Gas cylinder rotational molding machine

Abstract

The utility model relates to the technical field of rotary molding, and discloses a gas cylinder rotational molding machine which comprises a rotary platform and a cooling mechanism arranged below the rotary platform, and further comprises a distance adjusting clamping assembly and two axial displacement overturning plugging assemblies for plugging the two ends of a cylinder body mold, the distance adjusting clamping assemblies are distributed on the upper end face and the lower end face of the rotating platform, rotating clamping units are arranged on the sliding bases, and the distance between the two rotating clamping units is adjusted through sliding of the rails. According to the utility model, the sliding seat is matched with the rotary clamping unit, so that the bottle body mold connecting device is suitable for connecting and fixing bottle body molds with various lengths and diameters. The plugging mold can be replaced and detached by matching with the alignment mold tightening guider, the plugging mold and the bottle body mold are pre-tightened by matching with the elastic telescopic component, and the mold can be replaced more quickly when the diameter is not changed and the bottle body mold is shortened in the axial direction due to the split type design. The equipment is wide in application range and low in switching cost, and completely meets the processing and using requirements of factories.

Description

Technical Field

[0001] The utility model relates to the technical field of rotational molding, in particular to a gas cylinder rotational molding machine. Background Art

[0002] Plastic materials in the form of granules, powders or other solids are heated in the mold, and rotation is used to apply force to the plastic fluid formed by heating, so that the fluid flows and extends along the mold surface until it is evenly distributed, and then after solidification and cooling, a thin-walled workpiece is produced in the form of a wall. This method is often used in the preparation of bottles and bottle bodies. In order to meet market demand, a metal bottle mouth is set up on the basis of the plastic bottle body, making the bottle mouth more stable in use and connected to other parts. The addition of a bottle mouth mold complicates the overall structure of the mold, but the design of multiple specifications and different lengths of products requires different molds, and the complexity greatly increases the mold cost. Summary of the invention

[0003] The purpose of the utility model is to provide a gas cylinder rotational molding machine to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A gas cylinder rotational molding machine, comprising a rotating platform and a cooling mechanism arranged below the rotating platform, and also comprising a distance-adjusting clamping assembly and two axial displacement flipping sealing assemblies for sealing both ends of a bottle body mold;

[0006] The distance-adjusting clamping assembly is distributed on the upper and lower end surfaces of the rotating platform. The distance-adjusting clamping assembly is composed of two slides and a track for guiding the slides to slide. A rotating clamping unit is arranged on the slide. The two rotating clamping units adjust the distance between them by sliding on the track. The rotating clamping unit is detachably fixedly connected to the end of the bottle body mold.

[0007] The axial displacement flip plugging assembly is composed of a plugging mold, an axial translation platform, and a bottle mouth positioning module. The axial translation platform is slidably connected to the gear ring of the rotating clamping unit. The axial translation platform slides axially along the bottle body mold, and the axial translation platform and the gear ring of the rotating clamping unit rotate synchronously. The axial translation platform is rotatably connected to a positioning and tightening mold guide through a mold opening rotating frame. The positioning and tightening mold guide is slidably connected to the plugging mold through an elastic telescopic component. The plugging mold slides axially along the bottle body mold and seals the end surface of the bottle body mold.

[0008] The end of the plugging mold has a hole body, and the bottle mouth positioning module is arranged at the hole body plane of the plugging mold. The bottle mouth positioning module includes a radial heating clamping mold for radially clamping and heating the metal pipe mouth, and an axial plugging mold for axially moving along the bottle body mold to seal the metal pipe mouth.

[0009] A further solution: the rotating clamping unit comprises an annular fixing frame, the gear ring, and a fixing member, one end of the fixing member is fixedly connected to the gear ring, and the other end of the fixing member is fixedly connected to the end surface of the bottle body mold.

