CN112171991A - Hot-pressing forming manufacturing equipment for sealing leather cup of oil-free air compressor - Google Patents
Hot-pressing forming manufacturing equipment for sealing leather cup of oil-free air compressor Download PDFInfo
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- CN112171991A CN112171991A CN202010963207.4A CN202010963207A CN112171991A CN 112171991 A CN112171991 A CN 112171991A CN 202010963207 A CN202010963207 A CN 202010963207A CN 112171991 A CN112171991 A CN 112171991A
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- feeding
- air compressor
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- 238000007789 sealing Methods 0.000 title claims abstract description 152
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 65
- 239000010985 leather Substances 0.000 title claims abstract description 49
- 238000007731 hot pressing Methods 0.000 title claims description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000003825 pressing Methods 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 30
- 238000000465 moulding Methods 0.000 claims description 30
- 238000012856 packing Methods 0.000 claims description 14
- 238000007493 shaping process Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 3
- 239000013077 target material Substances 0.000 claims description 3
- 238000009998 heat setting Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 1
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention belongs to the technical field of compressor manufacturing, and relates to manufacturing equipment capable of finally forming a leather cup-shaped sealing ring by heating and pressing a planar piston sealing ring blank of an oil-free air compressor. The invention is characterized in that: the special sealing ring forming equipment comprising a blank feeding unit, a heating unit, a feeding and pushing unit, a press forming unit, a cooling unit, a finished product demolding unit and a central control system is arranged, wherein the central control system enables all units of the manufacturing equipment to operate orderly according to preset parameters, preset time sequence and preset actions by setting and sending various instructions. This equipment has fully made into the oilless air compressor sealing ring finished product of leather bowl form with the help of and utilize the heat setting principle with the help of and in high efficiency, has guaranteed the stability and the uniformity of sealed leather bowl production product quality on the one hand, has still effectively guaranteed the high quality and the high efficiency of assembly piston, connecting rod and piston ring subassembly simultaneously.
Description
The technical field is as follows:
the invention belongs to the technical field of compressor manufacturing, relates to manufacturing equipment for a sealing leather cup of an air compressor, and particularly relates to manufacturing equipment capable of thermoforming a planar piston sealing ring of an oil-free air compressor into a leather cup-shaped sealing ring.
Background art:
the oil-free air compressor is required to adopt a piston sealing element with self-lubricating performance to ensure that the leakage at the motion matching part of a piston and an air cylinder is prevented during working, the piston sealing element is mainly made of polytetrafluoroethylene serving as a body by adding various materials for enhancing lubrication, wear resistance, heat transfer, toughness and the like, belongs to a composite material sealing element and has larger elasticity and plasticity. Generally, a piston sealing element of an oil-free air compressor is manufactured into a flat annular part, is pressed on a piston body integrally manufactured with a small end of a connecting rod through a piston cover plate during installation, is forced to be in a leather cup shape by the extrusion force of the piston cover plate and the piston body, is then plugged into a cylinder hole of the compressor together with the connecting rod to form a sealing leather cup with a cup opening facing a compressor end cover, and is expanded to be closely attached to the wall surface of the cylinder by the elasticity of the leather cup and the high pressure in the cylinder during the operation of the compressor, so that the aim of motion sealing is fulfilled.
However, the existing oil-free air compression piston sealing element has a planar annular part, and the problems caused by the planar annular part are as follows: 1) the planar ring seal may result in poor consistency of the finished assembly of the piston and connecting rod assembly. When the flat ring-shaped sealing ring is placed in the piston body of the small end of the connecting rod, the worker is mainly dependent on experience to manually adjust and position, so that the flanging size difference of the sealing leather cup is very easy to appear after the piston cover plate is compressed, namely, the sealing leather cup which is installed and positioned and formed is different in height relative to the piston cover plate (namely, the piston top) observed from the circumferential view; 2) the planar annular sealing element can cause the quality and the yield of the finished piston connecting rod assembly to be low. In addition to the large difference in the flange sizes of the sealing leather cups, which causes unreliable sealing on one hand and the increase in the clearance volume of the compressor on the other hand, the manual positioning inaccuracy causes the non-uniform size of the formed sealing leather cups in the radial direction, that is, the situation that one side is thicker and the other side is thinner occurs, which also negatively affects the sealing effect of the sealing ring and even causes damage to the wall surface of the cylinder; 3) the planar ring seal may result in less efficient assembly of the piston and connecting rod assembly. On one hand, in the process of assembling the piston, the connecting rod and the piston ring, the positioning adjustment is required to be carried out continuously by manpower, so that the efficiency is lowered; on the other hand, the planar finished sealing ring has a large elastic force, so that a large amount of strength is required at least in the processes of pressing the upper cover plate and plugging the upper cover plate into the cylinder, and the long-term work causes the operation fatigue of workers, thereby reducing the work efficiency.
