Needle replacing mechanism of automatic dispensing machine

Abstract

The utility model discloses an automatic dispensing machine needle replacing mechanism which comprises a dispensing machine body, a dispensing tube and an abutting driving unit, a needle body is inserted into the dispensing tube, the abutting driving unit comprises a driving block, a sliding block and an arc-shaped plate, a mounting plate is arranged on the dispensing machine body, the driving block is connected to the mounting plate in a sliding mode, and the driving block is connected to the arc-shaped plate in a sliding mode. The arc-shaped plate is slidably connected to the sliding block, a first elastic unit is arranged between the arc-shaped plate and the sliding block, the sliding block keeps sliding by driving the driving block to keep sliding, and then the arc-shaped plate is driven to abut against the outer wall of the glue dripping pipe and move along the glue dripping pipe to abut against the needle head body. According to the needle replacing mechanism of the automatic dispensing machine, the arc-shaped plate on the outer wall of the sliding block is driven by the sliding block to abut against the glue dripping pipe, and the arc-shaped plate is driven to keep sliding along the glue dripping pipe and abut against the needle body, so that the needle body is separated from the glue dripping pipe, and at the moment, the arc-shaped plate can scrape a small amount of residual glue in the glue dripping pipe; and pollution caused by glue dripping is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to dispensing machine production technical field, concretely relates to a kind of automatic dispensing machine needle head replacement mechanism. BACKGROUND

[0002] Automatic dispensing machine is a kind of professional equipment that replaces manual dispensing, and is widely used in industrial production. For example, integrated circuits, semiconductor packaging, printed circuit boards, color liquid crystal screens, electronic components, electronic components, automobile components and the like.

[0003] According to the utility model patent application with announcement number CN213245032U and announcement date 2021-05-21, a dispensing machine is disclosed, which comprises a wafer heating device, a wafer to be dispensed is carried above the wafer heating device; a dispensing machine body can dispense the wafer; an infrared detection module is arranged on the dispensing machine body, the infrared detection module can detect the temperature of the wafer, and the infrared detection module cooperates with the wafer heating device to increase the temperature of the wafer by the wafer heating device when the temperature of the wafer is lower than the set temperature. The main technical effect is that the infrared detection module can detect the temperature of the wafer, and the temperature of the wafer is increased when the temperature of the wafer is lower than the set temperature. The dispensing machine has the advantages of high dispensing quality, simple structure and the like.

[0004] In the prior art, the needle head of the automatic dispensing machine needs to be replaced after a period of production. When the needle head is replaced, the glue remaining between the dispensing machine and the needle head is easy to leak out, which can cause pollution during the replacement of the needle head. Therefore, an automatic dispensing machine needle head replacement mechanism is proposed to solve the problem of glue leakage between the dispensing machine and the needle head during the replacement of the needle head. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an automatic dispensing machine needle head replacement mechanism to solve the problem of glue leakage between the dispensing machine and the needle head during the replacement of the needle head.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides an automatic dispensing machine needle replacement mechanism, including the dispensing machine body, be provided with the glue dropping pipe on the dispensing machine body, the needle body is inserted to the glue dropping pipe, still include the abutment drive unit of setting up on the dispensing machine body, the abutment drive unit includes drive block, sliding block and arc plate, be provided with the mounting plate on the dispensing machine body, drive block slidingly connects in mounting plate, arc plate slidingly connects in sliding block, first elastic unit is arranged between arc plate and sliding block, through drive drive block keeps sliding, make sliding block keep sliding, in turn drive arc plate and glue dropping pipe outer wall abut and along glue dropping pipe and move and needle body abut.

[0008] As preferred, the mounting plate outer wall is provided with an inclined sliding groove, the drive block is slidingly connected to the inclined sliding groove, the mounting plate is slidingly connected with a drive plate, the drive plate is fixedly installed with a positioning plate, the top of the drive block is slidingly connected to the positioning plate, and the outer wall of the drive block is provided with an abutting block.

[0009] As preferred, the outer wall of one side of the drive block is fixedly installed with a fixed plate, the fixed plate is fixedly installed with a guide rod, and the outer wall of one side of the sliding block is fixedly installed with a guide plate.

[0010] As preferred, the bottom of the arc plate is provided with a wedge surface, and the top of the arc plate is movably installed with adsorbing cotton.

[0011] As preferred, the outer wall of the mounting plate is fixedly installed with a drive cylinder, and the output end of the drive cylinder is connected with the drive plate.