[0010] A further solution: the axial translation platform is an annular structure, the axial translation platform and the gear ring are slidably connected through linear bearings and shafts, and the distance between the axial translation platform and the rotary clamping unit is adjusted by a displacement driver.

[0011] A further solution: the side of the rotating platform is rotatably connected with a slip ring mechanism, and the slip ring mechanism corresponds to the position of the axial sealing mold. In the two stages before and after use, the rotation axis of the mold opening rotating frame is colinear with the rotation axis of the slip ring mechanism, and the end face of the alignment and tightening mold guide is fixedly connected with a coaxial flip cover bracket, and the coaxial flip cover bracket is provided with a hole for the sliding of the slip ring mechanism, and the slip ring mechanism is slidably connected to the coaxial flip cover bracket.

[0012] A further solution is that a plurality of holes are formed on the track, and the slide seat is fixedly connected to the track via a locking slider.

[0013] A further solution is that a tooth groove is provided on the track, a telescopic clamping block is provided on the slide seat, and the track and the slide seat are fixed by plugging and matching the telescopic clamping block with the tooth groove.

[0014] A further solution is that one of the slides is fixedly connected to the rotating platform, and the other slide is slidably connected to the track.

[0015] A further solution: the surface of the plugging mold has a ring plate and a hole plane, the outer diameter of the ring plate remains unchanged, and the outer contour of the hole plane remains unchanged.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention utilizes a slide seat in conjunction with a rotating clamping unit to form an adjustable detachable bottle body mold connection structure, which is suitable for connecting and fixing bottle body molds of various lengths and diameters. At the same time, the plugging mold and the bottle body mold are separated, and the plugging mold is controlled by an axial translation platform to cause relative displacement between the plugging mold and the bottle body mold, so that the demoulding bottle mouth gives way and the plugging mold is turned over without interference. In addition, the plugging mold can be replaced and disassembled in conjunction with the alignment and tightening mold guide, and the plugging mold and the bottle body mold can be pre-tightened in conjunction with the elastic telescopic component. The split design can complete mold replacement more quickly when the workpiece diameter remains unchanged and the axial direction is shortened. The equipment has a wide range of applications and low switching costs, and fully meets the needs of factory processing and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a three-dimensional schematic diagram of a gas cylinder rotational molding machine;

[0020] Figure 2 It is a schematic diagram of the main view of a gas cylinder rotational molding machine;

[0021] Figure 3 It is a side view schematic diagram of a gas cylinder rotational molding machine;

[0022] Figure 4 It is a three-dimensional schematic diagram of a plugging mold in a gas cylinder rotational molding machine;

[0023] In the figure: 1. rotating platform; 11. track; 12. slide seat; 13. rotating clamping unit; 14. slip ring mechanism; 2. bottle body mold; 3. plugging mold; 4. axial translation platform; 41. mold opening rotating frame; 42. alignment and tightening mold guide; 43. displacement driver; 44. coaxial flip cover bracket; 45. elastic telescopic component; 5. bottle mouth positioning module; 51. radial heating clamping mold; 52. axial plugging mold; 6. cooling mechanism. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 4 :

[0025] Basic Example:

[0026] In this embodiment, it includes a rotating platform 1 and a cooling mechanism 6 arranged below the rotating platform 1 , and also includes a distance-adjusting clamping component and two axial displacement flipping and blocking components for blocking the two ends of the bottle body mold 2 .

[0027] In this embodiment, the cooling mechanism 6 adopts air cooling to perform temperature reduction treatment before demoulding. The rotating platform 1 controls the closed mold composed of the bottle body mold 2 and the plugging mold 3 to rotate in the first axial direction through the driver.

[0028] In this embodiment, while the bottle body mold 2 and the plugging mold 3 rotate in a first axial direction through the rotating platform 1, the bottle body mold 2 and the plugging mold 3 are controlled to rotate in a second axial direction through the rotating clamping unit 13, and the second axial direction is perpendicular to the first axial direction.

