Raw material conveying support frame for heat exchange tube of air conditioner

Abstract

The utility model discloses an air conditioner heat exchange tube raw material conveying supporting frame which comprises a support body, a guide sleeve fixed to the support body and a plurality of guide wheels hinged to the support body, the head end of the guide sleeve faces downwards, and the tail end of the guide sleeve faces backwards. A pre-shaping sleeve located below the head end of the guide sleeve is arranged on the support body, an inner hole of the pre-shaping sleeve comprises a gradually-shrinking hole section, a neck section and a gradually-expanding hole section which are sequentially communicated from bottom to top, the width of the gradually-shrinking hole section is gradually reduced from bottom to top, and the width of the gradually-expanding hole section is gradually increased from bottom to top. The device can be used for conveying copper pipes. When a copper pipe is conveyed, the pipe fitting can be straightened in the first step under the action of the reducing hole section on the pre-shaping sleeve, and when the pipe fitting enters the guide sleeve to be straightened in the second step, abrasion between the pipe fitting and the guide sleeve is small, and the pipe fitting is not prone to being clamped.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning heat exchanger tube production technology, and in particular to an air conditioning heat exchanger tube raw material conveying support frame. Background Technology

[0002] In air conditioning heat exchangers, copper heat exchange tubes are generally used for heat exchange. When manufacturing heat exchangers, the purchasing personnel need to buy multiple bundles of rolled-up copper tubes in the early stage, and then use a cutting device to cut the copper tubes into sections before proceeding with the subsequent manufacturing of the heat exchangers.

[0003] When the cutting device cuts the coiled copper tube, one end of the copper tube is inserted into the cutting device and then cut. The copper tube must enter the cutting device in a straight line. Since copper tube coils are usually coiled into a ring shape, as shown in the attached drawings of patent CN 210996778U, the copper tube must first be straightened to a certain extent after being pulled out of the coil before being conveyed to the cutting device. In actual production, the copper tube can be straightened by setting guide sleeves and multiple guide wheels on the raw material conveying support frame. The specific operation method is as follows: install the guide sleeves and guide wheels above the copper tube coil, then draw the copper tube from the inner circle of the annular copper tube coil, allowing the copper tube to pass through the first end of the guide sleeve, pass through each guide wheel, and then be pulled out from the end of the guide sleeve, thereby initially straightening the copper tube.

[0004] However, this approach also has some problems. Because the copper tube coil is circular, the position of the copper tube leading out is different at different times. Therefore, when the pulled-out copper tube enters the first end of the guide sleeve, it will be spiral-shaped, which is prone to wear between it and the first end of the guide sleeve. In severe cases, the spiral-shaped copper tube may get stuck at the entrance of the guide sleeve. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a support frame for conveying raw materials for air conditioning heat exchange tubes. This device can be used to convey copper tubes and to initially straighten the copper tubes during the conveying process.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] An air conditioning heat exchanger tube material conveying support frame includes: a support body, a guide sleeve fixed on the support body, and a plurality of guide wheels hinged to the support body. The first end of the guide sleeve faces downward and the last end of the guide sleeve faces backward. A pre-shaping sleeve is provided on the support body below the first end of the guide sleeve. The inner hole of the pre-shaping sleeve includes a tapered section, a neck section, and a widening section connected sequentially from bottom to top. The width of the tapered section gradually decreases from bottom to top, and the width of the widening section gradually increases from bottom to top.

[0008] In a preferred embodiment of this utility model, both the tapering and widening hole sections are conical, and the included angle b of the two generatrices of the axial section of the tapering hole section is greater than the included angle c of the two generatrices of the axial section of the widening hole section.

[0009] In a preferred embodiment of this utility model, the axial length of the tapered section is greater than the axial length of the widening section.

[0010] In a preferred embodiment of this utility model, the support body is provided with a lifting seat and a lifting driver that can drive the lifting seat to move up and down, and the pre-shaping sleeve is fixed on the lifting seat.

[0011] In a preferred embodiment of this utility model, the support body is provided with a lifting guide rail, and the lifting seat is fixed with a slide block that slides with the lifting guide rail.

[0012] In a preferred embodiment of this utility model, the guide sleeve has a curved section, and a notch is provided at the inner bend of the curved section, with the guide wheel located at the notch.

[0013] The beneficial effects of this utility model are as follows: After pulling out the inner coil of the copper tube, the copper tube passes through the pre-forming sleeve, and then the copper tube enters from the beginning of the guide sleeve, passes through each guide wheel, and is then pulled out from the end of the guide sleeve. During the tube cutting process, the traction device continues to pull the tube leading from the end of the guide sleeve backward, thus realizing automatic feeding of the tube and preliminary straightening of the tube. During the automatic feeding of the tube, under the action of the tapered section on the pre-forming sleeve, the tube can be straightened in the first step, so that when the tube enters the beginning of the guide sleeve, the wear is small and it is not easy to get stuck. Moreover, since the inner hole of the pre-forming sleeve is composed of three sections: tapered section, neck section, and widening section, even if the tube is still spiral after entering the tapered section of the pre-forming sleeve, it can still enter the widening section, avoiding the tube being stuck in the pre-forming sleeve. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the utility model in use;

[0016] Figure 3 yes Figure 2 Enlarged view of section A;

[0017] Figure 4 This is a sectional view of the pre-shaped sleeve. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly. Furthermore, descriptions involving "preferred," "second-preferred," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "preferred" or "second-preferred" may explicitly or implicitly include at least one of those features.