The invention content is as follows:
aiming at the problems existing in the process of assembling the compressor of the sealing ring finished product of the oil-free air compressor with the plane annular configuration, the sealing ring with the plane annular configuration needs to be prefabricated into a leather cup-shaped sealing ring in advance, so the invention provides hot-pressing forming manufacturing equipment for the sealing leather cup of the oil-free air compressor, which mainly aims to: by utilizing the heat setting principle and with the help of special forming equipment, the finished product of the sealing ring of the cup-shaped oilless air compressor can be efficiently manufactured in batches, and the stability and consistency of the quality of the sealing cup product can be ensured, so that the high quality and the high efficiency of assembling the piston, the connecting rod and the piston ring are ensured.
The purpose of the invention is realized as follows: the utility model provides an oilless air compressor seals packing cup hot pressing shaping manufacture equipment which characterized in that: the equipment comprises a blank feeding unit, a heating unit, a feeding and pushing unit, a press forming unit, a cooling unit, a finished product demoulding unit and a central control system, the sealing part forming device comprises a blank feeding unit, a heating unit, a feeding and pushing unit, a pressing and forming unit, a cooling unit, a finished product demolding unit and a mold, wherein the blank feeding unit is used for storing or/and queuing sealing part blanks, the heating unit is used for heating the sealing part blanks for subsequent hot pressing and forming, the feeding and pushing unit is used for conveying the heated and softened sealing part blanks to the pressing and forming unit or/and conveying the formed and demolded sealing leather cup finished products to a finished product stacking area, the pressing and forming unit is used for pressing and forming the heated and softened sealing part blanks through the mold, the cooling unit is used for assisting in cooling the sealing part in the pressing process or/and after pressing is completed so as to accelerate the forming process of the sealing leather cup finished products, and the finished product demolding unit is; the central control system enables each unit of the manufacturing equipment to orderly run according to preset parameters, preset time sequence and preset actions by setting and sending various instructions, wherein the whole manufacturing process flow is as follows: preparing a plane annular sealing element blank → storing the sealing element blank in a blank feeding unit or/and discharging the sealing element blank in a queue → heating and softening the sealing ring blank in a heating unit → conveying the sealing element blank into a pressing and forming unit one by one in sequence through a feeding and pushing unit and completing the positioning → performing leather cup forming on the heating and softened sealing ring blank by applying pressing force in the pressing and forming unit with a die, accelerating the shaping process of the sealing ring through a cooling unit → separating the shaped sealing leather cup finished product from the die of the pressing and forming unit through a finished product demolding unit → conveying the sealing leather cup finished product to a target material stacking area through the feeding and pushing unit.
Further, the blank feeding unit performs queue disposal on the sealing member blanks in a stacking mode.
Further, the feeding and pushing unit obtains the sealing element blank from the discharge end of the bottom area of the blank feeding unit.
Further, the heating unit is arranged in the lower area of the blank feeding unit or/and the lower area of the feeding and pushing unit in the moving process.
Further, the feeding and pushing unit comprises a feeding plate, and the feeding plate comprises a feeding structure for pushing and transporting the sealing element blank.
Further, the feeding plate adopts a reciprocating operation mode.
Further, the feeding and pushing unit comprises a pushing structure for pushing and transporting the sealing leather cup finished product.
Further, the feeding plate is driven by an air cylinder or an electric push rod.
Further, the feeding structure of the feeding plate is of a single-side opening structure, and the pushing structure of the feeding plate is of a flanging structure.
