Electrically heated rotational moulding machine

Abstract

The application provides an electric heating rotational moulding machine, and belongs to the technical field of rotational moulding machines. The electric heating rotational moulding machine can quickly clamp a mould and automatically open or lock the mould. The electric heating rotational moulding machine comprises a base, a turnover frame, a frame cover, a fixing table, a mould plate, a first locking piece, a driving piece and a second locking piece. When clamping the mould, the frame cover is first unlocked, and then the frame cover is separated from the turnover frame through the driving piece, so that one of the mould plates can be placed in the turnover frame and locked through the first locking piece in the turnover frame. The other mould plate is transferred to the position directly below the frame cover and locked through the first locking piece connected with the frame cover. In this way, the two mould plates can be quickly clamped on the rotational moulding machine, so that the clamping efficiency of the rotational moulding machine is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rotational molding machines, and relates to an electric heating rotational molding machine. BACKGROUND

[0002] In the field of rotational molding, a mold is usually installed on a rotational molding machine by a worker through threaded fasteners, and when another mold is used, the worker needs to loosen and tighten each fastener manually. Meanwhile, the locking of the mold is generally achieved by a quick clamp, which is locked by a worker manually. The mold opening is operated manually. The above operations are time-consuming and laborious, and are not conducive to the intelligentization of the rotational molding equipment. In the existing rotational molding machines for quick clamping and unlocking of the rotational molding mold, the quick disassembly and assembly structure is complex and is not conducive to operation. SUMMARY

[0003] The application aims at the above problems existing in the prior art, and provides an electric heating rotational molding machine which can quickly clamp a mold and automatically open and lock the mold.

[0004] The application can be realized by the following technical scheme: an electric heating rotational molding machine, comprising:

[0005] a base;

[0006] a turnover frame movably installed in the base, a frame cover being detachably connected to the turnover frame, the frame cover and the turnover frame being each provided with a fixing table, each of the fixing tables being provided with a mold plate capable of generating heat, and each of the fixing tables being provided with a pair of first locking pieces for locking the corresponding mold plate;

[0007] a driving piece arranged on one side of the turnover frame, the driving piece being used to push the frame cover to move relative to the turnover frame;

[0008] a second locking piece arranged on the turnover frame, the second locking piece being used to limit the movement of the frame cover relative to the turnover frame.

[0009] In the above electric heating rotational molding machine, each of the mold plates is provided with a plurality of mold rods movably penetrating the fixing table, and one of the first locking pieces locks two of the mold rods.

[0010] In the above electric heating rotational molding machine, each of the first locking pieces comprises a first locking rod movably arranged on the fixing table and at least one locking piece, the locking piece being capable of driving the first locking rod to rotate, the first locking rod being provided with a first through hole for penetrating the corresponding mold rod, and each of the mold rods being provided with a first clamping hole for clamping the first locking rod.

[0011] In the electric heating rotational moulding machine, each locking member comprises a first cylinder body arranged on the fixed table, a first cylinder rod arranged on the first cylinder body, a first tooth surface arranged on the first cylinder rod, a first gear arranged on the first locking rod and engaged with the first tooth surface, and a limiting plate arranged on the fixed table and movably penetrating through the first cylinder rod.

[0012] In the electric heating rotational moulding machine, the turnover frame comprises a pair of frame bodies and a bottom beam, the two frame bodies are connected through the bottom beam, both ends of the frame cover are provided with movable blocks, the number of the driving members is same as that of the frame bodies, each driving member is arranged on the corresponding frame body, and the number of the second locking members is same as that of the frame bodies, each driving member is arranged on the corresponding frame body.

[0013] In the electric heating rotational moulding machine, each driving member comprises a third cylinder body connected with the frame body, and a third lever hinged with the movable block and arranged on the third cylinder body.

[0014] In the electric heating rotational moulding machine, both sides of each movable block are provided with guide rods, the side surface of each guide rod is provided with a second clamping hole, the second clamping hole can lock the corresponding second locking member, the frame body is provided with a guide block, and the guide rod movably penetrates through each guide block.

[0015] In the electric heating rotational moulding machine, each second locking member comprises a second locking rod penetrating through the corresponding frame body and a second cylinder body arranged in the frame body and used for driving the second locking rod to rotate, and the second locking rod can rotate around the central axis thereof.

[0016] In the electric heating rotational moulding machine, the second cylinder body is provided with a second cylinder rod, the second cylinder rod is provided with a second tooth surface, the second locking rod is provided with a second gear engaged with the second tooth surface, and the second locking rod is provided with a second perforation used for penetrating through the corresponding guide rod.

[0017] In the electric heating rotational moulding machine, the outer surface of each mould plate is provided with a heating member.

