CN107253269B

CN107253269B - Mould opening and closing lifting device of high-pressure forming machine

Info

Publication number: CN107253269B
Application number: CN201710662734.XA
Authority: CN
Inventors: 赵祥启; 王文明; 栗自斌
Original assignee: Tangshan Hexiang Intelligent Technology Co Ltd
Current assignee: Tangshan Hexiang Intelligent Technology Co Ltd
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2023-06-13
Anticipated expiration: 2037-08-04
Also published as: CN107253269A

Abstract

The utility model provides a high pressure forming machine die opening and closing elevating gear, includes the frame, locates crossbeam in this frame, is located the model clamp plate of this crossbeam below interval a distance, drive the drive arrangement that the model clamp plate risees and descends, wherein be equipped with the linear lifting guide in the frame, make drive arrangement drive the model clamp plate is followed linear lifting guide goes up and down to remove. The rack is also provided with an auxiliary synchronous guide device which comprises a rack, a gear and a synchronous shaft; the rack is installed on two left and right stand posts of frame, the both ends of model clamp plate are fixed with a bearing respectively, the both ends of synchronizing shaft wear to locate the shaft hole of bearing the gear is installed respectively to two ends of synchronizing shaft, the gear is along the rack rolls, just the gear with rack intermeshing. According to the invention, through the cooperation of the linear lifting guide rail and the auxiliary synchronous guide device, the lifting stability and the clamping tightness are ensured, and the blank yield is obviously improved.

Description

Mould opening and closing lifting device of high-pressure forming machine

Technical Field

The invention relates to the technical field of high-pressure grouting forming equipment for ceramic production, in particular to an opening and closing die lifting device of a high-pressure forming machine, which is used for realizing the die closing and opening functions of an upper die and a lower die in the high-pressure grouting process.

Background

At present, most of large basin high pressure forming machines of ceramic manufacturing enterprises at home and abroad adopt a horizontal transverse die opening or closing mode. This approach is more limited: firstly, the model installation difficulty is high, secondly, the model is easy to be assembled and disassembled, thirdly, because the horizontal mold for opening and closing is required to be lifted, the lifting cross beam is easy to bend, slurry leakage occurs during high-pressure grouting, the problems are necessary to increase the maintenance cost of the mold, the working efficiency is caused to slide down seriously, and the high-quality product rate of the blank body is obviously reduced. In the prior lifting type die closing and opening high-pressure forming equipment, although lifting type die closing and opening operation is adopted, the upper die frame fixing plate mainly provides power through a lifting device, and guide columns arranged on a frame are used for guiding, so that the upper die frame is ensured to stably and vertically lift in a straight line. The lifting device in the prior art mainly comprises the lifting machine and the guide post, wherein the guide post is a rod-shaped structure arranged on the left side and the right side of the frame, the frame cross beam is provided with a guide hole corresponding to the rod-shaped structure, and the guide hole plays a role in guiding and stably feeding the mould in a vertical linear lifting manner along the rod-shaped structure.

However, for large basins or other large ceramic articles, such a single guiding structure does not provide an effective guiding and smooth action. In addition, as the frequency of use is increased, the guide post and the guide hole can be worn and deformed, accurate guide can not be realized, the forming die for die assembly is provided with a gap, and the glue leakage phenomenon can occur in the subsequent high-pressure glue injection process. Because the high-pressure glue injection technology has extremely high sealing performance requirements on the forming die after die assembly, the gaps at all can leak slurry in the morning, and products are scrapped. In addition, the existing guide structure has the defects that after the guide post is the upright post body of the machine frame and the guide post and the guide hole are worn, if the guide post and the guide hole are to be replaced, the upright post of the machine frame or the upper die carrier fixing plate and other large-size components need to be integrally abandoned or replaced, the maintenance difficulty is high, and more importantly, the waste of materials and resources can be caused.

Disclosure of Invention

In order to solve the defects existing in the mold opening and closing process of the existing high-pressure forming machine, the invention provides the mold opening and closing lifting device of the high-pressure forming machine, which can achieve more accurate and stable guiding, and the lifting device can enable the upper mold to lift linearly and stably and has the function of accurate guiding.

