A polyurethane doctor blade processing die

Abstract

The utility model discloses a kind of polyurethane doctor blade processing mould, it includes: base, the top side middle part of the base is fixedly connected with first mould seat, the right upper portion of the first mould seat is slidably fitted with second mould seat, mould groove is opened between the second mould seat and first mould seat, the top outside of the mould groove is erected with frame, the inboard of the frame is slidably fitted with panel, the bottom of the panel is equidistantly fixed with several embedded rods, the embedded rod is downwardly inserted into mould groove interior, the mould groove is poured with shaped doctor blade, the shaped doctor blade is fixed with embedded rod correspondingly, by being set panel is cooperated with several embedded rods to block injection port, while being embedded in liquid raw material, it is cooled and shaped together, obtain integrated composite doctor blade structure, by external metal panel welding metal arc-shaped plate and metal installation groove frame to be bolted with sweeper equipment, improve the wear resistance after its threaded connection.

Description

Technical Field

[0001] This utility model relates to the field of scraper mold technology, and in particular to a polyurethane scraper processing mold. Background Technology

[0002] Polyurethane scrapers come in many types, all made of polyurethane composite materials and integrally vulcanized using a mold. The scraper surface is flat, with good straightness, low friction, high wear resistance, and high strength, providing stable scraping performance. They effectively remove fine particles and wet, sticky materials from conveyor belts. A pre-compression regulator ensures stable contact pressure between the scraper and the belt. The scraper surface consists of multiple narrow polyurethane scraper blades with hollow buffer holes, providing excellent belt following. Suitable for conveyor belts in various industries such as power, metallurgy, and mining. When common polyurethane scrapers are injection molded into one piece using molds, a groove is often reserved at the tail end for matching and installation with a cleaner. The common installation method is to fix them with several bolts. However, the metal bolts and the inner wall material of the scraper will wear down during installation, removal and use, causing the threaded connection to loosen, which in turn reduces the product's service life and stability. Utility Model Content

[0003] The purpose of this utility model is to provide a polyurethane scraper processing mold that can improve the wear resistance of its threaded connection, avoid direct contact and wear on the scraper body, improve the stability of the product after installation and extend its service life.

[0004] To achieve the above objectives, a polyurethane scraper processing mold is provided, comprising: a base, a first mold base fixedly connected to the top center of the base, a second mold base slidably fitted onto the upper right side of the first mold base, a mold groove formed between the second mold base and the first mold base, the mold groove extending upward through the first mold base and the second mold base, an electric cylinder mounted on the right side of the second mold base, the left output end of the electric cylinder being fixedly connected to the second mold base, a housing fixedly nested on the outer side of the electric cylinder, L-shaped support rods symmetrically fixed at the bottom of the housing, the left ends of the L-shaped support rods being fitted and fixedly engaged with the first mold base, a frame mounted on the top outer side of the mold groove, the bottom left side of the frame being fixedly connected to the first mold base, and the bottom right side of the frame being fixedly connected to the second mold base. The frame has a sliding fit, with a panel slidingly fitted inside. Several rods are fixed at equal intervals at the bottom of the panel, extending downwards into the mold groove. A shaping scraper is poured into the mold groove, and the scraper is fixedly fitted to the rods. An arc-shaped plate is fixedly connected to the top left side of the panel, and a mounting bracket is fixedly connected to the left side of the arc-shaped plate. By setting the panel and several rods to seal the injection port while simultaneously embedding it into the liquid raw material, it cools and solidifies together, resulting in an integrated composite scraper structure. The external metal panel is welded with a metal arc-shaped plate and a metal mounting bracket for bolt connection with the cleaning device, improving the wear resistance after threaded connection, avoiding direct contact and wear on the scraper body, improving the stability of the product after installation, and extending its service life.

[0005] According to the polyurethane scraper processing mold, the insert plate, insert rod, arc plate, and mounting bracket are all made of wear-resistant metal material. This ensures wear resistance and connection strength when installed with the sweeper.

[0006] According to the polyurethane scraper processing mold, a plurality of insert rings are fixed at equal intervals on the outer side of the insert rod. This improves the fitting strength with the shaped scraper after cooling and prevents loosening.

[0007] According to the polyurethane scraper processing mold, a placement frame is slidably fitted into the bottom of the mounting slot frame. Several support rods are symmetrically fixed to the bottom of the placement frame in a cross shape, and the bottom ends of each support rod are fixedly connected to the first mold base. This facilitates accurate positioning of the mounting slot frame and its connecting structure, avoiding deviations.

