Mold assembly of composite heat insulation strip

Abstract

The utility model relates to a mold assembly of a composite heat insulation strip, which comprises a lower mold assembly, a lower mold assembly, a first driving unit, a second driving unit and a third driving unit, the lower mold assembly comprises a mold groove, an end cover and a first driving unit, and the end cover comprises an end plate and a positioning piece which is used for being inserted into the inner side of a pipe to support the pipe; and the upper die assembly comprises a die cover and a second driving unit, a communicating hole is formed in the die cover, the die cover is used for being enclosed with the end die and the die groove to form a die cavity, and the communicating hole communicates with the die cavity. According to the mold assembly of the composite heat insulation strip, the positioning piece is driven by the first driving unit to move and be inserted into a pipe in the mold groove, the pipe is supported, the mold groove, the end plate and the mold cover are matched for mold closing to form a mold cavity, polyurethane foam is injected for curing forming, the composite heat insulation strip is formed, a worker does not need to sleeve the pipe with a supporting frame, and the positioning piece can be repeatedly used; and the production cost is reduced while the workload of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation strip production, in particular to a mold component of a composite heat insulation strip. Background Art

[0002] Thermal insulation strips are used to seal gaps between doors and windows, isolating the indoor and outdoor temperatures and maintaining a stable indoor temperature. Polyurethane is commonly used in thermal insulation strips for door and window assemblies because of its excellent thermal insulation properties, durability, and weather resistance, as well as its environmentally friendly and non-hazardous properties.

[0003] In order to enhance the overall structural strength of the heat insulation strip, in the prior art, a metal pipe is usually inserted into the foaming cavity so that after the polyurethane foam is solidified, the polyurethane strip 81 is connected to the pipe 82 to form a Figure 1 The overall strength of the composite thermal insulation strip 8 shown is increased, and the amount of polyurethane used is reduced, thereby reducing costs.

[0004] In order to form Figure 1 The polyurethane strip 81 shown is usually provided with a plurality of support frames 83 distributed along the length direction of the tube 82 before the tube 82 is placed in the foaming cavity. The support frame 83 includes a frame body whose circumferential inner wall is sealed with the circumferential outer edge of the tube 82 and a plurality of support legs arranged outside the frame. The support legs are in contact with the cavity wall of the polyurethane foaming cavity, so that when the tube 82 is placed in the foaming cavity, the tube 82 is positioned and supported by the support frame 83, and then the polyurethane is injected for foaming and curing.

[0005] However, when the composite thermal insulation strips 8 are manufactured using the above method, at least two support frames 83 need to be inserted each time the composite thermal insulation strips 8 are manufactured. The support frames 83 are disposable and cannot be reused. Therefore, the production of batch composite thermal insulation strips 8 will inevitably lead to increased production costs. In addition, since workers are required to install support frames 83 on the outer surface of the pipe 82 before manufacturing, the workload of the workers is increased and the production efficiency of the composite thermal insulation strips 8 is reduced.

[0006] Therefore, it is necessary to improve the mold of the composite thermal insulation strip in the prior art. Utility Model Content

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the technical problems of high production cost, low production efficiency and increased burden on workers in the prior art.

[0008] In order to solve the above technical problems, the utility model provides a mold assembly for a composite thermal insulation strip, comprising:

[0009] a lower mold assembly, the lower mold assembly comprising a mold groove extending in a horizontal direction with a notch facing upward, end caps provided at both ends of the mold groove, and a first driving unit for driving the end caps to move between a first mold-parting position and a first mold-closing position; the end caps comprising an end plate and a positioning member fixed to a surface of the end plate adjacent to the mold groove, the positioning member being used to be inserted into the inner side of a pipe to support an end portion of the pipe; in the first mold-parting position, the end cap is separated from the mold groove; in the second mold-closing position, the end plate is in sealing contact with an end surface of the mold groove and the positioning member is located within the mold groove;

[0010] An upper mold assembly includes a mold cover and a second driving unit that drives the mold cover to move between a second mold-parting position and a second mold-closing position. A connecting hole is provided on the mold cover. A gap is provided between the mold cover at the second mold-parting position and the mold groove for allowing pipes to be placed in the mold groove and products to be taken out of the mold groove. The mold cover at the second mold-closing position, the end mold at the first mold-closing position, and the mold groove enclose a mold cavity, and the connecting hole is connected to the mold cavity.

