Dispensing device for electronic transformer core mounting

Abstract

The application discloses a point gluing device for electronic transformer magnetic core installation and relates to the technical field of point gluing. The point gluing device comprises a glue tank shell, a point gluing valve cylinder is fixedly connected to one side in the glue tank shell, a point gluing assembly is arranged in the point gluing valve cylinder, a liquid injection box for injecting glue liquid is fixedly connected in the glue tank shell, the glue liquid in the liquid injection box is input into the glue tank shell through a liquid injection hole, a sealing block is fixedly connected to one side of the point gluing valve cylinder close to a lower side liquid outlet of the hydraulic device, a blocking ring for blocking the liquid injection hole is slidably connected to the sealing block, a piston piece is movably arranged in the point gluing valve cylinder, and the blocking ring and the piston piece are magnetically attracted and matched. The point gluing device adopts a push rod to drive the piston piece to rotate and lift and cooperate with the blocking ring, residual glue liquid is squeezed back to the liquid injection box, the residual glue backflow mechanism avoids direct disassembly and cleaning, and the cleaning time required for each shutdown is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dispensing, in particular to a dispensing device for electronic transformer magnetic core installation. BACKGROUND

[0002] The dispensing device for electronic transformer magnetic core installation mainly improves production efficiency and quality through automation and precise positioning technology. Such a device usually includes a magnetic core fixing structure (such as a magnetic core fixing disc and a partition strip), and combines a dispensing assembly (such as a dispenser or a dispensing tube) to achieve precise dispensing of the middle column and the side column of the magnetic core. At the same time, a conveying system or a rotating support is used to realize multi-station continuous operation.

[0003] In the dispensing process of electronic transformer magnetic cores, in order to reduce equipment cost and maintenance difficulty, a simple automatic dispensing machine with low precision is usually used to replace a professional metering dispensing machine, thereby effectively reducing investment cost, after-sales cost and operation complexity. However, during shutdown (such as daily work or short shutdown), glue liquid is easily left in the dispensing valve cylinder, and the device needs to be disassembled to remove the residual glue liquid. Otherwise, the residual glue will coagulate and block the pipeline. This operation requires 15-30 minutes to perform manual disassembly and cleaning each time, and it is repeated frequently (such as 2-3 times a day), which significantly occupies effective working hours. SUMMARY

[0004] In order to overcome the problem that glue liquid is easily left in the dispensing valve cylinder and is inconvenient to clean, the present application provides a dispensing device for electronic transformer magnetic core installation.

[0005] A dispensing device for electronic transformer magnetic core installation includes a glue tank shell. A dispensing valve cylinder is fixed on one side in the glue tank shell. A dispensing assembly is arranged in the dispensing valve cylinder. An injection box for injecting glue liquid is fixed in the glue tank shell. The glue liquid in the injection box is input into the glue tank shell through an injection hole. A sealing block is fixed on one side of the dispensing valve cylinder close to the lower side outlet of the hydraulic device. A blocking ring for blocking the injection hole is slidably connected to the sealing block. A piston is movably arranged in the dispensing valve cylinder. The blocking ring and the piston are magnetically attracted. A limiting surface for limiting the piston is arranged at the bottom of the dispensing valve cylinder. The piston is provided with screw holes symmetrically distributed along the piston frame. A push rod with a thread groove at one end is hung on the outer wall of the glue tank shell and matched with the screw holes.

[0006] More preferably, the dispensing assembly includes a sealing gasket fixed in the dispensing valve cylinder. An injection pressure frame is installed on the dispensing valve cylinder. The moving part of the injection pressure frame is slidably connected to the sealing block. A hydraulic device for outputting hydraulic oil is installed in the glue tank shell. The hydraulic device is provided with two upper and lower liquid outlets. One of the liquid outlets is located between the sealing block and the moving part of the injection pressure frame. The other liquid outlet is located between the fixed part and the moving part of the injection pressure frame. An installation block is fixed at the bottom of the dispensing valve cylinder. A dispensing head is clamped to the installation block.

