shaft 3 and the feeding device 1. An extrusion plate 4 is provided above the baffle 2. A driving component 5 is provided on the outer surface of the feeding device 1. The driving component 5 includes a support plate 501. The support plate 501 is connected to the feeding device 1. The front of the material device 1 is fixedly connected, and an electric push rod 502 is fixedly connected to the top of the support plate 501. A rack 503 is fixedly connected to the upper end of the electric push rod 502. Teeth are provided on the left and right sides of the rack 503. The teeth are only provided at the lower half of the rack 503. Gears 504 are provided 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 provided on the left above each pushing block 505. On the two right sides, an inclined surface adapted to the pushing block 505 is provided below the top block 506, and a slider 507 is fixedly connected to the rear of the top block 506. A slide groove 508 is provided on the front of the feeding device 1, and 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. 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 of the extrusion plate 4, and the rear end of the rotating shaft 3 is fixedly connected It is connected to a rotating rod 511, and a connecting rod 512 is fixedly connected to the bottom of the rotating rod 511, and a counterweight 513 is fixedly connected to the bottom of 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 assemblies 5, and the two groups of drive assemblies 5 are respectively arranged on the front and back sides of the feeding device 1. The drive assembly 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 pushing block 505. There are two extrusion plates 4, and a groove is provided on the extrusion plate 4. The groove is provided on the opposite side of the two extrusion plates 4.Baffles 6 are fixedly connected to the left and right sides of the two extrusion plates 4. Each extrusion plate 4 is provided with a shallow groove for accommodating the baffle 6 of the other extrusion plate 4. The baffles 6 on the two extrusion plates 4 are arranged in an offset manner. The baffles 6 and the inner surface of the distributing device 1 are movable and penetrate. A guide beam 9 is fixedly connected to the inner surface of the distributing device 1. The guide beam 9 has an inclined surface above it, which is used to guide the raw materials entering the distributing device 1 so that they fall into the space between the extrusion plates 4 and the inner wall of the distributing device 1.

[0035] When the above-mentioned equipment is used, the raw materials for polyester film production 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 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. It will first drive the pushing block 505 to rise. As the pushing block 505 rises, it will push the top blocks 506 on both sides to the sides, thereby driving the slider 507 in the slide 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, thereby squeezing and crushing 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. 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

[0036] 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, the lifting block 701 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. 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. Under normal conditions, the first spring 702 will apply elastic force to make the lifting block 701 rise on the inner surface of the extrusion plate 4. 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 a hemispherical protrusion is provided on the grinding plate 703. A push bar 704 is fixedly connected to the top of the lifting block 701. The pushing bar 704 is movably penetrated by the top of the inner surface of the extrusion plate 4, and an opening for passing the pushing bar 704 is provided on the extrusion plate 4. The upper end of the pushing bar 704 is fixedly connected to a sliding column 705, 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 feeding 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 feeding device 1. A guide tooth 707 is fixedly connected to the bottom of the guide bar 706, and the guide tooth 707 is triangular in shape. The guide tooth 707 is slidably connected to the top of the sliding column 705.

[0037] When the above-mentioned equipment is in use, when the extrusion plate 4 squeezes the raw materials in the feeding device 1, the movement of the extrusion plate 4 will also drive the pushing bar 704 to move, and the movement of the pushing bar 704 will drive the sliding column 705 to slide on the guide tooth 707 below the guide bar 706. The elastic force applied to the lifting block 701 by the first spring 702 will drive the pushing bar 704 so that the sliding column 705 is always in contact with the guide tooth 707. At this time, as the extrusion plate 4 moves, the sliding column 705 will slide on the guide tooth 707, and then drive the pushing bar 704 to rise and fall repeatedly. The repeated rise and fall of the pushing 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 to press against the raw material by the extrusion plate 4, the grinding plate 703 can move up and down to grind the extruded raw material, thereby enhancing the crushing effect of the raw material. Example

