Full-automatic rotational molding system

Abstract

The utility model provides a full-automatic rotational molding system, and belongs to the technical field of rotational molding machines. The problem that an existing rotational molding machine is low in automation degree is solved. The utility model discloses a full-automatic rotational molding system which comprises a base, a stock bin, an automatic weighing machine, a rotational molding machine, a conveying line, a manipulator and a hopper. According to the full-automatic rotational molding system, full-automatic machining of the full-automatic rotational molding system can be achieved, manual participation is effectively reduced, the situation that workers stay beside a rotational molding machine for a long time and are affected by the high temperature of the rotational molding machine can be avoided, and then rotational molding machining efficiency of the whole full-automatic rotational molding system can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of roto-molding machines and relates to a full-automatic roto-molding system. Background Art

[0002] As one of the hollow plastic product molding processes, rotational molding is particularly suitable for the production of large, super-large, and complex-shaped hollow plastic products. The principle is to drive the mold to rotate 360° in space through the main and secondary axis arms of the equipment, and heat the mold. Under the action of heat conduction and heat radiation, the powder in the mold melts and adheres to the inner surface of the mold layer by layer. After cooling and shaping, the mold is opened to take out the product.

[0003] During the product molding process, firstly, it is difficult to realize the automatic opening and closing of the mold because the mold is baked at high temperature in the oven. Therefore, in the current rotational molding production process, the processes of adding materials, installing embedded parts, closing the mold, removing the mold, and taking out the product are all completed manually, which has problems such as difficulty in ensuring the stability of product quality, low production efficiency, and high labor intensity of workers. Secondly, during the production process, the mold is heated by burning fuel for heating, which will produce CO, CO2 and other gases, causing certain pollution to the environment and affecting the health of production personnel. Summary of the invention

[0004] The utility model aims to solve the above problems in the prior art and proposes a fully automatic rotational molding system which reduces manual operation and has high production efficiency.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a fully automatic rotational molding system, comprising:

[0006] A base, on which a silo, an automatic weighing machine, a rotational molding machine and a conveying line are arranged;

[0007] A manipulator is slidably arranged on the base, each of the silos can convey powder to the corresponding automatic weighing machine, and a hopper is arranged directly below each of the automatic weighing machines;

[0008] When the robot clamps the hopper into the corresponding rotomolding machine, the hopper automatically adds the powder into the rotomolding machine. When the powder in the rotomolding machine is processed into a finished product, the robot grabs the finished product onto the conveyor line.

[0009] In the above-mentioned fully automatic rotational molding system, the base is provided with a slide rail for slidingly connecting a manipulator, the base is provided with a material rack for supporting a corresponding automatic weighing machine, and each of the hoppers is stuck in the corresponding material rack.

[0010] In the above-mentioned fully automatic rotational molding system, each of the rotational molding machines includes a support base arranged on a base, a rotating arm is movably mounted on the support base, an opening and closing mold assembly is movably mounted on the rotating arm, the rotating arm can rotate around the X-axis or Y-axis of the support base, and the opening and closing mold assembly can rotate around the Z-axis of the rotating arm.

[0011] In the above-mentioned fully automatic rotational molding system, the opening and closing mold assembly includes a lower template movably mounted on a rotating arm, an upper template movably mounted directly above the lower template, a pair of driving members and a pair of guide members are provided between the lower template and the upper template, the two driving members are respectively arranged at the diagonal of the upper template, and the two guide members are respectively arranged at the other diagonal of the upper template.

[0012] In the above-mentioned fully automatic rotational molding system, a first motor is provided in the support seat, a first rotating shaft is provided on a side surface of the rotating arm facing the support seat, one end of the first rotating shaft is movably inserted in the support seat, a first gear is provided on the first motor, and a second gear meshing with the first gear is installed on the first rotating shaft.