The press forming unit comprises a pressure head-shaped male die which adopts a linear reciprocating action mode or a rotary swinging action mode and is driven by an air cylinder or an electric push rod.
Furthermore, the press forming unit comprises a female die matched with the male die in a matched mode, and the female die is in a pit shape or a hole shape.
Further, the above-mentioned cooling unit is disposed on the female mold.
Further, the above-mentioned finished product demolding unit is arranged on the female mold or/and the male mold.
Further, the finished product demoulding unit adopts a driving cylinder or/and a return spring as a demoulding power source.
The central control system is provided with a pressure maintaining and shaping process, and the working time interval of the pressure maintaining and shaping process is set in the interval from the time when the male die and the female die start to finish the profiling die closing action to the time when the demoulding and die opening action starts.
Further, the pressure maintaining pressure set in the pressure maintaining and shaping process is 0.2MPa to 1.5MPa, and the pressure maintaining time is 1s to 15 s.
Further, the heating unit applies a heating temperature to the sealing piece blank between 80 ℃ and 380 ℃.
Further, the forming pressure applied to the sealing piece blank by the press forming unit is greater than or equal to 0.2 MPa.
Compared with the prior art, the invention has the outstanding advantages that: by means of special sealing ring forming equipment and the heat setting principle, the sealing ring finished products of the cup-shaped oil-free air compressor are efficiently manufactured in batches, the stability and the consistency of the quality of the sealing cup products are guaranteed, and therefore the high quality and the high efficiency of assembling the piston, the connecting rod and the piston ring are effectively guaranteed.
Description of the drawings:
FIG. 1 is a schematic diagram of the overall structure layout of a hot-pressing molding manufacturing device for a sealing leather cup of an oil-free air compressor according to the present invention;
FIG. 2 is a schematic view of the hot press molding apparatus for manufacturing a packing cup of the oil-free air compressor shown in FIG. 1 in a state of starting a preliminary operation;
FIG. 3 is a schematic view showing a feeding and pushing unit of the device for hot-press molding and manufacturing the packing cup of the oil-free air compressor shown in FIG. 1 starting to feed materials to the press molding unit;
FIG. 4 is a schematic view of the hot press molding manufacturing equipment for the sealing cup of the oil-free air compressor shown in FIG. 1, in a state that the feeding and pushing unit completely positions the blank of the sealing element to be pressed;
FIG. 5 is a schematic view showing a feeding and pushing unit of the manufacturing device for hot pressing and molding the sealing cup of the oil-free air compressor shown in FIG. 1 and returning to a blank feeding unit;
FIG. 6 is a schematic view of the feeding and pushing unit of the device for hot-pressing and molding the packing cup of the oil-free air compressor shown in FIG. 1, which has been returned to a starting position and receives the next packing blank;
FIG. 7 is a schematic view illustrating a state where a punch of a press-forming unit of the oil-free air compressor seal cup hot press forming manufacturing apparatus shown in FIG. 1 starts to press a seal blank;
FIG. 8 is a schematic view of the situation that the male mold and the female mold of the press-forming unit of the hot-press forming manufacturing equipment for the seal cup of the oil-free air compressor shown in FIG. 1 begin to be clamped to form the seal cup-shaped seal;
FIG. 9 is a schematic view showing a state where a cooling unit of the hot press molding apparatus for manufacturing a packing cup of the oil-free air compressor shown in FIG. 1 starts to operate and starts to perform a pressure maintaining process;
FIG. 10 is a schematic view of a finished product demolding unit of the oil-free air compressor sealing cup hot-press molding manufacturing apparatus shown in FIG. 1 in a state of starting to separate a cup-shaped sealing cup finished product;
FIG. 11 is a schematic view of the feeding and pushing unit of the device for hot press forming of a packing cup of the oil-free air compressor shown in FIG. 1, starting to convey a finished packing cup and completing the positioning of the next blank of a ready-to-press packing;
FIG. 12 is a schematic view showing a feeding and pushing unit of the manufacturing apparatus for hot press molding of a packing cup of the oil-free air compressor shown in FIG. 1 returning to a blank feeding unit again;
FIG. 13 is a schematic view of the feeding and pushing unit of the device for hot-pressing and molding the packing cup of the oil-free air compressor shown in FIG. 1 returning to the starting position again and receiving a further packing blank;
FIG. 14 is a schematic axial view of a feeding plate of a feeding and pushing unit of the manufacturing apparatus for hot press molding of a sealing cup of an oil-free air compressor shown in FIG. 1.
