KR200202138Y1 - Device for pressing the cartridge containing plastic material - Google Patents

Abstract

Two cartridge supports each parallel to receive one cartridge are formed in a housing which is open, the front outlet of the cartridge is connectable with a mixing nozzle or discharge nozzle which can be supported by the housing, and with a cartridge longitudinal extension The parallel movable thrust piston is axially adjustable in the housing, the handle protrudes from the housing, the operation is simple and at low energy costs, and the hard-flowing material is easily removed from the cartridge. In order to provide a device for compressing a cartridge comprising a plastic material using a thrust piston acting on the bottom of the cartridge, which is configured to be pushable, the thrust piston 2 is completely empty from the starting position. Electric motor type to move to end position to lose It is proposed that the drive device 6 is integrated into the housing 3.

Description

DEVICE FOR PRESSING THE CARTRIDGE CONTAINING PLASTIC MATERIAL}

The present invention relates, in particular, to an apparatus for compressing a cartridge comprising a plastic material or paste material usable for oto plastic purposes using a thrust piston acting on the bottom of the cartridge, each containing one cartridge. At least one-preferably two parallel-cartridge support is formed in the housing which is open, the front outlet of the cartridge is engageable with a mixing nozzle or discharge nozzle which can be supported in the housing, the cartridge longitudinal A thrust piston movable in parallel with the extension is axially adjustable in the housing and the handle also protrudes from the housing approximately perpendicular to the longitudinal extension of the housing.

Devices of this type for manual operation are known in the prior art. In the device, the pivot handle is coupled with the handle and the thrust piston can be manually moved step by step using the handle to push the paste material out of the cartridge. The operation of the device in this manner is relatively expensive, especially when the hard-flowing paste material is pushed out of the corresponding cartridge.

It is an object of the present invention to provide a device of the method according to the present invention which, starting from the prior art, can be operated simply and at low cost, and can also simply push hard material out of the cartridge.

1 is a schematic view of an apparatus according to the present invention.

Figure 2 is a side view showing the individual parts of the device according to the present invention.

3 and 4 are schematic and plan views showing individual components.

5 is a plan view from above of the individual parts of the device according to the present invention;

6 is a side view of an individual part from the side.

7 is a side view of the details.

8 is a plan view of details.

9 and 10 show details in the operating position viewed from the same side as FIGS. 7 and 8;

Explanation of symbols on the main parts of the drawings

1: cartridge 2: piston

3: housing 4: nozzle

5 handle 6 drive unit

7: operation switch 8: electric motor

9: gear 10: shaft

11: tension rod 12: yoke (yoke)

13: piston rod 14: cartridge support

17 coupling 18 ball bearing

19 coupling 20 coupling bushing

21 coupling insert 22 longitudinal slot

23: stopper 24: spiral spring

To achieve this object, it is proposed to integrate an electric motor-driven device in the housing that can move the thrust piston from the starting position to the end position where the cartridge is completely empty.

In this case, it is preferable that a stop switch that can forcibly shut off the drive device when the end position is reached is disposed in the housing.

It is also preferred that an operating switch, which can be operated manually from the outside, for disconnecting and connecting the drive device is arranged on the handle.

According to the embodiment according to the present invention, it is possible to operate the electric motorized drive device for pushing the thrust piston forward by simply operating the actuation switch. This does not actually require manual force. Particularly in an apparatus with two cartridges the compressed material is necessarily mixed in the mixing nozzle. In this case, a predetermined uniform pressure is ensured by the electric motor type drive device, whereby even material discharge is achieved. The electric motor-driven device may optionally be equipped with a speed stage that can be preset in stages or without stages. According to the embodiment according to the present invention, it is possible to handle a particularly difficult material without problems. It is preferably protected against overload when the end position is reached by means of a stop switch arranged.

According to a particularly preferred variant, the drive device consists of an electric motor with gears, the members are arranged on the handle, the driven shaft of the gears being releasably coupled with one shaft rotatably supported in the housing and The shaft is coupled with a yoke that joins the piston rod end of the thrust piston via a flexible tension rod, in particular a steel band. In this case, the tension rod extends approximately in the same direction as the piston rod, and in the starting position it is unwound from the shaft and wound around the shaft by the drive until the end position is reached.

The device allows for electric motorized operation and the movement of thrust pistons in a very low cost and simple manner, in which case only a few basic members are safe to operate. In order to facilitate the adjustment and configuration of the device, the tension rod must be able to be moved manually from the end position to the starting position, in which case the yoke is provided with a single handle, which allows the shaft to be moved from the driven shaft. The yoke can be manually moved to the starting position in the disconnected state.

