Special-shaped magnetic rubber composite lining plate mold

Abstract

The utility model provides a special-shaped magnetic rubber composite lining plate mold, and relates to the field of preparation equipment. The mold comprises a bottom mold, a top mold, a frame unit and a core mold, the frame unit is of a square structure and is arranged between the bottom die and the top die in a sealed mode, and an installation cavity of the core die is defined by the square structure, the bottom die and the top die. The core mold is adaptively arranged in the mounting cavity and comprises a matrix type insert, a special-shaped insert and a square insert; the matrix type insert is square, the upper surface of the matrix type insert is provided with a special-shaped insert installation position and a plurality of magnet installation positions distributed in a matrix mode, the special-shaped insert is arranged in the special-shaped insert installation position in a matched mode, and the square insert is spliced and arranged on one side edge of the matrix type insert in a flush mode; and the square insert and the matrix insert are matched with the mounting cavity in size after being spliced. The die disclosed by the utility model provides powerful guarantee for improving the production efficiency and the product quality of the special-shaped magnetic rubber composite lining plate.

Description

Technical Field

[0001] The utility model relates to the technical field of ore dressing equipment, in particular to a special-shaped magnetic rubber composite lining plate mould. Background Art

[0002] Among the various equipment used in the ore dressing plant, the liner is the most widely used component of these equipment. With the continuous development of science and technology, new materials, new processes, new structures, etc. have also been widely used in liner products in the field of ore dressing. Among them, the application of magnetic liners is becoming more and more extensive. Magnetic liners are also widely used in vertical stirring mill cylinder linings, thickening tanks, pump tanks and other parts that store overcurrent. Magnetic field lining is a composite lining with magnetic force that combines permanent magnets and rubber. This type of magnetic lining can not only increase the life of the lining, but also reduce the use of materials with the same life as traditional metal liners, rubber liners, etc., thereby reducing the volume of the lining and improving the operating efficiency of the equipment.

[0003] The existing production process of magnetic linings is complicated, inefficient and not precise due to the magnetism of magnets. The linings produced are mainly standard linings, and the production process of special-shaped linings is even more complicated. At present, special-shaped linings are generally produced in the form of artificial lining rubber. This operation method has lower production efficiency and higher cost. The low density of artificial lining rubber can easily cause rubber stratification and shedding during the use of the lining, which greatly affects the life of the special-shaped lining. Utility Model Content

[0004] The utility model aims to provide a special-shaped magnetic rubber composite lining plate mold. For special-shaped lining plates with non-standard shapes, the mold cooperates with a flat vulcanizer and a die-casting mold to fully solve the problems of high production cost and low efficiency caused by artificial lining rubber molding of special-shaped lining plates, and the technical problem of rubber stratification and shedding during the use of the lining plates due to low density, which affects the service life of the special-shaped lining plates.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes the following technical scheme: a special-shaped magnetic rubber composite lining plate mold, comprising: a bottom mold, a top mold, a frame unit and a core mold;

[0006] The frame unit is configured as a square-shaped structure, the frame unit is sealed between the bottom mold and the top mold, and the square-shaped structure, the upper surface of the bottom mold, and the lower surface of the top mold enclose a mounting cavity of the core mold;

[0007] The core mold is adapted to be arranged in the installation cavity, and includes a matrix insert, a special-shaped insert, and a square insert; the matrix insert is arranged in a square shape, and a special-shaped insert installation position and a plurality of magnet installation positions distributed in a matrix are arranged on its upper surface, and the special-shaped insert is adapted to be arranged in the special-shaped insert installation position; the square insert is spliced ​​and arranged on one side of the matrix insert, and the two side edges of the square insert adjacent to the spliced ​​side are flush with the two side edges of the matrix insert adjacent to the spliced ​​side;

[0008] The square insert and the matrix insert are matched with the size of the installation cavity after being assembled.

[0009] Furthermore, the frame unit includes four frames arranged in a U-shaped pattern, and a cross section of any frame along its length is configured as an inverted T-shaped protrusion structure facing its opposite side frame;

[0010] A U-shaped groove is respectively arranged at a relative position between the upper surface of the bottom mold and the lower surface of the top mold, and the frame unit is clamped in the U-shaped groove.

