Screw type precise quantifying device

Abstract

The utility model relates to the technical field of dispensing equipment, and discloses a screw type precise quantifying device which comprises a bearing seat, a flow channel is installed on the bottom side of the bearing seat, a screw is arranged in the bearing seat and the flow channel, a spacer bush is arranged on the surface of the screw, bearings are arranged at the two ends of the spacer bush, and the bearing seat and the flow channel are arranged in the bearing seat. A sealing ring is arranged on the surface of the screw rod, a gland is arranged at the top of the bearing seat, a glue inlet is formed in the surface of one side of the runner, and a flow guide groove is formed in one end of the glue inlet. According to the screw type precise quantifying device, the screw is adopted for pushing glue, the flow and the glue outlet position of the glue can be precisely controlled, the glue dispensing precision and stability are guaranteed, different glue dispensing requirements can be met by adjusting the rotating speed and the feeding amount of the screw, and the screw type precise quantifying device is suitable for various glue dispensing processes and glue with various viscosities; the method can be applied to different fields of electronic packaging, component fixing, line protection and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing equipment, in particular to a screw type precision quantitative device. Background Art

[0002] Glue dispensing equipment is generally divided into loading devices, glue dispensing devices and unloading devices. It is mainly used to control liquid adhesives so that the liquid adhesives stored in the glue dispensing machine can be dispensed to the positions where components need to be bonded during the production process of the product. Glue dispensing equipment is widely used in the production process of electronic products.

[0003] At present, valves are often needed to adjust the glue flow rate during dispensing operations. Ordinary valves have the following problems when used:

[0004] (1) The sealing performance is relatively poor and is not suitable for conveying high-pressure fluids;

[0005] (2) Noise and vibration may be generated during flow adjustment;

[0006] (3) It is easy to cause blockage when conveying high viscosity, easy to condense, particles and other media. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a screw-type precision metering device, which has good sealing performance and can withstand high pressure; it has a simple structure and is easy to maintain; when the fluid passes through the screw rotor, there will be no rotation and impact, thus there is no noise or vibration; it can transport various high-viscosity, easily condensed, particle-containing and other media, thus solving the problems raised in the background technology.

[0008] The utility model provides the following technical solution: a screw-type precision dosing device, comprising a bearing seat, a flow channel is installed on the bottom side of the bearing seat, a screw is arranged inside the bearing seat and the flow channel, a spacer is arranged on the surface of the screw, bearings are arranged at both ends of the spacer, a sealing ring is arranged on the surface of the screw, a pressure cover is arranged on the top of the bearing seat, a glue inlet is arranged on one side surface of the flow channel, a guide groove is arranged at one end of the glue inlet, a glue outlet end is arranged at one end of the guide groove, and a base screw is arranged at the other end of the guide groove.

[0009] Preferably, the flow channel is fixedly connected to the bearing seat, the screw is rotatably connected to the flow channel and the bearing seat, the spacer sleeve is sleeved on the surface of the screw, the bearing is sleeved on the surface of the screw, the sealing ring is sleeved on the surface of the screw and fixedly connected to the inner wall of the flow channel, the pressure cover is fixedly connected to the upper surface of the bearing seat, the glue inlet is opened on one side surface of the flow channel, the guide groove is opened inside the flow channel, the glue outlet end is opened inside the flow channel, the guide groove, the guide groove and the glue outlet end are in communication with each other, and the internal thread of the guide groove is connected with a Kimi screw.

[0010] Preferably, a thread is formed on the bottom surface of the screw, the bottom of the screw is located inside the glue outlet end, and the inner wall of the glue outlet end is in contact with the thread of the screw.

[0011] Preferably, mounting grooves are provided at both ends of the upper surface of the bearing seat, and screw grooves are provided at both ends of the upper surface of the flow channel. The screw grooves are located directly below the mounting grooves, and fixing bolts are installed inside the mounting grooves with one end of the bolts located inside the screw grooves.

[0012] Preferably, the pressure cover is fixedly connected to the upper surface of the bearing seat by screws, and the bottom of the pressure cover is in contact with the upper surface of the bearing.