[0011] As a further improvement of the present invention, in order to facilitate the rapid movement of the end cover between the first mold closing position and the first mold parting position, the first driving unit drives the end cover to move along a length direction parallel to the mold groove.

[0012] As a further improvement of the present invention, in order to facilitate the rapid insertion of the positioning piece into the interior of the pipe, the positioning piece includes an adapting section and a guide section distributed in sequence along the length direction of the mold groove, the adapting section is arranged between the guide section and the end plate, the two ends of the guide section are respectively an adapting end and an insertion end, the adapting end is connected to the adapting end and has the same shape and size, the size of the insertion end is smaller than the size of the adapting end, the insertion end is gradually transitioned to the adapting end, and the adapting section is adapted to the inner cavity of the pipe.

[0013] As a further improvement of the present invention, in order to facilitate demoulding, it also includes a lifting component, which is used to push the cured polyurethane out of the mold groove.

[0014] As a further improvement of the present invention, in order to achieve rapid demolding, the lifting assembly includes a bottom template and a third driving unit. The two sides of the bottom template are sealed and fit with the two inner walls of the mold groove. The two ends of the bottom template are flush with the two ends of the mold groove. The bottom template is arranged in the mold groove, and the third driving unit drives the bottom template to move in the vertical direction.

[0015] As a further improvement of the present invention, in order to further facilitate demoulding and placement of pipes, the movable path of the bottom template includes an access station. Under the access station, the top surface of the bottom template and the notch of the mold groove are located in the same plane.

[0016] As a further improvement of the present invention, in order to facilitate the adjustment of the position of the pipe on the bottom template, it also includes a calibration component, which is used to calibrate the direction and position of the pipe placed on the bottom template under the storage and retrieval station, so that the length direction of the pipe is consistent with the length direction of the mold groove and after the pipe is lowered with the bottom template, the moving path of the inner cavity of the pipe passes through the line between the positioning pieces on the end covers at both ends of the mold groove.

[0017] As a further improvement of the present invention, in order to adjust the position and direction of the pipe on the bottom template, the calibration assembly includes two calibration plates that are arranged opposite to each other and extend directly above the mold groove in a direction parallel to the length of the mold groove, and a fourth drive unit that drives the two calibration plates to move in a direction parallel to the width of the mold groove and in opposite directions.

[0018] As a further improvement of the present invention, in order to facilitate the insertion of the positioning piece into the end of the pipe to support the pipe, the movable path of the bottom template also includes a positioning station. Under the positioning station, the two ends of the calibrated pipe groove on the bottom template are facing the positioning pieces at both ends of the mold groove.

[0019] As a further improvement of the present invention, in order to facilitate the placement of pipes and the removal of products, the length of the mold cover is greater than the length of the mold groove, the mold cover is directly above the mold groove, and the second driving unit includes a second lifting unit arranged on the mold cover part.

[0020] Compared with the prior art, the mold assembly of the composite thermal insulation strip of the present invention drives the positioning part to move and insert into the interior of the pipe in the mold groove through the first driving unit to support the pipe, and cooperates with the mold groove, end plate and mold cover to form a mold cavity, injects polyurethane foam and solidifies to form a composite thermal insulation strip. There is no need for workers to install a support frame outside the pipe, and the positioning part is reusable, which reduces the workload of workers and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 It is a structural diagram of a composite thermal insulation strip in the prior art;

[0023] Figure 2 It is a schematic diagram of the assembly of pipes and support frames;

