Casting machine with cast film pre-flattening mechanism

Abstract

The present invention relates to the technical field of cast film equipment, specifically to a cast film pre-flattening mechanism, comprising a bottom plate, the bottom plate being a passing area of ​​the film, the side walls of the frame being provided with supporting feet, the bottom ends of the supporting feet being provided on the bottom plate, the supporting feet being symmetrically located on both sides of the passing area of ​​the film, the number of the guiding mechanisms being two, the two ends of the screw being respectively located on the two guiding mechanisms, the two ends of the bracket being rotatably connected with the two ends of the screw, the two first gears being respectively located at the two ends of the screw, and the auxiliary rod and the screw being provided on the bracket in a parallel state, an electric push rod driving mechanism and a pressing mechanism being adopted to reciprocate along the extension direction of the electric push rod, and at the same time, the pressing mechanism, in cooperation with the driving mechanism, can enable the pressing plate to perform regular reciprocating motion in both the extension direction of the screw and the extension direction of the electric push rod, thereby pre-flattening the film and making the surface of the film smoother.

Description

Technical Field

[0001] The invention relates to the technical field of casting machine equipment, in particular to a casting machine with a casting film pre-flattening mechanism. Background Art

[0002] Casting machine refers to the special equipment for making cast film. It adopts high-precision electronic ceramic casting machine and uses alumina as the main raw material of ceramic casting. First, the crushed powder is mixed with binder, plasticizer, dispersant and solvent to make slurry with a certain viscosity. The slurry flows down from the hopper and is scraped and coated on the special base belt with a certain thickness by a scraper. After drying and curing, it is peeled off from the top to become a film of green belt. It has the advantages of low cost, high quality, no toxicity and simple production process.

[0003] In the prior art, the film produced in the casting part lacks a pre-flattening mechanism, resulting in the surface of the produced film not being flat enough, so that the film cannot be flattened at the winding part after cutting, affecting its use effect. Summary of the invention

[0004] The object of the present invention is to provide a casting machine with a casting film pre-flattening mechanism to solve the problem in the prior art that the pre-flattening mechanism is lacking, the surface of the produced film is not smooth enough, and its use effect is affected.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a casting machine with a casting film pre-flattening mechanism, comprising: a bottom plate, a frame, a guide mechanism, a screw, a bracket, a first gear, an auxiliary rod, a driving mechanism, a pressing mechanism, a first rack, and an electric push rod, wherein the bottom plate is a passing area of ​​the film, and the side walls of the frame are provided with legs, the bottom ends of the legs are provided on the bottom plate, and the legs are symmetrically located on both sides of the passing area of ​​the film, the number of the guide mechanisms is two, and the two guide mechanisms are mirror-imaged on the inner wall surface of the frame and are located on the same side of the frame as the legs, and the two ends of the screw are respectively located On the two guide mechanisms, the cross-sectional shape of the bracket is a concave structure, the two ends of the bracket are rotatably connected to the two ends of the screw, the number of the first gears is two, the two first gears are respectively located at the two ends of the screw, and are located on the outside of the bracket, the auxiliary rod and the screw are arranged on the bracket in a parallel state, the driving structure is installed on the screw and the auxiliary rod, the pressing mechanism is rotatably installed on the lower wall of the driving mechanism, the first rack is installed on the lower wall of the bracket, and is located between the driving mechanism and the pressing mechanism, the electric push rod is installed between the bracket and the frame, and the connections are all hinged.

[0006] Preferably, the position and state of the driving mechanism and the pressing mechanism can be changed by using a guiding mechanism, so as to achieve a flattening effect. The guiding mechanism comprises: a fixed plate, a first guide frame, a second guide frame, a second rack, a partition plate, a connecting plate, and a shift rod. The fixed plate is mounted on the side wall of the frame, the first guide frame is mounted on the fixed plate, the first guide frame is a rounded rectangular structure, the second guide frame is mounted on the first guide frame, the second guide frame is a rounded rectangular structure, there is a sliding relationship between the screw and the second guide frame, there are two second racks, and the two second racks are symmetrically mounted on the horizontal inner wall of the first guide frame, there is a meshing relationship between the first gear and the rack, the partition plate is located on the horizontal midline of the second guide frame, and is mounted on the fixed plate through a connecting plate, there is space between both ends of the partition plate and the second guide frame, and the space is larger than the diameter of the screw, and one end of the shift rod is hinged at the end of the partition plate away from the electric push rod.