[0012] In the above technical solution, the automatic dispensing machine needle replacement mechanism has the following beneficial effects:

[0013] The utility model discloses a kind of automatic dispensing machine needle replacement mechanism, with the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0015] Figure 1 The overall structure schematic diagram provided by the embodiment of the utility model;

[0016] Figure 2 The abutment driving unit structure schematic diagram provided by the embodiment of the utility model;

[0017] Figure 3 The A place amplification structure schematic diagram provided by the embodiment of the utility model;

[0018] Figure 4 The structure schematic diagram of the plate connecting body and the compression member provided by the embodiment of the utility model.

[0019] Mark explanation:

[0020] 1, glue dropping machine body;2, glue dropping pipe;3, needle body;4, abutment driving unit;41, driving block;42, sliding block;43, arc plate;431, wedge surface;432, adsorption cotton;44, abutment block;45, fixed plate;46, guide rod;47, guide plate;5, mounting plate;51, inclined sliding groove;52, positioning plate;53, driving plate;6, driving cylinder. Specific implementation

[0021] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0022] Please refer to Figure 1 -4, a kind of automatic glue dropping machine needle replacement mechanism, including glue dropping machine body 1, glue dropping pipe 2 is provided on the glue dropping machine body 1, needle body 3 is inserted in glue dropping pipe 2, still include the abutment driving unit 4 being set to glue dropping machine body 1, the abutment driving unit 4 includes driving block 41, sliding block 42 and arc plate 43, mounting plate 5 is provided on the glue dropping machine body 1, the driving block 41 is slidably connected in mounting plate 5, the arc plate 43 is slidably connected in sliding block 42, first elastic unit is arranged between the arc plate 43 and sliding block 42, by driving driving block 41 keeps sliding, make sliding block 42 keep sliding, in turn drive arc plate 43 and glue dropping pipe 2 outer wall abut and along glue dropping pipe 2 move and needle body 3 abut.

[0023] Specifically, glue dropping machine body 1 is conventional automatic glue dropping machine in prior art, glue dropping pipe 2 is provided on glue dropping machine body 1, needle body 3 is inserted in glue dropping pipe 2, glue flows into needle body 3 through glue dropping pipe 2, finally carries out glue dropping treatment in the position needed through needle body 3.

[0024] The abutting driving unit 4 is arranged on the glue dispenser body 1, specifically, the abutting driving unit 4 comprises a driving block 41, a sliding block 42 and an arc-shaped plate 43, a mounting plate 5 is fixedly installed on the outer wall of the glue dispenser body 1, and the mounting plate 5 is specifically in a shape of several, a plurality of inclined sliding grooves 51 are formed in the outer wall of the mounting plate 5, specifically, the number of the inclined sliding grooves 51 is several, the plurality of inclined sliding grooves 51 are symmetrically distributed on the two sides of the mounting plate 5, and the number of the driving blocks 41 is preferably two, the two driving blocks 41 are respectively slidably connected to the inclined sliding grooves 51 on the two sides of the mounting plate 5, a sliding rail is arranged on the outer wall of the driving block 41, the sliding block 42 is slidably connected to the driving block 41 through the sliding rail, a driving plate 53 is slidably connected to the mounting plate 5, the end portion of the driving plate 53 is fixedly installed with a positioning plate 52, and the top of the driving block 41 is slidably connected to the positioning plate 52, therefore, when the driving plate 53 keeps moving on the glue dispenser body 1, the driving block 41 can keep moving along the inclined sliding groove 51 through the driving plate 53, and then the two driving blocks 41 can keep moving towards each other or away from each other, the abutting block 44 is fixedly installed on the outer wall of the driving block 41, the fixed plate 45 is fixedly installed on the outer wall of the driving block 41 on one side, the guide rod 46 is fixedly installed on the fixed plate 45, the guide plate 47 is fixedly installed on the outer wall of the sliding block 42 on one side, the guide plate 47 is slidably connected with the guide rod 46, the second elastic unit is sleeved on the outer wall of the guide rod 46, and specifically, the second elastic unit is a compression spring, and the sliding block 42 moves to one side through the compression spring. The arc-shaped plate 43 is slidably connected to the outer wall of the sliding block 42, and the first elastic unit is arranged between the arc-shaped plate 43 and the sliding block 42. The first elastic unit is a compression spring.

[0025] The wedge surface 431 is arranged at the bottom of the arc-shaped plate 43, the adsorbing cotton 432 is movably installed at the top of the arc-shaped plate 43, the adsorbing cotton 432 can move on the outer wall of the glue dropping pipe 2, when the arc-shaped plate 43 abuts against the needle body 3 and separates the needle body 3 from the glue dropping pipe 2, at this time, the adsorbing cotton 432 contacts the glue dropping pipe 2, and the internal glue is prevented from dropping.