[0011] Further, it also includes: a plurality of raised locking strips of unequal length;

[0012] A portion of the lower surface of the top mold located in the U-shaped groove is provided with a plurality of rectangular grooves in parallel and at intervals, the extending direction of the rectangular grooves is perpendicular to the joint edge of the square insert and the matrix insert, and the two ends of the rectangular grooves in the length direction extend to the U-shaped groove;

[0013] The raised locking strip is arranged in the rectangular groove, and the cross-sectional dimension of the raised locking strip along its length direction is adapted to the cross-sectional dimension of the rectangular groove along its length direction, so as to form a flange crimping plane on the surface of the composite liner.

[0014] Furthermore, the protruding lock strip, the special-shaped insert, the matrix insert and the square insert are fixed on the surface of the lower surface of the top mold which is located in the U-shaped groove thereof;

[0015] The bottom mold is a carbon steel bottom mold, and a portion of the surface of the upper surface in the square groove is provided with a plurality of positioning pins, and the matrix insert is provided with a plurality of positioning holes;

[0016] When the top mold and the bottom mold are closed, the positioning hole and the positioning pin cooperate to position.

[0017] Furthermore, the top mold and the bottom mold are fixed with conical cylindrical positioning pins after being engaged with any of the frames.

[0018] Furthermore, the matrix insert includes a base plate and a plurality of transverse partitions and longitudinal partitions evenly staggered on the surface of the base plate on one side close to the top mold, the surfaces of the transverse partitions and longitudinal partitions are perpendicular to the surface of the base plate, and the transverse partitions, longitudinal partitions and base plate are divided to form a plurality of magnet mounting positions distributed in a matrix.

[0019] Furthermore, any one of the frame ends close to the top mold is provided with a plurality of first U-shaped grooves along its length direction, the first U-shaped grooves opening toward the top mold and connected to the mounting cavity; the top mold and the first U-shaped grooves are provided with second U-shaped grooves opening toward the bottom mold at positions corresponding to the first U-shaped grooves; the second U-shaped grooves and the first U-shaped grooves are combined to form demolding holes.

[0020] Furthermore, the cross-section of the U-shaped groove along its extension direction is set to a trapezoidal structure, and the cross-sectional shape of the inverted T-shaped protruding structure of the frame is adapted to the cross-sectional shape of the U-shaped groove.

[0021] Furthermore, the top mold, frame unit and core mold are all made of stainless steel.

[0022] Furthermore, the outer side walls of the top mold and the bottom mold are both provided with lifting ears.

[0023] It can be seen from the above technical solutions that the technical solution of the utility model has the following beneficial effects:

[0024] The utility model discloses a special-shaped magnetic rubber composite lining plate mold, comprising a bottom mold, a top mold, a frame unit and a core mold; the frame unit is arranged as a U-shaped structure, which is sealed between the bottom mold and the top mold, and the U-shaped structure, the bottom mold and the top mold enclose a mounting cavity of the core mold; the mold is adapted to be arranged in the mounting cavity, and comprises a matrix insert, a special-shaped insert and a square insert; the matrix insert is arranged in a square shape, and a special-shaped insert mounting position and a plurality of magnet mounting positions distributed in a matrix are arranged on its upper surface, the special-shaped insert is adapted to be arranged in the special-shaped insert mounting position, and the square insert is spliced ​​and flushly arranged on one side of the matrix insert; the square insert is adapted to the size of the mounting cavity after being spliced ​​with the matrix insert. When this mold is used, a flat vulcanizer is used in conjunction with a die-casting mold to improve the density of the rubber of this type of composite lining, effectively solving the problems of low production efficiency and high cost caused by the use of artificial lining rubber for special-shaped magnetic rubber composite linings, and solving the problem of short service life caused by low density, thus providing a strong guarantee for improving the quality of magnetic rubber composite linings.