For the same purpose, the housing preferably comprises a lower piston comprising a handle, a cartridge support (in the form of a half shell) and a lower housing shell having a mixing nozzle, and a thrust piston with a piston rod, shaft, tension rod and yoke. The upper part is pivotally supported on the lower part, the upper part covering the lower part in the closed state, the shaft being coupled with the driven shaft while the shaft is separated from the driven shaft in the open pivot state.

Also more preferably, a cylindrical pointed rivet head coupling with a coupling shaft off the circle is fixed to the driven shaft and the shaft, which coupling shaft can be inserted into the correspondingly formed shaft or coupling of the driven shaft. .

In order to be able to simply match the working length of the tension rod to the advancement of the thrust piston, it is proposed that the end of the tension rod is fixed to the shaft and yoke by a clamp.

According to the present invention, a device which can be operated simply is used, in order for the device to start, the housing halves are joined together and braked by a locking device or the like in the above state, and the locking device is simply detached so that the device housing can be easily opened. It should be possible.

Insertion of the cartridge is preferably made with the housing open. When the cartridge is inserted into the corresponding receptacle and the device is closed, the electric motorized drive is operatively coupled by the driven shaft with a unique drive shaft for the thrust piston drive. The drive can be activated by actuating the corresponding switch on the handle, in which case the tension rod is wound on the corresponding shaft and the yoke moves forward with the thrust piston in the direction of the cartridge bottom by the piston rod on the shaft. The material in the cartridge is ejected from the mixing nozzle by the next operation. When the end position is reached, a stop switch is preferably provided, in which case another spring can be provided which reduces the load, pushing the thrust piston slightly back from the end position. The device housing can then be opened, in which case the shaft is separated from the driven shaft by an opening action. As the yoke handle is then moved, the piston rod returns to its initial position with the thrust piston and the tension rod is released from the shaft. The device can be freshly used after replacing the used cartridge with a new cartridge and after closing the device housing.

In order to facilitate and secure the coupling of the drive device when the housing is closed, in accordance with the present invention, the driven shaft of the gear device is an axially movable elastic coupling in which the inner cross section is polygonal or the cross section is out of the circle. Coupling inserts having the same outer cross section, which are formed or fixed to the shaft, can be inserted into the bushing. In this case, the coupling bushing is moved axially by the coupling insert when the housing is closed and when the coupling insert cannot be inserted into the coupling bushing, and the coupling bushing is rotated when the driven shaft rotates. The cross sections of the coupling inserts are glided over the coupling inserts for the purpose of being rotated together in the same aligned state.

In this case, preferably, one bushing having a polygonal outer cross section is inserted into the shaft end and fixed in the inserted state as a coupling insert.

Also preferably, one bushing is inserted over the driven shaft end of the gear so as to be axially movable, in which case the bushing is positively inserted at the shaft end, the partial region having an inner cross section with an outer cross section of the coupling insert. A spring, in particular a helical compression spring, is provided between the gear housing and the end of the bushing, which projects through the shaft end corresponding to and away from the insertion portion of the coupling insert.

A very brief embodiment of the present invention is described in detail below with reference to the drawings.

In the drawings, there is shown a device for pressing plastic materials or similar paste materials which can be used, in particular for oto plastic purposes. Here, for example, two-component materials are dealt with. The paste material is in the cartridge 1 schematically shown in FIGS. 1 and 5. The material inside the cartridge 1 can be pushed out of the cartridge into the foil by a thrust piston 2 acting on the bottom of the cartridge. For this purpose, the housing of the device is provided with two cartridge supports-two parallel to each other-for receiving one cartridge 1. A mixing nozzle or discharge nozzle 4 is arranged in front of the cartridge 1 of the housing 3 (on the front outlet). The thrust piston 2, which can be pushed in parallel with the longitudinal extension of the cartridge, proceeds axially adjustable in the housing 3, in which case the handle 5 is perpendicular to the longitudinal extension. It protrudes from the housing 3.

An electric motorized drive 6 is integrated in the housing 3 that can move the thrust piston 2, for example, from the starting position shown in FIG. 5 to the end position where the cartridge 1 is completely empty.

In the housing 3 there is a stop switch, not shown in the figure, which shuts off the drive device 6 when the end position is reached.

The handle 5 is arranged with a manually accessible actuating switch 7 from the outside for connecting and disconnecting the drive device 6.

