CN218948234U

CN218948234U - Automatic opening and closing device of rotational molding die

Info

Publication number: CN218948234U
Application number: CN202223096236.9U
Authority: CN
Inventors: 郑中才; 王鹏; 王莎莎; 王德和; 彭祥满
Original assignee: Shanghai Jiechuang Mould Manufacturing Co ltd
Current assignee: Shanghai Jiechuang Mould Manufacturing Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-05-02
Anticipated expiration: 2032-11-21

Abstract

The application relates to the field of rotational moulding moulds, discloses an automatic device that opens and shuts of rotational moulding mould, and it includes the unable adjustment base of user's fixed mould, and the unable adjustment base upside is provided with the tight frame that supports that is used for supporting tight end cover, supports the week side rotation of tight frame and is connected with a plurality of jack catchs, and the jack catchs are used for embracing the mould or embracing the tight fixed base, support and be provided with the driving piece that is used for driving the jack catchs on the tight frame, be provided with first fixing device and the second fixing device that is used for fixed mould on the unable adjustment base. This application has the effect that improves the convenience of installation and dismantlement mould.

Description

Automatic opening and closing device of rotational molding die

Technical Field

The application relates to the field of rotational molding dies, in particular to an automatic opening and closing device of a rotational molding die.

Background

At present, a thermoplastic plastic hollow molding method is rotational molding. The method comprises three types of rotational molding of dry powder molding of PE and the like, slush molding of PVC paste resin molding and rotational molding of liquid monomer polymerization molding. The existing rotational molding die comprises a die, a die cavity for molding and manufacturing products is formed in the die, a feed inlet communicated with the front of the die is formed in the top of the die, and an end cover for sealing the feed inlet is fixed at the top of the die.

In the related art, a rotational molding die fixing device comprises a fixing frame body, wherein a cavity for placing a die is formed in the fixing frame body, a sealing plate is arranged on the fixing frame body, an end cover is used for an end cover at the top of the die, and a fixing bolt is inserted on the end cover and connected with the fixing frame body in a threaded fit manner. During operation, the powdered or liquid polymer is set inside the mold, closed with the sealing board, the fixing frame and the Xinin revolve around the rotation, the molten polymer is deposited onto the inner wall of the mold, and finally cooled to obtain the product.

Aiming at the related technology, the inventor considers that the prior art adopts the fixing bolt to directly fix the sealing plate so as to achieve the purpose of the die, but the fixing bolt is used, no matter the fixing bolt is installed or detached, the operation of staff is not utilized, the efficiency is lower, the convenience of die fixing is reduced, and the improvement is needed.

Disclosure of Invention

In order to improve the convenience of installing and dismantling the mould, the application provides an automatic device that opens and shuts of rotational moulding mould.

The application provides an automatic device that opens and shuts of rotational moulding mould adopts following technical scheme:

the utility model provides an automatic device that opens and shuts of rotational moulding mould, includes the unable adjustment base of user's fixed mould, unable adjustment base upside is provided with the tight frame that supports that is used for supporting tight end cover, the week side rotation that supports tight frame is connected with a plurality of jack catch, the jack catch is used for holding tightly the mould or holds tightly unable adjustment base, support and be provided with on the tight frame and be used for the drive the driving piece of jack catch, be provided with first fixing device and the second fixing device that is used for fixed mould on the unable adjustment base.

By adopting the technical scheme, when the die is in operation, the die is placed on the fixed base, the die is fixed by the first fixing device and the second fixing device, the abutting frame is abutted on the end cover, and the die or the fixed base is tightly held by the clamping jaw, so that the end cover is fixed; the adoption of the design can drive the claw to prop against the tight frame to tightly prop against the end cover through the driving piece, the purpose of fixing the end cover is achieved, the driving piece is used for directly controlling the claw, the inconvenience of manual operation is reduced, the fixing speed of the end cover is improved, and therefore the convenience of installing and detaching the end cover is improved.

Preferably, the second fixing device comprises second side frames arranged on two sides of the die, the two second side frames are symmetrically arranged, the two second side frames are slidably connected to the fixing base, and two second driving cylinders for driving the two second side frames to move are arranged on the fixing base.

Through adopting above-mentioned technical scheme, use the second side bearer that two symmetries set up can be with the mould clamp better fixed, improve the convenience and the stability of fixed mould, when using the second drive cylinder, drive two second drive cylinders in step, can make the mould can be fixed to the center under the effect of two second side bearer, reduced the centrifugal force that the mould produced when rotating to reduced the pressure of mould to the second side bearer, improved the fixed stability of mould.

Preferably, a plurality of guide rods are arranged at the bottom of the second side frame, the guide rods are arranged along the sliding direction of the second side frame, a plurality of supporting guide wheels are arranged on the fixed base, and the guide rods are arranged on the supporting guide wheels.

