CN210334241U

CN210334241U - Automatic wax injection machine

Info

Publication number: CN210334241U
Application number: CN201921000615.9U
Authority: CN
Inventors: 吕诗
Original assignee: Shenzhen Jinjiuyuan Jewelry Co ltd
Current assignee: Shenzhen Jinjiuyuan Jewelry Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-04-17
Anticipated expiration: 2029-06-27

Abstract

The utility model belongs to the technical field of the technique of injection moulding equipment and specifically relates to an automatic annotate wax machine is related to, it includes the base, is located the support column on the base, is located the backup pad at support column top, installs the cylinder in the backup pad, and the cylinder includes the piston rod, and the piston rod runs through install the mould in the backup pad, the mould is provided with annotates the wax mouth, and the one end of piston rod is installed and is compressed tightly the pressure strip of mould, the one end of piston rod are provided with the pipe box, and the fixed axle is installed to the pipe box and piston rod threaded connection, the pipe box one end of keeping away from the piston rod, and the fixed axle is installed first through-hole has been seted up to the fixed axle at the top of pressure strip. The sleeve is connected with the piston rod through threads, the total length of the piston rod can be adjusted within a certain limit by rotating the sleeve, and the device is convenient to be suitable for moulds with different mould closing heights.

Description

Automatic wax injection machine

Technical Field

The utility model belongs to the technical field of injection moulding equipment's technique and specifically relates to an automatic annotate wax machine is related to.

Background

At present, the lost wax casting technology is widely applied, and is mostly applied to the lost wax casting technology in the casting process of gold and silver ornaments. Lost wax casting requires the formation of a wax pattern by injecting a liquid wax into a mold, which requires the use of a wax injection machine.

With the development of the technology, the functions of the existing wax injection machine are more and more diversified. In the utility model discloses a chinese utility model patent that the publication number is CN205147219U, an automatic wax injection machine is disclosed, it includes the cylinder, fixed guide pillar, go up the mould, the bed die, the base and install the bed die fixed plate on the base, fixed guide pillar installs on the bed die fixed plate, the cylinder is installed on the cylinder fixed plate, the cylinder fixed plate sets up the top at fixed guide pillar, the cylinder is equipped with the cylinder piston rod, the lower part of cylinder piston rod is equipped with the detachable loop bar, it passes through mould fly leaf and loop bar end-to-end connection to go up the mould, the piston rod of cylinder drives the mould through last mould fly leaf, realize the motion of vertical direction along fixed guide pillar, the bed die is installed on the bed die fixed plate. This automatic wax injection machine connects the loop bar through installation detachable extension, makes the length of cylinder rod can use according to the quick effectual installation of the mould homoenergetic of different compound die heights, owing to the compound die height that need not the sharp increase mould, can effectual saving mould material, reduces the mould and opens the system cost, after demolising the loop bar, also can normal use.

The above prior art solutions have the following drawbacks: the length of the sleeve rod is fixed, and the sleeve rod can only be added with fixed length when being installed, and cannot be adjusted. The whole telescopic range of the piston rod and the loop bar is small, and the use of various moulds with large mould closing height difference is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic annotate wax machine. The adjustable height adjusting device has the advantages that the total length of the piston rod can be adjusted within a certain limit by adding the height adjusting device, and the adjustable height adjusting device is convenient to be suitable for moulds with different mould closing heights.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an automatic wax injection machine, includes the base, is located support column on the base, be located the backup pad at support column top, install the cylinder in the backup pad, the cylinder includes the piston rod, the piston rod runs through the backup pad, install the mould on the base, can compress tightly is installed to the one end of piston rod the pressure strip of mould, the one end of piston rod is provided with the pipe box, the pipe box with piston rod threaded connection, the pipe box is kept away from the fixed axle is installed to the one end of piston rod, the fixed axle is installed the top of pressure strip.

By adopting the technical scheme, the pipe sleeve is rotated through the arrangement of the threaded connection between the pipe sleeve and the piston rod, so that the total length of the piston rod can be adjusted within a certain limit, and the total length of the piston rod can be adjusted by rotating the pipe sleeve according to different die closing heights of the die, so that the die is convenient to adapt to dies with different die closing heights. Therefore, the installation and production of the dies with different die closing heights are facilitated, and the manufacturing cost of the die with the small die closing height is reduced.

Preferably, the pressing plate is provided with a sliding hole, the supporting column penetrates through the sliding hole, and the pressing plate is connected with the supporting column in a sliding manner.

