CN115194888A

CN115194888A - Protection device for in-mold insert injection molding

Info

Publication number: CN115194888A
Application number: CN202210826618.8A
Authority: CN
Inventors: 罗金城
Original assignee: Alma Technology Co ltd
Current assignee: Alma Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-10-18
Anticipated expiration: 2042-07-14
Also published as: CN115194888B

Abstract

The invention discloses a protection device for in-mold insert injection molding, which comprises two supporting seats and is characterized in that: two the equal symmetry fixedly connected with in both sides of curb plate has the installation piece of screw, two the equal fixedly connected with curb plate in top one end of supporting seat, two one side that the curb plate was kept away from each other all rotates and is connected with a set of fork structure of cutting. The punching die can synchronously move along with the punching movable die while moving up and down through the supporting plates and the synchronous driving device, and the temporary supporting function of the punching movable die is realized by the two supporting plates in the process that a worker moving up the punching movable die takes down a plunger piece punched on the fixed die and puts on a die piece with punching function again, so that the accident that the worker is injured by moving the fixed die down due to control failure or misoperation can be effectively prevented, the personal safety of the worker can be effectively ensured, and the safety of the die punching process of the die piece in the in-die insert injection molding is improved.

Description

Protection device for in-mold insert injection molding

Technical Field

The invention belongs to the technical field of in-mold insert injection molding, and particularly relates to a protection device for in-mold insert injection molding.

Background

IML (In Molding Label) Chinese name In-mold insert injection Molding. The Film is printed, is formed by a Forming machine, is cut and then is placed in an injection mould to be produced, and the process has the remarkable characteristics that: the surface of the product is a hardened transparent film, the middle of the product is a printing pattern layer, the back of the product is a plastic layer, the printing ink is sandwiched between the plastic layer and the plastic layer, so that the surface of the product can be prevented from being scratched and is resistant to friction, and the product can keep bright color for a long time and is not easy to fade.

The injection molding steps of the in-mold inserts are various, wherein the injection molding steps comprise punching and blanking of the die sheets formed by hot pressing, most punching molds are used during punching and blanking, workers are required to put the die sheets into the punching molds firstly, then the movable molds are punched to move towards the fixed molds, redundant rim charge is punched, the movable molds move upwards to reset after punching is finished, at the moment, the workers need to take out the die sheets after punching from the molds, and finally the redundant rim charge is separated from the formed die sheets; in the operation, because the temporary support structure of the movable die is not arranged, the movable die is easy to cause the accident of accidentally dropping and injuring the palm of a worker due to misoperation or control failure, and certain use danger is realized; in addition, the separation of the redundant rim charge and the molding die piece cannot be automatically completed, the die piece after punching and the redundant rim charge are often connected together, the die piece and the redundant rim charge need to be manually separated by workers, and the separation is complex and influences the punching efficiency.

Therefore, it is necessary to invent a protection device for in-mold insert injection to solve the above problems.

Disclosure of Invention

In view of the above problems, the present invention provides a protection device for in-mold insert injection to solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the protection device for in-mold insert injection molding comprises two supporting seats, wherein one end of the top of each supporting seat is fixedly connected with a side plate, the two sides of each side plate are symmetrically and fixedly connected with mounting pieces with screw holes, and one sides of the two side plates, which are far away from each other, are rotatably connected with a group of scissor structures;

the shearing fork structure is composed of a plurality of square plates which are mutually crossed and hinged together, and one group of square plates at one end of the bottom in the shearing fork structure is only half of the length of other square plates; one end of the top of the scissor fork structure is fixedly connected with a sliding block, a U-shaped rod is connected inside the sliding block in a sliding manner, one end of the top of the U-shaped rod is fixedly connected with a supporting plate, and the supporting plate is perpendicular to the side plate;

and synchronous driving devices matched with the two supporting plates for use are arranged on the inner sides of the two side plates.

Furthermore, the synchronous driving device comprises threaded rods which are rotatably connected to one side, opposite to the two side plates, of the fixed blocks respectively, movable plates are connected to the outer portions of the two threaded rods through threads, chutes are formed in the surfaces of the two movable plates, rollers are connected to the inner portions of the two chutes in a sliding mode, guide grooves matched with roller shafts for use are formed in the surfaces of the two side plates, the roller shafts of the two rollers penetrate through the guide grooves and are fixedly connected with the two sets of scissors mechanisms respectively, guide strips are fixedly connected to one side, opposite to the two side plates, of the two side plates, the two guide strips are arranged between the two threaded rods and the side plates respectively, and grooves matched with the guide strips for use are formed in one side, close to the side plates, of the two movable plates.

