CN112078171A - Extruder orifice switch assembly and extruder including the same - Google Patents

Abstract

The invention relates to the field of catalyst carrier preparation devices, and discloses an extruder orifice plate switching assembly and an extruder comprising the same. The orifice plate switching assembly of the extruder includes a support frame (1), a limit structure, an orifice plate frame (3) and a position switching power source (5), and the limit structure includes a limit plate (2), the limit plate The orifice plate is connected to the support frame and is provided with an exposure hole (22), the limiting structure can limit the movement of the orifice plate frame along the extrusion direction, the orifice plate frame is provided with a plurality of orifice plates (4), and the orifice plate is provided with a plurality of extruders. The strip hole (41), the exposing hole exposes a plurality of extruding strip holes along the extrusion direction, the position switching power source is connected with the orifice plate frame, and the position switching power source can drive the orifice plate frame to move along a preset direction, so as to switch the orifice plate frame position of multiple well plates. The present invention can switch to a new orifice plate simply by moving the orifice plate frame, so that the operation of replacing the orifice plate is very fast and convenient.

Description

Extruder orifice switch assembly and extruder including the same

technical field

The invention relates to the field of catalyst carrier preparation devices, in particular to an extruder orifice switch assembly of an extruder molding device for producing catalyst carriers and an extruder comprising the same.

Background technique

In the production of catalyst carriers in the petrochemical field, extrusion molding is an important method for industrially producing catalyst carriers. The extrusion molding method is to compress the powder material to be granulated in a certain space, press it into a dense state by external force, and form a predetermined shape through a certain orifice die. This method has the advantages of strong ability to adapt to raw materials and environment, large output of single equipment, good particle uniformity and particle strength.

The extruder is the main equipment used in the extrusion molding method. When the extruder is used to produce catalyst carriers, especially when producing special-shaped carriers, the molding die in the perforated plate of the extruder is often blocked, and the orifice plate needs to be removed to clean and replace the molding die. . At present, the head of the extruder and the perforated plate are mostly connected by bolts. The manual disassembly and replacement of the perforated plate is labor-intensive and time-consuming, which affects the production efficiency of the carrier forming equipment.

In view of the deficiencies of the prior art, a method for quickly replacing the orifice plate during the extrusion process of the catalyst carrier is required to make up for the deficiencies of the prior art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an extruder orifice plate switching assembly capable of rapidly changing the orifice plate during the catalyst carrier extrusion process and an extruder including the same.

In order to achieve the above object, one aspect of the present invention provides an extruder orifice plate switching assembly, the extruder orifice plate switching assembly includes a support frame, a limit structure, an orifice plate frame and a position switching power source, the limit The structure includes a limit plate, the limit plate is connected to the support frame and is provided with an exposed hole, the limit structure can limit the movement of the orifice plate frame along the extrusion direction, and the orifice plate frame is provided with a plurality of an orifice plate, the orifice plate is provided with a plurality of extrusion holes, the exposing holes expose the plurality of extrusion holes along the extrusion direction, and the position switching power source is connected to the orifice plate frame, The position switching power source can drive the orifice plate frame to move in a preset direction, so as to switch the positions of the plurality of orifice plates on the orifice plate frame.

Preferably, the limiting structure further includes a limiting power source and a driving rod connected with the limiting power source, a driving hole is further provided on the limiting plate, and the driving rod is penetrated through the driving hole to apply or release pressure to the orifice plate holder.

Preferably, a plurality of the limiting power sources are provided, and a plurality of the driving holes are provided corresponding to the number of the driving rods.

Preferably, the position switching power source and the limit power source are hydraulic cylinders.

Preferably, an accommodating space is formed between the support frame and the limiting plate, the orifice plate frame is located in the accommodating space, and the driving rod can extend into the accommodating space to connect the orifice plate frame to the accommodating space. Pressure is applied or can be extended from the receiving space to relieve pressure on the orifice plate holder.

Preferably, the support frame is provided with a guide rail extending along the preset direction, and the orifice plate frame is slidably connected to the guide rail.