[0024] Figure 3 It is a structural diagram of the utility model;

[0025] Figure 4 yes Figure 3 Explosion diagram of

[0026] Figure 5 yes Figure 3 Schematic diagram of part of the structure;

[0027] Figure 6 yes Figure 5 Explosion diagram of

[0028] Figure 7 yes Figure 3 Schematic diagram of the cross-section structure;

[0029] Figure 8 yes Figure 7 A magnified view of part A;

[0030] Figure 9 This is a schematic structural diagram of another usage state of the utility model;

[0031] Figure 10 yes Figure 9 Schematic diagram of the cross-section structure after omitting the mold cover;

[0032] Explanation of the reference numerals in the specification: 1. mold groove; 11. mold frame; 12. side panel; 2. end cover; 21. end plate; 22. positioning member; 221. adapter section; 222. guide section; 3. first drive unit; 31. first drive cylinder; 32. first guide rod; 4. mold cover; 41. connecting hole; 5. second drive unit; 51. fixing frame; 52. second drive cylinder; 53. second guide rod; 6. lifting assembly; 61. bottom template; 62. third drive unit; 7. calibration assembly; 71. calibration plate; 72. fourth drive unit; 73. fourth guide rod; 8. composite thermal insulation strip; 81. polyurethane strip; 82. pipe; 83. support frame. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0034] It should be noted that when an element is referred to as being "disposed on" or "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "fixed on" another element, or "fixedly connected" to another element, they may be fixed in a detachable manner or in a non-detachable manner. When an element is considered to be "connected" or "rotatably connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used are for illustrative purposes only and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to constrain this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] The terms "first", "second", "third" and the like in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0037] like Figure 3-10 As shown, the mold assembly of the composite thermal insulation strip of the utility model includes:

[0038] The lower mold assembly includes a mold cavity 1 extending horizontally with a notch facing upward, end caps 2 provided at both ends of the mold cavity 1, and a first driving unit 3 for driving the end caps 2 to move between a first mold-parting position and a first mold-closing position. The end caps 2 include an end plate 21 and a positioning member 22 fixed to the surface adjacent to the end plate 21 and the mold cavity 1. The positioning member 22 is used to be inserted into the inner side of the tube 82 to support the end of the tube 82. In the first mold-parting position, the end cap 2 is separated from the mold cavity 1. In the second mold-closing position, the end plate 21 is sealed and fitted with the end surface of the mold cavity 1, and the positioning member 22 is located within the mold cavity 1.

[0039] The upper mold assembly includes a mold cover 4 and a second driving unit 5 that drives the mold cover 4 to move between the second mold parting position and the second mold closing position. A connecting hole 41 is provided on the mold cover 4. A gap is provided between the mold cover 4 and the mold groove 1 at the second mold parting position for the pipe 82 to be placed in the mold groove 1 and the product to be taken out of the mold groove 1. The mold cover 4 at the second mold closing position and the end mold at the first mold closing position and the mold groove 1 enclose a mold cavity and the connecting hole 41 is connected to the mold cavity.

[0040] When the mold assembly is in use, the first driving unit 3 moves the end cover 2 to the first mold separation position, so that the end cover 2 is separated from the mold cavity 1, and the second driving unit 5 moves the mold cover 4 to the second mold separation position, so as to facilitate the placement of the pipe 82 into the mold cavity 1, and then the first driving unit 3 moves the end cover 2 to the first mold closing position. At this position, the two ends of the mold cavity 1 are sealed and fitted with the end plates 21 of the two end covers 2, and the positioning piece 22 on the end plate 21 is inserted into the inner side of the end of the pipe 82, and the entire pipe is supported by the end of the pipe 82. The tube 82 is supported by the second driving unit 5, and then the end cover 2 is driven by the second driving unit 5 to move to the second mold closing position. In this state, the mold groove 1, the mold cover 4 and the two end covers 2 are enclosed to form a mold cavity. The connecting hole 41 on the end cover 2 is convenient for injecting polyurethane and foaming agent into the mold cavity, which facilitates the polyurethane foaming and curing molding. In the molding process, the generated gas is discharged to the outside through the connecting hole 41, and the two ends of the tube 82 are supported by the positioning piece 22. Finally, the polyurethane foam is cured and formed into a polyurethane strip 81 that wraps the outer periphery of the tube 82 and is integrally connected to the tube 82, that is, it forms Figure 1 The composite thermal insulation strip 8. Then, the first driving unit 3 and the second driving unit 5 drive the end cover 2 and the mold cover 4 to move to the first mold separation position and the second mold separation position respectively, so as to facilitate the removal of the composite thermal insulation strip 8.

