CN210061895U - Forming machine - Google Patents
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- CN210061895U CN210061895U CN201822241702.5U CN201822241702U CN210061895U CN 210061895 U CN210061895 U CN 210061895U CN 201822241702 U CN201822241702 U CN 201822241702U CN 210061895 U CN210061895 U CN 210061895U
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Abstract
The utility model relates to a forming machine, it includes the injection unit and closes the unit, it has at least to close the unit: a frame (1); two clamping plates (2, 3), a first clamping plate (2) being fixedly connected to the machine frame (1) and a second clamping plate (3) being arranged movably relative to the first clamping plate (2); a hydraulic quick lifting device for moving the second clamp plate (3) relative to the first clamp plate (2), having at least one first piston-cylinder arrangement (4) and at least one second piston-cylinder arrangement (5) which are arranged independently of one another in or on the closing unit; a delivery device (6) for delivering hydraulic fluid. An object of the present invention is to provide a molding machine of the type in which an excessively long structure is avoided, the possibility of leakage is reduced and the manufacturing is made with little effort and at low cost.
Description
Technical Field
The utility model relates to a forming machine.
Background
Molding machines of this type have individual piston-cylinder arrangements, the piston side or the rod side of which is always charged with hydraulic fluid (usually hydraulic oil) in order to carry out the opening or closing process. In addition, the space requirement of the piston rod of the piston-cylinder arrangement is disadvantageous.
A molding machine of the type not described is known from WO2011/079333A 2. This relates to a press without an injection unit. The first piston-cylinder arrangement and the second piston-cylinder arrangement are not arranged independently of one another in or on the shut-off unit, but rather as a common structural unit. More precisely, a mirror-symmetrical arrangement of two piston cylinder arrangements is shown. A special variant of a double-arrangement synchronization cylinder with a through-running piston rod is concerned, wherein the two piston rods have different rod diameters. The piston-cylinder arrangement with a through-going piston rod has several disadvantages with respect to a cylinder with a single piston rod (where the piston rod is arranged only on one side of the piston):
the piston-cylinder arrangement is constructed much longer,
an additional sealing system is necessary, which increases the possibility of leakage,
the piston cylinder arrangement is significantly more complex and therefore more expensive to produce.
The main disadvantage, in particular in the use of the closing unit of a molding machine with an injection unit, is that the projecting, penetrating piston rod causes great constructional problems in the direction of the injection side.
SUMMERY OF THE UTILITY MODEL
The task of the present invention is to provide a molding machine of the type in which the problems discussed above are avoided.
To this end, the present invention proposes a molding machine having an injection unit and a closing unit, wherein the closing unit has at least:
-a gantry;
-a first die plate and a second die plate, wherein the first die plate is fixedly connected with the machine frame and the second die plate is movably arranged relative to the first die plate;
-hydraulic quick-lifting means for moving the second clamp plate relative to the first clamp plate, wherein the hydraulic quick-lifting means has at least a first and a second piston-cylinder arrangement, which are arranged in or on the closing unit independently of each other;
-a delivery device for delivering hydraulic liquid;
characterized in that, with respect to the closing unit, provision is also made for:
-the first cylinder of the first piston-cylinder arrangement is connected with the first clamp plate and the first piston of the first piston-cylinder arrangement is connected with the second clamp plate via a first piston rod;
-the second cylinder of the second piston-cylinder arrangement is connected with the frame and the second piston of the second piston-cylinder arrangement is connected with the second clamp plate via a second piston rod;
the shut-off unit has a first hydraulic line which connects the delivery device in a hydraulic parallel connection with a first rod side of a first cylinder of the first piston-cylinder arrangement and a second piston side of a second cylinder of the second piston-cylinder arrangement;
the shut-off unit has a second hydraulic line which connects the delivery device in a hydraulic parallel connection with the first piston side of the first cylinder of the first piston-cylinder arrangement and the second rod side of the second cylinder of the second piston-cylinder arrangement.