Through adopting above-mentioned technical scheme, use support guide pulley and guide arm cooperation can make the second side bearer slide more stable, improve the convenience that the second side bearer used.

Preferably, the guide arm one side is provided with the piece that slides, the spacing hole has been seted up on the piece that slides, be provided with the fixed block on the unable adjustment base, the spliced eye has been seted up to fixed block one side, the spliced eye interpolation has the locking lever, the locking lever with spacing hole grafting cooperation, be provided with the dog on the spliced eye inner wall, be provided with the spacing ring on the locking lever, the cover is equipped with the butt spring on the locking lever, the butt spring both ends respectively the butt in spacing ring with the both sides that the dog is close to each other, the butt spring is used for the drive the locking lever butt slide.

Through adopting above-mentioned technical scheme, limit the slip position of second side bearer through locking lever and spacing hole cooperation, avoid the second side bearer to roll off on unable adjustment base, improve the stability of second side bearer use.

Preferably, a limiting block is detachably connected to one end, away from the second side frame, of the guide rod, and the limiting block is used for limiting the sliding distance of the guide rod.

Through adopting above-mentioned technical scheme, use stopper and support the guide pulley cooperation to carry out the slip distance of restriction guide arm, prevent that the guide arm from sliding out on the support guide pulley, improve the stability that the guide arm used.

Preferably, the first fixing device comprises two first side frames rotatably connected to the fixing base, the two first side frames are symmetrically arranged on two sides of the die respectively, and the fixing base is rotatably provided with two first driving cylinders for driving the first side frames.

Through adopting above-mentioned technical scheme, use the first side bearer that two symmetries set up can support fastening cover half mould, and when the position that the mould placed has the deviation, can make the mould remove to unable adjustment base's center under the extrusion of first side bearer, ensure that the mould is located the position at center, reduce the centrifugal force that produces when the mould rotates to can make first side bearer can fix the mould more steadily.

Preferably, a plurality of connecting pipes are arranged on the abutting frame, inserting connection rods are arranged on the connecting pipes, inserting seats are arranged on the first side frame and the second side frame, inserting holes are formed in the inserting seats along the vertical direction, and the inserting connection rods and the inserting holes are coaxially arranged.

Through adopting above-mentioned technical scheme, adopt spliced eye and peg graft pole cooperation, can make to support tight frame and can dock more accurately, improve to support the fixed stability of tight frame to ensure the fixed firmness of end cover.

Preferably, the connecting pipe bottom is provided with the spliced pole, the spliced pole with the spliced pole grafting cooperation, the spliced pole has seted up the mounting hole along the axial, the spliced pole peg graft in the mounting hole, the spliced pole outer wall peg graft has the locating pin, the locating pin runs through the spliced pole sets up, the spliced pole is close to one side integrated into one piece of connecting pipe has the butt spring, the butt spring keep away from the one end butt of spliced pole in on the connecting pipe.

Through adopting above-mentioned technical scheme, when the spliced pole inserts the spliced eye, peg graft in border position when the spliced pole, can play the effect of buffering through using the butt spring, reduce spliced pole and produce the damage to the spliced seat.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the claw is driven by the driving piece to tightly prop against the abutting rack on the end cover, so that the purpose of fixing the end cover is achieved, the claw is directly controlled by the driving piece, the inconvenience of manual operation is reduced, the fixing speed of the end cover is improved, and the convenience of installing and detaching the end cover is improved;

2. the two second side frames are driven by the second driving air cylinder, so that the die can be fixed, and when the two second driving air cylinders are synchronously driven, the die can be fixed towards the center under the action of the two second side frames, so that the centrifugal force generated when the die rotates is reduced, the pressure of the die on the second side frames is reduced, and the stability of die fixation is improved;

3. the first side frame is driven to clamp the die through the first driving air cylinder, when the deviation exists in the position where the die is placed, the die can be moved to the center of the fixed base under the extrusion of the first side frame, the die is ensured to be positioned at the center, the centrifugal force generated during the rotation of the die is reduced, and therefore the die can be fixed more stably by the first side frame.

Drawings

Fig. 1 is a schematic structural view of an automatic opening and closing device of a rotational molding die according to an embodiment of the application.

Fig. 2 is an enlarged schematic view of the portion a in fig. 1.

FIG. 3 is a cross-sectional view of an embodiment of the present application highlighting a docking rod.

Reference numerals: 1. a fixed base; 2. a second side frame; 3. a second driving cylinder; 4. abutting against the guide wheel; 5. a guide rod; 6. supporting a guide wheel; 7. a first side frame; 8. a first driving cylinder; 9. a mold; 10. a claw; 11. a tightening frame; 12. a driving member; 13. a connecting pipe; 14. a contact spring; 15. a plug-in column; 16. a socket; 17. a positioning pin; 18. a connecting rod; 19. a rotating seat; 20. a plug hole; 21. a limiting block; 22. inserting a connecting rod; 23. and (5) mounting holes.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses an automatic opening and closing device of a rotational molding die.

