CN209832673U - Resin transfer molding device for producing L-shaped bracket - Google Patents

Abstract

The utility model discloses a resin transfer molding forming device for producing L-shaped brackets, which comprises a frame, wherein an L-shaped lower die and an L-shaped upper die are arranged above the frame, and glue injection ports are respectively arranged on the L-shaped lower die and the L-shaped upper die; the side of frame is provided with mould elevating system and fixed the setting at last mould elevating system top and with mould top face fixed connection's last mould tilting mechanism on the L type, the side of frame still is provided with hydraulic system and is used for the PLC controller of the whole function of controlling means. The utility model discloses a hydraulic drive's mode is realized from compound die, mould locking, goes up the mould drawing of patterns, divides mould, the automatic completion of mould upset, L type bed die drawing of patterns process on the L type, can shorten resin transfer molding process cycle effectively, has improved production efficiency widely.

Description

Resin transfer molding device for producing L-shaped bracket

Technical Field

The utility model relates to a combined material shaping technical field, especially a resin transfer molding forming device for producing L type support.

Background

Resin Transfer Molding (RTM) is a process in which Resin is injected into a closed mold to wet the reinforcement material and cure. The technology can effectively reduce the equipment cost and the forming cost. Resin transfer molding is a material-conforming molding technique and is widely used in the fields of aircraft industry, automobile industry, traffic, construction, and the like.

The applicant has previously applied for a patent name a railway bridge floor combined material flier mounting structure's utility model patent, include through pre-buried rectangle steel sheet in the concrete beam fender tiny fragments of stone, coal, etc. wall in proper order side by side fixed set up in the concrete beam fender tiny fragments of stone, coal, etc. wall, be used for a plurality of L type supports to the whole supporting role that plays of device, L type support is unsaturated polyester resin and glass fiber combined material support, is formed through the RTM shaping by unsaturated polyester resin and glass fiber.

At present, the mold for resin transfer molding production generally adopts a glass fiber reinforced plastic mold, a glass fiber reinforced plastic surface metal plating mold and a metal mold, the processes of mold closing, mold splitting, product demolding and the like need to be carried out manually in the production process, and if a large product is produced, the used mold has too large quality, the difficulty of mold closing and mold splitting can be caused, the labor intensity is high, the production efficiency is low, the product molding period is long, and certain dangerousness is realized. And the mould is locked and is fastened manually by bolts, so that the operation is complex and the working efficiency is low. In addition, at present, no production mold for the L-shaped bracket exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve provides a resin transfer molding forming device for producing L type support to solve present resin transfer molding production and need the manual work to carry out the operation and lead to that intensity of labour is big, production efficiency is low, dangerous big problem, in order to realize the mechanized control to resin transfer molding production, the liberation labour improves production efficiency, reduces the cost of labor.

In order to solve the technical problem, the utility model adopts the following technical proposal.

The resin transfer molding device for producing the L-shaped bracket comprises a rack, wherein an L-shaped lower die and an L-shaped upper die which is arranged above the L-shaped lower die and matched with the L-shaped lower die to realize resin transfer molding are arranged above the rack, and glue injection ports for injecting glue into the L-shaped lower die and the L-shaped upper die are respectively arranged on the L-shaped lower die and the L-shaped upper die; the side of frame is provided with and is used for driving the L type to go up the mould and carry out the last mould elevating system that goes up and down and fixed the setting on last mould elevating system top and with the L type go up mould top end face fixed connection be used for driving the L type and go up the mould upset so that carry out the L type and go up the mould and the last mould tilting mechanism of the operation that opens and shuts of L type bed die, the side of frame still is provided with and is used for providing the hydraulic system of power and being used for the PLC controller of the whole function of controlling means for last mould elevating system and last mould tilting mechanism, go up mould elevating system, the controlled end of going up mould tilting mechanism and hydraulic system connects respectively in the output of.

According to the technical scheme, the top end face of the L-shaped lower die is provided with a lower glue injection cavity matched with the L-shaped support in shape, the bottom end face of the L-shaped upper die is provided with an upper glue injection bulge matched with the lower glue injection cavity and having a certain distance between the top end face and the top end face of the lower glue injection cavity, and a glue injection cavity is formed between the upper glue injection bulge and the lower glue injection cavity.