In order to achieve the above purpose, the technical scheme adopted by the invention comprises the following steps:

the mold opening and closing lifting device of the high-pressure forming machine comprises a frame, a cross beam arranged on the frame, a mold pressing plate arranged below the cross beam at a certain distance, and a driving device for driving the mold pressing plate to lift and descend, wherein a linear lifting guide rail is arranged on the frame, so that the driving device drives the mold pressing plate to lift along the linear lifting guide rail, and the frame comprises a left upright post and a right upright post; the mold opening and closing lifting device further comprises an auxiliary synchronous guiding device, wherein the auxiliary synchronous guiding device comprises a rack, a gear and a synchronous shaft; the rack is installed on two left and right stand posts of frame, the both ends of model clamp plate are fixed with a bearing respectively, the both ends of synchronizing shaft wear to locate the shaft hole of bearing the gear is installed respectively to two ends of synchronizing shaft, the gear is along the rack rolls, just the gear with rack intermeshing.

According to one embodiment of the invention, the driving device is a lifting hydraulic cylinder, one end of the lifting hydraulic cylinder is arranged on the cross beam, and a piston rod of the lifting hydraulic cylinder is fixedly connected with the model pressing plate.

According to one embodiment of the invention, the bearing is a seated bearing, which is fixed with its base mounting on the mold platen.

According to one embodiment of the invention, the linear lifting guide rail is detachably mounted on the inner side wall of the upright post and is arranged along the length direction of the upright post. And the detachable structure is convenient for later maintenance and replacement of the easily worn parts, and ensures the normal operation of the equipment.

According to one embodiment of the invention, the rack is mounted on the outer side walls of the left and right uprights, the outer side walls being adjacent to the inner side walls.

According to one embodiment of the invention, the linear lifting rail is provided with a C-shaped groove, the model pressing plate is provided with a protruding part corresponding to the C-shaped groove, and the protruding part is embedded into the C-shaped groove in a protruding mode.

According to one embodiment of the invention, the boss is sleeved with a rotary drum, and the rotary drum rolls along the groove of the C-shaped groove piece when the model pressing plate ascends and descends along the C-shaped groove piece. Thereby further improving the smoothness and stability guiding function of the linear lifting rail.

According to one embodiment of the invention, the linear lifting rail is a straight rod, the model pressing plate is provided with a guide hole corresponding to the straight rod, and the guide hole is sleeved outside the straight rod.

According to one embodiment of the invention, at least one proximity switch is arranged on the upright post, the proximity switch is used for sensing whether the synchronous shaft or the gear is close or not, sensing information is fed back to a controller, and the controller is used for controlling the operation mode of the lifting hydraulic cylinder so as to limit the lifting range of the model pressing plate.

According to one embodiment of the invention, a bottom bracket is arranged below the stand, the lower side of the model pressing plate is used for installing an upper model, the bottom bracket is used for installing a lower model, and a ground lock screw hole is formed in the bottom of the stand.

The invention has the following technical effects:

according to the mold opening and closing lifting device of the high-pressure forming machine, through the combined action of the linear lifting guide rail and the auxiliary synchronous guide device, the stability of the lifting process of the mold pressing plate is ensured, the tightness and the accuracy of mold closing of the upper mold and the lower mold are ensured, tiny displacement in the descending process of the mold pressing plate is prevented, a small gap is formed between the mold pressing plate and a molded mold after the mold closing, and adverse effects such as slurry leakage, product scrapping and the like are finally generated.

The die opening and closing lifting device of the high-pressure forming machine not only solves a plurality of defects caused by horizontal die closing, but also improves the labor efficiency of workers, increases the yield of blanks and makes a significant contribution to the high yield of products. Compared with the prior art, the invention greatly reduces the labor intensity of workers, improves the working efficiency and saves the labor cost and the material cost; the operation is simpler; the use is more convenient.

In addition, the linear lifting guide rail and the auxiliary synchronous guide device are small parts and are easy to detach and replace, so that maintenance difficulty and maintenance cost can be reduced, and material waste is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a front structure of a mold opening and closing lifting device of a high-pressure molding machine according to a preferred embodiment of the invention.

