Embossment rubber and plastic thermal insulation pipe and preparation device

Abstract

The utility model relates to the field of rubber and plastic heat preservation materials, in particular to an embossment rubber and plastic heat preservation pipe and a manufacturing device, the embossment rubber and plastic heat preservation pipe comprises a rubber and plastic pipe body, and embossment protruding edges and embossment printing are arranged on the outer wall of the rubber and plastic pipe body; the preparation device comprises an outer mold and a roller, the outer mold is arranged on an extruder head, a mold cavity is formed in the outer mold, a plurality of mold carving grooves are formed in the inner wall of the mold cavity in the circumferential direction, an inner core mold is arranged in the mold cavity, and a gap between the inner core mold and the mold cavity forms an extrusion molding channel; and an embossment gravure groove is formed in the outer wall of the roller. According to the preparation device, the embossment pattern can be formed through extrusion molding and rolling, the production efficiency can be effectively improved, and the production cost is reduced; the embossment pattern on the processed rubber and plastic thermal insulation pipe is firm, wear-resistant and high in recognizability, and the flame retardance and thermal insulation and sound insulation performance of the material cannot be influenced; and meanwhile, the rubber tube sheath ensures that the roller bears the rolling stress in the embossing process, and ensures that the material is uniformly stressed and does not deform in the pattern rolling process.

Description

Technical Field

[0001] The utility model relates to the field of rubber and plastic thermal insulation materials, in particular to an embossed rubber and plastic thermal insulation pipe and a preparation device thereof. Background Art

[0002] The surface of the existing rubber-plastic pipes is smooth and flat, and the product logo patterns are printed or manually pasted later; the logo patterns processed by printing technology have poor surface adhesion, poor aging resistance, are easy to wipe off, and have no decoration and recognizability; the logo patterns that are manually pasted later have high labor intensity on-site manual pasting, uneven surface, are not firm and easy to fall off, and have low production efficiency. At the same time, rubber-plastic pipes are flame-retardant materials, and the flame retardant properties of the decorative materials and adhesive materials pasted later are poor, which reduces the overall fire resistance. Utility Model Content

[0003] Based on the above problems, the purpose of the utility model is to provide an embossed rubber-plastic insulation pipe and a preparation device. The utility model adopts the following technical solutions:

[0004] The utility model provides a device for preparing an embossed rubber-plastic thermal insulation pipe, comprising:

[0005] An outer mold, the outer mold is arranged on the extruder head, a mold cavity is opened in the outer mold, a plurality of mold grooves are arranged on the inner wall of the mold cavity along the circumferential direction, the mold grooves are in the shape of long strips, an inner core film is arranged in the mold cavity, the end of the inner core film extends to the outside of the mold cavity, and the gap between the inner core film and the mold cavity forms an extrusion channel;

[0006] A roller, an outer wall of which is provided with an embossed gravure groove, the roller is arranged at the discharge end of the mold cavity, the roller corresponds to the extended portion of the inner core film, and the wheel axle of the roller is perpendicular to the extension direction of the end of the inner core film.

[0007] Preferably, a stepped mounting hole is provided at the discharge port of the extruder head;

[0008] A flange is provided at the head end of the inner core film, and an extrusion hole is provided on the flange, and the extrusion hole is correspondingly connected to the mold cavity;

[0009] An annular limiting platform is arranged on the outer wall of the first end of the outer mold;

[0010] The flange and the annular limiting platform are sequentially arranged in the mounting hole, the outer end of the mounting hole is connected with a fixing sleeve via a threaded structure, the fixing sleeve abuts against the annular limiting platform, and the annular limiting platform abuts against the flange.

[0011] Preferably, the roller is rotatably connected to a wheel frame, and the wheel frame is connected and mounted on the extruder head.

[0012] Preferably, a hose sheath is arranged on the outer side of the inner core membrane extension portion, and an escape opening is arranged at a position of the hose sheath corresponding to the roller; a plurality of molded guide grooves are arranged on the inner wall of the hose sheath, and the molded guide grooves correspond one-to-one to the molded grooves.

[0013] Preferably, the hose sheath is connected to the extruder head via a sheath bracket.

[0014] The present embodiment also provides an embossed rubber-plastic thermal insulation pipe manufactured by using the above-mentioned embossed rubber-plastic thermal insulation pipe preparation device, comprising a rubber-plastic pipe body, the outer wall of which is circumferentially provided with a plurality of embossed ridges, the length direction of which extends axially along the rubber-plastic pipe body; and the outer wall of the rubber-plastic pipe body is provided with an embossed printing.