[0007] More preferably, the moving part of the injection frame is provided with symmetrically distributed protrusions I, the retaining ring is in sliding connection with the protrusions I, and the protrusions I are used to push the retaining ring to slide back.

[0008] More preferably, a push block for pushing the piston to rotate back is further included, the push block is in sliding connection with one side of the bottom of the glue dispensing valve cylinder close to the limiting surface, a magnet is fixed to the bottom of the glue dispensing valve cylinder, and the push block and the magnet are matched through repulsive magnetic force.

[0009] More preferably, a wedge surface is arranged on the top of the push block, and the piston slides to the side close to the magnet by extruding the push block through the wedge surface.

[0010] More preferably, a mounting pipe is further included, the mounting pipe is fixed to the glue tank shell, and a screw cylinder is threadedly connected to the mounting pipe.

[0011] More preferably, a sealing column is further included, the sealing column is fixed to the screw cylinder, and the sealing column is inserted into the glue tank shell.

[0012] More preferably, a telescopic rod symmetrically distributed along the sealing block is further included, the telescopic rod is fixed to the sealing block, a convex plate is fixed to the telescopic end of the telescopic rod, and the convex plate is used to limit the retaining ring.

[0013] More preferably, the convex plate is provided with protrusions II and III, the convex plate limits the top of the retaining ring through the protrusions II, and the protrusions I and III are extruded and matched, so as to automatically release the limitation of the retaining ring by the protrusions II.

[0014] More preferably, a sealing ring is further included, and the sealing ring is fixed to the outside of the retaining ring.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. The push rod drives the piston to rotate and lift in cooperation with the retaining ring structure, so that the residual glue liquid is squeezed back to the liquid injection box. This residual glue return mechanism avoids direct disassembly and cleaning, reduces the cleaning time required for each shutdown, and is simple to operate.

[0017] 2. The push block pushes the piston to automatically rotate in reverse and limit under the repulsive magnetic force, so as to prevent the operator from forgetting to reset or assembling incorrectly. This automatic reset mechanism reduces the requirement for operation proficiency, is particularly suitable for production environments dominated by low-skilled labor, and enhances the stability and ease of use of the equipment.

[0018] 3. The screw cylinder controls the sealing column to open and close the mounting pipe, realizes the functions of clean water injection and circulating flushing, ensures the internal cleanliness of the glue dispensing cylinder, and improves the cleaning efficiency and effect through the structure scheme of rapid water washing.

[0019] 4、The present application forms a blocking ring locking mechanism through the cooperation of the telescopic rod and the convex structure, prevents leakage caused by the sliding of the blocking ring during the washing process, and can be automatically unlocked during the next glue dispensing, so that the automatic locking and release of the key components are realized, and the safe and smooth operation is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the present application.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the present application.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the present application.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the present application.

[0028] Figure 9 It is a schematic diagram of the three-dimensional structure of the present application.

[0029] Figure 10 It is a schematic diagram of the three-dimensional structure of the present application.

[0030] Figure 11 It is a schematic diagram of the three-dimensional structure of the present application.

[0031] Figure 12 It is a schematic diagram of the three-dimensional structure of the present application.