[0041] Compared with the prior art, the present invention does not need to prepare a support frame 83 when producing the composite thermal insulation strip 8, nor does it need to put the support frame 83 on the outside of the tube 82 to support the tube 82. The positioning pieces 22 at both ends of the mold groove 1 are respectively inserted into the two ends of the tube 82 for support. After the composite thermal insulation strip 8 is formed, the positioning piece 22 is moved to the first mold separation position by the first drive unit 3, and is separated from the mold groove 1 and the tube 82. Therefore, the positioning piece 22 in the present invention is reusable, avoiding the cost increase caused by the one-time use of the support frame 83. At the same time, there is no need to sequentially set multiple support frames 83 along the length direction of the tube 82, which reduces the workload of workers. It is only necessary to insert the positioning piece 22 at both ends of the tube 82 to achieve rapid support for the tube 82, which is conducive to improving production efficiency.

[0042] A further improvement is that the first drive unit 3 drives the end cover 2 to move along the length direction parallel to the mold groove 1; the positioning member 22 includes an adapting section 221 and a guide section 222 distributed in sequence along the length direction of the mold groove 1, and the adapting section 221 is arranged between the guide section 222 and the end plate 21, and the two ends of the guide section 222 are respectively an adapting end and an insertion end, the adapting ends are connected to the adapting ends and have the same shape and size, the size of the insertion end is smaller than the size of the adapting end, and the insertion end is gradually transitioned to the adapting end, and the adapting section 221 is adapted to the inner cavity of the pipe 82.

[0043] Specifically, a mold frame 11 with the same length as the mold groove 1 is fixedly provided below the mold groove 1, and the first driving unit 3 includes a first driving cylinder 31. The cylinder barrel of the first driving cylinder 31 is fixed above the mold frame 11, and the piston rod faces the mold groove 1 and is fixedly connected to the end plate 21. The positioning member 22 is fixed on the side of the end plate 21 facing away from the first driving cylinder 31, and the adapter section 221 is located between the end plate 21 and the guide section 222; the first guide rod 32 with the same length as the mold groove 1 is slidingly transmitted on both sides of the mold frame 11, and the two ends of the first guide rod 32 are fixed to the top of the mold frame 11 through support plates.

[0044] After adopting the above structure, the first driving cylinder 31 can drive the end cover 2 to move quickly and stably between the first mold closing position and the first mold separation position along the length direction parallel to the mold groove 1 under the guidance of the first guide rod 32, thereby improving production efficiency; and the positioning member 22 is composed of an adapter section 221 and a guide section 222. The cross-sectional dimension of the guide section 222 is smaller than the cross-sectional dimension of the adapter section 221, and the gradual transition from the insertion end to the adapter end is set to facilitate the rapid insertion of the guide section 222 into the pipe. 82, and the adapting section 221 is adapted to the inner cavity of the tube 82, so that after the guide section 222 is inserted into the end of the tube 82, when the first driving cylinder 31 drives the end cover 2 to move toward the mold groove 1, the adapting section 221 is sealed and fitted with the circumferential inner wall of the tube 82, thereby achieving stable support for the tube 82 and ensuring that the position of the tube 82 is stable and will not move when the polyurethane is poured into the mold cavity, thereby fixing the relative position of the tube 82 and the polyurethane strip 81, thereby improving the product quality of the composite insulation strip 8.