Fig. 2 is a schematic side view of a lifting device for an open/close die of the high-pressure forming machine according to the embodiment of fig. 1.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1 and 2, schematic diagrams of front and side structures of a lifting device for an opening and closing die of a high-pressure forming machine according to an embodiment of the invention are shown. The high-pressure molding machine mold opening and closing lifting device 100 includes: the device comprises a frame 10, a beam 20 arranged on the frame, a model pressing plate 30 arranged below the beam 20 at a distance, and a driving device 40 for driving the model pressing plate to ascend and descend. Wherein the frame 10 comprises two upright posts 11, and the cross beam 20 is connected to the upper ends of the upright posts 11 through bolts. The driving means 40 is a lifting hydraulic cylinder which is mounted on the beam 20, and a piston rod 41 of the lifting hydraulic cylinder is fixedly connected to the top surface of the mold platen 30. A pair of linear elevating guide rails 50 (installed along the length direction of the upright posts 11) are installed on the inner side surfaces of the two upright posts 11, and the linear elevating guide rails 50 provide a guiding function for the movement of the model platen 30 when the driving device 40 drives the model platen 30 to move up and down. However, the high accuracy and high stability of the high-pressure injection molding machine are ensured by the linear elevating guide rail 50, and the auxiliary synchronous guide device 60 is also included in this embodiment.

Referring to fig. 1 and 2, the auxiliary synchronization guiding device 60 includes a rack 61, a gear 62, and a synchronization shaft 63. Racks 62 are mounted on the outer side walls of the left and right columns 11 of the frame 10 (see fig. 1). The left and right ends of the mold pressing plate 30 are respectively fixed with a bearing 70, and the bearing 70 is a bearing with a seat, and the base of the bearing is welded or screwed with the upper surface of the mold pressing plate 30. The two ends of the synchronizing shaft 63 are inserted into the shaft holes of the bearings 70, and the two ends of the synchronizing shaft 63 are inserted out of the bearings 70 and then are combined with the gears 62 respectively. The gear 62 rolls on the rack 61, and the teeth of the gear 62 intermesh with the rack 61.

The lifting device 100 of the present embodiment provides a driving force for lifting and lowering the mold platen 30 by means of the driving device 40, slides linearly up and down along the linear lifting guide rail 50, and is matched with the auxiliary synchronous guide device 60, so that the left and right ends of the mold platen 30 are kept highly synchronous and level. The invention makes the gears 62 at two ends rotate completely and synchronously by means of the synchronizing shaft 63, and simultaneously ensures the accuracy of the initial assembly of the equipment by means of the characteristic that the gears 62 are meshed with the teeth of the racks 61, so that the left and right ends of the model pressing plate 30 are always and accurately kept at the same horizontal height in the lifting operation process, thereby improving the qualification rate of the forming die after die assembly and effectively ensuring the quality of high-pressure glue injection products.

In this embodiment, the linear elevating guide 50 may be a C-shaped groove, i.e. an elongated member with a C-shaped or -shaped cross section, and the mold platen 30 is provided with a protrusion corresponding to the C-shaped groove, and the protrusion is embedded in the C-shaped groove. Preferably, in order to ensure smoothness of lifting of the mold platen 30, a drum may be provided at the boss, acting as a roller or a wheel, etc., and the size of the drum is slightly smaller than the inner diameter of the C-shaped groove member, thereby ensuring that the mold platen 30 moves smoothly along the linear lifting guide 50. Of course, in other embodiments, the linear lifting rail 50 may be a straight rod, and the mold platen 30 is provided with a guide hole corresponding to the straight rod, and the guide hole is sleeved outside the straight rod, so as to perform a guiding function.

In this embodiment, the upright 11 is further provided with a proximity switch 80, as shown in fig. 1, the proximity switch 80 can be used for sensing whether the synchronizing shaft 63 or the gear 62 is close, and feeding back the sensing information to a controller, and the controller is used for limiting the lifting range of the model pressing plate 30 according to the operation modes of opening and closing, extending or retracting the driving device 40 and the like of the received feedback information, thereby realizing the automation of lifting. In the present embodiment, 4 proximity switches 80 are provided on the column 11 at intervals along the rack 61, and each of the proximity switches indicates a different height position.

In addition, a base 12 is provided below the frame 10 for mounting a lower mold corresponding to the upper mold mounted on the mold platen 30. The bottom of the frame 10 is provided with ground locking screw holes 13, and the ground locking screw holes 13 are fixed by the ground or foundation surface of a factory workshop.

In some embodiments, the linear elevating guide 50 is detachably mounted on the inner side wall of the upright 11, so as to facilitate later maintenance and replacement of the wearing parts. In some embodiments, the linear elevating guide 50 is welded or integrally formed on the inner side wall of the upright 11.