[0013] In the above-mentioned fully automatic rotational molding system, a second rotating shaft connected to the lower template is movably provided on the rotating arm, a second motor is provided at the lower end surface of the rotating arm, and the second motor is connected to the second rotating shaft through a transmission member.

[0014] In the above-mentioned fully automatic rotational molding system, a plurality of cooling fans are arranged on the side of the rotating arm.

[0015] In the above-mentioned fully automatic rotational molding system, a discharge pipe is provided at the bottom end of the hopper, a block for blocking the discharge pipe is provided in the hopper, the hopper is also provided with a starting member for driving the block to move, and a plurality of insertion rods are provided on one side of the block facing the inside of the hopper.

[0016] In the above-mentioned fully automatic rotational molding system, the starting member includes a cross frame connected to the inner wall of the hopper, a starting cylinder is arranged on the cross frame, a starting rod is movably arranged on the starting cylinder, and the starting rod movably passes through the cross frame and is connected to the blocking block.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. When the fully automatic rotomolding system of the present invention is working, the hopper conveys the powder to the automatic weighing machine, the automatic weighing machine weighs the powder and discharges the weighed powder into the corresponding hopper, after which the manipulator grabs the hopper containing the powder and puts it into the designated rotomolding machine, which happens to be in the on state at this moment, after which the hopper in the rotomolding machine automatically opens and discharges the powder into the rotomolding machine, when the hopper has discharged the powder stored therein, the manipulator transfers the hopper to the bottom of the automatic weighing machine, at the same time, the rotomolding machine rotomolds the powder in the form of electric heating, when the rotomolding machine completes the rotomolding process, the powder in the rotomolding machine will be transformed into a finished product, at the same time, the rotomolding machine is turned on, the manipulator grabs the finished product onto the conveyor line, and the conveyor line conveys the finished product to the next station, in this way, the fully automatic operation of the rotomolding system can be realized, manual operation can be reduced, and the working efficiency of the rotomolding system can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the fully automatic rotational molding system.

[0020] Figure 2 It is a structural diagram of a rotational molding machine.

[0021] Figure 3 It is a structural diagram of the rotational molding machine from another perspective.

[0022] Figure 4 It is a structural diagram of the rotational molding machine after removing the mold opening and closing components.

[0023] Figure 5 yes Figure 4 Schematic diagram of the structure from another perspective.

[0024] Figure 6 It is a structural diagram of the driving parts.

[0025] Figure 7 yes Figure 6 Section view at AA.

[0026] Figure 8 It is a structural schematic diagram of the guide member.

[0027] Fig. 9 yes Figure 8 Sectional view at BB.

[0028] Fig.10 It is a structural diagram of the hopper.

[0029] Fig.11 It is a schematic diagram of the structure of the starter.

[0030] Fig.12 is a side view of the starter.

[0031] Fig.13 yes Fig.12 Cross-sectional view at CC. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figure 1 — Fig.13 As shown, the utility model is a fully automatic rotational molding system comprising a base 100 , a silo 130 , an automatic weighing machine 110 , a rotational molding machine 300 , a conveyor line 140 , a manipulator 120 and a hopper 200 .

[0034] In the present invention, the base 100 is the ground.