[0045] A further improvement is that it also includes a lifting component 6, which is used to push the cured polyurethane out of the mold cavity 1; the lifting component 6 includes a bottom template 61 and a third drive unit 62, the two sides of the bottom template 61 are sealed and fit with the two inner walls of the mold cavity 1, the two ends of the bottom template 61 are flush with the two ends of the mold cavity 1, the bottom template 61 is arranged in the mold cavity 1, and the third drive unit 62 drives the bottom template 61 to move in the vertical direction.

[0046] Specifically, the third driving unit 62 includes a plurality of third driving cylinders evenly spaced along the length direction of the mold groove 1. The cylinder barrel of the third driving cylinder is vertically upwardly arranged and fixed to the inner side of the mold frame 11. The piston rod passes through the top side wall of the mold frame 11 and the bottom of the mold groove 1 in sequence, and is fixedly connected to the bottom template 61.

[0047] After adopting the above design, before the mold cavity is formed, the third driving cylinder drives the bottom template 61 to descend until it contacts the bottom of the mold groove 1. After the end cover 2 and the mold cover 4 are enclosed with the mold groove 1 to form a mold cavity, polyurethane is injected. The polyurethane foams and solidifies in the mold cavity to form a polyurethane strip 81 connected to the pipe 82. The first driving unit 3 and the second driving unit 5 respectively drive the end cover 2 and the mold cover 4 to move to the first parting position and the second parting position, and then the third driving cylinder drives the bottom template 61 to move upward, supporting the formed composite insulation strip 8 to facilitate the removal of the product.

[0048] A further improvement is that it also includes a calibration component 7, which is used to calibrate the direction and position of the tube 82 placed on the bottom template 61 under the storage and retrieval station, so that the length direction of the tube 82 is consistent with the length direction of the mold groove 1 and after the tube 82 descends with the bottom template 61, the movement path of the inner cavity of the tube 82 passes through the line between the positioning parts 22 on the end covers 2 at both ends of the mold groove 1; the calibration component 7 includes two calibration plates 71 that are arranged opposite each other and extend directly above the mold groove 1 in a direction parallel to the length of the mold groove 1, and a fourth drive unit 72 that drives the two calibration plates 71 to move in a direction parallel to the width of the mold groove 1 and in opposite directions; the movable path of the bottom template 61 also includes a positioning station, and under the positioning station, the two ends of the calibrated tube groove on the bottom template 61 face the positioning parts 22 at both ends of the mold groove 1; the movable path of the bottom template 61 includes the storage and retrieval station, and under the retrieval station, the top surface of the bottom template 61 and the notch of the mold groove 1 are located in the same plane.

[0049] Specifically, side plates 12 are fixed on both sides of the top surface of the mold frame 11. The side plates 12 are arranged on both sides of the mold groove 1 and extend in a length direction parallel to the mold groove 1. The calibration plate 71 corresponds to the side plate 12 one by one and is arranged between the side plate 12 and the notch of the mold groove 1. The fourth driving unit 72 is a fourth driving cylinder. Fourth guide rods 73 are provided on both sides of the fourth driving cylinder. The cylinder barrel of the fourth driving cylinder is fixed on the side plate 12. The piston rod and the fourth guide rod 73 are fixedly connected to the calibration plate 71 and are axially parallel to the width direction of the mold groove 1. The fourth guide rod 73 is slidably passed through the side plate 12.

