A reamer device for a cast tube box

Abstract

A kind of drawing device for enameled tube box, including base, support mobile seat, support component, support frame, heating component, heating mobile seat, drawing component;The support mobile seat, heating mobile seat, support frame, drawing component are set on the base, the support component is slidably arranged on the support mobile seat;The heating component is slidably arranged on the heating mobile seat. Compared with the original stamping pipe mouth, using special device to draw hole solves the quality defect that the weld of pipe mouth arc place is easy to explode porcelain;It can realize drawing of multiple specifications, increase the applicability of device, and need not frequently replace disassembly, improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of enamel tube box heat exchanger processing technology, specifically to a hole-drawing device for enamel tube boxes. Background Technology

[0002] Enameled pipe boxes are made by spraying a high-silica glass enamel onto the inner surface of a steel pipe box, then firing it at a high temperature of 800-920℃ to firmly adhere it to the metal surface, thus becoming a composite material product. Therefore, it possesses the dual advantages of the stability of glass and the strength of metal, making it an excellent corrosion-resistant device. It is widely used in chemical, petroleum, pharmaceutical, pesticide, and food industries.

[0003] The enamel side of the enamel-lined pipe box equipment should not have discontinuous structures. All corners should have smooth transitions with a radius greater than 6mm, and all connecting parts should be aligned with the enamel-lined sides. The enamel-lined pipe box sections require top-hole forming before welding the pipe ends. Current production processes involve stamping the pipe ends into a roughly arc-shaped form, roughly matching the arc of the pipe section, and then welding. This process easily leads to excessive stress on the enamel-lined pipe box, which can cause enamel cracking in practical applications, resulting in corrosion and leakage, and halting normal production.

[0004] To address the above problems, a hole-pulling device for enamel-lined pipe boxes is designed. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a hole-pulling device for enamel-lined pipe boxes, comprising a base, a supporting movable seat, a supporting component, a supporting frame, a heating component, a heating movable seat, and a hole-pulling component; the supporting movable seat, the heating movable seat, the supporting frame, and the hole-pulling component are disposed on the base, the supporting component is slidably disposed on the supporting movable seat, and the heating component is slidably disposed on the heating movable seat.

[0006] Preferably, the support component is disposed on one side of the base, the support component is used to support and fix the pipe box, and the support component slides in and out of the pipe box.

[0007] Preferably, the support assembly includes a column, a support plate, a first rod group, a second rod group, a lead screw, and a lead screw nut;

[0008] The column is mounted on the support movable seat, and the support plate is slidably mounted on the column for sliding up and down along the column.

[0009] Preferably, the first rod group includes a plurality of first rods, the second rod group includes a plurality of second rods, and the plurality of first rods are slidably disposed on the support plate via a sliding groove.

[0010] Preferably, one end of one of the plurality of second rods is disposed on the first rod, and the other end is disposed on the lead screw nut, the lead screw nut is screwed onto the lead screw, and the lead screw is disposed at the axis position of the support plate.

[0011] Preferably, the support frame is disposed between the support assembly and the hole assembly to support the tube box.

[0012] Preferably, the heating component is slidably disposed on the heating movable seat, and the heating movable seat is disposed between the support frames.

[0013] Preferably, the hole-pulling assembly includes a fixed post, a cantilever, and a hole-pulling structure. The fixed post is fixedly mounted on the base, and the cantilever is slidably mounted on the fixed post.

[0014] Preferably, the hole structure is rotatably mounted on the cantilever.

[0015] Preferably, the hole-drawing structure includes a hole-expanding cone, a hole-drawing block, and a housing; the hole-expanding cone is telescopically connected to the housing, the hole-drawing block is provided with a slider, the housing is provided with a sliding groove corresponding to the slider, and the hole-drawing block is provided with an elastic element in the circumferential direction.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0017] 1. This solution uses a special machine for hole drawing, which, compared to the original stamping of the pipe opening, solves the quality defect of easy ceramic cracking at the weld seam of the pipe opening arc.

[0018] 2. This solution optimizes the fixing structure of the pipe box, and the support components can be used for various types and specifications of pipe boxes.

[0019] 3. This solution uses heating only at the hole-drawing location, which improves heating efficiency while reducing the difficulty of hole drawing and facilitates hole forming.

[0020] 4. This solution is equipped with a hole-pulling component, which can realize hole pulling of various specifications, improves the applicability of the device, and eliminates the need for frequent replacement and disassembly, thereby improving processing efficiency. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present utility model with attached pipe box;

[0024] Figure 2 This is a schematic diagram of the hole-pulling assembly structure of this utility model;

[0025] Figure 3 This is a front view of the hole-pulling assembly of this utility model;

[0026] Figure 4 for Figure 3 Sectional view along line AA;

[0027] Figure 5 for Figure 3 Partial sectional view from the center BB direction;

[0028] Figure 6 This is a schematic diagram of the support component structure of this utility model;

[0029] Figure 7 This is a cross-sectional view of the movable support seat of this utility model.

