Rotational molding machine with plastic powder adding machine

Abstract

The utility model discloses a rotational molding machine with a plastic powder adding machine, and relates to the technical field of plastic powder adding machines. The rotational molding machine with the plastic powder adding machine comprises a workbench, a motor is fixedly connected to the bottom of the workbench, an electric rotating rod is rotatably connected to the top of the motor, and a rotational molding barrel is fixedly connected to the top of the electric rotating rod. A rotating plate is extruded through the self weight of plastic powder, a pressure elastic piece can be stretched under the condition that the extrusion force is too large, the rotating plate can rotate downwards, the plastic powder is put into a rotational molding barrel, and meanwhile the rotating plate can extrude an air bag; and the air bag can convey internal air into the air pressure cabin through an air conveying pipe to drive an air pressure rod and a sealing baffle to move, the interior of the powder plastic adding barrel is sealed, continuous discharging is prevented, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic powder adding machines, in particular to a rotational molding machine with a plastic powder adding machine. Background Art

[0002] Roto-molding, also known as rotational molding, rotational molding, rotational molding, etc., is a thermoplastic hollow molding method. The method is to first add the plastic raw material into the mold, and then the mold is continuously rotated along two vertical axes and heated. Under the action of gravity and heat energy, the plastic raw material in the mold is gradually and evenly coated, melted and adhered to the entire surface of the mold cavity, forming into the required shape, and then cooled and shaped into a product.

[0003] According to a plastic powder adding machine for rotational molding process disclosed (publication number: CN 208247279 U), including a storage tank for storing plastic powder, a bracket is fixed at the bottom position of the storage tank, a conical outlet pipe is arranged at the bottom of the storage tank, a transparent feed pipe is inserted in the outlet pipe, a fan is fixed on the side of the bracket, the fan is powered by AC power, and is connected to a speed switch for adjusting the output wind force, a feeding pipe is connected at the air outlet position of the fan, the upper end of the feeding pipe is provided with a plug, the feed pipe is inserted into the plug and forms a seal with the plug, a hose is fixed at the end of the feeding pipe away from the fan, two square tube parts are arranged on the tube body of the feed pipe, a socket is arranged on the side of the square tube, and a plug plate for closing the square tube is arranged in the socket, the above application is convenient for loading through the arrangement of the above structure, and the loading is relatively uniform, but the above application cannot carry out quantitative loading, and excessive loading is easy to lead to insufficient rotational molding, affecting subsequent use, and the practicality is not strong. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a rotational molding machine with a plastic powder adding machine, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a rotational molding machine with a plastic powder adding machine, comprising a workbench, the bottom of the workbench is fixedly connected to a motor, the top of the motor is rotatably connected to an electric rotating rod, the top of the electric rotating rod is fixedly connected to a rotational molding barrel, the top two sides of the workbench are fixedly connected to storage support rods, the inner side of the support rods is fixedly connected to a connecting plate, the side of the connecting plate away from the support rods is fixedly connected to a limited sleeve barrel, and the workbench is provided with a quantitative unloading device and a rotational molding auxiliary device;

[0005] The quantitative feeding device includes a plastic powder adding barrel, the inner side of the lower end of the plastic powder adding barrel is rotatably connected to a rotating plate, the top of the rotating plate is fixedly connected to a pressure spring plate, the two sides of the lower end of the plastic powder adding barrel are fixedly connected to fixed plates, the sides of the fixed plates are fixedly connected to air bags, the side of the air bag close to the fixed plate is fixedly connected to an air pipe, the side of the air pipe away from the air bag is fixedly connected to an air pressure cabin, the side of the air pressure cabin is slidably connected to an air pressure rod, and the side of the air pressure rod away from the air pressure cabin is fixedly connected to a sealing baffle.

[0006] Preferably, the outer rotating sleeve of the rotational molding barrel is connected to a limiting sleeve barrel, the lower end of the rotational molding barrel is fixedly connected to a discharge pipe, and the two sides of the plastic powder adding barrel are fixedly connected to support rods, so that the rotational molding barrel can effectively rotationally mold the plastic powder.