[0025] The mold disclosed in the utility model is a novel, efficient and low-cost special-shaped lining plate manufacturing mold, which can be used to produce various special-shaped magnetic composite lining plates in suitable scenarios, and has the characteristics of high production efficiency, simple production operation and low manufacturing cost of the lining plates; this solution can be processed by a machining center in production, and the material adopts a combination of stainless steel and carbon steel, which can reduce the material cost of the mold; the frame of the mold can be combined with inserts to produce various special-shaped and non-special-shaped magnetic lining plates of different sizes, and the mold frame has a high degree of commonality, which can reduce the mold opening cost of similar products; in addition, this solution combines the structural form of the mold with the material combination form to improve the applicability of the product mold, reduce the mold opening cost of similar products, save costs for enterprise development, improve work efficiency for production applications, and improve management effectiveness.

[0026] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

[0027] The foregoing and other aspects, embodiments and features of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will be apparent from the following description or learned from the practice of the specific embodiments according to the teachings of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are not drawn to scale according to actual reference objects. In the accompanying drawings, each identical or approximately identical component shown in each figure may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the utility model will be described by way of example and with reference to the accompanying drawings, in which:

[0029] Figure 1 This is the front axial view of the utility model mold after assembly;

[0030] Figure 2 This is an exploded view of the mold of the utility model;

[0031] Figure 3 This is a cross-sectional view of the assembly of the mold of the utility model Figure 1 ;

[0032] Figure 4 This is a cross-sectional view of the assembly of the mold of the utility model Figure 2 ;

[0033] Figure 5 This is a bottom view of the matrix insert of the utility model;

[0034] Figure 6This is a schematic diagram of the fixing structure of the middle frame, the top mold and the bottom mold of the utility model;

[0035] Figure 7 This is a three-dimensional view of the mold product of the utility model.

[0036] In the figure, the specific meaning of each mark is as follows:

[0037] 1-bottom mold, 2-frame unit, 2.1 first frame, 2.2-second frame, 3-top mold, 4-special-shaped insert, 5-matrix insert, 5.1-transverse partition, 5.2-longitudinal partition, 6-square insert, 7-raised locking strip, 8-locating pin, 9-conical cylindrical locating pin, 10-lifting ear, 11-mold removal hole, 12-hexagon socket bolt. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the utility model belongs.

[0039] The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular form of "a", "an" or "the" and other similar words do not indicate a quantitative limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprise" cover the features, wholes, steps, operations, elements and / or components listed after "include" or "comprise", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] Based on the fact that currently special-shaped magnetic rubber composite linings are generally formed in the form of artificial rubber lining during production, this operation method is inefficient and costly, and the low density of the rubber lining can easily cause rubber stratification and shedding during the use of the lining, thereby reducing the service life of the lining; the utility model aims to propose a new special-shaped magnetic composite lining production mold, which uses a flat vulcanizer and a die-casting mold to improve the density of the rubber of this type of composite lining, avoid the use of artificial rubber lining, and ensure the quality of the prepared composite lining.

[0041] The following is a further detailed introduction to the special-shaped magnetic rubber composite lining plate mold disclosed in the utility model in conjunction with the specific embodiments shown in the accompanying drawings.

[0042] Combination Figure 1 and Figure 2 As shown, the special-shaped magnetic rubber composite lining plate mold disclosed in the embodiment includes: a bottom mold 1, a top mold 3, a frame unit 2 and a core mold;

[0043] The frame unit 2 is configured as a square-shaped structure, and the frame unit 2 is sealed between the bottom mold 1 and the top mold 3, and the square-shaped structure, the upper surface of the bottom mold 1, and the lower surface of the top mold 3 enclose the installation cavity of the core mold; Figure 2 The structure is shown, the frame unit 2 includes four frames arranged in a square shape, and the cross section of any frame along its length is set to an inverted T-shaped protrusion structure facing the frame on the opposite side; the upper surface of the bottom mold 1 and the lower surface of the top mold 3 are each provided with a square groove at the relative position. During assembly, the frame unit 2 is clamped in the square groove, which not only makes the structure more stable, but also does not produce flash due to the assembly gap between the bottom mold 1, the frame and the top mold 3 after the lining board is formed, thereby improving the appearance quality of the lining board, reducing manual trimming operations, improving production efficiency, and reducing production costs and labor costs in the production process. For ease of implementation, the length and structure of a pair of frames on opposite sides of the frame unit 2 are exactly the same. In addition, any one of the frame ends close to the top mold 3 is provided with a plurality of first U-shaped grooves along its length direction, the first U-shaped grooves opening toward the top mold 3 and connected to the mounting cavity; the top mold 3 and the first U-shaped grooves are provided with second U-shaped grooves opening toward the bottom mold 1 at positions corresponding to the first U-shaped grooves; the second U-shaped grooves and the first U-shaped grooves are combined to form a demolding hole 11, which serves as a prying structure for separating the top mold 3 after the product is formed.