The lifting device 100 of the present embodiment, when installed:

the frame 10 is fixed on the floor of a production workshop through a top explosion screw, the cross beam 20 and the collet 12 are respectively fixed on the upper end and the lower end of the frame 10 through bolts, a lifting hydraulic cylinder (a driving device 40) is mounted on the cross beam 20 through bolts, a hydraulic piston rod 41 at the lower end is connected with the model pressing plate 30 through a cylinder end, a linear lifting guide rail 50 is mounted between the cross beam 20 and the collet 12 and is fixed on the inner side surface of a column 11 of the frame 10 through bolts, two bearings 70 are fixed on the two ends (the upper side surface and the lower side surface of the column 11) of the model pressing plate 30 through bolts, a synchronous shaft 63 is mounted, gears 62 are mounted at the two ends of the synchronous shaft 63 and are in butt joint engagement with racks 61 mounted on the front side surfaces of the two columns, so that the synchronous function of lifting/descending actions of the model pressing plate 30 is realized, and the stability of the left end and the right end of the model pressing plate 30 is ensured. A proximity switch 80 is installed on the right column 11 for controlling the operation of the driving device 40 and the lifting range of the mold platen 30.

When the lifting device 80 works, the linear lifting guide rail 50 and the auxiliary synchronous guide device 60 are used for limiting, so that stable vertical lifting or descending in the lifting process is realized, tightness of die assembly is ensured, various defects of horizontal die assembly are overcome, labor efficiency of workers is improved, yield of blanks is increased, and remarkable effect is achieved for the yield of products.

The above detailed description of embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Claims

1. The mold opening and closing lifting device of the high-pressure forming machine comprises a frame, a cross beam arranged on the frame, a mold pressing plate arranged below the cross beam at a certain distance, and a driving device for driving the mold pressing plate to lift and descend, wherein a linear lifting guide rail is arranged on the frame, so that the driving device drives the mold pressing plate to lift along the linear lifting guide rail; the frame includes two spinal branch posts about, its characterized in that:

the device also comprises an auxiliary synchronous guiding device, wherein the auxiliary synchronous guiding device comprises a rack, a gear and a synchronous shaft; the rack is installed on two left and right stand posts of frame, the both ends of model clamp plate are fixed with a bearing respectively, the both ends of synchronizing shaft wear to locate the shaft hole of bearing the gear is installed respectively to two ends of synchronizing shaft, the gear is along the rack rolls, just the gear with rack intermeshing.

2. The lifting device for the open and close die of the high-pressure forming machine according to claim 1, wherein the driving device is a lifting hydraulic cylinder, one end of the lifting hydraulic cylinder is arranged on the cross beam, and a piston rod of the lifting hydraulic cylinder is fixedly connected with the die pressing plate.

3. The apparatus according to claim 1, wherein the bearing is a seated bearing, and the seated bearing is mounted and fixed on the mold platen with its base.

4. The lifting device for an opening and closing die of a high-pressure forming machine according to claim 1, wherein the linear lifting guide rail is detachably mounted on the inner side wall of the upright post, and is arranged along the length direction of the upright post.

5. The lifting device for a mold opening and closing of a high-pressure forming machine according to claim 4, wherein the rack is mounted on outer side walls of the left and right columns, the outer side walls being adjacent to the inner side walls.

6. The lifting device for an opening and closing die of a high-pressure forming machine according to claim 4, wherein the linear lifting rail is provided with a C-shaped groove, the die pressing plate is provided with a protruding part corresponding to the C-shaped groove, and the protruding part is embedded into the C-shaped groove in a protruding mode.

7. The apparatus according to claim 6, wherein the boss is fitted with a drum, and the drum rolls along the groove of the C-shaped groove member when the mold platen is lifted and lowered along the C-shaped groove member.

8. The lifting device for the open and close mold of the high-pressure molding machine according to claim 4, wherein the linear lifting rail is a straight rod, the mold pressing plate is provided with a guide hole corresponding to the straight rod, and the guide hole is sleeved outside the straight rod.

9. The lifting device for the open and close mold of the high-pressure forming machine according to claim 1, wherein at least one proximity switch is arranged on the upright post, the proximity switch is used for sensing whether the synchronous shaft or the gear is close or not, sensing information is fed back to a controller, and the controller is used for controlling the operation mode of the lifting hydraulic cylinder so as to limit the lifting range of the mold pressing plate.

10. The lifting device for the open and close mold of the high-pressure molding machine according to claim 1, wherein a bottom bracket is arranged below the frame, the lower side of the mold pressing plate is used for installing an upper mold, the bottom bracket is used for installing a lower mold, and a ground lock screw hole is formed in the bottom of the frame.