According to the technical scheme, heating mechanisms for heating the mold to accelerate the curing speed of the glue solution are arranged in the L-shaped lower mold and the L-shaped upper mold respectively, and the controlled end of each heating mechanism is connected to the output end of the PLC.

Further optimize technical scheme, go up mould elevating system including setting up at the bottom fixed plate of frame side, setting up at the top locating plate of bottom fixed plate top, connect the telescopic polished rod and the stiff end that set up between bottom fixed plate and top locating plate and be connected with the bottom fixed plate and the tailpiece of the piston rod is used for driving the hydraulic cylinder of top locating plate lift with top locating plate fixed connection, and hydraulic cylinder's controlled end is connected in the output of PLC controller.

Further optimize technical scheme, go up mould tilting mechanism including fixed hydraulic motor that sets up on the locating plate of top, with the fixed connecting sleeve that the suit is connected of hydraulic motor pivot axle, with the upset connecting plate that the connecting sleeve is fixed mutually and set up two mould location otic placodes on mould both sides wall on the L type respectively, go up the fastening connection between mould location otic placode and the upset connecting plate, hydraulic motor's controlled end is connected in the output of PLC controller.

According to the technical scheme, the L-shaped lower die and the L-shaped upper die are locked and positioned through the upper die and the lower die positioning and locking mechanisms, and the controlled ends of the upper die and the lower die positioning and locking mechanisms are connected to the output end of the PLC.

According to the technical scheme, the rack is further provided with a plurality of forming die bottom demolding mechanisms used for pushing out the product after glue solution forming so as to be separated from the L-shaped lower die, and the controlled ends of the forming die bottom demolding mechanisms are connected to the output end of the PLC.

According to the technical scheme, the upper L-shaped mold is further provided with a plurality of forming mold top demolding mechanisms used for pushing out the product after the glue solution is formed so as to be separated from the upper L-shaped mold, and the controlled end of each forming mold top demolding mechanism is connected to the output end of the PLC.

Due to the adoption of the technical scheme, the utility model has the following technical progress.

The utility model discloses a hydraulic drive's mode is realized from compound die, mould locking, to the automatic completion of mould drawing of patterns, branch mould, mould upset on the L type, mould drawing of patterns process under the L type on the L type, can effectively solve artifical intensity of labour big, product shaping cycle length, production efficiency hang down, complex operation scheduling problem when carrying out processes such as compound die, branch mould, product demolding, mould locking, can shorten resin transfer molding process cycle effectively, has improved production efficiency widely.

The utility model discloses the heating mechanism that sets up respectively in L type bed die and L type top die can heat L type bed die and L type top die, and then heats the glue solution in the injecting glue cavity in L type bed die and the L type top die, accelerates the solidification rate of glue solution effectively, shortens production cycle; the utility model discloses the temperature detection mechanism that sets up on the mould on the L type can detect the temperature on the mould on the L type effectively to detect information feedback to the PLC controller, and then control the heating temperature of glue solution through the heating temperature of PLC controller control heating mechanism.

The utility model discloses go up mould elevating system and can drive the setting and go up the mould and go up and down in the last mould tilting mechanism of its top and with last mould tilting mechanism fixed connection's the L type, with the purpose of last mould tilting mechanism combined action in order to reach the compound die and divide the mould.

The utility model discloses go up mould tilting mechanism and adopt hydraulic motor drive to overturn through connecting sleeve and upset connecting plate mould on its L type of fixed connection for product top after the shaping has certain space, is convenient for move the product after the shaping and gets.

According to the invention, the piston rod of the locking hydraulic cylinder in the locking mechanisms of the upper die and the lower die can retract to drive the L-shaped positioning block arranged in the rectangular hole on the conical positioning head fixedly connected with the piston rod to be tightly attached to the locking lug plate, so that the L-shaped upper die and the L-shaped lower die are locked and positioned, and the product can be conveniently molded.

The utility model discloses moulded die top demoulding mechanism is accomplishing product shaping back pneumatic cylinder b's piston rod extension, and it is ejecting with the product after the shaping to drive toper top head b, need not artifical manual drawing of patterns to it, and is very convenient.

