A heat pipe pipe shrinking machine for furniture production

Abstract

The utility model discloses a kind of heat pipe pipe shrinking machine for furniture production, it is related to heat pipe pipe shrinking machine technical field, including rack, limiting unit, rack is fixedly installed with mounting seat and feeding unit, mounting seat is fixedly installed with heat shrinkage shaping unit, limiting unit is fixedly installed on mounting seat and rack respectively;Heat shrinkage shaping unit includes installation cylinder, arc steel sheet, installation cylinder is fixedly installed on mounting seat.It is beneficial to improve the accuracy of arc steel sheet to exert force on pipe fitting by the cooperation of the first hydraulic telescopic mechanism and the second hydraulic telescopic mechanism, reduce pressure fluctuation, can stably pressurize pipe fitting, make arc steel sheet and pipe fitting buffer contact by disc spring group, avoid damage caused by hard contact to pipe fitting, after pipe shrinking, make arc steel sheet can continue to adhere on pipe fitting by disc spring group, effectively reduce the springback deformation after pipe fitting cooling, effectively improve the quality of pipe fitting pipe shrinking processing.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe shrinking machine technology, and in particular to a heat pipe shrinking machine for furniture production. Background Technology

[0002] In furniture manufacturing, heat pipe shrinking machines, also known as heat shrink tubing machines or heat shrinking machines, are mainly used for the reduction of the diameter of metal pipes, such as steel pipes and aluminum pipes. They are often used to make furniture support structures, armrests, chair legs and other parts.

[0003] A search revealed that Chinese patent application CN217798535U discloses a heat pipe shrinking machine, which mainly achieves automatic feeding and heat shrinking of metal pipes through a feeding mechanism, a picking and placing mechanism, a placing mechanism, and a pushing mechanism.

[0004] Compared with existing technologies in related fields, it can be seen that existing pipe fittings are processed by directly applying pressure to shrink the pipe. When processing thin pipe fittings, hard contact can easily cause damage to the pipe fittings, and the springback deformation of the pipe fittings after processing is obvious, which affects the quality of pipe fitting processing. Utility Model Content

[0005] The purpose of this invention is to provide a heat pipe shrinking machine for furniture production in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions: A heat pipe shrinking machine for furniture production includes a frame and a limiting unit. A mounting base and a feeding unit are fixedly installed on the frame. A heat shrinking forming unit is fixedly installed on the mounting base. The limiting unit is fixedly installed on the mounting base and the frame respectively. The heat shrink forming unit includes a mounting cylinder and an arc-shaped steel plate. The mounting cylinder is fixedly mounted on a mounting base. A first hydraulic telescopic mechanism and a heating component are fixedly arranged inside the mounting cylinder. A forming module is fixedly mounted on the telescopic end of the first hydraulic telescopic mechanism. The forming module is provided with a mounting groove. A second hydraulic telescopic mechanism is fixedly arranged inside the mounting groove. An elastic component is fixedly mounted on the telescopic end of the second hydraulic telescopic mechanism. The arc-shaped steel plate is fixedly mounted on the elastic component.

[0007] Furthermore, a ceramic layer is fixedly installed on the surface of the curved steel plate that contacts the pipe.

[0008] Furthermore, the elastic component includes a disc spring assembly, which is fixedly installed on the telescopic end of the second hydraulic telescopic mechanism. The disc spring assembly is fixedly connected to the arc-shaped steel plate, and a first pressure sensor is fixedly installed on the portion between the disc spring assembly and the arc-shaped steel plate.

[0009] Furthermore, the heating assembly includes a high-frequency coil heating mechanism, which is fixedly arranged inside the mounting cylinder, and a temperature sensor is fixedly installed on the housing of the high-frequency coil heating mechanism.

