Glue discharging device for circuit board glue dispenser

Abstract

The utility model discloses a glue discharging device for a circuit board glue dispenser. The glue discharging device comprises a glue dispensing head body, a storage cavity, a glue inlet, glue feeding equipment, a glue discharging opening and a glue discharging device, according to the utility model, the glue discharging device is arranged to facilitate the stable proceeding of the glue discharging process, the glue discharging operation and the sealing operation of the glue discharging device are realized through the communication and staggering of the connecting channel and the glue discharging pipe, and the electric heating pipe and the second electric heating pipe are arranged to heat the joint of the glue discharging pipe, the substrate and the base, so that the glue discharging efficiency is improved. By arranging the adjusting piece, the overall communication and staggering of the glue discharging device can be conveniently adjusted, the connecting channel is driven to move by rotating the base plate, so that the connecting channel and the glue discharging pipe are communicated or staggered, glue discharging is achieved, and through the clamping connection effect of the limiting groove and the clamping block, the glue discharging device is convenient to use. And the stability when the connecting channel is communicated with the glue discharging pipe is ensured.

Description

Technical Field

[0001] The utility model relates to the field of PCB circuit boards, in particular to a glue discharging device for a circuit board dispenser. Background Art

[0002] A PCB board, whose Chinese name is printed circuit board and also known as printed wiring board, is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. Since it is made by electronic printing technology, it is called a "printed" circuit board.

[0003] Chinese Patent No. CN202120789770.4 discloses "A Quick Glue Discharging Device and Its Dispensing Device". When the locking structure loosens the glue discharging plug, a gap is formed between the inner end of the glue discharging plug and the bottom of the jack. Therefore, the inner glue discharging hole will communicate with the outer glue discharging hole through the gap, and the glue and the bubbles carried in the accommodating cavity are discharged to the outside in sequence through the inner glue discharging hole, the gap and the outer glue discharging hole. After there are no bubbles in the glue in the accommodating cavity, the glue discharging plug is locked again through the locking structure to block the inner glue discharging hole, thus realizing quick glue discharging.

[0004] This structure has certain advantages, but there are still some deficiencies:

[0005] After exhausting the air, the gap is closed by the inward movement of the glue discharging plug. During the movement of the glue discharging plug, the glue remaining inside the gap is squeezed, resulting in the situation that the glue moves towards the outer glue discharging hole and the inner glue discharging hole. The glue existing in the outer glue discharging hole due to extrusion directly contacts the external air. After a certain period of time, the glue solidifies, blocking the outer glue discharging hole, causing abnormalities in the glue discharging device, being not smooth to use, and requiring frequent repairs, which is rather troublesome. Content of the Utility Model

[0006] Therefore, in order to solve the above deficiencies, the utility model provides a glue discharging device for a circuit board dispenser.

[0007] To achieve the above object, the utility model adopts the following technical solutions: A glue discharging device for a circuit board dispensing machine, including a dispensing head body, a storage cavity, a glue inlet, a glue feeding device, a glue discharging port, and a glue discharging device. A storage cavity is arranged inside the dispensing head body. A glue inlet is opened at the rear end of the dispensing head body. The glue feeding device is installed at the rear end of the dispensing head body and is communicated with the glue inlet. The glue discharging port is arranged at the left end of the dispensing head body. The glue discharging device is installed at the left end of the dispensing head body, and its right end is communicated with the glue discharging port. The glue discharging device includes a base, a heat insulation layer, an electric heating tube, a glue discharging pipe, a second heat insulation layer, a second electric heating tube, a positioning shaft, a spring piece, a clamping block, and an adjusting part. The base is installed at the left end of the dispensing head body, and a glue discharging pipe is fixed inside it. The right end of the glue discharging pipe is embedded in the glue discharging port. The heat insulation layer and the second heat insulation layer are respectively arranged inside the base. The electric heating tube is installed inside the heat insulation layer, and the glue discharging pipe passes through the inside of the electric heating tube. The second electric heating tube is installed at the left end of the second heat insulation layer. The right end of the positioning shaft is fixed to the base, and a spring piece is fixed inside it. The bottom end of the clamping block is fixed to the spring piece, and the top end of the clamping block is clamped with the adjusting part. The right end of the adjusting part is respectively rotatably connected to the base and the positioning shaft.