Preferably, the limiting structure further includes a limiting block disposed between the guide rail and the limiting plate.

Preferably, the extruder orifice plate switching assembly further includes a guide rod extending along the preset direction, one end of the guide rod is connected to the orifice plate frame, and the other end of the guide rod is inserted into the support frame formed on the in the guide hole.

Preferably, the shape of the openings of the plurality of extruded holes on the orifice plate is annular.

Another aspect of the present invention provides an extruder, the extruder includes a head and the extruder orifice switch assembly as described above, the head is connected with the support frame, and the head is The material outlet is aligned with the orifice plate.

Through the above technical solution, when the orifice plate needs to be replaced, the power source is switched on at the start position, and the orifice plate frame is driven to move in the preset direction, and finally the orifice plate frame moves to the unused orifice plate on the orifice plate frame, which is located in the position of the extruder. At the material outlet, since the orifice plate frame of the present invention is provided with a plurality of orifice plates, the orifice plate frame can be switched to a new orifice plate only by moving the orifice plate frame. Replacing the orifice plate is quick and easy. The advantages of the present invention will be explained in more detail in the following detailed description.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached image:

1 is a schematic front view of an extruder orifice plate switching assembly provided by the present invention;

2 is a schematic top view of the extruder orifice plate switching assembly provided by the present invention;

FIG. 3 is a schematic side sectional view of the extruder provided by the present invention.

Description of reference numerals

1 Support frame 2 Limit plate

21 Accommodating space 22 Exposure hole

23-drive hole 3-well plate holder

4-well plate with 41 extruded holes

5-position switching power source 6-position limit power source

7 guide rails 8 limit blocks

9 guide rod 10 head

11 Hydraulic system

Detailed ways

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, if it is judged that the description of related well-known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

As shown in Fig. 1 to Fig. 3, the present invention provides an extruder orifice plate switching assembly. The orifice plate switching assembly of the extruder provided by the present invention includes a support frame 1 , a limit structure, an orifice plate frame 3 and a position switching power source 5 .

As shown in Figure 1, the support frame 1 is the basic support component of the orifice plate switching assembly of the extruder, providing a mounting basis for each component, and the support frame 1 is used to connect the orifice plate switching assembly of the extruder and the machine of the extruder. header (described in detail below). In addition, the shape of the support frame 1 can be designed according to specific needs, and the material of the support frame 1 is preferably a material with high hardness.

The limiting structure is a component that restricts the movement of the orifice plate frame 3 along the extrusion direction. The limit structure includes a limit plate 2, which is connected to the support frame 1. In order to limit the movement of the orifice plate frame 3 along the extrusion direction, the limit plate 2 needs to be set at a position opposite to the extruder, so that The orifice plate is located between the extruder and the limit plate 2, and at the same time, in order to enable the catalyst to be extruded along the extrusion direction, an exposure hole 22 is also provided on the limit plate 2, and the exposure hole 22 is aligned with the orifice plate, and The exposure holes 22 expose a plurality of extrusion holes 41 described below in the extrusion direction.

The orifice plate frame 3 is a component for installing a plurality of orifice plates 4 , and a plurality of orifice plates 4 are arranged on the orifice plate 4 , and a plurality of extrusion holes 41 are arranged on the orifice plate 4 . 1 and 2 show that two orifice plates 4 are arranged on the orifice plate frame 3 at intervals along the left-right direction, and the two orifice plates 4 are respectively integrally formed on the orifice plate frame 3, but the arrangement form of the orifice plates 4 is The number of orifice plates 4 is not limited to this. The plurality of orifice plates 4 can be arranged in a circle, or they can be arranged in an up, down, left and right arrangement. The plurality of orifice plates 4 can also be detachably arranged on the orifice plate frame 3. Specific needs can be designed. The arrangement form and number of the plurality of extrusion holes 41 on the orifice plate 4 can also be designed according to specific needs. In the present invention, as shown in FIG. 1 , as a preferred embodiment, the plurality of The shape of the opening layout of the extruding hole 41 is a circular ring, and two rings are arranged in the radial direction, but the present invention is not limited thereto. In actual working conditions, a forming die will be set in the extrusion hole. The forming die is in the shape of a disc with a certain thickness, and a plurality of holes are formed on the panel along the thickness direction. Clover type or tooth ball type or other structures can be selected and used according to actual needs.

