阅读说明：本技术 推送装置 (Pushing device ) 是由 付国友 于 2020-04-29 设计创作，主要内容包括：本发明涉及模具加工领域,公开了一种推送装置,包括驱动气缸、推板及导向组件,驱动气缸的推杆与推板连接,导向组件包括导向轴、直线轴承、固定板、固定套、密封圈及弹簧结构,驱动气缸与固定板的第一端连接,固定板的第二端与直线轴承连接,直线轴承套接在导向轴外,导向轴的一端通过固定套与推板连接,密封圈设置于固定套与导向轴之间,弹簧结构套设于导向轴外且位于固定板与推板之间。本推送装置具有结构简单、工作可靠且运动稳定的优点,能够精准平稳地推送模具装载车,防止模具装载车发生震动、摇晃、倾斜等现象。(The invention relates to the field of mold processing, and discloses a pushing device which comprises a driving air cylinder, a push plate and a guide assembly, wherein a push rod of the driving air cylinder is connected with the push plate, the guide assembly comprises a guide shaft, a linear bearing, a fixed plate, a fixed sleeve, a sealing ring and a spring structure, the driving air cylinder is connected with a first end of the fixed plate, a second end of the fixed plate is connected with the linear bearing, the linear bearing is sleeved outside the guide shaft, one end of the guide shaft is connected with the push plate through the fixed sleeve, the sealing ring is arranged between the fixed sleeve and the guide shaft, and the spring structure is sleeved outside the guide shaft and is positioned between. The pushing device has the advantages of simple structure, reliable work and stable movement, and can accurately and stably push the mold loading vehicle to prevent the mold loading vehicle from shaking, inclining and the like.)

1. A pushing device, comprising:

a driving cylinder;

the push rod of the driving cylinder is connected with the push plate; and

the direction subassembly, the direction subassembly includes guiding axle, linear bearing, fixed plate, fixed cover, sealing washer and spring structure, drive actuating cylinder with the first end of fixed plate is connected, the second end of fixed plate with linear bearing connects, linear bearing cup joints outside the guiding axle, the one end of guiding axle is passed through fixed cover with the push pedal is connected, the sealing washer set up in fixed cover with between the guiding axle, the spring structure cover is located outside the guiding axle and be located the fixed plate with between the push pedal.

2. The pushing device as claimed in claim 1, wherein the spring structure includes a first middle cross spring and a second middle cross spring, one end of the first middle cross spring is formed into an upper cross spring and an upper longitudinal spring along a clockwise spiral, one end of the second middle cross spring is formed into a lower cross spring and a lower longitudinal spring along a counterclockwise spiral, the first middle cross spring and the second middle cross spring are wound together and sleeved outside the guide shaft and between the fixing plate and the push plate, and the lower longitudinal spring is in contact with the driving cylinder and in a compressed state.

3. The pushing device as claimed in claim 1, wherein the linear bearing includes an outer ring, an inner ring, a retainer and a ball group, the retainer is sleeved outside the inner ring, the outer ring is sleeved outside the retainer, the ball group includes a plurality of balls, the retainer is provided with a plurality of movable hole groups arranged along a circumferential direction of the retainer, each movable hole group is parallel to an axis of the retainer, each movable hole group includes a plurality of movable holes, each movable hole is adapted to each ball, the outer surface of the inner ring is provided with a plurality of outer grooves, each outer groove is correspondingly communicated with each movable hole group, the inner surface of the outer ring is provided with a plurality of inner grooves, each inner groove is correspondingly communicated with each movable hole group, each ball is respectively arranged on the outer grooves in a rolling manner, The inner groove and the matched movable hole.

4. The pushing device as claimed in claim 3, wherein the linear bearing further comprises a plurality of multi-hole resilient balls, two oil reservoirs are respectively disposed on the wall of each movable hole, the two oil reservoirs are symmetrically distributed along the axis of the movable hole, each multi-hole resilient ball is correspondingly accommodated in each oil reservoir, the outermost end of each multi-hole resilient ball protrudes out of the corresponding oil reservoir, and the groove wall of the groove opening of each oil reservoir is recessed inwards to form a bayonet connected with the multi-hole resilient ball in a clamping manner.