Furthermore, the invention also proposes a molding machine having an injection unit and a closing unit, wherein the closing unit has at least:
-a gantry;
-a first die plate and a second die plate, wherein the first die plate is fixedly connected with the machine frame and the second die plate is movably arranged relative to the first die plate;
-hydraulic quick-lifting means for moving the second clamp plate relative to the first clamp plate, wherein the hydraulic quick-lifting means has at least a first and a second piston-cylinder arrangement, which are arranged in or on the closing unit independently of each other;
-a delivery device for delivering hydraulic liquid;
characterized in that, with respect to the closing unit, provision is also made for:
-the first cylinder of the first piston-cylinder arrangement is connected with the second clamp plate and the first piston of the first piston-cylinder arrangement is connected with the first clamp plate via a first piston rod;
-the second cylinder of the second piston-cylinder arrangement is connected with the first clamp plate and the second cylinder of the second piston-cylinder arrangement is connected with the frame via a second piston rod;
the shut-off unit has a first hydraulic line which connects the delivery device in a hydraulic parallel connection with a first piston side of the first cylinder of the first piston-cylinder arrangement and with a second rod side of the second cylinder of the second piston-cylinder arrangement;
the shut-off unit has a second hydraulic line which connects the delivery device in a hydraulic parallel connection with the first rod side of the first cylinder of the first piston-cylinder arrangement and the second piston side of the second cylinder of the second piston-cylinder arrangement.
According to a preferred embodiment of the invention, the first piston side and the first rod side of the first cylinder and the second piston side and the second rod side of the second cylinder are dimensioned such that the delivery volume of the hydraulic fluid delivered by means of the delivery device via the first hydraulic line at least substantially corresponds to the delivery volume of the hydraulic fluid delivered by means of the delivery device via the second hydraulic line.
According to a preferred embodiment of the invention, the first piston side and the first rod side of the first cylinder and the second piston side and the second rod side of the second cylinder are dimensioned such that the delivery volume of the hydraulic fluid delivered by means of the delivery device via the first hydraulic line at least substantially corresponds to the delivery volume of the hydraulic fluid delivered by means of the delivery device via the second hydraulic line.
According to a preferred embodiment of the invention, the conveying device is configured to:
-for moving the second clamp plate in a first direction, hydraulic liquid is simultaneously delivered via the first hydraulic line to a first rod side of a first cylinder of the first piston-cylinder arrangement and to a second piston side of a second cylinder of the second piston-cylinder arrangement; and is
-for moving the second clamp plate in a second direction opposite to the first direction, hydraulic liquid is simultaneously delivered via the second hydraulic line to a first piston side of a first cylinder of the first piston-cylinder arrangement and to a second rod side of a second cylinder of the second piston-cylinder arrangement.
According to a preferred embodiment of the invention, the first direction is a closing direction of the closing unit and the second direction is an opening direction of the closing unit.
According to a preferred embodiment of the invention, the first direction is an opening direction of the closing unit and the second direction is a closing direction of the closing unit.
According to a preferred embodiment of the invention, at least one compensating reservoir for hydraulic fluid is provided, which is connected to the first hydraulic line and/or the second hydraulic line.
According to a preferred embodiment of the invention, the conveying device, the first hydraulic line, the second hydraulic line, the first piston-cylinder arrangement and the second piston-cylinder arrangement form a closed hydraulic circuit.
According to a preferred embodiment of the invention, the conveying device has a motorized pump.
According to a preferred embodiment of the invention, the pump is a fixed displacement pump.
According to a preferred embodiment of the invention, a third clamping plate in the form of an intermediate plate is arranged between the first clamping plate and the second clamping plate.
According to a preferred embodiment of the invention, the closing unit is configured as a two-plate closing unit.
According to a preferred embodiment of the invention, the first piston rod of the first piston-cylinder arrangement is arranged only on one side of the first piston-cylinder arrangement and/or the second piston rod of the second piston-cylinder arrangement is arranged only on one side of the second piston-cylinder arrangement.
According to a preferred embodiment of the invention, the forming machine is configured as a horizontal machine, whereby the second clamping jaw plate is movable in horizontal direction relative to the first clamping jaw plate.
According to a preferred embodiment of the invention, the molding machine is configured as a plastic injection molding machine.