The position switching power source 5 is a component that provides power to the orifice plate frame 3, and the position switching power source 5 is connected to the orifice plate frame 3, which can drive the orifice plate frame 3 to move in a preset direction to switch the multiple positions on the orifice plate frame 3. position of the orifice plate 4. As mentioned above, the plurality of orifice plates 4 can be arranged in a circle. At this time, the position switching power source 5 can be a power source for rotating the orifice plate frame 3, and the plurality of orifice plates 4 can also be arranged in an up, down, left and right arrangement. The power source 5 may include left and right driving power sources for moving the orifice plate frame 3 left and right and up and down driving power sources for moving the orifice plate frame 3 in the up and down direction, and the specific form can be designed according to specific needs. In a word, the position switching power source 5 can move the orifice plate frame 3 so that the unused orifice plate 4 on the orifice plate frame 3 can be located at the material outlet of the extruder.

In the working state (the orifice plate is in the working position), the material outlet of the extruder, the orifice plate 4 and the exposed hole 22 of the limit plate 2 are in an aligned state, the material is extruded from the material outlet of the extruder, and the material passes through the orifice plate After 4, the catalyst is extruded into strips. When the orifice plate 4 needs to be replaced, stop the extruder first, then start the position switching power source 5 and drive the orifice plate frame 3 to move in the preset direction, and finally make the new orifice plate 4 on the orifice plate frame 3 in the working position , so as to complete the replacement of the orifice plate.

Because the orifice plate 4 of the extruder orifice plate switching assembly of the present invention is not directly connected to the extruder, but the orifice plate 4 is restricted from moving along the extrusion direction by the limit structure, which can keep the orifice plate 4 It does not move in the extrusion direction during the extrusion process. It can be seen that the orifice plate switching assembly of the extruder of the present invention can replace the orifice plate 4 very quickly, and is bolted to the former extruder head and the perforated plate. Compared with the conventional technology, there is no manual disassembly and replacement process of the porous plate, the labor intensity is greatly reduced, the replacement time of the orifice plate is shortened, and the production efficiency of the catalyst carrier molding equipment is improved as a whole.

Regarding the limiting structure, the movement of the orifice plate frame 3 in the extrusion direction can be restricted only by the limiting plate 2, that is, the gap between the orifice plate frame 3 and the limiting plate 2 is set to be very small. The plate frame 3 moves in the left and right directions, and the movement in the extrusion direction is very small, but as a preferred embodiment, as shown in FIGS. For the connected driving rod, the limiting plate 2 is also provided with a driving hole 23 , and the driving rod is penetrated through the driving hole 23 to apply pressure or release the pressure to the orifice plate frame 3 . The orifice plate frame 3 is directly pressed by the driving rod, which directly resists the extrusion pressure.

A preferred embodiment of the position switching power source 5 and the limit power source 6, a hydraulic cylinder is selected in the present invention, the position switching power source 5 is fixedly connected with one side of the orifice plate frame 3 by a large hydraulic cylinder, and the limit power source 6 A plurality of small hydraulic cylinders can be contacted and connected with the orifice plate frame 3 , so that pressure can be applied or released to the orifice plate frame 3 . Preferably, a plurality of limit power sources 6 are provided, and a plurality of driving holes 23 are provided corresponding to the number of driving rods, but the present invention is not limited to this, as long as sufficient pressure can be provided to the orifice plate holder 3 to prevent the orifice plate The frame 3 may be moved in the extrusion direction. In FIGS. 1 to 2 , three small hydraulic cylinders are shown as the limit power source 6 .