[0007] Preferably, the distance between the two sides of the partition plate satisfies the movement of the screw rod, while ensuring the meshing relationship between the first gear and the first rack.

[0008] Preferably, the forward and backward displacement of the screw rod is coordinated with the use of a lever to change the moving position of the screw rod. A spring is provided at the hinge between the lever and the partition plate so that the lever rod can be moved without applying external force, and the movable end of the lever rod always abuts against the inner wall of the second guide frame.

[0009] Preferably, the driving mechanism can control the displacement of the pressing mechanism in the direction of the screw, and the driving mechanism includes: a first slider, a second slider, a third slider, and a connecting rod. The first slider is fixedly installed in the middle position of the screw, the number of the second slider is two, and they are symmetrically screwed on both ends of the screw, the number of the third slider is at least four, and the third slider is symmetrically sleeved between the first slider and the two second sliders. The number of the connecting rods is several, and the several connecting rods are hinged head to tail, and are hinged to the upper wall surfaces of the first slider, the second slider and the third slider in sequence.

[0010] Preferably, each two adjacent sliding blocks are connected by two connecting rods.

[0011] Preferably, the pressing mechanism presses and flattens the passing film, and the pressing mechanism includes: a shaft, a second gear, a pressing plate, an ear plate, a pressing roller, a pressing belt, and a coil spring. The top end of the shaft is installed on the lower wall of the driving mechanism, the second gear is installed on the shaft and meshes with the second gear, the pressing plate is installed on the bottom end of the shaft, and through grooves are respectively opened at both ends of the lower wall of the pressing plate. The number of the ear plates is two groups, and the two groups of ear plates are respectively installed on the upper wall of the pressing plate, and the positions corresponding to the through grooves, the number of the pressing rollers is two, and the two pressing rollers are rotatably installed on the two groups of ear plates, and the lowest point of the outer wall of the pressing roller is located below the lower wall of the pressing plate, the pressing belt is sleeved on the outer walls of the two pressing rollers, and the coil spring is installed between one of the pressing rollers and the ear plate.

[0012] Preferably, the pressing mechanisms under the first slider are fixedly connected to each other, and the pressing mechanisms under the second slider and the third slider are rotatably connected to each other.

[0013] Preferably, the screw consists of a fixed section and a screw section, there are two screw sections, the two screw sections are symmetrically arranged on both sides of the fixed section, the screw section is a reciprocating screw, and the thread directions of the two screw sections are opposite, and the first sliding block is fixedly mounted on the fixed section.

[0014] The present invention provides a casting machine with a casting film pre-flattening mechanism, which has the following beneficial effects:

[0015] The present invention adopts an electric push rod driving mechanism and a pressing mechanism to reciprocate along the extension direction of the electric push rod. At the same time, the pressing mechanism, in cooperation with the driving mechanism, can make the pressing plate perform regular reciprocating motion in the extension direction of the screw rod and the extension direction of the electric push rod, thereby pre-flattening the film and making the surface of the film smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a first partial schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the guide mechanism of the present invention;

[0019] Figure 4 It is a second partial schematic diagram of the present invention;

[0020] Figure 5 It is a schematic diagram of the driving mechanism of the present invention;

[0021] Figure 6 It is a schematic diagram of the pressing mechanism of the present invention;

[0022] Figure 7 It is a side view of the pressing mechanism and the driving mechanism of the present invention;

[0023] Figure 8 It is a top view of the structure of the present invention.

[0024] In the figure: 1. bottom plate; 2. frame; 3. guide mechanism; 31. fixed plate; 32. first guide frame; 33. second guide frame; 34. second rack; 35. partition plate; 36. connecting plate; 37. lever; 4. screw; 41. fixed section; 42. screw section; 5. bracket; 6. first gear; 7. auxiliary rod; 8. driving mechanism; 81. first slider; 82. second slider; 83. third slider; 84. connecting rod; 9. pressing mechanism; 91. shaft; 92. second gear; 93. pressing plate; 94. ear plate; 95. pressure roller; 96. pressing belt; 97. coil spring; 10. first rack; 11. electric push rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-8 The present invention provides a technical solution: a casting machine with a casting film pre-flattening mechanism, comprising: a bottom plate 1, a frame 2, a guide mechanism 3, a screw 4, a bracket 5, a first gear 6, an auxiliary rod 7, a driving mechanism 8, a pressing mechanism 9, a first rack 10, and an electric push rod 11. The bottom plate 1 is a passing area of ​​the film, and the side wall of the frame 2 is provided with a support foot, the bottom end of the support foot is arranged on the bottom plate 1, and the support foot is symmetrically located on both sides of the film passing area. The number of the guide mechanisms 3 is two, and the two guide mechanisms 3 are mirror-imaged on the inner wall surface of the frame 2 and are located on the same side of the frame 2 as the support foot. The two ends of the screw 4 are respectively located at two On the guide mechanism 3, the cross-sectional shape of the bracket 5 is a concave structure, and the two ends of the bracket 5 are rotatably connected to the two ends of the screw 4. There are two first gears 6, and the two first gears 6 are respectively located at the two ends of the screw 4 and on the outside of the bracket 5. The auxiliary rod 7 is arranged on the bracket 5 in a parallel state with the screw 4. The driving structure is installed on the screw 4 and the auxiliary rod 7. The pressing mechanism 9 is rotatably installed on the lower wall of the driving mechanism 8. The first rack 10 is installed on the lower wall of the bracket 5 and is located between the driving mechanism 8 and the pressing mechanism 9. The electric push rod 11 is installed between the bracket 5 and the frame 2, and the connection points are all hinged.

