Capillary tube coating removal device for refrigeration equipment

Abstract

The present invention belongs to the technical field of pipeline decoating, specifically a refrigeration equipment for capillary decoating device. The device is installed on the equipment table, and a decoating length driving mechanism is installed on the reverse side of the equipment table. Two sets of connecting plates are fixedly installed on the front and rear ends of the upper side of the output end of the length driving mechanism. The body of the equipment table is provided with a longitudinal track giving groove. Through the composition of a linear slide rail, a slider and a length driving mechanism, the decoating tool can be controlled and driven to move in the longitudinal direction, thereby controlling the length of the cutting coating; through the combination of components such as a tapered sleeve and a depth adjustment cylinder, the decoating tool can control the cutting depth and control the depth of the cutting coating; in case of wear and tear due to long-term use, the fine-tuning rotating handle is used to cooperate with the fine-tuning frame for adjustment; three sets of decoating tools are installed concentrically, which can evenly process the outer wall of the capillary and control the decoating depth at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline de-coating, in particular to a capillary de-coating device for refrigeration equipment. Background Art

[0002] With the fierce competition in the refrigeration industry, new materials and new processes are constantly being developed to reduce costs. The original heat exchanger used a combination of copper tubes and uncoated capillaries. After improvement, the heat exchanger uses a combination of aluminum tubes and uncoated capillaries. Due to electrochemical corrosion caused by direct contact between copper and aluminum, the outer surface of the uncoated capillary tube must be wrapped with aluminum foil or heat shrink sleeve to isolate it from the aluminum tube.

[0003] Coated capillaries have been introduced to the market. In order to facilitate the connection of refrigeration pipe systems, a certain length of coating on the end of the coated capillary tube needs to be removed before use. Because the outer diameter of the tube is relatively small, and there are outer diameter requirements, length requirements, multi-segment decoating requirements and decoating surface roughness requirements after decoating, it is difficult to achieve. Currently, there is no suitable decoating equipment on the market. Summary of the invention

[0004] The purpose of the present invention is to provide a capillary decoating device for refrigeration equipment to solve the problem raised in the above background technology that the outer diameter of the pipe is relatively small, and there are requirements on the outer diameter, length, multi-stage decoating and surface roughness of the decoating after decoating, so it is difficult to implement and there is currently no suitable decoating equipment in the market.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a capillary decoating device for refrigeration equipment, comprising an equipment table, a decoating length driving mechanism is installed at the bottom of the equipment table, a lead screw nut bracket is fixedly installed on the upper side of the output end of the coating length driving mechanism, a clearance groove is longitudinally opened on the body of the equipment table, the lead screw nut bracket passes through the clearance groove, and two groups of linear slide rails are rigidly connected to the top of the equipment table in the transverse direction, the two groups of linear slide rails are arranged in parallel front and back, and the two groups of linear slide rails are respectively located on both sides of the clearance groove, and the top of the lead screw nut bracket and the two groups of linear slide blocks are respectively connected to the transition connecting plate by screws The top end of the transition connecting plate is connected to the bottom plate by screws, a decoating bracket is longitudinally arranged on the right side of the top end of the bottom plate, a spindle support flange is embedded in the right side of the decoating bracket, a first support bearing is embedded in the inner cavity of the spindle support flange, a spindle is horizontally penetrated through the inner cavity of the first support bearing, a pulley transmission mechanism is arranged at the right end of the spindle, a cutting drive motor is installed on the rear side of the top end of the transition connecting plate through a motor seat, an output shaft of the cutting drive motor is connected to the spindle transmission through a pulley transmission mechanism, a cutting shell is connected to the left side wall of the decoating bracket by screws, and sliding grooves are provided on the upper and lower surfaces of the cutting shell The outer wall of the main shaft is sleeved with a tapered sleeve, and the inner cavity of the tapered sleeve is embedded with a second support bearing, and the second support bearing is sleeved on the outer wall of the main shaft. The bottom front end of the transition connecting plate is fixedly connected with a depth adjustment cylinder through a clamping piece, and a push rod is screwed on the left side of the output end of the depth adjustment cylinder, and the left end of the push rod is connected to a feed frame through a pin shaft. The feed frame is U-shaped, and the feed frame is stuck on the outside of the cutting shell. The rear end of the feed frame is connected to the transition connecting plate through a pin shaft, and the upper and lower ends of the feed frame are correspondingly screwed with adjusting screws, and the adjusting screw passes through the sliding groove on the cutting shell. The adjusting screw The other end is embedded in the outer wall of the tapered sleeve, and the left end of the outer wall of the spindle is sleeved with a tool mounting frame, and three groups of coated tools are connected to the tool mounting frame through a connecting pin, and three groups of return springs are equidistantly supported on the left side of the inner cavity of the cutting shell, and the three groups of return springs are respectively supported between the cutting shell and the three groups of coated tools, and a protective cover is sleeved on the left side of the outer wall of the cutting shell, and a through pipe hole is coaxially provided in the protective cover and the middle part of the spindle, the front end of the transition connecting plate is fixedly connected with a fine-tuning frame by screws, a fine-tuning rotating handle is screwed on the left side of the fine-tuning frame, and the right end of the fine-tuning frame connected by screws is supported on the left side wall of the feed frame.

