Lubricating mechanism of pipe bending machine
By setting oil inlets, lubrication channels and oil injection ports on the support mold of the pipe bending machine, the oil injection port is located at the bend tangent point of the bending mold, the precise use of lubricant oil in the pipe bending machine is achieved, the problem of lubricant residue is solved, the degreasing time is shortened, and environmental pollution and energy consumption are reduced.
Patent Information
- Application Number
- CN202421775557.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The lubrication method used by existing pipe bending machines in the copper pipe bending process causes lubricating oil to remain in the inner wall of the copper pipe, requiring additional heating and degreasing processes to affect the environment and energy conservation and emission reduction.
A lubrication mechanism of a pipe bending machine is designed, including setting an oil inlet, lubrication channel and oil injection port on the support mold. The oil injection port is located at the bend tilt point of the bend mold, and the lubricating oil is accurately sprayed so that it can only be used in the bend.
By accurately spraying lubricant, the amount of lubricant is reduced, the degreasing time is shortened, and the pollution to the environment and energy consumption is reduced.
Smart Images
Figure CN222856504U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lubrication mechanism of a pipe bending machine. Background Art
[0002] In the existing air conditioner industry, when bending copper tubes, the head of the mandrel inserted into the copper tube must first be lubricated at the bending part of the copper tube to reduce the friction between the copper tube and the mandrel during the bending process and prevent the copper tube from being scratched and worn. At present, lubrication is sprayed through the mandrel connecting rod. The output oil pipe of the oil supply device is connected to one end of the mandrel connecting rod. The mandrel is hollow, and the lubricating oil is sprayed out from the mandrel head through the hollow part. After the copper tube is delivered to the right place and before the tube is bent, the mandrel is already in the copper tube. At this time, the oil is sprayed once. Most of the lubricating oil sprayed in this lubrication method remains on the inner wall of the copper tube. In order to remove the residual lubricating oil in the copper tube, it is necessary to add a degreasing process that heats the tube to volatilize the lubricating oil, which is not very friendly to environmental pollution and energy conservation and emission reduction. Summary of the invention
[0003] The technical problem to be solved by the utility model is to overcome the above-mentioned defects of the prior art and provide a lubrication mechanism for a pipe bending machine, which can reduce the amount of lubrication oil used.
[0004] The technical solution adopted by the utility model to solve the above technical problems is:
[0005] A lubrication mechanism for a pipe bending machine comprises an oil inlet, a lubrication channel and an oil spray port arranged on a support die, wherein the lubrication channel connects the oil inlet and the oil spray port, and the oil spray port is aligned with a core shaft head at a bending part of the bending die.
[0006] Preferably, the oil injection port is located at the bending tangent point of the bending die, so that the oil can be sprayed more accurately onto the mandrel head, so that a lubricating effect can be achieved with a smaller amount of oil injection.
[0007] Preferably, the lubrication channel includes a central channel and an oblique channel, the central channel and the oblique channel are connected, the outer end of the central channel is connected to the oil inlet, and the oblique channel is connected to the oil injection port, which facilitates the preparation of the lubrication channel.
[0008] Compared with the prior art, the utility model has the advantages that: by arranging an oil spray port connected to the output oil pipe of the oil supply device on the support die, the lubricating oil is sprayed out from the oil spray port through the lubrication channel. In particular, the oil spray port is arranged at the bending tangent point, so that the oil spray position of the core shaft is more precise, the amount of oil is more economical, and the degreasing time is shortened due to the small amount of lubricating oil entering the pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic structural diagram of a lubrication mechanism of a pipe bender in an embodiment of the utility model when pipe bending is completed. DETAILED DESCRIPTION
[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0011] like Figure 1 As shown, a pipe bending machine includes a clamping die 1, a bending die 2, a supporting die 3 and a lubricating mechanism.
[0012] The lubricating mechanism comprises an oil inlet 301, a lubricating channel and an oil spray port 304 arranged on the support die 3. The lubricating channel connects the oil inlet 301 and the oil spray port 304. The oil spray port 304 is aligned with the mandrel head at the bending part of the bending die.
[0013] Optimally, the oil injection port 304 is located at the bending tangent point of the bending die of the pipe bending machine.
[0014] The lubrication channel includes a central channel 302 and an oblique channel 303 . The central channel 302 and the oblique channel 303 are communicated with each other. The outer end of the central channel 302 is communicated with the oil inlet 301 , and the oblique channel 303 is communicated with the oil injection port 304 .
[0015] The output oil pipe 5 of the oil supply device is connected to the oil inlet 301. Before bending the pipe, when the pipe fitting 4 has not yet been delivered to the bending intersection, the oil supply device supplies oil, and the lubricating oil is output to the oil inlet 301 through the output oil pipe 5, and is sprayed out from the oil injection port 304 through the central channel 302 and the oblique channel 303, which lubricates both the support mold located at the bending intersection and the head of the core shaft 7 located at the bending intersection. Less lubricating oil enters the pipe fitting, thereby shortening the degreasing time. At the same time, since the oil injection port is located at the bending intersection, the oil injection position is accurate and will not be sprayed everywhere.
Claims
1. A lubrication mechanism for a pipe bending machine, characterized by: The invention comprises an oil inlet, a lubrication channel and an oil spray port arranged on the supporting die, wherein the lubrication channel connects the oil inlet and the oil spray port, and the oil spray port is aligned with the core shaft head at the bending part of the bending die.
2. The lubrication mechanism of the pipe bender according to claim 1, characterized in that: The oil injection port is located at the bending tangent point of the bending die.
3. The lubrication mechanism of the pipe bender according to claim 1, characterized in that: The lubrication channel comprises a central channel and an oblique channel, the central channel and the oblique channel are communicated with each other, the outer end of the central channel is communicated with the oil inlet, and the oblique channel is communicated with the oil injection port.