[0008] Preferably, the adjusting part includes a substrate, a limiting groove, and a connecting channel. The right end of the substrate is rotatably connected to the base, and a limiting groove is opened at its right end. The limiting groove is clamped with the clamping block. A connecting channel is opened inside the bottom end of the substrate.

[0009] More preferably, the connecting channel can be communicated with the glue discharging pipe. When the connecting channel is communicated with the glue discharging pipe, the whole glue discharging device is communicated with the glue discharging port, so as to facilitate the discharge of part of the glue inside the storage cavity, complete the discharge of air bubbles, and avoid abnormal dispensing caused by the existence of air bubbles in the storage cavity, such as the dispensing head body being unable to stop immediately during use. And when the connecting channel intersects with the glue discharging pipe, the channel of the glue discharging device is blocked to achieve sealing, which is convenient for dispensing.

[0010] More preferably, two groups of spring pieces and clamping blocks are provided, which are symmetrically distributed up and down, so as to facilitate the limitation of two stable positions of the adjusting part, make the adjusting part stable after rotating a certain angle, so as to keep the connecting channel inside the adjusting part stable after rotating a certain angle, and then realize the stable communication or stable intersection of the connecting channel and the glue discharging pipe, which is convenient for the stable communication during the glue discharging process and promotes the stable progress of glue discharging.

[0011] More preferably, a sliding strip is arranged at the right end of the substrate, and the sliding strip slides inside the left end of the base, which is convenient for the stable connection between the substrate and the base.

[0012] It is further preferred that the length of the glue discharge tube is longer than the length of the base, which makes it easier to embed the glue discharge tube into the glue discharge port, strengthens the depth of the connection, facilitates the fitting connection with the glue discharge port, and achieves the accuracy of glue discharge. The glue discharge tube is embedded in the glue discharge port, which also plays a role in positioning and installation, making it easier to quickly position the glue discharge device and install it on the left end of the glue dispensing head body.

[0013] It is further preferred that the top of the block is arc-shaped, which structure is more convenient for the circular rotation of the substrate. By rotating the substrate with force, the arc-shaped block is squeezed, driving the block to squeeze the spring sheet inward, thereby facilitating the rotation of the substrate and adjusting the orientation of the connecting channel.

[0014] It is further preferred that the thermal insulation layer and the second thermal insulation layer are both composed of glass fiber wool, have good thermal insulation properties, and are commonly used for shell insulation, so as to fully heat the internal space of the thermal insulation layer and the second thermal insulation layer, that is, the electric heating tube in the thermal insulation layer is used to heat the glue drain hose, so as to heat the glue retained in the glue drain hose after solidification to melt it again, and the second electric heating tube at the left end of the second thermal insulation layer is convenient for heating the boundary between the base and the adjusting part to avoid rotation of the adjusting part. When the connecting channel and the glue drain hose are intertwined, a small amount of glue is squeezed into the boundary between the base and the adjusting part, causing solidification.

[0015] It is further preferred that the spring sheet is made of alloy spring steel, has excellent elasticity and strength, is easy to use, and allows the substrate to be stably clamped on the left end of the base, thereby promoting stable connection or stable interlacing of the connecting channel and the glue discharge pipe, thereby achieving the purpose of connecting glue discharge or interlacing closure.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a glue removal device to facilitate the stable implementation of the glue removal process. The glue removal operation and sealing operation of the glue removal device are realized by connecting and interlacing the connecting channel with the glue removal pipe. The electric heating pipe and the second electric heating pipe are provided to heat the connection between the glue removal pipe, the substrate and the base to prevent the retained glue from solidifying and causing the blockage of the glue removal device. The glue removal device is simple to operate and is not easily blocked by the solidification of the glue, making it impossible to remove the glue.