[0018] Compared with the prior art, the electric heating rotational moulding machine has the following beneficial effects:

[0019] 1. In the mould closing process, people only need to control the driving members to close the two mould plates, and when the two mould plates are closed, the frame cover is automatically locked by the second locking member, so that the automatic mould locking function is completed, and then the two mould plates are heated, so that the contact surface of the two mould plates can generate heat, so that the mould plates can continuously provide heat for the rotational moulding product, thereby improving the yield of the rotational moulding product.

[0020] 2、When the finished product is completed, people only need to unlock the second locking piece to the frame cover, and can control the driving piece to make the driving piece drive the frame cover to move relative to the turnover frame, that is, to separate the two templates, so that people can smoothly take out the finished product between the two templates, so as to complete the function of automatic mold opening.

[0021] 3、When clamping the mold, people first unlock the frame cover, and then separate the frame cover from the turnover frame through the driving piece, so that people can place one of the templates in the turnover frame, and lock the template through the first locking piece in the turnover frame, and then move the other template to the lower side of the frame cover, and lock the template through the first locking piece connected with the frame cover, so that the two templates can be quickly clamped on the rotational molding machine, so as to improve the clamping efficiency of the rotational molding machine.

[0022] 4、Each of the templates is provided with a heating piece on the outer surface, and a heating groove for embedding the heating piece is arranged on the outer surface of the template. In work, the heating piece generates heat and transmits the heat to the template, so that the template also generates heat, so as to improve the processing efficiency of the rotational molding product. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of a preferred embodiment of the present application.

[0024] Figure 2 is an assembly view of the fixed table, the template and the first locking piece.

[0025] Figure 3 is a structural schematic view of the first locking rod.

[0026] Figure 4 is a structural schematic view of the template.

[0027] Figure 5 is an assembly view of the frame body, the second locking piece and the driving piece.

[0028] Figure 6 is a structural schematic view of the second locking rod.

[0029] Figure 7 is a structural schematic view of the guide rod. DETAILED DESCRIPTION

[0030] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0031] As shown in Figure 1 — Figure 7 The present application is a rotational molding machine with electric heating, which comprises a base 100, a turnover frame 200, a frame cover 300, a fixed table 400, a template 500, a first locking piece 600, a driving piece 700 and a second locking piece 800.

[0032] The turnover frame 200 is movably arranged in the base 100, the turnover frame 200 is detachably connected with a frame cover 300, the turnover frame 200 and the frame cover 300 are both provided with a fixing table 400, each fixing table 400 is provided with a template 500 which can generate heat, each fixing table 400 is provided with a pair of first locking pieces 600 which are used for locking the corresponding template 500, a driving piece 700 is arranged on one side of the turnover frame 200, the driving piece 700 is used for pushing the frame cover 300 to move relative to the turnover frame 200, and a second locking piece 800 is arranged on the turnover frame 200, the second locking piece 800 is used for limiting the movement of the frame cover 300 relative to the turnover frame 200.

[0033] In the normal working state, the first locking piece 600 locks the corresponding template 500, so that the template 500, the first locking piece 600 and the fixing table 400 form an integral whole, therefore, in the mold closing process, people only need to control the driving piece 700 to fold the two templates 500, and then lock the frame cover 300 through the second locking piece 800, after that, the two templates 500 are heated to make the contact surface of the two templates 500 generate heat, so that the template 500 can continuously provide heat for the rotational molding product, thereby improving the yield of the rotational molding product.

[0034] When the finished product is completed, people only need to unlock the frame cover 300 through the second locking piece 800, and then control the driving piece 700 to make the driving piece 700 drive the frame cover 300 to move relative to the turnover frame 200, that is, separate the two templates 500, so that people can smoothly take out the finished product between the two templates 500.

[0035] When clamping the mold, people first unlock the frame cover 300, and then separate the frame cover 300 from the turnover frame 200 through the driving piece 700, so that people can place one of the templates 500 in the turnover frame 200 and lock the template 500 through the first locking piece 600 in the turnover frame 200, and then move the other template 500 to the position directly below the frame cover 300 and lock the template 500 through the first locking piece 600 connected with the frame cover 300, in this way, the two templates 500 can be quickly clamped on the rotational molding machine, thereby improving the clamping efficiency of the rotational molding machine.