[0029] In the connection embodiment of the bottle body mold, the distance-adjusting clamping assembly is distributed on the upper and lower end surfaces of the rotating platform 1, and the distance-adjusting clamping assembly consists of two slides 12 and a track 11 for slidingly guiding the slides 12. A rotating clamping unit 13 is arranged on the slide 12, and the two rotating clamping units 13 adjust the distance between them by sliding on the track 11. The rotating clamping unit 13 is detachably fixedly connected to the end of the bottle body mold 2.

[0030] In the connection embodiment of the bottle body mold, the track 11 is installed on the end surface of the rotating platform 1 to play a directional guiding role. The track 11 can be a raised slide rail or a grooved slide rail. The slide rail is equipped with a slider, and the slider is fixedly connected to the slide seat 12. The slide seat 12 plays the role of connecting the rotating clamping unit 13 and the track 11. Therefore, the slide seat 12 adopts a triangular support structure. The bottom of the slide seat 12 has a right angle side, and the right angle side is connected to the slider to achieve directional sliding on the track 11. The triangular support structure of the slide seat 12 is set.

[0031] In the connection embodiment of the bottle body mold, the rotating clamping unit 13 includes an annular fixing frame, a gear ring, and a fixed connecting member. One end of the fixed connecting member is fixedly connected to the gear ring, and the other end of the fixed connecting member is fixedly connected to the end face of the bottle body mold 2. The annular fixing frame is fixed to the triangular support frame of the slide seat 12 by welding. The gear ring is rotatably connected to the annular fixing frame through an annular rotating seat. The annular rotating seat is divided into an upper seat and a lower seat. The two seats are connected by an annular bearing to achieve relative rotation. The upper seat is fixedly connected to the annular fixing frame, and the lower seat is fixedly connected to the gear ring. At this time, if the front end of the bottle body mold 2 wants to penetrate into the annular fixing frame, the outer diameter of the port of the bottle body mold 2 needs to be smaller than the inner diameter of the annular fixing frame and the inner diameter of the gear ring. Therefore, the fixed connecting member plays a connecting role between the gear ring and the port of the bottle body mold 2. The fixed connecting member can select a ring structure or a plate structure. The outer edge of the ring structure is connected to the gear ring, and the inner edge of the ring structure is connected to the bottle body mold 2. The plate structure is connected to the bottle body mold 2 and the gear ring through the two ends of the plate body, and the port of the bottle body mold 2 can also be provided with a flange ring for screw fixation according to needs. The replacement and fixation of different molds can be achieved by replacing the fixing component or setting the fixing component with adjustable fixed spacing.

[0032] In the embodiment of the two-way screw locking for adjusting the bottle body mold, a plurality of holes are provided on the track 11, and the slide 12 is fixedly connected to the track 11 by a locking slider. This method is applied to the environment where the bottle body mold 2 itself is too long or too heavy, to avoid uneven mass distribution when the rotating platform 1 rotates, and the imbalance generated when the rotor rotates, causing vibration, noise, and even damage to the first axial rotation drive device. In this process, the track 11 and the slide 12 are locked together, so that the bottle body mold 2 is located in the middle of the rotating platform 1, and the vertical line of the midpoint of the axis of the bottle body mold 2 corresponds to the geometric center point of the rotating platform 1.

[0033] In the embodiment of the two-way rack locking for adjusting the bottle body mold, a tooth groove is provided on the track 11, and a telescopic block is provided on the slide 12. The telescopic block can be fixed on the telescopic part of the guide rail lock, and the track 11 and the slide 12 are fixed by the telescopic block and the tooth groove. When the mold length of the bottle body mold 2 is more diversified and the length variation is not fixed, the way in which the hole body restricts the sliding position of the slide 12 causes the minimum distance of the distance adjustment to be too large. Therefore, if a tooth groove is used on the track 11, the tooth groove is laid along the long side direction of the track 11, and the telescopic block is screwed in the form of a screw, the block is rotatably connected to the screw, and at the same time, the block is limited by the sliding guide of the external slot body, so that the block can cooperate with the tooth groove to achieve locking. The minimum adjustment distance of this method is greatly reduced.

