Plastic film embryo water bath heating rapid film penetrating device

Abstract

The utility model discloses a kind of plastic film embryo water bath heating rapid membrane penetrating device.The device includes: heating box, multiple fixed roller, fixed frame, undercarriage, multiple moving roller, multiple lead link and lifting assembly;Multiple fixed roller rotationally connects in the heating cavity of heating box;The two shelves of fixed frame are located at the two sides of heating box and its upper end is higher than heating box;Undercarriage and two shelves are vertically slidingly connected by lead link, and multiple moving roller is fixedly connected undercarriage lower end;Driving member of lifting assembly connects undercarriage side, driving member drives undercarriage to move downwards, so that the height difference of moving roller and fixed roller changes, moving roller presses down film embryo to enter the heating cavity and wind on roller, so that heating box simultaneously heats longer film embryo.The utility model has the effect that fixed space heats film embryo of different lengths, heating performance is stable, production operation is safe.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold blank processing, and in particular to a plastic film blank water bath heating rapid film insertion device. Background Technology

[0002] Plastic film preforms often involve heating processes. The conventional heating process involves directly placing the preform into a water bath tank for heating. However, this method has several drawbacks: First, if the preform to be heated is too long, the size of the water bath needs to be extended accordingly, resulting in an excessively large space occupied by the equipment. Second, an excessively large water bath can also lead to a decrease in heat preservation performance, making it impossible to stably meet the heating requirements of the preform. Third, it is inconvenient for workers to place the preform into the water bath, and there is also a safety hazard of being scalded. Utility Model Content

[0003] To address one or more of the aforementioned problems, this utility model provides a rapid film-threading device for water bath heating of plastic film preforms.

[0004] According to one aspect of the present invention, a plastic film preform water bath heating rapid film-threading device includes: a heating box, multiple fixed rollers, a fixed frame, a lifting frame, multiple movable rollers, multiple guide rods, and a lifting assembly.

[0005] The heating box has an open heating chamber at the top;

[0006] Multiple parallel fixed rollers are rotatably connected inside the heating chamber, and the arrangement direction of the fixed rollers is perpendicular to the travel direction of the film preform;

[0007] The fixed frame includes two parallel vertical plate holders, which are located on opposite sides of the heating box and their upper ends are higher than the heating box.

[0008] The landing gear is located inside the two plate holders and directly above the heating chamber;

[0009] Multiple movable rollers are fixedly connected to the lower end of the landing gear, and the multiple movable rollers are parallel to the fixed rollers and located at the intervals between the multiple fixed rollers and directly above both sides;

[0010] Multiple guide rods are vertically installed, with their two ends connected to the inner sides of two plate frames respectively, and the middle one is vertically slidably connected to the sliding parts of the two opposite outer sides of the landing gear;

[0011] The lifting assembly is fixedly connected to the middle of a plate frame. The lifting assembly includes an active component that can move vertically up and down, and the active component is connected to one side of the landing gear.

[0012] When the lifting assembly is activated, the active component drives the landing gear to move downward, changing the height difference between the moving roller and the fixed roller. The moving roller presses the film preform into the heating chamber and wraps it around the roller, allowing the heating chamber to heat the longer film preform simultaneously.

[0013] In some embodiments, the lifting assembly includes a drive motor, a vertical screw, and a nut structure as the driving component. The drive motor is fixedly connected to the middle beam of a plate frame. The drive motor is connected to the lower end of the screw. The screw is rotatably connected to the upper inner side of the plate frame. The driving component is connected in the middle of the screw to form a lead screw and nut pair. The driving component is fixedly connected to the upper side of one side of the landing gear.

[0014] In some embodiments, the lifting assembly further includes first seated bearings at the upper and lower ends of the two disc rotatably connecting screws, the first seated bearings respectively fixing the upper crossbeam of the connecting plate frame and the middle position of the middle beam;

[0015] The drive motor is connected via a coupling or a hollow direct-drive screw to the lower end.

[0016] In some implementations, the drive motor is a servo motor or a stepper motor.

[0017] In some implementations, the guide rod is an optical axis, and the sliding element is a linear bearing that mates with the optical axis.