The utility model discloses moulded die bottom demoulding mechanism is when carrying out taking out of shaping back product, and pneumatic cylinder an's piston rod extension drives the product ejecting after head an will be shaping ejecting of toper, need not artifical manual drawing of patterns to it, the operation of getting of next link of being convenient for of moving.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of another view angle of the present invention;

fig. 3 is a schematic structural diagram of the L-shaped lower mold and the L-shaped upper mold before the mold closing of the present invention;

FIG. 4 is a schematic view of the L-shaped lower mold and a part of the positioning and locking mechanism of the upper and lower molds of the present invention in the position relationship of the frame;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

fig. 6 is a schematic structural view of a component arranged on the L-shaped upper die of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

fig. 8 is a schematic view of the connection relationship among the upper mold lifting mechanism, the upper mold turnover mechanism and the L-shaped upper mold of the present invention;

fig. 9 is a schematic structural view of the conical locking head of the present invention when no L-shaped positioning block is disposed in the rectangular hole;

fig. 10 is a schematic structural view of the tapered locking head of the present invention when an L-shaped positioning block is disposed in the rectangular hole.

Wherein: 1. the device comprises a rack, 11, an L-shaped top plate, 12, supporting legs, 13, supporting leg connecting plates, 14 and connecting positioning plates; 2. an L-shaped lower die 21, a lower injection cavity 22 and a lower die injection port; 3. a demoulding mechanism at the bottom of the forming die 31, hydraulic cylinders a, 32, conical ejection heads a, 33 and a conical hole a; 4. an L-shaped upper die 41, an upper glue injection bulge 42 and an upper die glue injection opening; 5. the upper and lower die positioning and locking mechanism comprises an upper die positioning and locking mechanism 51, a locking hydraulic cylinder 52, a conical locking head 521, a rectangular hole 53, a conical positioning head 54, a positioning plate 541, a conical positioning hole 55, a locking lug plate 551, a conical locking hole 56 and an L-shaped positioning block; 6. an upper die lifting mechanism 61, a bottom fixing plate 62, a top positioning plate 63, a lifting hydraulic cylinder 64 and a telescopic polish rod; 7. the upper die turnover mechanism comprises an upper die turnover mechanism 71, a hydraulic motor 72, a connecting sleeve 73, a turnover connecting plate 74 and an upper die positioning lug plate; 8. the demolding mechanism comprises a forming die top demolding mechanism 81, hydraulic cylinders b and 82, a hydraulic cylinder b positioning plate 83, tapered holes b and 84, tapered ejection heads b and 85, an auxiliary die splitting positioning plate 86, a die splitting hydraulic cylinder 87 and a cylindrical ejection head; 9. the temperature detection mechanism 91, the temperature detection probe 92 and the temperature detection probe mounting rack; 10. a PLC controller.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

A resin transfer molding device for producing an L-shaped bracket is shown in a combined drawing 1-10 and comprises a rack 1, an L-shaped lower die 2, an L-shaped upper die 4, a glue injection port, an upper die and lower die positioning and locking mechanism 5, an upper die lifting mechanism 6, an upper die turnover mechanism 7, a hydraulic system and a PLC (programmable logic controller) 10.

The frame 1 comprises an L-shaped top plate 11, supporting legs 12, supporting leg connecting plates 13 and connecting positioning plates 14. The supporting legs 12 are provided with a plurality of and are respectively arranged on the bottom end face of the L-shaped top plate 11, the supporting leg connecting plates 13 are provided with a plurality of and are respectively arranged between the two adjacent supporting legs 12, and the connecting and positioning plate 14 is fixedly arranged between the supporting leg connecting plates 13.

The L-shaped lower die 2 is disposed above the frame 1, specifically, fixedly disposed on an upper end surface of the L-shaped top plate 11. The L-shaped upper die 4 is arranged above the L-shaped lower die 2 and is matched with the L-shaped lower die 2 to realize resin transfer molding.

The top end face of the L-shaped lower die 2 is provided with a lower glue injection cavity 21 with the shape matched with that of the L-shaped support, the bottom end face of the L-shaped upper die 4 is provided with an upper glue injection bulge 41 matched with the lower glue injection cavity 21, the top end face of the upper glue injection bulge 41 has a certain distance with the top end face of the lower glue injection cavity 21, and a glue injection cavity is formed between the upper glue injection bulge 41 and the lower glue injection cavity 21.