[0032] The labels of the components in the drawings are as follows: 1, glue tank shell, 2, glue dispensing valve cylinder, 3, sealing gasket, 4, injection pressure frame, 401, protrusion one, 5, hydraulic device, 6, liquid injection box, 601, liquid injection hole, 7, sealing block, 8, blocking ring, 9, piston piece, 901, limiting surface, 10, mounting block, 11, glue dispensing head, 12, push rod, 13, push block, 14, magnet, 15, mounting pipe, 16, sealing column, 17, screw cylinder, 18, telescopic rod, 19, protruding plate, 191, protrusion two, 192, protrusion three, 20, sealing ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Embodiment 1: A glue dispensing device for mounting an electronic transformer magnetic core, as shown in Figure 1 , Figure 2 and Figure 3 , comprising a glue tank shell 1, a glue dispensing valve cylinder 2 is fixed to the left side in the glue tank shell 1, a sealing gasket 3 is fixed in the glue dispensing valve cylinder 2, the glue tank shell 1, the glue dispensing valve cylinder 2 and the sealing gasket 3 are all composed of left and right two parts that can be spliced and disassembled, an injection pressure frame 4 is mounted on the upper part of the glue dispensing valve cylinder 2, as shown in Figure 6 , the moving part of the injection pressure frame 4 is provided with symmetrically distributed protrusions one 401.

[0035] As shown in Figure 3 , a hydraulic device 5 for outputting hydraulic oil is mounted on the right side in the glue tank shell 1, the hydraulic device 5 is provided with two upper and lower liquid outlets, the upper liquid outlet is located between the fixed part and the moving part of the injection pressure frame 4, for hydraulic driving the moving part of the injection pressure frame 4 to slide downward, a liquid injection box 6 for injecting glue liquid is fixed to the right side in the glue tank shell 1, the glue liquid in the liquid injection box 6 is input into the glue tank shell 1 through the liquid injection hole 601, a sealing block 7 is fixed to one side of the glue dispensing valve cylinder 2 close to the lower liquid outlet of the hydraulic device 5, the moving part of the injection pressure frame 4 penetrates downward from the middle part of the sealing block 7, and the moving part of the injection pressure frame 4 is in sliding connection with the sealing block 7, the sealing block 7 can separate the upper hydraulic oil space and the lower glue liquid space in the glue dispensing valve cylinder 2, and the lower liquid outlet of the hydraulic device 5 is located between the sealing block 7 and the moving part of the injection pressure frame 4, for hydraulic driving the moving part of the injection pressure frame 4 to slide upward.

[0036] As shown in Figure 3 , Figure 5 and Figure 6As shown, the lower part of the sealing block 7 is connected with the blocking ring 8 in the up-down direction, the blocking ring 8 is composed of a hollow pipe with an open upper end and a closed lower end and two left and right opposite inverted L-shaped rods, the inverted L-shaped rods of the blocking ring 8 are connected with the adjacent convex one 401 in sliding mode, and the convex one 401 is used for pushing the blocking ring 8 upward to slide back.

[0037] As shown in Figure 4 and Figure 5 The piston 9 is arranged in the glue dispensing valve cylinder 2, the piston 9 can slide up and down along the moving part of the injection pressure frame 4 and rotate around the moving part of the injection pressure frame 4, the piston 9 is composed of a cylinder and two left and right convex rods at the bottom, the piston 9 is used for pushing the residual glue liquid in the glue dispensing valve cylinder 2 back to the glue injection box 6, when the piston 9 moves upward and contacts with the blocking ring 8, the two are magnetically attracted, the bottom of the glue dispensing valve cylinder 2 is provided with a limiting surface 901 for limiting the piston 9, preventing the piston 9 from jumping up and down when it is at the bottom (i.e. when the glue is dropped), the two convex rods of the piston 9 are provided with threaded holes at the bottom, the bottom of the glue dispensing valve cylinder 2 is fixedly connected with the mounting block 10, the mounting block 10 is clamped with the glue dispensing head 11, a communication path is opened between the piston 9, the mounting block 10 and the glue dispensing head 11 for the glue to drop out, the glue dispensing head 11 can be separately removed and cleaned, two push rods 12 are hung on the outer wall of the glue tank shell 1, the bottom end of the push rod 12 is provided with a threaded groove matched with the threaded hole, as shown in Figure 10 The outer wall of the blocking ring 8 is fixedly connected with the sealing ring 20, when the blocking ring 8 blocks the glue injection hole 601, the sealing is performed through the sealing ring 20 therebetween, improving the sealing effect of blocking the glue injection hole 601.