[0036] As Figure 1 — Figure 4As shown, each of the mold plates 500 is provided with a plurality of mold rods 510 passing through the fixed table 400, two of the mold rods 510 are locked by a first locking piece 600, each of the first locking pieces 600 comprises a first locking rod 610 movably arranged on the fixed table 400 and at least one locking member 620, the locking member 620 can drive the first locking rod 610 to rotate, the first locking rod 610 is provided with a first perforation 611 for passing through the corresponding mold rod 510, each of the mold rods 510 is provided with a first clamping hole 511 for clamping the first locking rod 610, wherein each of the first clamping holes 511 faces the corresponding first locking rod 610, and the shape of the projection of each of the mold rods 510 on the first locking rod 610 is the cross-sectional shape of the first perforation 611, so that the mold rod 510 can pass through the corresponding first locking rod 610 smoothly, when the first locking piece 600 is used to lock the mold plate 500, people need to control the locking member 620 to drive the first locking rod 610 to rotate around its own central axis, so that the mold rod 510 passing through the fixed table 400 can pass through the first locking rod 610 through the first perforation 611, that is, the first locking rod 610 does not block the mold rod 510 during the lifting process of the mold rod 510 relative to the fixed table 400, when the mold rod 510 passes through the fixed table 400 a certain displacement, that is, the first locking rod 610 and the first clamping hole 511 are located in the same plane, the locking member 620 drives the first locking rod 610 to rotate, so that part of the first locking rod 610 is clamped in the first clamping hole 511, in this way, when people remove the supporting force acting on the mold plate 500, the mold rod 510 will be buckled on the first locking rod 610 through the first clamping hole 511, so that the mold plate 500, the fixed table 400 and the first locking rod 610 form an integral whole, so that when people move the frame cover 300, the frame cover 300 will drive the corresponding mold plate 500 to lift.

[0037] Each of the locking members 620 comprises a first cylinder 621 arranged on the fixed table 400, the first cylinder 621 is provided with a first cylinder rod 622, the first cylinder rod 622 is provided with a first tooth surface 622a, the first locking rod 610 is provided with a first gear 612 engaged with the first tooth surface 622a, the fixed table 400 is provided with a limiting plate 410 movably penetrating through the first cylinder rod 622, when the locking member 620 drives the first locking rod 610 to rotate, people need to control the first cylinder 621 to push the first cylinder rod 622 out or retract, because the first gear 612 is engaged with the first tooth surface 622a, the first gear 612 is installed on the first locking rod 610, the two ends of the first locking rod 610 are movably installed on the fixed table 400, so that the first gear 612 rotates synchronously with the first locking rod 610, and the first perforation 611 is arranged on the side of the first locking rod 610, so that the first perforation 611 changes the direction with the rotation of the first locking rod 610, that is, the first perforation 611 can face the mold rod 510 or away from the mold rod 510.

[0038] As shown in Figure 1 and Figure 5 — Figure 7 The turnover frame 200 comprises a pair of frames 210 and a bottom beam 220, the two frames 210 are connected through the bottom beam 220, the two ends of the frame cover 300 are provided with movable blocks 310, the number of the driving members 700 is the same as that of the frames 210, and each driving member 700 is arranged on the corresponding frame 210, and the number of the second locking members 800 is the same as that of the frames 210, and each driving member 700 is arranged on the corresponding frame 210.

[0039] Further, each of the driving members 700 comprises a third cylinder 710 connected with the frame 210, the third cylinder 710 is provided with a third lever 720 hinged with the movable block 310, when the third cylinder 710 drives the third lever to move, because the third lever is hinged with the movable block 310, the movable block 310 is connected with the frame cover 300, so that the movable block 310 and the frame cover 300 ascend or descend synchronously, that is, the frame cover 300 can ascend or descend relative to the turnover frame 200.

[0040] The two sides of each of the movable blocks 310 are provided with guide rods 311, when the movable block 310 ascends or descends relative to the turnover frame 200, because the guide rods 311 are connected with the movable block 310, the guide rods 311 also ascend or descend with the movable block 310, because the frame 210 is provided with guide blocks 211, the guide rods 311 movably penetrate through the guide blocks 211, so that the movable block 310 always moves along the track of the guide rods 311 during the ascending or descending process.

[0041] The side surface of each guiding rod 311 is provided with a second clamping hole 311a which can lock a corresponding second locking piece 800. Each second locking piece 800 comprises a second locking rod 810 which passes through the corresponding frame body 210 and a second cylinder 820 which is arranged in the frame body 210 and is used to drive the second locking rod 810 to rotate. The second locking rod 810 can rotate around its central axis. The second locking rod 810 is provided with a second perforation 811 which is used to pass through the corresponding guiding rod 311. Each second clamping hole 311a is directed to the corresponding second locking rod 810. The shape of the projection of each guiding rod 311 on the second locking rod 810 is the cross-sectional shape of the second perforation 811, so that the guiding rod 311 can pass through the corresponding second locking rod 810 smoothly. When the second locking piece 800 needs to lock the movable block 310 and the frame cover 300, people need to control the second cylinder 820 so that the second cylinder 820 drives the second locking rod 810 to rotate around its central axis, so that the guiding rod 311 can pass through the second perforation 811 and pass through the second locking rod 810. That is, during the lifting process of the movable block 310 and the frame cover 300 relative to the frame body 210, the second locking rod 810 does not block the guiding rod 311. Therefore, the driving piece 700 can drive the movable block 310 and the frame cover 300 to lift smoothly to realize the separation of the frame cover 300 and the turnover frame 200. When the rotomolding product needs to be processed, the third cylinder 710 needs to be controlled first so that the third cylinder rod is retracted into the third cylinder body 710. When the two mold plates 500 abut against each other, the second clamping hole 311a and the second locking rod 810 are located in the same plane. At this time, the third cylinder 710 stops working, the second cylinder 820 drives the second locking rod 810 to rotate, so that part of the second locking rod 810 is clamped into the second clamping hole 311a. Therefore, the guiding rod 311 is buckled on the second locking rod 810 through the second clamping hole 311a, so that the frame cover 300 and the turnover frame 200 do not move out of position during the processing of the rotomolding machine, that is, the separation of the two mold plates 500 is avoided, and the stable working of the rotomolding machine is ensured.