[0044] The core mold is adapted to be arranged in the installation cavity, including a matrix insert 5, a special-shaped insert 4, and a square insert 6; Figure 5As shown, the matrix insert 5 is set in a square shape, and its upper surface is provided with a special-shaped insert installation position and a plurality of magnet installation positions distributed in a matrix, and the special-shaped insert 4 is adapted to be set in the special-shaped insert installation position; during production, any magnet installation position is adapted to install a permanent magnet; the square insert 6 is spliced ​​and set on one side of the matrix insert 5, and the two sides of the square insert 6 adjacent to its splicing side are flush with the two sides of the matrix insert 5 adjacent to its splicing side; the square insert 6 is spliced ​​with the matrix insert 5 to adapt to the size of the installation cavity. In specific implementation, a set of molds includes a plurality of matrix inserts 5, special-shaped inserts 4, and square inserts 6. The structures and sizes of the same type of inserts are different, so that different matrix inserts 5, special-shaped inserts 4 and square inserts 6 can be used to assemble and produce special-shaped magnetic rubber composite linings of different sizes, different rules and different shapes when forming lining products, thereby improving the application range of the frame unit 2 and reducing the production mold opening cost of the special-shaped magnetic rubber composite lining.

[0045] Further integration Figure 2 As shown, the special-shaped magnetic rubber composite lining plate mold also includes: a plurality of unequal length raised locking strips 7; the mounting structure is as follows: a plurality of rectangular grooves are arranged in parallel and at intervals on the partial surface of the lower surface of the top mold 3 located in its U-shaped groove, and the extension direction of the rectangular groove is perpendicular to the joint edge of the square insert 6 and the matrix insert 5, and the two ends of the rectangular groove in the length direction extend to the U-shaped groove; the raised locking strip 7 is arranged in the rectangular groove, and the cross-sectional dimension of the raised locking strip 7 along its length direction is adapted to the cross-sectional dimension of the rectangular groove along its length direction, so as to form a flange crimping plane on the surface of the composite lining plate.

[0046] The special-shaped magnetic rubber composite lining prepared in the embodiment is a special-shaped lining with arc-shaped edges designed on the basis of the standard square lining, and is used at the joint between the equipment and the pipe mouth. Therefore, in the illustrated embodiment, the special-shaped insert 4 is configured as a fan-shaped structure, which is arranged at a right angle to the matrix insert 5, and a fan-shaped notch will be formed when the lining is formed. In addition, the pipe mouths entering and exiting the equipment are often connected to the main equipment through flanges, and the flange mounting surface needs to achieve surface contact with the main equipment. Therefore, the raised crest strips of the special-shaped lining cannot affect the installation of the pipe mouth flange, so the lining at the flange installation location cannot be designed with a raised crest strip structure. Therefore, in the embodiment, several raised locking strips 7 are arranged on the arc edge of the special-shaped insert 4 and extend to the opposite side of the matrix insert 5, and finally as shown Figure 7 As shown, a flange crimping plane is formed on the outer edge of the fan-shaped notch of the liner.

