Dispensing machine for membrane switch

Abstract

The utility model provides a dispensing machine for a membrane switch, which belongs to the technical field of membrane switches and comprises a workbench, a vertical plate is fixedly arranged on the left side of the upper surface of the workbench, side plates are fixedly arranged on two sides above the right side surface of the vertical plate, and a first motor is fixedly arranged on the left side plate; according to the glue dispenser, the electric heating plate is arranged and used for heating glue in the glue storage barrel, the glue is prevented from being cooled and solidified, normal operation of the glue dispenser is guaranteed, and in the glue dispensing process, the guide rod firstly makes contact with the glue dispensing position and moves upwards, so that the rubber disc is separated from the rubber ring, and the glue flows out of the central through hole of the rubber ring; and after dispensing is completed, the hydraulic rod shrinks, the guide rod does not make contact with the dispensing position, the rubber disc is attached to the rubber ring through the elastic force of the first sleeving spring, a central through hole of the rubber ring is blocked, glue at the position of the dispensing head is prevented from falling off, and the dispensing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane switches, in particular to a glue dispensing machine used for membrane switches. Background Art

[0002] Membrane switch is an operating system that integrates key functions, indicating elements, and instrument panels. It uses an overall sealed structure composed of a flat multi-layer combination to seal the key switch, panel, mark, symbol display and lining together, which is a fundamental change in the appearance structure of electronic products. Membrane switches have good waterproof, dustproof, oil-proof, and anti-corrosion of harmful gases, stable and reliable performance, light weight, small size, long life, easy installation, the panel can be washed without damaging the characters, rich colors, and beautiful appearance.

[0003] A membrane switch glue dispenser is a device used to apply glue to a membrane switch. This device usually uses automated technology to apply glue quickly and accurately.

[0004] In the prior art, a Chinese patent with patent publication number CN218223227U discloses a glue dispensing machine for a membrane switch. The utility model can heat the red glue by setting a glue dispensing injection component to prevent the red glue from solidifying during the process of the glue dispensing machine dispensing and fixing the LED light on the membrane switch, thereby avoiding the occurrence of the glue dispensing machine being unable to dispense glue normally, and there is no need to remove the solidified red glue, thereby improving processing efficiency and reducing production costs.

[0005] The device heats the glue to prevent it from solidifying to ensure the normal operation of the glue dispensing machine. However, the fluidity of the glue in the glue dispensing machine increases after being heated, and the glue is easy to drip directly through the glue dispensing head, affecting the glue dispensing quality. Therefore, a glue dispensing machine for a membrane switch is designed to solve the above problem. Utility Model Content

[0006] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology and to propose a glue dispensing machine for a membrane switch.

[0007] The technical problem to be solved by the utility model is to provide a glue dispensing machine for a membrane switch, which can prevent heated glue from dripping from a glue dispensing head of the glue dispensing machine and has high practicality.

[0008] The utility model provides a glue dispensing machine for a membrane switch, comprising: a workbench, a vertical plate, a side plate, a first motor, a first screw rod, a slider, a mounting plate, a hydraulic rod and a glue storage cylinder, wherein a vertical plate is fixedly arranged on the left side of the upper surface of the workbench, side plates are fixedly arranged on both sides above the right side surface of the vertical plate, a first motor is fixedly arranged on the left side plate, a first screw rod is fixedly arranged on the output end of the first motor, a slider is threadedly connected on the first screw rod, a hydraulic rod is installed on the right side surface of the slider through the mounting plate, a glue storage cylinder is installed at the bottom of the hydraulic rod, a concave frame is fixedly arranged at the center of the upper surface of the workbench, A second motor is fixedly provided on the right side surface of the concave frame, a second screw is fixedly provided on the output end of the second motor, a material fixing block is threadedly connected to the second screw, an electric heating plate is fixedly provided on the inner surface of the glue storage cylinder, a glue dispensing head is penetrated through the bottom of the glue storage cylinder, a rubber ring is fixedly provided on the upper inner side of the glue dispensing head, mounting cross bars are fixedly provided on both the left and right sides of the inside of the glue dispensing head, sleeve rings are installed on the ends of the two mounting cross bars, a guide rod is penetrated in the sleeve ring, a rubber disc is fixedly provided on the top of the guide rod, and a first sleeve spring is fixedly provided between the rubber disc and the sleeve ring.

[0009] Preferably, the diameter of the rubber disk is larger than the diameter of the central through hole of the rubber ring, and the diameter of the rubber disk is smaller than the diameter of the central through hole of the dispensing head.