In short, the invention provides for a configuration of the first piston cylinder arrangement and of the second piston cylinder arrangement which is mirror images of one another, wherein the first variant and the second variant differ only in that the second gripper plate is connected to the piston rods of the two piston cylinder arrangements or to the cylinders of the two piston cylinder arrangements. The space requirement for the piston rod is reduced. There is the possibility of operating a closed hydraulic circuit.
Preferably, the piston-cylinder arrangements are provided with single-acting cylinders (particularly preferably the first piston-cylinder arrangement and the second piston-cylinder arrangement have the same structural manner).
It is entirely particularly preferred that the piston-cylinder arrangement is provided with a single piston rod, which is a piston rod provided only on one side of the piston.
It is particularly advantageous in terms of energy to use a metering pump for conveying the hydraulic fluid by the conveying device.
Preferably, the molding machine is configured as a horizontal machine, so that the second die plate can be moved in a horizontal direction relative to the first die plate. But it is equally conceivable to construct the machine as a vertical machine.
In a particularly preferred manner, the molding machine is designed as a plastic injection molding machine.
Preferably, a third clamping jaw plate in the form of an intermediate plate is provided. The intermediate plate can be driven by any drive means (as is known from the prior art) or by the third and fourth piston cylinder arrangements. Four possibilities are given when using the third piston-cylinder arrangement and the fourth piston-cylinder arrangement:
the cylinder of the third piston cylinder arrangement is connected with the first clamp plate, the piston rod of the third piston cylinder arrangement is connected with the intermediate plate, the cylinder of the fourth piston cylinder arrangement is connected with the machine frame and the piston rod of the fourth piston cylinder arrangement is connected with the intermediate plate; or
The cylinder of the third piston cylinder arrangement is connected with the intermediate plate, the piston rod of the third piston cylinder arrangement is connected with the first clamp plate, the cylinder of the fourth piston cylinder arrangement is connected with the intermediate plate and the piston rod of the fourth piston cylinder arrangement is connected with the frame; or
The cylinder of the third piston cylinder arrangement is connected with the second clamp plate, the piston rod of the third piston cylinder arrangement is connected with the intermediate plate, the cylinder of the fourth piston cylinder arrangement is connected with the machine frame and the piston rod of the fourth piston cylinder arrangement is connected with the intermediate plate; or
The cylinder of the third piston cylinder arrangement is connected with the intermediate plate, the piston rod of the third piston cylinder arrangement is connected with the second clamp plate, the cylinder of the fourth piston cylinder arrangement is connected with the intermediate plate and the piston rod of the fourth piston cylinder arrangement is connected with the frame.
Drawings
Embodiments of the invention are discussed with the aid of the figures. In the drawings:
figure 1 shows a first embodiment of the invention during closing;
figure 2 shows a first embodiment of the invention during opening;
fig. 3 shows a second embodiment of the invention during closing;
figure 4 shows a second embodiment of the invention during opening;
fig. 5 shows a third embodiment of the invention, in which a third clamping jaw plate in the form of an intermediate plate is provided.
Detailed Description
Fig. 1 shows a closing unit of a molding machine according to the invention in the form of a horizontal machine (according to a first variant of the invention). The injection unit is not shown as it may be constructed according to the prior art, but may be arranged to the right of the first clamping jaw 2.
It is of course also possible to provide further injection units which are arranged at further locations, as is known from the prior art.
It is of course also possible (in contrast to what is shown) to provide a further clamping template (movable or fixed).
A first clamping jaw 2 (which is fixedly connected to the machine frame 1) and a second clamping jaw 3 (which is movable relative to the first clamping jaw 2 along the machine frame 1) are arranged on the machine frame 1.
For moving the second die plate 3, a quick-lift device is provided, which has at least one first piston-cylinder arrangement 4 and at least one second piston-cylinder arrangement 5 (in practice a plurality of first piston-cylinder arrangements 4 and/or second piston-cylinder arrangements 5 may be provided).
The hydraulic fluid can be conveyed by means of the conveying device 6, which is embodied here as a motor pump.
The cylinder 41 of the first piston-cylinder arrangement 4 is connected with the first die plate 2 and the piston 42 of the first piston-cylinder arrangement 4 is connected with the second die plate 3 via a piston rod 43.
