Rapid detection device for injection molding machine heater
By designing a rapid detection device including a leakage current detection box, a leakage current tester, a connecting wire, a conductive contact assembly, a rechargeable battery and an inverter, the problem of inconvenient leakage current detection of the injection molding machine heating ring is solved, and the rapid and convenient leakage current detection is achieved, which improves detection efficiency and reduces safety hazards.
Patent Information
- Application Number
- CN202421934044.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The leakage current detection process of the heating ring of the existing injection molding machine is inconvenient, resulting in slow detection speed, affecting detection efficiency and posing safety hazards.
A rapid detection device including a leakage current detection box, a leakage current tester, a connecting wire, a conductive contact assembly, a rechargeable battery and an inverter is designed. It moves to the detection position using a self-locking universal wheel, is connected to the heating ring through a conductive contact assembly, and uses a rechargeable battery and an inverter to provide power for rapid leakage current testing.
It realizes fast and convenient leakage current detection of the heating ring of the injection molding machine, improves detection efficiency and reduces safety hazards.
Smart Images
Figure CN223155208U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of leakage current testing, and particularly to a rapid detection device for an injection molding machine heater. Background Art
[0002] Leakage current testing is usually used to evaluate the insulation performance and safety of equipment. Under normal operating conditions, the current of the equipment should only flow in a predetermined conductive path. However, due to the influence of insulation aging, damage or environmental factors, a small amount of current may flow through an undesired path, and this phenomenon is called leakage current. In the plastic processing industry, the heating section of plastic molding equipment usually needs to be heated by a heater. For example, in an injection molding machine, a circular heater is used to heat the screw barrel so that the plastic particles inside it melt. The heating coil of the injection molding machine generally uses heating methods such as electric heating wires, electromagnetic induction coils, and infrared heating, all of which require current to pass through and then convert electrical energy into heat energy. Therefore, an insulating and heat-conducting material needs to be set on the heating coil barrel to avoid current leakage. However, with the long-term use of the heater and the influence of a harsh working environment, its insulation performance may gradually decline, and even leakage current may occur. Leakage current not only affects the heating effect of the heating coil but also may pose a safety hazard to operators and equipment. Therefore, it is necessary to regularly detect the leakage current of the injection molding machine heating coil. The existing method for detecting the leakage current of the heating coil requires moving the leakage current tester to the working area of the injection molding machine and connecting the heating coil on the injection molding machine screw barrel to the leakage current tester through a connecting wire for leakage current testing. Moreover, the leakage current tester also needs to be connected to a 220V power supply. This leakage current detection process is relatively inconvenient and reduces the detection speed. Summary of the Utility Model
[0003] Aiming at the deficiencies existing in the prior art, the purpose of this application is to provide a rapid detection device for an injection molding machine heater to solve the problems raised in the above background art.
[0004] According to one aspect of the present application, a rapid detection device for an injection molding machine heater includes a leakage current detection box, a leakage current tester, connecting wires, a conductive contact assembly, a rechargeable battery, and an inverter. A partition is horizontally and fixedly arranged in the upper part of the leakage current detection box. The leakage current tester is installed on the partition. Inside the leakage current detection box below the partition, a rechargeable battery and an inverter are installed. The rechargeable battery is electrically connected to the inverter, and the inverter is electrically connected to the leakage current tester. A switch button is arranged on the partition, and the switch button controls the switches of the rechargeable battery and the inverter. The top of the leakage current detection box is rotatably connected with a box cover. The box cover is of a deep groove structure. Two groups of conductive contact assemblies are fixedly arranged at the bottom of the deep groove of the box cover through clamping members. Hanging posts are fixedly arranged on both side walls of the deep groove of the box cover, and the coiled connecting wires are hung on the hanging posts.
[0005] Preferably, the conductive contact assembly includes a first L-shaped conductive plate and a second L-shaped conductive plate. A first connecting plate is vertically fixed at the end of the short side plate of the first L-shaped conductive plate, and a through hole is formed through the first connecting plate. A second connecting plate is vertically fixed at the end of the short side plate of the second L-shaped conductive plate, and a conductive threaded rod is fixed on the second connecting plate. A nut is threadedly connected to the conductive threaded rod. The length direction of the conductive threaded rod is consistent with the length direction of the short side plate of the second L-shaped conductive plate. The second L-shaped conductive plate and the first L-shaped conductive plate form a square arch structure by passing the conductive threaded rod through the through hole and screwing on the nut.