[0034] In the one-way fixed embodiment of the adjustment of the bottle body mold, one of the slides 12 is fixedly connected to the rotating platform 1, and the other slide 12 is slidably connected to the track 11. Since the bottle body mold 2 itself has hardness, and after the slide 12 is fixedly connected to the rotating platform 1, the rotating clamping unit 13 located on the fixed slide 12 is connected to the end of the bottle body mold 2, and after the other sliding rotating clamping unit 13 is fixedly connected to the bottle body mold 2, the position of the bottle body mold 2 cannot move either, and even the slide 12 at the movable part does not need to be locked to still ensure the stability of the entire mold. This method is prone to uneven mass distribution, so the positions of the fixed slides 12 at the upper and lower end surfaces of the rotating platform 1 can be selected to be opposite. Or the overall mass of the mold is light and has little impact or no impact on the quality.

[0035] In the axial displacement flipping embodiment, the axial displacement flipping sealing assembly is composed of a plugging mold 3, an axial translation platform 4, and a bottle mouth positioning module 5. The axial translation platform 4 is slidably connected to the gear ring of the rotating clamping unit 13. The axial translation platform 4 slides axially along the bottle body mold 2, and the axial translation platform 4 rotates synchronously with the gear ring of the rotating clamping unit 13. The axial translation platform 4 is rotatably connected to a positioning mold tightening guide 42 through a mold opening rotating frame 41. The mold opening rotating frame 41 uses a rotating cylinder to control the rotation of the positioning mold tightening guide 42, and a displacement sensor or an angle sensor for monitoring the rotation angle of the positioning mold tightening guide 42 is provided on the mold opening rotating frame 41. The positioning mold tightening guide 42 is also in a circular shape. The positioning mold tightening guide 42 is slidably connected to the plugging mold 3 through an elastic telescopic component 45. The plugging mold 3 slides axially along the bottle body mold 2 and seals the end face of the bottle body mold 2.

[0036] In the axial displacement flipping embodiment, since the structure of the bottle body mold 2 is simplified, when the outer diameter remains unchanged and the length changes, only the bottle body mold 2 needs to be replaced. Therefore, the axial translation platform 4 is set at the gear ring of the rotating clamping unit 13. The axial translation platform 4 is a ring structure. The axial translation platform 4 and the gear ring are slidably connected through a hole pin. The distance between the axial translation platform 4 and the rotating clamping unit 13 is adjusted by a displacement driver 43. The displacement driver 43 can select a cylinder or an electric push rod or an electromagnetic telescopic mechanism or a hydraulic cylinder. The displacement driver 43 drives the axial translation platform 4 and the gear ring to perform relative displacement along the axial direction of the bottle body mold 2, so that the metal bottle mouth is separated from the mold, avoiding interference with the rotation opening of the blocking mold 3.

[0037] In the axial displacement flipping embodiment, the above describes the switching problem of the bottle body mold 2 length change and diameter change. This section describes the switching problem of the diameter change. First, please refer to Figure 4 Each customized plugging mold 3 has a ring plate and a hole plane. The ring plate can be slidably elastically connected to the alignment mold tightening guide 42 through the elastic telescopic component 45, so that when the displacement driver 43 drives the axial translation platform 4 and the gear ring to move relative to each other, the elastic telescopic component 45 is elastically deformed, and the plugging mold 3 and the alignment mold tightening guide 42 are relatively displaced. The elastic telescopic component 45 applies elastic force in reverse to the bottle body mold 2 to achieve mold tightening.

