Swing type rotational molding machine

Abstract

The utility model is suitable for the technical field of rotational molding machines, and provides a swing type rotational molding machine which comprises a support, a rotating frame rotationally connected to the support and a swing assembly arranged on the support, and the swing assembly is used for driving the rotating frame to swing in a reciprocating mode. Two rotating shafts are rotationally connected to the rotating frame, two supporting wheels are fixed to each rotating shaft, a second motor is installed on the rotating frame, and the rotating end of the second motor is connected with one rotating shaft. The rotational molding mold, the annular frame and the annular guide rails are lifted and moved by using a lifting appliance, so that the two supporting wheels on the two rotating shafts are respectively arranged in the two annular guide rails, and then the rotational molding mold is supported by the four supporting wheels, and the rotational molding mold adopts a detachable design, so that the rotational molding mold is convenient to replace; the requirements of products with different specifications are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of roto-molding machines, in particular to a swing-type roto-molding machine. Background Art

[0002] The swing type rotomolding machine is a type of rotomolding machine. A rotomolding machine is a type of plastic equipment that uses plastic powder to make hollow plastic products. The rotomolding machine mainly uses a working arm to drive the rotomolding mold that has been evenly heated to rotate, so that the molten plastic powder in the rotomolding mold is evenly coated and adhered to the entire inner surface of the rotomolding mold under the action of gravity, thereby forming the rotomolded product. After cooling and shaping, the mold can be opened to take out the finished product.

[0003] The mold of the swing type rotational molding machine is generally fixed to the swing frame by bolts. When producing products of different sizes, multiple bolts need to be removed to remove the mold, and workers are also required to tighten the bolts one by one during installation. The installation structure of the mold is relatively complicated, which makes the replacement of the mold more troublesome. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a swing type rotational molding machine, aiming to solve the problem of the inconvenience of mold replacement in the existing swing type rotational molding machine.

[0005] The utility model is implemented as follows: a swing type rotational molding machine comprises a support, and also comprises: a rotating frame rotatably connected to the support, and a swinging assembly arranged on the support, wherein the swinging assembly is used to drive the rotating frame to swing back and forth; the rotating frame is rotatably connected to two rotating shafts, two supporting wheels are fixed on the two rotating shafts, a motor 2 is installed on the rotating frame, and the rotating end of the motor 2 is connected to one of the rotating shafts; and also comprises a rotational molding mold, two annular frames are installed on the rotational molding mold, annular guide rails are arranged on the side walls of the two annular frames, and the two supporting wheels on the two rotating shafts are respectively arranged in the two annular guide rails.

[0006] A further technical solution also includes a pressure rod rotatably connected to one side wall of the rotating frame, a pressure wheel is rotatably connected to the pressure rod, and a terminal end of the pressure rod is fixed to the other side wall of the rotating frame by bolts.

[0007] A further technical solution also includes a heating module, wherein the heating module includes a gas pipeline installed at the bottom of the rotating frame, and a plurality of burner heads are installed on the gas pipeline.

[0008] According to a further technical solution, the swing assembly includes a swing plate rotatably connected to the side wall of the support, a gear is installed at the rotation center of the rotating frame, and a plurality of teeth cooperating with the gear are arranged along an arc track on the swing plate.

[0009] According to a further technical solution, a driving assembly is provided on the support, and the driving assembly is used to drive the swing plate to swing back and forth.

[0010] According to a further technical solution, the driving assembly includes a rotating disk rotatably connected to the side wall of the support, the rotating disk is provided with a driving shaft, the swing plate is provided with a long hole that slides with the driving shaft, the support is installed with a motor 1, and the rotating end of the motor 1 is connected to the rotating disk.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model provides a swing type rotomolding machine, which uses a sling to lift and move the rotomolding mold, the annular frame and the annular guide rail, so that the two supporting wheels on the two rotating shafts are respectively arranged in the two annular guide rails, and then the four supporting wheels hold the rotomolding mold. The rotomolding mold in the utility model is disassembled and designed, so that the rotomolding mold is easy to replace and meet the needs of products of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A structural schematic diagram of a swing type rotational molding machine provided by the utility model;

[0014] Figure 2 The utility model provides Figure 1 Schematic diagram of the structure of the rotational molding mold;

[0015] Figure 3 The utility model provides Figure 1 The structural diagram of the middle rotating frame;

[0016] Figure 4 The utility model provides Figure 1 Schematic diagram of the enlarged structure of A.