[0006] Preferably, the equipment table top is connected to the two sets of linear guide rails by screws.

[0007] Preferably, the right end of the decoating tool is an inclined surface, and the inclined surface of the decoating tool is matched with the left side wall of the tapered sleeve.

[0008] Preferably, an arc-shaped groove is provided on the right outer wall of the decoating tool, and the return spring is clamped in the arc-shaped groove.

[0009] Preferably, the length drive mechanism includes a servo drive motor and a ball screw mechanism, the ball screw mechanism is installed on the left end of the output shaft of the servo drive motor through a coupling, the left end of the ball screw mechanism is connected to the bottom left side of the equipment table through a support bearing assembly, and the screw nut bracket is connected to the upper side of the ball sleeve assembly of the ball screw mechanism through screws.

[0010] Compared with the prior art, the present invention has the following advantages: a capillary tube de-coating device for refrigeration equipment has the following advantages:

[0011] 1) Through the composition of linear slide rails, sliders and length drive mechanisms, the distance of the driven coating tool moving in the lateral direction can be controlled, thereby controlling the length of the cutting coating;

[0012] 2) Through the combination of the tapered sleeve and the depth adjustment cylinder and other components, the cutting depth of the coated tool is regulated and the cutting depth of the coating is controlled;

[0013] 3) Use the fine-tuning knob and the fine-tuning frame to adjust the accuracy. If the accuracy decreases after long-term use, use the fine-tuning knob and the fine-tuning frame to adjust it;

