Metal heat preservation outer protection elbow mold

Abstract

The utility model relates to the technical field of metal corrugated pipes, in particular to a metal heat preservation outer protection elbow mold. According to the scheme, the design that the semicircular shell and the semicircular male dies are combined is adopted, and the semicircular male dies are detachably arranged on the semicircular shell. Due to the design, the flexibility and the reuse rate of the die are greatly improved. According to different production requirements, the semicircular male dies of different numbers and types can be conveniently replaced, so that metal heat preservation outer protection elbows of different models are produced, and the production cost and the inventory cost are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal bellows, in particular to a metal thermal insulation outer protection elbow mould. Background Art

[0002] The metal insulation external protection elbow is a pipe with a regular wave-like appearance and is widely used in many fields.

[0003] The manufacturing of metal insulation external protection elbows is an important link. Traditional metal elbow manufacturing methods often involve complex process flows, including cutting, welding, grinding and other steps. These steps are not only time-consuming and labor-intensive, but also difficult to ensure the quality of the manufactured elbows, and cannot meet the modern industry's high-precision and high-efficiency production needs. In order to solve this problem, mold pressing technology has gradually been introduced into the manufacturing process of metal elbows.

[0004] However, the existing metal elbow molds need to design and manufacture different molds for different types of metal bellows elbows, which undoubtedly increases production costs and time costs. Utility Model Content

[0005] In order to solve the above problems, the utility model discloses a metal thermal insulation outer protection elbow mold.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions: a metal thermal insulation external protection elbow mold, including a male mold and a female mold, a semicircular shell and a plurality of semicircular punches, the semicircular punches are detachably arranged on the semicircular shell, and grooves are formed between adjacent semicircular punches; the semicircular shell and the semicircular punches together form a male mold, and a recessed space consistent with the overall shape of the male mold is formed in the female mold.

[0007] A slot is provided on the semicircular shell along its length direction, and a connecting block is provided on the semicircular punch on one side close to the semicircular shell. The connecting block is inserted into the slot, and a notch is provided on one side of the connecting block. A limiting rod is detachably provided on the inner side of the semicircular shell, and the limiting rod can be detachably inserted into the notch to fix the semicircular punch. Limiting rings are respectively provided on the limiting rod on both sides corresponding to the semicircular punch to limit the semicircular punch in the axial direction.

[0008] The inner side of the semicircular shell is provided with mounting blocks corresponding to the two ends of the limit rod, and a spring is provided in the mounting block. The inner side of the mounting block is provided with an opening allowing the limit rod to be inserted, and the spring is provided on the outer side of the mounting block. One end of the spring is connected to the mounting block, and the other end is used for contacting and cooperating with the limit rod. When the limit rod is inserted into the notch, the spring acts on the limit rod, so that the limit rod is in close contact with the notch.

[0009] One end of the spring that is in contact with the limiting rod is connected with a pressing plate.

[0010] The solution of the embodiment of the present application adopts a combined design of a semicircular shell and multiple semicircular convex molds, and the semicircular convex molds are detachably arranged on the semicircular shell. This design greatly improves the flexibility and reuse rate of the mold. According to different production needs, different numbers and types of semicircular convex molds can be easily replaced to produce different models of metal insulation external protection elbows, effectively reducing production costs and inventory costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the metal elbow mold in the embodiment of the present application;

[0012] Figure 2 This is a schematic diagram of the back side of the male mold in the embodiment of the present application;

[0013] Figure 3 A three-dimensional diagram of the back side of the male mold in the embodiment of the present application;

[0014] Figure 4 for Figure 3 A partial enlarged schematic diagram in the middle. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0016] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be used as limitations on the present invention. As used in the specification and appended claims of the present invention, the singular expressions "a", "an", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context.

[0017] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0018] Example 1: Figure 1-4As shown, a metal insulation outer protection elbow mold is used to press metal bellows elbows. During the specific production, two half pieces of metal bellows are pressed out by the mold of this embodiment respectively, and then fixed by rivets or self-tapping screws; specifically, the mold includes a male mold 300 and a female mold 400, a semicircular shell 100 and a plurality of semicircular punches 200, the semicircular punches 200 are detachably arranged on the semicircular shell 100, and grooves are formed between adjacent semicircular punches 200; the semicircular shell 100 and the semicircular punch 200 jointly form a male mold 300, and a recessed space consistent with the overall shape of the male mold 300 is formed in the female mold 400.