[0015] Preferably, the embossed print is a trademark logo.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are:

[0017] The preparation device in the utility model can extrude and roll to form a relief pattern, which can effectively improve production efficiency and reduce production costs; at the same time, the relief pattern on the rubber-plastic insulation pipe is firm and wear-resistant, with high recognition, and the relief and the rubber-plastic body are integrally formed, which will not affect the flame retardancy and thermal insulation and sound insulation properties of the material; at the same time, the hose sheath ensures that the roller embossing process bears the roller pressure stress, and ensures that the material is evenly stressed and not deformed during the rolling pattern process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic structural diagram of a device for preparing an embossed rubber-plastic thermal insulation pipe in Embodiment 1 of the present utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the outer mold in the first embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the processing and extrusion process of the embossed rubber-plastic insulation pipe through the preparation device in Example 1 of the utility model;

[0022] Figure 4 It is a schematic structural diagram of a device for preparing an embossed rubber-plastic insulation pipe in Embodiment 2 of the present utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. outer mold; 101. annular limit platform; 2. mold cavity; 3. molded groove; 4. inner core membrane; 401. flange; 402. extrusion hole; 5. extruder head; 501. mounting hole; 6. roller; 7. embossed gravure groove; 8. wheel frame; 9. rubber-plastic pipe body; 901. embossed ridges; 902. embossed printing; 10. hose sheath; 1001. avoidance; 1002. molded guide groove; 11. sheath bracket; 12. fixing sleeve. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1

[0026] like Figure 1 As shown, in this embodiment, a device for preparing an embossed rubber-plastic insulation pipe is disclosed, including an outer mold 1 and a roller 6. The outer mold 1 is arranged on an extruder head 5. A mold cavity 2 is provided in the outer mold 1. The inner wall of the mold cavity 2 is provided with a plurality of mold grooves 3 along the circumferential direction. The mold grooves 3 are in the shape of long strips. An inner core film 4 is provided in the mold cavity 2. The end of the inner core film 4 extends to the outside of the mold cavity 2. The gap between the inner core film 4 and the mold cavity 2 forms an extrusion channel. An embossed gravure groove 7 is provided on the outer wall of the roller 6. The roller 6 is arranged at the discharge end of the mold cavity 2. The roller 6 corresponds to the extension of the inner core film 4. The wheel axle of the roller 6 is perpendicular to the extension direction of the end of the inner core film 4. The roller 6 is rotatably connected to the wheel frame 8, and the wheel frame 8 is connected and installed on the extruder head 5.

[0027] like Figure 2 As shown, in this embodiment, a stepped mounting hole 501 is provided at the discharge port of the extruder head 5; a flange 401 is provided at the head end of the inner core membrane 4, and an extrusion hole 402 is provided on the flange 401, and the extrusion hole 402 is correspondingly connected to the mold cavity 2; an annular limit platform 101 is provided on the outer wall of the head end of the outer mold 1; the flange 401 and the annular limit platform 101 are sequentially arranged in the mounting hole 501, and the outer end of the mounting hole 501 is connected with a fixing sleeve 12 through a threaded structure, the fixing sleeve 12 is against the annular limit platform 101, and the annular limit platform 101 is against the flange 401.

[0028] like Figure 3As shown, this embodiment also discloses an embossed rubber-plastic insulation pipe processed by the above-mentioned embossed rubber-plastic insulation pipe preparation device, the embossed rubber-plastic insulation pipe mainly includes a rubber-plastic pipe body 9, the outer wall of the rubber-plastic pipe body 9 is provided with a plurality of embossed ridges 901 along the circumferential direction, and the length direction of the embossed ridges 901 extends along the axial direction of the rubber-plastic pipe body 9; an embossed print 902 is provided on the outer wall of the rubber-plastic pipe body 9. The embossed print 902 can be located between two embossed ridges 901, avoiding the embossed ridges 901; or the embossed print 902 can be rolled on the embossed ridges 901. The embossed ridges 901 and the embossed print 902 are combined to form a composite embossed pattern. Among them, the embossed print 902 can be a trademark logo.