Glue injection ports are respectively arranged on the L-shaped lower die 2 and the L-shaped upper die 4 and used for injecting glue into the L-shaped lower die 2 and the L-shaped upper die 4. The injecting glue mouth includes lower mould injecting glue mouth 22 and mould injecting glue mouth 42, and lower mould injecting glue mouth 22 sets up in the bottom of L type bed die 2, and mould injecting glue mouth 42 sets up on the top of mould 4 on the L type, and lower mould injecting glue mouth 22 and mould injecting glue mouth 42 all are linked together with the injecting glue cavity. The utility model discloses in be provided with three bed die injecting glue mouth 22, be provided with seven last mould injecting glue mouths 42.

The L-shaped lower die 2 and the L-shaped upper die 4 are locked and positioned by an upper die and lower die positioning and locking mechanism 5. The controlled end of the upper and lower die positioning and locking mechanisms 5 is connected to the output end of the PLC 10. The upper and lower mold positioning and locking mechanism 5 comprises a locking hydraulic cylinder 51, a conical locking head 52, a conical positioning head 53, a locking lug plate 55, a positioning plate 54 and an L-shaped positioning block 56.

The locking hydraulic cylinders 51 are arranged in a plurality and are respectively and fixedly arranged on the rack 1, the top ends of the cylinder bodies of the locking hydraulic cylinders 51 are fixedly connected with the L-shaped top plate 11 through bolts, the locking hydraulic cylinders 51 are fixed, and the controlled ends of the locking hydraulic cylinders 51 are connected to the output end of the PLC 10. The L-shaped top plate 11 is provided with a through hole through which a piston rod of the locking hydraulic cylinder 51 is passed. The tapered locking head 52 is disposed at the piston rod end of the locking hydraulic cylinder 51, and the diameter thereof is reduced from the bottom end to the top end in sequence. The locking ear plates 55 are arranged on the L-shaped upper die 4, and are arranged corresponding to the conical locking heads 52, and the locking ear plates 55 are provided with conical locking holes 551 matched with the conical positioning heads 53.

In addition, in order to realize the locking between the L-shaped upper die 4 and the L-shaped lower die 2, a rectangular hole 521 is opened on the tapered locking head 52, an L-shaped positioning block 56 is installed in the rectangular hole 521 in a matching manner, the L-shaped positioning block 56 is placed in the rectangular hole 521 manually by a worker when the L-shaped upper die 4 and the L-shaped lower die 2 contact and attach to each other and the tapered locking head 52 passes through a tapered locking hole 551 on the locking lug plate 55, and then the L-shaped positioning block 56 is placed in the rectangular hole 521 by the worker, and the L-shaped upper die 4 and the L-shaped lower die 2 are locked and positioned by retracting a piston rod of the locking hydraulic cylinder 51.

The cone-shaped positioning head 53 is arranged on the upper end surface of the L-shaped top plate 11 of the frame 1, the positioning plate 54 is arranged on the L-shaped upper die 4 and is arranged corresponding to the cone-shaped positioning head 53, and the positioning plate 54 is provided with a cone-shaped positioning hole 541 matched with the cone-shaped positioning head 53. The positioning plate 54 and the conical positioning head 53 are arranged to realize the positioning of the L-shaped lower die 2 and the L-shaped upper die 4.

The upper die lifting mechanism 6 is arranged at the side of the rack 1 and used for driving the L-shaped upper die 4 to lift, and the controlled end of the upper die lifting mechanism 6 is connected to the output end of the PLC 10. The upper mold lifting mechanism 6 includes a bottom fixing plate 61, a top positioning plate 62, a retractable polish rod 64, and a lifting cylinder 63. The bottom fixing plate 61 is arranged at the side of the frame 1, the top positioning plate 62 is arranged above the bottom fixing plate 61, and the telescopic polish rods 64 are connected and arranged between the bottom fixing plate 61 and the top positioning plate 62, so that four telescopic polish rods 64 are arranged in the utility model; the stiff end of hydraulic cylinder 63 is connected with bottom fixed plate 61, and the tailpiece of the piston rod and top locating plate 62 fixed connection for drive top locating plate 62 goes up and down, and the controlled end of hydraulic cylinder 63 is connected in the output of PLC controller 10.

