Automatic tube loading and unloading equipment of finned tube machine

Abstract

The utility model discloses an automatic tube loading and unloading device of a finned tube machine, which improves the production efficiency of finned tubes, reduces the labor intensity of workers and saves the labor cost. The finned tube machine comprises an internal processing cavity and a shell, and a first inlet and outlet tube opening and a second inlet and outlet tube opening are formed in the two ends of the internal processing cavity in the length direction; the core rod assembly comprises a core rod, a core rod tail end clamping and positioning mechanism and a core rod guide cylinder; the upper pipe and lower pipe slope comprises an upper pipe slope and a lower pipe slope, and an upper convex stopper is arranged at the pipe outlet position of the upper pipe slope; the pipe supporting roller assembly comprises a front pipe supporting roller set and a rear pipe supporting roller set; the pipe shifting piece assembly comprises a plurality of pipe shifting piece mechanisms, each pipe shifting piece mechanism comprises a pipe shifting piece and a lifting air cylinder, and the lifting air cylinders drive the pipe shifting pieces to ascend and descend; a pipe jacking cylinder; a front pipe traction machine; and a rear pipe fitting tractor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of finned tube machine feeding and discharging, in particular to an automatic feeding and discharging device of finned tube machine. BACKGROUND

[0002] Some finned heat exchange tubes of heat exchangers are produced by machining the surface of metal round tubes through a finned tube machine, and generally a single tube is fed into the processing bin of the finned tube machine for machining. In the machining process, the heat exchange tube is first placed into the finned tube machine, and then the finned tube machine is started for machining. After the finning is completed, the machined tube is finally taken out, and then the machining of the next heat exchange tube is performed.

[0003] This kind of machining type finned tube machine needs to be configured with a cylindrical core rod. Before machining, the core rod needs to be placed into the tube of the heat exchange tube. After machining, the core rod needs to be pulled out from the lumen of the heat exchange tube. In the actual process, the inner diameter of the machined heat exchange tube is generally reduced, and the core rod is tightly attached to the inner wall of the heat exchange tube. When taking out, a certain pulling force is needed to pull out. Since the heat exchange tube is long and heavy, the manual feeding and discharging of the finned tube machine of the prior art is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides an automatic feeding and discharging device of finned tube machine, which improves the production efficiency of finned tubes, reduces the labor intensity of workers, and saves labor cost.

[0005] An automatic feeding and discharging device of finned tube machine, characterized in that it comprises:

[0006] The finned tube machine comprises an internal processing cavity and a shell, and the length direction of the internal processing cavity is provided with a first inlet and outlet pipe and a second inlet and outlet pipe at both ends;

[0007] The core rod assembly comprises a core rod, a core rod tail end clamping and positioning mechanism, and a core rod guide cylinder;

[0008] The feeding and discharging slope comprises a feeding slope and a discharging slope, and the feeding slope is provided with an upper convex stop at the tube outlet position;

[0009] The tube supporting roller assembly comprises a front tube supporting roller group and a rear tube supporting roller group;

[0010] The tube pushing piece assembly comprises a plurality of tube pushing piece mechanisms, each tube pushing piece mechanism comprises a tube pushing piece and a lifting cylinder, and the lifting cylinder drives the tube pushing piece to lift and work;

[0011] The tube lifting cylinder;

[0012] The front tube component traction machine;

[0013] And the rear tube component traction machine;

[0014] A mandrel guide cylinder is provided at the front of the first pipe inlet and outlet of the fin tube machine, the mandrel passes through the machining center axis position of the internal machining cavity of the fin tube machine from back to front, and is arranged toward the center of the mandrel guide cylinder, a front pipe traction machine is provided at the front end of the first pipe inlet and outlet of the fin tube machine, a front pipe traction machine is provided at the front end of the front pipe traction machine, a front pipe roller group is provided, a plurality of pipe sheet mechanisms are arranged between the pipe roller interval positions of the front pipe roller group, an upper pipe slope is provided on one side of the front pipe roller group, and a lower pipe slope is provided on the other side of the front pipe roller group, and a pipe pushing cylinder is further provided at the front end of the front pipe roller group, and the pipe pushing cylinder pushes the pipe toward the front pipe traction machine;

[0015] A rear pipe tractor is arranged at the rear end of the second inlet and outlet of the fin tube machine, and the rear end of the rear pipe tractor is provided with the rear hosting roller group, and the rear area of ​​the rear hosting roller group is provided with a core rod tail end clamping and positioning mechanism.