[0010] Furthermore, the limiting unit includes a bidirectional displacement mechanism and a third hydraulic telescopic mechanism. The bidirectional displacement mechanism is fixedly installed on the frame, and a first mounting bracket is installed at both ends of the bidirectional displacement mechanism through threaded connection. The first mounting bracket is located on both sides of the mounting cylinder, and an outer clamping assembly is fixedly installed on the first mounting bracket. The third hydraulic telescopic mechanism is fixedly installed on the mounting base, and a support base is fixedly installed on the telescopic end of the third hydraulic telescopic mechanism. A fourth hydraulic telescopic mechanism is arranged on the support base, and a third pressure sensor is fixedly installed on the telescopic end of the fourth hydraulic telescopic mechanism.

[0011] Furthermore, the outer clamping assembly includes a second pressure sensor, which is fixedly mounted on opposite sides of the two first mounting brackets. A magnetic base is fixedly mounted on the second pressure sensor, and a V-shaped bracket is magnetically connected to the magnetic base.

[0012] Furthermore, the feeding unit includes a lateral displacement mechanism, which is fixedly mounted on the frame. A second mounting bracket is installed on the lateral displacement mechanism via a threaded connection. A pneumatic three-jaw chuck mechanism is fixedly mounted on the second mounting bracket. The center points of the pneumatic three-jaw chuck mechanism and the mounting cylinder are on the same axial side.

[0013] The advantages compared to existing technologies are as follows: 1. By coordinating the first and second hydraulic telescopic mechanisms to apply pressure, the accuracy of the force applied by the arc-shaped steel plate to the pipe fitting is improved, pressure fluctuations are reduced, and stable pressure is applied to the pipe fitting. The disc spring assembly allows the arc-shaped steel plate to make buffered contact with the pipe fitting, avoiding damage caused by hard contact. After the pipe shrinking is completed, the disc spring assembly allows the arc-shaped steel plate to continue to adhere to the pipe fitting, effectively reducing the springback deformation of the pipe fitting after cooling and effectively improving the quality of the pipe shrinking process.

[0014] 2. The outer side of the pipe fitting is center-limited by a V-shaped bracket, and the inner wall of the pipe fitting is center-positioned by a third pressure sensor and a fourth hydraulic telescopic mechanism. The pipe fitting is supported and limited both internally and externally to ensure the coaxiality of the pipe fitting and the machining center, reduce the deviation of the pipe fitting, and ensure the quality of pipe fitting processing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first isometric structural schematic diagram of a heat pipe shrinking machine for furniture production according to the present invention; Figure 2 This is a second isometric structural schematic diagram of a heat pipe shrinking machine for furniture production according to the present invention; Figure 3 This is a partial cross-sectional structural diagram of a heat pipe shrinking machine for furniture production according to the present invention; Figure 4 This utility model describes a heat pipe shrinking machine for furniture production. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a partial structural schematic diagram of a heat pipe shrinking machine for furniture production according to the present invention; Figure 6 This utility model describes a heat pipe shrinking machine for furniture production. Figure 5 Enlarged structural diagram at point B; Figure 7 This is a cross-sectional structural diagram of a heat pipe shrinking machine for furniture production according to the present invention; Figure 8 This utility model describes a heat pipe shrinking machine for furniture production. Figure 7 Enlarged structural diagram at point C.

[0017] The annotations in the attached figures are explained as follows: 1. Frame; 2. Mounting base; 301. Mounting cylinder; 302. First hydraulic telescopic mechanism; 303. Forming module; 304. Mounting slot; 305. Second hydraulic telescopic mechanism; 306. Disc spring assembly; 307. Arc-shaped steel plate; 308. High-frequency coil heating mechanism; 309. Temperature sensor; 310. First pressure sensor; 401. Bidirectional displacement mechanism; 402. First mounting bracket; 403. Second pressure sensor; 404. Magnetic base; 405. V-shaped bracket; 406. Third hydraulic telescopic mechanism; 407. Support base; 408. Fourth hydraulic telescopic mechanism; 409. Third pressure sensor; 501. Lateral displacement mechanism; 502. Second mounting bracket; 503. Pneumatic three-jaw chuck mechanism. Detailed Implementation

