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Dispensing head and automatic dispensing machine provided with dispensing head

A technology of a dispensing head and a dispensing machine, which is applied to a device for coating liquid on a surface, a coating, etc., can solve the problem of high manufacturing cost of the dispensing head, and achieve the effects of simple structure, low processing cost, and avoiding dripping.

Pending Publication Date: 2017-05-31
ZHEJIANG INT MARITIME COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the dispensing head needs periodic and discontinuous dispensing during the operation of the glue injection machine, which requires high precision of the cylinder or screw and its automatic control device, so the manufacturing cost of the existing dispensing head is very high. high

Method used

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  • Dispensing head and automatic dispensing machine provided with dispensing head
  • Dispensing head and automatic dispensing machine provided with dispensing head
  • Dispensing head and automatic dispensing machine provided with dispensing head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In the first embodiment, such as figure 1 , figure 2 As shown, a dispensing head includes a valve body 11, one end of the valve body 11 is provided with a needle 12, the other end is provided with a self-resetting piston 13, and the needle 12 is provided with a No. 1 one-way valve 14. The self-resetting piston 13 is provided with an impact device 15 on the outside and a drive device. The valve body 1 is provided with a rubber pipe 16; the self-resetting piston 13 has the first position for dispensing glue when it is hit by the impact device 15, and a The second position. The first embodiment uses the self-resetting piston 13 to replace the valve needle or screw. First, the structure is simple, the processing cost is low, and the second is that it can isolate the glue and the power device such as the cylinder or motor to extend the life of the equipment. In addition, the No. 1 check valve 14 can also Effectively avoid dripping during the dispensing process.

[0027] In th...

Embodiment 2

[0035] In the second embodiment, such as Image 6 As shown, the self-resetting piston 13 includes a piston plate 131 and an elastic member 132, and the elastic member 132 is connected to the outer side of the piston plate 131. The elastic member 132 in the second embodiment can be a cylindrical spring, a torsion spring or other forms of springs.

[0036] The present invention, such as Figure 7 Shown is the working flow chart of the automatic dispenser. In addition, on this basis, the automatic dispensing machine can also increase the automatic positioning function, through the camera device 8 or other devices to find the first working hole 41, automatically adjust the positioning, and then press Image 6 As shown, the glue is dispensed following the trace.

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PUM

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Abstract

The invention discloses a dispensing head and an automatic dispensing machine, which are used to reduce the cost of the dispensing machine under the premise that the dispensing accuracy is guaranteed. The dispensing head comprises a valve body, wherein a needle is arranged at one end of the valve body and a self-resetting piston is arranged at the other end of the valve body, the needle is provided with a first one-way valve, the self-resetting piston is provided with an impact device on the outside and equipped with a driving device, and a glue inlet pipe is arranged on the valve body; and the self-resetting piston has a first position for dispensing when impacted by the impact device, and a second position during resetting. According to the dispensing head, the self-resetting piston is utilized to replace a valve needle or a screw rod, which has the advantages that: first, the structure is simple and the processing cost is low, and second, the glue is isolated from an air cylinder or a motor and other power devices, so as to prolong the service life of equipment; in addition, with the first one-way valve, a glue leakage phenomenon in the dispensing process can be effectively avoided.

Description

Technical field [0001] The invention relates to the technical field of dispensing processing, in particular to a dispensing head and an automatic dispensing machine equipped with the dispensing head. Background technique [0002] Dispenser is an automatic equipment that controls fluids, and applies fluids to the surface or inside of the product. It is mainly used to accurately point, inject, and drop liquids such as glue and paint onto a certain position of each product. . [0003] The dispensing head or dispensing valve is the core device of the dispensing machine. The dispensing head can be divided into pneumatic and electric according to the working principle. The former uses a piston or valve needle, and the latter uses a screw to rotate the glue. Because the dispensing head needs periodic and intermittent dispensing when the glue injection machine is running, this places high requirements on the accuracy of the cylinder or screw, and its automatic control device, so the manuf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/02
CPCB05C5/0225
Inventor 何琪
Owner ZHEJIANG INT MARITIME COLLEGE