The cylinder 51 of the second piston cylinder arrangement 5 is connected with the frame 1 and the piston 52 of the second piston cylinder arrangement 5 is connected with the second clamp plate 3 via a piston rod 53. The connection of the cylinder 51 of the second piston-cylinder arrangement 5 to the machine frame 1 may also take place indirectly via a further, not shown, die plate, which is arranged fixedly or movably relative to the first die plate 2.
A first hydraulic line 7 is provided which connects the delivery device 6 hydraulically in parallel with the rod side 44 of the cylinder 41 of the first piston-cylinder arrangement 4 (via the first and third sub-lines 71, 73 of the first hydraulic line 7) and the piston side 55 of the cylinder 51 of the second piston-cylinder arrangement 5 (via the first and second sub-lines 71, 72 of the first hydraulic line 7).
A second hydraulic line 8 is provided which connects the delivery device 6 hydraulically in parallel with the piston side 45 of the cylinder 41 of the first piston-cylinder arrangement 4 (via the first and second partial lines 81, 82 of the second hydraulic line 8) and the rod side 54 of the cylinder 51 of the second piston-cylinder arrangement 5 (via the first and third partial lines 81, 83 of the second hydraulic line 8).
The diameters of the piston side 45, 55 and the rod side 44, 54 of the cylinder 41, 51 and of the piston 42, 52 and the piston rod 43, 53 are dimensioned such that the delivery volume of the hydraulic fluid delivered by the delivery device 6 via the first hydraulic line 7 at least substantially corresponds to the delivery volume of the hydraulic fluid delivered by the delivery device 6 via the second hydraulic line 8. This enables a closed circuit for the hydraulic liquid. The relationship for the delivery volume Q delivered by the delivery device 6 as a whole is given by way of example in fig. 1 and 2.
In order to compensate for the different dimensions, at least one compensation reservoir (not shown) for hydraulic fluid can be provided, which is connected to the first hydraulic line 7 and/or the second hydraulic line 8. The compensation reservoir can be designed, for example, as a pressure accumulator bottle known per se.
The conveying device 6 is designed to: for moving the second clamp plate 3 in the first direction (here: closing direction), hydraulic liquid is simultaneously delivered via the first hydraulic line 7 to the rod side 44 of the cylinder 41 of the first piston-cylinder arrangement 4 and to the piston side 55 of the cylinder 51 of the second piston-cylinder arrangement 5 (cf. fig. 1). The hydraulic liquid which is displaced from the piston side 45 of the first piston cylinder arrangement 4 and the rod side 54 of the second piston cylinder arrangement 5 when the second die plate 3 is moved in the closing direction reaches the delivery device via the second hydraulic line 8.
The conveying device 6 is designed to: for moving the second jaw plate 3 in a second direction (opening direction) opposite to the first direction, hydraulic liquid is simultaneously delivered via the second hydraulic line 8 to the piston side 45 of the cylinder 41 of the first piston-cylinder arrangement 4 and to the rod side 54 of the cylinder 51 of the second piston-cylinder arrangement 5 (cf. fig. 2). The hydraulic liquid which is displaced from the rod side 44 of the first piston cylinder arrangement 4 and from the piston side 55 of the second piston cylinder arrangement 5 when the second die plate 3 is moved in the opening direction reaches the delivery device via the first hydraulic line 7.
The second variant of the invention shown in fig. 3 and 4 differs from the first variant shown in fig. 1 and 2 only in that, instead of the piston rods 43, 53 being connected to the second die plate 3 and the cylinders 41, 51 being connected to the first die plate 2, the opposite construction is provided.
In a second variant of the invention, the conveying device 6 is designed to:
for moving the second jaw plate 3 in the first direction (here: the opening direction), hydraulic liquid is simultaneously delivered via the first hydraulic line 7 to the piston side 45 of the cylinder 41 of the first piston-cylinder arrangement 4 and to the rod side 54 of the cylinder 51 of the second piston-cylinder arrangement 5 (cf. fig. 4); and is
For moving the second jaw plate 3 in a second direction (closing direction) opposite to the first direction, hydraulic liquid is simultaneously delivered via the second hydraulic line 8 to the rod side 44 of the cylinder 41 of the first piston-cylinder arrangement 4 and to the piston side 55 of the cylinder 51 of the second piston-cylinder arrangement 5 (cf. fig. 3).