Go up fixed the setting of mould tilting mechanism 7 on 6 tops of last mould elevating system, and with mould 4 top terminal surface fixed connection on the L type for mould 4 upset on the drive L type, so that go up mould 4 and the operation that opens and shuts of L type bed die 2 in carrying out the L type, the controlled end of going up mould tilting mechanism 7 is connected in the output of PLC controller 10.

The upper die-flipping mechanism 7 includes a hydraulic motor 71, a connecting sleeve 72, a flipping connecting plate 73, and an upper die positioning lug 74. The hydraulic motor 71 is fixedly arranged on the top positioning plate 62, and the hydraulic motor 71 is communicated with a hydraulic system through an oil pipeline. The connecting sleeve 72 is fixedly sleeved and connected with the rotating shaft of the hydraulic motor 71. The turnover connecting plate 73 is fixed with the connecting sleeve 72, and the turnover connecting plate 73 is of a rectangular plate-shaped structure. The two upper die positioning lug plates 74 are respectively arranged on two side walls of the L-shaped upper die 4, and the upper die positioning lug plates 74 are fixedly connected with the overturning connecting plate 73 through screws.

In order to accelerate the solidification speed of the glue solution when the mold is heated, heating mechanisms are respectively arranged in the L-shaped lower mold 2 and the L-shaped upper mold 4, and the controlled ends of the heating mechanisms are connected to the output end of the PLC 10. The heating mechanism can be a heating coil, and can also be heating oil or a heating rod.

A plurality of temperature detection means 9 are provided on the top end surface of the L-shaped upper die 4, and the temperature detection means 9 detects the heating temperature of the L-shaped upper die 4 by the heating means. The temperature detection mechanism 9 is a temperature probe, the temperature probe is in contact with the top end face of the L-shaped upper die 4, and the signal output end of the temperature probe is connected to the input end of the PLC 10. The temperature detection mechanism 9 is mounted on the top end surface of the L-shaped upper die 4 via a temperature detection probe mounting bracket 92.

In order to facilitate the separation of the product from the L-shaped lower die 2 after the glue solution is formed and the demolding of the formed product, a plurality of forming die bottom demolding mechanisms 3 are further arranged on the frame 1, and the forming die bottom demolding mechanisms 3 are used for pushing out the product after the glue solution is formed so as to be separated from the L-shaped lower die 2. The mold bottom demolding mechanism 3 includes a tapered hole a33, a hydraulic cylinder a31, and a tapered ejector head a 32. The tapered hole a33 penetrates through the lower glue injection cavity of the L-shaped lower die 2, and the inner diameter of the tapered hole a33 increases from bottom to top. The hydraulic cylinders a31 are provided in plurality and are fixedly arranged on the frame 1, specifically, the fixed ends of the hydraulic cylinders a31 are fixedly arranged on the supporting leg connecting plate 13, and the controlled ends of the hydraulic cylinders a31 are connected to the output end of the PLC 10. The conical ejection head a32 is fixedly arranged at the piston rod end of the hydraulic cylinder a31 and is matched with the conical hole a33, when the piston rod of the hydraulic cylinder a31 is not extended, the conical ejection head a32 just plugs the conical hole a33, and the top end surface of the conical ejection head a32 is flush with the end surface of the lower pouring rubber cavity of the L-shaped lower die 2.

In order to facilitate the separation of the product from the L-shaped upper die 4 after the glue solution is formed and the demoulding of the formed product, a plurality of forming die top demoulding mechanisms 8 are further arranged on the L-shaped upper die 4, and the forming die top demoulding mechanisms 8 are used for pushing out the product after the glue solution is formed so as to be separated from the L-shaped upper die 4. The mold-top demolding mechanism 8 includes a tapered hole b83, a hydraulic cylinder b81, and a tapered ejector head b 84. The tapered hole b83 penetrates the L-shaped upper die 4, and the inner diameter of the tapered hole b83 decreases from bottom to top. The hydraulic cylinder b81 is fixedly arranged on the top end surface of the L-shaped upper die 4 through a hydraulic cylinder b positioning plate 82, and the controlled end of the hydraulic cylinder b81 is connected to the output end of the PLC controller 10. The conical ejection head b84 is fixedly connected with the piston rod end of the hydraulic cylinder b81 and is matched with the conical hole b 83.