Referring to fig. 1 and 2, an automatic rotational molding die opening and closing device comprises a fixed base 1 for fixing a rectangular die 9, a propping frame 11 for propping against an end cover is installed on the upper side of the fixed base 1, the propping frame 11 is composed of a plurality of square tubes and forms a rectangular structure, a plurality of clamping claws 10 are rotationally connected to the shaft side of the propping frame 11, three clamping claws 10 are respectively arranged on four sides of the propping frame 11, a connecting rod 18 is fixed between the three clamping claws 10, a symmetrically arranged rotating seat 19 is fixed on the peripheral side of the propping frame 11, and the rotating rod is rotationally connected in the rotating seat 19. The clamping jaw 10 is L-shaped, and one end of the clamping jaw 10, which is far away from the abutting frame 11, is clamped on the side wall of the die 9 or on the fixed base 1, so that the abutting frame 11 is fixed. A driving piece 12 for driving the clamping jaw 10 is rotatably connected to the abutting frame 11, and the driving piece 12 is a driving cylinder. The fixing base 1 is also provided with a first fixing device and a second fixing device for fixing the die 9.

By adopting the design, the claw 10 is driven by the driving piece 12 to hold the die 9 or the fixed base 1 tightly, so that the purpose of fixing the end cover is achieved, the working efficiency of fixing the end cover by a worker can be improved, the convenience of installing and dismantling the die 9 is improved, the contact between the worker and an automatic opening and closing device is reduced, and the safety of installing and dismantling the end cover is improved.

Referring to fig. 1 and 2, the second fixing device includes a second side frame 2 slidingly connected to two sides of a mold 9, the second side frame 2 is a rectangular frame formed by a plurality of square tubes, the two second side frames 2 are symmetrically arranged, the second side frames 2 are slidingly connected to a fixing base 1, two guide rods 5 are fixed to the bottom of the second side frame 2, the guide rods 5 are annular rods, the guide rods 5 are fixed along the sliding direction of the second side frame 2, a plurality of supporting guide wheels 6 are arranged on the fixing base 1, the guide rods 5 move on the supporting guide wheels 6, the two supporting guide wheels 6 are in a group and are all arranged at the bottom of the guide rods 5, an abutting guide wheel 4 is further fixed to the fixing base 1 and is arranged at the upper end of the guide rods 5, the abutting guide wheels 4 are located at the middle positions of the two supporting guide wheels 6, the guide rods 5 are clamped in a matched mode through the supporting guide wheels 6 and the abutting guide wheels 4, accordingly the purpose of enclasping the guide rods 5 can be achieved, one ends of the guide rods 5 far away from the second side frames are connected with limiting blocks 21 and the limiting the moving distance of the guide rods 5 through bolts, the limiting blocks 21 are annular, and the guide rods 5 can move more stably. A second driving cylinder 3 for driving the two second side frames 2 to move is fixed on the fixed base 1.

By adopting the design, the two second driving cylinders 3 are contracted, so that the two second side frames 2 can clamp the die 9, and the purpose of fixing the die 9 is achieved; when the die 9 is used, the second driving air cylinders 3 are synchronously driven, so that the two second driving air cylinders 3 can synchronously shrink, the die 9 can be better positioned at the center position when being fixed, the centrifugal force generated when the die 9 rotates is reduced, and the die 9 can be fixed more stably.

Referring to fig. 1 and 2, the first fixing device includes two first side frames 7 rotatably connected to the fixing base 1, the first side frames 7 are rectangular frames composed of a plurality of square tubes, the two first side frames 7 are symmetrically installed on two sides of the mold 9, the side surfaces of the first side frames 7 and the side surfaces of the second side frames 2 are perpendicular to each other, and the fixing base 1 is rotatably connected with two first driving cylinders 8 for driving the first side frames 7.

By adopting the design, the die 9 can be fixed through the two rotating first side frames 7, the die 9 can be clamped, the die 9 can be moved towards the center of the fixed base 1, the die 9 can be fixed at the center position, and the centrifugal force generated when the die 9 rotates is reduced, so that the die 9 can be fixed more stably.