The specific implementation mode is as follows:
the invention will now be further described in the following by way of specific examples, with reference to figures 1 to 14:
an oilless air compressor seal cup hot pressing molding manufacturing device comprises the following functional units or functional systems (see fig. 1 to 13): the device comprises a blank feeding unit 1, a heating unit 2, a feeding and pushing unit 3, a press forming unit 4, a cooling unit 5, a finished product demolding unit 6 and a central control system 7. The invention is characterized in that the device can manufacture the planar annular sealing element blank 8 into the cup-ring-shaped sealing leather cup finished product 9 with high efficiency and high quality by using a mechanical and automatic means. The sealing part forming device comprises a blank feeding unit 1, a heating unit 2, a feeding and pushing unit 3, a pressing and forming unit 4, a cooling unit 5, a finished product demolding unit 6 and a finished product demolding unit 6, wherein the blank feeding unit 1 is used for storing or/and queuing sealing part blanks 8, the heating unit 2 is used for heating the sealing part blanks 8 for subsequent hot pressing and forming, the feeding and pushing unit 3 is used for conveying the heated sealing part blanks 8 to the pressing and forming unit 4 or/and conveying the formed and demolded sealing leather cup finished products 9 to a finished product stacking area, the pressing and forming unit 4 is used for pressing and forming the heated and softened sealing part blanks 8 through a mold, the cooling unit 5 is used for assisting in cooling the sealing part in the pressing process or/and after pressing is completed so as to accelerate the forming process of the sealing leather cup finished products 9, and the finished product demolding unit 6; the central control system 7 sets and sends out various instructions to make each unit of the manufacturing equipment perform orderly operation work according to preset parameters, preset time sequence and preset actions, wherein the whole manufacturing process flow is as follows: preparing a plane annular seal piece blank 8 → storing or/and discharging the seal piece blank 8 in a blank feeding unit 1 → heating and softening the seal ring blank 8 in a heating unit 2 → conveying the seal ring blank 8 into a press forming unit 4 one by one in sequence through a feeding and pushing unit 3 and completing the positioning → performing cup forming on the heated and softened seal ring blank 8 in the press forming unit 4 by applying a pressing force and assisting a mold → accelerating the shaping process of the finished seal ring product 9 through a cooling unit 5 → separating the finished seal cup product 9 from the mold of the press forming unit 4 through a finished product demolding unit 6 → conveying the finished seal cup product 9 to a target material stacking area through the feeding and pushing unit 3. The blank feeding unit 1 according to the invention can here take various forms for storing and/or queue-out handling of flat, circular, ring-shaped seal blanks 8, including a storage in the form of a crate, a stack, and the use of forms including vibration, rail constraints, baffle constraints, belt constraints, and the like, and even the use of machine vision and robotic aids to assist in queue handling, it is also possible in particular to store or even queue the seal blanks 8 in a stack, when in a stacked form the gravity of the material can be exploited to assist in the alignment and discharge of the seal blanks 8 (as shown in figures 1 to 13), one preferred form of stacking is to have the seal blanks 8 stacked in a vertical or near vertical fashion (see fig. 1-13). Further, the feeding and pushing unit 3 may obtain the sealing member blank 8 from the discharge end of the bottom area of the blank feeding unit 1 in the stacked form. It should be noted that the heating unit 2 of the present invention may be in the form of electric heating or other forms such as a combustion flame to heat the sealing member blank 8 to soften it for forming, it is furthermore possible to heat the seal blank 8 mainly by means of heat conduction in the form of direct heating, for example by bringing the heating unit 2 into direct contact with the seal blank 8, or in the form of indirect heating, for example by heating a further third party object through which the seal blank 8 is heated, or even in the form of non-contact thermal infrared radiation heating of the seal blank 8, furthermore, the heating unit 2 may be arranged in the lower region of the blank feeding unit 1 (i.e. the discharge end of the bottom region of the blank feeding unit 1, as shown in fig. 1 to 13) or/and the heating unit 2 may be arranged in some sections (not shown) of the movement of the material feeding and pushing unit 3. It is particularly pointed out that the finished stripping unit 6 may