Furthermore, the utility model discloses for the convenience of carrying out the branch mould of mould 4 and L type bed die 2 on the L type, except that last mould elevating system 6 can drive the L type and go up mould 4 and rise and divide the mould, the utility model discloses still be provided with supplementary mould mechanism that divides in frame 1, supplementary mould mechanism and last mould elevating system 6 set up respectively in the both sides of frame 1, supplementary mould mechanism that divides cooperates with last mould elevating system 6 jointly to realize the operation of dividing the mould. The auxiliary mold splitting mechanism comprises an auxiliary mold splitting positioning plate 85, a mold splitting hydraulic cylinder 86 and a cylindrical top 87. The auxiliary die-splitting positioning plate 85 is fixedly arranged on the side wall of the L-shaped upper die 4, the top end of a cylinder body of the die-splitting hydraulic cylinder 86 is fixedly arranged on the rack through a bolt, the piston rod end of the die-splitting hydraulic cylinder 86 penetrates through the L-shaped top plate 11, and the cylindrical top 87 is arranged at the top end of a piston rod of the die-splitting hydraulic cylinder 86.

The hydraulic system and the PLC 10 are respectively arranged at the side of the frame 1, the hydraulic system is used for providing power for the upper and lower die locking mechanism 5, the upper die lifting mechanism 6, the upper die turnover mechanism 7, the forming die bottom demoulding mechanism 3 and the forming die top demoulding mechanism 8, and the controlled end of the hydraulic system is connected with the output end of the PLC 10. PLC controller 10 is used for the whole function of controlling means, the utility model provides a PLC controller 10 is programmable logic controller.

The hydraulic system comprises a hydraulic oil tank, a power element, a control element and an execution element which are sequentially connected through an oil pipe. The power element comprises a hydraulic pump and a motor for driving the hydraulic pump to provide oil pressure for the system, and the controlled end of the motor is connected to the output end of the PLC 10. The control element is including the main overflow valve that is used for guaranteeing system safety oil pressure and the hydraulic control valve that is used for controlling the executive component action, the utility model discloses all install the manometer at the oil feed end of main overflow valve and play oil end, the controlled end of hydraulic control valve is connected in PLC controller 10's output. The actuators comprise a hydraulic cylinder a31, a locking hydraulic cylinder 51, a lifting hydraulic cylinder 63, a hydraulic motor 71, a hydraulic cylinder b81 and a die-parting hydraulic cylinder 86, hydraulic oil flows out of the hydraulic pump, passes through a main overflow valve to reach a safe oil pressure, enters the hydraulic control valves, and the PLC 10 controls the hydraulic control valves to control the actions of the actuators.

The present invention comprises the following steps in the resin transfer molding process.

First, the mold closing of the L-shaped upper mold 4.

1) The PLC 10 controls the motor to drive the hydraulic pump to provide hydraulic oil for the hydraulic motor 71, and controls the hydraulic control valve communicated with the hydraulic motor 71 through an oil pipe to be opened, so that the hydraulic motor 71 rotates clockwise, the rotating shaft of the hydraulic motor 71 is fixedly connected with the connecting sleeve 72, the connecting sleeve 72 is fixedly connected with the overturning connecting plate 73 fixedly connected with the L-shaped upper die 4, so that the hydraulic motor 71 can drive the L-shaped upper die 4 to overturn clockwise when rotating, the rotating angle of the hydraulic motor 71 is controlled by the PLC 10, after the rotation, the L-shaped upper die 4 is flush with the L-shaped lower die 2, and the L-shaped upper die 4 is located at a position right above the L-shaped lower die 2 at the moment.

2) The PLC 10 controls a hydraulic control valve communicated with the lifting hydraulic cylinder 63 through an oil pipe to be closed, a piston rod of the lifting hydraulic cylinder 63 retracts, and the piston rod of the lifting hydraulic cylinder 63 drives the L-shaped upper die 4 to descend and move to a position where the L-shaped upper die 4 is contacted with the L-shaped lower die 2. At this time, the positioning hole 541 in the positioning plate 54 provided on the L-shaped upper die 4 is fitted with the positioning head 53 provided on the top end face of the L-shaped top plate 11, and positioning of the L-shaped upper die 4 is achieved.

