JP4437995B2 - Liquid injection gun - Google Patents

Description

  The present invention relates to an improvement of a liquid injection gun.

Various filling guns have been put into practical use as tools for injecting liquid into containers. Among these, a filling gun has been proposed in which a nozzle of a filling gun is inserted into the mouth of a container opened upward, and liquid is injected while the outside of the mouth is fixed by a clamp (see, for example, Patent Document 1). ).
Japanese Patent Publication No.8-018636 (Fig. 4)

Patent document 1 is demonstrated based on the following figure.
FIG. 7 is a diagram for explaining the basic configuration of the prior art. The filling gun 200 includes a nozzle 203 attached to the tip of the robot arm 201 via an equalizing mechanism 202, and a seal rubber 204 attached to the lowermost surface of the nozzle 203. , Two cam grooves 205, 206 provided in the flange portion provided in the nozzle 203 above the seal rubber 204, a pair of clamp claws 207, 208 provided by being inserted into the cam grooves 205, 206, and The air cylinders 209 and 211 are connected to the clamp claws 207 and 208 and supported by the equalizing mechanism 202.

  The clamp claws 207 and 208 are guided in the cam grooves 205 and 206. For this reason, when the clamp claws 207 and 208 are lifted by the air cylinders 209 and 211 from the open state indicated by the phantom lines, the clamp claws 207 and 208 move upward while performing a clamping operation. Thereafter, the clamp claws 207 and 208 are hooked on the flange 214 of the injection port 213, and the nozzle 203 is relatively lowered to press the seal rubber 204 against the seating surface 215 of the injection port 213. While maintaining this pressure contact state, the inside of the container 212 is evacuated to reduce the pressure, and then the liquid is injected from the nozzle 203.

That is, the position of the injection port 213 is taught (teaching) to the robot, and the robot arm 201 is moved based on this teaching, and the filling gun 200 is made to face the injection port 213. The weight of the filling gun 200 is It can be handled by the robot arm 201.
By the way, in order to eliminate the need for a large robot and to allow the filling gun 200 to face the container 212 by hand, it is necessary to reduce the load on the operator and improve the weight balance.

  It is an object of the present invention to provide a liquid injection gun that can be easily handled manually without using a large apparatus.

According to a first aspect of the present invention, there is provided a columnar housing that houses a piston movably up and down, a liquid passage, a hydraulic passage for raising the piston that feeds hydraulic oil to a lower oil chamber below the piston, and an upper oil above the piston. bored a piston lowering hydraulic passage for sending hydraulic oil to the chamber, connecting the upper end the clamping claw along a side face of the columnar housing of the piston rod extended upward from said piston, the mouth of a container having an opening above , placing a lower surface of the columnar housing, the columnar housing by the clamp jaws are locked so as not to deviate from the mouth of the container, the inside of the vessel was evacuated through the liquid passage in this locked state, into the container interior In a liquid injection gun that injects liquid and collects excess liquid,
The liquid injection gun includes a first manifold block that collectively includes a first passage connected to the liquid passage, a second passage connected to the piston raising hydraulic passage, and a third passage connected to the piston lowering hydraulic passage. ,
An ascending side hydraulic oil valve connected to the second passage and opening and closing the second passage; and a descending side hydraulic oil valve connected to the third passage and opening and closing the third passage; a second manifold block having a second air passage for supplying working air for opening and closing the descending side operation fluid valve and the first air passage for supplying working air for opening and closing the Aburaben,
Said first manifold block and said second manifold block, mounted on the upper surface of the columnar housing, fitted with a grip handle having a horizontal bar on the first manifold block and a second manifold block,
The position of the horizontal bar is determined so that a vertical line passing through the center of the mouth of the container penetrates the horizontal bar.

In the invention according to claim 2, when the first manifold block and the second manifold block are provided on the upper surface of the columnar housing, and the end face of the horizontal bar is visible, the center of gravity of the first manifold block and the second manifold block can be seen. The center of gravity of the manifold block is arranged on the left and right with respect to the center of the columnar housing.

  The invention according to claim 3 is characterized in that the first manifold block is made of light metal and the second manifold block is made of steel having a specific gravity larger than that of the light metal.

  The invention according to claim 4 is characterized in that the first manifold block, the second manifold block and the grip handle are detachable.