[0018] The utility model provides an adjustment piece to facilitate the adjustment of the overall connection and interlacing of the glue discharge device. The adjustment method is simple and efficient. By rotating the base plate, the connecting channel is driven to move, so that the connecting channel and the glue discharge pipe are connected or interlaced to achieve glue discharge. The clamping effect of the limit groove and the clamping block ensures the stability of the connecting channel when connected to the glue discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 is a schematic cross-sectional structure diagram of the present utility model;

[0021] Figure 3 is a schematic cross-sectional structure diagram of the degumming device of the present utility model;

[0022] Figure 4 is a schematic cross-sectional structure diagram of the degumming device of the present utility model;

[0023] Figure 5 is a schematic enlarged structure diagram of the details of the degumming device of the present utility model;

[0024] Figure 6 is a schematic internal structure diagram of the adjusting member of the present utility model.

[0025] Wherein: dispensing head body - 1, storage cavity - 2, glue inlet - 3, glue feeding device - 4, degumming port - 5, degumming device - 6, base - 61, heat insulation layer - 62, electric heating tube - 63, degumming tube - 64, second heat insulation layer - 65, second electric heating tube - 66, positioning shaft - 67, spring piece - 68, clamping block - 69, adjusting member - 610, substrate - 6101, limiting groove - 6102, connecting channel - 6103. Specific embodiments

[0026] In order to further explain the technical solution of the present utility model, the following will be elaborated in detail through specific embodiments.

[0027] Please refer to Figure 1-2 , the present utility model provides a degumming device for a circuit board dispensing machine, including a dispensing head body 1, a storage cavity 2, a glue inlet 3, a glue feeding device 4, and a degumming port 5. A storage cavity 2 is arranged inside the dispensing head body 1. A glue inlet 3 is opened at the rear end of the dispensing head body 1. The glue feeding device 4 is installed at the rear end of the dispensing head body 1 and is communicated with the glue inlet 3. The degumming port 5 is arranged at the left end of the dispensing head body 1.

[0028] Please refer to Figure 3-5, the present utility model provides a glue discharging device for a circuit board dispenser. The glue discharging device 6 is installed at the left end of the dispenser head body 1, and its right end is communicated with the glue discharging port 5. The glue discharging device 6 includes a base 61, a heat insulation layer 62, an electric heating tube 63, a glue discharging tube 64, a second heat insulation layer 65, a second electric heating tube 66, a positioning shaft 67, a spring piece 68, a clamping block 69, and an adjusting member 610. The base 61 is installed at the left end of the dispenser head body 1, and the glue discharging tube 64 is fixed inside it. The right end of the glue discharging tube 64 is embedded in the glue discharging port 5. The heat insulation layer 62 and the second heat insulation layer 65 are respectively arranged inside the base 61. The electric heating tube 63 is installed inside the heat insulation layer 62, and the glue discharging tube 64 passes through the inside of the electric heating tube 63. The second electric heating tube 66 is installed at the left end of the second heat insulation layer 65. The right end of the positioning shaft 67 is fixed to the base 61, and the spring piece 68 is fixed inside it. The bottom end of the clamping block 69 is fixed to the spring piece 68, and the top end of the clamping block 69 is clamped with the adjusting member 610. The right end of the adjusting member 610 is rotatably connected to the base 61 and the positioning shaft 67 respectively.