[0007] Preferably, the side of the pressure spring away from the rotating plate is fixedly connected to the inner wall of the plastic powder adding barrel, connecting grooves are provided on both sides of the plastic powder adding barrel, and a sealing baffle is slidably connected to the inner side of the connecting groove, and the air pressure cabin is fixedly connected to the top of the support rod, and the pressure spring can withstand a certain weight of pressure.

[0008] Preferably, the rotational molding auxiliary device includes an elastic connecting rod, the side of the elastic connecting rod is fixedly connected to a sliding connecting rod, the lower end side of the sliding connecting rod is fixedly connected to a knocking head, and the inner wall of the rotational molding barrel is fixedly connected to an arc-shaped protrusion block. The rotational molding auxiliary device can effectively enhance the effect of rotational molding.

[0009] Preferably, the side of the elastic connecting rod away from the sliding connecting rod is fixedly connected to the inner side of the support rod, and the bottom of the sliding connecting rod is slidably connected to the fixed plate. The elastic connecting rod can effectively drive the sliding connecting rod to return to its original position.

[0010] Preferably, the striking head and the arc-shaped protrusion block are both shaped as hemispheres, and the striking head and the arc-shaped protrusion block are made of metal steel. The striking head and the arc-shaped protrusion block can effectively generate vibration after striking, thereby enhancing the rotational molding effect.

[0011] The utility model provides a rotational molding machine with a plastic powder adding machine. It has the following beneficial effects:

[0012] (1) The present application uses a quantitative feeding device. After the plastic powder on the rotating plate accumulates to a certain weight, the rotating plate can be squeezed by the weight of the plastic powder itself. When the squeezing force is too large, the pressure spring will be stretched, and the rotating plate will rotate downward to put the plastic powder into the rotational molding barrel. At the same time, the rotating plate will squeeze the airbag, and the airbag will transport the internal gas to the inside of the air pressure cabin through the air pipe, driving the air pressure rod and the sealing baffle to move, thereby sealing the inside of the powder plastic adding barrel to prevent further feeding. The present application is highly practical.

[0013] (2) The present application uses a rotational molding auxiliary device, which can start the motor and drive the rotational molding barrel to rotate through the electric rotating rod. The arc-shaped protrusion block will rotate synchronously under the drive of the rotational molding barrel. After rotating to a fixed position, it will knock with the knocking head to generate vibration, which can effectively enhance the rotational molding effect and further enhance the practicality of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional internal structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at point B in the middle.

[0018] In the figure: 1. workbench; 2. motor; 3. electric rotating rod; 4. rotational molding barrel; 5. support rod; 6. connecting plate; 7. limit sleeve barrel; 8. quantitative feeding device; 81. plastic powder adding barrel; 82. rotating plate; 83. pressure spring; 84. air bag; 85. fixing plate; 86. air pipe; 87. air pressure cabin; 88. air pressure rod; 89. sealing baffle; 9. rotational molding auxiliary device; 91. elastic connecting rod; 92. sliding connecting rod; 93. knocking head; 94. arc-shaped raised block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example 1: Please refer to Figure 1-3A rotational molding machine with a plastic powder adding machine comprises a workbench 1, a motor 2 is fixedly connected to the bottom of the workbench 1, an electric rotating rod 3 is rotatably connected to the top of the motor 2, a rotational molding barrel 4 is fixedly connected to the top of the electric rotating rod 3, support rods 5 are fixedly connected to both sides of the top of the workbench 1, a connecting plate 6 is fixedly connected to the inner side of the support rod 5, a limited sleeve barrel 7 is fixedly connected to the side of the connecting plate 6 away from the support rod 5, and a quantitative unloading device 8 and a rotational molding auxiliary device 9 are arranged on the workbench 1;