[0018] like Figures 1-8As shown, a heat pipe shrinking machine for furniture production includes a frame 1 and a limiting unit. A mounting base 2 and a feeding unit are fixedly installed on the frame 1. A heat shrink forming unit is fixedly installed on the mounting base 2. The limiting unit is fixedly installed on the mounting base 2 and the frame 1 respectively. The limiting unit limits the pipe, and the feeding unit feeds the pipe so that it enters the heat shrink forming unit. The heat shrink forming unit heats and shrinks the pipe. like Figures 1-5 , Figure 7 As shown, the heat shrink forming unit includes a mounting cylinder 301 and an arc-shaped steel plate 307. The mounting cylinder 301 is fixedly mounted on the mounting base 2. A first hydraulic telescopic mechanism 302 and a heating component are fixedly arranged inside the mounting cylinder 301. A forming module 303 is fixedly mounted on the telescopic end of the first hydraulic telescopic mechanism 302. The forming module 303 is provided with a mounting groove 304. A second hydraulic telescopic mechanism 305 is fixedly arranged inside the mounting groove 304. An elastic component is fixedly mounted on the telescopic end of the second hydraulic telescopic mechanism 305. The arc-shaped steel plate 307 is fixedly mounted on the elastic component. The first hydraulic telescopic mechanism 302, the second hydraulic telescopic mechanism 305, and the forming module 303 operate using existing technology. After the pipe enters the mounting cylinder 301, the heating component heats the pipe, facilitating its shrinkage. After the pipe is heated, the first hydraulic telescopic mechanism 302 drives the forming module. The forming module 303 moves, and the forming module 303 drives the arc-shaped steel plate 307 to move through the second hydraulic telescopic mechanism 305 and the elastic component, so that the arc-shaped steel plate 307 moves and fits against the outer wall of the pipe fitting. The elastic component makes the arc-shaped steel plate 307 and the pipe fitting make buffered contact, avoiding damage to the pipe fitting from hard contact. At the same time, according to the position of the arc-shaped steel plate 307, the second hydraulic telescopic mechanism 305 applies force to the arc-shaped steel plate 307 again through the elastic component, thereby improving the accuracy of the force applied by the arc-shaped steel plate 307 to the pipe fitting, reducing pressure fluctuations, and enabling stable pressure on the pipe fitting, thus improving the processing quality of the pipe fitting. After processing, during the decompression process of the first hydraulic telescopic mechanism 302 and the second hydraulic telescopic mechanism 305, the elastic component makes the arc-shaped steel plate 307 continue to fit against the pipe fitting, effectively reducing the springback deformation of the pipe fitting after cooling, and effectively improving the quality of the pipe shrinking process.

[0019] like Figure 4 As shown, a ceramic layer is fixedly installed on the surface of the arc-shaped steel plate 307 that contacts the pipe. The ceramic layer improves the high heat resistance of the arc-shaped steel plate 307, extends its service life, and avoids heat adhesion, allowing the arc-shaped steel plate 307 to better perform pipe shrinking processing.

[0020] like Figure 4As shown, the elastic component includes a disc spring assembly 306, which is fixedly installed on the telescopic end of the second hydraulic telescopic mechanism 305. The disc spring assembly 306 is fixedly connected to the arc-shaped steel plate 307. A first pressure sensor 310 is fixedly installed on the portion between the disc spring assembly 306 and the arc-shaped steel plate 307. The disc spring assembly 306 and the first pressure sensor 310 operate using existing technology. When the arc-shaped steel plate 307 performs tube shrinking processing on the pipe fitting, the first pressure sensor 310 detects the force applied by the arc-shaped steel plate 307 to the pipe fitting, thereby controlling and adjusting the force applied by the arc-shaped steel plate 307 to the pipe fitting as needed to ensure the quality of the tube shrinking processing. During the tube shrinking processing, the disc spring assembly 306 causes the arc-shaped steel plate 307 to buffer contact with the pipe fitting, avoiding damage to the pipe fitting caused by hard contact. After processing, the disc spring assembly 306 causes the arc-shaped steel plate 307 to continuously apply force to the pipe fitting, reducing the rebound and deformation of the pipe fitting and improving the processing quality of the pipe fitting.

