Foaming machine for producing rubber and plastic insulation board

Abstract

The utility model discloses a foaming machine for producing a rubber and plastic insulation board, which comprises a material head, a middle piece, a base, a first discharge nozzle and a machine core, the machine core is arranged in a through manner, one end of the machine core is provided with an external thread, the other end of the machine core is conical, the material head and the middle piece are internally provided with a feeding channel, and the first discharge nozzle is internally provided with a conical mixing cavity. The conical end of the machine core sequentially penetrates through the material head and the middle piece along the feeding channel and reaches the mixing cavity, a limiting opening is formed in the base and used for limiting the first discharging nozzle to the bottom of the middle piece, and a pouring gate is formed in the surface of the material head and communicates with the feeding channel. A space for molten rubber and plastic to pass through and reach the mixing cavity is formed between the machine core and the feeding channel, and the material head, the middle piece and the base are fixedly connected through a plurality of first bolts. The utility model aims to provide a foaming machine structure capable of effectively controlling feeding, mixing and discharging, and meanwhile, the sealing performance and the stability of equipment are ensured, so that the production efficiency and the product quality of rubber and plastic insulation boards are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to foaming machine field especially relates to a foaming machine for rubber and plastic insulation board production. BACKGROUND

[0002] The rubber and plastic raw material is mainly composed of polyurethane, polystyrene, polyethylene and other basic plastics and foaming agent, plasticizer, antioxidant, stabilizer and other chemical additives. The rubber and plastic insulation board is widely used in construction, transportation and other industries, and has good heat insulation performance as an effective insulation material. In the production process of the rubber and plastic insulation board, the foaming process is a key step. In order to improve the production efficiency and product quality, the design and optimization of the foaming machine equipment become an important research direction. The existing foaming equipment usually includes feeding part, foaming cavity, discharge port and other components, but in actual application, how to ensure the effective mixing and uniform foaming of the rubber and plastic raw material still faces many challenges. In addition, the sealing performance, stability of the equipment and the efficiency improvement in the production process are also the key factors affecting the performance of the foaming machine.

[0003] In order to solve these problems, a foaming machine structure capable of effectively controlling feeding, mixing and discharging is needed, which can ensure the sealing performance and stability of the equipment, thereby improving the production efficiency and product quality of the rubber and plastic insulation board. SUMMARY

[0004] The utility model aims at overcoming the insufficient prior art, and provides a foaming machine for rubber and plastic insulation board production.

[0005] To achieve the above-mentioned purpose, the following scheme is adopted:

[0006] A foaming machine for rubber and plastic insulation board production, the foaming machine includes material head, intermediate piece, base, first discharge nozzle, machine core, the machine core is provided with external thread in the middle, one end is provided with external thread, the other end is tapered, the end of the machine core with thread is used for connecting with foam input pipe, the material head, the intermediate piece has a feeding channel inside, the first discharge nozzle has a tapered foaming cavity inside, the tapered end of the machine core passes through the material head, the intermediate piece along the feeding channel in turn, and reaches the foaming cavity, the base is provided with a limiting port, the limiting port is used for limiting the first discharge nozzle at the bottom of the intermediate piece, the surface of the material head is provided with a sprue for connecting the output port of the rubber and plastic extruder, the sprue is communicated with the feeding channel, the space between the machine core and the feeding channel is used for the molten rubber and plastic to pass and reach the foaming cavity, the material head, the intermediate piece and the base are fixedly connected through a plurality of first bolts.

[0007] Further, the base is provided with a plurality of first through holes, the intermediate part is provided with a plurality of second through holes, the material head is provided with a plurality of first screw holes, and the first bolts are connected to the first screw holes after passing through the first through holes and the second through holes. The material head, the intermediate part and the base are connected through a plurality of first bolts, so that the equipment is convenient to assemble, debug and maintain, and the production efficiency and the service life of the parts are improved.

[0008] Further, the surface of the base is provided with a plurality of second screw holes communicating with the limiting openings, and the second screw holes are provided with second bolts. The first discharge nozzle can be fine-tuned and fixed by adjusting a plurality of second bolts.

[0009] Further, the feeding channel in the material head is inserted with a leakage prevention plug, the core passes through the leakage prevention plug and is connected with the leakage prevention plug through the external thread connection. The leakage prevention plug can prevent the feeding channel from leaking.