5. The pushing device as claimed in claim 4, wherein the outermost end of the porous resilient ball protrudes 1mm to 3mm beyond the outermost end of the corresponding oil storage tank.

6. The pushing device as claimed in any one of claims 3 to 5, wherein the linear bearing further comprises a sealing gasket, the sealing gasket comprises an embedded portion and an outer blocking portion, a first end of the embedded portion is embedded between the outer ring and the inner ring, a second end of the embedded portion is connected with the outer blocking portion, and the outer blocking portion is clamped outside the outer ring.

7. The pushing device as claimed in claim 1, wherein the guide shaft comprises a carbon steel layer, a titanium alloy layer, an aluminum alloy layer and a corrosion resistant resin layer, the titanium alloy layer is sleeved outside the carbon steel layer, the aluminum alloy layer is sleeved outside the titanium alloy layer, a plurality of nano holes are corroded on the outer surface of the aluminum alloy layer, and the corrosion resistant resin layer is injection-molded on the outer surface of the aluminum alloy layer.

8. The pushing device according to claim 7, wherein the thickness ratio of the carbon steel layer, the titanium alloy layer, the aluminum alloy layer and the corrosion resistant resin layer is 100: (45-50): (45-50): (1-10).

9. The pushing device according to claim 8, wherein the thickness ratio of the carbon steel layer, the titanium alloy layer, the aluminum alloy layer and the corrosion resistant resin layer is 100: (46-48): (46-48): (4-6).

10. The pushing device as claimed in any one of claims 7 to 9, wherein the resist resin layer is at least one of a PPS resin layer, a PBT resin layer, a PA6 resin layer, a PA66 resin layer and a PPA resin layer.

Technical Field

The invention relates to the field of mold processing, in particular to a pushing device.

Background

The die processing refers to the processing of forming and blank making tools, and further comprises a shearing die and a die cutting die. In general, the mold is composed of an upper mold and a lower mold. Molten iron is poured between the upper die and the lower die, the material is formed under the action of a press, and when the press is opened, a workpiece determined by the shape of the die is obtained or corresponding waste materials are removed. Workpieces as small as the electronic connector and as large as the automobile instrument panel can be molded by using the mold. The progressive die is a set of dies capable of automatically moving a processing workpiece from one station to another station and obtaining a formed part at the last station. The die processing technology comprises the following steps: cutting die, blank punching die, compound die, extrusion die, four-slide rail die, progressive die, stamping die, die cutting die and the like.

In the mold processing industry, after molten iron is poured into a mold, the mold needs to be transported to the next position, and the process generally comprises the steps of placing the mold on a mold loading vehicle and pushing the mold loading vehicle to the next position by using an air cylinder. However, the air cylinder leaks air after being used for a long time, the temperature rises, the air pressure is unstable, the pressure is continuously increased and the movement is unstable in the process of pushing the mold loading vehicle, and even a push rod of the air cylinder is suddenly accelerated to be flushed out, so that the mold loading vehicle shakes, inclines and the like, and molten iron in the mold loaded on the mold loading vehicle leaks and splashes to hurt people.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the pushing device which is simple in structure, reliable in work and stable in movement, can accurately and stably push the mold loading vehicle, and prevents the mold loading vehicle from shaking, inclining and the like.

The purpose of the invention is realized by the following technical scheme:

a pushing device, comprising:

a driving cylinder;

the push rod of the driving cylinder is connected with the push plate; and

the direction subassembly, the direction subassembly includes guiding axle, linear bearing, fixed plate, fixed cover, sealing washer and spring structure, drive actuating cylinder with the first end of fixed plate is connected, the second end of fixed plate with linear bearing connects, linear bearing cup joints outside the guiding axle, the one end of guiding axle is passed through fixed cover with the push pedal is connected, the sealing washer set up in fixed cover with between the guiding axle, the spring structure cover is located outside the guiding axle and be located the fixed plate with between the push pedal.