[0014] 4) Three sets of coating tools are installed concentrically, which can remove the coating evenly and at equal depth on the outer wall of the capillary. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0017] In the figure: 1 equipment table, 2 linear slide rail, 3 slider, 4 transition connecting plate, 5 cutting drive motor, 6 pulley transmission mechanism, 7 bottom plate, 8 decoating bracket, 9 spindle support flange, 10 first support bearing, 11 spindle, 12 cutting housing, 13 taper sleeve, 14 second support bearing, 15 depth adjustment cylinder, 16 push rod, 17 feed frame, 18 adjustment screw, 19 tool mounting frame, 20 decoating tool, 21 return spring, 22 protective cover, 23 fine-tuning frame, 24 fine-tuning knob, 25 servo drive motor, 26 ball screw mechanism, 27 screw nut bracket. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-2The present invention provides a technical solution: a capillary coating removal device for refrigeration equipment, comprising an equipment table 1, a coating removal length driving mechanism is installed at the bottom of the equipment table 1, a lead screw nut bracket 27 is fixedly installed on the upper side of the output end of the coating length driving mechanism, a clearance groove is longitudinally opened on the body of the equipment table 1, the lead screw nut bracket 27 runs through the clearance groove, and two groups of linear slide rails 2 are rigidly connected to the top of the equipment table 1 in the transverse direction, the two groups of linear slide rails 2 are arranged in parallel front and back, and the two groups of linear slide rails 2 are respectively located on both sides of the clearance groove, the top of the lead screw nut bracket 27 and the two groups of linear slide blocks 3 are respectively fixed to the transition connecting plate 4 by screws, and the top of the transition connecting plate 4 is connected by screws It is connected to the bottom plate 7, a decoating bracket 8 is longitudinally arranged on the right side of the top end of the bottom plate 7, a spindle support flange 9 is embedded on the right side of the decoating bracket 8, a first support bearing 10 is embedded in the inner cavity of the spindle support flange 9, a spindle 11 is horizontally penetrated through the inner cavity of the first support bearing 10, a pulley transmission mechanism 6 is arranged on the right end of the spindle 11, a cutting drive motor 5 is installed on the rear side of the top end of the transition connecting plate 4 through a motor seat, the output shaft of the cutting drive motor 5 is connected to the spindle 11 through the pulley transmission mechanism 6, a cutting housing 12 is connected to the left side wall of the decoating bracket 8 through screws, sliding grooves are provided on the upper and lower surfaces of the cutting housing 12, a tapered sliding sleeve 13 is sleeved on the outer wall of the spindle 11, and a tapered sliding sleeve 13 is provided on the outer wall of the spindle 11. A second support bearing 14 is embedded in the inner cavity of the sliding sleeve 13, and the second support bearing 14 is sleeved on the outer wall of the main shaft 11. The bottom front end of the transition connecting plate 4 is fixedly connected with a depth adjustment cylinder 15 through a clamping piece. A push rod 16 is screwed on the left side of the output end of the depth adjustment cylinder 15. The left end of the push rod 16 is connected to a feed frame 17 through a pin shaft. The feed frame 17 is U-shaped, and the feed frame 17 is stuck on the outside of the cutting shell 12. The rear end of the feed frame 17 is connected to the transition connecting plate 4 through a pin shaft. The upper and lower ends of the feed frame 17 are correspondingly screwed with an adjusting screw 18, and the adjusting screw 18 passes through the sliding groove on the cutting shell 12. The other end of the adjusting screw 18 is embedded in the taper sliding sleeve 1 3, a tool mounting frame 19 is sleeved on the left end of the outer wall of the spindle 11, and three groups of coated tools 20 are connected to the tool mounting frame 19 through a connecting pin. Three groups of return springs 21 are equidistantly supported on the left side of the inner cavity of the cutting shell 12, and the three groups of return springs 21 are respectively supported between the cutting shell 12 and the three groups of coated tools 20. A protective cover 22 is sleeved on the left side of the outer wall of the cutting shell 12, and a through-tube hole is coaxially opened in the middle of the spindle 11. The front end of the transition connecting plate 4 is fixedly connected with a fine-tuning frame 23 by screws, and a fine-tuning rotating handle 24 is screwed on the left side of the fine-tuning frame 23. The right end of the fine-tuning frame 24 is supported on the left side wall of the feed frame 17 by screw connection.

[0020] Among them, the equipment table 1 is connected to the two sets of linear guide rails 2 by screws, the right end of the decoating tool 20 is an inclined surface, and the inclined surface of the decoating tool 20 is adapted to the left side wall of the tapered sleeve 13, an arc groove is opened on the right outer wall of the decoating tool 20, and the reset spring 21 is clamped in the arc groove, the length driving mechanism includes a servo drive motor 25 and a ball screw mechanism 26, the ball screw mechanism 26 is installed on the left end of the output shaft of the servo drive motor 25 through a coupling, the left end of the ball screw mechanism 26 is connected to the bottom left side of the equipment table 1 through a support bearing assembly, and the screw nut bracket 27 is connected to the upper side of the ball sleeve assembly of the ball screw mechanism 26 by screws.