[0035] A silo 130, an automatic weighing machine 110, a roto-molding machine 300 and a conveyor line 140 are provided on the base 100, and a manipulator 120 is slidably provided on the base 100, each of the silos 130 can convey powder to the corresponding automatic weighing machine 110, and a hopper 200 is provided directly below each of the automatic weighing machines 110; when the fully automatic roto-molding system is working, the silo 130 conveys the powder to the automatic weighing machine 110, the automatic weighing machine 110 weighs the powder and discharges the weighed powder into the corresponding hopper 200, after which the manipulator 120 grabs the hopper 200 containing the powder and puts it into the designated roto-molding machine 300, which happens to be in the open state at this moment, and then The hopper 200 in the rotomolding machine 300 is automatically opened, and the powder is added into the rotomolding machine 300. When the hopper 200 discharges the powder stored therein, the manipulator 120 transfers the hopper 200 to the bottom of the automatic weighing machine 110. At the same time, the rotomolding machine 300 performs rotomolding processing on the powder by means of electric heating. When the rotomolding machine 300 completes the rotomolding processing, the powder in the rotomolding machine 300 will be converted into a finished product. At the same time, the rotomolding machine 300 is opened, and the manipulator 120 grabs the finished product onto the conveyor line 140, and the conveyor line 140 conveys the finished product to the next station. In this way, the rotomolding system can be fully automatic, reducing manual operation and further improving the working efficiency of the rotomolding system. Among them, the number of the silo 130, the automatic weighing machine 110, the rotomolding machine 300 and the conveyor line 140 can be set according to the processing requirements and process requirements. Specifically, the number can be one, two or more.

[0036] Furthermore, before the injection molding machine finishes working, people can perform electrical processing on the injection molding machine without adding powder, and then cool the upper mold and the lower mold so that the powder remaining in the injection molding machine can be converted into solid defective products. In this way, it is convenient for people to take the defective products out of the injection molding machine to achieve the effect of cleaning the upper mold and the lower mold.

[0037] The base 100 is provided with a slide rail 121 for slidably connecting the manipulator 120. Through the setting of the slide rail 121, the manipulator 120 can slide smoothly on the base 100, so that the manipulator 120 can move back and forth between the automatic weighing machine 110 and each rotational molding machine 300.

[0038] The base 100 is provided with a material rack 111 for supporting the corresponding automatic weighing machine 110. Each of the hoppers 200 is stuck in the corresponding material rack 111. A positioning column (not marked in the figure) is provided in the material rack 111. Through the action of the positioning column, the hopper 200 can be positioned directly under the automatic weighing machine 110, so that the automatic weighing machine 110 can smoothly discharge the powder into the hopper 200.

[0039] In the present invention, the powder material can be transported between the silo 130 and the automatic weighing machine 110 by pneumatic means, that is, a hair dryer (not marked in the figure) is provided in the silo 130, and the hair dryer can blow the powder material toward the automatic weighing machine 110 so that the powder material can smoothly enter the automatic weighing machine 110; in addition, the powder material can be transported between the silo 130 and the automatic weighing machine 110 by means of a vertical conveyor (not marked in the figure). Specifically, one end of the vertical conveyor is located at the bottom of the silo 130, and the other end of the vertical conveyor is connected to the top of the automatic weighing machine. In this way, the powder material falling from the silo 130 onto the vertical conveyor will be transported to the automatic weighing machine 110 by the vertical conveyor.

[0040] like Figure 2 — Fig. 9As shown, each of the rotomolding machines 300 includes a support base 310 disposed on the base 100, a rotating arm 320 is movably mounted on the support base 310, and an opening and closing mold assembly 330 is movably mounted on the rotating arm 320. The rotating arm 320 can rotate around the X-axis or Y-axis of the support base 310, and the opening and closing mold assembly 330 can rotate around the Z-axis of the rotating arm 320. When the hopper 200 discharges the powder inside it into the opening and closing mold assembly 330 and the manipulator 120 removes the hopper 200, the opening and closing mold assembly 330 will be closed, and the opening and closing mold assembly 330 uses electric heating to heat the powder. The powder is heated to melt, and during this process, the rotating arm 320 rotates around the X-axis or Y-axis of the support seat 310, and at the same time, the opening and closing mold assembly 330 rotates around the Z-axis of the rotating arm 320. In this way, the opening and closing mold assembly 330 can be rotated in space, so that the melted powder liquid can flow smoothly in the opening and closing mold assembly 330, so that the rotationally molded product can be more uniform; when the rotational molding process is completed, the rotational molding machine 300 cools the opening and closing mold assembly 330 so that the finished product can be shaped, and then the opening and closing mold assembly 330 is opened, and the robot 120 can take out the finished product.