[0021] The quantitative feeding device 8 includes a plastic powder adding barrel 81, the lower end of the plastic powder adding barrel 81 is rotatably connected to the inner side of a rotating plate 82, the top of the rotating plate 82 is fixedly connected to a pressure spring 83, the lower end of the plastic powder adding barrel 81 is fixedly connected to fixed plates 85 on both sides, the side of the fixed plate 85 is fixedly connected to an air bag 84, the side of the air bag 84 close to the fixed plate 85 is fixedly connected to an air pipe 86, the side of the air pipe 86 away from the air bag 84 is fixedly connected to an air pressure cabin 87, the side of the air pressure cabin 87 is slidably connected to an air pressure rod 88, and the side of the air pressure rod 88 away from the air pressure cabin 87 is fixedly connected to a sealing baffle 89. The outer rotational sleeve of the rotational molding barrel 4 is rotatably sleeved with a limited sleeve barrel 7, the lower end of the rotational molding barrel 4 is fixedly connected to a discharge pipe, and the two sides of the plastic powder adding barrel 81 are fixedly connected to support rods 5, and the rotational molding barrel 4 can effectively perform rotational molding on the plastic powder. The side of the pressure spring 83 away from the rotating plate 82 is fixedly connected to the inner wall of the plastic powder adding barrel 81. The plastic powder adding barrel 81 is provided with connecting chutes on both sides. The inner side of the connecting chutes is slidably connected with a sealing baffle 89. The air pressure cabin 87 is fixedly connected to the top of the support rod 5. The pressure spring 83 can withstand a certain weight of pressure. The present application uses a quantitative unloading device 8 to squeeze the rotating plate 82 by the weight of the plastic powder after the plastic powder on the rotating plate 82 accumulates to a certain weight. The pressure spring 83 will stretch when the extrusion force is too large, and the rotating plate 82 will rotate downward to put the plastic powder into the rotational molding barrel 4. At the same time, the rotating plate 82 will squeeze the airbag 84, and the airbag 84 will transport the internal gas to the interior of the air pressure cabin 87 through the air pipe 86 to drive the air pressure rod 88 and the sealing baffle 89 to move, so as to seal the interior of the plastic powder adding barrel 81 and prevent further unloading. It is very practical.

[0022] When the present embodiment is used, the plastic powder storage box is first docked with the top of the plastic powder adding barrel 81. After the docking is completed, the valve of the plastic powder storage box is opened, and the plastic powder will enter the plastic powder adding barrel 81 and accumulate on the rotating plate 82. When the plastic powder on the top of the rotating plate 82 accumulates to a certain weight, it will squeeze the rotating plate 82. The pressure spring 83 will stretch when the squeezing force is too large, and the rotating plate 82 will rotate downward to put the plastic powder into the rotational molding barrel 4. The motor 2 is turned on, and the motor 2 will drive the rotational molding barrel 4 to rotate through the electric rotating rod 3 to perform rotational molding on the plastic powder inside. After the rotating plate 82 rotates to a fixed position, it will squeeze The airbag 84 will transmit the internal gas to the interior of the air pressure chamber 87 through the air pipe 86 after being squeezed. The air pressure chamber 87 will drive the air pressure rod 88 and the sealing baffle 89 to move, and seal the interior of the plastic powder adding barrel 81 to prevent further unloading. After the unloading of the plastic powder is completed, the pressure spring 83 will drive the rotating plate 82 to return to its original position, and the airbag 84 will not be squeezed any more. The gas in the air pressure chamber 87 will flow back to the interior of the airbag 84 through the air pipe 86, and the airbag 84 will return to its expanded state. The air pressure rod 88 will drive the sealing baffle 89 to return to its original position without the drive of gas, thereby releasing the sealing state of the interior of the plastic powder adding barrel 81, which is highly practical.

[0023] Example 2: Please refer to Figure 1-4 On the basis of the first embodiment, the rotational molding auxiliary device 9 includes an elastic connecting rod 91, a sliding connecting rod 92 is fixedly connected to the side of the elastic connecting rod 91, a knocking head 93 is fixedly connected to the lower end side of the sliding connecting rod 92, and an arc-shaped protrusion block 94 is fixedly connected to the inner wall of the rotational molding barrel 4, and the rotational molding auxiliary device 9 can effectively enhance the effect of rotational molding. The side of the elastic connecting rod 91 away from the sliding connecting rod 92 is fixedly connected to the inner side of the support rod 5, and the bottom of the sliding connecting rod 92 is slidably connected to the fixed plate 85, and the elastic connecting rod 91 can effectively drive the sliding connecting rod 92 to return to its original position. The shape of the knocking head 93 and the arc-shaped protrusion block 94 are both set to be a hemisphere, and the material of the knocking head 93 and the arc-shaped protrusion block 94 is metal steel. After the knocking of the knocking head 93 and the arc-shaped protrusion block 94, vibration can be effectively generated to enhance the rotational molding effect. The present application uses a rotational molding auxiliary device 9, which can drive the rotational molding barrel 4 to rotate through the electric rotating rod 3 when the motor 2 is started. The arc-shaped protrusion block 94 will rotate synchronously under the drive of the rotational molding barrel 4. After rotating to a fixed position, it will knock with the knocking head 93 to generate vibration, which can effectively enhance the rotational molding effect and further enhance the practicality of the entire device.