In one embodiment, the spring structure includes a first middle cross spring and a second middle cross spring, one end of the first middle cross spring is coiled clockwise to form an upper cross spring and an upper longitudinal spring, one end of the second middle cross spring is coiled counterclockwise to form a lower cross spring and a lower longitudinal spring, the first middle cross spring and the second middle cross spring are wound together and sleeved outside the guide shaft and between the fixed plate and the push plate, and the lower longitudinal spring is in contact with the driving cylinder and is in a compressed state.

In one embodiment, the linear bearing comprises an outer ring, an inner ring, a retainer and a ball group, the retainer is sleeved outside the inner ring, the outer ring is sleeved outside the retainer, the ball group comprises a plurality of balls, the retainer is provided with a plurality of movable hole groups which are arranged along the circumferential direction of the retainer, each movable hole group is parallel to the axis of the retainer, each movable hole group comprises a plurality of movable holes, each movable hole is respectively used for being matched with each ball, a plurality of outer grooves are arranged on the outer surface of the inner ring, each outer groove is correspondingly communicated with each movable hole group, the inner surface of the outer ring is provided with a plurality of inner grooves, each inner groove is correspondingly communicated with each movable hole group, and each ball is arranged in the outer groove, the inner grooves and the movable holes in a matched mode in a rolling mode.

In one embodiment, the linear bearing further comprises a plurality of porous elastic balls, two oil storage tanks are respectively formed in the wall of each movable hole, the two oil storage tanks are symmetrically distributed along the axis of the movable hole, each porous elastic ball is correspondingly accommodated in each oil storage tank, the outermost end of each porous elastic ball protrudes out of the corresponding oil storage tank, and the groove wall of the notch of each oil storage tank is inwards recessed to form a bayonet connected with the corresponding porous elastic ball in a clamped mode.

In one embodiment, the outermost end of the porous elastic ball protrudes 1-3 mm from the outermost end of the corresponding oil storage tank.

In one of them embodiment, linear bearing still includes sealed the pad, sealed pad includes embedded portion and outer fender portion, the first end embedding of embedded portion the outer lane with between the inner circle, the second end of embedded portion with outer fender portion is connected, outer fender portion joint is in outside the outer lane.

In one of them embodiment, the guiding axle includes carbon steel layer, titanium alloy layer, aluminum alloy layer and anti-corrosion resin layer, the titanium alloy layer cover is located outside the carbon steel layer, the aluminum alloy layer cover is located outside the titanium alloy layer, the surface on aluminum alloy layer corrodes and has a plurality of nanopores, anti-corrosion resin layer moulds plastics the surface on aluminum alloy layer.

In one embodiment, the thickness ratio of the carbon steel layer, the titanium alloy layer, the aluminum alloy layer, and the corrosion resistant resin layer is 100: (45-50): (45-50): (1-10).

In one embodiment, the thickness ratio of the carbon steel layer, the titanium alloy layer, the aluminum alloy layer, and the corrosion resistant resin layer is 100: (46-48): (46-48): (4-6).

In one embodiment, the resist resin layer is at least one of a PPS resin layer, a PBT resin layer, a PA6 resin layer, a PA66 resin layer, and a PPA resin layer.

Compared with the prior art, the invention has at least the following advantages:

the pushing device has simple structure, reliable work and stable movement, the linear bearing is fixedly connected with the driving cylinder through the fixing plate, the guide shaft is fixedly connected with the push plate through the fixing sleeve and the sealing ring, the guide shaft and the linear bearing are combined for use, the linear motion system realizes reciprocating linear motion by utilizing the rolling motion of the ball of the linear bearing while playing a guide role, the ball is in point contact with the guide shaft, so the used load is small, the ball rotates with extremely small friction resistance, thereby high-precision stable motion can be obtained, the vibration and noise generated in the motion process of the push rod and the guide shaft of the driving cylinder are reduced through the spring structure, the motion stability is improved, so the driving cylinder can be assisted to accurately and stably push the mould loading vehicle through the whole guide component, and the phenomena of vibration, shaking, inclination and the like of the mould loading vehicle are prevented, thereby avoiding the leakage and splashing of the molten iron in the mould loaded on the mould loading vehicle to hurt people.

Drawings

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

Fig. 1 is a schematic structural diagram of a pushing device according to an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a cross-sectional view of a linear bearing of a guide assembly of a pushing device according to an embodiment of the present invention.