[0041] The mold opening and closing assembly 330 includes a lower mold plate 332 movably mounted on the rotating arm 320, an upper mold plate 331 movably mounted directly above the lower mold plate 332, a pair of driving members 333 and a pair of guiding members 334 are arranged between the lower mold plate 332 and the upper mold plate 331, two of the driving members 333 are respectively arranged at the diagonal of the upper mold plate 331, and two of the guiding members 334 are respectively arranged at the other diagonal of the upper mold plate 331. Before working, people need to install the upper mold (not marked in the figure) suitable for the rotational molding machine 300 on the upper mold plate 331, and install the lower mold (not marked in the figure) suitable for the rotational molding machine 300 on the lower mold plate 332. During the rotational molding process, the driving member 333 drives the upper mold plate 331 to move toward the lower mold plate 332, and at the same time, the guiding members 334 are arranged at the other diagonal of the upper mold plate 331. Component 334 will also guide the upper template 331 to move in a directional manner relative to the lower template 332 until a predetermined gap is reached between the upper mold and the lower mold. During this process, the upper mold and the lower mold are powered on at the same time and electrically heated so that the upper mold and the lower mold reach a predetermined gap and after a preset time, the powder between the upper mold and the lower mold can be smoothly melted. When the rotational molding process is completed, the upper mold and the lower mold are powered off and the upper mold and the lower mold are cooled, the driving component 333 moves the upper template 331 away from the lower mold 332. At the same time, the upper template 331 will also drive the upper mold to move away from the lower mold, that is, the opening of the opening and closing mold assembly 330 is realized. In this way, the robot 120 can grab the cooled finished product from the lower mold, thereby completing the rotational molding process of converting the powder into a finished product.

[0042] Each of the driving members 333 includes a driving cylinder 3331 disposed on the lower template 332, a driving rod 3332 is movably disposed on the driving cylinder 3331, the lower template 332 is provided with a first guide sleeve 3333 corresponding to the driving cylinder 3331, the driving rod 3332 movably passes through the end of the first guide sleeve 3333, a second guide sleeve 3334 is disposed on a movable sleeve 3342 outside the first guide sleeve 3333, one end of the driving rod 3332 is connected to the second guide sleeve 3334, and the upper template 331 is connected to the second guide sleeve 333 4 connection, when the driving cylinder 3331 pushes the driving rod 3332 to move, because the driving rod 3332 is connected to the second guide sleeve 3334, the second guide sleeve 3334 is connected to the upper template 331, the driving cylinder 3331 and the first guide sleeve 3333 are both installed on the lower template 332, and the movable sleeve 3342 of the second guide sleeve 3334 is on the first guide sleeve 3333, so that the driving rod 3332 can drive the second guide sleeve 3334 to move in a directional manner along the trajectory of the first guide sleeve 3333, that is, the lifting and lowering of the upper template 331 can be realized.

[0043] Each of the guide members 334 includes a fixed sleeve 3341 arranged on the lower template 332, and a movable sleeve 3342 is provided outside the fixed sleeve 3341. The movable sleeve 3342 is connected to the upper template 331. When the upper template 331 is raised or lowered, the upper template 331 will drive the movable sleeve 3342 to move relative to the fixed sleeve 3341, so that the movable sleeve 3342 can move in a directional manner along the trajectory of the fixed sleeve 3341.

[0044] Furthermore, the upper template 331 has four corners, and the two driving members 333 are located on a diagonal line of the upper template 331, the two guide members 334 are located on another diagonal line of the upper template 331, and the first guide sleeve 3333 is arranged in parallel with the fixed sleeve 3341. In this way, it can be ensured that the movement direction of the movable sleeve 3342 is parallel to the movement direction of the second guide sleeve 3334, so that the upper template 331 can be moved in a directional manner relative to the lower template 332.