[0016] It is further characterized by:

[0017] Two material discharge slopes are provided on the upper part of the pipe-pulling plate, which are respectively a material feed slope for the pipe to be processed and a material discharge slope for the processed pipe. The relatively high side of the material feed slope for the pipe to be processed lifts the single pipe at the pipe outlet position, so that the pipe passes over the upper convex stopper and then rolls along the material feed slope for the pipe to be processed to the relatively low side of the material feed slope for the pipe to be processed and is stopped by the back side of the material discharge slope for the processed pipe. The processed pipe located between the two groups of tube rollers of the front tube roller assembly is lifted by the relatively high side of the material discharge slope for the processed pipe, so that the pipe passes over the highest surface of the roller and rolls along the material discharge slope for the processed pipe to the rear silo.

[0018] The front end of the mandrel is provided with a slender guide head, the front end of which is located in the inner cavity of the mandrel guide cylinder to ensure that the pipe fitting is reliably fitted on the mandrel;

[0019] It also includes three groups of induction switches, namely a first induction switch, a second induction switch and a third induction switch. The first induction switch is arranged on a frame at the front end position of the bracket roller at the frontmost position of the front hosting roller group, the second induction switch is arranged on a frame at the front end position of the bracket roller at the rearmost position of the rear hosting assembly, and the third induction switch is arranged on a frame at the position where the front end tube body is located after the tube body is completely separated from the fin tube machine;

[0020] The front pipe tractor and the rear pipe tractor both include a tractor motor, a tractor belt, and a tractor opening and closing push rod arranged on both sides. The frame corresponding to the tractor belt on each side is supported on the tractor wheel group slide rail. The front pipe tractor and the rear pipe tractor clamp the pipe body and then transport it back and forth, or loosen the pipe body and allow it to move freely.

[0021] After the utility model, the pipe body is sent into the front pipe supporting roller group through the pipe poking piece assembly, and the pipe body which has been processed is unloaded from the front pipe supporting roller group into the lateral material bin, then the pipe pushing cylinder pushes the rear end of the pipe into the front pipe pulling machine, the front pipe pulling machine clamps the pipe body and pushes the pipe body backward, until the pipe body is sleeved on the outer periphery of the mandrel along the mandrel guide cylinder, then the pipe body is sequentially input to the rear pipe pulling machine, the rear pipe pulling machine also clamps the pipe body and transports the pipe body backward, until the corresponding pipe pulling machine releases the pipe, the finned tube machine starts processing the pipe and synchronously pushes the pipe forward, until the pipe is processed, the front pipe pulling machine clamps the pipe again, drives the pipe to push forward, until the pipe is separated from the mandrel, and the pipe is finally completely separated from the front pipe pulling machine under the action of inertia, the pipe poking piece assembly acts again, and the working operation is repeated; the utility model improves the production efficiency of the finned tube, reduces the labor intensity of workers, and saves labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a top view structure schematic view of the utility model;

[0023] Figure 2 It is a front view structure schematic view (the finned tube machine is partially cut away) of the utility model;

[0024] Figure 3 It is a right view structure schematic view of the finned tube machine and the pipe pushing cylinder of the utility model;

[0025] Figure 4 It is Figure 1 A local enlarged view of the A place of the utility model;

[0026] Figure 5 It is Figure 2 A local enlarged view of the B place of the utility model;

[0027] The names corresponding to the serial numbers in the drawing are as follows:

[0028] Finned tube machine 10, internal processing cavity 11, shell 12, first in-out pipe 13, second in-out pipe 14, mandrel assembly 20, mandrel 21, mandrel tail end clamping positioning mechanism 22, mandrel guide cylinder 23, elongated guide head 24, pipe poking piece assembly 30, pipe poking piece 31, lifting cylinder 32, to-be-processed pipe feeding slope 33, processed pipe discharging slope 34, pipe pushing cylinder 40, front pipe pulling machine 50, rear pipe pulling machine 60, pipe feeding slope 70, pipe discharging position 71, upper convex stop 72, pipe discharging slope 80, front pipe supporting roller group 90, pipe supporting roller 91, rear pipe supporting roller group 100, pipe poking piece mechanism 110, pipe 120;

[0029] The first induction switch 1, the second induction switch 2, the third induction switch 3, the traction motor 4, the traction motor belt 5, the traction motor opening and closing push rod 6, the traction motor wheel group sliding rail 7. DETAILED DESCRIPTION

[0030] An automatic pipe feeding and discharging device of a finned tube machine, see Figures 1-5 , comprising a finned tube machine 10, a core rod assembly 20, a pipe feeding and discharging slope, a pipe supporting roller assembly, a pipe pushing piece assembly 30, a pipe feeding cylinder 40, a front pipe pulling machine 50, and a rear pipe pulling machine 60;

[0031] The finned tube machine 10 comprises an internal machining cavity 11 and a shell 12, and the first in-out pipe opening 13 and the second in-out pipe opening 14 are arranged at the length direction ends of the internal machining cavity 11;

[0032] The core rod assembly 20 comprises a core rod 21, a core rod tail end clamping positioning mechanism 22 (which is relatively far away, and is shown by a schematic box in the figure), and a core rod guide cylinder 23;

[0033] The pipe feeding and discharging slope comprises a pipe feeding slope 70 and a pipe discharging slope 80, and the pipe feeding position 71 of the pipe feeding slope 70 is provided with an upper convex stop 72;

[0034] The pipe supporting roller assembly comprises a front pipe supporting roller group 90 and a rear pipe supporting roller group 100;

[0035] The pipe pushing piece assembly 30 comprises a plurality of pipe pushing piece mechanisms 110, each of which comprises a pipe pushing piece 31 and a lifting cylinder 32, and the lifting cylinder 32 drives the pipe pushing piece 31 to perform lifting operation;

[0036] The first in-out pipe opening 13 of the finned tube machine 10 is provided with the core rod guide cylinder 23 in front of the position, the core rod 21 penetrates through the machining center axis position of the internal machining cavity 11 of the finned tube machine 10 from the rear to the front, and is arranged towards the center of the core rod guide cylinder 23, and in the specific implementation, the front end of the core rod 21 is provided with an elongated guide head 24, the front end of the elongated guide head 24 is located in the inner cavity of the core rod guide cylinder 23, and it is ensured that the pipe can be reliably sleeved on the core rod;

[0037] The front end of the first in-out pipe opening 13 of the finned tube machine 10 is arranged with the front pipe pulling machine 50, the front end of the front pipe pulling machine 50 is provided with the front pipe supporting roller group 90, a plurality of pipe pushing piece mechanisms 110 are arranged between the pipe supporting rollers 91 of the front pipe supporting roller group 90 at interval positions, the front pipe supporting roller group 90 is provided with the pipe feeding slope 70 on one side, and the front pipe supporting roller group 90 is provided with the pipe discharging slope 80 on the other side, and the front end of the front pipe supporting roller group 90 is further provided with the pipe feeding cylinder 40, and the pipe feeding cylinder 40 pushes the pipe 120 towards the front pipe pulling machine 50;

[0038] The rear end of the second inlet and outlet pipe opening 14 of the finned tube machine 10 is arranged with a rear pipe pulling machine 60, the rear end of the rear pipe pulling machine 60 is provided with a rear pipe supporting roller assembly 100, and the rear area of the rear pipe supporting roller assembly 100 is provided with a mandrel tail end clamping positioning mechanism 22.