[0018] In some implementations, four guide rods are symmetrically fixed at the two transverse ends inside the two plate holders, and four sliding members are symmetrically fixed at the two transverse ends outside the landing gear.

[0019] In some implementations, second bearings are symmetrically mounted at both ends of the inner side of the two plate holders, and the upper and lower ends of the guide rod are rotatably connected to the second bearings.

[0020] In some embodiments, multiple fixed rollers are arranged symmetrically about the vertical center line of the heating chamber, with the fixed rollers on both sides having a greater height than the fixed roller in the middle position.

[0021] The heating box is also symmetrically equipped with top support rollers on both sides, and the film preform passes through the top support rollers on both sides as well as the alternating fixed rollers and moving rollers.

[0022] In some implementations, two top covers are also hinged to the lateral sides of the heating chamber.

[0023] In some embodiments, the heating box is a rectangular box arranged horizontally, the fixing frame is a rectangular frame spanning the top of the heating box, and two plate holders are symmetrically arranged on the longitudinal front and rear sides of the heating box and fixed by an adapter.

[0024] The rectangular top frame of the landing gear has fixed lugs at the four corners for fixing sliding parts, and several lower cantilever arms for fixing moving rollers are symmetrically arranged on the front and rear sides of the top frame. A third mounting seat for fixing the active part is located in the middle of the front side of the top frame.

[0025] The advantages of this water bath heating and rapid film-threading device for plastic film preforms are as follows: First, the device only requires the lifting assembly to be activated and the height difference between the moving roller and the fixed roller to heat film preforms of different lengths without changing the size of the heating chamber, thus maintaining the same overall space. Second, the heating chamber has a reasonable and fixed volume, and its heat preservation performance is well controlled, enabling the heating chamber to stably heat the film preforms. Third, the equipment is operated automatically by staff, who do not need to enter the heating chamber, making film preform installation more convenient and effectively avoiding the possibility of burns, thus ensuring safe production operations. Fourth, the equipment uses a guide shaft for vertical lifting and lowering, ensuring smooth and unobstructed overall lifting and preventing the moving roller from tilting, resulting in high positional accuracy of the moving roller and guaranteeing the accurate placement of the film preform. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a plastic film preform water bath heating rapid film-passing device according to one embodiment of the present invention;

[0027] Figure 2 for Figure 1 A cross-sectional schematic diagram of the membrane-penetrating device in its non-operating state;

[0028] Figure 3 for Figure 1 A cross-sectional schematic diagram showing the working state of the membrane-penetrating device.

[0029] Heating box 1, heating chamber 100, top cover 101, top support roller 11;

[0030] Fixed roller 2;

[0031] Fixed frame 3, plate holder 30, intermediate beam 300, upper crossbeam 301, longitudinal beam 31, adapter seat 32, first mounting seat 33, second mounting seat 34;

[0032] Landing gear 4, top frame 40, lower cantilever 41, fixed lug 42, third mounting base 43;

[0033] Moving roller 5;

[0034] Guide rod 6, second bearing 61;

[0035] Lifting assembly 7, active component 70, drive motor 71, vertical screw 72, first bearing with seat 73;

[0036] 8. Membrane embryo; 9. Sliding component. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0038] Figures 1 to 3 The figure schematically illustrates a water bath heating and rapid film-threading device for plastic film preforms according to one embodiment of the present invention. As shown in the figure, the water bath heating and rapid film-threading device for plastic film preforms includes: a heating box 1, multiple fixed rollers 2, a fixed frame 3, a lifting frame 4, multiple movable rollers 5, multiple guide rods 6, and a lifting assembly 7;

[0039] The heating box 1 is provided with a heating chamber 100 with an open top;

[0040] Multiple parallel fixed rollers 2 are rotatably connected within the heating chamber 100, and the arrangement direction of the fixed rollers 2 is perpendicular to the travel direction of the membrane preform 8. Preferably, the multiple fixed rollers 2 are symmetrically arranged about the vertical center line of the heating chamber 100, with the height of the fixed rollers 2 on both sides being greater than that of the fixed rollers 2 in the middle position. The lower ends of the middle fixed rollers 2 are coplanar and equidistant laterally. This roller arrangement can effectively ensure that the stress on the membrane preform is gentle and avoid damage to the membrane preform 8.

