CN218660119U

CN218660119U - Mold opening device

Info

Publication number: CN218660119U
Application number: CN202223020695.9U
Authority: CN
Inventors: 王晓礼; 盛野; 孙俊太; 王洋; 周明锯; 谭浩鹏
Original assignee: Qingdao Rototech Yili Automobile Plastic Product Co ltd; Wuxi Yili Environmental Protection Technology Co Ltd; Hebei Yili Technology Co Ltd
Current assignee: Qingdao Rototech Yili Automobile Plastic Product Co ltd; Wuxi Yili Environmental Protection Technology Co Ltd; Hebei Yili Technology Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-21
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to the technical field of rotational molding dies, in particular to a die sinking device, which comprises a supporting frame, a lower supporting beam, an installation beam, an upper supporting beam, two linear driving devices and an installation frame; two lower supporting beams are fixedly connected to two sides of the supporting frame; the two mounting beams are fixedly connected between the two lower supporting beams in parallel and are fixedly connected with the lower die through a first connecting column; the two upper supporting beams are fixedly connected to the upper end of the supporting frame and are parallel to each other; the two linear driving devices are fixedly connected between the two upper supporting beams through the cylinder body fixing seat; the mounting frame is fixedly connected with the driving ends of the two linear driving devices and fixedly connected with the upper die through a plurality of second connecting columns. The utility model realizes the up-and-down movement of the upper die through the linear driving device, ensures the balance of the die opening and closing of the rotational molding die, reduces the damage to the die to the maximum extent, and prolongs the service life of the die; the utility model discloses degree of automation is higher, has practiced thrift manufacturing cost, has improved production efficiency.

Description

Mold opening device

Technical Field

The utility model relates to a rotational moulding forming die technical field, concretely relates to mold opening device.

Background

Rotational molding, also known as rotational molding, rotational molding and the like, is a thermoplastic hollow molding method. The method is that plastic raw material is added into a mould, then the mould is continuously rotated along two vertical shafts and heated, the plastic raw material in the mould is gradually and uniformly coated and fused on the whole surface of a mould cavity under the action of gravity and heat energy, and the plastic raw material is formed into a required shape and then is cooled and shaped to form the product.

In the prior art, when a rotational molding die is opened, the die is opened mainly by a lifting hook of a travelling crane, the lifting hook of the travelling crane needs to be manually operated in the whole process, the operation direction of the lifting hook needs to be constantly noticed to ensure die opening balance, otherwise, the rotational molding die is blocked when being opened, and the die opening mode is easy to damage the die and has long operation time; simultaneously, except the personnel that need operate the driving, still need extra personnel to hold the cope match-plate pattern of opening in order to guarantee that the mould is balanced to be opened, increased the human cost.

In conclusion, the traditional mold opening mode of the rotational molding mold has the disadvantages of long operation time, low production efficiency, need of common operation of multiple persons, increased production cost and extremely easy damage to the mold during the mold opening process.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a mold opening device to solve the above problems.

The technical scheme of the utility model as follows:

a mold opening device is characterized by comprising:

the supporting frame is fixedly connected to the rotational molding machine;

the two lower supporting beams are respectively fixedly connected to two sides of the supporting frame and arranged along the width direction of the supporting frame;

the mounting beam is fixedly connected between the two lower supporting beams; the mounting beam is vertically and upwards fixedly connected with a plurality of first connecting columns used for connecting a lower die;

the two upper supporting beams are fixedly connected to the upper end of the supporting frame in parallel and are arranged along the length direction of the supporting frame;

the two linear driving devices are respectively and fixedly connected between the two upper supporting beams vertically and downwards through the cylinder body fixing seat;

the mounting rack is fixedly arranged on the driving ends of the two linear driving devices, and the mounting rack can realize vertical linear motion through the linear driving devices; and the mounting rack is vertically and downwards fixedly connected with a plurality of second connecting columns used for connecting an upper die.

Preferably, the linear driving device is any one of an air cylinder and an oil cylinder.