[0019] In this embodiment, the male mold 300 is composed of a semicircular shell 100 and a plurality of semicircular punches 200 .

[0020] Grooves are designed between adjacent semicircular punches 200 to form corrugations of the bellows during the pressing process.

[0021] The female mold 400 is internally designed with a recessed space that matches the overall shape of the male mold 300. The shape and size of this recessed space accurately correspond to the male mold 300 to ensure that the pressed corrugated pipe elbow has an accurate shape and size.

[0022] The specific pressing process includes:

[0023] A suitable metal material is selected and placed in the recessed space of the female mold 400 .

[0024] Make sure that the semicircular punch 200 and the semicircular housing 100 are correctly installed and check their tightness and alignment.

[0025] Suppression phase:

[0026] The male mold 300 and the female mold 400 are aligned and closed.

[0027] Sufficient pressure is applied so that the metal material is pressed and formed between the male mold 300 and the female mold 400 .

[0028] The semicircular punches 200 on the male die 300 and the grooves therebetween will form corresponding corrugations and grooves on the metal material.

[0029] Demolding stage:

[0030] After ensuring that the metal material has been completely formed, the male mold 300 and the female mold 400 are separated.

[0031] Take out the pressed half piece of metal bellows.

[0032] Post-processing:

[0033] The mold is used to press out two identical halves of a metal bellows.

[0034] The two halves are butt-jointed according to the curvature of the elbow (fixed with rivets or self-tapping screws) to form a complete metal insulation outer protection corrugated pipe elbow.

[0035] By using mold pressing, a large number of metal bellows elbows can be produced quickly and accurately, thereby improving production efficiency.

[0036] Stable quality: The precise design of the mold ensures that the shape and size of each corrugated pipe elbow are highly consistent, improving product quality.

[0037] Example 2: Figure 2-4 As shown, the number of pipe sections of different types of metal bellows is inconsistent. In order to improve the reuse rate of the mold, the semicircular punch 200 is detachably installed on the semicircular shell 100. Different types of metal bellows can be pressed out by disassembling and installing different numbers of semicircular punches 200.

[0038] A slot 101 is provided on the semicircular shell 100 along its length direction, and a connecting block 201 is provided on the semicircular punch 200 on the side close to the semicircular shell 100. The connecting block 201 is inserted into the slot 101, and a notch 202 is provided on one side of the connecting block 201. A limiting rod 102 is detachably provided on the inner side of the semicircular shell 100, and the limiting rod 102 can be detachably inserted into the notch 202 to fix the semicircular punch 200. Limiting rings 103 are respectively provided on the limiting rod 102 on both sides corresponding to the semicircular punch 200 to limit the semicircular punch 200 in the axial direction.

[0039] The slot 101 is used to install the semicircular punch 200 so that it can be firmly fixed on the semicircular shell 100 .

[0040] Each semicircular convex mold 200 is provided with a connecting block 201 on one side close to the semicircular shell 100. The size of this connecting block 201 matches the slot 101 and can be tightly inserted into the slot.

[0041] A notch 202 is provided on one side of the connecting block 201. The notch 202 is used to cooperate with the limiting rod 102 to ensure that the semicircular punch 200 does not move or fall off during the working process of the mold.

[0042] The limiting rod 102 is detachably arranged on the inner side of the semicircular housing 100. It can be separately inserted into the notch 202 of the connecting block 201, thereby fixing the semicircular convex mold 200.

[0043] In order to further limit the movement of the semicircular punch 200 in the axial direction, limiting rings 103 are respectively provided on both sides of the limiting rod 102 corresponding to the semicircular punch 200 .

[0044] Workflow and principle:

[0045] Install the semicircular punch:

[0046] According to the model and number of pipe sections of the metal bellows to be produced, the corresponding number and type of semicircular punches 200 are selected.

[0047] The connecting block 201 of the semicircular punch 200 is inserted into the slot 101 of the semicircular shell 100 .

[0048] The limiting rod 102 is inserted into the notch 202 of the connecting block 201 to ensure that the semicircular punch 200 is firmly fixed on the semicircular shell 100 .

[0049] Mould use:

[0050] When the molds are closed and pressed, the semicircular punch 200 will form a corresponding corrugated shape on the metal material.

[0051] Since the semicircular punch 200 is detachable, different numbers and types of semicircular punches can be easily replaced to meet the production requirements of different types of metal bellows.