And secondly, locking and positioning the L-shaped upper die 4 and the L-shaped lower die 2 through an upper die and lower die positioning and locking mechanism 5. The PLC 10 controls the piston rod of the locking hydraulic cylinder 51 to extend, so that the conical locking head 52 at the top end of the piston rod of the locking hydraulic cylinder 51 rises upwards and is matched with the conical locking hole 551 on the locking lug plate 55, the conical locking head 52 penetrates through the conical locking hole 551 on the locking lug plate 55, and the bottom end of the rectangular hole 521 is higher than the upper end of the locking lug plate 55; at this moment, the L-shaped positioning block 56 is manually placed in the rectangular hole 521, and then the PLC controller 10 controls the piston rod of the locking hydraulic cylinder 51 to retract, so that the L-shaped positioning block 56 and the locking lug plate 55 are tightly attached to each other, and the L-shaped upper die 4 and the L-shaped lower die 2 are locked and positioned.

And thirdly, injecting glue into glue injection cavities formed in the L-shaped upper die 4 and the L-shaped lower die 2. Glue injection operation in the glue injection cavity is completed by injecting glue into the lower die glue injection port 22 and the upper die glue injection port 42.

And fourthly, heating the glue solution in the glue injection cavity by the heating mechanism so as to accelerate the solidification speed of the glue solution when the mould is heated. The PLC controller 10 controls the heating mechanisms disposed in the L-shaped upper mold 4 and the L-shaped lower mold 2 to heat the L-shaped upper mold 4 and the L-shaped lower mold 2, thereby heating the glue solution.

And fifthly, controlling the heating temperature by the temperature detection mechanism 9. When the heating mechanism heats, the temperature detection probe 91 arranged on the L-shaped upper die 4 detects the temperature of the L-shaped upper die 4, feeds back the detection information to the PLC controller 10, and controls the heating temperature of the heating mechanism through the PLC controller 10 to control the heating temperature of the glue solution.

And sixthly, demoulding the L-shaped upper mould 4 and the formed product. After the glue solution is formed, the L-shaped upper die 4 needs to be separated from the formed product. At this time, the PLC controller 10 controls the extension of the piston rod of the hydraulic cylinder b81 in the mold-top-demolding mechanism 8 provided above the L-shaped upper mold 4, so that the tapered ejector head b84 connected to the piston rod of the hydraulic cylinder b81 extends downward, and the molded product is ejected from the inside of the L-shaped upper mold 4.

And seventhly, performing mold splitting between the L-shaped upper mold 4 and the L-shaped lower mold 2. The PLC 10 respectively controls the motor to drive the hydraulic pump to provide hydraulic oil for the lifting hydraulic cylinder 63 and the die-separating hydraulic cylinder 86, controls the hydraulic control valve communicated with the lifting hydraulic cylinder 63 through an oil pipe and the hydraulic control valve communicated with the die-separating hydraulic cylinder 86 through an oil pipe to be opened, controls the extension of piston rods of the lifting hydraulic cylinder 63 and the die-separating hydraulic cylinder 86, controls the lifting hydraulic cylinder 63 to drive the upper die turnover mechanism 7 and the L-shaped upper die 4 fixed with the upper die turnover mechanism 7 to move upwards, and simultaneously jacks up the auxiliary die-separating positioning plate 85 through a cylindrical jack 87 fixed with the piston rod end of the die-separating hydraulic cylinder 86 until the jacking-up reaches a certain height, and the auxiliary die-separating mechanism is matched with the upper die lifting mechanism 6 together to realize die-.

And eighthly, turning the L-shaped upper die 4. The PLC controller 10 controls the hydraulic motor 71 to rotate reversely, and then drives the L-shaped upper mold 4 connected to the upper mold turning mechanism 7 to turn counterclockwise and return to the initial position, so as to perform the next operation.

And ninthly, demoulding the L-shaped lower mould 2 and the formed product. The PLC 10 controls the extension of a piston rod of a hydraulic cylinder a in the demoulding mechanism 3 at the bottom of the forming die, the piston rod of the hydraulic cylinder a drives a conical ejection head a fixed with the hydraulic cylinder a to move upwards, and the formed product arranged in a lower injection cavity 21 of the L-shaped lower die 2 is ejected out, so that demoulding operation is realized, and the formed product is convenient to transport.