[0039] In specific implementation, the upper part of the pipe pushing piece 31 is provided with two unloading slopes, i.e., a to-be-processed pipe unloading slope 33 and a processed pipe unloading slope 34. The high side of the to-be-processed pipe unloading slope 33 lifts the single pipe at the pipe outlet position 71, so that the pipe 120 rolls along the to-be-processed pipe unloading slope 33 to the low side of the to-be-processed pipe unloading slope 33 after passing over the upper convex stop 72 and is stopped by the back of the processed pipe unloading slope 34. The processed pipe between the two groups of pipe supporting rollers of the front pipe supporting roller assembly 90 is lifted by the high side of the processed pipe unloading slope 34, so that the pipe 120 rolls along the processed pipe unloading slope 34 to the rear bin after passing over the highest surface of the roller.

[0040] In specific implementation, three groups of inductive switches are further included, i.e., a first inductive switch 1, a second inductive switch 2 and a third inductive switch 3. The first inductive switch 1 is arranged on the bracket body at the front end position of the bracket roller at the frontmost position of the front pipe supporting roller assembly 90. The second inductive switch 2 is arranged on the bracket body at the front end position of the bracket roller at the rearmost position of the rear pipe supporting assembly 100. The third inductive switch 3 is arranged on the bracket body at the position where the pipe body is completely separated from the finned tube machine and the front end pipe body is located.

[0041] In specific implementation, the front pipe pulling machine 50 and the rear pipe pulling machine 60 each include a pulling machine motor 4, a pulling machine belt 5 and a pulling machine opening and closing push rod 6 arranged on both sides. The bracket corresponding to the pulling machine belt 5 on each side is supported on a pulling machine wheel group sliding rail 7. The front pipe pulling machine 50 and the rear pipe pulling machine 60 clamp and then convey the pipe body 120 forward and backward, or release the pipe body and then allow it to move freely.

[0042] The working principle is as follows: the pipe body is sent into the front pipe supporting roller group through the pipe pushing piece assembly, and the pipe body that has been machined is unloaded from the front pipe supporting roller group into the lateral bin, the pipe body falls on the front pipe supporting roller group, the first induction switch senses the pipe body, the PLC control system sends a pipe sending instruction, the horizontally arranged pipe lifting cylinder extends to lift the pipe body into the front pipe pulling machine, the pipe lifting cylinder retracts, the first induction switch does not sense the pipe body, when the pipe head of the pipe body touches the second induction switch, the pipe body is sent to the specified position, the rear pipe pulling machine is immediately loosened, the PLC sends a finned tube machine starting signal, the finned tube machine performs machining work on the pipe body, while the finned tube machine works, the heat exchange pipe is continuously machined, and the finned tube machine drives the heat exchange pipe to retreat, when machining reaches the specified position, the front end of the pipe body touches the third induction switch, a finned tube machine completion signal is sent, the finned tube machine stops machining, the front pipe pulling machine starts to pull the heat exchange pipe out of the finned tube machine, since the pipe body has certain inertia, the pipe body can be separated from the front pipe pulling machine, and after the front end of the pipe body touches the first induction switch, the PLC sends a lifting cylinder work signal of the pipe pushing piece, the pipe pushing piece lifts the machined pipe body and the pipe body that needs to be machined in the next cycle at the same time, due to the action of gravity, the machined pipe body falls into the lateral bin through the machined pipe unloading slope, and the pipe body that needs to be machined in the next cycle falls into the middle of the pipe pushing piece, the lifting cylinder descends, and the pipe body is sent to the front pipe supporting roller group, and thus a new cycle of action starts.