[0052] By removing and installing different numbers and types of semicircular punches 200, the mold can be adapted to the production of various types of metal bellows, greatly improving the reuse rate and production flexibility of the mold. Since there is no need to manufacture a separate set of molds for each type of metal bellows, the production cost and inventory cost can be significantly reduced.

[0053] The inner side of the semicircular shell 100 is provided with mounting blocks 104 corresponding to the two ends of the limiting rod 102, and a spring 105 is provided in the mounting block 104. The inner side of the mounting block 104 is provided with an opening 141 allowing the limiting rod 102 to be inserted. The spring 105 is arranged on the outer side of the mounting block 104, and one end of the spring 105 is connected to the mounting block 104, and the other end thereof is used for contacting and cooperating with the limiting rod 102. When the limiting rod 102 is inserted into the notch 202, the spring 105 acts on the limiting rod 102, so that the limiting rod 102 is in close contact with the notch 202.

[0054] One end of the spring 105 that is in contact with the limiting rod 102 is connected to a pressing plate 106 .

[0055] The mounting block 104 is fixed on the inner side of the semicircular housing 100 , and its position corresponds to the two ends of the limiting rod 102 .

[0056] Each mounting block 104 is designed with an opening 141 inside. The shape and size of the opening match the limiting rod 102, allowing the limiting rod to be smoothly inserted therein.

[0057] The spring 105 is installed on the outside of the mounting block 104 , and one end of the spring 105 is firmly connected to the mounting block 104 .

[0058] The other end of the spring 105 is designed to contact and cooperate with the limiting rod 102. When the limiting rod 102 is inserted into the notch 202, the spring 105 applies an inward pressing force to the limiting rod to ensure that it fits tightly in the notch, thereby enhancing the fixing effect.

[0059] In order to increase the contact area between the spring 105 and the limiting rod 102 and improve the uniformity of the pressing force, a pressing plate 106 is added to the end of the spring that contacts the limiting rod.

[0060] When the semicircular punch 200 is inserted into the slot 101 of the semicircular shell 100 through its connecting block 201, the limiting rod 102 is inserted into the notch 202 of the connecting block. At this time, the spring 105 installed on the mounting block 104 will apply a continuous pressing force to the limiting rod through the pressing plate 106, so that it fits tightly in the notch. This design not only improves the fixing stability of the semicircular punch, but also ensures that the semicircular punch will not loosen or fall off due to vibration or impact during the working process of the mold.

[0061] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A metal thermal insulation outer protection elbow mold, characterized by: The invention comprises a male mold (300) and a female mold (400), a semicircular shell (100) and a plurality of semicircular convex molds (200), wherein the semicircular convex molds (200) are detachably arranged on the semicircular shell (100), and grooves are formed between adjacent semicircular convex molds (200); the semicircular shell (100) and the semicircular convex molds (200) together form a male mold (300), and a concave space consistent with the overall shape of the male mold (300) is formed in the female mold (400).

2. A metal thermal insulation outer protection elbow mold as claimed in claim 1, characterized in that: The semicircular shell (100) is provided with a slot (101) along its length direction; the semicircular punch (200) is provided with a connecting block (201) on a side close to the semicircular shell (100); the connecting block (201) is inserted into the slot (101); and a notch (202) is provided on one side of the connecting block (201); a limiting rod (102) is detachably provided on the inner side of the semicircular shell (100); the limiting rod (102) is detachably inserted into the notch (202) to fix the semicircular punch (200); and limiting rings (103) are respectively provided on the limiting rod (102) on both sides corresponding to the semicircular punch (200) to limit the semicircular punch (200) in the axial direction.

3. A metal thermal insulation outer protection elbow mold as claimed in claim 2, characterized in that: The inner side of the semicircular shell (100) is provided with mounting blocks (104) corresponding to the two ends of the limiting rod (102), and the mounting block (104) is provided with a spring (105). The inner side of the mounting block (104) is provided with an opening (141) for allowing the limiting rod (102) to be inserted. The spring (105) is arranged on the outer side of the mounting block (104), one end of the spring (105) is connected to the mounting block (104), and the other end of the spring (105) is used for contacting and cooperating with the limiting rod (102). When the limiting rod (102) is inserted into the notch (202), the spring (105) acts on the limiting rod (102), so that the limiting rod (102) and the notch (202) are in close contact.

4. A metal thermal insulation outer protection elbow mold as claimed in claim 3, characterized in that: One end of the spring (105) that is in contact with the limiting rod (102) is connected to a pressing plate (106).

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