[0030] The components are: 1. base; 2. movable support seat; 3. support assembly; 4. support frame; 5. heating assembly; 6. perforated assembly; 7. movable heating seat;

[0031] 21, slider guide rail assembly; 22, sliding screw nut; 23, sliding screw; 24, slot; 25, base; 26, upper sealing plate;

[0032] 31, Column; 32, Support plate; 33, First rod; 34, Second rod; 35, Lead screw nut; 36, Lead screw; 37, T-slot;

[0033] 61. Fixed column; 62. Cantilever; 63. Pull-hole structure; 64. Rotating structure;

[0034] 631, Draw block; 632, Slider; 633, Reamer cone; 634, Housing; 635, Elastic element. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" and "connected" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0037] The directional terms mentioned in the embodiments of this utility model, such as "inner", "outer", "upper", "lower", "left", "right", "top", and "bottom", are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Example

[0038] like Figures 1-6 As shown, a hole-pulling device for an enamel-lined pipe box includes a base 1, a supporting movable seat 2, a supporting assembly 3, a supporting frame 4, a heating assembly 5, a heating movable seat 7, and a hole-pulling assembly 6. The supporting movable seat 2, the heating movable seat 7, the supporting frame 4, and the hole-pulling assembly 6 are disposed on the base 1. The supporting assembly 3 is slidably disposed on the supporting movable seat 2. The heating assembly 5 is slidably disposed on the heating movable seat 7. The supporting assembly 3 is disposed on one side of the base 1 and is used to support and fix the pipe box. The supporting assembly 3 slides in and out of the pipe box.

[0039] The pipe box is placed on the support frame 4, and the support assembly 3 slides in and out of the pipe box via the support movable seat 2, thus adapting to different pipe box lengths. Figure 5 As shown, the support movable seat 2 consists of a base 25, a slider guide rail assembly 21, a sliding screw nut 22, a sliding screw 23, and an upper sealing plate 26. The two slider guide rail assemblies 21 are arranged parallel to each other on both sides of the base 25, extending in the same direction as the movement of the support assembly 3. The sliding screw nut 22 is sleeved on the sliding screw 23. When the sliding screw 23 rotates, the sliding screw nut 22 moves along the extension direction of the sliding screw 23, driving the support assembly 3 mounted on the sliding screw nut 22 to move, thus enabling the entry and exit of the pipe box. The support movable seat 2 is provided with an upper sealing plate 26, which has a slot 24 to provide space for the movement of the support assembly 3. Alternatively, a linear motor drive or a gear and rack transmission can be selected, which will not be elaborated further here.

[0040] like Figure 6As shown, the support assembly 3 includes a column 31, a support plate 32, a first rod group, a second rod group, a lead screw 36, and a lead screw nut 35. The column 31 is mounted on the support movable seat 2, and the support plate 32 is slidably mounted on the column 31 for sliding up and down along the column 31. The first rod group includes multiple first rods 33, and the second rod group includes multiple second rods 34. The multiple first rods 33 are slidably mounted on the support plate 32 through T-slots 37. One end of each of the multiple second rods 34 is mounted on a first rod 33, and the other end is mounted on the lead screw nut 35. The lead screw nut 35 is screwed onto the lead screw 36, which is positioned along the axis of the support plate 32. Preferably, four first rods 33 are evenly arranged around the support plate 32. Each first rod 33 has a protrusion at its lower end that mates with a T-slot 37, ensuring that it remains stable within the T-slot 37 without detaching from the support plate 32. Two second rods 34 are hinged to the first rods 33 and the lead screw nut 35, respectively. The four second rods 34, both inner and outer, are evenly hinged to the same lead screw nut 35. When the lead screw nut 35 moves along the lead screw 36, the second rods 34 drive the first rods 33 to slide along the T-slot 37, achieving a change in the diameter of the first rod group. An outer second rod group, together with the inner second rod group, forms a parallelogram mechanism, ensuring that the first rod group always extends axially along the lead screw 36. The power source for the rotation of the lead screw 36 can be a motor or manual drive.

[0041] The support frame 4 is positioned between the support assembly 3 and the hole assembly 6 to support the pipe box. The support frame 4 may be equipped with rollers to accommodate pipe boxes of different sizes. The support frame 4 is detachably connected to the base 1 and fixed by bolts.

[0042] The heating component 5 is slidably mounted on the heating movable seat 7, which is positioned between the support frames 4. The structure of the heating movable seat 7 is identical to that of the support movable seat 2, enabling heating of different positions of the heating component 5. The heating component 5 is positioned at the pipe box pull hole, heating only that area. The heating method can be selected as electromagnetic heating, radiation heating, or resistance heating, as long as it can heat the pull hole, reducing resistance during the pull hole process and preventing damage to the pull hole, thus forming a stable arc shape for the pull hole.