[0045] A first motor 311 is provided in the support base 310, and a first rotating shaft 312 is provided on a side surface of the rotating arm 320 facing the support base 310, one end of the first rotating shaft 312 is movably inserted in the support base 310, and a first gear 313 is provided on the first motor 311, and a second gear 314 meshing with the first gear 313 is installed on the first rotating shaft 312. When the first motor 311 drives the first gear 313 to rotate, the first gear 313 will drive the second gear 314 and the first rotating shaft 312 to rotate simultaneously, and the first rotating shaft 312 is connected to the rotating arm 320, and the first rotating shaft 312 is located exactly on the X-axis or Y-axis of the support base 310, so as to realize the rotation of the rotating arm 320 around the X-axis or Y-axis of the support base 310.

[0046] A second rotating shaft 321 connected to the lower template 332 is movably provided on the rotating arm 320, and a second motor 322 is provided at the lower end surface of the rotating arm 320. The second motor 322 and the second rotating shaft 321 are connected to each other through a transmission member 323. Specifically, the transmission member 323 includes a third gear (not marked in the figure) connected to the second motor 322 and a fourth gear (not marked in the figure) connected to the second rotating shaft 321. The fourth gear is meshed with the third gear. When the second motor 322 drives the third gear to rotate, the third gear will drive the fourth gear and the second rotating shaft 321 to rotate at the same time. The second rotating shaft 321 is connected to the lower template 332. The second rotating shaft 321 is located on the Z-axis of the rotating arm 320, so that the lower template 332 can rotate around the Z-axis of the rotating arm 320.

[0047] A plurality of cooling fans 324 are provided on the side of the rotating arm 320. When the upper mold and the lower mold need to be cooled, each cooling fan 324 is turned on and blows air to the upper mold and the lower mold so that the upper mold and the lower mold can be cooled quickly, thereby improving the hardness of the finished product.

[0048] like Fig.10 — Fig.13 As shown, a discharge pipe 210 is provided at the bottom end of the hopper 200, and a blocking block 220 is provided in the hopper 200 to block the discharge pipe 210. The hopper 200 is also provided with a starting member 230 for driving the blocking block 220 to move. When the automatic weighing machine 110 discharges the powder into the hopper 200, and the manipulator 120 transfers the hopper 200 to between the upper mold and the lower mold of the rotational molding machine 300, the starting member 230 drives the blocking ball to retract into the hopper 200, so that the discharge pipe 210 and the hopper 200 are in contact with each other. The interior of the hopper 200 is connected, so that the powder will fall from the hopper 200 into the lower mold through the discharge pipe 210; further, because a plurality of plug rods 221 are provided on the side of the blocking block 220 facing the interior of the hopper 200, when the starting member 230 drives the blocking ball to retract into the hopper 200, the plug rod 221 will rise with the blocking ball, so that the plug rod 221 moves in the powder pile of the hopper 200, thereby stirring the powder, so that the powder can fall smoothly from the hopper 200 to the discharge pipe 210.

[0049] The side of the block 220 facing the inside of the hopper 200 is configured to be conical. Through the configuration of this structure, the powder falling on the side of the block 220 can slide off the block 220 smoothly, avoiding the accumulation of powder on the block 220. The side of the block 220 facing the discharge pipe 210 is configured to be hemispherical, wherein the diameter of the hemispherical side of the block 220 is larger than the diameter of the discharge pipe 210, so that the block 220 can smoothly block the discharge pipe 210.

[0050] The starting member 230 includes a cross frame 231 connected to the inner wall of the hopper 200, on which a starting cylinder 232 is arranged, on which a starting rod 233 is movably arranged, and the starting rod 233 movably passes through the cross frame 231 and is connected to the blocking block 220. When working, the starting cylinder 232 drives the starting rod 233 to rise and fall. Since the blocking block 220 is connected to the starting rod 233, both ends of the cross frame 231 are connected to the inner wall of the hopper 200, so as to realize the lifting and lowering of the blocking block 220 relative to the hopper 200, that is, to realize the opening or closing of the discharge pipe 210 by the blocking block 220.