[0024] When in use, on the basis of Example 1, while the motor 2 drives the rotational molding barrel 4 to rotate through the electric rotating rod 3, it will also drive the arc-shaped protrusion block 94 to rotate synchronously. After the arc-shaped protrusion block 94 rotates to a fixed position, it will knock with the knocking head 93, and repeatedly rotate and knock to generate vibration, thereby enhancing the rotational molding effect in the rotational molding barrel 4 and further enhancing the practicality of the entire device.

[0025] The above description 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rotational molding machine with a plastic powder adding machine, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a motor (2), the top of the motor (2) is rotatably connected to an electric rotating rod (3), the top of the electric rotating rod (3) is fixedly connected to a rotational molding barrel (4), the top of the workbench (1) is fixedly connected to support rods (5) on both sides, the inner side of the support rod (5) is fixedly connected to a connecting plate (6), the side of the connecting plate (6) away from the support rod (5) is fixedly connected to a limiting sleeve barrel (7), and the workbench (1) is provided with a quantitative unloading device (8) and a rotational molding auxiliary device (9); The quantitative unloading device (8) comprises a plastic powder adding barrel (81), the inner side of the lower end of the plastic powder adding barrel (81) is rotatably connected to a rotating plate (82), the top of the rotating plate (82) is fixedly connected to a pressure spring sheet (83), the lower end of the plastic powder adding barrel (81) is fixedly connected to fixed plates (85) on both sides, the side of the fixed plate (85) is fixedly connected to an air bag (84), the side of the air bag (84) close to the fixed plate (85) is fixedly connected to an air supply pipe (86), the side of the air supply pipe (86) away from the air bag (84) is fixedly connected to an air pressure chamber (87), the side of the air pressure chamber (87) is slidably connected to an air pressure rod (88), and the side of the air pressure rod (88) away from the air pressure chamber (87) is fixedly connected to a sealing baffle (89).

2. A rotational molding machine with a plastic powder adding machine according to claim 1, characterized in that: The outer portion of the rotational molding barrel (4) is rotatably sleeved with a limiting sleeve barrel (7), the lower end of the rotational molding barrel (4) is fixedly connected to a discharge pipe, and both sides of the plastic powder adding barrel (81) are fixedly connected to support rods (5).

3. A rotational molding machine with a plastic powder adding machine according to claim 2, characterized in that: The side of the pressure spring (83) away from the rotating plate (82) is fixedly connected to the inner wall of the plastic powder adding barrel (81), and the plastic powder adding barrel (81) is provided with connecting grooves on both sides. The inner side of the connecting groove is slidably connected to a sealing baffle (89), and the air pressure chamber (87) is fixedly connected to the top of the support rod (5).

4. A rotational molding machine with a plastic powder adding machine according to claim 3, characterized in that: The rotational molding auxiliary device (9) comprises an elastic connecting rod (91), a sliding connecting rod (92) is fixedly connected to the side of the elastic connecting rod (91), a knocking head (93) is fixedly connected to the lower side of the sliding connecting rod (92), and an arc-shaped protruding block (94) is fixedly connected to the inner wall of the rotational molding barrel (4).

5. A rotational molding machine with a plastic powder adding machine according to claim 4, characterized in that: The side of the elastic connecting rod (91) away from the sliding connecting rod (92) is fixedly connected to the inner side of the support rod (5), and the bottom of the sliding connecting rod (92) is slidably connected to the fixed plate (85).

6. A rotational molding machine with a plastic powder adding machine according to claim 5, characterized in that: The striking head (93) and the arc-shaped protruding block (94) are both configured to be hemispherical in shape, and the striking head (93) and the arc-shaped protruding block (94) are made of metal steel.

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