In addition to the differences discussed above with regard to the construction, all embodiments made with regard to fig. 1 and 2 also apply with regard to fig. 3 and 4.
In the embodiment of fig. 5, a third clamping jaw plate in the form of an intermediate plate 9 is provided. Both variants of the invention can also be used here. This embodiment is particularly suitable for use with intermediate plates 9, rotating cubes or the like. The intermediate plate 9 shown here can be driven by any drive (as is known from the prior art) or as in fig. 1 to 4.
List of reference numerals
1 machine frame
2 first clamp template (fixedly connected with the frame)
3 second clamping plate (movably arranged relative to the first clamping plate)
4 first piston cylinder configuration structure
41 cylinder of a first piston-cylinder arrangement
42 piston of a first piston-cylinder arrangement
43 piston rod of a first piston-cylinder arrangement
44 rod side of the piston of the first piston-cylinder arrangement
45 piston side of a piston of a first piston-cylinder arrangement
5 second piston cylinder arrangement
51 cylinder of second piston-cylinder arrangement
52 piston of a second piston-cylinder arrangement
53 piston rod of second piston cylinder arrangement
54 rod side of the piston of the second piston-cylinder arrangement
55 piston side of piston of second piston-cylinder arrangement
6 conveying device
7 first hydraulic line
71 first sub-line of a first hydraulic line
72 second sub-line of the first hydraulic line
73 third sub-line of the first hydraulic line
8 second hydraulic line
81 first sub-line of the second hydraulic line
82 second sub-line of the second hydraulic line
83 third sub-line of the second hydraulic line
9 middle plate
Q delivered volume of the device.
Claims (28)
1. A molding machine having an injection unit and a closing unit, wherein the closing unit has at least:
-a gantry (1);
-a first die plate (2) and a second die plate (3), wherein the first die plate (2) is fixedly connected with the machine frame (1) and the second die plate (3) is movably arranged relative to the first die plate (2);
-a hydraulic quick lifting device for moving the second clamp plate (3) relative to the first clamp plate (2), wherein the hydraulic quick lifting device has at least a first piston-cylinder arrangement (4) and a second piston-cylinder arrangement (5) which are arranged in or on the closing unit independently of each other;
-a delivery device (6) for delivering hydraulic liquid;
characterized in that, with respect to the closing unit, provision is also made for:
-a first cylinder (41) of the first piston-cylinder arrangement (4) is connected with the first die plate (2) and a first piston (42) of the first piston-cylinder arrangement (4) is connected with the second die plate (3) via a first piston rod (43);
-a second cylinder (51) of the second piston-cylinder arrangement (5) is connected with the frame (1) and a second piston (52) of the second piston-cylinder arrangement (5) is connected with a second clamp plate (3) via a second piston rod (53);
-the shut-off unit has a first hydraulic line (7) connecting the delivery device (6) in a hydraulic parallel connection with a first rod side (44) of a first cylinder (41) of the first piston-cylinder arrangement (4) and a second piston side (55) of a second cylinder (51) of the second piston-cylinder arrangement (5);
-the shut-off unit has a second hydraulic line (8) connecting the delivery device (6) in a hydraulic parallel connection with a first piston side (45) of a first cylinder (41) of the first piston-cylinder arrangement (4) and a second rod side (54) of a second cylinder (51) of the second piston-cylinder arrangement (5).
2. The molding machine according to claim 1, wherein the first piston side (45) and the first rod side (44) of the first cylinder (41) and the second piston side (55) and the second rod side (54) of the second cylinder (51) are dimensioned such that a delivery volume of hydraulic liquid delivered by means of the delivery device (6) via the first hydraulic line (7) corresponds at least to a delivery volume of hydraulic liquid delivered by means of the delivery device (6) via the second hydraulic line (8).