  In the invention according to claim 1, the position of the horizontal bar of the grip handle is determined so as to penetrate a vertical line passing through the center of the mouth of the container. For this reason, the moment arm from the vertical line to the center of the horizontal bar is reduced, so that the moment around the center of the horizontal bar can be reduced. Thereby, when the grip handle is lifted, the fluctuation of the gun body is reduced, and the usability of the liquid injection gun is improved. Therefore, according to the first aspect, it is possible to provide a liquid injection gun that can be more easily handled manually.

In the invention according to claim 2, when the first manifold block and the second manifold block are provided on the upper surface of the columnar housing, and the end face of the horizontal bar is in a posture that can be seen in front, the center of gravity of the first manifold block and the second manifold block The center of gravity is arranged on the left and right with respect to the center of the columnar housing. Therefore, the center of gravity of both manifold blocks is concentrated on the columnar housing. Thereby, the main body attitude | position of a liquid injection | pouring gun is further stabilized, a wobble is eliminated, and a gun main body can be set to the mouth of a container by a human hand in a short time. Therefore, the working time using the liquid injection gun can be shortened.

  In the invention which concerns on Claim 3, the 1st manifold block was comprised with the light metal, and the 2nd manifold block was comprised with steel with larger specific gravity than the said light metal. Therefore, even if the arrangement and shape of the first manifold block and the second manifold block in the entire liquid injection gun are unbalanced, the center of gravity of the gun body can be stabilized. Therefore, stabilization of the center of gravity of the liquid injection gun can be realized more easily.

  In the invention according to claim 4, since the first manifold block, the second manifold block, and the grip handle are configured to be removable, the liquid injection gun can be easily assembled and disassembled. Therefore, maintainability of the liquid injection gun can be improved.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of a liquid injection gun according to the present invention. In the liquid injection gun 10, a clamp claw portion 50 is attached to a side surface of a columnar housing 20 placed on a mouth 12 of a container 11 opened above, and the columnar housing 20. A portable injection gun having a first manifold block 60 and a second manifold block 90 mounted thereon, and a grip handle 120 mounted on the first manifold block 60 and the second manifold block 90, and a clamp claw portion 50 includes three clamp claws 51, 51, 51.

FIG. 2 is a front view of a liquid injection gun according to the present invention. A columnar housing 20 includes a columnar housing main body 21, a piston storage chamber 22 formed in the housing main body 21, and a view from the upper right of the housing main body 21. A liquid passage 23 is formed by making a hole from the lower right to the lower left in the figure, and an injection port 24 having a hole formed downward from the liquid passage 23.
A piston 25 is housed in the piston housing chamber 22 so as to be movable up and down. The piston 25 is provided with a piston rod 26 on the upper side, and a lid 27 is provided so as to sandwich the piston rod 26.

In addition, the piston storage chamber 22 is divided into a lower oil chamber 28 and an upper oil chamber 29 by the piston 25.
31 is a conical injection part, 32 is a bush, 33, 34, 35, and 36 are O-rings, 37 is a plug, 38 (... indicates a plurality, the same applies below) is a bolt.
The structure for supplying hydraulic oil to the lower oil chamber 28 and the upper oil chamber 29 will be described later.

  The clamp pawl 51 has a C-shaped base 53 that is fixed to the upper end of the piston rod 26 with a bolt 52, and is connected to the tip of the clamp base 53 with a rotation pin 54 and extends along the side surface of the housing body 21. A clamp claw body 55, a claw portion 56 provided at the tip of the clamp claw body 55, a slide fixing pin 58 attached to a support plate 57 fixed to the housing body 21, and a clamp for inserting the slide fixing pin 58 It consists of a long slot 59 for sliding provided in the bent portion of the claw body 55.

Moreover, the columnar housing 20 can be made into a locked state because the nail | claw part 56 of the clamp nail | claw 51 presses the collar part 13 provided in the opening | mouth 12. FIG. Since this is performed with three clamp claws (see reference numerals 51, 51, 51 in FIG. 1), the entire periphery of the collar portion 13 can be locked. The detailed structure of the clamp base 53 will be described later.
Next, the detailed structure of the first manifold block 60 and the second manifold block 90 will be described.