Fig. 4 is an enlarged view of a portion B in fig. 3.

Fig. 5 is a sectional view of a guide shaft of a guide assembly of a pushing device according to an embodiment of the present invention.

Fig. 6 is a cross-sectional view of a push plate of a pusher according to an embodiment of the present invention.

Fig. 7 is a sectional view of a damper plate of a push plate of a pusher according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

A pushing device, comprising: a driving cylinder; the push rod of the driving cylinder is connected with the push plate; and the guide assembly, the guide assembly includes guiding axle, linear bearing, fixed plate, fixed cover, sealing washer and spring structure, drive actuating cylinder with the first end of fixed plate is connected, the second end of fixed plate with linear bearing connects, linear bearing cup joints outside the guiding axle, the one end of guiding axle is passed through fixed cover with the push pedal is connected, the sealing washer set up in fixed cover with between the guiding axle, the spring structure cover is located outside the guiding axle and be located the fixed plate with between the push pedal.

The above-described pushing device is better illustrated to better understand the concept of the pushing device. In one embodiment, referring to fig. 1, a pushing apparatus 10 includes a driving cylinder 110, a pushing plate 120 and a guiding assembly 130, wherein a pushing rod of the driving cylinder 110 is connected to the pushing plate 120, and is configured to drive the pushing plate 120 to perform a linear reciprocating motion, so as to push a mold loading cart to a next position. The guide assembly 130 comprises a guide shaft 131, a linear bearing 132, a fixing plate 133, a fixing sleeve 134, a sealing ring and a spring structure 135, the driving cylinder 110 is connected with the first end of the fixing plate 133, the second end of the fixing plate 133 is connected with the linear bearing 132, the linear bearing 132 is sleeved outside the guide shaft 131, one end of the guide shaft 131 is connected with the push plate 120 through the fixing sleeve 134, the sealing ring is arranged between the fixing sleeve 134 and the guide shaft 131, and the spring structure 135 is sleeved outside the guide shaft 131 and is located between the fixing plate 133 and the push plate 120.

It should be noted that the pushing device 10 of the present invention has a simple structure, reliable operation and stable movement, the linear bearing 132 is fixedly connected to the driving cylinder 110 through the fixing plate 133, the guide shaft 131 is fixedly connected to the push plate 120 through the fixing sleeve 134 and the sealing ring, the linear bearing 132 and the guide shaft 131 are used in combination, the linear system performs a guiding function and simultaneously performs a reciprocating linear movement by using the rolling movement of the balls of the linear bearing 132, the balls are point-contacted with the guide shaft 131, so that the load is small, the balls rotate with a very small friction resistance, so that a high-precision and stable movement can be obtained, the vibration and noise generated during the movement of the push rod of the driving cylinder 110 and the guide shaft 131 are reduced through the spring structure 135, the movement stability is improved, and thus the entire guide assembly 130 can assist the driving cylinder 110 to accurately and stably push the mold loading vehicle, the phenomena of vibration, shaking, inclination and the like of the mold loading vehicle are prevented, so that the phenomenon that molten iron in the mold loaded on the mold loading vehicle leaks and splashes to hurt people is avoided.

Further, referring to fig. 2, the spring structure 135 includes a first middle cross spring 1361 and a second middle cross spring 1362, one end of the first middle cross spring 1361 is coiled clockwise to form an upper cross spring 1363 and an upper longitudinal spring 1364, one end of the second middle cross spring 1362 is coiled counterclockwise to form a lower cross spring 1365 and a lower longitudinal spring 1366, the first middle cross spring 1361 and the second middle cross spring 1362 are wound together and sleeved outside the guide shaft 131 and located between the fixing plate 133 and the push plate 120, and the lower longitudinal spring 1366 is in contact with the driving cylinder 110 and is in a compressed state. Thus, when the guide shaft 131 moves to generate vibration, the first middle transverse spring 1361 is forced to spirally flow clockwise in the transverse direction, then the upper transverse spring 1363 is continuously spirally flow clockwise in the transverse direction, then the upper longitudinal spring 1364 is spirally flow clockwise in the longitudinal direction, the second middle transverse spring 1362 is forced to spirally flow counterclockwise in the transverse direction, then the lower transverse spring 1365 is continuously spirally flow counterclockwise in the transverse direction, then the lower longitudinal spring 1366 is spirally flow counterclockwise in the longitudinal direction, the extension direction of the spring structure 135 is increased, the extension area is increased, a good buffering effect can be achieved, and vibration and noise generated in the movement process of the guide shaft 131 are effectively reduced; when the driving cylinder 110 moves to generate vibration, force flows along the lower longitudinal spring 1366, the lower transverse spring 1365, the second middle transverse spring 1362, the first middle transverse spring 1361, the upper transverse spring 1363 and the upper longitudinal spring 1364 in sequence, so that a good buffering effect is achieved, vibration and noise generated in the moving process of the driving cylinder 110 are effectively reduced, and the movement stability of the pushing device 10 is improved.