[0043] It is apparent for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-restrictive in any respect, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. An automatic tube loading and unloading device for a fin tube machine, characterized in that: It includes: The fin tube machine comprises an internal processing cavity and an outer shell, wherein a first inlet and outlet pipe opening and a second inlet and outlet pipe opening are provided at both ends of the internal processing cavity in the longitudinal direction; A mandrel assembly comprising a mandrel, a mandrel tail end clamping and positioning mechanism, and a mandrel guide cylinder; The upper tube and lower tube slopes include an upper tube slope and a lower tube slope, wherein an upper convex stopper is provided at the outlet position of the upper tube slope; A managed roller assembly, comprising a front managed roller group and a rear managed roller group; The pipe-pulling plate assembly includes a plurality of pipe-pulling plate mechanisms, each of which includes a pipe-pulling plate and a lifting cylinder, wherein the lifting cylinder drives the pipe-pulling plate to move up and down; Pipe jacking cylinder; Front pipe traction machine; and rear pipe traction machine; A mandrel guide cylinder is provided at the front of the first pipe inlet and outlet of the fin tube machine, the mandrel passes through the machining center axis position of the internal machining cavity of the fin tube machine from back to front, and is arranged toward the center of the mandrel guide cylinder, a front pipe traction machine is provided at the front end of the first pipe inlet and outlet of the fin tube machine, a front pipe traction machine is provided at the front end of the front pipe traction machine, a front pipe roller group is provided, a plurality of pipe sheet mechanisms are arranged between the pipe roller interval positions of the front pipe roller group, an upper pipe slope is provided on one side of the front pipe roller group, and a lower pipe slope is provided on the other side of the front pipe roller group, and a pipe pushing cylinder is further provided at the front end of the front pipe roller group, and the pipe pushing cylinder pushes the pipe toward the front pipe traction machine; A rear pipe tractor is arranged at the rear end of the second inlet and outlet of the fin tube machine, and the rear end of the rear pipe tractor is provided with the rear hosting roller group, and the rear area of ​​the rear hosting roller group is provided with a core rod tail end clamping and positioning mechanism.

2. The automatic tube loading and unloading device of the fin tube machine according to claim 1, characterized in that: Two material discharge slopes are provided on the upper part of the pipe-pulling plate, which are respectively a loading slope for the pipe to be processed and a loading slope for the processed pipe. The relatively high side of the loading slope for the pipe to be processed lifts the single pipe at the pipe outlet position, so that the pipe passes over the upper convex stopper and rolls along the loading slope for the pipe to be processed to the relatively low side of the loading slope for the pipe to be processed, and is stopped by the back side of the loading slope for the processed pipe. The processed pipe between the two groups of hosting rollers of the front hosting roller assembly is lifted by the relatively high side of the loading slope for the processed pipe, so that the pipe passes over the highest surface of the roller and rolls along the loading slope for the processed pipe to the rear silo.

3. The automatic tube loading and unloading device of the fin tube machine according to claim 1 is characterized in that: The front end of the core rod is provided with a slender guide head, and the front end of the slender guide head is located in the inner cavity of the core rod guide cylinder.

4. The automatic tube loading and unloading device of the fin tube machine according to claim 1 is characterized in that: It also includes three groups of induction switches, namely a first induction switch, a second induction switch, and a third induction switch. The first induction switch is arranged on the frame at the front end position of the bracket roller at the frontmost position of the front hosting roller group, the second induction switch is arranged on the frame at the front end position of the bracket roller at the rearmost position of the rear hosting assembly, and the third induction switch is arranged on the frame at the position of the front end tube body after the tube body is completely separated from the fin tube machine.

5. The automatic tube loading and unloading device of the fin tube machine according to claim 1 is characterized in that: The front pipe tractor and the rear pipe tractor both include a tractor motor, a tractor belt, and a tractor opening and closing push rod arranged on both sides. The frame corresponding to the tractor belt on each side is supported on the tractor wheel group slide rail. The front pipe tractor and the rear pipe tractor clamp the pipe body and then transport it back and forth, or loosen the pipe body and allow it to move freely.

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