Air conditioner pipe joint marking mechanism

By designing a marking mechanism for air conditioning pipe joints and using mechanized control of marking position and depth, the shortcomings of manual marking are solved, achieving efficient and accurate marking results that meet the requirements of large-scale and precision requirements of modern industrial production.

CN224465528UActive Publication Date: 2026-07-07QINGDAO TONGTAI REFRIGERATION PRECISION FITTINGS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO TONGTAI REFRIGERATION PRECISION FITTINGS CO LTD
Filing Date
2025-09-08
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In the current production of air conditioning pipe joints, the manual marking method has problems such as difficulty in fixing the marking position, uncontrollable marking depth, and high labor intensity, which cannot meet the precision, consistency and efficiency requirements of modern industrial production.

Method used

An air conditioning pipe joint marking mechanism was designed, including a profile traction unit, a length limiting unit, a marking unit, and a limiting block. The marking position and depth are precisely controlled through mechanization, and continuous operation is achieved by combining automatic cutting and sorting.

Benefits of technology

It achieves precise control over the marking position and depth, improves the consistency of marking quality, reduces labor intensity, supports continuous batch processing, improves production efficiency, and meets the needs of modern industrial large-scale and high-precision production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air conditioner pipeline joint marking mechanism relates to air conditioner pipeline joint production technical field. An air conditioner pipeline joint marking mechanism includes: work bench, section bar traction unit, fixed length limiting unit, marking unit and spacing block. The utility model can accurate control air conditioner pipeline joint roughcast's marking position and depth, avoid the position deviation and the depth uneven problem caused by manual operation, and the marking quality consistency is improved obviously, realizes the coherent operation from section bar processing to marking, blanking, does not need manual marking, and the labor intensity of staff is reduced greatly, supports continuous batch processing, and need not frequently start and stop equipment, reduces the equipment loss, and combines automatic cutting and classified blanking, and the production efficiency is improved obviously, satisfies modern industrial scale, high -precision production demand.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioning pipe joint production technology, specifically to an air conditioning pipe joint marking mechanism. Background Technology

[0002] In the manufacturing process of air conditioning duct joints, a 6-meter-long strip profile is first used as raw material. It is then cut into a set length section that meets the size requirements of the joint blank using a cutting saw. The cut blank is then further processed to form the final air conditioning duct joint product.

[0003] In the aforementioned production process, to facilitate identification of subsequent processing steps, differentiation of product specifications, or quality traceability, it is usually necessary to mark specific information on the cut joint blanks, such as product model, specifications, and production batch. Currently, the industry generally uses manual marking for this joint blank operation. That is, after the cutting saw cuts the 6-meter-long profile into blanks of a set length, the worker manually marks the surface of the blank with a marking tool (such as a steel stamp or marker).

[0004] However, this traditional manual marking method has obvious technical defects and shortcomings, specifically in the following aspects:

[0005] First, the marking position is difficult to fix; due to the lack of a unified and accurate positioning benchmark during the manual marking process, the staff rely entirely on experience to judge the marking position, resulting in a large deviation in the marking position on different blanks.

[0006] Second, the marking depth is uncontrollable; the blanks for air conditioning pipe joints are mostly made of brass, which has low hardness and soft texture. When marking manually, the marking force depends entirely on the force exerted by the worker's hand, and it is difficult to accurately control the force, which leads to significant differences in the marking depth.

[0007] Third, the labor intensity of the staff is high; in the case of mass production, a large number of cut blanks need to be manually marked one by one. This process is highly repetitive and cumbersome, which is not conducive to achieving the production needs of large scale and high efficiency.

[0008] Therefore, the manual marking method currently used in the production of air conditioning pipe joint blanks can no longer meet the requirements of modern industrial production for marking accuracy, consistency and production efficiency. There is an urgent need for a marking solution that can solve the above-mentioned technical pain points. The above technical problems are the technical problems that general technicians in this field need to solve.

[0009] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0010] To address the aforementioned technical problems, this utility model provides a marking mechanism for air conditioning pipe joints, thereby resolving the issues raised in the background section.