[0008] According to the polyurethane scraper processing mold, a water-cooling device is mounted on the upper left side of the first mold base. The right side of the water-cooling device is connected to a first water-cooling channel that extends into the interior of the first mold base to cool and shape the injection molding material in the mold groove. The top of the water-cooling device is symmetrically connected to second water-cooling channels that extend into the interior of the second mold base to cool and shape the injection molding material in the mold groove. The middle section of the second water-cooling channel uses a retractable tube. This provides a highly efficient water-cooling and shaping effect.

[0009] According to the polyurethane scraper processing mold, the bottom of the base is fitted with an anti-slip rubber pad to maintain the overall anti-slip stability of the mold when placed.

[0010] According to the polyurethane scraper processing mold, a number of positioning pins are symmetrically fixed on the left side of the second mold base. The positioning pins are equidistantly distributed vertically and correspondingly slide and engage with the first mold base to the left. This ensures accurate and stable mold closing between the two mold bases.

[0011] According to the polyurethane scraper processing mold, an inlet / outlet is pre-reserved at the center of the right side of the housing. This facilitates the connection of the electric cylinder's connecting pipe.

[0012] The above solution has beneficial effects: In this invention, by setting up a panel and several insert rods to block the injection port, the panel is embedded in the liquid raw material and cooled and solidified together, resulting in an integrated composite scraper structure. The external metal panel is welded with a metal arc plate and a metal mounting bracket to be bolted to the cleaning device, which improves the wear resistance after the threaded connection, avoids direct contact and wear on the scraper body, improves the stability of the product after installation and extends its service life.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of a polyurethane scraper processing mold according to this utility model; Figure 2 This is a schematic diagram of the mold opening of the first mold base and the second mold base in a polyurethane scraper processing mold according to the present invention; Figure 3 This is a schematic diagram of the mold groove in a polyurethane scraper processing mold according to the present invention; Figure 4 This is a schematic diagram of the connection structure of the insert plate in a polyurethane scraper processing mold according to the present invention.

[0015] Legend: 1. Base; 2. First mold base; 3. Second mold base; 4. Mold groove; 5. Electric cylinder; 6. Shell; 7. L-shaped support rod; 8. Frame; 9. Panel; 10. Insert rod; 11. Shaping scraper; 12. Curved plate; 13. Mounting slot frame; 14. Placement rack; 15. Support rod; 16. Water cooling equipment; 17. First water cooling channel; 18. Second water cooling channel; 19. Anti-slip rubber pad; 20. Positioning pin. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] Reference Figure 1-4 This utility model provides a polyurethane scraper processing mold, including: a base 1, with an anti-slip pad 19 fixedly attached to the bottom of the base 1; a first mold base 2 fixedly connected to the top center of the base 1; a second mold base 3 slidably fitted to the upper right of the first mold base 2; several positioning pins 20 symmetrically fixed to the left side of the second mold base 3, the positioning pins 20 being equidistantly distributed vertically and correspondingly slidingly fitted to the first mold base 2 to the left; a mold groove 4 being provided between the second mold base 3 and the first mold base 2, the mold groove 4 penetrating upwards through the first mold base 2 and the second mold base 3; an electric cylinder 5 mounted on the right side of the second mold base 3, the left output end of the electric cylinder 5 being fixedly connected to the second mold base 3; a housing 6 nested and fixed to the outside of the electric cylinder 5, with an inlet and outlet reserved at the center of the right side of the housing 6; and L-shaped support rods 7 symmetrically fixed to the bottom of the housing 6, the left ends of which are fitted and fixed to the first mold base 2, enabling automated mold opening and closing, ensuring safety, stability, and high efficiency.

[0018] A frame 8 is mounted on the top outer side of the mold groove 4. The bottom left side of the frame 8 is fixedly connected to the first mold base 2, and the bottom right side of the frame 8 is slidably fitted to the second mold base 3. A panel 9 is slidably fitted into the inner side of the frame 8. Several insert rods 10 are fixed at equal intervals at the bottom of the panel 9. The insert rods 10 extend downward into the mold groove 4. Several insert rings are fixed at equal intervals on the outer side of the insert rods 10. A shaping scraper 11 is poured into the mold groove 4. The shaping scraper 11 is fitted and fixed to the insert rods 10. While sealing the injection port, it is embedded in the liquid raw material and cooled and shaped together to obtain an integrated composite scraper structure. It is then externally installed by the metal structure to avoid damage to the plastic.