[0038] In the axial displacement flipping embodiment, when the plugging mold 3 is prepared, the size specifications of the ring plate and the hole platform remain unchanged, and only the diameter of the hole body and the plugging mold 3 itself changes. At this time, the inner diameter of the ring plate is reduced, but it does not affect the overall use, thereby reducing the cost of using the mold.

[0039] In the axial displacement flipping embodiment, the elastic telescopic component 45 can adopt an elastic telescopic rod structure, one end of the elastic telescopic component 45 is fixedly connected to the orifice plate of the sealing mold 3, and the other end of the elastic telescopic component 45 is fixedly connected to the positioning and tightening mold guide 42. The elastic telescopic component 45 can use a spring, elastic rubber or permanent magnetic repulsion to realize the reset and tightening mold functions.

[0040] In the plugging embodiment, the end of the plugging mold 3 has a hole body, and the bottle mouth positioning module 5 is arranged at the hole body plane of the plugging mold 3. The bottle mouth positioning module 5 includes a radial heating clamping mold 51 for radially clamping and heating the metal pipe mouth, and an axial plugging mold 52 for sealing the metal pipe mouth along the axial movement of the bottle body mold 2; the metal pipe mouth is clamped by the radial heating clamping mold 51, and the metal pipe mouth is heated to avoid the temperature change of the plastic liquid reaching the metal pipe mouth, resulting in defective products. The pipe mouth is an open structure, so the axial plugging mold 52 inserts the punch into the pipe mouth to complete the pipe mouth closure. At the same time, the slip ring mechanism 14 can connect the pipeline with the punch, so that the pipeline passes through the punch into the closed cavity formed by the bottle body mold 2 and the plugging mold 3, and the workpiece part of the equipment itself that uses external energy is connected to the external gas source or oil circuit or circuit through the slip ring mechanism 14.

[0041] In the axial displacement flipping embodiment, the side of the rotating platform 1 is rotatably connected to the slip ring mechanism 14, and the position of the slip ring mechanism 14 corresponds to the axial blocking mold 52. In the two stages before and after use, the rotation axis of the mold opening rotating frame 41 is colinear with the rotation axis of the slip ring mechanism 14, and the end face of the positioning and tightening mold guide 42 is fixedly connected with a coaxial flip cover bracket 44, and the coaxial flip cover bracket 44 is provided with a hole for the slip ring mechanism 14 to slide, and the slip ring mechanism 14 is slidably connected to the coaxial flip cover bracket 44.

[0042] In the axial displacement flipping embodiment, since the slip ring mechanism 14 needs to flip synchronously with the plugging mold 3, a coaxial flip cover bracket 44 is provided at the alignment mold tightening guide 42, and there is a sliding fit between the coaxial flip cover bracket 44 and the slip ring mechanism 14. Limited by the sliding hole, when the alignment mold tightening guide 42 rotates, the slip ring mechanism 14 can be driven to rotate, so in the two stages before and after use, the rotation axis of the mold opening rotating frame 41 is colinear with the rotation axis of the slip ring mechanism 14, which can meet the rotation requirements.

[0043] In the actual application of the utility model, the distance adjustment clamping assembly and the axial displacement flip plugging assembly are combined kits, which are symmetrically distributed on the upper and lower end surfaces of the rotating platform 1 and are of the same number. Two, three, four, etc. can be set on the same end surface of the rotating platform 1 along the rotation axis of the rotating platform 1. And they can also be freely combined according to the quality, for example, the upper end surface is 2 conventional size molds, and the lower end surface is centrally set with a large size mold.

[0044] In the present invention, the gear ring of the rotating clamping unit 13 is driven to rotate by a motor arranged at the slide 12, and the motor drives the bottle body mold 2 to rotate by driving the gear meshing with the gear ring. In the same group of two opposite rotating clamping units 13, at least one rotating clamping unit 13 is provided with a gear ring, and the other may be without a gear ring. Alternatively, both rotating clamping units 13 may be provided with gear rings, and the driving motor may be installed at any rotating clamping unit 13 according to the requirements.

