Extrusion die convenient to replace and used for heat insulation strip production

Abstract

The utility model relates to the technical field of extrusion dies, in particular to a convenient-to-replace extrusion die for producing a heat insulation strip. According to the technical scheme, the mold comprises a mold shell and a replacement inner core, an adaptive hole is formed in the center of the mold shell, a mold hole is formed in the center of the replacement inner core, the replacement inner core is inserted into the adaptive hole, and a fixing assembly is arranged between the replacement inner core and the side wall of the adaptive hole. A cooling water tank is formed in the mold shell and located on the periphery of the adaptive hole, and a water pipe connector is fixed to the position, corresponding to the cooling water tank, of the outer surface of the mold shell. The whole mold is arranged to be of a combined structure of the mold shell and the replaceable inner core, only the replaceable inner core needs to be replaced during replacement, the weight is reduced, a large number of water cooling pipes on the surface of the mold do not need to be replaced or dismantled, the operation difficulty is lowered, the operation steps are reduced, and finally the purpose of improving efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion dies, in particular to an extrusion die for producing heat insulation strips which is easy to replace. Background Art

[0002] Extrusion dies are key tools used in plastic extrusion molding, which are usually made of metal materials such as steel or aluminum alloy and custom designed according to the shape and size of the desired product.

[0003] In the process of producing thermal insulation strips, the extrusion die is mainly installed at the end of the extruder, so that the hot-melt material passes through the groove in the die and is cooled at the same time, so that the extruded strip product can be the same shape as the groove. Therefore, when processing different thermal insulation strips, it is necessary to replace the extrusion die with different grooves. On this basis, if the entire mold is replaced, it will not only cause a larger weight during replacement, but also because the mold needs to be cooled, more water-cooling pipes will be connected to the outer surface of the mold. When replacing, it also needs to be completely disassembled, which is relatively troublesome to operate, resulting in reduced replacement efficiency. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and to provide an extrusion die for producing heat insulation strips which is easy to replace.

[0005] The technical solution of the utility model: an extrusion die for producing thermal insulation strips that is easy to replace, comprising a die shell and a replaceable inner core, an adaption hole is provided at the center of the die shell, a mold hole is provided at the center of the replaceable inner core, the replaceable inner core is inserted into the adaption hole, a fixing component is provided between the replaceable inner core and the side wall of the adaption hole, a cooling water trough is provided in the die shell and at the periphery of the adaption hole, and a water pipe connector is fixed on the outer surface of the die shell and at a position corresponding to the cooling water trough.

[0006] Preferably, the fixing assembly includes a fixing groove, a fixing block and a knob, the fixing grooves are opened on both sides of the replacement inner core and are symmetrically distributed, the fixing block is installed on the side wall of the adapter hole and its position corresponds to the fixing groove, and the knob is rotatably connected to the outer side wall of the mold shell and its position is aligned with the fixing block.

[0007] Preferably, a sliding groove is provided on the side wall of the adapter hole at a position corresponding to the fixed block, the inner wall of the sliding groove is rotatably connected to a threaded sleeve, one end of the outer side of the threaded sleeve is fixed on the knob, the inner thread of the threaded sleeve is connected to a threaded rod, and the end of the threaded rod is fixed on the fixed block.

[0008] Preferably, a limiting plate is fixed at the connection between the fixing block and the threaded rod, and the limiting plate is a square structure and is slidably connected in the sliding groove.

[0009] Preferably, heat-conducting top blocks are installed on the upper and lower sides of the replacement inner core, and a telescopic groove is opened on the outer surface of the replacement inner core at a position corresponding to the heat-conducting top block. A telescopic spring is fixed between the inner wall of the telescopic groove and the heat-conducting top block to ensure that the heat of the replacement inner core can be smoothly transferred to the mold shell.

[0010] Preferably, positioning side plates are fixed on both sides of the front end of the replacement inner core, and mounting side plates are fixed on the four corners of the bottom of the mold shell.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects: the entire mold is arranged as a combination structure of a mold outer shell and a replaceable inner core. When replacing, only the replaceable inner core needs to be replaced, which not only reduces the weight, but also eliminates the need to replace and remove a large number of water-cooling pipes on the mold surface, thereby reducing the difficulty of operation and the number of operating steps, and ultimately achieving the purpose of improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the combined structure of the mold shell and different replacement inner cores of the utility model;

[0013] Figure 2 This is a schematic diagram of the front cutaway structure of the mold shell of the utility model;

[0014] Figure 3 This is a front cutaway structural diagram of a replacement inner core of the utility model;

[0015] Figure 4 It is a schematic diagram of the combined structure of the threaded rod and the fixing block of the utility model.

[0016] Figure numerals: 1. mold shell; 11. mounting side plate; 12. cooling water tank; 13. water pipe connector; 2. replacement inner core; 21. mold hole; 22. heat-conducting top block; 23. positioning side plate; 24. telescopic slot; 25. telescopic spring; 3. adapter hole; 4. fixing component; 41. fixing slot; 42. fixing block; 43. sliding slot; 44. threaded sleeve; 45. threaded rod; 46. limit plate; 47. knob. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Example

[0019] like Figure 1-4As shown, the utility model proposes an extrusion die for producing heat insulation strips which is easy to replace, comprising a die shell 1 and a replacement inner core 2, an adapting hole 3 is provided at the center of the die shell 1, a mold hole 21 is provided at the center of the replacement inner core 2, the replacement inner core 2 is inserted into the adapting hole 3, a fixing component 4 is provided between the replacement inner core 2 and the side wall of the adapting hole 3, a cooling water trough 12 is provided in the die shell 1 and located at the periphery of the adapting hole 3, a water pipe connector 13 is fixed on the outer surface of the die shell 1 and at a position corresponding to the cooling water trough 12, heat-conducting top blocks 22 are installed on the upper and lower sides of the replacement inner core 2, a telescopic groove 24 is provided on the outer surface of the replacement inner core 2 and at a position corresponding to the heat-conducting top block 22, a telescopic spring 25 is fixed between the inner side wall of the telescopic groove 24 and the heat-conducting top block 22, positioning side plates 23 are fixed on both sides of the front end of the replacement inner core 2, and mounting side plates 11 are fixed at the four corners of the bottom of the die shell 1.