Through adopting above-mentioned technical scheme, establish through the pressure strip cover and slide on the support column, the support column has the effect of direction to the slip of pressure strip for the gliding more steady of pressure strip has made things convenient for pressure strip compression die.

Preferably, a sliding sleeve is installed in the sliding hole, and the supporting column penetrates through the sliding sleeve.

Through adopting above-mentioned technical scheme, the area of sleeve and support column is greater than the area that the pressure strip is direct and the support column contact, and area of contact is bigger, and pressure is littleer, and the pressure strip is more steady at gliding in-process, and it is smooth and easy to slide.

Preferably, a plurality of balls for reducing friction force applied when the sleeve slides are installed in the sleeve.

Through adopting above-mentioned technical scheme, through the setting of ball for sliding friction between sleeve and the support column becomes rolling friction, and the frictional resistance who receives when making the sleeve slide reduces, and it is more smooth and easy to slide.

Preferably, a wax injection gun is installed on one side of the base, the mold is provided with a wax injection port, and the wax injection port is provided with a sealing gasket for sealing a gun port of the wax injection gun.

Through adopting above-mentioned technical scheme, when annotating the wax rifle and inserting when annotating the wax mouth and injecting into wax liquid, if there is the air to enter into wax liquid, can make wax liquid when solidifying the shaping, there is the bubble to form product inside, can influence subsequent production manufacturing like this, through setting up sealed the pad, avoided the air to enter into wax liquid.

Preferably, the sealing gasket is provided with a yielding groove which is convenient for the wax injection gun to be inserted into the wax injection port.

Through adopting above-mentioned technical scheme, when annotating the wax rifle and inserting the wax injection mouth, in order to ensure that the leakproofness is good, the diameter of sealed pad will be less than the diameter of annotating the wax rifle, makes to annotate the wax rifle and inserts the wax injection mouth through interference fit. The groove of stepping down has been seted up to sealed the pad, has reserved the space of deformation for being extruded sealed pad, under the prerequisite of guaranteeing annotate the wax rifle and annotate wax mouthful leakproofness, is favorable to annotating the wax rifle and inserts the wax mouth.

Preferably, a fixing plate is installed at the top of the base, positioning pins capable of fixing the die are arranged on the fixing plate, the number of the positioning pins is at least two, and positioning holes capable of being inserted into the positioning pins are formed in the bottom of the die.

By adopting the technical scheme, the positioning of the die is facilitated by the arrangement of the positioning pin and the positioning hole, and the condition that the placing position of the die is adjusted by human eye observation is avoided. The quantity of locating pin is two, and two fixed points, fixed effect is better for when receiving the effect of external force, also be difficult for sliding after making the mould location well.

Preferably, the bottom of the pressing plate is provided with a non-slip mat.

Through adopting above-mentioned technical scheme, through setting up the slipmat, increased the frictional force of pressure strip with the mould contact surface for the mould is by pressure fastening of pressure strip after fixed, and difficult slip has avoided the position of mould to take place the skew, causes and annotates the wax rifle and can't insert the wax mouth.

Preferably, the support column is sleeved with a buffer pressure spring, one end of the buffer pressure spring is abutted to the pressing plate, and the other end of the buffer pressure spring is abutted to the base.

Through adopting above-mentioned technical scheme, through the setting of buffering the pressure spring, when the pressure strip is at the in-process that compresses tightly the mould, the pressure strip can butt buffering pressure spring earlier, and the buffering pressure spring receives the extrusion, has played the effect of buffering to the downstream of pressure strip for the slow butt mould of pressure strip has reduced the impact to the mould in the motion process.

To sum up, the utility model discloses a beneficial technological effect does:

1. the sleeve is connected with the piston rod through the threads, and the total length of the piston rod can be adjusted within a certain limit by rotating the sleeve, so that the device is convenient to be suitable for moulds with different mould closing heights;

2. the setting of crossing the buffering pressure spring, when the pressure strip is at the in-process that compresses tightly the mould, the pressure strip can butt buffering pressure spring earlier, and the buffering pressure spring receives the extrusion, has played the effect of buffering to the downstream of pressure strip for the slow butt mould of pressure strip has reduced the impact to the mould in the motion process.

Drawings

Fig. 1 is a schematic view of the overall structure of an automatic wax injection machine.

Fig. 2 is a schematic view of the connection of the pipe sleeve and the fixed shaft.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

FIG. 4 is a schematic view of the position of the compression plate and cleat.

Fig. 5 is a cross-sectional view of the sleeve.

Fig. 6 is a schematic view of the location of the wax injection gun and the wax injection port.