[0029] In this embodiment, two groups of spring pieces 68 and clamping blocks 69 are provided, which are symmetrically distributed up and down, facilitating the limitation of two stable positions of the adjusting member 610, enabling the adjusting member 610 to remain stable after rotating 180 degrees, thereby realizing the stability of the connection channel 6103 inside the adjusting member 610 after rotating 180 degrees, and further realizing the stable connection or stable staggering of the connection channel 6103 and the glue discharging tube 64, facilitating the stable connection during the glue discharging process and promoting the stable progress of glue discharging. The length of the glue discharging tube 64 is longer than the length of the base 61, facilitating the embedding of the glue discharging tube 64 into the glue discharging port 5, strengthening the connection depth, facilitating the fitting connection with the glue discharging port 5, realizing the accuracy of glue discharging, and through the embedding of the glue discharging tube 64 into the glue discharging port 5, it also plays a role in positioning and installation, facilitating the quick positioning of the glue discharging device 6 at the left end of the dispenser head body 1. The top end of the clamping block 69 is arc-shaped, and this structure is more conducive to the circumferential rotation of the substrate 6101. By rotating the substrate 6101 forcefully, it can squeeze the arc-shaped clamping block 69, driving the clamping block 69 to inwardly squeeze the spring piece 68, thereby facilitating the rotation of the substrate 6101 and adjusting the orientation of the connection channel 6103. Among them, the electric heating tube 63 and the second electric heating tube 66 are externally connected to a power supply.

[0030] Please refer to Figure 6 , the present utility model provides a glue discharging device for a circuit board dispenser. The adjusting member 610 includes a substrate 6101, a limiting groove 6102, and a connection channel 6103. The right end of the substrate 6101 is rotatably connected to the base 61, and a limiting groove 6102 is opened at its right end, which is clamped with the clamping block 69. The connection channel 6103 is opened inside the bottom end of the substrate 6101.

[0031] In this embodiment, the connection channel 6103 can communicate with the glue discharge pipe 64. When the connection channel 6103 communicates with the glue discharge pipe 64, the entire glue discharge device communicates with the glue discharge port 5, facilitating the discharge of a part of the glue inside the storage cavity 2, completing the discharge of air bubbles, and avoiding abnormal dispensing caused by the presence of air bubbles in the storage cavity 2, such as the inability to stop immediately when using the dispensing head body 1. Moreover, when the connection channel 6103 intersects with the glue discharge pipe 64, the channel of the glue discharge device is blocked to achieve sealing, facilitating dispensing. A slide bar is provided at the right end of the substrate 6101, and the slide bar slides inside the left end of the base 61, facilitating the stable connection between the substrate 6101 and the base 61.

[0032] Refer to Figures 1-6 , during use, glue is injected into the storage cavity 2 through the glue inlet 3 by the glue feeding device 4. To avoid abnormal situations during the dispensing of the dispenser, glue discharge treatment is required to discharge the air bubbles inside the storage cavity 2, avoiding abnormal situations such as the inability to stop immediately during dispensing due to air bubbles contained in the glue.

[0033] During glue discharge, by rotating the substrate 6101 forcefully, it squeezes the arc-shaped clamping block 69, causing the clamping block 69 to squeeze the spring piece 68 inward, enabling the substrate 6101 to rotate. When the substrate 6101 rotates 180 degrees and engages with the clamping block 69 again, the connection channel 6103 communicates with the glue discharge pipe 64. At this time, the internal channel of the glue discharge device 6 is formed. By applying pressure to the inside of the dispensing head body 1 through an external device, the glue in the storage cavity 2 is discharged from the glue discharge port 5, extruded through the glue discharge pipe 64 and the connection channel 6103. After the glue discharge is completed, by rotating the substrate 6101 again, it engages again after rotation. At this time, the connection channel 6103 is located above and intersects with the glue discharge pipe 64 below. The channel in the glue discharge notice 6 is closed, making the glue discharge part of the storage cavity 2 airtight and not in contact with external air, and then the dispenser can be used to dispense glue on the circuit board.