[0038] When the electronic transformer magnetic core column and the side column are glued by using the glue dispensing device, the glue liquid is injected into the glue dispensing valve cylinder 2 through the glue injection hole 601 of the glue injection box 6, and then the hydraulic device 5 is controlled to inject intermittently, when the lower side is injected, the injection pressure frame 4 slides upward until the lower end of the injection pressure frame 4 pulls out the piston 9, the glue liquid in the glue dispensing valve cylinder 2 flows downward through the communication path of the piston 9, the mounting block 10 and the glue dispensing head 11 in sequence, thus realizing the glue dispensing effect, and through the intermittent injection of the hydraulic device 5 and the linkage structure design of the piston 9, the automatic opening and closing of the glue liquid flow path are realized, the glue dispensing rhythm and flow are effectively controlled, compared with the problem of unstable glue dispensing caused by the simple structure of the traditional glue dispensing device, the controllability and repeatability of the glue dispensing process are improved, and the product quality consistency is guaranteed.

[0039] After the dispensing is completed, the residual glue inside the dispensing valve cylinder 2 needs to be cleaned in time when the dispensing operation is suspended to prevent the residual glue from coagulating and blocking the pipeline. The specific operation is as follows: the push rod 12 is removed, the threaded part of the push rod 12 is screwed into the threaded groove of the piston piece 9, the piston piece 9 is first rotated by the push rod 12, so that the piston piece 9 is separated from the limiting surface 901, so that the piston piece 9 can slide upward, the piston piece 9 extrudes the residual glue liquid in the dispensing valve cylinder 2 into the liquid injection box 6 until the top of the piston piece 9 is in magnetic contact with the bottom of the blocking ring 8, at this time, the piston piece 9 blocks the liquid injection hole 601.

[0040] Then, the push rod 12 is pulled downward, the push rod 12 pulls the blocking ring 8 to slide downward along the sealing block 7 to the limit through the piston piece 9, at this time, the blocking ring 8 blocks the liquid injection hole 601 instead of the piston piece 9, the upper bent part of the inverted L-shaped rod of the blocking ring 8 contacts the protrusion one 401, and then the piston piece 9 continues to slide downward and is separated from the magnetic blocking ring 8. When the piston piece 9 is reset downward, the piston piece 9 is reversely rotated by the push rod 12, so that the piston piece 9 is blocked by the limiting surface 901 again, the push rod 12 is loosened and removed, and the push rod 12 is put back to the original position. Next time dispensing, the injection pressure frame 4 slides upward to push the blocking ring 8 to slide upward through the protrusion one 401, so that the liquid injection hole 601 is automatically reopened, and the above dispensing operation can be repeated.

[0041] In summary, the push rod 12 drives the piston piece 9 to rotate and lift to cooperate with the blocking ring 8, and the residual glue liquid is extruded back to the liquid injection box 6, this residual glue backflow mechanism avoids direct disassembly and cleaning, reduces the cleaning time required for each shutdown, and is simple to operate.

[0042] As shown in Figure 7 , it also includes a push block 13 for pushing the piston piece 9 to rotate and reset, the push block 13 is slidingly connected to one side of the bottom of the dispensing valve cylinder 2 close to the limiting surface 901 in the annular direction, when the piston piece 9 slides downward and resets, the push block 13 is used to push the piston piece 9 to automatically reverse rotate to be blocked by the limiting surface 901, the bottom of the dispensing valve cylinder 2 is fixedly connected with a magnet 14, the push block 13 and the magnet 14 cooperate through repelling magnetic force, the top of the push block 13 is provided with a wedge surface, and one of the protruding rods of the piston piece 9 extrudes the wedge surface of the push block 13, so that the push block 13 slides to the side close to the magnet 14.