The first manifold block 60 includes a first A block main body 61 provided on the housing main body 21, a first B block main body 62 provided on the right side of the first A block main body 61 in the figure, and a first C provided on the first A block main body 61. It consists of a block main body 63.
64 is a pneumatic operation valve for collecting excess liquid (hereinafter referred to as a valve for collecting excess liquid), 65 is a pneumatic operation valve for supplying liquid (hereinafter referred to as a valve for supplying liquid), 66... 69. , 73 is a tube joint, 67... 71, 74 is a tube, 68... Is a valve support plate, 72 is an elbow, 75 is a tube deflection preventing plate, 76. It is.
The detailed structures of the first A block main body 61, the first B block main body 62, and the first C block main body 63 will be described later.

The second manifold block 90 is provided on the first A block main body 61 and the first B block main body 62 and has an air passage therein, and a first start switch provided on a side surface of the second block main body 91. 92, a stop switch 93 provided on the upper surface of the second block main body 91, and an elbow 94 as an air inlet through which primary air is introduced while being provided on the side of the second block main body 91 in the right side of the figure.
95 is a tube, and 96 is a tube joint.

  The grip handle 120 has a horizontal bar 121 and is mounted on the first manifold block 60 and the second manifold block 90. The position of the horizontal bar 121 is determined such that a vertical line 123 passing through the center 122 of the mouth 12 of the container 11 passes through the horizontal bar 121.

124 is a connecting plate fixed to the horizontal bar 121, 125 and 126 are support materials, 127..., 128 and 129 are bolts. In addition, another set of these parts exists because the horizontal bar 121 is supported also in the back direction.
Next, a structure for supplying hydraulic oil to the lower oil chamber 28 and the upper oil chamber 29 and a detailed structure of the first A block main body 61 and the first C block main body 63 will be described.

  FIG. 3 is a cross-sectional view of the main part of the liquid injection gun according to the present invention. In FIG. 3A, a first A block main body 61 is provided on the housing main body 21 of the columnar housing 20, and A first C block main body 63 is provided, an elbow 72 having a taper screw is attached to the upper surface of the first C block main body 63, a tube joint 73 is attached to the tip of the elbow 72, and a tube 74 is inserted into the tube joint 73. Indicates the state.

In addition, a hole is formed in the thick part of the housing main body 21 so as to be connected to the lower oil chamber (reference numeral 28 in FIG. 2), and a piston raising hydraulic passage 41 is provided so as to be connected to the piston raising hydraulic passage 41. A hole is formed in the thick part of the first A block main body 61 and the first C block main body 63 to provide a second passage 78.
42 and 79 are O-rings.

In this state, when the hydraulic oil is supplied as indicated by the white arrow (1), the hydraulic oil passes through the second passage 78 and the piston raising hydraulic passage 41 and reaches the lower oil chamber.
When the lower oil chamber is filled with hydraulic oil, the piston (reference numeral 25 in FIG. 2) rises upward by the hydraulic pressure of the hydraulic oil. Thereafter, when the piston contacts the lower surface of the lid (reference numeral 27 in FIG. 2), the piston stops rising and stops at the position shown in FIG.

  Returning to FIG. 3, in (b), a piston lowering hydraulic passage 43 is provided by making a hole in the thick part of the housing body 21 so as to connect to the upper oil chamber (29 in FIG. 2). The third passage 81 is provided by making a hole in the thick portion of the first A block main body 61 and the first C block main body 63 so as to be connected to the hydraulic passage 43 for use.

In this state, when the hydraulic oil is supplied as indicated by the white arrow (2), the hydraulic oil passes through the third passage 81 and the piston lowering hydraulic passage 43 and reaches the upper oil chamber.
When the upper oil chamber is filled with the hydraulic oil, the piston (reference numeral 25 in FIG. 2) is lowered downward by the hydraulic pressure of the hydraulic oil.

At the same time that the upper oil chamber is filled with the working oil, the filled working oil passes through the piston raising hydraulic passage 41 and the second passage 78 from the lower oil chamber in the lower oil chamber (28 in FIG. 2). Then, it is discharged from the tube 74 as shown by the white arrow (3).
Thereafter, when the piston comes into contact with the upper surface of the lower oil chamber of the housing main body 21, the lowering stops.