[0051] A drop block 232a is provided at one end of the starting cylinder 232 away from the cross frame 231. When the powder drifts to the top of the starting cylinder 232, that is, the powder drifts onto the drop block 232a, because the drop block 232a is hemispherical, the top surface of the starting cylinder 232 can be changed from a plane to a hemispherical surface, so that the powder drifting onto the drop block 232a can slide along the drop block 232a into the hopper 200.

[0052] A triangular plate 231a with a triangular cross section is provided on the top surface of the cross frame 231. By setting the triangular plate 231a, the top surface of the truss can be changed from a flat surface to two inclined surfaces of the triangular plate 231a, so that the powder falling onto the triangular plate 231a can slide along the inclined surfaces of the triangular plate 231a into the hopper 200.

[0053] The bottom end of the hopper 200 is configured to be conical, and through the configuration of this structure, the powder at the bottom of the hopper 200 can smoothly converge toward the discharge pipe 210 .

[0054] At least two supporting ears 240 are provided on the side of the hopper 200, and positioning holes 241 corresponding to the positioning columns are provided on the two supporting ears 240. When each positioning column is passed through the corresponding positioning hole 241, the supporting ears 240 are positioned and placed in the material rack 111, that is, the positioning installation of the material rack 111 and the hopper 200 is realized, that is, the hopper 200 is located directly below the corresponding automatic weighing machine 110.

[0055] An air hole 250 connected to the starting member 230 is provided on the side of the hopper 200, and a clamping block 260 is provided on the hopper 200 at the air hole 250. When the manipulator 120 clamps the clamping block 260, the air circuit on the manipulator 120 is connected to the air hole 250, that is, the air circuit on the manipulator 120 is connected to the starting cylinder 232 of the starting member 230 through the air hole 250. In this way, the starting cylinder 232 can be controlled by the air circuit on the manipulator 120 to drive the starting rod 233 to move.

[0056] The following is a processing technology of the utility model using the above-mentioned fully automatic rotational molding system, including:

[0057] Step S1, conveying the powder from the silo 130 to the automatic weighing machine 110 by means of a pneumatic or vertical conveyor, the automatic weighing machine 110 weighs the powder, and when the weighed powder reaches a predetermined weight, the automatic weighing machine 110 discharges the weighed powder into the hopper 200 located directly below the automatic weighing machine 110;

[0058] Step S2, the manipulator 120 grabs the hopper 200 containing the powder into the designated rotational molding machine 300. Specifically, the manipulator 120 grabs the hopper 200 between the upper mold and the lower mold;

[0059] Step S3, thereafter, the starting cylinder 232 in the hopper 200 drives the starting cylinder rod and the blocking block 220 to open, so that the powder in the hopper 200 can be smoothly put into the lower mold of the rotational molding machine 300 through the discharge pipe 210;

[0060] Step S4, when the hopper 200 has discharged all the powder stored therein, the manipulator 120 transfers the hopper 200 to the bottom of the automatic weighing machine 110, and at the same time, the two driving members 333 of the mold opening and closing assembly 330 drive the upper mold plate 331 and the upper mold to move toward the lower mold until the upper mold and the lower mold reach a predetermined gap. During this process, the upper mold and the lower mold need to be electrically heated so that the powder in the lower mold can be heated and melted. Thereafter, the rotomolding machine 300 rotates the entire mold opening and closing assembly 330 in space so that the melted powder can evenly fill the gap between the upper mold and the lower mold, thereby completing the rotomolding process of the rotomolding machine 300;

[0061] Step S5, when the rotomolding machine 300 completes the rotomolding process, each cooling fan 324 blows air to the upper mold and the lower mold to accelerate the cooling of the upper mold and the lower mold. Secondly, it can also accelerate the cooling and shaping of the finished product, that is, the powder in the rotomolding machine 300 is transformed into a finished product. After that, the driving member 333 of the rotomolding machine 300 pushes the upper mold plate 331 away from the lower mold plate 332, so that the mold opening and closing assembly 330 is opened;

[0062] Step S6: The robot arm 120 grabs the finished product and places it on the conveyor line 140 .