[0027] More specifically, the guide mechanism 3 includes: a fixed plate 31, a first guide frame 32, a second guide frame 33, a second rack 34, a partition plate 35, a connecting plate 36, and a lever 37. The fixed plate 31 is mounted on the side wall of the frame 2, the first guide frame 32 is mounted on the fixed plate 31, the first guide frame 32 is a rounded rectangular structure, the second guide frame 33 is mounted on the first guide frame 32, the second guide frame 33 is a rounded rectangular structure, the screw 4 and the second guide frame 33 are in a sliding relationship, the outer wall of the screw 4 is provided with a bearing to reduce the friction of sliding, and the second rack 34 is provided with a bearing to reduce the friction of sliding. There are two racks 34, and the two second racks 34 are symmetrically mounted on the horizontal inner wall of the first guide frame 32. The first gear 6 is in meshing relationship with the rack. The partition plate 35 is located on the horizontal midline of the second guide frame 33 and is mounted on the fixed plate 31 through a connecting plate 36. There is space between both ends of the partition plate 35 and the second guide frame 33, and the space is larger than the diameter of the screw 4. One end of the lever 37 is hinged at the end of the partition plate 35 away from the electric push rod 11. When the screw 4 is located at the end of the partition plate 35 away from the lever 37, the screw 4 can move up and down in the space.

[0028] In this embodiment, the distance between the two sides of the partition plate 35 is sufficient for the movement of the screw rod 4 , while ensuring the meshing relationship between the first gear 6 and the first rack 10 .

[0029] In this embodiment, a spring is provided at the hinge between the lever 37 and the partition plate 35 so that the movable end of the lever 37 always abuts against the inner wall of the second guide frame 33 when no external force is applied.

[0030] More specifically, the driving mechanism 8 includes: a first slider 81, a second slider 82, a third slider 83, and a connecting rod 84. The first slider 81 is fixedly installed in the middle position of the screw 4. There are two second sliders 82, which are symmetrically screwed on both ends of the screw 4. There are at least four third sliders 83, and at least four third sliders 83 are symmetrically sleeved between the first slider 81 and the two second sliders 82. There are several connecting rods 84, and the several connecting rods 84 are hinged at the head and tail, and are hinged on the upper wall surfaces of the first slider 81, the second slider 82 and the third slider 83 in sequence.

[0031] In this embodiment, every two adjacent sliders are connected by two connecting rods 84 , so that the third slider 83 located between the first slider 81 and the second slider 82 is displaced equidistantly along with the second slider 82 under the action of the connecting rods 84 .

[0032] More specifically, the pressing mechanism 9 includes: a shaft 91, a second gear 92, a pressing plate 93, an ear plate 94, a pressure roller 95, a pressing belt 96, and a coil spring 97. The top end of the shaft 91 is mounted on the lower wall of the driving mechanism 8, the second gear 92 is mounted on the shaft 91 and meshes with the second gear 92, the pressing plate 93 is mounted on the bottom end of the shaft 91, and through grooves are respectively provided at both ends of the lower wall of the pressing plate 93. There are two groups of ear plates 94, and the two groups of ear plates 94 are respectively mounted on the upper wall of the pressing plate 93 and at positions corresponding to the through grooves. There are two pressure rollers 95, and the two pressure rollers 95 are rotatably mounted on the two groups of ear plates 94, and the lowest point of the outer wall of the pressure roller 95 is located below the lower wall of the pressing plate 93. The pressing belt 96 is sleeved on the outer walls of the two pressure rollers 95, and the coil spring 97 is installed between one of the pressure rollers 95 and the ear plate 94.