Further, in (a), when the hydraulic oil is supplied as indicated by the white arrow (1), the hydraulic oil filled in the upper oil chamber in (b) passes through the piston lowering hydraulic passage 43 and the third passage 81. It passes through and is discharged from the tube 74 as indicated by the white arrow (4).
Next, the structure of the clamp base 53 and the detailed structure of the first B block main body 62 will be described.

FIG. 4 is a plan view of the liquid injection gun according to the present invention, and the clamp base 53 is a member that collectively supports three clamp claws 51, 51, 51 arranged radially. Further, since the clamp base 53 is connected to the piston (reference numeral 25 in FIG. 2) and the piston rod (reference numeral 26 in FIG. 2), it moves up and down simultaneously with the piston by the hydraulic pressure of the hydraulic oil. Therefore, when the clamp base 53 is raised, the clamp claws 51, 51, 51 perform a locking operation, and when the clamp base 53 is lowered, the clamp claws 51, 51, 51 perform an unlocking operation.
Next, the detailed structure of the 1B block main body 62 is demonstrated.

The first B block main body 62 protrudes in a convex shape in the right direction of the figure, and the surplus liquid recovery valve 64, the liquid supply valve 65, and the vacuum exhaust air pressure control valve (hereinafter referred to as the vacuum exhaust valve) are projected on the upper surface (the chart direction). ) 83 is attached.
A first passage 84 is provided so that the ports of the excess liquid recovery valve 64, the liquid supply valve 65, and the vacuum exhaust valve 83 are connected to the liquid passage 23.

The first passage 84 includes a liquid supply passage 85 extending from the liquid passage 23 in the right direction in the drawing, a vacuum exhaust passage 86 extending from the liquid passage 23 in the upward direction in the drawing, and a drawing from the liquid passage 23. And an excess liquid recovery passage 87 extending downward.
88 ... is a valve seat provided in each of the surplus liquid recovery valve 64, the liquid supply valve 65, and the vacuum exhaust valve 83, and 89 ... is a small screw for fixing the valves 64, 65, 83.
Next, the structure of the second passage 78 and the third passage 81 will be supplementarily described.

The second passage 78 is provided below the liquid passage 23 in the figure, and the third passage 81 is provided above the liquid passage 23 in the figure.
The positions of the second passage 78 and the third passage 81 can be interchanged with respect to the liquid passage 23 due to the structure of the housing body (reference numeral 21 in FIG. 2). It can be replaced.
Next, the structure of the second manifold block 90 will be supplementarily described.

  In addition to the above-described configuration, the second manifold block 90 is provided in the second block main body 91 so as to be adjacent to the second start switch 97 provided in the upper direction of the second block main body 91 in the figure. A first pipe 98 serving as an air outlet, and a second pipe 99 serving as an air outlet provided in the second block body 91 so as to be adjacent to the first pipe 98.

  Further, the tubes 102 and 102 are respectively attached to the tube joints 101 and 101 respectively provided in the first pipe 98 and the second pipe 99, and these tubes 102 and 102 are connected to the controller 103. From the controller 103, the tubes 67. And connected to the surplus liquid recovery valve 64, the liquid supply valve 65, and the vacuum exhaust valve 83.

In addition, the controller 103 includes a start pressure switch 104, a stop pressure switch 105, ascending hydraulic oil valves 106 and 107, descending hydraulic oil valves 108 and 109, a vacuum air valve 111, and liquid supply air. A valve 112, an excess air valve 113, a timer 114, and a programmable controller (hereinafter referred to as PLC) 115 are provided.
116 is a hydraulic oil pump, 117 is a hydraulic oil tank, 131 is a vacuum pump for evacuation, 132 is a liquid injection pump, and 133 is a vacuum pump for collecting excess liquid.

Furthermore, since the controller 103 includes the PLC 115, the start pressure switch 104, the stop pressure switch 105, the rising side hydraulic oil valves 106 and 107, the lowering side hydraulic oil valves 108 and 109, the vacuum air valve 111, the supply pressure The operations of the liquid air valve 112, the surplus air valve 113, and the timer 114 are executed by sequence control.
A control method of the controller 103 will be described later.

Therefore, the operator presses the first start switch 92, the stop switch 93, or the second start switch 97 to perform a clamping operation, a liquid injection operation, a vacuum exhaust operation, and a surplus liquid recovery operation including a lock operation and an unlock operation. Can be controlled.