[0047] When the mold is assembled, the protruding lock strip 7, the special-shaped insert 4, the matrix insert 5 and the square insert 6 are all fixed on the partial surface of the lower surface of the top mold 3 located in the U-shaped groove thereof, and are fixed by hexagon socket bolts 12 in the embodiment; the bottom mold 1 is a carbon steel bottom mold, and a plurality of positioning pins 8 are provided on the partial surface of the U-shaped groove on its upper surface, and a plurality of positioning holes are provided on the matrix insert 5; when the top mold 3 and the bottom mold 1 are molded together, the positioning holes cooperate with the positioning pins 8 for positioning. The relative position of the bottom mold 1 and the matrix insert 5 can be fixed by the positioning pins 8, and there is no situation in which the bottom mold 1 and the matrix insert 5 are positioned incorrectly due to the pressure of vulcanization pressurization during product molding.

[0048] In order to facilitate the tighter assembly of the bottom mold 1, the frame and the top mold 3, the cross-section of the U-shaped groove along its extension direction is set to a trapezoidal structure, and the cross-sectional shape of the inverted T-shaped protrusion structure of the frame is adapted to the cross-sectional shape of the U-shaped groove; at the same time, in order to ensure that the structure of the bottom mold 1, the frame and the top mold 3 after the engagement is more stable, the top mold 3 and the bottom mold 1 are fixed with a conical cylindrical positioning pin 9 after being engaged with any of the frames, such as Figure 7 As shown; in the embodiment, based on the different numbers of first U-shaped grooves on the frame in the frame unit, the frame with fewer numbers in the two pairs of frames is defined as the first frame 2.1, and the frame with more numbers is defined as the second frame 2.2, then the bottom mold 1, the frame and the top mold 3 cooperate as shown. Figure 3 and Figure 4 As shown, the mating surfaces of the bottom mold 1, the frame and the top mold 3 fit tightly.

[0049] Further integration Figure 5 The matrix insert 5 structure shown in the figure comprises a bottom plate and a plurality of transverse partitions 5.1 and longitudinal partitions 5.2 uniformly and vertically staggered on the plate surface of the bottom plate near the top mold 3, the plate surfaces of the transverse partitions 5.1 and longitudinal partitions 5.2 are perpendicular to the plate surface of the bottom plate, and the transverse partitions 5.1, longitudinal partitions 5.2 and the bottom plate are divided to form a plurality of magnet installation positions distributed in a matrix; on the other hand, the partition plates made of stainless steel can also isolate the magnetic force between the permanent magnets to prevent the permanent magnets from Attracted or repelled by magnetic force; and, the transverse partition 5.1 and the longitudinal partition 5.2 constituting the magnet installation position, and the various structures that will contact with the permanent magnet, including the top mold 3, the frame unit 2, and the core mold are all made of stainless steel; on the one hand, this design provides a positioning effect for the permanent magnet made into the special-shaped magnetic rubber composite lining, to prevent the position of the magnet from moving during the vulcanization process and affecting the forming of the lining; on the other hand, the partition made of stainless steel can also isolate the magnetic force between the permanent magnets, to prevent the permanent magnets from being attracted or repelled by the magnetic force.

[0050] In the embodiment, in order to facilitate the transportation of the special-shaped magnetic rubber composite lining plate mold, the outer side walls of the top mold 3 and the bottom mold 1 are both provided with lifting ears 10, and the lifting ears 10 are arranged on the outer side walls opposite to the top mold 3 and the bottom mold 1. In order to reduce the cost investment of stainless steel materials and reduce the difficulty of processing, the lifting ears 10 and the positioning pins 8 used can also be made of carbon steel like the bottom mold 1.

[0051] The special-shaped magnetic rubber composite lining plate mold disclosed by the utility model can be used to produce various special-shaped magnetic composite lining plates, and has the characteristics of high production efficiency, simple production operation, and low manufacturing cost of the lining plates; the mold material adopts a combination of stainless steel and carbon steel, which can reduce the material cost of the mold, improve the commonality of the frame unit, and reduce the mold opening cost of similar products, thereby achieving the purpose of reducing costs and increasing efficiency for enterprises.