[0019] An arc-shaped plate 12 is fixedly connected to the top left side of the panel 9. An installation slot 13 is fixedly connected to the left side of the arc-shaped plate 12. A placement frame 14 is slidably fitted into the bottom of the installation slot 13. Several support rods 15 are symmetrically fixed to the bottom of the placement frame 14. The bottom ends of the support rods 15 are all fixedly connected to the first mold base 2. The panel 9, the rods 10, the arc-shaped plate 12 and the installation slot 13 are all made of wear-resistant metal material to assist in positioning and placement and to make more stable threaded connection and fixation.

[0020] A water-cooling device 16 is mounted on the upper left side of the first mold base 2. The right side of the water-cooling device 16 is connected to a first water-cooling channel 17, which extends into the interior of the first mold base 2 to cool and solidify the injection molding material in the mold groove 4. The top of the water-cooling device 16 is symmetrically connected to a second water-cooling channel 18, which extends into the interior of the second mold base 3 to cool and solidify the injection molding material in the mold groove 4. The middle part of the second water-cooling channel 18 is made of a telescopic pipe, which adds a circulating water-cooling passage to the existing water-cooling device to fully cool and solidify the material in the mold.

[0021] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0022] Working principle: In this utility model, by setting up a panel 9 and a number of insert rods 10 to block the injection port, the panel is embedded in the liquid raw material and cooled and solidified together, resulting in an integrated composite scraper structure. The external metal panel 9 is welded with a metal arc plate 12 and a metal mounting bracket 13 to be bolted to the cleaning device, which improves the wear resistance after the threaded connection, avoids direct contact and wear on the scraper body, improves the stability of the product after installation and extends its service life.

[0023] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A polyurethane scraper processing mold, comprising: The base (1) is characterized in that a first mold base (2) is fixedly connected to the middle of the top side of the base (1), a second mold base (3) is slidably fitted to the upper right side of the first mold base (2), a mold groove (4) is provided between the second mold base (3) and the first mold base (2), the mold groove (4) passes through the first mold base (2) and the second mold base (3) upward, an electric cylinder (5) is mounted on the right side of the second mold base (3), the left output end of the electric cylinder (5) is fixedly connected to the second mold base (3), a shell (6) is nested and fixed on the outside of the electric cylinder (5), and L-shaped support rods (7) are symmetrically fixed at the bottom of the shell (6), and the left ends of the L-shaped support rods (7) are all fitted and fixed to the first mold base (2); A frame (8) is mounted on the top outer side of the mold groove (4). The bottom left side of the frame (8) is fixedly connected to the first mold base (2). The bottom right side of the frame (8) is slidably attached to the second mold base (3). A panel (9) is slidably fitted into the inner side of the frame (8). Several rods (10) are fixed at equal intervals at the bottom of the panel (9). The rods (10) extend downward into the mold groove (4). A shaping scraper (11) is poured into the mold groove (4). The shaping scraper (11) is fitted and fixed to the rods (10). An arc plate (12) is fixedly connected to the top left side of the panel (9). An installation slot frame (13) is fixedly connected to the left side of the arc plate (12).

2. The polyurethane scraper processing mold according to claim 1, characterized in that, The panel (9), the rod (10), the arc plate (12), and the mounting bracket (13) are all made of wear-resistant metal materials.

3. The polyurethane scraper processing mold according to claim 1, characterized in that, The outer side of the insert rod (10) is fixed with several insert rings at equal intervals.

4. The polyurethane scraper processing mold according to claim 1, characterized in that, The bottom of the mounting slot (13) is fitted with a placement frame (14) that slides up and down. The bottom of the placement frame (14) is symmetrically fixed with several support rods (15), and the bottom ends of the support rods (15) are all fixedly connected to the first mold base (2).

5. A polyurethane scraper processing mold according to claim 1, characterized in that, A water cooling device (16) is mounted on the upper left side of the first mold base (2). The right side of the water cooling device (16) is connected to a first water cooling channel (17) and extends into the interior of the first mold base (2) to cool and shape the injection molding material in the mold groove (4). The top of the water cooling device (16) is symmetrically connected to a second water cooling channel (18) and extends into the interior of the second mold base (3) to cool and shape the injection molding material in the mold groove (4). The middle part of the second water cooling channel (18) is made of a telescopic pipe.

6. The polyurethane scraper processing mold according to claim 1, characterized in that, The bottom of the base (1) is fitted with an anti-slip pad (19).

7. The polyurethane scraper processing mold according to claim 1, characterized in that, The second mold base (3) has several positioning pins (20) fixed symmetrically on the left side. The positioning pins (20) are distributed at equal intervals up and down and are correspondingly engaged and slidably connected to the first mold base (2) to the left.

8. A polyurethane scraper processing mold according to claim 1, characterized in that, An inlet / outlet is reserved at the center of the right side of the casing (6).

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