[0011] This utility model provides the following technical solution: a marking mechanism for air conditioning pipe joints, comprising: a workbench, a profile traction unit, a length limiting unit, a marking unit, and a limiting block;

[0012] The profile traction unit includes a fixed frame and multiple sets of traction wheels. The fixed frame is fixed on the workbench, and the multiple sets of traction wheels rotate at intervals on the fixed frame and are all driven by a motor. Each set of traction wheels includes an upper traction wheel and a lower traction wheel arranged vertically.

[0013] The length limiting unit includes a fixed plate and a positioning table. The fixed plate is fixed on the worktable and located on one side of the material feeding direction of the profile traction unit. The positioning table is fixed on the fixed plate, and the axis of the positioning table coincides with the axis of the traction profile.

[0014] The marking unit is located near the positioning table and on one side of the traction profile. The marking unit includes a marking cylinder and a steel stamp block, with the steel stamp block fixed to the drive end of the marking cylinder.

[0015] The limiting block is fixed on the worktable near the positioning table, and the limiting block is located on the other side of the pulled profile. The limiting block is set opposite to the marking unit.

[0016] Preferably, it also includes a profile positioning unit; the profile positioning unit includes a positioning seat, a clamping block and a positioning cylinder;

[0017] The positioning seat is fixed on the worktable and is spaced apart from the marking cylinder; one side of the clamping block is hinged to the top of the positioning seat; the other side of the clamping block covers the top of the pulled profile.

[0018] The positioning cylinder is fixed on the worktable and located below the clamping block; the drive end of the positioning cylinder is hinged to the bottom of the clamping block.

[0019] Preferably, a machine box is fixed at the bottom of the workbench; a first material discharge port and a second material discharge port are respectively provided on both sides of the fixed plate on the workbench; a material discharge bin corresponding to the positions of the first and second material discharge ports is provided inside the machine box.

[0020] Preferably, a profile prepositioning plate is provided on one side of the fixing frame, and a prepositioning hole is provided on the profile prepositioning plate; the center position of the prepositioning hole is at the same height as the axis of the pulled profile.

[0021] The marking mechanism for air conditioning pipe joints provided in this embodiment of the invention has the following beneficial effects: This invention can accurately control the marking position and depth of the air conditioning pipe joint blank, avoiding the problems of position deviation and uneven depth caused by manual operation, and significantly improving the consistency of marking quality; it realizes a continuous operation from profile processing to marking and blanking, eliminating the need for manual marking and greatly reducing the labor intensity of workers; it supports continuous batch processing, eliminating the need for frequent equipment start-ups and shutdowns, reducing equipment wear and tear, and, combined with automatic cutting and sorting blanking, significantly improving production efficiency and meeting the needs of modern industrial large-scale and high-precision production. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the present invention from the first angle;

[0023] Figure 2 This is a structural schematic diagram of the present invention from a second angle;

[0024] Figure 3 This is a structural schematic diagram of the present invention from a third angle;

[0025] Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0026] Figure 5 This utility model Figure 2 A magnified schematic diagram of part B. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] See Figures 1-5 To address the problems mentioned in the background section, this utility model provides a marking mechanism for air conditioning pipe joints to solve the aforementioned technical problems. The technical solution is as follows:

[0029] A marking mechanism for air conditioning pipe joints includes: a workbench 111, a profile traction unit, a length limiting unit, a marking unit, and a limiting block 140;

[0030] The profile traction unit includes a fixed frame 121 and multiple sets of traction wheels. The fixed frame 121 is fixed on the workbench 111. The multiple sets of traction wheels rotate at intervals on the fixed frame 121, and each set of traction wheels is driven by a motor. Each set of traction wheels includes an upper traction wheel 122 and a lower traction wheel 123 arranged vertically.

[0031] The fixed length limiting unit includes a fixed plate 131 and a positioning table 132. The fixed plate 131 is vertically fixed on the worktable 111 and is located on one side of the material feeding direction of the profile traction unit. The positioning table 132 is fixed on the fixed plate 131 and the axis of the positioning table 132 coincides with the axis of the traction profile 200.