comprise two parts, a static stripping member 6a (meaning that this member is not moved when it is operating) and a dynamic stripping member 6b (meaning that this member is movable when it is operating), even the dynamic stripping member 6b may also be one of the parts that participate in the formation of the press-forming unit 4, such as the female die 44 thereof (see fig. 7, 8 and 9), i.e. the dynamic stripping member 6b may be one of the parts that the finished stripping unit 6 and the press-forming unit 4 share together; here, the product demolding unit 6 may use a driving cylinder as a demolding power source (not shown), a return spring as a demolding power source (not shown), both the driving cylinder and the return spring as demolding power sources (not shown), or even an electric push rod as the demolding power source (not shown). It should also be pointed out that the cooling unit 5 can also be one of the parts which are involved in the formation of the press-forming unit 4, for example in the formation of its female die 44 (see fig. 7, 8 and 9), i.e. the cooling unit 5 can be one part which is common to both the cooling unit 5 and the press-forming unit 4, the cooling unit 5 taking part in the role of both the cooling unit 5 and the press-forming unit 4 in the course of the sealing element blank 8 from the planar annular blank to the formation of the cup-shaped sealing cup product 9, as shown in fig. 6 to 9. The heating temperature applied to the sealing element blank 8 by the heating unit 2 of the present invention can be set between 80 ℃ and 380 ℃, and the temperature range can meet and ensure that the sealing element blanks 8 assembled by the existing materials are softened and finally the sealing cup finished products 9 with higher quality are obtained. Likewise, the forming pressure applied by the press forming unit 4 of the present invention to the seal blank 8 is greater than or equal to 0.2MPa, which ensures that the seal blank 8 is press formed into the seal cup product 9 required for the oilless air compressor. In order to better understand the working process of the hot press forming manufacturing apparatus for the seal cup of the oil-free air compressor according to the present invention, the following will discuss the whole process of the apparatus for pressing the seal blank 8 in the form of a flat ring into the finished seal cup 9 in the form of a cup with a shape of a cup with the embodiment shown in fig. 2 to 13:
a) the manufacturing equipment of the invention is in a state of starting preparation work (see fig. 2), at the moment, the sealing piece blank 8 is stored in the blank feeding unit 1 in a stacking way and is queued, and the heating unit 2 starts to heat and soften the sealing piece blank 8 at the bottom discharge end of the blank feeding unit 1, and the process of the station can enter the following flow b);
b) the manufacturing equipment is in a feeding starting state (see fig. 3), at this time, the heating unit 2 finishes heating and softening the sealing element blank 8 to be pressed, the feeding and pushing unit 3 starts feeding the pressing and forming unit 4, namely, the sealing element blank 8 which is heated and softened starts to be pushed away from the bottom of the blank feeding unit 1 by the feeding and pushing unit 3 and starts to move towards the pressing and forming unit 4, and the process enters the flow c) below after the process is finished;
c) the manufacturing equipment is in a state that the feeding and pushing unit 3 puts the sealing element blank 8 to be pressed in place, the sealing element blank is positioned on the station of the press forming unit 4 and is to be pressed (see figure 4), and then the next flow is carried out;
d) the manufacturing equipment of the invention is in a process state (see fig. 5) in the process that the feeding and pushing unit 3 is returning to the blank feeding unit 1, and then enters the following flow e);
e) the manufacturing equipment is in a state that the feeding and pushing unit 3 returns to the starting position and starts to receive the next sealing element blank 8 (see fig. 6), and at the moment, the heating unit 2 starts to heat the sealing element blank 8 which is just blanked and is positioned at the bottom of the blank feeding unit 1, and then immediately enters the flow f);
f) the manufacturing equipment of the invention is in a state that the male die 4a of the press forming unit 4 is in contact with and is about to press the sealing piece blank 8 which is already positioned on the press forming unit 4 (see fig. 7), and the state can also comprise that the sealing piece blank 8 which is already blanked and positioned at the bottom of the blank feeding unit 1 is continuously heated and softened, and then the process immediately enters the following step g);