Preferably, the device also comprises two guide pillar connecting plates; the two guide pillar connecting plates are fixedly connected to the upper end of the supporting frame and are positioned between the two upper supporting beams; and a stepped hole is formed in the guide pillar connecting plate.

Preferably, a guide post is inserted into the stepped hole; the upper end of the guide pillar is fixedly connected with the guide pillar connecting plate through a guide pillar pressing plate.

Preferably, the two side ends of the mounting rack are respectively provided with a connecting block, and the connecting blocks are provided with through holes; a guide sleeve is fixedly connected in the through hole, and the guide pillar is connected in the guide sleeve in a sliding mode.

Preferably, the reinforcing frame is fixedly connected to the lower end face of the mounting beam and connected with the supporting frame.

According to the technical scheme, compared with the prior art, the invention has the following advantages:

the utility model realizes the vertical up-and-down movement of the upper mould through two linear driving devices which synchronously move to complete the actions of mould opening and mould closing, thus ensuring the balance of mould opening and mould closing of the rotational moulding mould, reducing the damage to the mould to the maximum extent and prolonging the service life of the mould; the mould opening and closing actions can be completed by only one operator, the automation degree is high, the production cost is saved, and the production efficiency is improved.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the utility model in the open state;

fig. 3 is a half sectional view of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at A;

fig. 5 is an enlarged view of fig. 3 at B.

The mark in the figure is:

1. supporting frame 2, lower supporting beam 3, mounting beam 4 and lower die

5. First connecting column 6, upper supporting beam 7, linear driving device 8 and cylinder body fixing seat

9. Mounting rack 10, upper die 11, second connecting column 12 and guide column connecting plate

13. Guide post 14, guide post pressing plate 15, connecting block 16 and guide sleeve

17. Reinforcing frame 18, lock nut

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention to be solved clearer, the present invention is further explained with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

It is to be understood that the terms "upper end surface, top end, left and right ends, left side, right side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 5, the utility model relates to a mold opening device for the die sinking and the mould closing of electrical heating rotational moulding mould, including braced frame 1, braced frame 2, mounting bracket 9, upper support beam 6, linear drive 7 and mounting bracket 9.

As shown in fig. 3, the supporting frame 1 is composed of a rectangular frame and inverted U-shaped frames vertically fixed on the left and right sides of the rectangular bottom frame, and the rectangular frame of the supporting frame 1 is fixed on the rotational molding machine through bolts;

as shown in fig. 1, two support frames 2 are respectively and fixedly connected to two inverted U-shaped frames of the support frame 1, and are horizontally arranged along the width direction of the support frame 1, and the horizontal height of the two support frames 2 from the rectangular frame is determined according to the shape of the rotational molding die.

As shown in fig. 2, the two mounting beams 3 are designed into an S shape according to the shape of the rotational molding die; the two mounting beams 3 are horizontally arranged between the two supporting frames 2 along the length direction of the supporting frame 1, and the two mounting beams 3 are arranged in parallel; three first connecting columns 5 for connecting a lower die 4 are vertically arranged on each mounting beam 3, and the height and the position of each first connecting column 5 on the mounting beam 3 are adaptively arranged according to the specific shape of the lower die 4; each first connecting column 5 is provided with a bolt hole, and the lower die 4 is fixedly connected in a connecting mode of screwing a bolt hole through a bolt.

As shown in fig. 1, the upper support beams 6 are two in number, are fixedly connected in parallel between the two inverted U-shaped frames of the support frame 1, are positioned at the upper end parts of the inverted U-shaped frames, and are arranged along the length direction of the support beam; the upper support beam 6 is located above the support frame 2.

As shown in fig. 3, the two linear driving devices 7 are either air cylinders or oil cylinders, and the air cylinders are selected in the embodiment; each cylinder body fixing seat 8 consists of two plates, and through holes are formed in the plates; the two plates are fixedly connected between the two upper supporting beams 6 through bolts and are respectively positioned on the upper end surface and the lower end surface of the upper supporting beam 6; the two cylinder body fixing seats 8 are respectively positioned at the left side and the right side of the upper supporting beam 6; two cylinders are respectively vertically installed downwards in two cylinder body fixing seats 8, the piston rod end of each cylinder is arranged downwards, and the lower end face of each plate extends out of the through hole of each plate.