[0052] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A special-shaped magnetic rubber composite lining mold, characterized in that: include: Bottom mold, top mold, frame unit and core mold; The frame unit is configured as a square-shaped structure, the frame unit is sealed between the bottom mold and the top mold, and the square-shaped structure, the upper surface of the bottom mold, and the lower surface of the top mold enclose a mounting cavity of the core mold; The core mold is adapted to be arranged in the installation cavity, and includes a matrix insert, a special-shaped insert, and a square insert; the matrix insert is arranged in a square shape, and a special-shaped insert installation position and a plurality of magnet installation positions distributed in a matrix are arranged on its upper surface, and the special-shaped insert is adapted to be arranged in the special-shaped insert installation position; the square insert is spliced ​​and arranged on one side of the matrix insert, and the two side edges of the square insert adjacent to the spliced ​​side are flush with the two side edges of the matrix insert adjacent to the spliced ​​side; The square insert and the matrix insert are matched with the size of the installation cavity after being assembled.

2. The special-shaped magnetic rubber composite lining plate mold according to claim 1 is characterized in that: The frame unit comprises four frames arranged in a U-shape, and a cross section of any frame along its length is arranged as an inverted T-shaped protrusion structure facing its opposite side frame; A U-shaped groove is respectively arranged at a relative position between the upper surface of the bottom mold and the lower surface of the top mold, and the frame unit is clamped in the U-shaped groove.

3. The special-shaped magnetic rubber composite lining plate mold according to claim 2 is characterized in that: Also includes: Several raised locking strips of unequal length; A portion of the lower surface of the top mold located in the U-shaped groove is provided with a plurality of rectangular grooves in parallel and at intervals, the extending direction of the rectangular grooves is perpendicular to the joint edge of the square insert and the matrix insert, and the two ends of the rectangular grooves in the length direction extend to the U-shaped groove; The raised locking strip is arranged in the rectangular groove, and the cross-sectional dimension of the raised locking strip along its length direction is adapted to the cross-sectional dimension of the rectangular groove along its length direction, so as to form a flange crimping plane on the surface of the composite liner.

4. The special-shaped magnetic rubber composite lining plate mold according to claim 3 is characterized in that: The protruding lock strip, the special-shaped insert, the matrix insert and the square insert are fixed on the surface of the lower surface of the top mold which is located in the square-shaped groove; The bottom mold is a carbon steel bottom mold, and a portion of the surface of the upper surface in the square groove is provided with a plurality of positioning pins, and the matrix insert is provided with a plurality of positioning holes; When the top mold and the bottom mold are closed, the positioning hole and the positioning pin cooperate to position.

5. The special-shaped magnetic rubber composite lining plate mold according to claim 2 is characterized in that: After the top mold and the bottom mold are engaged with any of the frames, they are fixed by using conical cylindrical positioning pins.

6. The special-shaped magnetic rubber composite lining plate mold according to claim 1 is characterized in that: The matrix insert includes a bottom plate and a plurality of transverse partitions and longitudinal partitions evenly staggered on the side surface of the bottom plate close to the top mold, the plate surfaces of the transverse partitions and longitudinal partitions are perpendicular to the plate surface of the bottom plate, and the transverse partitions, longitudinal partitions and bottom plate are divided to form a plurality of magnet installation positions distributed in a matrix.

7. The special-shaped magnetic rubber composite lining plate mold according to claim 2 is characterized in that: A plurality of first U-shaped grooves opening toward the top mold and connected to the mounting cavity are provided at the end of any frame close to the top mold along its length direction, and a second U-shaped groove opening toward the bottom mold is provided at a position corresponding to the first U-shaped groove, and the second U-shaped groove and the first U-shaped groove are combined to form a demolding hole.

8. The special-shaped magnetic rubber composite lining plate mold according to claim 2 is characterized in that: The cross section of the U-shaped groove along its extension direction is set to a trapezoidal structure, and the cross-sectional shape of the inverted T-shaped protruding structure of the frame is adapted to the cross-sectional shape of the U-shaped groove.

9. The special-shaped magnetic rubber composite lining plate mold according to claim 6, characterized in that: The top mold, frame unit and core mold are all made of stainless steel.

10. The special-shaped magnetic rubber composite lining plate mold according to claim 1, characterized in that: The outer side walls of the top mold and the bottom mold are both provided with lifting ears.

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