[0021] like Figure 4 As shown, the heating assembly includes a high-frequency coil heating mechanism 308, which is fixedly arranged inside the mounting cylinder 301. A temperature sensor 309 is fixedly installed on the housing of the high-frequency coil heating mechanism 308. The temperature sensor 309 and the high-frequency coil heating mechanism 308 operate using existing technology. The high-frequency coil heating mechanism 308 heats the pipe fitting, facilitating pipe shrinking processing. The temperature sensor 309 detects the heating temperature of the high-frequency coil heating mechanism 308, thereby facilitating temperature control of the high-frequency coil heating mechanism 308 and ensuring the heating effect of the high-frequency coil heating mechanism 308 on the pipe fitting.

[0022] like Figure 1 , Figure 2 , Figures 5-8As shown, the limiting unit includes a bidirectional displacement mechanism 401 and a third hydraulic telescopic mechanism 406. The bidirectional displacement mechanism 401 is fixedly mounted on the frame 1. A first mounting bracket 402 is threaded onto both ends of the bidirectional displacement mechanism 401. The first mounting bracket 402 is located on both sides of the mounting cylinder 301. An outer clamping assembly is fixedly mounted on the first mounting bracket 402. The third hydraulic telescopic mechanism 406 is fixedly mounted on the mounting base 2. A support base 407 is fixedly mounted on the telescopic end of the third hydraulic telescopic mechanism 406. A fourth hydraulic telescopic mechanism 408 is arranged on the support base 407. A third pressure sensor 409 is fixedly mounted on the telescopic end of the fourth hydraulic telescopic mechanism 408. The bidirectional displacement mechanism 401, the third hydraulic telescopic mechanism 406, the fourth hydraulic telescopic mechanism 408, and the third pressure sensor 409 operate using existing technology. During operation, the pipe is placed between the outer clamping assemblies on the first mounting bracket 402. The bidirectional displacement mechanism 401 is driven by the first mounting bracket 402... The outer clamping assembly is moved to fit against the outer surface of the pipe fitting, thereby limiting the pipe fitting. The third hydraulic telescopic mechanism 406 drives the support base 407 to move to the inlet of the mounting cylinder 301. After the pipe fitting is placed into the mounting cylinder 301, the support base 407 drives the fourth hydraulic telescopic mechanism 408 and the third pressure sensor 409 into the pipe fitting. The fourth hydraulic telescopic mechanism 408 drives the third pressure sensor 409 to fit against the inner wall of the pipe fitting. The third pressure sensor 409 determines the telescopic length of the fourth hydraulic telescopic mechanism 408. While providing center positioning support for the pipe fitting, it can also avoid damage to the pipe fitting. The outer clamping assembly provides center limiting for the outer side of the pipe fitting, and the third pressure sensor 409 and the fourth hydraulic telescopic mechanism 408 provide center positioning for the inner wall of the pipe fitting. The pipe fitting is supported and limited from both inside and outside, ensuring the coaxiality of the pipe fitting and the machining center, reducing the deviation of the pipe fitting, and ensuring the quality of pipe fitting processing.

[0023] like Figure 2 , Figure 7As shown, the outer clamping assembly includes a second pressure sensor 403, which is fixedly mounted on the opposite sides of two first mounting brackets 402. A magnetic base 404 is fixedly mounted on the second pressure sensor 403, and a V-shaped bracket 405 is magnetically connected to the magnetic base 404. The second pressure sensor 403 and the magnetic base 404 operate using existing technology. A suitable V-shaped bracket 405 is selected according to the size of the pipe fitting, and the V-shaped bracket 405 is installed and fixed by the magnetic base 404. When the pipe fitting is being processed for tube reduction, the first mounting brackets 402 drive the V-shaped bracket 405 to move through the second pressure sensor 403 and the magnetic base 404, so that the V-shaped bracket 405 moves to the outside of the pipe fitting, thereby limiting the pipe fitting. The detection value of the second pressure sensor 403 ensures that the V-shaped bracket 405 is always in contact with the pipe fitting for center positioning, avoiding skewing during pipe fitting processing and improving processing quality.