As shown in fig. 1, the mounting frame 9 is a rectangular frame; as shown in fig. 3, the left and right sides of the cylinder are respectively provided with a through hole, and the piston rod ends of the two cylinders are respectively inserted into the left and right through holes of the mounting frame 9 and fastened by the locking nuts 18. As shown in fig. 1, six second connecting columns 11 for connecting to the upper mold 10 are provided on the mounting frame 9, and the height and position of the second connecting columns 11 on the mounting frame 9 are adaptively set according to the specific shape of the upper mold 10; each second connecting column 11 is provided with a bolt hole, and the upper die 10 is fixedly connected in a connecting mode that bolts are screwed in the bolt holes.

The upper and lower displacements of the mounting frame 9 are driven by the synchronous extension and retraction of the piston rod ends of the two cylinders, and the upper and lower displacements of the upper die 10 are further driven, so that the die opening and closing of the rotational molding die are completed.

As shown in fig. 3, the left and right ends of the mounting frame 9 are respectively provided with a connecting block 15; as shown in fig. 5, a through hole penetrating through the upper and lower end faces of the connecting block 15 is provided on the connecting block 15, a guide sleeve 16 is installed in the through hole, and the guide sleeve 16 is fixedly connected to the connecting block 15 by a bolt.

As shown in fig. 3, the device further comprises two guide post connecting plates 12; as shown in fig. 4, the guide post is fixedly connected to the upper end of the supporting frame 1 and located between the two upper supporting beams 6, and the two guide post connecting plates 12 are respectively located at the outer sides of the two cylinder fixing seats 8; a stepped hole is formed in the guide pillar connecting plate 12, a guide pillar 13 is inserted into the stepped hole, and the lower end of the guide pillar 13 is inserted into the guide sleeve 16 and is in sliding contact with the guide sleeve 16. The upper end surface of the guide pillar 13 is provided with a guide pillar pressing plate 14, and the guide pillar pressing plate 14 is fixedly connected with the guide pillar connecting plate 12 through a bolt. The arrangement of the guide post 13 can further improve the balance and stability of mold opening and closing.

As a further improvement, the lower rigid coupling of the installation beam 3 has a reinforcing frame 17, the reinforcing frame 17 is fixedly connected with the supporting frame 1, and the structural stability of the device is further improved.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. A mold opening device is characterized by comprising:

the supporting frame is fixedly connected to the rotational molding machine;

the mounting rack is fixedly mounted on the driving ends of the two linear driving devices, and the mounting rack can realize vertical linear motion through the linear driving devices; and the mounting rack is vertically and downwards fixedly connected with a plurality of second connecting columns for connecting an upper die.

2. A mould opening device as claimed in claim 1, characterised in that: the linear driving device is selected from one of an air cylinder and an oil cylinder.

3. A mould opening device as claimed in claim 1, characterised in that: the device also comprises two guide pillar connecting plates; the two guide pillar connecting plates are fixedly connected to the upper end of the supporting frame and are positioned between the two upper supporting beams; and a stepped hole is formed in the guide pillar connecting plate.

4. A mould opening apparatus as claimed in claim 3, characterised in that: a guide post is inserted into the stepped hole; the upper end of the guide pillar is fixedly connected with the guide pillar connecting plate through a guide pillar pressing plate.

5. A mould opening apparatus as claimed in claim 3, characterised in that: connecting blocks are respectively arranged at two side ends of the mounting rack, and the connecting blocks are provided with through holes; and a guide sleeve is fixedly connected in the through hole, and the guide post is connected in the guide sleeve in a sliding manner.

6. A mould opening device as claimed in claim 1, characterised in that: the reinforced beam is fixedly connected with the lower end face of the mounting beam and is connected with the supporting frame.