[0032] The marking unit is located near the positioning table 132 and on one side of the pulled profile 200. The marking unit includes a marking cylinder 151 and a steel stamp block. The steel stamp block is fixed to the drive end of the marking cylinder 151.

[0033] The limiting block 140 is fixed on the worktable 111 near the positioning table 132, and the limiting block 140 is located on the other side of the pulled profile 200. The limiting block 140 is set opposite to the marking unit.

[0034] In this embodiment, a profile positioning unit is also included; the profile positioning unit includes a positioning seat 163, a clamping block 161, and a positioning cylinder 162;

[0035] The positioning seat 163 is fixed on the workbench 111 and is arranged adjacent to and spaced apart from the marking cylinder 151;

[0036] One side of the clamping block 161 is hinged to the top of the positioning seat 163; the other side of the clamping block 161 covers the top of the pulled profile 200;

[0037] The positioning cylinder 162 is fixed on the worktable 111 and located below the clamping block 161; the drive end of the positioning cylinder 162 is hinged to the bottom of the clamping block 161.

[0038] It should be noted that the purpose of setting up the profile positioning unit is to further position the profile 200 before marking and to improve the stability of the marking of the profile 200.

[0039] In this embodiment, a housing 110 is fixed at the bottom of the workbench 111; a first discharge port 181 and a second discharge port 182 are respectively provided on both sides of the fixed plate 131 on the workbench 111; a discharge bin corresponding to the positions of the first discharge port 181 and the second discharge port 182 is provided inside the housing 110.

[0040] In this embodiment, a profile prepositioning plate 170 is provided on one side of the fixing frame 121, and a prepositioning hole is provided on the profile prepositioning plate 170; the center position of the prepositioning hole is at the same height as the axis of the pulled profile 200.

[0041] The detailed working method of the air conditioning pipe joint marking mechanism provided in this embodiment of the utility model is as follows:

[0042] (1) According to the set length of the air conditioning pipe joint blank (such as 100mm, 150mm, etc.), the position of the cutting saw above the marking mechanism is reasonably adjusted (the cutting saw is existing technology and will not be described here); wherein, the distance between the saw blade axis of the cutting saw and the end face of the positioning table 132 is equal to the set length of the blank. Normally, the cutting saw is located in the preset area between the marking cylinder 151 and the positioning seat 163.

[0043] (2) Pass one end of the 6-meter-long brass profile 200 through the pre-positioning hole of the profile pre-positioning plate 170, so that the end of the profile is initially aligned with the gap between the upper traction wheel 122 and the lower traction wheel 123 of the profile traction unit, and the loading preparation is completed.

[0044] (3) Start the motor of the profile traction unit. The motor drives multiple sets of traction wheels to rotate synchronously through the transmission component (the upper traction wheel 122 rotates clockwise and the lower traction wheel 123 rotates counterclockwise). Utilize the friction between the upper and lower traction wheels and the surface of the profile 200 to drive the profile 200 to be transported to one side of the fixed length limiting unit along the direction defined by the pre-positioning hole.

[0045] (4) When the front end of the profile 200 abuts against the end face of the positioning table 132, the positioning table 132 prevents the profile from moving further by mechanical limiting. At this time, the section of the profile 200 to be cut and marked has been accurately positioned - the distance between the cutting saw and the end face of the positioning table 132 is the blank set length, and the relative position of the marking unit and the cutting saw also meets the process requirement of "marking first and then cutting".

[0046] (5) The driving end of the positioning cylinder 162 of the profile positioning unit extends upward. Since the driving end of the positioning cylinder 162 is hinged to the bottom of the pressing block 161 and one side of the pressing block 161 is hinged to the top of the positioning seat 163, the thrust of the positioning cylinder 162 drives the pressing block 161 to rotate around the hinge point, so that the side of the pressing block 161 away from the positioning seat 163 is pressed down on the profile 200. This, together with the worktable 111 below, achieves vertical fixation of the profile 200 and prevents the profile from shifting during marking.