g) the manufacturing equipment of the invention is in the process of starting to close the male die 4a and the female die 44 of the press forming unit 4 to form the leather bowl-shaped sealing element (see fig. 8), and the state can also comprise continuously heating and softening the sealing element blank 8 which is already blanked and is positioned at the bottom of the blank feeding unit 1, and then immediately entering the following flow h);
h) the manufacturing equipment of the invention is in a state of starting to implement a pressure maintaining process and simultaneously starting to work the cooling unit 5 and cooling the sealing element which is being shaped (see fig. 9), and the state can also comprise continuously heating and softening the sealing element blank 8 which is blanked and is positioned at the bottom of the blank feeding unit 1, and then immediately entering the following process i);
i) the manufacturing equipment of the invention is in the process of starting to separate the leather bowl-shaped sealing leather bowl finished product 9 by the finished product demoulding unit 6 (see figure 10), and the state can also comprise the steps of continuing to heat and soften the sealing element blank 8 which is already blanked and is positioned at the bottom of the blank feeding unit 1, and then immediately entering the following step j);
j) the manufacturing equipment is in the process of a state that the feeding and pushing unit 3 is pushing out and conveying a sealing leather cup finished product 9 and simultaneously positioning the next sealing element blank 8 to be pressed on the press forming unit 4 (see figure 11), and then immediately entering the next k) flow;
k) the manufacturing equipment of the invention is in the process that the feeding and pushing unit 3 returns to the blank feeding unit 1 again, and then immediately enters the flow I) (see figure 12);
l) the manufacturing equipment of the invention is in the process of returning the feeding and pushing unit 3 to the original position again and receiving another sealing element blank 8 (see fig. 13), and the heating unit 2 starts to heat the sealing element blank 8 which is already blanked and is positioned at the bottom of the blank feeding unit 1, so that the manufacturing equipment of the invention finishes one production cycle, and then immediately enters the next production cycle, namely, the flow a) above.
As a specific example: the feeding and pushing unit 3 of the present invention includes a feeding plate 3a (as shown in fig. 1 to 14), the feeding plate 3a includes a feeding structure 3b for pushing and transporting the sealing element blank 8, the feeding structure 3b may be one or more end edges of the feeding plate 3a, or may be other structures or structures such as end edges, bosses, rods, hooks, etc., and fig. 14 shows a case where the feeding structure 3b of the feeding plate 3a is formed by two end edges. It should be noted that the feeder plate 3a of the present invention can operate in a reciprocating manner, which includes two modes of operation, specifically, a straight reciprocating mode (as shown in fig. 2 to 13) and a rocking reciprocating mode (not shown). Further, the feeding and pushing unit 3 of the present invention can be used for transporting the sealing element blank 8, and can also be used for transporting the sealing cup finished product 9, and fig. 11 shows that it can be observed that the feeding and pushing unit 3 is playing a role in transporting the sealing cup finished product 9 and also can complete the transportation process of the next sealing element blank 8; fig. 14 shows that when the feeding and pushing unit 3 has two functions of conveying a sealing element blank 8 and a sealing cup finished product 9, a feeding plate 3a of the feeding and pushing unit 3 is provided with a pushing structure 3c for pushing and conveying the sealing cup finished product 9, it should be noted that the pushing structure 3c may be in various structural forms such as an end edge, a boss, a deflector rod, a retractor and the like, and particularly may be in a flange structural form (see fig. 2 to 14); in particular, the end edges of the feeding structure 3b of the feeding plate 3a according to the present invention can be designed to form a single-edge open structure 33 (see fig. 14) surrounded by the end edges, while the pushing structure 3c of the feeding plate 3a can be designed to form a flanging structure (see fig. 2 to 14), and the opening of the single-edge open structure 33 is arranged below the flanging structure of the pushing structure 3c, so that the feeding and pushing unit 3 can be conveniently designed to be a unit having both functions of conveying the seal blank 8 and pushing the seal cup finished product 9 (as shown in fig. 11). The feeding plate 3a of the present invention can be driven by various means, especially by a pneumatic cylinder or an electric push rod (not shown), because both means are relatively mature and reliable and relatively low cost.