[0029] The process for making embossed rubber-plastic insulation pipe is as follows: the outer mold 1 and the inner core film 4 are squeezed and fixed in the mounting hole 501 of the extruder head 5 by the fixing sleeve 12 in advance, the raw materials are accurately weighed and proportioned, mixed in an internal mixer, put into an open mixer for continuous rolling and mixing, and the film is made and passed through a cold feed extruder, extruded from the extruder head 5 and enters the extrusion channel through the extrusion hole 402. During the extrusion process, a rubber-plastic pipe body 9 is formed through the extrusion channel, embossed ridges 901 are formed through the die-engraved grooves 3, and embossed prints 902 are formed on the rubber-plastic pipe body 9 through the roller 6 and the extension of the inner core film 4. The rubber-plastic pipe body 9 formed by extrusion finally has embossed ridges 901 and embossed prints 902. Then, the rubber-plastic pipe body 9 continuously enters the foaming furnace for vulcanization and foaming, and is then cooled and cut into the products for packaging and storage.

[0030] Embodiment 2

[0031] This embodiment adds a hose sheath 10 based on the technology of the first embodiment. Figure 4 As shown, a hose sheath 10 is arranged outside the extension of the inner core film 4, and a avoidance opening 1001 is arranged at a position corresponding to the roller 6. A plurality of molded guide grooves 1002 are arranged on the inner wall of the hose sheath 10, and the molded guide grooves 1002 correspond to the molded grooves 3 one by one.

[0032] During operation, the rubber hose sheath 10 cooperates with the extension of the inner core film 4 to bear the rolling stress of the roller 6, ensuring that the material is evenly stressed and does not deform during the rolling pattern process.

[0033] In this embodiment, the hose sheath 10 is connected to the extruder head 5 via a sheath bracket 11 .

[0034] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for preparing an embossed rubber-plastic insulation pipe, characterized in that: include: An outer mold (1), the outer mold (1) is arranged on an extruder head (5), a mold cavity (2) is opened in the outer mold (1), a plurality of mold grooves (3) are arranged on the inner wall of the mold cavity (2) along the circumferential direction, the mold grooves (3) are in the shape of long strips, an inner core film (4) is arranged in the mold cavity (2), the end of the inner core film (4) extends to the outside of the mold cavity (2), and the gap between the inner core film (4) and the mold cavity (2) forms an extrusion channel; A roller (6), wherein an embossed gravure groove (7) is arranged on the outer wall of the roller (6), the roller (6) is arranged at the discharge end of the mold cavity (2), the roller (6) corresponds to the extended portion of the inner core film (4), and the axle of the roller (6) is perpendicular to the extension direction of the end of the inner core film (4).

2. The device for preparing the embossed rubber-plastic thermal insulation pipe according to claim 1 is characterized in that: A stepped mounting hole (501) is provided at the discharge port of the extruder head (5); A flange (401) is provided at the head end of the inner core membrane (4), and an extrusion hole (402) is provided on the flange (401), and the extrusion hole (402) is correspondingly connected to the mold cavity (2); An annular limiting platform (101) is provided on the outer wall of the head end of the outer mold (1); The flange (401) and the annular limiting platform (101) are sequentially arranged in the mounting hole (501); the outer end of the mounting hole (501) is connected to a fixing sleeve (12) via a threaded structure; the fixing sleeve (12) abuts against the annular limiting platform (101); and the annular limiting platform (101) abuts against the flange (401).

3. The device for preparing the embossed rubber-plastic thermal insulation pipe according to claim 2 is characterized in that: The roller (6) is rotatably connected to a wheel frame (8), and the wheel frame (8) is connected and installed on the extruder head (5).

4. The device for preparing the embossed rubber-plastic thermal insulation pipe according to claim 2, characterized in that: A hose sheath (10) is arranged on the outer side of the extension portion of the inner core membrane (4), and an escape opening (1001) is arranged at a position of the hose sheath (10) corresponding to the roller (6); a plurality of molded guide grooves (1002) are arranged on the inner wall of the hose sheath (10), and the molded guide grooves (1002) correspond one-to-one to the molded grooves (3).

5. The device for preparing the embossed rubber-plastic thermal insulation pipe according to claim 4 is characterized in that: The hose sheath (10) is connected to the extruder head (5) via a sheath bracket (11).

6. An embossed rubber-plastic thermal insulation pipe manufactured by using the embossed rubber-plastic thermal insulation pipe manufacturing device as claimed in claim 1 or 4, characterized in that: The invention comprises a rubber-plastic tube body (9), wherein the outer wall of the rubber-plastic tube body (9) is provided with a plurality of embossed ridges (901) along the circumferential direction, and the length direction of the embossed ridges (901) extends along the axial direction of the rubber-plastic tube body (9); and an embossed print (902) is provided on the outer wall of the rubber-plastic tube body (9).

7. The embossed rubber-plastic thermal insulation pipe according to claim 6, characterized in that: The embossed print (902) is a trademark logo.

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