[0042] The second cylinder 820 is provided with a second cylinder rod 821 which is provided with a second tooth surface 821a. The second locking rod 810 is provided with a second gear 812 which is engaged with the second tooth surface 821a. During working, the second cylinder 820 drives the second cylinder rod 821 to move. Because the second gear 812 is engaged with the second tooth surface 821a and is installed on the second locking rod 810, the second cylinder rod 821 can drive the second gear 812 and the second locking rod 810 to rotate around the central axis of the second locking rod 810, so as to change the direction of the second perforation 811.

[0043] The outer surface of each of the molds 500 is provided with a heating element 520, and the heating element 520 can be an electric heating wire, and a heating groove (not labeled in the figure) for embedding the heating element is arranged on the outer surface of the mold, and when installing, the heating element needs to be embedded into the corresponding heating groove, and when working, the heating element generates heat and transmits the heat to the mold, so that the mold also generates heat, thereby improving the processing efficiency of the rotational molding product.

[0044] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, the descriptions such as "first", "second", "one" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0046] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

Claims

1. An electrically heated rotational moulding machine characterised in that, The utility model relates to a frame turnover device, including: a base; a turnover frame movably mounted in the base, a frame cover being detachably connected to the turnover frame, each of the turnover frame and the frame cover being provided with a fixing table, each of the fixing tables being provided with a template capable of generating heat, each of the fixing tables being provided with a pair of first locking members for locking the corresponding template; a driving member provided on one side of the turnover frame, the driving member being used to push the frame cover to move relative to the turnover frame; a second locking member provided on the turnover frame, the second locking member being used to limit the movement of the frame cover relative to the turnover frame; each of the templates being provided with a plurality of template rods movably penetrating the fixing table, one of the first locking members locking two of the template rods; each of the first locking members including a first locking rod movably provided on the fixing table and at least one locking member, the locking member being capable of driving the first locking rod to rotate, the first locking rod being provided with a first perforation for penetrating the corresponding template rod, each of the template rods being provided with a first clamping hole for clamping the first locking rod; each of the locking members including a first cylinder body provided on the fixing table, the first cylinder body being provided with a first cylinder rod, the first cylinder rod being provided with a first tooth surface, the first locking rod being provided with a first gear wheel engaged with the first tooth surface, the fixing table being provided with a limiting plate movably penetrating the first cylinder rod; the outer surface of each of the templates being provided with a heating member.

2. An electrically heated rotational moulding machine according to claim 1, characterised in that The turnover frame includes a pair of frame bodies and a bottom beam, the two frame bodies being connected through the bottom beam, the frame cover being provided with a movable block at each end, the number of the driving members being the same as that of the frame bodies and each of the driving members being provided on the corresponding frame body, the number of the second locking members being the same as that of the frame bodies and each of the driving members being provided on the corresponding frame body.

3. An electrically heated rotational moulding machine according to claim 2, characterised in that Each of the driving members includes a third cylinder body connected with the frame body, the third cylinder body being provided with a third lever hinged with the movable block.

4. An electrically heated rotational moulding machine according to claim 2, characterised in that Each of the movable blocks is provided with a guide rod at each side, each of the guide rods being provided with a second clamping hole at the side surface, the second clamping hole being capable of locking the corresponding second locking member, the frame body being provided with a guide block, the guide rod movably penetrating each of the guide blocks.

5. An electrically heated rotational moulding machine according to claim 4, characterised in that Each of the second locking members includes a second locking rod penetrating the corresponding frame body and a second cylinder body provided in the frame body and used to drive the second locking rod to rotate, the second locking rod being capable of rotating about the central axis thereof.

6. An electrically heated rotational moulding machine according to claim 5, characterised in that The second cylinder body is provided with a second cylinder rod, the second cylinder rod being provided with a second tooth surface, the second locking rod being provided with a second gear wheel engaged with the second tooth surface, the second locking rod being provided with a second perforation for penetrating the corresponding guide rod.

Images