[0063] Through the processing technology of the above-mentioned fully automatic rotational molding system, the fully automatic processing of the fully automatic rotational molding system can be realized, which effectively reduces manual participation and avoids the staff from staying next to the rotational molding machine 300 for a long time and being affected by the high temperature of the rotational molding machine 300. Secondly, it can also improve the efficiency of the rotational molding processing of the entire fully automatic rotational molding system.

[0064] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0065] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A fully automatic rotational molding system, characterized in that: include: A base, on which a silo, an automatic weighing machine, a rotational molding machine and a conveying line are arranged; A manipulator is slidably arranged on the base, each of the silos can convey powder to the corresponding automatic weighing machine, and a hopper is arranged directly below each of the automatic weighing machines; When the robot clamps the hopper into the corresponding rotomolding machine, the hopper automatically adds the powder into the rotomolding machine. When the powder in the rotomolding machine is processed into a finished product, the robot grabs the finished product onto the conveyor line.

2. A fully automatic rotational molding system according to claim 1, characterized in that: The base is provided with a slide rail for slidingly connecting a manipulator, and the base is provided with a material rack for supporting a corresponding automatic weighing machine, and each of the hoppers is stuck in the corresponding material rack.

3. A fully automatic rotational molding system according to claim 1, characterized in that: Each of the rotational molding machines includes a support seat arranged on a base, a rotating arm is movably mounted on the support seat, a mold opening and closing assembly is movably mounted on the rotating arm, the rotating arm can rotate around the X-axis or Y-axis of the support seat, and the mold opening and closing assembly can rotate around the Z-axis of the rotating arm.

4. A fully automatic rotational molding system according to claim 3, characterized in that: The opening and closing mold assembly includes a lower mold plate movably mounted on a rotating arm, an upper mold plate movably mounted directly above the lower mold plate, a pair of driving members and a pair of guiding members are provided between the lower mold plate and the upper mold plate, the two driving members are respectively arranged at the diagonal line of the upper mold plate, and the two guiding members are respectively arranged at the other diagonal line of the upper mold plate.

5. A fully automatic rotational molding system according to claim 3, characterized in that: A first motor is provided in the support seat, a first rotating shaft is provided on a side surface of the rotating arm facing the support seat, one end of the first rotating shaft is movably inserted in the support seat, a first gear is provided on the first motor, and a second gear meshing with the first gear is installed on the first rotating shaft.

6. A fully automatic rotational molding system according to claim 3, characterized in that: A second rotating shaft connected to the lower template is movably provided on the rotating arm, a second motor is provided at the lower end surface of the rotating arm, and the second motor is connected to the second rotating shaft through a transmission member.

7. A fully automatic rotational molding system according to claim 3, characterized in that: A plurality of cooling fans are arranged on the side of the rotating arm.

8. The fully automatic rotational molding system according to claim 1, characterized in that: A discharge pipe is arranged at the bottom end of the hopper, a blocking block for blocking the discharge pipe is arranged in the hopper, a starting member for driving the blocking block to move is arranged in the hopper, and a plurality of insertion rods are arranged on one side of the blocking block facing the inside of the hopper.

9. A fully automatic rotational molding system according to claim 8, characterized in that: The starting member comprises a horizontal frame connected to the inner wall of the hopper, a starting cylinder is arranged on the horizontal frame, a starting rod is movably arranged on the starting cylinder, and the starting rod movably passes through the horizontal frame and is connected to the blocking block.

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