Note that the second start switch 97 is a switch provided as a spare, and is configured not to output a signal to other devices, and therefore description of the operation is omitted in this embodiment.
Next, the operation of the liquid injection gun 10 having the above configuration will be described.

FIG. 5 is an operation diagram of the liquid injection gun according to the present invention, and shows that the liquid injection gun 10 is in a ready state. Here, the operation will be described with reference to FIG.
First, a clamping operation is performed. An operator holds the horizontal bar 121 and lifts the liquid injection gun 10 to move it above the mouth 12 of the container 11. Next, the liquid injection gun 10 is lowered toward the inner surface of the mouth 12 as shown by the arrow (1), and the liquid injection gun 10 is set in the mouth 12.

  In FIG. 4, when the first start switch 92 is pressed, the lock signal related to the clamp pawl 51 is input to the start pressure switch 104 in the form of air pressure as indicated by the arrow (2). Further, the lock signal is transmitted to the PLC 115, and the ascending hydraulic oil valve 106 is opened by a command from the PLC 115.

  In this state, hydraulic oil is supplied to the second passage 78 by the hydraulic oil pump 116 as indicated by an arrow (3). This hydraulic oil passes from the second passage 78 through the piston raising hydraulic passage (reference numeral 41 in FIG. 3), reaches the lower oil chamber (reference numeral 28 in FIG. 2), and raises the piston (reference numeral 25 in FIG. 2).

  At this time, the ascending hydraulic oil valve 107 and the descending hydraulic oil valves 108 and 109 are closed. Further, primary air is supplied from the elbow 94 to the second block body 91.

On the other hand, the hydraulic oil filled in the upper oil chamber (reference numeral 29 in FIG. 2) simultaneously opens the lower hydraulic oil valve 108 to open the piston lowering hydraulic passage (reference numeral 43 in FIG. 3) and the upper oil chamber. It passes through the third passage (reference numeral 81 in FIG. 3) and is discharged to the hydraulic oil tank 117 as indicated by an arrow (4). At this time, the descending hydraulic oil valve 109 is closed.
This raises the piston.

In FIG. 5, when the piston rises, the clamp claw 51 rises as indicated by the arrow (5), and the claw portion 56 presses against the flange portion 13 of the container 11.
The liquid injection gun 10 is now locked as shown in FIG.

Next, a liquid injection operation is performed. This operation is all executed by PLC sequence control as in the clamping operation.
In FIG. 5, the surplus liquid recovery valve 64, the liquid supply valve 65, and the vacuum exhaust valve (reference numeral 83 in FIG. 4) are all closed by default.

  In FIG. 4, the primary air is supplied to the inlet side of the surplus liquid recovery valve 64, the liquid supply valve 65, and the vacuum exhaust valve 83 as indicated by the arrow (6). From this state, the vacuum air valve 111 is opened, and air is supplied to the vacuum exhaust valve 83 as shown by an arrow (7). With this supplied air, the vacuum exhaust valve 83 is opened, the internal air of the container (reference numeral 11 in FIG. 5) is exhausted by the vacuum exhaust vacuum pump 131 as shown by the arrow (8), and the internal pressure of the container is reduced. To.

  After the evacuation is completed, the evacuation valve 83 is closed by closing the vacuum air valve 111. Thereafter, the liquid supply air valve 112 is opened, and air is supplied to the liquid supply valve 65 as indicated by an arrow (9). The liquid supply valve 65 is opened by the supplied air, and the liquid is injected into the container by the liquid injection pump 132 as indicated by an arrow (10).

After the liquid injection is completed, the liquid supply air valve 112 is closed, so that the liquid supply valve 65 is closed. Thereafter, the surplus air valve 113 is opened, and air is supplied to the surplus liquid recovery valve 64 as indicated by an arrow (11). The surplus liquid recovery valve 64 is opened with the supplied air, and the surplus liquid remaining in the container mouth is recovered by the surplus liquid recovery vacuum pump 133 as indicated by an arrow (12).
After the surplus liquid is recovered, the surplus air recovery valve 64 is closed by closing the surplus air valve 113.

Note that the above-described evacuation operation, liquid injection operation, and excess liquid recovery operation are all controlled by the PLC 115 with predetermined values determined by the timer 114.
Next, the clamping claw 51 is unlocked.