[0045] What is described above 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 in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas cylinder rotational molding machine, comprising a rotating platform (1) and a cooling mechanism (6) arranged below the rotating platform (1), characterized in that: It also includes a distance-adjusting clamping component and two axial displacement flipping and blocking components at both ends of the two blocking bottle body molds (2); The distance-adjusting clamping assembly is distributed on the upper and lower end surfaces of the rotating platform (1), and the distance-adjusting clamping assembly is composed of two slide seats (12) and a track (11) for slidingly guiding the slide seats (12). A rotating clamping unit (13) is arranged on the slide seat (12), and the two rotating clamping units (13) are slidably adjusted to adjust the distance between them through the track (11), and the rotating clamping unit (13) is detachably fixedly connected to the end of the bottle body mold (2); The axial displacement flipping plugging component is composed of a plugging mold (3), an axial translation platform (4), and a bottle mouth positioning module (5); the axial translation platform (4) is slidably connected to the gear ring of the rotating clamping unit (13); the axial translation platform (4) slides axially along the bottle body mold (2), and the axial translation platform (4) and the gear ring of the rotating clamping unit (13) rotate synchronously; the axial translation platform (4) is rotatably connected to a positioning mold tightening guide (42) through a mold opening rotating frame (41); the positioning mold tightening guide (42) is slidably connected to the plugging mold (3) through an elastic telescopic component (45); the plugging mold (3) slides axially along the bottle body mold (2) and seals the end surface of the bottle body mold (2); The end of the plugging mold (3) has a hole body, the bottle mouth positioning module (5) is arranged at the hole body plane of the plugging mold (3), and the bottle mouth positioning module (5) comprises a radial heating clamping mold (51) for radially clamping and heating the metal pipe mouth, and an axial plugging mold (52) for axially moving along the bottle body mold (2) to seal the metal pipe mouth.

2. A gas cylinder rotomolding machine according to claim 1, characterized in that: The rotating clamping unit (13) comprises an annular fixing frame, the gear ring, and a fixing member, one end of the fixing member is fixedly connected to the gear ring, and the other end of the fixing member is fixedly connected to the end surface of the bottle body mold (2).

3. A gas cylinder rotational molding machine according to claim 2, characterized in that: The axial translation platform (4) is an annular structure, the axial translation platform (4) and the gear ring are slidably connected via a linear bearing and a shaft, and the spacing between the axial translation platform (4) and the rotary clamping unit (13) is adjusted via a displacement driver (43).

4. A gas cylinder rotomolding machine according to claim 1, characterized in that: The side of the rotating platform (1) is rotatably connected to a slip ring mechanism (14), and the position of the slip ring mechanism (14) corresponds to the position of the axial blocking mold (52). In the two stages before and after use, the rotation axis of the mold opening rotating frame (41) is colinear with the rotation axis of the slip ring mechanism (14). The end face of the alignment mold tightening guide (42) is fixedly connected to a coaxial flap bracket (44), and the coaxial flap bracket (44) is provided with a hole body for the sliding of the slip ring mechanism (14), and the slip ring mechanism (14) is slidably connected to the coaxial flap bracket (44).

5. A gas cylinder rotomolding machine according to claim 1, characterized in that: The track (11) is provided with a plurality of holes, and the slide seat (12) is fixedly connected to the track (11) via a locking slide block.

6. A gas cylinder rotomolding machine according to claim 1, characterized in that: A tooth groove is provided on the track (11), a telescopic clamping block is provided on the slide seat (12), and the track (11) and the slide seat (12) are fixed by plugging and matching the telescopic clamping block with the tooth groove.

7. A gas cylinder rotomolding machine according to claim 1, characterized in that: One of the slide seats (12) is fixedly connected to the rotating platform (1), and the other slide seat (12) is slidably connected to the track (11).

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