[0021] This solution includes a lateral adjustment mechanism, a depth adjustment mechanism and a cutting adjustment mechanism. The capillary moves through the main shaft 11 and the through-tube hole in the protective cover 22. The diameter of the capillary is smaller than the diameter of the through-tube hole. The left end of the coating removal tool 20 removes the coating of the capillary:

[0022] The lateral adjustment mechanism includes a linear guide rail 2, a slider 3, a transition connecting plate 4, a servo drive motor 25, a ball screw mechanism 26, a screw nut bracket 27 and other structures. The servo drive motor 25 serves as a power source. The servo drive motor 25 regulates the lateral left and right movement of the ball sleeve assembly of the ball screw mechanism 26 by rotating the rotor shaft forward and reversely (the principle of the ball screw mechanism 26 is a prior art and is not described here). The ball sleeve assembly links the screw nut bracket 27 and the slider 3, so that the slider 3 moves laterally to the left or right on the linear guide rail 2, thereby adjusting the depth adjustment mechanism and the cutting adjustment mechanism on the upper side. By changing the structure on the upper side to change the position of the coating removal cutting, the function of controlling the length of the coating removal can be achieved;

[0023] The depth adjustment mechanism includes a tapered sleeve 13, a second support bearing 14, a depth adjustment cylinder 15, a push rod 16, a feed frame 17, an adjustment screw 18, a return spring 21, a fine-tuning frame 23, a fine-tuning knob 24 and other structures. The depth adjustment cylinder 15 serves as a power source mechanism for depth adjustment. The output end of the depth adjustment cylinder 15 pushes the feed frame 17 to move left or right through the push rod 16. The rear end of the feed frame 17 is movably connected to the transition connecting plate 4 through a pin shaft, so that the feed frame 17 moves in an arc around the pin shaft with its pin shaft as a fulcrum. The feed frame 17 drives the tapered sleeve 13 to move left or right through the adjusting screw 18. The second support bearing 14 plays a role in reducing friction. When the tapered sleeve 13 moves to the left, it pushes the decoating tool 20 to rotate around the pin on the tool mounting frame 19, so that the left ends of the three groups of decoating tools 20 gather together. On the contrary, when the tapered sleeve 13 moves to the right, the left ends of the three groups of decoating tools 20 separate. The reset spring 21 serves as a structure that always keeps the decoating tools 20 in tension, preventing the left end of the decoating tools 20 from loosening and affecting the cutting depth. The decoating depth is adjusted by adjusting the three groups of decoating tools 20 to gather or separate. By rotating the fine-tuning knob 24, the fine-tuning knob 24 is fed or retracted on the fine-tuning frame 23, so as to achieve fine-tuning of the left and right positions of the feed frame 17.

[0024] The cutting adjustment mechanism includes a cutting drive motor 5, a pulley transmission mechanism 6, a first support bearing 10, a spindle 11, a tool mounting frame 19, and a decoating tool 20. The capillary moves through the spindle 11 and the through-tube hole in the protective cover 22. The cutting drive motor 5 provides driving power for the spindle 11 through the pulley transmission mechanism 6. The first support bearing 10 plays a role in reducing friction when the spindle 11 rotates. The spindle 11 drives the decoating tool 20 to rotate through the tool mounting frame 19. The rotating decoating tool 20 cuts the capillary surface in the middle of the spindle 11.