Specifically, the piston rod of the large hydraulic cylinder (position switching power source 5 ) is fixedly connected to one side of the orifice plate frame 3 so that the orifice plate frame 3 can move according to the movement of the piston rod of the large hydraulic cylinder. As shown in FIG. 1 , when two orifice plates 4 arranged left and right are arranged on the orifice plate frame 3, the piston rod of the large hydraulic cylinder can be set to move left and right, so that the orifice plate frame 3 can also move left and right. When the extrusion hole 41 of the left orifice plate 4 is blocked and needs to be replaced, it is only necessary to move the piston rod of the large hydraulic cylinder to the left, thereby placing the right orifice plate 4 in the working position. The piston rod (ie the driving rod) of the small hydraulic cylinder (limiting power source 6 ) is inserted into the driving hole 23 and can directly contact the orifice plate 4 and apply pressure or leave the orifice plate 4 to release the pressure on the orifice plate 4 .

When both the position switching power source 5 and the limit power source 6 are hydraulic cylinders, a hydraulic system can be shared. As shown in FIG. 2 , one position switching power source 5 and multiple limit power sources 6 are connected to the hydraulic system 11 in parallel. However, the position switching power source 5 and the limit power source 6 are not limited to hydraulic cylinders, but may also be motors or other driving elements. The present invention does not limit the specific forms of the position switching power source 5 and the limit power source 6 .

Based on this, in the working state, the piston rod of the small hydraulic cylinder is always in contact with the orifice plate 4 to resist the extrusion pressure. When the orifice plate 4 needs to be replaced, the extruder is stopped first, and then the piston rod of the small hydraulic cylinder Leave the orifice plate 4 to release the restricting force in the extrusion direction, then the piston rod of the large hydraulic cylinder moves to make the new orifice plate in the working position, and then the piston rod of the small hydraulic cylinder contacts the orifice plate 4 again, and then starts the extrusion again. The strip machine is used to extrude strip catalyst.

In order to keep the orifice plate frame 3 moving in the preset direction without interference from the limiting plate 2, a accommodating space 21 is formed between the support frame 1 and the limiting plate 2, and the orifice plate frame 3 is located in the accommodating space 21, and the driving rod can Protruding into the accommodating space 21 to apply pressure to the orifice plate frame 3 or extending from the accommodating space 21 to release the pressure to the orifice plate frame 3 . As shown in FIG. 3 , the size in the extrusion direction of the accommodating space 21 is larger than the size in the extrusion direction of the orifice plate holder 3 .

In addition, in order to stably move the orifice plate frame 3 in a predetermined direction, the support frame 1 is provided with a guide rail 7 extending along the predetermined direction, and the orifice plate frame 3 is slidably connected to the guide rail 7 . The guide rail 7 can be directly formed on the support frame 1 , or a separate guide rail can be fixedly connected to the support frame 1 . In the present invention, the guide rails 7 are detachably arranged on the support frame 1, and when the rails are worn out due to long-term sliding, the guide rails 7 can be replaced individually. In the present invention, the thickness of the guide rail 7 (dimension in the extrusion direction) is designed to be the same as the thickness of the orifice plate frame 3, so that there is a gap between the guide rail 7 and the limit plate 2. In order to prevent the guide rail 7 from moving along the extrusion direction, Preferably, the limiting structure may further include a limiting block 8 disposed between the guide rail 7 and the limiting plate 2 . However, the present invention is not limited to this, and the thickness of the guide rail 7 can be designed to be the same as the dimension in the extrusion direction of the accommodating space 21 .

In addition, preferably, the orifice plate switching assembly of the extruder may further include a guide rod 9 extending along a preset direction, one end of the guide rod 9 is connected to the orifice plate frame 3 , and the other end is inserted into the hole formed on the support frame 1 . In the guide hole, the guide rod 9 and the guide rail 7 guide the movement of the orifice plate holder 3 . More preferably, one end of the guide rod 9 is connected to the upper part of the orifice plate frame 3, so that the guide rail 7 guides the movement of the orifice plate frame 3 on the bottom edge of the orifice plate frame 3, and the guide rod 9 guides the hole in the upper part of the orifice plate frame 3. The movement of the plate frame 3 makes the whole orifice plate frame 3 move smoothly.