It can be understood that, a rectangular groove is formed in the retainer of the common linear bearing, the plurality of balls are tightly arranged in the rectangular groove, no gap exists between the adjacent balls to mutually hinder the respective rolling, once one of the balls is hindered to stop rolling, the rest balls are stressed and do not roll any more, and finally the linear bearing cannot work. In order to solve the above problem, in an embodiment, referring to fig. 3, the linear bearing 132 includes an outer ring 1321, an inner ring 1322, a retainer 1323, and a ball set 1324, the retainer 1323 is sleeved outside the inner ring 1322, the outer ring 1321 is sleeved outside the retainer 1323, the ball set 1324 includes a plurality of balls, the retainer 1323 is provided with a plurality of movable hole sets 1323a arranged along a circumferential direction thereof, each movable hole set 1323a is parallel to an axis of the retainer 1323, each movable hole set 1323a includes a plurality of movable holes, each movable hole is respectively adapted to each ball, an outer surface of the inner ring is provided with a plurality of outer grooves 1322a, each outer groove 1322a is correspondingly communicated with each movable hole set 1323a, an inner surface of the outer ring 1321 is provided with a plurality of inner grooves 1321a, each inner groove 1321a is correspondingly communicated with each movable hole set 1323a, each ball is respectively arranged in the outer groove 1322a, the inner groove 1321a and the matched movable hole in a rolling manner. So, linear bearing 132 is through setting up outer recess 1322a, inner groove 1321a and activity hole, and the ball is restricted to roll in outer recess 1322a, inner groove 1321a and the activity hole, makes the interval between the ball, and relative independent operation does not have the effect of mutual friction resistance, guarantees linear bearing 132's normal work, can eliminate the noise that the ball friction and collision produced, can protect outer lane 1321 and inner circle 1322 to avoid damaging, and can prolong linear bearing 132's life.

Further, referring to fig. 4, the linear bearing 132 further includes a plurality of porous elastic balls 1325, two oil storage slots 1323b are respectively formed in the hole wall of each movable hole, the two oil storage slots 1323b are symmetrically distributed along the axis of the movable hole, each porous elastic ball 1325 is correspondingly accommodated in each oil storage slot 1323b, the outermost end of each porous elastic ball protrudes out of the corresponding oil storage slot 1323b, and the slot wall of the oil storage slot 1323b is recessed inwards to form a bayonet 1323c which is clamped with the porous elastic ball 1325. In this way, the linear bearing 132 increases the storage amount of the lubricating oil through the oil storage slots 1323b by forming two oil storage slots 1323b on the hole wall of each movable hole, improves the lubrication degree of the linear bearing 132, and prolongs the oiling interval; the porous elastic ball is arranged in the oil storage tank 1323b, the outermost end of the porous elastic ball protrudes out of the oil storage tank 1323b, the ball can be extruded with the porous elastic ball when moving, the lubricating oil in the oil storage tank 1323b can be sucked into the porous elastic ball in the extrusion process, the lubricating oil is uniformly sprayed and coated on the outer surface of the ball, the ball can keep the lubrication degree for a long time, the vibration and the noise of the ball in the movement process can be reduced, and the pressure resistance and the shock resistance of the linear bearing 132 are improved; the groove wall of the groove opening of the oil storage groove 1323b is inwards sunken to form a bayonet 1323c which is clamped with the porous elastic ball 1325, the porous elastic ball blocks the groove opening of the oil storage groove 1323b, the loss of lubricating oil in the oil storage groove 1323b is reduced, the oil output of the porous elastic ball is small and uniform, the extrusion process of the porous elastic ball and a ball is a process of slowly releasing the lubricating oil, the oil storage time of the oil storage groove 1323b can be prolonged, and compared with the common linear bearing 132, the oil storage time of the linear bearing 132 can be prolonged by 50% -60%.