[0013] Preferably, the guide groove and the glue outlet end are arranged in a T shape, and the Kimi screw is located at an outlet end of the guide groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The screw-type precision dosing device uses a screw to push the glue, which can accurately control the flow rate and dispensing position of the glue to ensure the accuracy and stability of dispensing.

[0016] 2. This screw-type precision dosing device can achieve different dispensing requirements by adjusting the rotation speed and feed amount of the screw, and is suitable for the dispensing process of various glues.

[0017] 3. This screw-type precision dosing device can be used for glues of various viscosities and can be used in different fields such as electronic packaging, component fixation, circuit protection, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0019] Figure 2 This is a schematic diagram of the internal structure of the device of the utility model;

[0020] Figure 3 This is a schematic diagram of the screw structure of the utility model.

[0021] In the figure: 1. bearing seat; 2. flow channel; 3. screw; 4. spacer; 5. bearing; 6. sealing ring; 7. pressure cover; 8. glue inlet; 9. guide groove; 10. glue outlet; 11. base screw; 12. installation groove; 13. screw groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3 A screw-type precision dosing device comprises a bearing seat 1, a flow channel 2 is installed on the bottom side of the bearing seat 1, a screw 3 is arranged inside the bearing seat 1 and the flow channel 2, a spacer 4 is arranged on the surface of the screw 3, bearings 5 ​​are arranged at both ends of the spacer 4, a sealing ring 6 is arranged on the surface of the screw 3, a pressure cover 7 is arranged on the top of the bearing seat 1, a glue inlet 8 is arranged on the surface of one side of the flow channel 2, a guide groove 9 is arranged at one end of the glue inlet 8, a glue outlet 10 is arranged at one end of the guide groove 9, and a base screw 11 is arranged at the other end of the guide groove 9, and a sealing effect can be achieved through the sealing ring 6 to prevent glue from overflowing.

[0024] Among them; the flow channel 2 is fixedly connected with the bearing seat 1, the screw 3 is rotatably connected with the flow channel 2 and the bearing seat 1, the spacer 4 is sleeved on the surface of the screw 3, the bearing 5 is sleeved on the surface of the screw 3, the sealing ring 6 is sleeved on the surface of the screw 3 and is fixedly connected to the inner wall of the flow channel 2, the pressure cover 7 is fixedly connected to the upper surface of the bearing seat 1, the glue inlet 8 is opened on one side surface of the flow channel 2, the guide groove 9 is opened inside the flow channel 2, and the glue outlet end 10 is opened inside the flow channel 2. The guide groove 9, the guide groove 9, and the glue outlet end 10 are mutually circulated, and the internal thread of the guide groove 9 is connected with a base screw 11. The screw 3 is used to push the glue, which can accurately control the flow rate and glue outlet position of the glue, ensure the accuracy and stability of glue dispensing, and by adjusting the rotation speed and feed amount of the screw 3, different glue dispensing requirements can be achieved, which is suitable for various glue dispensing processes.

[0025] Among them; a thread is provided on the bottom surface of the screw 3, and the bottom of the screw 3 is located inside the glue outlet end 10, and the inner wall of the glue outlet end 10 is fitted with the thread of the screw 3. As the screw 3 rotates, the thread on the screw 3 pushes the glue in the guide groove 9 into the glue outlet end 10, which can drive the glue to flow along the glue inlet 8, the guide groove 9, and the glue outlet end 10, and finally reaches the outlet of the glue outlet end 10.

[0026] Among them; installation grooves 12 are opened at both ends of the upper surface of the bearing seat 1, and screw grooves 13 are opened at both ends of the upper surface of the flow channel 2. The screw grooves 13 are located directly below the installation grooves 12. Bolts are installed inside the installation grooves 12 and one end of the bolts is located inside the screw grooves 13. The bearing seat 1 is fixedly connected to the flow channel 2 by bolts. The two can be disassembled by unscrewing the bolts, which is convenient for subsequent maintenance.

[0027] Among them, the pressure cover 7 is fixedly connected to the upper surface of the bearing seat 1 by screws, the bottom of the pressure cover 7 is fitted with the upper surface of the bearing 5, the bearing 5 and the spacer sleeve 4 are assembled with the screw 3, and then the pressure cover 7 is tightened and fixed by screws, which can increase the strength and stability of the screw 3.