Fig. 7 is a schematic view of the positions of the positioning pins and the positioning holes.

Fig. 8 is a schematic view of the structure of the gasket.

In the figure, 1, a base; 11. a fixing plate; 12. positioning pins; 2. a support pillar; 3. a support plate; 31. a hole of abdication; 4. a wax injection gun; 5. a cylinder; 51. a cylinder body; 52. a piston rod; 6. pipe sleeve; 61. a second through hole; 7. a fixed shaft; 71. a first through hole; 72. a connecting pin; 721. a clamping block; 73. a compression plate; 731. a slide hole; 732. a sleeve; 7321. a ball bearing; 733. a non-slip mat; 8. a mold; 81. an upper cover; 82. a lower cover; 821. positioning holes; 83. injecting wax; 831. a gasket; 8311. a yielding groove; 9. and buffering the pressure spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an automatic wax injection machine, including base 1, support column 2, backup pad 3 and notes wax rifle 4, base 1 has played the effect of support to annotating the wax machine, and base 1 is square on the whole. The four support columns 2 are respectively positioned at four corners of the top of the base 1. The wax injection gun 4 is positioned at the upper part of the base 1 near one side of the base 1. Backup pad 3 is located support column 2 top, and 3 tops of backup pad have cylinder 5 through bolt fixed mounting, and cylinder 5 includes cylinder body 51 and piston rod 52, and cylinder body 51 passes through bolt fixed mounting at the top of backup pad 3, and the hole of stepping down 31 has been seted up at the middle part of backup pad 3, and piston rod 52 wears to penetrate in the hole of stepping down 31.

Referring to fig. 2 and 3, a socket 6 is threadedly coupled to an end of the piston rod 52, and an end of the socket 6 remote from the piston rod 52 is threadlessly disposed. The fixing shaft 7 is installed at one end, far away from the piston rod 52, of the pipe sleeve 6, a first through hole 71 is formed in the circumferential surface of the fixing shaft 7, a second through hole 61 is formed in the pipe sleeve 6, and the first through hole 71 and the second through hole 61 are identical in shape and size. The pipe sleeve 6 is sleeved on the fixed shaft 7, and the pipe sleeve 6 is rotated to enable the first through hole 71 to correspond to the second through hole 61. A connecting pin 72 is inserted through the first through hole 71 and the second through hole 61, and the piston rod 52 is fixedly connected to the fixed shaft 7 by the connecting pin 72. A latch 721 is welded to one end of the connecting pin 72.

Referring to fig. 4 and 5, the pressing plate 73 is welded at one end of the fixing shaft 7, which is far away from the piston rod 52, the pressing plate 73 is square, the four corners of the pressing plate are provided with sliding holes 731, the sliding holes 731 are provided with sleeves 732 in an interference fit manner, and the support column 2 penetrates through the sleeves 732, so that the pressing plate 73 is slidably connected to the support column 2. A plurality of balls 7321 are mounted on the inner wall of the sleeve 732, reducing the frictional resistance experienced by the sleeve 732 when sliding on the support column 2. A non-slip pad 733 is adhered to the bottom of the pressing plate 73.

Referring to fig. 6 and 7, each supporting column 2 is sleeved with a buffering pressure spring 9, when the pressure plate 73 abuts against the mold 8, one end of each buffering pressure spring 9 abuts against the pressure plate 73, the other end of each buffering pressure spring 9 abuts against the base 1, and the buffering pressure springs 9 are elastically deformed at the moment. Through the setting of buffering pressure spring 9, when the pressure strip 73 is at the in-process that compresses tightly mould 8, pressure strip 73 can butt buffering pressure spring 9 earlier, and buffering pressure spring 9 receives the extrusion, has played the effect of buffering to the downstream of pressure strip 73 for the slow butt mould 8 of pressure strip 73 has reduced the impact to mould 8 in the motion process.

A fixing plate 11 is fixedly arranged on the base 1 through bolts, the fixing plate 11 is square, and a die 8 is arranged on the fixing plate 11. Two positioning pins 12 are welded to the bottom of the fixing plate 11. The mold 8 includes an upper cover 81 and a lower cover 82, and a bottom of the lower cover 82 is provided with a positioning hole 821 into which the positioning pin 12 can be inserted. The wax injection port 83 is formed in one side, corresponding to the wax injection gun 4, of each mold 8, the wax injection port 83 is circular, the size and the shape of the wax injection port 83 of each mold 8 are identical, a sealing gasket 831 is installed at the position of the wax injection port 83, the sealing gasket 831 is made of rubber, and the sealing gasket 831 is adhered to the wax injection port 83 and surrounds the wax injection port 83 for a circle.