[0033] In this embodiment, the pressing mechanisms 9 under the first slider 81 are fixedly connected, and the pressing mechanisms 9 under the second slider 82 and the third slider 83 are rotatably connected.

[0034] More specifically, the screw 4 is composed of a fixed section 41 and screw 4 sections. There are two screw 4 sections, which are symmetrically arranged on both sides of the fixed section 41. The screw 4 sections are reciprocating screws 4, and the thread directions of the two screw 4 sections are opposite. The first slider 81 is fixedly installed on the fixed section 41, so that the second sliders 82 located on both sides of the first slider 81 can perform synchronous reciprocating motion during the unidirectional rotation of the screw 4.

[0035] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0036] The frame 2 is fixed at the position of the outlet of the casting part, and the film is passed between the frame 2 and the bottom plate 1. During the movement of the film, the electric push rod 11 is controlled to drive the bracket 5. When the output end of the electric push rod 11 is in a retracted state, the two ends of the screw 4 are located at one end of the first guide frame 32 close to the electric push rod 11 and below the partition plate 35. At the same time, the first slider 81, the second slider 82 and the third slider 83 are in a parallel state and fit tightly. When the output end of the electric push rod 11 moves outward, the screw 4 will move below the partition plate 35. At this time, the first gear 6 and the third gear 83 located below are in a parallel state. The first rack 10 is meshed, the screw 4 is rotated, the second sliders 82 on both sides of the screw 4 are displaced to both sides, and the third slider 83 between the first slider 81 and the second slider 82 is displaced equidistantly under the action of the connecting rod 84. Due to the meshing relationship between the second gear 92 and the second rack 34, the second slider 82 and the third slider 83 on both sides of the first slider 81 are slightly deflected to the outside of the forward direction, and the pressing belt 96 will flatten the film in two directions. At the same time, the rolling pressing belt 96 can avoid the large friction between the pressing belt 96 and the film, which is conducive to the film. When the screw rod 4 moves from one end of the second guide mechanism 3 to the other end, the screw rod 4 pushes the lever 37 open and moves to the other side of the lever 37. At this time, the screw rod 4 is at the maximum displacement limit. The output end of the electric push rod 11 will shrink. After the screw rod 4 passes, the lever 37 still abuts against the inner wall of the second guide mechanism 3 and moves upward. When the screw rod 4 moves in the reverse direction, under the action of the lever 37, the screw 4 will move to the top of the partition plate 35. At this time, the first gear 6 and the position The screw rod 4 will mesh with the first rack 10 at the top, and the screw rod 4 will continue to rotate. The second slider 82 will move in the direction close to the first slider 81, and the third slider 83 will move synchronously, and the second slider 82 and the third slider 83 will rotate to a parallel state. When the screw rod 4 moves to one end of the second guide frame 33 close to the electric push rod 11, it will freely fall to the bottom of the partition plate 35. At the same time, the first slider 81, the second slider 82 and the third slider 83 will be reset to a parallel state and fit tightly, completing a cycle of flattening. The reciprocating motion of the electric push rod 11 can realize continuous flattening operation.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting machine with a casting film pre-flattening mechanism, characterized in that: include: A bottom plate (1), wherein the bottom plate (1) has an area through which the film passes; A frame (2), wherein the side walls of the frame (2) are provided with supporting feet, the bottom ends of the supporting feet are arranged on the bottom plate (1), and the supporting feet are symmetrically located on both sides of the area where the film passes; A guide mechanism (3), wherein the number of the guide mechanisms (3) is two, and the two guide mechanisms (3) are arranged in a mirror image on the inner wall surface of the frame (2), and are located on the same side of the frame (2) as the support foot; A screw rod (4), wherein two ends of the screw rod (4) are respectively located on two guide mechanisms (3); A bracket (5), wherein the cross-sectional shape of the bracket (5) is a concave structure, and the two ends of the bracket (5) are rotationally connected to the two ends of the screw rod (4); A first gear (6), wherein the number of the first gears (6) is two, and the two first gears (6) are respectively located at two ends of the screw rod (4) and outside the bracket (5); an auxiliary rod (7), the auxiliary rod (7) being arranged on the bracket (5) in a parallel state with the screw rod (4); A driving mechanism (8), wherein the driving mechanism (8) is mounted on the screw rod (4) and the auxiliary rod (7); A pressing mechanism (9), wherein the pressing mechanism (9) is rotatably mounted on a lower wall surface of the driving mechanism (8); A first rack (10), the