[0028] Among them, the guide groove 9 and the glue outlet end 10 are arranged in a T shape, and the Kimi screw 11 is located at one end of the guide groove 9. One end of the guide groove 9 can be blocked by the Kimi screw 11, so that the glue entering the guide groove 9 flows to the glue outlet end 10.

[0029] Working principle: first, glue is stored in the glue storage cylinder, and the supply pressure is controlled by the pressure stabilizer. When the glue dispensing machine starts working, the glue is pushed from the glue storage cylinder to the glue inlet 8, and then the glue flows into the guide groove 9. The screw 3 is driven to rotate by an external drive device, and the thread on the screw 3 pushes the glue in the guide groove 9 to the glue outlet 10. As the screw 3 rotates, the glue can be driven to flow along the glue inlet 8, the guide groove 9, and the glue outlet 10, and finally reaches the outlet of the glue outlet 10. By adjusting the rotation speed and feed amount of the screw 3, the flow rate of glue and the accuracy of glue outlet can be controlled. Different glue dispensing requirements can be met by adjusting the parameters, and the Z-axis rotating screw is used for material transportation, which solves the problem of pulsation caused by the contractibility of the gas and inconsistent glue output in the pneumatic dispensing method. The spacer sleeve 4 and the bearing 5 can increase the strength and stability of the screw 3 when it rotates.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw type precision dosing device, comprising a bearing seat (1), characterized in that: A flow channel (2) is installed on the bottom side of the bearing seat (1), a screw (3) is arranged inside the bearing seat (1) and the flow channel (2), a spacer (4) is arranged on the surface of the screw (3), bearings (5) are arranged at both ends of the spacer (4), a sealing ring (6) is arranged on the surface of the screw (3), a pressure cover (7) is arranged on the top of the bearing seat (1), a glue inlet (8) is arranged on one side surface of the flow channel (2), a guide groove (9) is arranged at one end of the glue inlet (8), a glue outlet (10) is arranged at one end of the guide groove (9), and a base screw (11) is arranged at the other end of the guide groove (9).

2. The screw type precision dosing device according to claim 1, characterized in that: The flow channel (2) is fixedly connected to the bearing seat (1), the screw (3) is rotatably connected to the flow channel (2) and the bearing seat (1), the spacer (4) is sleeved on the surface of the screw (3), the bearing (5) is sleeved on the surface of the screw (3), the sealing ring (6) is sleeved on the surface of the screw (3) and is fixedly connected to the inner wall of the flow channel (2), the pressure cover (7) is fixedly connected to the upper surface of the bearing seat (1), the glue inlet (8) is opened on one side surface of the flow channel (2), the guide groove (9) is opened inside the flow channel (2), the glue outlet end (10) is opened inside the flow channel (2), the guide groove (9), the guide groove (9) and the glue outlet end (10) are in communication with each other, and the internal thread of the guide groove (9) is connected with a base screw (11).

3. The screw type precision dosing device according to claim 1, characterized in that: The bottom surface of the screw (3) is provided with threads, the bottom of the screw (3) is located inside the glue outlet end (10), and the inner wall of the glue outlet end (10) is in contact with the threads of the screw (3).

4. The screw type precision dosing device according to claim 1, characterized in that: Both ends of the upper surface of the bearing seat (1) are provided with mounting grooves (12), and both ends of the upper surface of the flow channel (2) are provided with screw grooves (13), the screw grooves (13) are located directly below the mounting grooves (12), and a fixing bolt is installed inside the mounting groove (12) and one end of the bolt is located inside the screw groove (13).

5. The screw type precision dosing device according to claim 1, characterized in that: The pressure cover (7) is fixedly connected to the upper surface of the bearing seat (1) by means of screws, and the bottom of the pressure cover (7) is in contact with the upper surface of the bearing (5).

6. The screw type precision dosing device according to claim 1, characterized in that: The guide groove (9) and the glue outlet end (10) are arranged in a T shape, and the base screw (11) is located at an outlet end of the guide groove (9).

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