As a specific example: the press-forming unit 4 of the present invention comprises a ram-like punch 4a (see fig. 1 to 13), which punch 4a operates in a linear reciprocating action mode or in a rotary rocking action mode, and in particular the punch 4a can be driven by a pneumatic cylinder 4b (see fig. 1) or an electric push rod (not shown). In order to obtain the cup-shaped sealing cup finished product 9, the press-forming unit 4 of the present invention further includes a female die 44 matched with the male die 4a in a matched manner, and the female die 44 is in a pit shape or a hole shape, as mentioned above, the press-forming unit 4 and the cooling unit 5 can share one component (the body of the cooling unit 5 shown in fig. 2 to 13 is formed as a part of the female die 44 and is responsible for the outer side constraint forming of the cup flanging, which can refer to the cup forming process of fig. 8 and 9), or so, the cooling unit 5 of the present invention can be arranged on the female die 44, which can be indicated as 44 (5); furthermore, the press-forming unit 4 can also share a component with the knockout unit 6 (it is clear from the cup forming process shown in fig. 7 to 9 that the movable knockout element 6b is a part of the die 44 and that part is responsible for the constrained forming of the bottom edge of the cup), or, as said, the die 44 of the present invention participates in forming the movable knockout element 6b, which can be designated as 44(6 b).
The central control system 7 of the present invention has the tasks of setting and sending various instructions to make each unit of the manufacturing equipment perform orderly operation work according to preset parameters, preset time sequence and preset actions as described above; in addition, in order to ensure the quality of the finished sealing leather cup product 9, the central control system 7 can be further provided with a pressure maintaining and shaping process, and the working time interval of the pressure maintaining and shaping process is set to be the interval from the time when the male die 4a and the female die 44 start to finish the profiling die closing action to the time when the demoulding and die opening action is started. Further, the pressure maintaining and shaping process is set to have the pressure maintaining pressure of 0.2MPa to 1.5MPa and the pressure maintaining time of 1s to 15 s.
Compared with the prior art, the invention has the outstanding advantages that: by means of special sealing ring forming equipment and by utilizing a heat setting principle, the sealing ring finished product of the cup-shaped oil-free air compressor is efficiently manufactured in batches, the stability and consistency of the quality of the sealing cup product, namely the finished sealing cup product 9, are ensured, and meanwhile, the high quality and the high efficiency of assembling the piston, the connecting rod and the piston ring are effectively ensured.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the invention are covered by the protection scope of the invention.
Claims (18)
1. The utility model provides an oilless air compressor seals packing cup hot pressing shaping manufacture equipment which characterized in that: the equipment comprises a blank feeding unit, a heating unit, a feeding and pushing unit, a press forming unit, a cooling unit, a finished product demoulding unit and a central control system, the sealing part forming device comprises a blank feeding unit, a heating unit, a feeding and pushing unit, a pressing and forming unit, a cooling unit, a finished product demolding unit and a mold, wherein the blank feeding unit is used for storing or/and queuing sealing part blanks, the heating unit is used for heating the sealing part blanks for subsequent hot pressing and forming, the feeding and pushing unit is used for conveying the heated and softened sealing part blanks to the pressing and forming unit or/and conveying the formed and demolded sealing leather cup finished products to a finished product stacking area, the pressing and forming unit is used for pressing and forming the heated and softened sealing part blanks through the mold, the cooling unit is used for assisting in cooling the sealing part in the pressing process or/and after pressing is completed so as to accelerate the forming process of the sealing leather cup finished products, and the finished product demolding unit is; the central control system enables each unit of the manufacturing equipment to orderly run according to preset parameters, preset time sequence and preset actions by setting and sending various instructions, wherein the whole manufacturing process flow is as follows: preparing a plane annular sealing element blank → storing the sealing element blank in a blank feeding unit or/and discharging the sealing element blank in a queue → heating and softening the sealing ring blank in a heating unit → conveying the sealing element blank into a pressing and forming unit one by one in sequence through a feeding and pushing unit and completing the positioning → performing leather cup forming on the heating and softened sealing ring blank by applying pressing force in the pressing and forming unit with a die, accelerating the shaping process of the sealing ring through a cooling unit → separating the shaped sealing leather cup finished product from the die of the pressing and forming unit through a finished product demolding unit → conveying the sealing leather cup finished product to a target material stacking area through the feeding and pushing unit.