[0041] The fixed frame 3 includes two parallel vertical plate holders 30, which are located on opposite sides of the heating box 1 and their upper ends are higher than the heating box 1.

[0042] The landing gear 4 is located inside the two plate holders 30 and directly above the heating chamber 100;

[0043] Multiple movable rollers 5 are fixedly connected to the lower end of the landing gear 4. The multiple movable rollers 5 are parallel to the fixed rollers 2 and are located at the intervals of the multiple fixed rollers 2 and directly above both sides.

[0044] Multiple guide rods 6 are vertically arranged, with their two ends connected to the inner sides of two plate holders 30 respectively. A sliding member 9 is vertically slidably connected between the two opposite outer sides of the landing gear 4. Preferably, the guide rod 6 is an optical axis, and the sliding member 9 is a linear bearing that mates with the optical axis. More preferably, second seated bearings 61 are symmetrically installed at both ends of the inner sides of the two plate holders 30, and the upper and lower ends of the guide rod 6 are rotatably connected to the second seated bearings 61. This arrangement allows for smooth and unobstructed movement of the guide rod 6.

[0045] The lifting assembly 7 is fixedly connected to the middle of a plate frame 30. The lifting assembly 7 includes an active member 70 that can move vertically up and down. The active member 70 is connected to one side of the landing gear 4.

[0046] When the lifting assembly 7 is activated, the active component 70 drives the landing gear 4 to move downward, changing the height difference between the moving roller 5 and the fixed roller 2. The moving roller 5 presses down the film preform 8 into the heating chamber 100 and wraps it around the roller, so that the heating box 1 heats the longer film preform 8 at the same time. The film preform 8 passes through the alternately arranged fixed roller 2 and moving roller 5 in sequence.

[0047] This rapid film-threading device for water bath heating of plastic film preforms, through the arrangement of moving rollers 5 and fixed rollers 2, allows the film preform 8 in the fixed-size heating chamber 100 to be bent into longer lengths, achieving heating of longer film preforms. Its advantages are: First, the device only requires the lifting assembly 7 to be activated, adjusting the height difference between the moving rollers 5 and fixed rollers 2 to heat film preforms 8 of different lengths, without changing the size of the heating chamber 1, thus maintaining the same overall space footprint. Second, the heating chamber 8 has a reasonable and fixed volume, with good heat preservation performance, enabling stable heating of the film preform 8. Third, the equipment is operated automatically by staff, eliminating the need for personnel to enter the heating chamber 8, making film preform installation more convenient and effectively avoiding the possibility of burns, thus ensuring safe production operations. Fourth, the equipment uses a guide shaft 8 for vertical lifting and lowering of the frame 4, ensuring smooth and unobstructed overall lifting and preventing the moving rollers 5 from tilting, resulting in high positional accuracy of the moving rollers 5 and guaranteeing the accurate placement of the film preform 8.

[0048] Furthermore, the lifting assembly 7 includes a drive motor 71, a vertical screw 72, and a nut-structured active component 70. The drive motor 71 is fixedly connected to the lower end of the intermediate beam 300 of a frame 30. The drive motor 71 is connected to the lower end of the screw 72, which is rotatably connected to the upper inner side of the frame 30. The active component 70 is connected in the middle of the screw 72 to form a screw-nut pair. The active component 70 is fixedly connected to the upper part of one side of the landing gear 4. Preferably, the lifting assembly 7 also includes two discs rotatably connecting the upper and lower ends of the screw 72 to first seated bearings 73. The first seated bearings 73 are respectively fixedly connected to the middle of the upper crossbeam 301 and the middle position of the intermediate beam 300 of the frame 30. The drive motor 71 is connected to the lower end of the screw 72 through a coupling; or the drive motor 71 is a hollow shaft structure, with the lower end of the screw 72 directly connected to the drive motor 71. Preferably, the drive motor 71 is a servo motor or a stepper motor. Its beneficial effects are: this setting can ensure better vertical lifting accuracy, ensure the positional accuracy of membrane preform 8, avoid excessive stretching and damage to membrane preform 8, and achieve good, efficient and rapid heating.