[0010] Further, the top of the core passes through a sealing piece, the sealing piece is provided with first nuts connected with the external thread connection at the top and the bottom, the material head is provided with two second screw holes at the top, the two ends of the sealing piece are respectively penetrated by third bolts, the two ends of the sealing piece are provided with second nuts connected with the third bolts at the top and the bottom, and the tail ends of the third bolts are connected with the second screw holes. The position of the sealing piece can be adjusted by adjusting the first nuts and the second nuts, so that the length of the external thread of the core exposed is adjusted, and the connection between the core and the foam input pipe is stable.

[0011] Further, the core comprises a column body and a second discharge nozzle, and the column body and the second discharge nozzle are threadedly connected. The second discharge nozzle can be replaced to adapt to different materials or products.

[0012] By adopting the above scheme, the foam machine for rubber and plastic insulation board production has the following beneficial effects:

[0013] The conical design of the core and the setting of the foaming cavity effectively promote the uniform mixing of rubber and plastic raw materials and foaming agents, ensure the uniformity and stability of the foam, and thus improve the quality of the final insulation board; the components such as the material head, the intermediate part and the base are connected through a plurality of bolts, so that the equipment is convenient to assemble, debug and maintain, the production efficiency and the service life of the equipment are improved; the first discharge nozzle is fixed by the base, and when different models of the first discharge nozzle are needed, the base can be easily replaced, which is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the foam machine for rubber and plastic insulation board production of the utility model;

[0015] Fig. 2 It is an exploded structural schematic view of the foam machine for rubber and plastic insulation board production of the utility model.

[0016] Fig. 3 The utility model discloses a foaming machine for rubber plastic insulation board production's sectional view.

[0017] Among them, the drawing mark explains:

[0018] 1, the head of material; 11, the gate; 12, the first screw hole; 2, the intermediate piece; 21, the second through hole; 3, the base; 31, the limit mouth; 32, the first through hole; 33, the second bolt; 4, the first discharge nozzle; 41, the foaming cavity; 5, the core; 51, the external thread; 52, the column body; 53, the second discharge nozzle; 6, the feeding channel; 7, the first bolt; 8, the leakproof plug; 91, the sealing piece; 92, the first nut; 93, the second nut; 94, the third bolt. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0020] Refer to Figs. 1-3 The utility model provides a kind of foaming machine for rubber plastic insulation board production, and foaming machine includes head of material 1, intermediate piece 2, base 3, first discharge nozzle 4, core 5, it is set in the core 5, its one end is provided with external thread 51, its other end is tapered, the one end of core 5 with thread is used to be connected with foam input pipe, head of material 1, intermediate piece 2 inside have feeding channel 6, first discharge nozzle 4 has tapered foaming cavity 41 in, the tapered one end of core 5 passes through head of material 1, intermediate piece 2 along feeding channel 6 in sequence, and reaches foaming cavity 41, base 3 is provided with limit mouth 31, limit mouth 31 is used to limit first discharge nozzle 4 in intermediate piece 2 bottom, head of material 1 surface is provided with the gate 11 for rubber plastic extruder output port connection, gate 11 is connected in feeding channel 6, space for molten rubber plastic to pass through and reach foaming cavity 41 is between core 5 to feeding channel 6, head of material 1, intermediate piece 2, base 3 are fixedly connected by multiple first bolt 7.

[0021] Base 3 is provided with multiple first through hole 32, intermediate piece 2 is provided with multiple second through hole 21, head of material 1 is provided with multiple first screw hole 12, first bolt 7 is connected in first screw hole 12 after passing through first through hole 32, second through hole 21. Head of material 1, intermediate piece 2, base 3 are connected by multiple first bolt 7, facilitate the assembly, debugging and maintenance of equipment, improve production efficiency and service life of part.

[0022] The surface of the base 3 is provided with a plurality of second screw holes communicating with limiting openings 31, and second bolts 33 are arranged in the second screw holes. By adjusting the plurality of second bolts 33, fine adjustment and fixation of the first discharge nozzle 4 can be achieved.

[0023] A leakage-proof plug 8 is inserted into the top of the feed channel 6 in the material head 1, the core 5 passes through the leakage-proof plug 8, and the leakage-proof plug 8 is connected to the core 5 through the external thread 51. The leakage-proof plug 8 can prevent leakage of the feed channel 6.