[0006] Preferably, the clamping member includes two symmetrically arranged elastic clips. The elastic clips are fixedly arranged on the box cover, and the short side plates and long side plates of the first L-shaped conductive plate and the second L-shaped conductive plate are clamped and fixedly arranged in the box cover through the two symmetrically arranged elastic clips.
[0007] Preferably, the clamping member includes two symmetrically arranged elastic clips. The elastic clips are fixedly arranged on the box cover, and the short side plates and long side plates of the first L-shaped conductive plate and the second L-shaped conductive plate are clamped and fixedly arranged in the box cover through the two symmetrically arranged elastic clips.
[0008] Preferably, self-locking universal wheels are installed at the four corners of the bottom of the leakage current detection box.
[0009] Preferably, maintenance openings are formed through both outer side walls of the leakage current detection box, and maintenance doors are installed at the maintenance openings through screws.
[0010] Preferably, one end of the connecting wire is provided with an alligator clip head, and the other end of the connecting wire is provided with a round head pin.
[0011] The advantages of this application compared with the prior art are as follows: For a rapid detection device for an injection molding machine heater in this application, when performing a leakage current test on the heating coil on the injection molding machine screw barrel, move the leakage current detection box to the working area of the injection molding machine through the self-locking universal wheels provided at its bottom and place it within the range convenient for detection, open the box cover, then remove the first L-shaped conductive plates and the second L-shaped conductive plates of the two groups of conductive contact components from the clamping parts in the box cover, and respectively pass the second L-shaped conductive plates and the first L-shaped conductive plates of each group through the through holes with conductive threaded rods and screw on nuts to form a square arch structure and respectively clamp them at both ends of the outer side wall of the heating coil. Then, remove the two coiled connecting wires from the hanging posts, connect the round pin needles at one end of the two connecting wires to the leakage current tester, clamp the alligator clips at the other end of the two connecting wires to the two groups of conductive contact components respectively, then press the switch button to start the rechargeable battery and the inverter to provide 220V power for the leakage current tester, and then start the leakage current tester to perform a leakage current test on the heating coil. After the detection is completed, remove the two groups of conductive contact components and install them on another heating coil to perform a leakage current test until the leakage current detection of all heating coils is completed, and during the detection process, it can be moved through the self-locking universal wheels provided at the bottom of the leakage current detection box, so as to facilitate the leakage current detection of all heating coils, thereby enabling this device to rapidly detect the leakage current of the heating coils on the injection molding machine screw barrel. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 FIG. 6 is a perspective view of a rapid detection device for an injection molding machine heater according to an embodiment of the present application.
[0013] Figure 2 FIG. 10 is a top view structure diagram inside the box cover of a rapid detection device for an injection molding machine heater according to an embodiment of the present application.
[0014] Figure 3 FIG. 14 is a perspective view of the box cover of a rapid detection device for an injection molding machine heater according to an embodiment of the present application.
[0015] Figure 4 FIG. 18 is a perspective view of the split repair door of a rapid detection device for an injection molding machine heater according to an embodiment of the present application.
[0016] Figure 5 FIG. 22 is a perspective schematic diagram during the leakage current test of a rapid detection device for an injection molding machine heater according to an embodiment of the present application.
[0017] Figure 6 FIG. Figure 5 28 is an enlarged structure diagram of part A in FIG.