Referring to fig. 1 and 3, a connecting pipe 13 is fixed on a abutting frame 11, the connecting pipe 13 is a square pipe, a plug rod 22 is plugged on the connecting pipe 13, a nut is connected to the upper end of the plug rod 22 in a threaded fit manner, a plug post 15 is fixed at the bottom of the connecting pipe 13, the plug post 15 is cylindrical, a mounting hole 23 is formed in the upper side of the plug post 15, the mounting hole 23 is plugged with the plug rod 22, a positioning pin 17 is plugged on the outer wall of the plug post 15 in the radial direction, the positioning pin 17 penetrates through the connecting rod 22, one side, close to the connecting pipe 13, of the plug post 15 is integrally formed with a abutting spring 14, one end, far away from the connecting pipe 13, of the abutting spring 14 is abutted to the bottom of the connecting pipe 13, plug seats 16 are respectively formed on a first side frame 7 and a second side frame 2, and plug holes 20 matched with the plug post 15 are formed in the plug seats 16.

The adoption of the design can enable the abutting frame 11 to be more accurately fixed, so that the clamping jaw 10 can be fixed more stably, the end cover can be fixed more firmly, and the stability of the abutting frame 11 is improved.

The implementation principle of the automatic opening and closing device of the rotational molding die is as follows: during operation, a worker places a powdery or liquid polymer in the die 9, covers the end cover on the die 9, clamps and fixes the die 9 through the first side frame 7 and the second side frame 2, tightly abuts against the end cover, clamps the end cover through the clamping jaw 10, and accordingly, the end cover is fixed, and then rotates and heats later, so that manufacturing is completed. By adopting the design, the end cover is fixed through the cooperation of the driving piece 12 and the clamping jaw 10, the inconvenience of manual operation can be reduced, the fixing speed of the end cover is improved, and the efficiency of installing and detaching the end cover is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An automatic device that opens and shuts of rotational moulding mould which characterized in that: including unable adjustment base (1) of user fixed mould (9), unable adjustment base (1) upside is provided with supports tight frame (11) that are used for supporting tight end cover, the week side rotation of supporting tight frame (11) is connected with a plurality of jack catchs (10), jack catchs (10) are used for holding tight mould (9) or hold tightly unable adjustment base (1), be provided with on supporting tight frame (11) and be used for the drive piece (12) of jack catchs (10), be provided with first fixing device and the second fixing device that are used for fixed mould (9) on unable adjustment base (1).

2. The automatic opening and closing device for rotational molding die according to claim 1, wherein: the second fixing device comprises second side frames (2) arranged on two sides of the die (9), the two second side frames (2) are symmetrically arranged, the two second side frames (2) are slidably connected to the fixing base (1), and two second driving cylinders (3) used for driving the two second side frames (2) to move are arranged on the fixing base (1).

3. The automatic opening and closing device for rotational molding die according to claim 2, wherein: the novel sliding guide device is characterized in that a plurality of guide rods (5) are arranged at the bottom of the second side frame (2), the guide rods (5) are arranged along the sliding direction of the second side frame (2), a plurality of supporting guide wheels (6) are arranged on the fixed base (1), and the guide rods (5) are arranged on the supporting guide wheels (6).

4. A rotomolding die automatic opening and closing apparatus as recited in claim 3, wherein: the fixed base (1) is provided with an abutting guide wheel (4), the abutting guide wheel (4) is arranged on the upper side of the guide rod (5), and the abutting guide wheel (4) and the supporting guide wheel (6) are matched to clamp the guide rod (5).

5. The automatic opening and closing device for rotational molding die according to claim 4, wherein: one end of the guide rod (5) far away from the second side frame (2) is detachably connected with a limiting block (21), and the limiting block (21) is used for limiting the sliding distance of the guide rod (5).

6. The automatic opening and closing device for rotational molding die according to claim 2, wherein: the first fixing device comprises two first side frames (7) which are rotationally connected to the fixing base (1), the two first side frames (7) are symmetrically arranged on two sides of the die (9) respectively, and two first driving cylinders (8) used for driving the first side frames (7) are rotationally arranged on the fixing base (1).

7. The automatic opening and closing device for rotational molding die according to claim 6, wherein: be provided with a plurality of connecting pipes (13) on supporting tight frame (11), be provided with plug rod (22) on connecting pipe (13), first side frame (7) with all be provided with socket (16) on second side frame (2), socket (16) have seted up spliced eye (20) along vertical direction, plug rod (22) with spliced eye (20) coaxial setting.

8. The automatic opening and closing device for rotational molding die according to claim 7, wherein: the utility model discloses a connecting pipe, including connecting pipe (13), spliced pole (15) with spliced pole (20) grafting cooperation, spliced pole (15) have seted up mounting hole (23) along the axial, spliced pole (22) peg graft in mounting hole (23), spliced pole (15) outer wall peg graft have locating pin (17), locating pin (17) run through spliced pole (22) set up, spliced pole (15) are close to one side integrated into one piece of connecting pipe (13) has butt spring (14), butt spring (14) keep away from one end butt of spliced pole (15) in on connecting pipe (13).