[0024] The top of the core 5 passes through a sealing sheet 91, the sealing sheet 91 is provided with first nuts 92 connected with the external thread 51 at the top and bottom, the material head 1 is provided with two second screw holes, the two ends of the sealing sheet 91 are respectively penetrated by third bolts 94, and the two ends of the sealing sheet 91 are provided with second nuts 93 connected with the third bolts 94 at the top and bottom, and the tail ends of the third bolts 94 are also connected with the second screw holes. By adjusting the first nuts 92 and the second nuts 93, the position of the sealing sheet 91 can be adjusted, and then the length of the exposed external thread 51 of the core 5 is adjusted, so that the connection between the core 5 and the foam input pipe is stable.

[0025] The core 5 includes a column body 52 and a second discharge nozzle 53, and the column body 52 and the second discharge nozzle 53 are threadedly connected. The second discharge nozzle 53 can be conveniently replaced to adapt to different materials or products.

[0026] Working principle:

[0027] In operation, the exposed external thread 51 of the core 5 is connected with the foam input pipe, the sprue 11 is connected with the extruder, the foam reaches the outlet of the second discharge nozzle 53 along the inside of the core 5, reaches the foaming cavity 41 inside the first discharge nozzle 4, at the same time, molten rubber and plastic material is injected into the sprue 11, reaches the foaming cavity 41 along the space between the feed channel 6 and the core 5, and is sprayed from the outlet of the first discharge nozzle 4 after mixing, and is injected into a mold to form a rubber and plastic insulation board.

[0028] Advantages:

[0029] The tapered design of the core 5 and the arrangement of the foaming cavity 41 effectively promote the uniform mixing of rubber and plastic raw materials and foaming agents, ensure the uniformity and stability of the foam, and thus improve the quality of the final insulation board; the components such as the material head 1, the intermediate part 2, and the base 3 are connected by a plurality of bolts, which facilitates the assembly, debugging, and maintenance of the equipment, improves the production efficiency and service life of the equipment; the first discharge nozzle 4 is fixed by the base 3, and when a first discharge nozzle 4 of a different model is needed, the base 3 can be easily replaced after being removed, which is convenient to use.

[0030] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A foaming machine for producing rubber-plastic insulation board, characterized by, The foaming machine comprises a material head, an intermediate part, a base, a first discharge nozzle, a core, the core is provided with an outer thread at one end and is tapered at the other end, the threaded end of the core is used to connect with a foam input pipe, the material head and the intermediate part are internally provided with a feeding channel, the first discharge nozzle is internally provided with a tapered foaming cavity, the tapered end of the core passes through the material head and the intermediate part along the feeding channel in sequence and reaches the foaming cavity, the base is provided with a limiting opening, the limiting opening is used to limit the first discharge nozzle at the bottom of the intermediate part, the surface of the material head is provided with a gate used to connect with an output opening of an rubber extruder, the gate is communicated with the feeding channel, the core and the feeding channel have a space for molten rubber to pass through and reach the foaming cavity, the material head, the intermediate part and the base are fixedly connected through a plurality of first bolts.

2. The foaming machine for producing rubber-plastic thermal insulation board according to claim 1, characterized in that, The base is provided with a plurality of first through holes, the intermediate part is provided with a plurality of second through holes, the material head is provided with a plurality of first screw holes, and the first bolts are connected to the first screw holes after passing through the first through holes and the second through holes.

3. The foaming machine for producing rubber plastic insulation board according to claim 1, characterized in that, The surface of the base is provided with a plurality of second screw holes communicated with the limiting opening, and the second screw holes are provided with second bolts.

4. The foaming machine for producing rubber plastic thermal insulation board according to claim 1, characterized in that, A leakage-proof plug is inserted into the top of the feeding channel in the material head, the core passes through the leakage-proof plug and is connected with the leakage-proof plug through the outer thread.

5. The foaming machine for producing rubber plastic thermal insulation board according to claim 1, characterized in that, The top of the core passes through a sealing sheet, the sealing sheet is provided with first nuts connected with the outer thread at the top and bottom, the top of the material head is provided with two second screw holes, the two ends of the sealing sheet are respectively penetrated by third bolts, the two ends of the sealing sheet are provided with second nuts connected with the third bolts at the top and bottom, and the tail ends of the third bolts are also connected with the second screw holes.

6. The foaming machine for producing rubber plastic thermal insulation board according to claim 1, characterized in that, The core comprises a column body and a second discharge nozzle, and the column body and the second discharge nozzle are threadedly connected.

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