3. The molding machine according to claim 1 or 2, wherein the conveying device (6) is configured for:
-for moving the second clamp plate (3) in a first direction, hydraulic liquid is simultaneously delivered via the first hydraulic line (7) to a first rod side (44) of a first cylinder (41) of the first piston-cylinder arrangement (4) and to a second piston side (55) of a second cylinder (51) of the second piston-cylinder arrangement (5); and is
-for moving the second jaw plate (3) in a second direction opposite to the first direction, hydraulic liquid is simultaneously delivered via the second hydraulic line (8) to a first piston side (45) of a first cylinder (41) of the first piston-cylinder arrangement (4) and to a second rod side (54) of a second cylinder (51) of the second piston-cylinder arrangement (5).
4. The molding machine according to claim 3, wherein the first direction is a closing direction of the closing unit and the second direction is an opening direction of the closing unit.
5. The molding machine according to claim 3, wherein the first direction is an opening direction of the closing unit and the second direction is a closing direction of the closing unit.
6. Moulding machine according to claim 1 or 2, wherein at least one compensation reservoir for hydraulic liquid is provided which is connected to the first hydraulic line (7) and/or the second hydraulic line (8).
7. Moulding machine according to claim 1 or 2, wherein the transport device (6), the first hydraulic line (7), the second hydraulic line (8), the first piston-cylinder arrangement (4) and the second piston-cylinder arrangement (5) form a closed hydraulic circuit.
8. Moulding machine according to claim 1 or 2, wherein said conveying means (6) have a motorized pump.
9. The molding machine of claim 8 wherein said pump is a fixed displacement pump.
10. A moulding machine according to claim 1 or 2, wherein a third clamping jaw in the form of an intermediate plate (9) is arranged between the first clamping jaw (2) and the second clamping jaw (3).
11. The molding machine of claim 1 or 2, wherein the closing unit is configured as a two-plate closing unit.
12. Moulding machine according to claim 1 or 2, wherein the first piston rod (43) of the first piston-cylinder arrangement (4) is provided only on one side of the first piston (42) of the first piston-cylinder arrangement (4) and/or the second piston rod (53) of the second piston-cylinder arrangement (5) is provided only on one side of the second piston (52) of the second piston-cylinder arrangement (5).
13. Moulding machine according to claim 1 or 2, wherein the moulding machine is configured as a horizontal machine, whereby the second jaw plate (3) is movable in a horizontal direction relative to the first jaw plate (2).
14. The molding machine of claim 1 or 2, wherein the molding machine is configured as a plastic injection molding machine.
15. A molding machine having an injection unit and a closing unit, wherein the closing unit has at least:
-a gantry (1);
-a first die plate (2) and a second die plate (3), wherein the first die plate (2) is fixedly connected with the machine frame (1) and the second die plate (3) is movably arranged relative to the first die plate (2);
-a hydraulic quick lifting device for moving the second clamp plate (3) relative to the first clamp plate (2), wherein the hydraulic quick lifting device has at least a first piston-cylinder arrangement (4) and a second piston-cylinder arrangement (5) which are arranged in or on the closing unit independently of each other;
-a delivery device (6) for delivering hydraulic liquid;
characterized in that, with respect to the closing unit, provision is also made for:
-the first cylinder (41) of the first piston-cylinder arrangement (4) is connected with the second die plate (3) and the first piston (42) of the first piston-cylinder arrangement (4) is connected with the first die plate (2) via a first piston rod (43);
-the second cylinder (51) of the second piston-cylinder arrangement (5) is connected with the first clamp plate (2) and the second cylinder (51) of the second piston-cylinder arrangement (5) is connected with the machine frame (1) via a second piston rod (53);
-the shut-off unit has a first hydraulic line (7) connecting a delivery device (6) in a hydraulic parallel connection with a first piston side (45) of a first cylinder (41) of the first piston-cylinder arrangement (4) and a second rod side (54) of a second cylinder (51) of the second piston-cylinder arrangement (5);
-the shut-off unit has a second hydraulic line (8) connecting a delivery device (6) in a hydraulic parallel connection with a first rod side (44) of a first cylinder (41) of the first piston-cylinder arrangement (4) and a second piston side (55) of a second cylinder (51) of the second piston-cylinder arrangement (5).