[0050] After adopting the above structure, before placing the pipe 82, the bottom template 61 is adjusted to the access station through the third driving unit 62 so that its top surface is at the same horizontal plane as the notch of the die groove 1. After the pipe 82 is placed on the bottom template 61, the fourth driving cylinders on both sides are started at the same time, acting on the two calibration plates 71. Under the sliding cooperation of the fourth guide rod 73 and the side plate 12, the two calibration plates 71 are simultaneously moved close to each other along the groove width direction parallel to the die groove 1. Finally, the two calibration plates 71 are simultaneously attached to the two side walls of the pipe 82, as shown in FIG. Figure 9 and Figure 10As shown, in this state, the length direction of the tube 82 can be consistent with the length direction of the mold groove 1, and the two end covers 2 are in the first mold splitting position. The projection of the tube 82 on the horizontal plane is separated from the projection of the positioning parts 22 in the two end covers 2 on the horizontal plane, and the projection positions of the three are on the same straight line.

[0051] On the basis of the above, the fourth driving cylinder pulls the calibration plate 71 close to the side plate 12, so that it separates from the pipe 82 and moves to the lower side of the mold cover 4, and then the third driving cylinder drives the bottom template 61 down to the positioning position, so that the pipe 82 is lowered with the bottom template 61 to be located between the two end covers 2. At this time, the two ends of the pipe 82 are facing the two positioning members 22 respectively, and then, the first driving cylinder 31 drives the end cover 2 toward the pipe 82, so that the guide section 222 and the adapter section 221 of the positioning member 22 are inserted into the inner side of the end of the pipe 82 in sequence. Finally, the adapter section 221 is sealed and fits with the circumferential inner wall of the end of the pipe 82.

[0052] After the adapter section 221 is inserted into the pipe 82, the third driving cylinder drives the bottom template 61 down to fit with the bottom of the mold groove 1. At this time, the second driving unit 5 drives the mold cover 4 down to form a mold cavity together with the end cover 2 and the mold groove 1, which is convenient for injecting polyurethane foam molding, and finally connected with the pipe 82 to form a composite insulation strip 8.

[0053] After the composite thermal insulation strip 8 is formed, the end cover 2 and the mold cover 4 are moved to the first parting position and the second parting position respectively. After the bottom mold plate 61 is moved upward to the highest point by the third driving cylinder, it can support the product composite thermal insulation strip 8 and make it separate from the mold groove 1, further facilitating the removal of the product.

[0054] A further improvement is that the length of the mold cover 4 is greater than the length of the mold cavity 1 , the mold cover 4 is directly above the mold cavity 1 , and the second driving unit 5 includes a second lifting unit arranged at the end of the mold cover 4 .

[0055] Specifically, there are two second drive units 5, which are respectively arranged at both ends of the mold cover 4 and separated from the mold groove 1. In this way, there is enough space directly above the mold groove 1 to facilitate the placement of the pipe 82 and the removal of the product after the composite insulation strip 8 is formed.

[0056] The second drive unit 5 comprises a fixed frame 51, a second drive cylinder 52, and a second guide rod 53. The fixed frame 51 is inverted U-shaped, with both ends fixed above the mold frame 11. The cylinder barrel of the second drive cylinder 52 is vertically downwardly positioned and fixed above the fixed frame 51. The piston rod passes through the top of the fixed frame 51 and is fixedly connected to the mold cover 4. The second guide rod 53 is vertically fixed above the mold cover 4 and slides through the top of the fixed frame 51.

[0057] After the second driving cylinder 52 is started, it acts on the mold cover 4 through the piston rod. Under the sliding cooperation of the fixing frame 51 and the second guide rod 53, the end cover 2 moves stably in the vertical direction to achieve mold closing and opening.