[0043] like Figure 2-5 As shown, the hole-pulling assembly 6 includes a fixed post 61, a cantilever 62, and a hole-pulling structure 63. The fixed post 61 is fixedly mounted on the base 1, and the cantilever 62 is slidably mounted on the fixed post 61. The specific implementation structure can be a conventional screw drive.

[0044] The hole-drawing structure 63 includes a hole-expanding cone 633, four hole-drawing blocks 631, and a housing 634. The hole-expanding cone 633 is telescopically connected to the housing 634. The hole-drawing blocks 631 are provided with sliders 632. The sliders 632 have an inverted T-shaped structure, which allows the housing 634 to support the hole-drawing blocks 631. The sliders 632 are set in directions C and D, and the housing 634 is provided with sliding grooves corresponding to the sliders 632. The hole-drawing blocks 631 are provided with elastic elements 635 in the circumferential direction. The elastic elements 635 can be spring coils.

[0045] The hole-drawing structure 63 is rotatably mounted on the cantilever 62 via the rotating structure 64. The rotating structure 64 can be a rotary motor. By rotating, it can compensate for the gap in the hole-drawing block 631 of the hole-drawing structure 63, which affects the hole-drawing quality. By setting the rotation time and the descent speed of the hole-drawing structure 63 along the fixed column 61, it can reduce the uneven hole-drawing caused by the gap.

[0046] The elastic element 635 keeps the four hole-drawing blocks 631 tightly fitted, reducing the diameter of the hole-drawing structure 63 and facilitating its entry into the initial hole. The expanding cone 633 moves up and down, driven by a screw mechanism or hydraulic cylinder. The lower end of the expanding cone 633 matches the space enclosed by the upper ends of the four extrusion hole-drawing blocks 631. When the expanding cone 633 descends, it compresses the space enclosed by the upper ends of the hole-drawing blocks 631, causing the hole-drawing blocks 631 to overcome the elastic force of the elastic element 635 and move through the sliding groove, thereby expanding their diameter. After hole drawing is complete, the expanding cone 633 rises, and the elastic element 635 compresses the hole-drawing blocks 631 to fit together.

[0047] The above are merely specific embodiments of this disclosure, enabling those skilled in the art to understand or implement this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to these embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hole-pulling device for enamel-lined pipe boxes, characterized in that, It includes a base, a supporting movable seat, a supporting component, a supporting frame, a heating component, a heating movable seat, and a hole assembly; the supporting movable seat, the heating movable seat, the supporting frame, and the hole assembly are disposed on the base, the supporting component is slidably disposed on the supporting movable seat, and the heating component is slidably disposed on the heating movable seat.

2. The hole-pulling device for enamel-lined pipe boxes as described in claim 1, characterized in that, The support component is disposed on one side of the base, and the support component is used to support and fix the pipe box. The support component slides in and out of the pipe box.

3. The hole-pulling device for enamel-lined pipe boxes as described in claim 2, characterized in that, The support assembly includes a column, a support plate, a first rod group, a second rod group, a lead screw, and a lead screw nut; The column is mounted on the support movable seat, and the support plate is slidably mounted on the column for sliding up and down along the column.

4. The hole-pulling device for enamel-lined pipe boxes as described in claim 3, characterized in that, The first rod group includes multiple first rods, and the second rod group includes multiple second rods. The multiple first rods are slidably mounted on the support plate via grooves.

5. A hole-pulling device for an enamel-lined pipe box as described in claim 4, characterized in that, One end of each of the second rods is disposed on the first rod, and the other end is disposed on the lead screw nut. The lead screw nut is screwed onto the lead screw, and the lead screw is disposed at the axis position of the support plate.

6. A hole-pulling device for an enamel-lined pipe box as described in claim 2, characterized in that, The support frame is disposed between the support assembly and the hole assembly to support the pipe box.

7. A hole-pulling device for an enamel-lined pipe box as described in claim 6, characterized in that, The heating component is slidably disposed on the heating movable seat, which is disposed between the support frames.

8. A hole-pulling device for an enamel-lined pipe box as described in claim 1, characterized in that, The hole-pulling assembly includes a fixed post, a cantilever, and a hole-pulling structure. The fixed post is fixedly mounted on the base, and the cantilever is slidably mounted on the fixed post.

9. A hole-pulling device for an enamel-lined pipe box as described in claim 8, characterized in that, The hole-drawing structure is rotatably mounted on the cantilever.

10. A hole-pulling device for an enamel-lined pipe box as described in claim 9, characterized in that, The hole-drawing structure includes a hole-expanding cone, a hole-drawing block, and a housing; the hole-expanding cone is telescopically connected to the housing, the hole-drawing block is provided with a slider, the housing is provided with a sliding groove corresponding to the slider, and the hole-drawing block is provided with an elastic element in the circumferential direction.

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