The above is a preferred embodiment of the extruder orifice plate switching assembly provided by the present invention. Hereinafter, the present invention further provides an extruder, which includes a die head 10 and the extruder orifice plate switching assembly as described above. Specifically, as shown in FIG. 3 , the handpiece 10 is connected with the support frame 1 , and the material outlet of the handpiece 10 is aligned with the orifice plate 4 . In the working state, the material outlet of the head 10 of the extruder, the orifice plate 4 and the exposed hole 22 of the limit plate 2 are in an aligned state, and the material is extruded from the material outlet of the head 10. After the material passes through the orifice plate 4, The catalyst is extruded into strips. When the orifice plate 4 needs to be replaced, stop the extruder first, then start the position switching power source 5 and drive the orifice plate frame 3 to move in the preset direction, and finally make the new orifice plate 4 on the orifice plate frame 3 in the working position , so as to complete the replacement of the orifice plate.

The preferred embodiments of the present invention have been described above in detail with reference to the accompanying drawings, however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed in the present invention, and all belong to the protection scope of the present invention.

Claims (10)

1. A hole plate switching component of a bar extruding machine is characterized by comprising a support frame (1), a limiting structure, a hole plate frame (3) and a position switching power source (5),

the limiting structure comprises a limiting plate (2), the limiting plate (2) is connected to the support frame (1) and is provided with an exposing hole (22), the limiting structure can limit the perforated plate frame (3) to move along the extrusion direction,

the orifice plate frame (3) is provided with a plurality of orifice plates (4), the orifice plates (4) are provided with a plurality of strip extruding holes (41), the exposing holes (22) expose the strip extruding holes (41) along the extruding direction,

position switching power supply (5) with orifice plate frame (3) are connected, position switching power supply (5) can drive orifice plate frame (3) are followed and are predetermine the direction and remove, in order to switch a plurality of on orifice plate frame (3) the position of orifice plate (4).

2. The hole plate switching assembly of the rod extruding machine according to claim 1, wherein the limiting structure further comprises a limiting power source (6) and a driving rod connected with the limiting power source (6), the limiting plate (2) is further provided with a driving hole (23), and the driving rod penetrates through the driving hole (23) to apply pressure to the hole plate frame (3) or release pressure.

3. A hole plate switching assembly of a rod extruding machine according to claim 2, wherein the limit power source (6) is provided in plurality, and the driving holes (23) are provided in plurality corresponding to the number of the driving rods.

4. A plodder aperture plate switching assembly according to claim 2, characterized in that the position switching power source (5) and the limiting power source (6) are hydraulic cylinders.

5. A hole plate switching assembly for a plodder according to claim 2, characterized in that a receiving space (21) is formed between the support frame (1) and the limit plate (2), the hole plate carrier (3) being located in the receiving space (21), and the drive rod can be extended into the receiving space (21) to apply pressure to the hole plate carrier (3) or can be extended out of the receiving space (21) to release the pressure to the hole plate carrier (3).

6. A hole plate switching assembly of a rod extruder according to claim 5, wherein the support frame (1) is provided with a guide rail (7) extending in the preset direction, the hole plate frame (3) being slidably connected to the guide rail (7).

7. A plodder orifice plate switching assembly according to claim 6, characterized in that the limiting structure further comprises a limiting block (8) arranged between the guide rail (7) and the limiting plate (2).

8. A plodder orifice plate switching assembly according to claim 6, characterized in that it further comprises a guide rod (9) extending in the predetermined direction, one end of the guide rod (9) being connected to the orifice plate carrier (3) and the other end being inserted in a guide hole formed in the support frame (1).

9. An orifice plate switching assembly according to claim 1, characterized in that the arrangement of the orifices of the plurality of extrusion orifices (41) on the orifice plate (4) is circular.

10. A plodder characterized in that it comprises a head (10) and a plodder aperture plate switching assembly according to any one of claims 1 to 9, the head (10) being connected to the support frame (1) and a material outlet of the head (10) being aligned with the aperture plate (4).

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