  When the stop switch 93 is pressed, an unlock signal related to the clamp pawl 51 is input to the stop pressure switch 105 as shown by an arrow (13) in the form of air pressure. Further, the unlock signal is transmitted to the PLC 115, and the lowering hydraulic oil valve 109 is opened by a command from the PLC.

  In this state, hydraulic oil is supplied to the third passage 81 by the hydraulic oil pump 116 as indicated by an arrow (14). This hydraulic oil passes from the third passage 81 through the piston lowering hydraulic passage (reference numeral 43 in FIG. 3), reaches the upper oil chamber (reference numeral 29 in FIG. 2), and lowers the piston. At this time, the lowering hydraulic oil valve 108 is in a closed state.

On the other hand, the hydraulic oil filled in the lower oil chamber (reference numeral 28 in FIG. 2) simultaneously opens the upward hydraulic oil valve 107 so that the piston rising hydraulic passage (reference numeral 41 in FIG. 3) and the second passage 78. And is discharged to the hydraulic oil tank 117 as indicated by an arrow (15). At this time, the ascending hydraulic oil valve 106 is closed.
The piston is now lowered.

In FIG. 5, the clamp pawl 51 is lowered as indicated by an arrow (16) as the piston is lowered. When the claw portion 56 of the descending clamp claw 51 is separated from the collar portion 13 of the container 11, the liquid injection gun 10 is unlocked.
Finally, the operator holds the horizontal bar 121 and lifts and moves the liquid injection gun 10. Thereafter, the above operations are repeated.

  Therefore, in FIG. 2, the liquid injection gun 10 determines the position of the horizontal bar 121 of the grip handle 120 so as to penetrate the vertical line 123 passing through the center 122 of the mouth 12 of the container 11. For this reason, the moment arm from the vertical line 123 to the center of the horizontal bar 121 is reduced, so that the moment around the center of the horizontal bar 121 can be reduced. Thereby, when the grip handle 120 is lifted, the fluctuation of the gun body is reduced, and the usability of the liquid injection gun 10 is improved. Therefore, it is possible to provide the liquid injection gun 10 that can be handled easily by hand.

In addition, the liquid injection gun 10 has the center of gravity of the first manifold block 60 positioned to the right or left of the center of the columnar housing 20, and the center of gravity of the second manifold block 90 is set to the left or right of the center of the columnar housing 20. It is characterized by the fact that it came to be.
By adopting this configuration, the center of gravity of each of the first manifold block 60 and the second manifold block 90 is concentrated on the columnar housing 20. Thereby, the main body attitude | position of the liquid injection | pouring gun 10 is further stabilized, a wobble is eliminated, and a gun main body can be set to the opening | mouth 12 of the container 11 by a short time manually. Therefore, the working time using the liquid injection gun 10 can be shortened.

  Next, an embodiment in which the first manifold block 60 is made of light metal and the second manifold block 90 is made of steel having a specific gravity larger than that of the light metal will be described.

  FIG. 6 is an exploded perspective view of the liquid injection gun according to the present invention. The liquid injection gun 10B includes a columnar housing 20B, a clamp claw portion 50B, a first manifold block 60B, a second manifold block 90B, and a grip handle 120B. The first manifold block 60B is made of light metal, and the second manifold block 90B is made of steel having a specific gravity larger than that of the light metal.

In the liquid injection gun 10B, for example, the columnar housing 20B is made of an aluminum alloy, the clamp claws 50B are made of stainless steel, and the first A block main body 61B is made of an aluminum alloy.
Further, the first B block main body 62B, the first C block main body 63B, the valve support plate 68B..., The elbows 72B and 72B, and the tube joints 73B and 73B are made of an aluminum alloy, the surplus liquid recovery valve 64B and the liquid supply The valve 65B and the vacuum exhaust valve 83B are made of a magnesium alloy.

And the 2nd block main body 91B, the horizontal bar 121B, and support material 125B, 126B are comprised with carbon steel.
With these configurations, the center of gravity of the gun body can be stabilized even when the arrangement and shape of the first manifold block 60B and the second manifold block 90B in the entire liquid injection gun 10B are unbalanced. Therefore, stabilization of the center of gravity of the liquid injection gun 10B can be realized more easily.

  In addition, about the material of the 2nd block main body 91B, although comprised with carbon steel in this example, since it can consider from the balance of the whole liquid injection | pouring gun 10B and can comprise with stainless steel, in another structure It can be changed.