[0043] When the piston 9 slides upward, the piston 9 is separated from the push block 13, at this time, the push block 13 slides to the side close to the limiting surface 901 under the repulsion magnetic force of the magnet 14, when the piston 9 slides upward, the piston 9 is in contact with the wedge surface of the push block 13, and extrudes the push block 13 to slide to the side close to the magnet 14, when the piston 9 is separated from the wedge surface of the push block 13 downward, the push block 13 slides to the side close to the limiting surface 901 again under the repulsion magnetic force of the magnet 14, and pushes the piston 9 to automatically reverse rotation to be blocked by the limiting surface 901, preventing the operator from forgetting to reverse rotate the piston 9 through the push rod 12 when pulling the piston 9 downward to reset.

[0044] On the basis of example 1, as shown in Figure 8 and Figure 9 It also includes a mounting pipe 15, the mounting pipe 15 is fixedly connected with the glue tank shell 1, the mounting pipe 15 is threadedly connected with a screw cylinder 17, the screw cylinder 17 is fixedly connected with a sealing column 16, and the sealing column 16 is inserted into the glue tank shell 1.

[0045] During the sliding process of the piston 9 downward, the screw cylinder 17 is unscrewed, the sealing column 16 is separated from the mounting pipe 15, so that the mounting pipe 15 is opened, clean water is injected into the glue valve barrel 2 through the mounting pipe 15, then the sealing column 16 is inserted and the screw cylinder 17 is tightened, the piston 9 is pushed to a position below the mounting pipe 15, and the water flow is pushed up and down for multiple times, so that the glue valve barrel 2 is washed with water, so that the glue valve barrel 2 is cleaned more cleanly, after the water washing is completed, the screw cylinder 17 is unscrewed again to drain all the sewage in the glue valve barrel 2, and finally the screw cylinder 17 is screwed again.

[0046] As shown in Figure 10 , Figure 11 and Figure 12 It also includes a telescopic rod 18 which is symmetrically distributed along the sealing block 7, the telescopic rod 18 is fixedly connected with the sealing block 7, the telescopic end of the telescopic rod 18 is fixedly connected with a convex plate 19, the convex plate 19 is provided with a convex two 191 and a convex three 192, wherein Figure 10 The initial state of the blocking ring 8 is shown, at this time, the convex two 191 is in contact with the outer wall of the inverted L-shaped rod adjacent to the blocking ring 8, and the telescopic rod 18 is in a compressed state, wherein Figure 11 The state of the blocking ring 8 sliding downward to the limit is shown, at this time, the convex plate 19 limits the top of the blocking ring 8 through the convex two 191, in addition, the convex one 401 moves upward and is extruded and matched with the convex three 192.

[0047] The telescopic rod 18 is in compression state by the L-shaped protruding rod extrusion protrusion two 191 of the stop ring 8, when the stop ring 8 moves downward to the limit, the L-shaped protruding rod moves to the bottom of the protrusion two 191, at this time, the telescopic rod 18 automatically rebounds to reset, which drives the tab 19 to slide to the side close to the middle, the protrusion two 191 is clamped above the stop ring 8, preventing the stop ring 8 from sliding upward under the action of water pressure during washing, causing the glue solution to flow out of the injection hole 601.

[0048] Next time dispensing, the protrusion one 401 pushes the stop ring 8 upward, first moves upward to contact the protrusion three 192, and through the protrusion three 192 extrusion tab 19 to slide to the side of the compressed telescopic rod 18, so that the protrusion two 191 no longer blocks the stop ring 8, achieving the effect of automatic unlocking.

[0049] Although embodiments of the present application have been shown and described, it is to be understood that various modifications can be made to these embodiments without departing from the principles and spirit of the application, the scope of which is to be determined by the appended claims and their equivalents.