Furthermore, the micropores formed on the porous elastic ball are micron-sized.

Further, referring to fig. 4, the outermost end of the porous elastic ball protrudes 1mm to 3mm from the outermost end of the corresponding oil storage tank 1323 b. In principle, the more the outermost end of the porous bounce ball protrudes out of the outermost end of the oil storage groove 1323b, the greater the squeezing action of the porous bounce ball and the ball, the greater the oil output of the porous bounce ball, and in order to make the oil output of the porous bounce ball appropriate, the outermost end of the porous bounce ball preferably protrudes out of the outermost end of the corresponding oil storage groove 1323b by 1mm to 3 mm; for example, the outermost end of the porous marble protrudes 1mm from the outermost end of the corresponding oil reservoir 1323 b; for example, the outermost end of the porous marble protrudes 2mm from the outermost end of the corresponding oil reservoir 1323 b; for example, the outermost end of the porous marble protrudes 3mm from the outermost end of the corresponding oil reservoir 1323 b.

Further, referring to fig. 3, the linear bearing 132 further includes a sealing gasket, the sealing gasket includes an embedded portion and an outer blocking portion, a first end of the embedded portion is embedded between the outer ring 1321 and the inner ring 1322, a second end of the embedded portion is connected to the outer blocking portion, and the outer blocking portion is clamped outside the outer ring 1321. So, sealed pad establishes to two, sets up respectively in the both ends of outer lane 1321, the first end embedding through embedded portion outer lane 1321 with between the inner circle 1322, the second end of embedded portion with outer fender portion connects, outer fender portion joint can play the effect of sealed lubricating oil outside outer lane 1321.

It can be understood that the guide shaft needs to have a long length to push the mold loading cart to the next position, and the conventional guide shaft is generally made of stainless steel and has a heavy weight, and the driving cylinder 110 needs to consume a large amount of energy to drive the guide shaft 131. in order to reduce the weight of the guide shaft, in one embodiment, referring to fig. 5, the guide shaft 131 includes a carbon steel layer 1311, a titanium alloy layer 1312, an aluminum alloy layer 1313 and a corrosion resistant resin layer 1314, the titanium alloy layer 1312 is sleeved outside the carbon steel layer 1311, the aluminum alloy layer 1313 is sleeved outside the titanium alloy layer 1312, the outer surface of the aluminum alloy layer 1313 is corroded with a plurality of first nano holes, and the corrosion resistant resin layer 1314 is injection-molded on the outer surface of the aluminum alloy layer 1313. It should be noted that titanium alloy materials, aluminum alloy materials and corrosion-resistant resin materials are lighter than stainless steel materials, and carbon steel materials have higher carbon content, so that the titanium alloy materials, the aluminum alloy materials and the corrosion-resistant resin materials have higher strength, hardness and wear resistance, but the corrosion resistance is slightly poor; the density of the titanium alloy material is only 60 percent of that of steel, but the titanium alloy material has strength or exceeds that of the stainless steel material, and also has excellent high temperature resistance and corrosion resistance; the aluminum alloy material has low density, but higher strength which is close to or exceeds that of the stainless steel material, and has excellent corrosion resistance; the resist resin layer 1314 has electrical insulation and corrosion resistance; the guide shaft 131 having a strength close to that of a stainless steel material and a smaller mass can be obtained by forming a plurality of first nanopores having a size of a nanometer order on the outer surface of the aluminum alloy layer 1313 by a chemical method or a physical method, and tightly and firmly connecting the corrosion resistant resin layer 1314 to the aluminum alloy layer 1313 through the first nanopores, and thus providing the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313 and the corrosion resistant resin layer 1314 from the inside to the outside, and the guide shaft 131 also has the characteristics of good wear resistance, good high temperature resistance and high corrosion resistance.