[0018] Reference numerals: 1, leakage current detection box; 2, leakage current tester; 3, connecting wire; 4, conductive contact assembly; 41, first L-shaped conductive plate; 42, second L-shaped conductive plate; 43, first connecting plate; 44, through hole; 45, second connecting plate; 46, conductive threaded rod; 47, nut; 5, rechargeable battery; 6, inverter; 7, partition; 8, switch button; 9, box cover; 10, clamping member; 101, elastic clip; 11, hanging post; 12, limiting plate; 13, self-locking universal wheel; 14, maintenance port; 15, maintenance door; 16, heating coil. Detailed implementation manners
[0019] In order to make the content of this application easier to be clearly understood, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the Figure 4 accompanying drawings, and the words "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0020] As Figures 1 to 6As shown in the figure, a rapid detection device for an injection molding machine heater includes a leakage current detection box 1, a leakage current tester 2, a connecting wire 3, a conductive contact assembly 4, a rechargeable battery 5, and an inverter 6. A partition 7 is horizontally and fixedly arranged at the upper part inside the leakage current detection box 1. The leakage current tester 2 is installed on the partition 7. The rechargeable battery 5 and the inverter 6 are installed inside the leakage current detection box 1 below the partition 7. Self-locking universal wheels 13 are installed at the four corners of the bottom of the leakage current detection box 1, so as to facilitate the movement of the device and be able to self-lock to keep the device stable. The rechargeable battery 5 is electrically connected to the inverter 6. The inverter 6 converts the DC power of the rechargeable battery 5 into 220V AC power to provide electrical energy for the leakage current tester. The inverter 6 is electrically connected to the leakage current tester 2. A switch button 8 is arranged on the partition 7, and the switch button 8 controls the switches of the rechargeable battery 5 and the inverter 6. The top of the leakage current detection box 1 is rotatably connected with a box cover 9. The box cover 9 is of a deep groove structure. Two groups of conductive contact assemblies 4 are fixedly arranged at the bottom of the deep groove of the box cover 9 through clamping members 10. Specifically, the conductive contact assembly 4 includes a first L-shaped conductive plate 41 and a second L-shaped conductive plate 42. A connecting plate 43 is vertically fixed at the end of the short side plate of the first L-shaped conductive plate 41. A through hole 44 is penetrated through the connecting plate 43. A connecting plate 45 is vertically fixed at the end of the short side plate of the second L-shaped conductive plate 42. A conductive threaded rod 46 is fixed on the connecting plate 45. A nut 47 is threadedly connected to the conductive threaded rod 46. The length direction of the conductive threaded rod 46 is consistent with the length direction of the short side plate of the second L-shaped conductive plate 42. The second L-shaped conductive plate 42 and the first L-shaped conductive plate 41 form a square arch structure by passing the conductive threaded rod 46 through the through hole 44 and screwing on the nut 47, so as to be clamped on the heating coil 16 on the injection molding machine screw barrel. In addition, the clamping member 10 includes two symmetrically arranged elastic clips 101. The elastic clips 101 are fixedly arranged on the box cover 9, and the short side plates and long side plates of the first L-shaped conductive plate 41 and the second L-shaped conductive plate 42 are clamped and fixedly arranged inside the box cover 9 through two symmetrically arranged elastic clips 101, that is, the short side plates and long side plates of the first L-shaped conductive plate 41 and the second L-shaped conductive plate 42 are clamped between the two elastic clips 101. Hanging posts 11 are fixedly arranged on both side walls of the deep groove of the box cover 9. A limiting plate 12 is fixedly arranged at the end of the hanging post 11. The limiting plate 12 is of an oval structure. A coiled connecting wire 3 is hung on the hanging post 11. One end of the connecting wire 3 is provided with an alligator clip head, and the other end of the connecting wire 3 is provided with a round head pin. The major axis dimension of the limiting plate 12 is greater than the outer diameter dimension of the coiled connecting wire 3, so as to be able to fix the coiled connecting wire 3. Inspection openings 14 are penetrated through the two outer side walls of the leakage current detection box 1. Inspection doors 15 are installed at the inspection openings 14 through screws. This setting facilitates the regular inspection of the rechargeable battery 5 and the inverter 6.
[0021] Working principle: When performing a leakage current test on the heating coil 16 on the screw barrel of an injection molding machine, move the leakage current detection box 1 to the working area of the injection molding machine through the self-locking universal wheels 13 provided at its bottom and place it within a range convenient for detection. Open the box cover 9, then remove the first L-shaped conductive plates 41 and the second L-shaped conductive plates 42 of the two groups of conductive contact components 4 from the clamping members 10 in the box cover 9. Pass the conductive threaded rods 46 of each group through the through holes 44 of the second L-shaped conductive plates 42 and the first L-shaped conductive plates 41 respectively and screw on the nuts 47 to form a square arch structure, and respectively place them at both ends of the outer side wall of the heating coil 16. Then, remove the two coiled connecting wires 3 from the hanging posts 11, connect the round pin needles at one end of the two connecting wires 3 to the leakage current tester, and clamp the alligator clips at the other ends of the two connecting wires 3 to the two groups of conductive contact components 4 respectively. Then, press the switch button 8 to start the rechargeable battery 5 and the inverter 6 to provide 220V power for the leakage current tester 2. Then, start the leakage current tester 2 to perform a leakage current test on the heating coil 16. After the detection is completed, remove the two groups of conductive contact components 4 and install them on another heating coil 16 for a leakage current test until the leakage current detection of all heating coils 16 is completed. And during the detection process, it can be moved through the self-locking universal wheels 13 provided at the bottom of the leakage current detection box 1, so as to facilitate the leakage current detection of all heating coils 16, thereby enabling the device to quickly detect the leakage current of the heating coil 16 on the screw barrel of the injection molding machine.