Claims

1. A dispensing device for installing magnetic cores of electronic transformers, comprising a glue tank shell (1), a dispensing valve cylinder (2) fixedly connected to one side inside the glue tank shell (1), and a dispensing assembly disposed inside the dispensing valve cylinder (2), characterized in that: The glue tank shell (1) is fixedly connected with a liquid injection box (6) for injecting glue liquid, the glue liquid in the liquid injection box (6) is input into the glue tank shell (1) through a liquid injection hole (601), a sealing block (7) is fixedly connected with one side of the glue injection valve barrel (2) close to the lower side of the hydraulic device (5), the sealing block (7) is slidably connected with a blocking ring (8) for blocking the liquid injection hole (601), a piston piece (9) is movably arranged in the glue injection valve barrel (2), the blocking ring (8) and the piston piece (9) are magnetically attracted, a limiting surface (901) for limiting the piston piece (9) is arranged at the bottom of the glue injection valve barrel (2), the piston piece (9) is provided with screw holes symmetrically distributed along the piston frame, a push rod (12) is hung on the outer wall of the glue tank shell (1) and opposite to the screw holes, and a threaded groove is formed in one end of the push rod (12) and matched with the screw holes; the moving part of the injection pressure frame (4) is provided with protrusions (401) symmetrically distributed, the blocking ring (8) is slidably connected with the protrusions (401), and the protrusions (401) are used for slidingly resetting the blocking ring (8); further comprising a push block (13) for rotatingly resetting the piston piece (9), the push block (13) is slidably connected to one side of the bottom of the glue injection valve barrel (2) close to the limiting surface (901), a magnet (14) is fixedly connected to the bottom of the glue injection valve barrel (2), and the push block (13) and the magnet (14) are matched through repulsive magnetic force; a wedge surface is arranged at the top of the push block (13), and the piston piece (9) is slidably pressed to the side close to the magnet (14) through the wedge surface; further comprising telescopic rods (18) symmetrically distributed along the sealing block (7), the telescopic rods (18) are fixedly connected with the sealing block (7), the telescopic ends of the telescopic rods (18) are fixedly connected with a lug plate (19), and the lug plate (19) is used for limiting the blocking ring (8); the lug plate (19) is provided with protrusions (191) and protrusions (192), the lug plate (19) limits the top of the blocking ring (8) through the protrusions (191), the protrusions (401) and the protrusions (192) are extruded and matched, and are used for automatically releasing the limitation of the protrusions (191) on the blocking ring (8).

2. The point glue device for mounting electronic transformer core according to claim 1, characterized in that: The glue injection assembly comprises a sealing gasket (3), the sealing gasket (3) is fixedly connected in the glue injection valve barrel (2), the glue injection valve barrel (2) is provided with an injection pressure frame (4), the moving part of the injection pressure frame (4) is slidably connected with the sealing block (7), the glue tank shell (1) is provided with a hydraulic device (5) for outputting hydraulic oil, the hydraulic device (5) is provided with two upper and lower liquid outlets, one of which is located between the sealing block (7) and the moving part of the injection pressure frame (4), and the other is located between the fixed part and the moving part of the injection pressure frame (4), the bottom of the glue injection valve barrel (2) is fixedly connected with a mounting block (10), and the mounting block (10) is clamped with a glue injection head (11).

3. The apparatus according to claim 2, wherein the apparatus is characterized by: Further comprising a mounting pipe (15), the mounting pipe (15) is fixedly connected with the glue tank shell (1), and the mounting pipe (15) is threadedly connected with a screw cylinder (17).

4. The apparatus according to claim 3, wherein the apparatus is characterized by: Further comprising a sealing column (16), the sealing column (16) is fixedly connected with the screw cylinder (17), and the sealing column (16) is inserted into the glue tank shell (1).

5. The apparatus according to claim 4, wherein the apparatus is characterized by: Further comprising a sealing ring (20), the sealing ring (20) is fixedly connected to the outer side of the blocking ring (8).

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