[0024] like Figure 1 , Figure 2 , Figure 7 As shown, the feeding unit includes a lateral displacement mechanism 501, which is fixedly mounted on the frame 1. A second mounting bracket 502 is threadedly mounted on the lateral displacement mechanism 501, and a pneumatic three-jaw chuck mechanism 503 is fixedly mounted on the second mounting bracket 502. The center points of the pneumatic three-jaw chuck mechanism 503 and the mounting cylinder 301 are on the same axial side. The lateral displacement mechanism 501 and the pneumatic three-jaw chuck mechanism 503 operate using existing technology. The pneumatic three-jaw chuck mechanism 503 clamps and fixes one end of the pipe fitting. The lateral displacement mechanism 501 drives the pipe fitting to move through the second mounting bracket 502 and the pneumatic three-jaw chuck mechanism 503, thereby completing the automatic feeding of the pipe fitting, adjusting the pipe fitting shrinkage size, and improving processing efficiency.

[0025] Working principle: such as Figure 1 , Figure 2 , Figure 7 As shown, the pneumatic three-jaw chuck mechanism 503 clamps and fixes one end of the pipe fitting. The bidirectional displacement mechanism 401 drives the first mounting frame 402 to move. The first mounting frame 402 drives the V-shaped frame 405 to move through the second pressure sensor 403 and the magnetic base 404, so that the V-shaped frame 405 moves to the outside of the pipe fitting, thereby limiting the pipe fitting. The detection value of the second pressure sensor 403 ensures that the V-shaped frame 405 is always in contact with the pipe fitting for center positioning. The lateral displacement mechanism 501 drives the pipe fitting to move through the second mounting frame 502 and the pneumatic three-jaw chuck mechanism 503, so that the pipe fitting enters the mounting cylinder 301 for feeding. like Figure 1 , Figure 2 , Figures 5-8As shown, the third hydraulic telescopic mechanism 406 drives the support base 407 to move, so that the support base 407 moves to the inlet of the mounting cylinder 301. The support base 407 drives the fourth hydraulic telescopic mechanism 408 and the third pressure sensor 409 into the pipe fitting. The fourth hydraulic telescopic mechanism 408 drives the third pressure sensor 409 to fit against the inner wall of the pipe fitting. The telescopic length of the fourth hydraulic telescopic mechanism 408 is determined by the third pressure sensor 409 to provide center positioning support for the pipe fitting. When the pipe fitting is being loaded, the third hydraulic telescopic mechanism 406 drives the support base 407 to move in the opposite direction, and the fourth hydraulic telescopic mechanism 408 drives the third pressure sensor 409 to move in the opposite direction, so that the pipe fitting can always be center-limited. like Figures 1-5 , Figure 7 As shown, the pipe is heated by a high-frequency coil heating mechanism 308, and the temperature of the heating by the high-frequency coil heating mechanism 308 is detected by a temperature sensor 309. After the pipe is heated, the forming module 303 is moved by the first hydraulic telescopic mechanism 302. The forming module 303 moves the arc-shaped steel plate 307 by the second hydraulic telescopic mechanism 305, the disc spring group 306 and the first pressure sensor 310, so that the arc-shaped steel plate 307 moves to fit against the outer wall of the pipe. The second hydraulic telescopic mechanism 305 applies force to the arc-shaped steel plate 307 again by the disc spring group 306 and the first pressure sensor 310, thereby improving the accuracy of the force applied by the arc-shaped steel plate 307 to the pipe. like Figures 3-5 , Figure 7 As shown, after processing, the first hydraulic telescopic mechanism 302 and the second hydraulic telescopic mechanism 305 move in opposite directions, thereby releasing the force applied to the pipe fitting. During the force release process, the disc spring assembly 306 causes the arc-shaped steel plate 307 to continuously apply force to the pipe fitting, reducing the rebound and deformation of the pipe fitting and improving the quality of the pipe fitting.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A heat pipe shrinking machine for furniture production, characterized in that, It includes a frame (1) and a limiting unit. The frame (1) is fixedly mounted with a mounting base (2) and a feeding unit. The mounting base (2) is fixedly mounted with a heat shrink forming unit. The limiting unit is fixedly mounted on the mounting base (2) and the frame (1) respectively. The heat shrink forming unit includes a mounting cylinder (301) and an arc-shaped steel plate (307). The mounting cylinder (301) is fixedly mounted on the mounting base (2). A first hydraulic telescopic mechanism (302) and a heating component are fixedly arranged inside the mounting cylinder (301). A forming module (303) is fixedly mounted on the telescopic end of the first hydraulic telescopic mechanism (302). An installation groove (304) is provided on the forming module (303). A second hydraulic telescopic mechanism (305) is fixedly arranged inside the installation groove (304). An elastic component is fixedly mounted on the telescopic end of the second hydraulic telescopic mechanism (305). The arc-shaped steel plate (307) is fixedly mounted on the elastic component.