[0017] In the attached drawings: support 1, rotating frame 2, supporting wheel 3, gas pipeline 4, combustion head 5, rotating shaft 6, rotational molding mold 7, annular frame 8, annular guide rail 9, pressure rod 10, pressure wheel 11, motor 1-12, gear 13, swing plate 14, long hole 15, rotating disk 16, driving shaft 17. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0020] like Figure 1-Figure 4 As shown, a swing type rotational molding machine provided by an embodiment of the utility model includes a support 1, and also includes: a rotating frame 2 rotatably connected to the support 1, and a swing component arranged on the support 1, the swing component is used to drive the rotating frame 2 to swing back and forth; the rotating frame 2 is rotatably connected to two rotating shafts 6, and two supporting wheels 3 are fixed on the two rotating shafts 6, and a motor 2 is installed on the rotating frame 2, and the rotating end of the motor 2 is connected to one of the rotating shafts 6; it also includes a rotational molding mold 7, and two annular frames 8 are installed on the side walls of the two annular frames 8. The two supporting wheels 3 on the two rotating shafts 6 are respectively arranged in the two annular guide rails 9; it also includes a heating module, and the heating module includes a gas pipeline 4 installed at the bottom of the rotating frame 2, and a plurality of burner heads 5 are installed on the gas pipeline 4.

[0021] In the embodiment of the utility model, one end of the rotomolding mold 7 is connected with a sealing disk by bolts. When in use, multiple groups of rotomolding molds 7, annular frames 8 and annular guide rails 9 with different specifications can be set, and a suitable rotomolding mold 7 can be selected according to the product specification requirements; when in use, the rotomolding mold 7, the annular frame 8 and the annular guide rails 9 are lifted and moved by a sling, so that the two supporting wheels 3 on the two rotating shafts 6 are respectively set in the two annular guide rails 9, and then the four supporting wheels 3 hold the rotomolding mold 7, apply a release agent to the inner wall of the rotomolding mold 7, add the raw material into the rotomolding mold 7, close the rotomolding mold 7, open the gas valve, and make the gas pipe The channel 4 is filled with gas and is ignited from the combustion head 5, and the gas discharged from the combustion head 5 is ignited, thereby heating the rotomolding mold 7. The motor 2 drives one of the rotating shafts 6 to rotate, and this rotating shaft 6 drives the rotomolding mold 7 to rotate through the supporting wheel 3, so that the raw material in the rotomolding mold 7 is evenly in contact with the inner wall of the rotomolding mold 7, and the swing component drives the rotating frame 2 to swing back and forth, and the rotating frame 2 drives the rotomolding mold 7 to swing, further allowing the raw material to fully flow in the rotomolding mold 7, thereby improving the rotomolding effect. The rotomolding mold 7 in the utility model is disassembled and designed, which makes it easy to replace the rotomolding mold 7 to meet the needs of products of different specifications.

[0022] like Figure 1-Figure 3 As shown, as a preferred embodiment of the utility model, it also includes a pressure rod 10 rotatably connected to one side wall of the rotating frame 2, a pressure wheel 11 is rotatably connected to the pressure rod 10, and the end of the pressure rod 10 is fixed to the other side wall of the rotating frame 2 by bolts.

[0023] In the embodiment of the utility model, after the rotational molding mold 7 is installed, the pressure rod 10 is buckled on the rotating frame 2, and then the movable end of the pressure rod 10 is fixed to the rotating frame 2 by bolts. At this time, the pressure wheel 11 on the pressure rod 10 squeezes the rotational molding mold 7, so that the support wheel 3 is in stable contact with the annular guide rail 9, so that the support wheel 3 and the rotational molding mold 7 are stably transmitted. The inner wall of the annular guide rail 9 and the side wall of the support wheel 3 are provided with anti-slip grooves, which further ensure the stable transmission of the support wheel 3 and the rotational molding mold 7.

[0024] like Figure 1-Figure 4 As shown, as a preferred embodiment of the utility model, the swing assembly includes a swing plate 14 rotatably connected to the side wall of the support 1, a gear 13 is installed at the rotation center of the rotating frame 2, and a plurality of teeth cooperating with the gear 13 are arranged on the swing plate 14 along an arc trajectory, and a driving assembly is arranged on the support 1, and the driving assembly is used to drive the swing plate 14 to swing back and forth; the driving assembly includes a rotating disk 16 rotatably connected to the side wall of the support 1, a driving shaft 17 is arranged on the rotating disk 16, and a long hole 15 slidably cooperating with the driving shaft 17 is arranged on the swing plate 14, and a motor 12 is installed on the support 1, and the rotating end of the motor 12 is connected to the rotating disk 16.