[0020] The fixing assembly 4 includes a fixing groove 41, a fixing block 42 and a knob 47. The fixing groove 41 is provided on both sides of the replacement inner core 2 and is symmetrically distributed. The fixing block 42 is installed on the side wall of the adapter hole 3 and its position corresponds to the fixing groove 41. The knob 47 is rotatably connected to the outer wall of the mold shell 1 and its position is aligned with the fixing block 42. A sliding groove 43 is provided on the side wall of the adapter hole 3 and at a position corresponding to the fixing block 42. A threaded sleeve 44 is rotatably connected to the inner wall of the sliding groove 43. One end of the outer side of the threaded sleeve 44 is fixed to the knob 47. A threaded rod 45 is connected to the inner thread of the threaded sleeve 44. The end of the threaded rod 45 is fixed to the fixing block 42. A limiting plate 46 is fixed at the connection between the fixing block 42 and the threaded rod 45. The limiting plate 46 is a square structure and is slidably connected in the sliding groove 43.

[0021] In this embodiment, the mold shell 1 can be fixed in a specified position by first locking the mounting side plate 11. When it is necessary to process insulation strips of different shapes, only the corresponding replacement inner core 2 needs to be replaced. In this process, the overall weight of the replacement inner core 2 is lighter than the entire mold, which reduces the difficulty of operation. When replacing, the cooling water pipe connected to the water pipe connector 13 does not need to be removed, which improves work efficiency. When replacing the replacement inner core 2, it is only necessary to rotate the knob 47 to drive the threaded sleeve 44 to rotate. By limiting the position of the limiting plate 46, the threaded rod 45 and the fixing block 42 can be extended and retracted. At this time, the fixing block 42 extends from the fixing groove 41 and can contact the fixing of the replacement inner core 2, and then the replacement inner core 2 can be directly pulled out. Otherwise, the replacement inner core 2 can be directly fixed in the adapter hole 3. The operation is relatively simple. When inserting the replacement inner core 2, the positioning side plate 23 can be used to limit the position of the fixing groove 41 and the fixing block 42 to ensure that the positions of the fixing groove 41 and the fixing block 42 are aligned.

[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An extrusion die for producing heat insulation strips that is easy to replace, comprising a die shell (1) and a replaceable inner core (2), characterized in that: An adapting hole (3) is provided at the center of the mold shell (1), a mold hole (21) is provided at the center of the replacement inner core (2), the replacement inner core (2) is inserted into the adapting hole (3), a fixing component (4) is provided between the replacement inner core (2) and the side wall of the adapting hole (3), a cooling water trough (12) is provided inside the mold shell (1) and outside the adapting hole (3), and a water pipe connector (13) is fixed on the outer surface of the mold shell (1) and at a position corresponding to the cooling water trough (12).

2. The extrusion die for producing heat insulation strips that is easy to replace according to claim 1, characterized in that: The fixing assembly (4) comprises a fixing groove (41), a fixing block (42) and a knob (47); the fixing groove (41) is provided on both sides of the replacement inner core (2) and is symmetrically distributed; the fixing block (42) is installed on the side wall of the adapter hole (3) and its position corresponds to the fixing groove (41); the knob (47) is rotatably connected to the outer side wall of the mold shell (1) and its position is aligned with the fixing block (42).

3. The extrusion die for producing heat insulation strips that is easy to replace according to claim 2, characterized in that: A sliding groove (43) is provided on the side wall of the adapting hole (3) at a position corresponding to the fixing block (42); a threaded sleeve (44) is rotatably connected to the inner wall of the sliding groove (43); an outer end of the threaded sleeve (44) is fixed to a knob (47); an inner thread of the threaded sleeve (44) is connected to a threaded rod (45); an end of the threaded rod (45) is fixed to the fixing block (42).

4. The extrusion die for producing heat insulation strips that is easy to replace according to claim 3 is characterized in that: A limiting plate (46) is fixed at the connection between the fixing block (42) and the threaded rod (45); the limiting plate (46) is a square structure and is slidably connected in the sliding groove (43).

5. The extrusion die for producing heat insulation strips that is easy to replace according to claim 1, characterized in that: The replaceable inner core (2) is provided with heat-conducting top blocks (22) on both upper and lower sides, and a telescopic groove (24) is provided on the outer surface of the replaceable inner core (2) at a position corresponding to the heat-conducting top block (22), and a telescopic spring (25) is fixed between the inner side wall of the telescopic groove (24) and the heat-conducting top block (22).

6. The extrusion die for producing heat insulation strips that is easy to replace according to claim 1, characterized in that: Positioning side plates (23) are fixed on both sides of the front end of the replacement inner core (2), and mounting side plates (11) are fixed on the four corners of the bottom of the mold shell (1).

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