Referring to fig. 8, the sealing pad 831 is formed with a plurality of relief grooves 8311 surrounding the inner side of the sealing pad 831 for a circle.

When the wax injection gun 4 is inserted into the wax injection port 83, in order to ensure good sealing performance, the diameter of the sealing gasket 831 is smaller than that of the wax injection gun 4, and the wax injection gun 4 is inserted into the wax injection port 83 through interference fit. The sealing gasket 831 is provided with a yielding groove 8311, and a deformation space is reserved for the extruded sealing gasket 831, so that the wax injection gun 4 can be conveniently inserted into the wax injection port 83 on the premise of ensuring the sealing performance of the wax injection gun 4 and the wax injection port 83.

The implementation process of the embodiment is as follows: the initial state of the cylinder 5 is the contraction of the piston rod 52. When different molds 8 are replaced and the mold closing heights are different and the length of the piston rod 52 needs to be adjusted, the molds 8 are firstly placed on the fixing plate 11, and the molds 8 are positioned through the positioning holes 821 of the positioning pins 12; the connecting pin 72 is removed, the fixed connection between the piston rod 52 and the fixed shaft 7 is released, and the pressing plate 73 slides downward and abuts against the mold 8. The cylinder 5 is now activated so that the piston rod 52 extends out of the cylinder 5 and the piston rod 52 moves to the bottom most. Then, the pipe sleeve 6 is rotated to move the pipe sleeve 6 downwards, so that the mold closing height is greater than the stroke fixed point height of the wax injection machine, and then the pipe sleeve 6 is sleeved on the fixed shaft 7, so that when the first through hole 71 corresponds to the second through hole 61, the sleeve 732 stops rotating, the connecting pin 72 is inserted, and the piston rod 52 is fixedly connected with the fixed shaft 7. Then, the position of the wax injection gun 4 is adjusted to correspond to the position of the wax injection port 83, and after the above process is completed, the wax injection machine can be started to work.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an automatic wax injection machine, includes base (1), is located support column (2) on base (1), is located backup pad (3) at support column (2) top, install cylinder (5) on backup pad (3), cylinder (5) include piston rod (52), piston rod (52) run through backup pad (3), install mould (8) on base (1), the one end of piston rod (52) is installed and is compressed tightly pressure strip (73) of mould (8), its characterized in that: a pipe sleeve (6) is arranged at one end of the piston rod (52), the pipe sleeve (6) is in threaded connection with the piston rod (52), a fixing shaft (7) is installed at one end, far away from the piston rod (52), of the pipe sleeve (6), and the fixing shaft (7) is installed at the top of the pressing plate (73).

2. An automatic wax injector as defined in claim 1, wherein: the pressing plate (73) is provided with a sliding hole (731), the supporting column (2) penetrates through the sliding hole (731), and the pressing plate (73) is connected with the supporting column (2) in a sliding mode.

3. An automatic wax injector as defined in claim 2, wherein: a sleeve (732) is installed in the sliding hole (731), and the supporting column (2) penetrates through the sleeve (732).

4. An automatic wax injector as defined in claim 3, wherein: a plurality of balls (7321) are mounted in the sleeve (732) to reduce friction force applied to the sleeve (732) when the sleeve slides.

5. An automatic wax injector as defined in claim 1, wherein: annotate wax rifle (4) is installed to one side of base (1), mould (8) are provided with annotate wax mouth (83), it is sealed to annotate wax mouth (83) install annotate the sealed pad (831) of the muzzle of wax rifle (4).

6. An automatic wax injector as defined in claim 5, wherein: the sealing gasket (831) is provided with a yielding groove (8311) which is convenient for the wax injection gun (4) to be inserted into the wax injection port (83).

7. An automatic wax injector as defined in claim 1, wherein: the fixed plate (11) is installed at the top of base (1), be provided with on fixed plate (11) and fix locating pin (12) of mould (8), the quantity of locating pin (12) is two at least, the bottom of mould (8) is provided with locating hole (821) that can insert locating pin (12).

8. An automatic wax injector as defined in claim 1, wherein: the bottom of the pressing plate (73) is provided with an anti-skid pad (733).

9. An automatic wax injector as defined in claim 1, wherein: the support column (2) is sleeved with a buffering pressure spring (9), one end of the buffering pressure spring (9) is abutted to the pressing plate (73), and the other end of the buffering pressure spring (9) is abutted to the base (1).