The drive device 6 consists of an electric motor 8 with a gear 9, which members are arranged inside the handle 5 of the housing 3. The driven shaft of the gear 9 is disassembledly coupled by a shaft 10 rotatably supported in the housing 3. The shaft 10 is coupled with a yoke 12 which connects the end of the piston rod 13 of the thrust piston 2 via a flexible tension rod 11, shown in the embodiment by a steel band. The tension rod 11 extends in approximately the same direction as the piston rod 13, in particular between the rods.

The tension rod 11 is released from the shaft 10 in the starting position shown in FIG. 5, while the tension rod 11 is in the shaft 10 until the end position is reached by the operation of the drive device 6. Can be wound. Also in FIG. 5 the shaft 10 rotates counterclockwise.

The operation of returning the tension rod 11 from the end position back to the starting position is also possible manually. To this end, the yoke 12 is provided with a handle not shown in the drawing, and the yoke 12 is manually moved to the starting position with the shaft 10 uncoupled from the driven shaft by the handle. Can be moved. At this time, the shaft 10 is rotated freely in the clockwise direction, thereby again reaching the position according to FIG. 5.

The housing 3 preferably comprises a lower, in particular a handle 5, a lower housing shell with a cartridge support 14 in the form of a half shell and a mixing nozzle 4, and a piston rod 13, a shaft 10 and The thrust piston 2 and the yoke 12 together with the tension rod 11 consist of an upper part rotatably supported. In the closed state the upper part covers the lower part, the shaft 10 is coupled with the driven shaft of the drive device 6, while in the open pivot the shaft 10 is separated from the driven axis of the drive device 6. . The driven shaft preferably comprises a cylindrical pointed rivet head coupling 17 with an off-link link shaft, which link shaft can be inserted into the coupling 19 of the correspondingly formed shaft 10. This is explained with reference to FIGS. 2 to 4.

As can be seen in particular in FIG. 5, the ends of the tension rod 11 are fixed to the shaft 10 and the yoke 12 by clamps.

As can be seen in particular in FIG. 6, the shaft 10 is supported in the upper housing shell via a ball bearing 18. The ball bearing is again shown in FIG. 2. In this case, the component parts 3 are housings or parts fixed to the housings.

In order to facilitate the coupling of the device when the housing is closed, the driven shaft of the gear 9 has a polygonal internal cross section or an axially moving elastic coupling bushing 20 with a cross section off the circle. A coupling insert 21, which is formed in the form of a shaft and is fixed to the shaft 10 or whose outer cross section is the same as the coupling bushing, can be inserted into the bushing. The shaft 10 is engaged with the piston bar of the protective piston of the device through one flexible tension rod.

The coupling bushing 20 is shown with the housing in the closed state (the position shown in FIGS. 7 to 10) and the coupling insert 21 can not be inserted into the coupling bushing 20. The reason is that the coupling inserts are rotated relative to the coupling bushing 20 so that the cross sections do not match each other, and the coupling inserts are axially resilient as shown in the figures according to FIGS. 7 and 2. Because it moved. When the driven shaft of the gear 9 rotates, the coupling bushing 20 is rotated until the inner cross section matches the outer cross section of the coupling insert 21. In this position, the coupling bushing 20 is elastically supported and glided onto the coupling insert 21 to form a position according to FIGS. 9 and 10. The parts are thereby rotated positively together.

In an embodiment the bushing 20 having a polygonal outer cross section is inserted at the end of the shaft 10 and secured by a stud screw, in which case the stud screw is preferably arranged underneath so that the screw is inserted into the coupling. It is not forward in the radial direction than the portion 21.

One corresponding bushing 20 is inserted into the driven shaft end of the gear 9 and supported to move axially. For this purpose, a longitudinal slot 22 is formed in the bushing wall and one screw stopper 23. By inserting into the slot, the travel path of the bushing 20 is restricted. In addition, the bushing 20 is supported to move axially, in which case the bushing is positively inserted into the shaft end of the gear 9 and one partial region protrudes axially through the shaft end, The inner cross section corresponds to the outer cross section of the coupling insert 21. In this case, a spring, in particular a helical compression spring 24, is provided between the end of the bushing 20 and the gear 9 housing away from the insertion portion of the coupling insert 21.

If the housing of the device is closed and the cross sectional shape of the coupling insert 21 does not coincide with the inner cross section of the bushing 20, it is in a position according to FIGS. 7 and 8. In this case the bushing 20 moves down against the spring 24 force in FIG. 7, and the coupling insert is disposed in front of the bushing 20. When the coupling bushing is rotated by the rotation of the driven shaft of the gear 9, it is brought to a position corresponding to the position according to FIGS. 9 and 10. In this position the bushing 20 is moved up relatively by the spring force of the spring 24 according to FIG. 9, so that the coupling insert with the polygonal end region is inserted into the correspondingly formed bushing, thereby the part. Positive coupling is made between them.