[0010] Preferably, the rubber disc is attached to the center of the upper surface of the rubber ring, and the first sleeve spring is in a stretched state.

[0011] Preferably, the bottom level of the guide rod is lower than the bottom level of the dispensing head.

[0012] Preferably, the material fixing block includes an inverted concave frame, a through rod, a clamping plate, a second sleeve spring, a rectangular groove, a spring and a clamping block. The upper surface of the material fixing block is fixedly provided with an inverted concave frame, through rods are penetrated on both sides of the inverted concave frame, clamping plates are fixedly provided at the ends of the through rods, and the second sleeve spring is fixedly provided between the clamping plate and the inverted concave frame. A rectangular groove is opened on the upper surface of the material fixing block, a spring is fixedly provided in the rectangular groove, and a clamping block is fixedly provided at the end of the spring.

[0013] Preferably, the clamping plate and the clamping block are both made of rubber.

[0014] Preferably, the clamping block slides in the rectangular groove, and the horizontal height of the upper surface of the clamping block is higher than the horizontal height of the upper surface of the material fixing block.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] 1. The utility model is provided with an electric heating plate, which heats the glue in the glue storage cylinder to prevent the glue from cooling and solidifying, thereby ensuring the normal operation of the glue dispensing machine.

[0017] 2. The utility model is provided with a rubber disc and a rubber ring. During the dispensing process, the guide rod first contacts the dispensing position, and the guide rod moves upward to separate the rubber disc from the rubber ring. The glue flows out from the central through hole of the rubber ring and then flows out from the bottom end of the dispensing head to achieve the dispensing effect. After the dispensing is completed, the hydraulic rod contracts and the guide rod does not contact the dispensing position. The elastic force of the first sleeve spring makes the rubber disc stick to the rubber ring to block the central through hole of the rubber ring, thereby preventing the glue at the dispensing head from falling and ensuring the dispensing quality.

[0018] 3. The utility model is provided with a material fixing block. When the membrane switch needs to be fixed, the two through rods are pulled to both sides, and the through rods drive the clamping plates to move to both sides. The second sleeve spring is in a compressed state, and then the clamping block is pushed outward to compress the spring, and then the membrane switch is placed between the two clamping plates and the clamping block. The elastic force of the second sleeve spring enables the two clamping plates to clamp the left and right sides of the membrane switch, and the clamping block cooperates with the inverted concave frame to clamp the front and back sides of the membrane switch, thereby ensuring the stability of the membrane switch and being suitable for clamping membrane switches of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a three-dimensional schematic diagram of the local structure of the utility model.

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the rubber storage cylinder of the utility model.

[0023] Figure 4 For this utility model Figure 4 A is an enlarged schematic diagram of the structure.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the material fixing block of the utility model.

[0025] [reference numerals]

[0026] 1. Workbench; 2. Vertical plate; 3. Side plate; 4. First motor; 5. First screw rod; 6. Slider; 7. Mounting plate; 8. Hydraulic rod; 9. Glue storage cylinder; 901. Electric heating plate; 902. Glue dispensing head; 10. Concave frame; 11. Second motor; 12. Second screw rod; 13. Material fixing block; 1301. Inverted concave frame; 1302. Through rod; 1303. Clamp; 1304. Second sleeve spring; 1305. Rectangular groove; 1306. Spring; 1307. Clamp; 14. Rubber ring; 15. Mounting cross bar; 16. Ring; 17. Guide rod; 18. Rubber disc; 19. First sleeve spring. DETAILED DESCRIPTION

[0027] Example:

[0028] like Figure 1-Figure 4 As shown, an embodiment of the utility model provides a glue dispensing machine for a membrane switch, comprising: a workbench 1, a vertical plate 2, a side plate 3, a first motor 4, a first screw rod 5, a slider 6, a mounting plate 7, a hydraulic rod 8 and a glue storage cylinder 9. The vertical plate 2 is fixedly arranged on the left side of the upper surface of the workbench 1, and the side plates 3 are fixedly arranged on both sides above the right surface of the vertical plate 2. The first motor 4 is fixedly arranged on the left side plate 3, and the first screw rod 5 is fixedly arranged on the output end of the first motor 4. The slider 6 is threadedly connected to the first screw rod 5. The hydraulic rod 8 is installed on the right surface of the slider 6 through the mounting plate 7. The glue storage cylinder 9 is installed at the bottom of the hydraulic rod 8. A concave frame 10 is fixedly arranged in the center of the upper surface of the workbench 1. The concave frame A second motor 11 is fixedly provided on the right surface of 10, a second screw rod 12 is fixedly provided on the output end of the second motor 11, a material fixing block 13 is threadedly connected to the second screw rod 12, an electric heating plate 901 is fixedly provided on the inner surface of the glue storage cylinder 9, a glue dispensing head 902 is penetrated through the bottom of the glue storage cylinder 9, a rubber ring 14 is fixedly provided on the inner upper side of the glue dispensing head 902, mounting cross bars 15 are fixedly provided on both sides of the inside of the glue dispensing head 902, sleeve rings 16 are installed at the ends of the two mounting cross bars 15, a guide rod 17 is penetrated in the sleeve ring 16, a rubber disc 18 is fixedly provided on the top of the guide rod 17, and a first sleeve spring 19 is fixedly provided between the rubber disc 18 and the sleeve ring 16.

[0029] During actual use, the membrane switch that needs to be glued is placed on the material fixing block 13, glue is added into the glue storage cylinder 9, and the electric heating plate 901 heats the glue in the glue storage cylinder 9 to prevent the glue from cooling and solidifying. The first motor 4 drives the first screw rod 5 to rotate, so that the first screw rod 5 drives the slider 6 to move left and right, and the slider 6 drives the hydraulic rod 8 and the glue storage cylinder 9 to move left and right. The second motor 11 drives the second screw rod 12 to rotate, so that the second screw rod 12 drives the material fixing block 13 to move inside and outside, so that the glue dispensing position of the membrane switch on the material fixing block 13 is directly below the glue dispensing head 902. The glue storage cylinder 9 is driven downward by the hydraulic rod 8, and the guide rod 17 in the glue dispensing head 902 contacts the glue dispensing point. The guide rod 17 moves upward, so that the rubber disc 18 is separated from the rubber ring 14, and the glue flows out from the central through hole of the rubber ring 14, and then flows out from the bottom end of the glue dispensing head 902 to achieve the glue dispensing effect. After the glue dispensing is completed, the hydraulic rod contracts, and the guide rod 17 does not contact the glue dispensing point. The elastic force of the first sleeve spring 19 makes the rubber disc 18 stick to the rubber ring 14, blocking the central through hole of the rubber ring 14 to prevent the glue at the glue dispensing head 902 from falling, thereby ensuring the glue dispensing quality.

[0030] In this embodiment, the diameter of the rubber disk 18 is larger than the diameter of the central through hole of the rubber ring 14 , and the diameter of the rubber disk 18 is smaller than the diameter of the central through hole of the glue dispensing head 902 , so as to prevent the rubber disk 18 from blocking the glue dispensing head 902 .

[0031] In this embodiment, the rubber disk 18 is attached to the center of the upper surface of the rubber ring 14 , and the first sleeve spring 19 is in a stretched state, so that the rubber disk 18 can block the central through hole of the rubber ring 14 .

[0032] In this embodiment, the bottom horizontal height of the guide rod 17 is lower than the bottom horizontal height of the glue dispensing head 902, so that the guide rod 17 can contact the glue dispensing location and drive the rubber disc 18 to move upward.

[0033] In this embodiment, refer to Figure 5 As shown, the material fixing block 13 includes an inverted concave frame 1301, a through rod 1302, a clamping plate 1303, a second sleeve spring 1304, a rectangular groove 1305, a spring 1306 and a clamping block 1307. The inverted concave frame 1301 is fixedly arranged on the upper surface of the material fixing block 13, through rods 1302 are penetrated on both sides of the inverted concave frame 1301, the clamping plate 1303 is fixedly arranged at the end of the through rod 1302, the second sleeve spring 1304 is fixedly arranged between the clamping plate 1303 and the inverted concave frame 1301, a rectangular groove 1305 is opened on the upper surface of the material fixing block 13, the spring 1306 is fixedly arranged in the rectangular groove 1305, and the clamping block 1307 is fixedly arranged at the end of the spring 1306.

[0034] In this embodiment, the clamping plate 1303 and the clamping block 1307 are both made of rubber to prevent damage to the membrane switch.

[0035] In this embodiment, the clamping block 1307 slides in the rectangular groove 1305, and the upper surface level of the clamping block 1307 is higher than the upper surface level of the material fixing block 13, so that the clamping block 1307 can cooperate with the inverted concave frame 1301 to clamp the membrane switch.