[0022] The above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and are not intended to limit them. Although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that without departing from the spirit and scope defined by the claims of the present application, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features.
Claims
1. A rapid detection device for an injection molding machine heater, comprising a leakage current detection box (1), a leakage current tester (2), a connecting wire (3), a conductive contact assembly (4), a rechargeable battery (5) and an inverter (6), characterized in that, Inside the leakage current detection box (1), a partition plate (7) is horizontally and fixedly arranged at the upper part. A leakage current tester (2) is installed on the partition plate (7). Inside the leakage current detection box (1) below the partition plate (7), a rechargeable battery (5) and an inverter (6) are installed. The rechargeable battery (5) is electrically connected to the inverter (6), and the inverter (6) is electrically connected to the leakage current tester (2). A switch button (8) is arranged on the partition plate (7), and the switch button (8) controls the switches of the rechargeable battery (5) and the inverter (6). The top of the leakage current detection box (1) is rotatably connected with a box cover (9). The box cover (9) is of a deep groove structure. At the bottom of the deep groove of the box cover (9), two groups of conductive contact components (4) are fixedly arranged through a clamping member (10). Hanging posts (11) are fixedly arranged on both side walls of the deep groove of the box cover (9), and a coiled connecting wire (3) is hung on the hanging posts (11).
2. The rapid detection device for an injection molding machine heater according to claim 1, characterized in that, The conductive contact component (4) includes a first L-shaped conductive plate (41) and a second L-shaped conductive plate (42). At the end of the short side plate of the first L-shaped conductive plate (41), a first connecting plate (43) is vertically fixed. A through hole (44) is formed through the first connecting plate (43). At the end of the short side plate of the second L-shaped conductive plate (42), a second connecting plate (45) is vertically fixed. A conductive threaded rod (46) is fixed on the second connecting plate (45). A nut (47) is threadedly connected to the conductive threaded rod (46). The length direction of the conductive threaded rod (46) is consistent with the length direction of the short side plate of the second L-shaped conductive plate (42). The second L-shaped conductive plate (42) and the first L-shaped conductive plate (41) form a square arch structure by passing the conductive threaded rod (46) through the through hole (44) and screwing on the nut (47).
3. The rapid detection device for an injection molding machine heater according to claim 2, characterized in that, The clamping member (10) includes two symmetrically arranged elastic clips (101). The elastic clips (101) are fixedly arranged on the box cover (9), and the short side plates and long side plates of the first L-shaped conductive plate (41) and the second L-shaped conductive plate (42) are clamped and fixedly arranged in the box cover (9) through the two symmetrically arranged elastic clips (101).
4. A rapid detection device for an injection molding machine heater according to claim 1, characterized in that, A limiting plate (12) is fixedly arranged at the end of the hanging post (11). The limiting plate (12) is of an oval structure, and the major axis dimension of the limiting plate (12) is larger than the outer diameter dimension of the coiled connecting wire (3).
5. The rapid detection device for an injection molding machine heater according to claim 1, characterized in that, Self-locking universal wheels (13) are installed at the four corners of the bottom of the leakage current detection box (1).
6. The rapid detection device for an injection molding machine heater according to claim 1, characterized in that, Maintenance openings (14) are formed through both outer side walls of the leakage current detection box (1), and maintenance doors (15) are installed at the maintenance openings (14) through screws.
7. The rapid detection device for an injection molding machine heater according to claim 1, characterized in that, One end of the connecting wire (3) is provided with an alligator clip head, and the other end of the connecting wire (3) is provided with a round head pin.