In addition, the liquid injection gun 10B is characterized in that the first manifold block 60B, the second manifold block 90B, and the grip handle 120B are removable.
By adopting this structure, the liquid injection gun 10B can be easily assembled and disassembled. Therefore, maintainability of the liquid injection gun can be improved.

  The liquid injection gun of the present invention is suitable for an injection gun used for liquid injection work.

1 is a perspective view of a liquid injection gun according to the present invention. It is a front view of the liquid injection gun concerning the present invention. It is principal part sectional drawing of the liquid injection | pouring gun which concerns on this invention. It is a top view of the liquid injection gun concerning the present invention. It is an operation view of the liquid injection gun according to the present invention. It is a disassembled perspective view of the liquid injection | pouring gun which concerns on this invention. It is a figure explaining the basic composition of the conventional technology.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 10B ... Liquid injection gun, 11 ... Container, 12 ... Container mouth, 20, 20B ... Columnar housing, 23 ... Liquid passage, 25 ... Piston, 26 ... Piston rod, 28 ... Lower oil chamber, 29 ... Upper oil chamber 41 ... Piston raising hydraulic passage, 43 ... Piston lowering hydraulic passage, 51, 51B ... Clamp claw, 60, 60B ... First manifold block, 78 ... Second passage, 81 ... Third passage, 84 ... First passage , 90, 90B ... second manifold block, 98 ... first air passage, 99 ... second air passage, 106, 107 ... ascending hydraulic oil valve, 108, 109 ... descending hydraulic oil valve, 120 , 120B ... grip handle 121, 121B ... horizontal bar, 122 ... center, 123 ... vertical line.

Claims (4)

Piston-lifting hydraulic passage ( feeding hydraulic oil to a liquid passage (23) and a lower oil chamber (28) below the piston (25) in a columnar housing (20) housing a piston (25) movably up and down 41) and the piston (25) of the piston lowering hydraulic passage (43 sending hydraulic oil above the upper oil chamber (29)) and bored, said piston rod extended from the piston (25) upwards (26) wherein connecting the columnar housing clamping claw along a side of (20) (51) at the upper end, the mouth (12) of the open container (11) above, placing the lower surface of the columnar housing (20), wherein the locked state such that the columnar housing with clamp jaws (51) (20) does not come loose from the mouth (12) of the container (11), said vessel through said liquid passage in this locked state (23) (11) Part was evacuated, the container (11) liquid was injected into the interior, in the liquid delivery gun which is adapted to recover the excess liquid (10),
The liquid injection gun (10) includes a first passage (84) connected to the liquid passage (23) , a second passage (78) connected to the piston raising hydraulic passage (41) , and the piston lowering hydraulic passage (43 A first manifold block (60) collectively having a third passage (81) connected to
Connected to the second passage (78) and connected to the ascending-side hydraulic oil valves (106, 107) for opening and closing the second passage (78) and the third passage (81), the third passage (81) And a lower air hydraulic valve (108, 109) for opening and closing the first air passage (98) for supplying operating air for opening and closing the upper hydraulic oil valve (106, 107) and the lower air side A second manifold block (90) having a second air passage (99) for supplying working air for opening and closing the hydraulic oil valves (108, 109) ,
Said first manifold block (60) and said second manifold block (90), mounted on the upper surface of the columnar housing (20), horizontally on the first manifold block (60) and the second manifold block (90) Attach the grip handle (120) with the bar (121) ,
As the vertical line passing through the center (122) of the mouth (12) of the container (11) (123) penetrates the horizontal bar (121), that the position of the horizontal bar (121) are determined Features a liquid injection gun. When the first manifold block (60) and the second manifold block (90) are provided on the upper surface of the columnar housing (20) and the end face of the horizontal bar (121) can be seen in front, the first manifold The liquid injection according to claim 1, wherein the center of gravity of the block (60) and the center of gravity of the second manifold block (90) are arranged on the left and right with respect to the center of the columnar housing (20). gun. The liquid injection gun according to claim 1, wherein the first manifold block (60B) is made of light metal, and the second manifold block (90B) is made of steel having a specific gravity greater than that of the light metal. The liquid injection gun according to claim 1 or 2, wherein the first manifold block (60B) , the second manifold block (90B), and the grip handle (120B) are configured to be removable.

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