first rack (10) being mounted on the lower wall surface of the bracket (5) and located between the driving mechanism (8) and the pressing mechanism (9); An electric push rod (11), wherein the electric push rod (11) is installed between the bracket (5) and the frame (2), and the connection parts are all hinged; The guiding mechanism (3) comprises: A fixing plate (31), wherein the fixing plate (31) is mounted on a side wall of the frame (2); A first guide frame (32), the first guide frame (32) being mounted on the fixed plate (31), the first guide frame (32) being a rounded rectangular structure; a second guide frame (33), the second guide frame (33) being mounted on the first guide frame (32), the second guide frame (33) being a rounded rectangular structure, and a sliding relationship being established between the screw rod (4) and the second guide frame (33); a second rack (34), wherein the number of the second racks (34) is two, the two second racks (34) are symmetrically mounted on the horizontal inner wall of the first guide frame (32), and the first gear (6) is in meshing relationship with the racks; a partition plate (35), the partition plate (35) being located on the horizontal midline of the second guide frame (33) and being mounted on the fixed plate (31) via a connecting plate (36), with a space being provided between both ends of the partition plate (35) and the second guide frame (33), and the space being larger than the diameter of the screw rod (4); A lever (37), one end of the lever (37) being hinged to an end of the partition plate (35) away from the electric push rod (11); The driving mechanism (8) comprises: A first sliding block (81), the first sliding block (81) being fixedly mounted at a middle position of the screw rod (4); Second sliding blocks (82), the number of the second sliding blocks (82) being two and being symmetrically threadedly connected to both ends of the screw rod (4); A third slider (83), the number of the third sliders (83) being at least four, and the third sliders (83) being symmetrically sleeved between the first slider (81) and the two second sliders (82); Connecting rods (84), the number of the connecting rods (84) is several, the several connecting rods (84) are hinged end to end, and are hinged in sequence on the upper wall surfaces of the first slider (81), the second slider (82), and the third slider (83); each adjacent first slider (81), second slider (82), and third slider (83) are connected by two connecting rods (84); The pressing mechanism (9) comprises: A shaft rod (91), the top end of the shaft rod (91) being mounted on a lower wall surface of the driving mechanism (8); a second gear (92), the second gear (92) being mounted on the shaft (91) and meshing with the second gear (92); A pressing plate (93), the pressing plate (93) being mounted on the bottom end of the shaft (91), and through grooves are respectively formed at both ends of the lower wall of the pressing plate (93); Ear plates (94), the number of the ear plates (94) being two groups, and the two groups of ear plates (94) being respectively mounted on the upper wall surface of the pressing plate (93) at positions corresponding to the through slots; A pressure roller (95), wherein the number of the pressure rollers (95) is two, and the two pressure rollers (95) are rotatably mounted on two sets of ear plates (94) respectively, and the lowest point of the outer wall of the pressure roller (95) is located below the lower wall surface of the pressing plate (93); A pressing belt (96), the pressing belt (96) being sleeved on the outer walls of the two pressing rollers (95); A coil spring (97) is installed between one of the pressure rollers (95) and the ear plate (94).

2. A casting machine with a casting film pre-flattening mechanism according to claim 1, characterized in that: The distance between the two sides of the partition plate (35) is sufficient for the movement of the screw rod (4), while ensuring the meshing relationship between the first gear (6) and the first rack (10).

3. A casting machine with a casting film pre-flattening mechanism according to claim 2, characterized in that: A spring is provided at the hinged joint between the lever (37) and the partition plate (35), so that the movable end of the lever (37) always abuts against the inner wall of the second guide frame (33) when no external force is applied to the lever (37).

4. A casting machine with a casting film pre-flattening mechanism according to claim 3, characterized in that: The pressing mechanisms (9) located under the first slider (81) are fixedly connected to each other, and the pressing mechanisms (9) located under the second slider (82) and the third slider (83) are rotatably connected to each other.

5. A casting machine with a casting film pre-flattening mechanism according to claim 4, characterized in that: The screw rod (4) is composed of a fixed section (41) and a screw section (42). There are two screw sections (42), which are symmetrically arranged on both sides of the fixed section (41). The screw section (42) is a reciprocating screw rod, and the screw threads of the two screw sections (42) are in opposite directions. The first sliding block (81) is fixedly mounted on the fixed section (41).

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