[0025] By cooperating with the lateral adjustment mechanism, the depth adjustment mechanism and the cutting adjustment mechanism, the capillary can be cut to a fixed length and a fixed depth to remove the coating.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A capillary tube de-coating device for refrigeration equipment, comprising an equipment table (1), characterized in that: A de-coating length driving mechanism is installed at the bottom of the equipment table (1), and a lead screw nut bracket (27) is fixedly installed on the upper side of the output end of the de-coating length driving mechanism. A clearance groove is longitudinally opened on the body of the equipment table (1), and the lead screw nut bracket (27) runs through the clearance groove. Two groups of linear slide rails (2) are rigidly connected to the top of the equipment table (1) in a transverse direction. The two groups of linear slide rails (2) are arranged in parallel front and back, and the two groups of linear slide rails (2) are respectively located on both sides of the clearance groove. The top of the lead screw nut bracket (27) and the two groups of linear slide blocks (3) are respectively fixed to the transition connecting plate (4) by screws. The top of the transition connecting plate (4) is connected to the bottom plate (7) by screws. A de-coating bracket (8) is longitudinally arranged on the right side of the top of the bottom plate (7). A spindle support flange (9) is embedded in the right side of the decoating bracket (8), a first support bearing (10) is embedded in the inner cavity of the spindle support flange (9), a spindle (11) is transversely penetrated through the inner cavity of the first support bearing (10), a pulley transmission mechanism (6) is arranged at the right end of the spindle (11), a cutting drive motor (5) is installed at the rear side of the top end of the transition connecting plate (4) through a motor seat, an output shaft of the cutting drive motor (5) is connected to the spindle (11) through a pulley transmission mechanism (6), a left side wall of the decoating bracket (8) is connected to a cutting housing (12) through screws, sliding grooves are provided on the upper and lower surfaces of the cutting housing (12), and a tapered sleeve is sleeved on the outer wall of the spindle (11). (13), a second support bearing (14) is embedded in the inner cavity of the tapered sleeve (13), and the second support bearing (14) is sleeved on the outer wall of the main shaft (11). The bottom front end of the transition connecting plate (4) is fixedly connected to a depth adjustment cylinder (15) through a clamping piece, and a push rod (16) is screwed on the left side of the output end of the depth adjustment cylinder (15), and the left end of the push rod (16) is connected to a feed frame (17) through a pin shaft. The feed frame (17) is U-shaped, and the feed frame (17) is clamped on the outer side of the cutting shell (12). The rear end of the feed frame (17) is connected to the transition connecting plate (4) through a pin shaft, and the upper and lower ends of the feed frame (17) are correspondingly screwed with an adjusting screw (18). The adjusting screw (18) passes through the sliding groove on the cutting housing (12), and the other end of the adjusting screw (18) is embedded in the outer wall of the tapered sleeve (13). The left end of the outer wall of the spindle (11) is sleeved with a tool mounting frame (19), and three groups of decoating tools (20) are connected to the tool mounting frame (19) through connecting pins. The left side of the inner cavity of the cutting housing (12) is supported by three groups of return springs (21) at equal distances, and the three groups of return springs (21) are respectively supported between the cutting housing (12) and the three groups of decoating tools (20). The left side of the outer wall of the cutting housing (12) is sleeved with a protective cover (22).The protective cover (22) is coaxially provided with a through-tube hole in the middle of the main shaft (11); the front end of the transition connecting plate (4) is fixedly connected to a fine-tuning frame (23) by screws; a fine-tuning rotating handle (24) is screwed to the left side of the fine-tuning frame (23); and the right end of the fine-tuning rotating handle (24) is supported on the left side wall of the feed frame (17); The equipment table (1) and the two sets of linear guide rails (2) are connected via screws; The right end of the coating removal tool (20) is an inclined surface, and the inclined surface of the coating removal tool (20) is matched with the left side wall of the tapered sliding sleeve (13); An arc-shaped groove is provided on the right outer wall of the coating removal tool (20), and a return spring (21) is clamped in the arc-shaped groove.

2. The capillary tube de-coating device for refrigeration equipment according to claim 1, characterized in that: The de-coating length driving mechanism comprises a servo drive motor (25) and a ball screw mechanism (26), wherein the ball screw mechanism (26) is installed on the left end of the output shaft of the servo drive motor (25) via a coupling, and the left end of the ball screw mechanism (26) is connected to the left side of the bottom of the equipment table (1) via a support bearing assembly, and the screw nut bracket (27) is connected to the upper side of the ball sleeve assembly of the ball screw mechanism (26) via screws.

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