In order to further improve the strength of the guide shaft 131 and reduce the quality of the guide shaft 131, for example, the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 have a thickness ratio of 100: (45-50): (45-50): (1-10). For example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: 45: 45: 10; for example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: 47: 47: 6; for example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: 50: 49: 1; for example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: 49: 50: 1. this can further increase the strength of the guide shaft 131 and reduce the mass of the guide shaft 131.

In order to further improve the strength of the guide shaft 131 and reduce the quality of the guide shaft 131, for example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: (46-48): (46-48): (4-6). Thus, the strength of the guide shaft 131 can be further improved and the weight of the guide shaft 131 can be reduced, and the weight of the guide shaft 131 of the present invention is 40% to 50% lighter than that of a guide shaft made of stainless steel material under the condition of the same shape and size. For example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: 46: 48: 6; for example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: 48: 46: 6; for example, the thickness ratio of the carbon steel layer 1311, the titanium alloy layer 1312, the aluminum alloy layer 1313, and the resist resin layer 1314 is 100: 48: 48: 4.

further, the resist resin layer 1314 is at least one of a PPS resin layer, a PBT resin layer, a PA6 resin layer, a PA66 resin layer, and a PPA resin layer. Thus, the corrosion resistant resin layer has the advantages of hardness, brittleness, high crystallinity, flame retardancy, good thermal stability, high mechanical strength, excellent electrical properties, excellent thermal stability, wear resistance, creep resistance, electrical insulation and corrosion resistance, and the electrical insulation and corrosion resistance of the guide shaft 131 can be greatly improved by injection molding on the aluminum alloy layer 1313.

Further, referring to fig. 6, the push plate 120 includes an upper insulating resin layer 121, a metal plate 122, a lower insulating resin layer 123 and a shock absorbing plate 124, wherein a plurality of second nano holes are etched on an upper surface and a lower surface of the metal plate 122, the upper insulating resin layer 121 and the lower insulating resin layer 123 are respectively injection-molded on the upper surface and the lower surface of the metal plate 122, and the shock absorbing plate 124 is connected to a side surface of the lower insulating resin layer 123 away from the metal plate 122. It should be noted that the metal plate 122 is made of at least one of carbon steel, titanium alloy and aluminum alloy, and has high strength and low mass; and then, a plurality of second nano holes with a nano-scale size are formed on the outer surface of the metal plate 122 by a chemical method or a physical method, the upper insulating resin layer 121 and the lower insulating resin layer 123 are tightly and firmly connected with the metal plate 122 through the second nano holes, so that the electrical insulation and corrosion resistance of the metal plate 122 are improved, meanwhile, the lower insulating resin layer 123 has strong viscosity, so that the shock absorbing plate 124 is strongly connected with the metal plate 122, the shock generated when the mold loading vehicle is pushed is buffered by the shock absorbing plate 124, and the phenomena of shock, shaking, inclination and the like of the mold loading vehicle are prevented.

Further, the upper insulating resin layer and the lower insulating resin layer are at least one of a PPS resin layer, a PBT resin layer, a PA6 resin layer, a PA66 resin layer and a PPA resin layer. Thus, the upper and lower insulating resin layers have the advantages of hardness, brittleness, high crystallinity, flame retardancy, good thermal stability, high mechanical strength, excellent electrical properties, and the like, and have excellent thermal stability, wear resistance, creep resistance, electrical insulation, and corrosion resistance, and the electrical insulation and corrosion resistance of the push plate 120 can be greatly improved by injection molding on the metal plate 122.