Claims (8)

1. A resin transfer molding device for producing L-shaped brackets is characterized in that: the resin transfer molding machine comprises a rack (1), wherein an L-shaped lower die (2) and an L-shaped upper die (4) which is arranged above the L-shaped lower die (2) and matched with the L-shaped lower die (2) to realize resin transfer molding are arranged above the rack (1), and glue injection ports for injecting glue into the L-shaped lower die (2) and the L-shaped upper die (4) are respectively arranged on the L-shaped lower die (2) and the L-shaped upper die (4); the side of frame (1) is provided with last mould elevating system (6) and the fixed last mould tilting mechanism (7) that sets up on last mould elevating system (6) top and with mould (4) top face fixed connection on the L type and be used for driving mould (4) upset on the L type so that mould (4) and L type bed die (2) open and shut the operation on carrying out the L type, the side of frame (1) still is provided with the hydraulic system that is used for providing power for last mould elevating system (6) and last mould tilting mechanism (7) and is used for the whole PLC controller (10) that operates of controlling means, go up mould elevating system (6), go up mould tilting mechanism (7) and hydraulic system's controlled end and connect respectively in the output of PLC controller (10).

2. The resin transfer molding apparatus for producing an L-shaped bracket according to claim 1, wherein: the bottom injection molding device is characterized in that a bottom injection cavity (21) matched with the L-shaped support in shape is formed in the top end face of the L-shaped lower die (2), an upper injection protrusion (41) matched with the bottom injection cavity (21) and having a certain distance with the top end face of the bottom injection cavity (21) is arranged on the bottom end face of the L-shaped upper die (4), and an injection cavity is formed between the upper injection protrusion (41) and the bottom injection cavity (21).

3. The resin transfer molding apparatus for producing an L-shaped bracket according to claim 1, wherein: and heating mechanisms for heating the molds to accelerate the curing speed of the glue solution are respectively arranged in the L-shaped lower mold (2) and the L-shaped upper mold (4), and the controlled ends of the heating mechanisms are connected to the output end of the PLC (10).

4. The resin transfer molding apparatus for producing an L-shaped bracket according to claim 1, wherein: go up mould elevating system (6) including setting up bottom fixed plate (61) at frame (1) side, top locating plate (62) of setting in bottom fixed plate (61) top, connect scalable polished rod (64) and stiff end that set up between bottom fixed plate (61) and top locating plate (62) and be connected with bottom fixed plate (61) and tailpiece of the piston rod and top locating plate (62) fixed connection be used for driving top locating plate (62) lift lifting hydraulic cylinder (63), the controlled end of lifting hydraulic cylinder (63) is connected in the output of PLC controller (10).

5. The resin transfer molding apparatus for producing an L-shaped bracket according to claim 4, wherein: go up mould tilting mechanism (7) including fixed hydraulic motor (71) that sets up on top locating plate (62), connecting sleeve (72) of being connected with the fixed suit of hydraulic motor (71) axis of rotation, upset connecting plate (73) fixed mutually with connecting sleeve (72) and set up mould location otic placode (74) on two on mould (4) both sides wall on the L type respectively, go up the fastening connection between mould location otic placode (74) and upset connecting plate (73), the controlled end of hydraulic motor (71) is connected in the output of PLC controller (10).

6. The resin transfer molding apparatus for producing an L-shaped bracket according to claim 1, wherein: and the L-shaped lower die (2) and the L-shaped upper die (4) are locked and positioned through an upper die and lower die positioning and locking mechanism (5), and the controlled end of the upper die and the controlled end of the lower die positioning and locking mechanism (5) are connected to the output end of the PLC (10).

7. The resin transfer molding apparatus for producing an L-shaped bracket according to claim 1, wherein: the machine frame (1) is also provided with a plurality of forming die bottom demoulding mechanisms (3) which are used for pushing out a product after glue solution forming so as to be separated from the L-shaped lower die (2), and the controlled end of each forming die bottom demoulding mechanism (3) is connected to the output end of the PLC (programmable logic controller) (10).

8. The resin transfer molding apparatus for producing an L-shaped bracket according to claim 1, wherein: the L-shaped upper die (4) is also provided with a plurality of forming die top demolding mechanisms (8) which are used for pushing out the product after glue solution forming so as to be separated from the L-shaped upper die (4), and the controlled end of each forming die top demolding mechanism (8) is connected to the output end of the PLC (programmable logic controller) (10).