If the device is to be opened, the coupling insert is easily glided from the bushing 20 during the opening operation of the housing part, thereby separating the drive device.

The present invention is not limited to the embodiments, and various modifications can be made within the disclosed scope.

All new and detailed features and combinations described in the specification and / or drawings are preferred for the present invention.

By the device according to the present invention, it is possible to push the hard-flowing material to the cartridge with a simple and low cost.

Claims (11)

One or more cartridge supports for receiving one cartridge each are formed in a housing that is open, the front outlet of the cartridge is engageable with a mixing nozzle or discharge nozzle that can be supported by the housing and parallel to the cartridge longitudinal extension. A plastic material or paste material, in particular usable for auto plastic purposes, wherein the movable thrust piston is axially adjustable in the housing and the handle is projected from the housing approximately perpendicular to the longitudinal extension of the housing. An apparatus for compressing a cartridge including a pressure using a thrust piston acting on the bottom of the cartridge, An electric motorized drive (6) is incorporated in the housing (3) by which the drive device can move the thrust piston (2) from the starting position to the end position where the cartridge is completely empty. 2. Device according to claim 1, characterized in that a stop switch is arranged in the housing (3) that can forcibly shut off the drive (6) when the end position is reached. 2. Device according to claim 1, characterized in that a switch is provided on the handle which is operable manually from the outside for blocking and connecting the drive device (6). 2. The drive device (6) according to claim 1, wherein the drive device (6) consists of one electric motor with a gear (9), the members being arranged on the handle (5), the driven shaft of the gear (9) being in the housing (3). Releasably coupled with one rotatably supported shaft 10, which shaft engages the piston rod 13 of the thrust piston 2 via one flexible tension rod 11, such as a steel band. Combined with one yoke 12, the tension rod 11 extends approximately in the same direction as the piston rod 13, in the starting position until it is released from the shaft 10 and reaches the end position. Device (6) which can be wound on the shaft (10). 2. The tension rod (11) according to claim 1, wherein the tension rod (11) can be moved manually from the end position to the starting position, one handle is formed in the yoke, and the shaft (10) is separated from the driven shaft by the handle. In which the yoke (12) can be moved manually to the starting position. The lower part of claim 1, wherein the housing (3) comprises a lower housing shell having a handle (5), a cartridge support (in the form of a half shell), and a mixing nozzle (4), and a piston rod (13). ), The top being pivotally supported at the bottom, supporting the thrust piston together with the shaft 10, the tension rod 11 and the yoke 12, the top covering the bottom in the closed state, The shaft (10) is coupled with the driven shaft while the shaft (10) is separated from the driven shaft while the housing is open. 7. A cylindrical pointed rivet head coupling with a coupling shaft out of the circle is fixed to the driven shaft and / or shaft 10, wherein the coupling shaft is a correspondingly formed shaft. 10 or an apparatus which can be inserted into a coupling of a driven shaft. 7. The device according to claim 1, wherein the end of the tension rod is fixed to the shaft and to the yoke by a clamp. 8. 7. The axially movable resilient coupling bushing (20) according to any one of the preceding claims, wherein the driven shaft of the gear device (9) is polygonal in cross section or deviated from a circle. And a coupling insert having the same outer cross section, which is formed or fixed to the shaft 10, can be inserted into the bushing, the coupling bushing 20 having the housing closed and the coupling insert ( If the 21 cannot be inserted into the coupling bushing 20, it is moved axially by the coupling insert, and the coupling bushing 20 is a cross section of the coupling insert 21 when the driven shaft is rotated. Gliding over the coupling insert for the purpose of being rotated together in this identically aligned state. 10. The device according to claim 9, wherein one bushing having a polygonal outer cross section is inserted at the end of the shaft (10) as a coupling insert (21) and fixed in the inserted state. 10. A bushing (20) according to claim 9, wherein one bushing (20) is inserted over the driven shaft end of the gear (9) to be axially movable, the bushing (20) is positively inserted at the shaft end, and the partial region is internal The cross section protrudes through the shaft end corresponding to the outer cross section of the coupling insert, and between the end of the bushing and the gear housing away from the insert of the coupling insert 21 there is a spring, such as a helical compression spring. Characterized in that the device.