[0049] Preferably, the guide rod 6 can be replaced by a linear slide rail instead of the optical axis, and the slider 9 can be replaced by a slider that cooperates with the linear slide rail instead of the linear bearing.

[0050] Furthermore, four guide rods 6 are symmetrically fixed at both ends of the inner side of the two plate holders 30, and four sliding parts 9 are symmetrically fixed at both ends of the outer side of the landing gear 4. The advantages of this arrangement are: it ensures good guiding accuracy, avoids left and right tilting, and has a compact structure with a small overall size.

[0051] Furthermore, the heating box 1 is symmetrically provided with top support rollers 11 on both sides of the transverse direction, and the film preform 8 is connected by the top support rollers 11 on both sides and the alternately arranged fixed rollers 2 and movable rollers 5. Preferably, the fixed rollers 2, movable rollers 5 and top support rollers 11 each include a hollow roller body, two bearing discs and a shaft body, and the two sides of the hollow roller body are rotatably connected to the two end shafts on both sides through the two bearing discs, or the two sides of the hollow roller body are rotatably connected to the two ends of the central shaft through the two bearing discs.

[0052] At least one end of the fixed roller 2 is fixedly connected to the inner wall of the heating chamber 100;

[0053] The two ends of the movable roller 5 are fixedly connected to the two lower cantilever arms 41 of the landing gear 4;

[0054] The top support roller 11 is fixedly connected to the brackets on both sides of the heating box 1 laterally. Its beneficial effect is that this arrangement ensures smooth movement of the film preform.

[0055] Furthermore, two upper covers 101 are hinged to the lateral sides of the heating chamber 1. Pulling the handles of the upper covers 101 allows the two upper covers 101 to rotate outward to open the heating chamber 100 or rotate inward to close the heating chamber 100. The beneficial effect is that when not in operation, the upper covers 101 effectively protect the internal equipment.

[0056] Furthermore, heating box 1 is a rectangular box arranged horizontally.

[0057] The fixed frame 3 is a rectangular frame formed by the upper crossbeams 301 of the two frame pieces 30 and several longitudinal beams 31.

[0058] The frame 30 is a vertical frame formed by two upright legs with the upper ends of the upper crossbeam 301 fixedly connected and the middle beam 300 fixedly connected in the middle. The upper crossbeam 301 and the middle beam 300 are provided with first mounting seats 33 for installing second bearing 61 at the four corners, and a second mounting seat 34 for installing first bearing 73 is provided in the middle between the two.

[0059] Two plate holders 30 are symmetrically arranged on the longitudinal front and rear sides of the heating box 1. The plate holders 30 and the heating box 1 are set independently or the two are fixedly connected by an adapter 32.

[0060] Preferably, the landing gear 4 includes a rectangular top frame 40, with fixed lugs 42 at its four corners. Each fixed lug 42 is fixedly connected to a sliding member 9. Several lower cantilever arms 41 for fixing the moving rollers 5 are symmetrically arranged on the front and rear sides of the top frame 40. A third mounting seat 43 is located in the middle of the front side of the top frame 40, and the third mounting seat 43 is fixedly connected to the driving member 70. Its advantages are: the structure is rationally arranged, which is beneficial for the vertical lifting of the equipment to change the heating length of the membrane preform 8.