2. The heat pipe shrinking machine for furniture production according to claim 1, characterized in that: A ceramic layer is fixedly installed on the surface of the arc-shaped steel plate (307) that contacts the pipe.

3. A heat pipe shrinking machine for furniture production according to claim 1, characterized in that: The elastic component includes a disc spring assembly (306), which is fixedly installed on the telescopic end of the second hydraulic telescopic mechanism (305). The disc spring assembly (306) is fixedly connected to the arc-shaped steel plate (307). A first pressure sensor (310) is fixedly installed on the portion between the disc spring assembly (306) and the arc-shaped steel plate (307).

4. A heat pipe shrinking machine for furniture production according to claim 1, characterized in that: The heating assembly includes a high-frequency coil heating mechanism (308), which is fixedly arranged inside the mounting cylinder (301). A temperature sensor (309) is fixedly installed on the housing of the high-frequency coil heating mechanism (308).

5. A heat pipe shrinking machine for furniture production according to claim 1, characterized in that: The limiting unit includes a bidirectional displacement mechanism (401) and a third hydraulic telescopic mechanism (406). The bidirectional displacement mechanism (401) is fixedly installed on the frame (1). The two ends of the bidirectional displacement mechanism (401) are threadedly fitted with a first mounting bracket (402). The first mounting bracket (402) is located on both sides of the mounting cylinder (301). An outer clamping component is fixedly installed on the first mounting bracket (402). The third hydraulic telescopic mechanism (406) is fixedly installed on the mounting base (2). A support base (407) is fixedly installed on the telescopic end of the third hydraulic telescopic mechanism (406). A fourth hydraulic telescopic mechanism (408) is arranged on the support base (407). A third pressure sensor (409) is fixedly installed on the telescopic end of the fourth hydraulic telescopic mechanism (408).

6. A heat pipe shrinking machine for furniture production according to claim 5, characterized in that: The outer clamping assembly includes a second pressure sensor (403), which is fixedly mounted on opposite sides of the two first mounting brackets (402). A magnetic base (404) is fixedly mounted on the second pressure sensor (403), and a V-shaped bracket (405) is magnetically connected to the magnetic base (404).

7. A heat pipe shrinking machine for furniture production according to claim 1, characterized in that: The feeding unit includes a lateral displacement mechanism (501), which is fixedly installed on the frame (1). A second mounting bracket (502) is installed on the lateral displacement mechanism (501) by threaded connection. A pneumatic three-jaw chuck mechanism (503) is fixedly installed on the second mounting bracket (502). The center points of the pneumatic three-jaw chuck mechanism (503) and the mounting cylinder (301) are on the same axial side.

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