[0034] To avoid the situation where the internal channel of the glue discharge pipe 64 is blocked due to glue solidification or the connection between the substrate 6101 and the base 61 is fixed due to glue solidification, before glue discharge, an external power supply can be used to make the electric heating tube 63 and the second electric heating tube 66 work, transferring heat to the area inside the heat insulation layer 62 and the left end area of the second heat insulation layer 65, promoting heating in the area inside the glue discharge pipe 64 and the connection area between the substrate 6101 and the base 61, melting the solidified glue, and thus resuming operation, effectively avoiding the situation where the glue discharge process is blocked due to glue solidification.

[0035] The control method of the present invention is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art, and the present invention mainly protects mechanical devices, so the control method and wiring layout of the present invention will not be explained in detail.

[0036] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of power also belongs to the common knowledge in the art. Moreover, the present utility model is mainly used to protect mechanical devices. Therefore, the control mode and circuit connection of the present utility model will not be explained in detail herein.

[0037] The above are only the preferred examples of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A glue discharging device for a circuit board dispensing machine, comprising a dispensing head body (1), a storage cavity (2), a glue inlet (3), a glue feeding device (4), and a glue discharging port (5). A storage cavity (2) is arranged inside the dispensing head body (1). A glue inlet (3) is opened at the rear end of the dispensing head body (1). The glue feeding device (4) is installed at the rear end of the dispensing head body (1) and is communicated with the glue inlet (3). The glue discharging port (5) is arranged at the left end of the dispensing head body (1). It is characterized in that: It further comprises a glue discharging device (6). The glue discharging device (6) is installed at the left end of the dispensing head body (1), and its right end is communicated with the glue discharging port (5). The glue discharging device (6) comprises a base (61), a heat insulation layer (62), an electric heating tube (63), a glue discharging pipe (64), a second heat insulation layer (65), a second electric heating tube (66), a positioning shaft (67), a spring piece (68), a clamping block (69), and an adjusting part (610). The base (61) is installed at the left end of the dispensing head body (1), and a glue discharging pipe (64) is fixed inside it. The right end of the glue discharging pipe (64) is embedded into the glue discharging port (5). The heat insulation layer (62) and the second heat insulation layer (65) are respectively arranged inside the base (61). The electric heating tube (63) is installed inside the heat insulation layer (62). The glue discharging pipe (64) penetrates through the inside of the electric heating tube (63). The second electric heating tube (66) is installed at the left end of the second heat insulation layer (65). The right end of the positioning shaft (67) is fixed to the base (61), and a spring piece (68) is fixed inside it. The bottom end of the clamping block (69) is fixed to the spring piece (68). The top end of the clamping block (69) is clamped with the adjusting part (610). The right end of the adjusting part (610) is rotatably connected to the base (61) and the positioning shaft (67).

2. The glue discharging device for a circuit board dispensing machine according to claim 1, wherein: The adjusting part (610) comprises a substrate (6101), a limiting groove (6102), and a connecting channel (6103). The right end of the substrate (6101) is rotatably connected to the base (61), and a limiting groove (6102) is opened at its right end. The limiting groove (6102) is clamped with the clamping block (69). A connecting channel (6103) is opened inside the bottom end of the substrate (6101).

3. The glue discharging device for a circuit board dispensing machine according to claim 2, characterized in that: The connecting channel (6103) can be communicated with the glue discharging pipe (64).

4. The glue discharging device for a circuit board dispensing machine according to claim 1, wherein: Two groups of the spring piece (68) and the clamping block (69) are provided and are symmetrically distributed up and down.

5. The glue discharging device for a circuit board dispensing machine according to claim 2, wherein: A sliding strip is arranged at the right end of the substrate (6101), and the sliding strip slides inside the left end of the base (61).

6. The glue discharging device for a circuit board dispensing machine according to claim 1, characterized in that: The length of the glue discharging pipe (64) is longer than the length of the base (61).

7. The glue discharging device for a circuit board dispensing machine according to claim 1, characterized in that: The top end of the clamping block (69) is arc-shaped.

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