In order to improve the buffering and shock-absorbing functions of the shock-absorbing plate 124, in an embodiment, referring to fig. 7, the shock-absorbing plate 124 includes an upper pressure-relieving layer 1241, an upper elastic net 1242, a lower elastic net 1244, a lower pressure-relieving layer 1245, an air bag layer 1243 and a wear-resistant layer 1246, the upper pressure-relieving layer 1241 is connected to a side of the lower insulating resin layer 123 away from the metal plate 122, the upper pressure-relieving layer 1241 is formed with a plurality of upper grooves, the upper elastic net 1242 is connected to a side of the upper pressure-relieving layer 1241 away from the lower insulating resin layer 123, the upper elastic net 1242 is formed with a plurality of upper mesh holes, the lower elastic net 1244 is connected to a side of the upper elastic net 1242 away from the upper pressure-relieving layer 1241, the lower elastic net 4 is formed with a plurality of lower mesh holes, the lower pressure-relieving layer 1245 is connected to a side of the lower elastic net 1244 away from the upper elastic net 2, and the lower pressure-relieving layer 1245 is formed with a, the air bag layer 1243 is accommodated between the upper pressure-relieving layer 1241 and the lower pressure-relieving layer 1245, the air bag layer 1243 includes a plurality of air bags, the upper groove, the upper mesh, the lower mesh and the lower groove together form an accommodating cavity, each air bag is accommodated in each accommodating cavity, and the wear-resistant layer 1246 is connected to a side surface of the lower pressure-relieving layer 1245 away from the lower elastic net 1244. It should be noted that, when the damping plate 124 is stressed, the downward force of the upper pressure-relieving layer 1241 will pull the upper elastic net 1242, the upward force of the lower pressure-relieving layer 1245 will pull the lower elastic net 1244, and the upper elastic net 1242 and the lower elastic net 1244 can be well stretched due to the stress, so as to achieve effective buffering and extension. The air bag receives the downward force of the upper pressure-relieving layer 1241 and the upper elastic net 1242, and the upward force of the lower pressure-relieving layer 1245 and the lower elastic net 1244 can slightly move up and down, left and right in the containing cavity to slowly release the pressure. The film layer of the air bag layer is thin, contains a large amount of air, is easy to be scratched and torn, is hidden among the upper pressure-relieving layer 1241, the upper elastic net 1242, the lower pressure-relieving layer 1245 and the lower elastic net 1244, and enhances the mechanical property of the damping plate 124 through the wear-resistant layer 1246, thereby enhancing the wear resistance and puncture resistance of the damping plate 124; thus, the damping plate 124 has excellent damping performance, wear resistance and puncture resistance through the wear-resistant layer 1246, the upper pressure-relieving layer 1241, the upper elastic net 1242, the lower elastic net 1244, the lower pressure-relieving layer 1245 and the air bag layer 1243.

In order to improve the wear resistance and puncture resistance of the wear-resistant layer 1246, in one embodiment, the wear-resistant layer 1246 is a polyurethane resin wear-resistant layer 1246. In order to improve the cushioning and shock absorption properties of the upper pressure relief layer 1241 and the lower pressure relief layer 1245, in one embodiment, both the upper pressure relief layer 1241 and the lower pressure relief layer 1245 are rubber pressure relief layers. In order to increase the extensibility of the upper elastic web 1242 and the lower elastic web 1244, in one embodiment, both the upper elastic web 1242 and the lower elastic web 1244 are TPE elastic webs.

Compared with the prior art, the invention has at least the following advantages:

the pushing device 10 of the present invention has a simple structure, reliable operation and stable movement, the linear bearing 132 is fixedly connected with the driving cylinder 110 through the fixing plate 133, the guide shaft 131 is fixedly connected with the push plate 120 through the fixing sleeve 134 and the sealing ring, the linear bearing 132 and the guide shaft 131 are used in combination, the linear motion system which realizes the reciprocating linear motion by the rolling motion of the balls of the linear bearing 132 while playing a guiding role, the balls are point-contacted with the guide shaft 131, so the used load is small, the balls rotate with a minimum friction resistance, thereby the high-precision stable motion can be obtained, the vibration and noise generated during the motion process of the push rod of the driving cylinder 110 and the guide shaft 131 are reduced through the spring structure 135, the motion stability is improved, so the whole guide assembly 130 can assist the driving cylinder 110 to accurately and stably push the mold loader, and the vibration and noise of the mold loader can be prevented, And the phenomena of shaking, tilting and the like are avoided, so that the phenomenon that molten iron in the mold loaded on the mold loading vehicle leaks and splashes to hurt people is avoided.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.