[0020] Reference Figures 1 to 4 This utility model proposes a support frame for conveying raw materials for air conditioning heat exchange tubes, including a support body 1, a guide sleeve 2 fixed on the support body 1, and several guide wheels 3 hinged on the support body 1. The first end of the guide sleeve 2 faces downward and the last end of the guide sleeve 2 faces backward. A pre-shaping sleeve 4 is provided on the support body 1 below the first end of the guide sleeve 2. The inner hole of the pre-shaping sleeve 4 includes a tapered section 41, a neck section 42, and a widening section 43 connected sequentially from bottom to top. The width of the tapered section 41 gradually decreases from bottom to top, and the width of the widening section 43 gradually increases from bottom to top.

[0021] Preferably, the guide sleeve 2 has a curved section 21, and a notch 211 is provided at the inner bend of the curved section 21, and the guide wheel 3 is located at the notch 211.

[0022] Reference Figure 2 and Figure 3 The working principle of this utility model is as follows: After pulling out the inner coil of the copper tube roll 8, the copper tube is passed through the pre-shaped sleeve, and then the copper tube is inserted from the beginning of the guide sleeve 2, passes through each guide wheel 3, and is then pulled out from the end of the guide sleeve 2. During the tube cutting process, the traction device continues to pull the tube fitting 81 led out from the end of the guide sleeve 2 backward, thereby realizing the automatic feeding of the tube fitting 81. During the automatic feeding process of pipe fitting 81, the tapered section 41 on the pre-forming sleeve can straighten pipe fitting 81 in the first step, so that when pipe fitting 81 enters the first end of guide sleeve 2, the wear is small and it is not easy to get stuck. Since the inner hole of pre-forming sleeve 4 is composed of three sections: tapered section 41, neck section 42 and widening section 43, even if pipe fitting 81 is still spiral after entering the tapered section of pre-forming sleeve 4, it can also enter the widening section, thus avoiding pipe fitting 81 from getting stuck in pre-forming sleeve 4.

[0023] In a preferred embodiment of this invention, the axial length of the converging orifice section 41 is greater than the axial length of the widening orifice section 43. Both the converging orifice section 41 and the widening orifice section 43 are conical. The included angle b of the two generatrices of the axial section of the converging orifice section 41 is greater than the included angle c of the two generatrices of the axial section of the widening orifice section, for example, the included angle b is 75 degrees and the included angle c is 45 degrees. With this design, after the pipe 81 is shaped by the converging orifice section 41, the widening orifice section also has a certain straightening effect on the pipe 81.

[0024] Furthermore, the support body 1 is provided with a lifting seat 51 and a lifting driver 52 capable of driving the lifting seat 51 to move up and down. The pre-forming sleeve 4 is fixed on the lifting seat 51. The support body 1 is provided with a lifting guide rail 53, and a slide seat 54 that slides with the lifting guide rail 53 is fixed on the lifting seat 51. The lifting driver 52 can be a motor, cylinder, hydraulic cylinder, or other device. In this design, the pre-forming sleeve 4 can be moved up and down as needed to accommodate copper tube coils 8 of different sizes.

[0025] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An air conditioner heat exchange tube raw material conveying support frame, characterized by, The application relates to a support body (1), a guide sleeve (2) fixed on the support body (1), and a plurality of guide wheels (3) hinged on the support body (1), wherein the front end of the guide sleeve (2) faces downward, the rear end of the guide sleeve (2) faces backward, a pre-shaping sleeve (4) is arranged on the support body (1) below the front end of the guide sleeve (2), the inner hole of the pre-shaping sleeve (4) comprises a gradually-reduced hole section (41), a neck section (42) and a gradually-broadened hole section (43) which are sequentially communicated from bottom to top, the width of the gradually-reduced hole section (41) gradually reduces from bottom to top, and the width of the gradually-broadened hole section (43) gradually increases from bottom to top. The gradually-reduced hole section (41) and the gradually-broadened hole section (43) are both conical, the included angle b of the two generatrices of the axial section of the gradually-reduced hole section (41) is greater than the included angle c of the two generatrices of the axial section of the gradually-broadened hole section (43).

2. The support frame for conveying raw materials of heat exchange tubes of an air conditioner according to claim 1, wherein The axial length of the gradually-reduced hole section (41) is greater than the axial length of the gradually-broadened hole section (43).

3. The support frame according to claim 2, wherein The support body (1) is provided with a lifting seat (51) and a lifting driver (52) capable of driving the lifting seat (51) to move up and down, and the pre-shaping sleeve (4) is fixed on the lifting seat (51).

4. The support frame according to claim 1, wherein The support body (1) is provided with a lifting guide rail (53), and the lifting seat (51) is fixed with a sliding seat (54) which is in sliding cooperation with the lifting guide rail (53).

5. The support frame according to claim 4, wherein the support frame is made of a material selected from the group consisting of stainless steel, aluminum, and copper. The guide sleeve (2) has a curved section (21), the inner bending part of the curved section (21) is provided with a notch (211), and the guide wheel (3) is located at the notch (211).

6. The support frame for conveying raw materials of heat exchange tubes of an air conditioner according to claim 1, wherein ​

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