[0058] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A mold assembly for a composite thermal insulation strip, characterized in that: include: A lower mold assembly, the lower mold assembly comprising a mold groove (1) extending in a horizontal direction and with a notch facing upward, end covers (2) provided at both ends of the mold groove (1), and a first driving unit (3) for driving the end cover (2) to move between a first mold separation position and a first mold closing position, the end cover (2) comprising an end plate (21) and a positioning member (22) fixed on a surface adjacent to the end plate (21) and the mold groove (1), the positioning member (22) being used to be inserted into the inner side of a pipe (82) to support an end portion of the pipe (82), in the first mold separation position, the end cover (2) is spaced apart from the mold groove (1), and in the second mold closing position, the end plate (21) is sealed and fitted with an end face of the mold groove (1) and the positioning member (22) is located in the mold groove (1); An upper mold assembly comprises a mold cover (4) and a second driving unit (5) for driving the mold cover (4) to move between a second mold splitting position and a second mold closing position; a connecting hole (41) is provided on the mold cover (4); a gap is provided between the mold cover (4) at the second mold splitting position and the mold groove (1) for allowing a pipe (82) to be placed into the mold groove (1) and for allowing a product to be taken out of the mold groove (1); the mold cover (4) at the second mold closing position, the end mold at the first mold closing position, and the mold groove (1) enclose a mold cavity, and the connecting hole (41) is connected to the mold cavity.

2. The mold assembly of the composite thermal insulation strip according to claim 1, characterized in that: The first driving unit (3) drives the end cover (2) to move along a length direction parallel to the die groove (1).

3. The mold assembly of the composite thermal insulation strip according to claim 2, characterized in that: The positioning member (22) comprises an adapting section (221) and a guiding section (222) sequentially distributed along the length direction of the die groove (1); the adapting section (221) is arranged between the guiding section (222) and the end plate (21); the two ends of the guiding section (222) are respectively an adapting end and an inserting end; the adapting end is connected to the adapting end and has the same shape and size; the size of the inserting end is smaller than the size of the adapting end; the inserting end is gradually transitioned to the adapting end; the adapting section (221) is adapted to the inner cavity of the pipe (82).

4. The mold assembly of the composite thermal insulation strip according to claim 1, characterized in that: It also includes a lifting component (6), which is used to push the solidified polyurethane out of the mold cavity (1).

5. The mold assembly of the composite thermal insulation strip according to claim 4, characterized in that: The lifting assembly (6) includes a bottom template (61) and a third driving unit (62), the two sides of the bottom template (61) are sealed and fitted with the two inner side walls of the mold groove (1), the two ends of the bottom template (61) are flush with the two ends of the mold groove (1), the bottom template (61) is arranged in the mold groove (1), and the third driving unit (62) drives the bottom template (61) to move in the vertical direction.

6. The mold assembly of the composite thermal insulation strip according to claim 5, characterized in that: The movable path of the bottom template (61) includes a storage and access station. At the storage and access station, the top surface of the bottom template (61) and the notch of the mold groove (1) are located in the same plane.

7. The mold assembly of the composite thermal insulation strip according to claim 6, characterized in that: The invention also includes a calibration component (7) for calibrating the direction and position of the pipe (82) placed on the bottom template (61) at the access station, so that the length direction of the pipe (82) is consistent with the length direction of the die groove (1) and after the pipe (82) is lowered along with the bottom template (61), the movement path of the inner cavity of the pipe (82) passes through the line between the positioning pieces (22) on the end covers (2) at both ends of the die groove (1).

8. The mold assembly of the composite thermal insulation strip according to claim 7, characterized in that: The calibration assembly (7) comprises two calibration plates (71) arranged opposite to each other and extending directly above the mold groove (1) in a direction parallel to the length of the mold groove (1), and a fourth drive unit (72) driving the two calibration plates (71) to move in a direction parallel to the width of the mold groove (1) and in opposite directions.

9. The mold assembly of the composite thermal insulation strip according to claim 8, characterized in that: The movable path of the bottom template (61) also includes a positioning station, at which the two ends of the calibrated tube groove on the bottom template (61) face the positioning pieces (22) at the two ends of the mold groove (1).

10. The mold assembly of the composite thermal insulation strip according to any one of claims 1 to 9, characterized in that: The length of the mold cover (4) is greater than the length of the mold cavity (1), the mold cover (4) is directly above the mold cavity (1), and the second driving unit (5) includes a second lifting unit arranged at the end of the mold cover (4).

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