[0047] (6) After the profile is pressed, the driving end of the marking cylinder 151 of the marking unit extends quickly, driving the steel stamp block to impact the surface of the profile 200. Since the limiting block 140 is located on the other side of the profile 200 and is opposite to the marking unit, it can offset the impact reaction force of the marking cylinder, ensuring that the steel stamp block imprints a mark of uniform depth on the surface of the brass profile. After the marking is completed, the driving end of the marking cylinder 151 immediately resets, the steel stamp block is removed from the surface of the profile, and then the driving end of the positioning cylinder 162 retracts, the pressing block 161 flips upward to reset, and the pressing on the profile 200 is released.

[0048] (7) After the marking unit and the profile positioning unit are reset, the cutting saw starts the cutting action - the saw blade rotates at high speed and moves towards the profile 200, cutting the marked profile section into a joint blank of a set length along the preset cutting position; after the cutting is completed, the cutting saw immediately resets to the initial position and waits for the next cutting command.

[0049] (8) The cut joint blanks are fed into the blanking bin through the corresponding blanking port; if the length of the cut blank is short, the blank can be pushed into the blanking port 181 by manual assistance or by the pusher assembly of the equipment.

[0050] The marking mechanism for air conditioning pipe joints provided in this embodiment of the invention has the following beneficial effects: This invention can accurately control the marking position and depth of the air conditioning pipe joint blank, avoiding the problems of position deviation and uneven depth caused by manual operation, and significantly improving the consistency of marking quality; it realizes a continuous operation from profile processing to marking and blanking, eliminating the need for manual marking and greatly reducing the labor intensity of workers; it supports continuous batch processing, eliminating the need for frequent equipment start-ups and shutdowns, reducing equipment wear and tear, and, combined with automatic cutting and sorting blanking, significantly improving production efficiency and meeting the needs of modern industrial large-scale and high-precision production.

[0051] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A marking mechanism for air conditioning pipe joints, characterized in that, include: Workbench, profile traction unit, length limiting unit, marking unit, and limit block; The profile traction unit includes a fixed frame and multiple sets of traction wheels. The fixed frame is fixed on the workbench, and the multiple sets of traction wheels rotate at intervals on the fixed frame and are all driven by a motor. Each set of traction wheels includes an upper traction wheel and a lower traction wheel arranged vertically. The fixed length limiting unit includes a fixed plate and a positioning table. The fixed plate is fixed on the worktable and located on one side of the material feeding direction of the profile traction unit. The positioning table is fixed on the fixed plate, and the axis of the positioning table coincides with the axis of the traction profile. The marking unit is located near the positioning table and on one side of the traction profile. The marking unit includes a marking cylinder and a steel stamp block, with the steel stamp block fixed to the drive end of the marking cylinder. The limiting block is fixed on the worktable near the positioning table, and the limiting block is located on the other side of the pulled profile. The limiting block is set opposite to the marking unit.

2. The air conditioning pipe joint marking mechanism according to claim 1, characterized in that, It also includes a profile positioning unit; the profile positioning unit includes a positioning seat, a clamping block and a positioning cylinder; The positioning seat is fixed on the worktable and is spaced apart from the marking cylinder; one side of the clamping block is hinged to the top of the positioning seat; the other side of the clamping block covers the top of the pulled profile. The positioning cylinder is fixed on the worktable and located below the clamping block; the drive end of the positioning cylinder is hinged to the bottom of the clamping block.

3. The air conditioning pipe joint marking mechanism according to claim 1, characterized in that, The bottom of the workbench is fixed with a machine box; on the workbench, there are two material discharge ports on both sides of the fixed plate; inside the machine box, there are material discharge bins corresponding to the positions of material discharge ports one and two.

4. The air conditioning pipe joint marking mechanism according to claim 1, characterized in that, A profile pre-positioning plate is provided on one side of the fixing frame, and a pre-positioning hole is provided on the profile pre-positioning plate; the center position of the pre-positioning hole is at the same height as the axis of the pulled profile.