[0026] The driving cylinder 6 is fixedly installed on the outer wall of the mounting plate 5, and the output end of the driving cylinder 6 is fixedly connected to the driving plate 53, so that the driving plate 53 can keep moving on the glue dispenser body 1 through the driving cylinder 6.

[0027] The utility model discloses, through the drive abutting drive unit 4 drive block 41 keeps moving, further through drive block 41 drive abutting block 44 and sliding block 42 abut, drive sliding block 42 keeps sliding, and through sliding block 42 drive its outer wall on arc plate 43 and drop glue pipe 2 abut, drive arc plate 43 along drop glue pipe 2 keep sliding, and abut with needle body 3, make needle body 3 and drop glue pipe 2 separate, at this time arc plate 43 can scrape the small amount of glue that remains inside drop glue pipe 2, prevent the pollution caused by glue drop, can replace needle body 3 conveniently, can improve production efficiency.

[0028] Working principle:

[0029] When needle body 3 needs to be replaced, drive cylinder 6 drives mounting plate 5 to keep moving downwards;

[0030] When drive plate 53 keeps moving downwards, push two drive blocks 41 respectively keep moving towards each other in inclined slide groove 51, when drive block 41 keeps moving downwards, because drive block 41 keeps connected with mounting plate 5 through inclined slide groove 51, therefore, sliding block 42 slidingly connected on drive block 41 under the action of drive block 41 are close to each other, make arc plate 43 on sliding block 42 abut with drop glue pipe 2, and continue to move downwards along drop glue pipe 2, make arc plate 43 abut with needle body 3, and push needle body 3 and drop glue pipe 2 apart, after separating, through the abutment of adsorbing cotton 432 installed on arc plate 43 and the outer wall of the end of drop glue pipe 2, wipe the small amount of glue remaining inside drop glue pipe 2, prevent the pollution caused by drop;

[0031] When new needle body 3 needs to be inserted into drop glue pipe 2, make the top of needle body 3 abut with wedge surface 431 set at the bottom of arc plate 43, drive two arc plates 43 to separate, then needle body 3 can be inserted into drop glue pipe 2, subsequently, drive cylinder 6 resets, drive plate 53 and drive block 41 reset through the reset of drive cylinder 6, sliding block 42 resets through the reset of drive block 41.

[0032] The first elastic unit and the second elastic unit mentioned in the paper meet the technical requirements of the technical scheme of the utility model.

[0033] Those skilled in the art can understand that other similar connection methods can also achieve the utility model. For example, welding, bonding or screwing and the like.

[0034] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. An automatic dispensing machine needle replacement mechanism, comprising a dispensing machine body (1), a glue dropping pipe (2) is arranged on the dispensing machine body (1), a needle body (3) is inserted into the glue dropping pipe (2), characterized in that, Also include the abutment drive unit (4) set on the glue dispenser body (1), the abutment drive unit (4) includes drive block (41), sliding block (42) and arc plate (43), the glue dispenser body (1) is provided with mounting plate (5), the drive block (41) is slidably connected to mounting plate (5), the arc plate (43) is slidably connected to sliding block (42), the arc plate (43) and sliding block (42) are provided with first elastic unit, by driving drive block (41) to keep sliding, make sliding block (42) keep sliding, in turn drive arc plate (43) and drop glue pipe (2) outer wall abutment and along drop glue pipe (2) and needle head body (3) abutment.

2. The needle changing mechanism of an automatic dispensing machine according to claim 1, wherein, The outer wall of the mounting plate (5) is provided with an inclined sliding groove (51), and the drive block (41) is slidably connected to the inclined sliding groove (51). The drive plate (53) is slidably connected to the mounting plate (5), and the positioning plate (52) is fixedly installed on the drive plate (53). The top of the drive block (41) is slidably connected to the positioning plate (52), and the outer wall of the drive block (41) is provided with an abutment block (44).

3. The needle changing mechanism of an automatic dispensing machine according to claim 2, wherein, The outer wall of the drive block (41) on one side is fixedly installed with a fixed plate (45), and the fixed plate (45) is fixedly installed with a guide rod (46). The outer wall of the sliding block (42) on one side is fixedly installed with a guide plate (47), and the guide plate (47) is slidably connected to the guide rod (46).

4. The needle changing mechanism of an automatic dispensing machine according to claim 1, wherein, The bottom of the arc plate (43) is provided with a wedge surface (431), and the top of the arc plate (43) is movably installed with an adsorbing cotton (432).

5. The needle changing mechanism of an automatic dispensing machine according to claim 2, wherein, The outer wall of the mounting plate (5) is fixedly installed with a drive cylinder (6), and the output end of the drive cylinder (6) is connected with the drive plate (53).

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