[0036] By providing a material fixing block 13, when the membrane switch needs to be fixed, the two through rods 1302 are pulled to both sides, and the through rods 1302 drive the clamping plates 1303 to move to both sides, and the second sleeve spring 1304 is in a compressed state, and then the clamping block 1307 is pushed outward to compress the spring 1306, and then the membrane switch is placed between the two clamping plates 1303 and the clamping block 1307. The elastic force of the second sleeve spring 1304 enables the two clamping plates 1303 to clamp the left and right sides of the membrane switch, and the clamping block 1307 cooperates with the inverted concave frame 1301 to clamp the front and back sides of the membrane switch, thereby ensuring the stability of the membrane switch and being suitable for clamping membrane switches of different sizes.

Claims

1. A glue dispensing machine for a membrane switch, characterized in that: include: A workbench (1), a vertical plate (2), a side plate (3), a first motor (4), a first screw rod (5), a slider (6), a mounting plate (7), a hydraulic rod (8) and a rubber storage cylinder (9), wherein the vertical plate (2) is fixedly arranged on the left side of the upper surface of the workbench (1), the side plates (3) are fixedly arranged on both sides above the right side surface of the vertical plate (2), the first motor (4) is fixedly arranged on the left side plate (3), the first screw rod (5) is fixedly arranged at the output end of the first motor (4), the first screw rod (5) is threadedly connected to the slider (6), the hydraulic rod (8) is installed on the right side surface of the slider (6) through the mounting plate (7), the rubber storage cylinder (9) is installed at the bottom of the hydraulic rod (8), the concave frame (10) is fixedly arranged in the center of the upper surface of the workbench (1), the right side surface of the concave frame (10) is fixedly arranged A second motor (11), the output end of the second motor (11) is fixedly provided with a second screw rod (12), the second screw rod (12) is threadedly connected with a material fixing block (13), the inner surface of the glue storage cylinder (9) is fixedly provided with an electric heating plate (901), the bottom of the glue storage cylinder (9) is penetrated with a glue dispensing head (902), a rubber ring (14) is fixedly provided on the inner upper part of the glue dispensing head (902), the left and right sides of the inside of the glue dispensing head (902) are fixedly provided with mounting cross bars (15), the ends of the two mounting cross bars (15) are installed with sleeve rings (16), a guide rod (17) is penetrated in the sleeve ring (16), a rubber disc (18) is fixedly provided on the top of the guide rod (17), and a first sleeve spring (19) is fixedly provided between the rubber disc (18) and the sleeve ring (16).

2. The glue dispensing machine for a membrane switch according to claim 1, characterized in that: The diameter of the rubber disk (18) is greater than the diameter of the central through hole of the rubber ring (14), and the diameter of the rubber disk (18) is smaller than the diameter of the central through hole of the dispensing head (902).

3. The glue dispensing machine for a membrane switch according to claim 2, characterized in that: The rubber disk (18) is attached to the center of the upper surface of the rubber ring (14), and the first sleeve spring (19) is in a stretched state.

4. The glue dispensing machine for a membrane switch according to claim 3, characterized in that: The bottom level of the guide rod (17) is lower than the bottom level of the glue dispensing head (902).

5. The glue dispensing machine for a membrane switch according to claim 1, characterized in that: The material fixing block (13) comprises an inverted concave frame (1301), a through rod (1302), a clamping plate (1303), a second sleeve spring (1304), a rectangular groove (1305), a spring (1306) and a clamping block (1307); the inverted concave frame (1301) is fixedly arranged on the upper surface of the material fixing block (13); through rods (1302) are penetrated on both sides of the inverted concave frame (1301); a clamping plate (1303) is fixedly arranged at the end of the through rod (1302); a second sleeve spring (1304) is fixedly arranged between the clamping plate (1303) and the inverted concave frame (1301); a rectangular groove (1305) is opened on the upper surface of the material fixing block (13); a spring (1306) is fixedly arranged in the rectangular groove (1305); and a clamping block (1307) is fixedly arranged at the end of the spring (1306).

6. The glue dispensing machine for a membrane switch according to claim 5, characterized in that: The clamping plate (1303) and the clamping block (1307) are both made of rubber.

7. The glue dispensing machine for a membrane switch according to claim 6, characterized in that: The clamping block (1307) slides in the rectangular groove (1305), and the upper surface level of the clamping block (1307) is higher than the upper surface level of the material fixing block (13).

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