[0038] See also Figure 2-Figure 6, a pushing assembly 8 is provided above the extrusion plate 4, and the pushing assembly 8 includes a connecting plate 801. Two connecting plates 801 are provided on each extrusion plate 4. The connecting plate 801 is fixedly connected to the top of the extrusion plate 4. A hydraulic tank 803 is fixedly connected to the top of the connecting plate 801 through a support rod 802. The hydraulic tank 803 has three bending parts. Liquid is provided in the hydraulic tank 803. The inner surface of the hydraulic tank 803 is slidably connected to the first hydraulic rod 804 and the second hydraulic rod 805. The first hydraulic rod 804 and the second hydraulic rod 805 are both provided with pistons that are slidably connected to the inner surface of the hydraulic tank 803. The second hydraulic rod 805 is movable through the top of the connecting plate 801. A A through hole is used to pass the second hydraulic rod 805, and the lower end of the second hydraulic rod 805 is fixedly connected to a push plate 806. There are two push plates 806, and each push plate 806 is connected to two second hydraulic rods 805. The number of support rods 802, hydraulic tank 803, first hydraulic rod 804 and second hydraulic rod 805 is four. The pushing assembly 8 also includes a top plate 807, which is circular in shape. 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 tank 803. 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 tank 803 facing the top plate 807.

[0039] When the above-mentioned equipment is used, when the extrusion plate 4 is squeezed toward the inner wall of the feeding device 1, it crushes the raw materials and squeezes them together. As the extrusion plate 4 moves toward the inner wall of the feeding device 1, the top plate 807 will first contact the inner wall of the feeding 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 chamber 803. The first hydraulic rod 804 will push the liquid in the hydraulic chamber 803, and then drive the second hydraulic rod 805 to extend from the bottom of the hydraulic chamber 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 feeding device 1, so as to facilitate unloading.

[0040] 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. A raw material proportioning device for polyester film production, comprising a material dispensing device, characterized in that: The inner surface of the material dispensing device is provided with a baffle, and the front and back surfaces of the baffle are fixedly connected to a rotating shaft, and the rotating shaft penetrates and is rotatably connected to the inner surface of the material dispensing device. An extrusion plate is provided above the baffle, and a driving assembly is provided on the outer surface of the material dispensing device. The driving assembly includes a support plate, and 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, and 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 fixedly connected to the outer surface of the rotating shaft. The gears are adapted to the rack. The upper end of the rack is fixedly connected to a pushing block, the upper end of the pushing block is slidably connected to a top block, the rear end of the top block is fixedly connected to a sliding block, a slide groove is provided on the front side of the feeding device, the slide block is slidably connected to the inner surface of the slide groove, a third spring is elastically connected between the slide block and the inner surface of the slide groove, the slide block is fixedly connected to the front side of the extrusion plate, the rear end of the rotating shaft is fixedly connected to a rotating rod, the lower end of the rotating rod is fixedly connected to a connecting rod, and the lower end of the connecting rod is fixedly connected to a counterweight block. The number of the driving components is two groups, and the two groups of driving components are respectively arranged on the front and back sides of the feeding device; 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 the end of the lifting block away from the inner surface of the extrusion plate is fixedly connected to the grinding plate, and a push bar is fixedly connected to the top of the lifting block, and the push bar movably penetrates the top of the inner surface of the extrusion plate, and the upper end of the push bar is fixedly connected to a sliding column, and the grinding assembly also includes a guide bar, which is fixedly connected to the inner surface of the feeding device, and a guide tooth is fixedly connected to the bottom of the guide bar, and the guide tooth is slidably connected to the top of the sliding column.

2. A raw material proportioning device for polyester film production according to claim 1, characterized in that: 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.

3. A raw material proportioning device for polyester film production according to claim 1, characterized in that: 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.

4. A raw material proportioning device for polyester film production according to claim 1, characterized in that: A pushing assembly is provided above the extrusion plate, and the pushing assembly includes a connecting plate, which is fixedly connected to the top of the extrusion plate. A hydraulic warehouse is fixedly connected to the top of the connecting plate through a support rod. The inner surface of the hydraulic warehouse is slidably connected to a first hydraulic rod and a second hydraulic rod. The second hydraulic rod movably penetrates the top of the connecting plate, and the lower end of the second hydraulic rod is fixedly connected to a push plate.

5. A raw material proportioning device for polyester film production according to claim 4, characterized in that: The pushing assembly further comprises a top plate, which 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 chamber.

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

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