[0061] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A plastic film embryo water bath heating rapid film penetrating device, characterized in that, Includes: heating box (1), multiple fixed rollers (2), fixed frame (3), landing gear (4), multiple movable rollers (5), multiple guide rods (6), and lifting assembly (7); The heating box (1) is provided with an open heating chamber (100); Multiple parallel fixed rollers (2) are rotatably connected in the heating chamber (100), and the arrangement direction of the fixed rollers (2) is perpendicular to the travel direction of the film preform (8); The fixed frame (3) includes two parallel vertical plate holders (30), which are located on opposite sides of the heating box (1) and their upper ends are higher than the heating box (1); The landing gear (4) is located inside the two plate frames (30) and directly above the heating chamber (100); Multiple movable rollers (5) are fixedly connected to the lower end of the landing gear (4). The multiple movable rollers (5) are parallel to the fixed rollers (2) and located at the intervals between the multiple fixed rollers (2) and directly above both sides. Multiple guide rods (6) are vertically arranged, with their two ends connected to the inner sides of two plate frames (30) respectively, and the middle of them is vertically slidably connected to the sliding parts (9) on the two opposite outer sides of the landing gear (4); The lifting assembly (7) is fixedly connected to the middle of a plate frame (30). The lifting assembly (7) includes an active component (70) capable of vertical lifting and lowering, and the active component (70) is connected to one side of the landing gear (4). The lifting assembly (7) is activated, and the active component (70) drives the landing gear (4) to move downward, changing the height difference between the moving roller (5) and the fixed roller (2). The moving roller (5) presses down the film preform (8) into the heating chamber (100) and wraps around the roller, so that the heating box (1) heats the longer film preform (8) at the same time.

2. The plastic film-taped water bath heating rapid membrane penetration device according to claim 1, characterized in that, The lifting assembly (7) includes a drive motor (71), a vertical screw (72), and a nut structure active component (70). The drive motor (71) is fixedly connected to the middle beam (300) of a plate frame (30). The drive motor (71) is connected to the lower end of the screw (72). The screw (72) is rotatably connected to the upper inner side of the plate frame (30). The active component (70) is connected in the middle of the screw (72) to form a screw-nut pair. The active component (70) is fixedly connected to the upper side of one side of the landing gear (4).

3. The plastic film-taped water bath heating rapid membrane penetration device according to claim 2, characterized in that, The lifting assembly (7) also includes first seated bearings (73) at the upper and lower ends of the two rotating connecting screws (72), and the first seated bearings (73) are respectively fixed to the upper crossbeam (301) and the middle position of the middle beam (300) of the connecting plate frame (30); The drive motor (71) is connected to the lower end of the hollow direct-drive screw (72) via a coupling.

4. The plastic film-taped water bath heating rapid membrane penetration device according to claim 3, characterized in that, The drive motor (71) is a servo motor or a stepper motor.

5. The plastic film TFBH RPD of claim 1, wherein, The guide rod (6) is an optical axis, and the sliding member (9) is a linear bearing that cooperates with the optical axis.

6. The plastic film-taped water bath heating rapid membrane crossing device according to claim 5, characterized in that, The four guide rods (6) are symmetrically fixed at the two transverse ends inside the two plate holders (30), and the four sliding members (9) are symmetrically fixed at the two transverse ends outside the landing gear (4).

7. The plastic film-taped water bath heating rapid membrane crossing device according to claim 6, characterized in that, The two inner transverse ends of the two plate holders (30) are symmetrically installed with second bearings (61), and the upper and lower ends of the guide rod (6) are rotatably connected to the second bearings (61).

8. The plastic film-taped water bath heating rapid membrane crossing device according to claim 1, characterized in that, The multiple fixed rollers (2) are arranged symmetrically about the vertical center line of the heating chamber (100), and the height of the fixed rollers (2) on both sides is greater than that of the fixed roller (2) in the middle position. The heating box (1) is also symmetrically provided with top support rollers (11) on both sides of the transverse direction. The film preform (8) passes through the top support rollers (11) on both sides and the fixed rollers (2) and the moving rollers (5) arranged alternately.

9. The plastic film-taped water bath heating rapid membrane crossing device according to claim 1, characterized in that, The heating box (1) is also hinged to two top covers (101) on both sides.

10. The plastic film-taped water bath heating rapid membrane penetration device according to any one of claims 1 to 9, characterized in that, The heating box (1) is a rectangular box arranged horizontally, and the fixed frame (3) is a rectangular frame spanning the heating box (1). The two plate holders (30) are symmetrically arranged on the longitudinal front and rear sides of the heating box (1) and fixed by the adapter (32). The landing gear (4) has a rectangular top frame (40) with fixed lugs (42) for fixing sliding parts (9) at the four corners. The top frame (40) has several lower cantilever arms (41) for fixing moving rollers (5) symmetrically arranged on the front and rear sides. The top frame (40) has a third mounting seat (43) for fixing the active part (70) in the middle of the front side.

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