16. The molding machine according to claim 15, wherein the first piston side (45) and the first rod side (44) of the first cylinder (41) and the second piston side (55) and the second rod side (54) of the second cylinder (51) are dimensioned such that a delivery volume of hydraulic liquid delivered by means of the delivery device (6) via the first hydraulic line (7) at least corresponds to a delivery volume of hydraulic liquid delivered by means of the delivery device (6) via the second hydraulic line (8).
17. The molding machine according to claim 15 or 16, wherein the conveying device (6) is configured for:
-for moving the second clamp plate (3) in a first direction, hydraulic liquid is simultaneously delivered via the first hydraulic line (7) to a first rod side (44) of a first cylinder (41) of the first piston-cylinder arrangement (4) and to a second piston side (55) of a second cylinder (51) of the second piston-cylinder arrangement (5); and is
-for moving the second jaw plate (3) in a second direction opposite to the first direction, hydraulic liquid is simultaneously delivered via the second hydraulic line (8) to a first piston side (45) of a first cylinder (41) of the first piston-cylinder arrangement (4) and to a second rod side (54) of a second cylinder (51) of the second piston-cylinder arrangement (5).
18. The molding machine of claim 17, wherein the first direction is a closing direction of the closing unit and the second direction is an opening direction of the closing unit.
19. The molding machine according to claim 17, wherein the first direction is an opening direction of the closing unit and the second direction is a closing direction of the closing unit.
20. A molding machine according to claim 15 or 16, wherein at least one compensating reservoir for hydraulic liquid is provided which is connected to the first hydraulic line (7) and/or the second hydraulic line (8).
21. Moulding machine according to claim 15 or 16, wherein the transport device (6), the first hydraulic line (7), the second hydraulic line (8), the first piston-cylinder arrangement (4) and the second piston-cylinder arrangement (5) form a closed hydraulic circuit.
22. Moulding machine according to claim 15 or 16, wherein the conveying device (6) has a motorized pump.
23. The molding machine of claim 22 wherein said pump is a fixed displacement pump.
24. A moulding machine according to claim 15 or 16, wherein a third clamping jaw plate in the form of an intermediate plate (9) is provided between the first clamping jaw plate (2) and the second clamping jaw plate (3).
25. The molding machine of claim 15 or 16, wherein the closing unit is configured as a two-plate closing unit.
26. Moulding machine according to claim 15 or 16, wherein the first piston rod (43) of the first piston-cylinder arrangement (4) is provided only on one side of the first piston (42) of the first piston-cylinder arrangement (4) and/or the second piston rod (53) of the second piston-cylinder arrangement (5) is provided only on one side of the second piston (52) of the second piston-cylinder arrangement (5).
27. Moulding machine according to claim 15 or 16, wherein the moulding machine is configured as a horizontal machine, whereby the second jaw plate (3) is movable in a horizontal direction relative to the first jaw plate (2).
28. The molding machine of claim 15 or 16, wherein the molding machine is configured as a plastic injection molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241702.5U CN210061895U (en) | 2018-12-28 | 2018-12-28 | Forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241702.5U CN210061895U (en) | 2018-12-28 | 2018-12-28 | Forming machine |
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| Publication Number | Publication Date |
|---|---|
| CN210061895U true CN210061895U (en) | 2020-02-14 |
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ID=69426570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822241702.5U Active CN210061895U (en) | 2018-12-28 | 2018-12-28 | Forming machine |
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| Country | Link |
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| CN (1) | CN210061895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752500A (en) * | 2020-06-05 | 2021-12-07 | 恩格尔奥地利有限公司 | Forming machine with closed hydraulic drive system |
-
2018
- 2018-12-28 CN CN201822241702.5U patent/CN210061895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752500A (en) * | 2020-06-05 | 2021-12-07 | 恩格尔奥地利有限公司 | Forming machine with closed hydraulic drive system |
| CN113752500B (en) * | 2020-06-05 | 2023-06-27 | 恩格尔奥地利有限公司 | Forming machine with closed hydraulic drive system |
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