[0025] In the embodiment of the utility model, the motor 12 drives the rotating disk 16 to rotate, the rotating disk 16 drives the driving shaft 17 to revolve, the driving shaft 17 drives the swing plate 14 to swing back and forth through the long hole 15, the swing plate 14 drives the gear 13 to rotate back and forth, and the gear 13 drives the rotating frame 2 to rotate back and forth.

[0026] The utility model provides a swing type rotomolding machine in the above embodiment. According to the product specification requirements, a suitable rotomolding mold 7 is selected. When in use, a sling is used to lift and move the rotomolding mold 7, the annular frame 8 and the annular guide rail 9, so that the two support wheels 3 on the two rotating shafts 6 are respectively arranged in the two annular guide rails 9, and then the four support wheels 3 hold the rotomolding mold 7, the pressure rod 10 is buckled on the rotating frame 2, and then the movable end of the pressure rod 10 is fixed to the rotating frame 2 by bolts. At this time, the pressure wheel 11 on the pressure rod 10 squeezes the rotomolding mold 7, so that the support wheel 3 is in stable contact with the annular guide rail 9, so that the support wheel 3 and the rotomolding mold 7 are stably transmitted, a release agent is applied to the inner wall of the rotomolding mold 7, and the raw material is added into the rotomolding mold 7, the rotomolding mold 7 is molded, and the gas valve is opened to fill the gas pipeline 4. The gas is ignited from the combustion head 5, and the gas discharged from the combustion head 5 is ignited, thereby heating the rotational molding mold 7. Motor 2 drives one of the rotating shafts 6 to rotate, and this rotating shaft 6 drives the rotational molding mold 7 to rotate through the supporting wheel 3, so that the raw material in the rotational molding mold 7 is evenly in contact with the inner wall of the rotational molding mold 7. Motor 1 12 drives the rotating disk 16 to rotate, and the rotating disk 16 drives the driving shaft 17 to revolve, and the driving shaft 17 drives the swing plate 14 to swing back and forth through the long hole 15, and the swing plate 14 drives the gear 13 to rotate back and forth, and the gear 13 drives the rotating frame 2 to rotate back and forth, and the rotating frame 2 drives the rotational molding mold 7 to swing, further making the raw material fully flow in the rotational molding mold 7, thereby improving the rotational molding effect. In this application, the rotational molding mold 7 is disassembled and designed, which is convenient for replacing the rotational molding mold 7 to meet the needs of products of different specifications.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A swing type rotational molding machine, comprising a support (1), characterized in that: Also includes: A rotating frame (2) rotatably connected to the support (1), and a swing component arranged on the support (1), wherein the swing component is used to drive the rotating frame (2) to swing back and forth; The rotating frame (2) is rotatably connected to two rotating shafts (6), and two supporting wheels (3) are fixed to the two rotating shafts (6). A second motor is installed on the rotating frame (2), and the rotating end of the second motor is connected to one of the rotating shafts (6); It also comprises a rotational moulding mould (7), on which two annular frames (8) are mounted, and on the side walls of the two annular frames (8) are annular guide rails (9), and the two supporting wheels (3) on the two rotating shafts (6) are respectively arranged in the two annular guide rails (9).

2. The swing type rotational molding machine according to claim 1, characterized in that: It also comprises a pressure rod (10) rotatably connected to one side wall of the rotating frame (2), a pressure wheel (11) rotatably connected to the pressure rod (10), and a distal end of the pressure rod (10) is fixed to the other side wall of the rotating frame (2) by means of bolts.

3. The swing type rotational molding machine according to claim 1, characterized in that: It also comprises a heating module, the heating module comprising a gas pipeline (4) installed at the bottom of the rotating frame (2), and a plurality of combustion heads (5) are installed on the gas pipeline (4).

4. The swing type rotational molding machine according to claim 1, characterized in that: The swing assembly comprises a swing plate (14) rotatably connected to the side wall of the support (1), a gear (13) is mounted at the rotation center of the rotating frame (2), and a plurality of teeth cooperating with the gear (13) are arranged on the swing plate (14) along an arc track.

5. The swing type rotational molding machine according to claim 4, characterized in that: The support (1) is provided with a driving assembly, and the driving assembly is used to drive the swing plate (14) to swing back and forth.

6. The swing type rotational molding machine according to claim 5, characterized in that: The driving assembly comprises a rotating disk (16) rotatably connected to the side wall of the support (1), a driving shaft (17) is provided on the rotating disk (16), a long hole (15) slidably matched with the driving shaft (17) is provided on the swing plate (14), a motor (12) is installed on the support (1), and a rotating end of the motor (12) is connected to the rotating disk (16).

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