2. The hot-pressing molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 1, wherein: the blank feeding unit adopts a stacking mode to carry out queue treatment on the sealing piece blanks.
3. The hot-pressing molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 2, wherein: the feeding and pushing unit obtains the sealing piece blank from the discharge end of the bottom area of the blank feeding unit.
4. The hot-press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 3, wherein: the heating unit is arranged in the lower area of the blank feeding unit or/and the lower area of the feeding and pushing unit in the moving process.
5. The hot-press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 4, wherein: the feeding and pushing unit comprises a feeding plate, and the feeding plate comprises a feeding structure for pushing and transporting sealing element blanks.
6. The hot-press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 5, wherein: the feeding plate adopts a reciprocating operation mode.
7. The hot-press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 6, wherein: the feeding and pushing unit comprises a pushing structure for pushing and transporting the sealing packing cup finished product.
8. The hot-press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 7, wherein: the feeding plate is driven by an air cylinder or an electric push rod.
9. The hot-press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 8, wherein: the feeding structure of the feeding plate is of a single-side opening structure, and the pushing structure of the feeding plate is of a flanging structure.
10. The hot-press molding manufacturing equipment for the seal cup of the oil-free air compressor as claimed in any one of claims 1 to 9, wherein: the press forming unit comprises a pressure head-shaped male die, the male die adopts a linear reciprocating action mode or a rotary swinging action mode, and is driven by an air cylinder or an electric push rod.
11. The hot press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 10, wherein: the pressing forming unit comprises a female die matched with the male die in a matched mode, and the female die is in a sink pit shape or a hole shape.
12. The hot press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 11, wherein: the cooling unit is arranged on the concave die.
13. The hot press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 12, wherein: the finished product demoulding unit is arranged on the female die or/and the male die.
14. The hot press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 13, wherein: the finished product demoulding unit adopts a driving cylinder or/and a return spring as a demoulding power source.
15. The hot-press molding manufacturing equipment for the seal cup of the oil-free air compressor as claimed in any one of claims 1 to 9, wherein: the central control system is provided with a pressure maintaining and shaping process, and the working time interval of the pressure maintaining and shaping process is set in the interval from the time when the male die and the female die start to finish the profiling die closing action to the time when the demolding die opening action is started.
16. The hot press molding manufacturing equipment for the sealing leather cup of the oil-free air compressor as claimed in claim 15, wherein: the pressure maintaining and shaping process is characterized in that the pressure maintaining pressure is set to be 0.2MPa to 1.5MPa, and the pressure maintaining time is set to be 1s to 15 s.
17. The hot-press molding manufacturing equipment for the seal cup of the oil-free air compressor as claimed in any one of claims 1 to 9, wherein: the heating unit applies heating temperature to the sealing piece blank between 80 ℃ and 380 ℃.
18. The hot-press molding manufacturing equipment for the seal cup of the oil-free air compressor as claimed in any one of claims 1 to 9, wherein: the forming pressure applied to the sealing piece blank by the press forming unit is greater than or equal to 0.2 MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010963207.4A CN112171991A (en) | 2020-09-14 | 2020-09-14 | Hot-pressing forming manufacturing equipment for sealing leather cup of oil-free air compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010963207.4A CN112171991A (en) | 2020-09-14 | 2020-09-14 | Hot-pressing forming manufacturing equipment for sealing leather cup of oil-free air compressor |
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| CN112171991A true CN112171991A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010963207.4A Pending CN112171991A (en) | 2020-09-14 | 2020-09-14 | Hot-pressing forming manufacturing equipment for sealing leather cup of oil-free air compressor |
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| CN113601777A (en) * | 2021-06-18 | 2021-11-05 | 湖州拓普汽车部件有限公司 | Automobile interior trim part compression molding system and method |
| CN115214062A (en) * | 2022-08-16 | 2022-10-21 | 安徽凌谊密封科技有限公司 | Heat exchanger sealing gasket machining device and using method thereof |
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