Further, two the equal fixedly connected with worm wheel of one end of threaded rod, two rotate jointly between the curb plate and be connected with same lead screw, the outside symmetry of lead screw is fixed cup joint with worm wheel meshed worm, and the motor is installed through the shell in the outside of one of them curb plate, the one end of lead screw pass one of them curb plate and with the output fixed connection of motor, two the same fixed plate of the common fixedly connected with of top one end of curb plate, the external thread of lead screw has cup jointed the L shaped plate, the same pipe of the common swing joint in inside of L shaped plate and fixed plate, the subassembly is fixed to the one end fixedly connected with blanking of pipe.

Further, the subassembly is fixed to the blanking includes the square frame of fixed connection in pipe one side, the equal sliding connection in upper and lower both ends of square frame has T shape pole, two the inside and fixedly connected with splint that the one side that the T shape pole is relative all extends to square frame, two first spring has been cup jointed in the equal activity in outside of T shape pole, and two first springs set up the one side of keeping away from each other at two splint respectively, the inside swing joint of pipe has the push rod that uses with two splint cooperations, and the push rod is close to the shape toper of the side tangent plane of two splint one sides, two the shape of the side tangent plane that splint are close to push rod one side is right angled triangle, one side of push rod extends to the outside and the fixedly connected with ejector pad of pipe, the ejector pad is close to one side fixedly connected with second spring of pipe, and second spring activity cup joints in the outside of push rod and sets up between ejector pad and pipe, two fixedly connected with U-shaped plate that the ejector pad cooperation was used between the curb plate, and the cross section of U-shaped plate is the U-shaped with side tangent plane shape.

Furthermore, a chute matched with the circular tube for use is formed inside the fixing plate, and a blanking winding assembly matched with the blanking fixing assembly for use is arranged between the fixing plate and the L-shaped plate;

the blanking winding assembly comprises a toothed plate fixedly connected to one end of the bottom of the fixing plate and close to one side of the L-shaped plate, and a toothed ring meshed with the toothed plate is fixedly sleeved on the outer portion of the round tube.

Furthermore, fixed rods are symmetrically and fixedly connected to one side, away from the toothed plate, of each fixed plate, each fixed rod consists of a disc and a round rod, tension springs are movably sleeved outside the two fixed plates, one ends of the two tension springs are fixedly connected with the discs in the two fixed rods respectively, and the other ends of the two tension springs are fixedly connected with blanking collecting assemblies matched with the blanking winding assemblies respectively;

the blanking collection assembly comprises a push plate fixedly connected to the other ends of the two extension springs and two steel wire ropes fixedly connected to one side of the push plate close to the fixed plate, the two steel wire ropes are the same in length, empty grooves and two are symmetrically formed in the fixed plate, guide wheels matched with the steel wire ropes and used are rotatably connected to the inside of the empty grooves, the L-shaped plate is close to a mounting plate fixedly connected to one side of the fixed plate, and the two steel wire ropes are far away from one end of the push plate and penetrate through the empty grooves respectively and are fixedly connected with the mounting plate.

Further, the equal fixedly connected with diaphragm of top one end that the fixed plate is close to push pedal one side, two equal sliding connection has the T-shaped piece, two in the inside of diaphragm the L shape limiting plate that bottom one end of T-shaped piece all passed diaphragm and fixedly connected with and push pedal cooperation use, two the bottom one end of L shape limiting plate and the top one end of two push pedals all set up to the inclined plane that is parallel to each other, two the equal activity of outside of L shape limiting plate has cup jointed the guide frame, and two guide frames set up respectively between diaphragm and push pedal, two all be provided with the third spring between L shape limiting plate and two diaphragms, and two third springs activity respectively cup joint in the outside of two T-shaped pieces.

Further, logical groove has been seted up on the surface of fixed plate, and leads to the groove setting between guide frame and diaphragm, the inside sliding connection who leads to the groove has the jacking board that uses with two L shape limiting plate cooperations, and the tangent plane shape of jacking board is isosceles trapezoid, two L shape limiting plate is close to logical groove one side tangent plane shape and is the right trapezoid who uses with the jacking board cooperation, one side that L shape limiting plate was kept away from to the jacking board is fixed connection with the top one end of L shaped plate.

The invention also discloses a use method of the protective device for the in-mold insert injection molding, which comprises the following steps:

s1: placing the two supporting seats on two sides of a fixed die in a punching die, fixing the two supporting seats on two sides of the fixed die in the punching die by using bolts, adjusting the two clamping plates to the edge of one side of the fixed die, and finally placing an edge material collecting container below the end parts of the two clamping plates, which are far away from one side of the fixed plate;

s2: when the movable die moves upwards after the die-cutting on the fixed die is finished, the motor is synchronously opened, at the moment, the motor drives the two supporting plates to move upwards synchronously through the cooperation between the structures, so that the two supporting plates are always attached to one end of the bottom of the die-cutting movable die, when the die-cutting movable die moves upwards to a set position, the motor is synchronously closed, at the moment, the two supporting plates are simultaneously fixed below the die-cutting movable die, and the die-cutting movable die is temporarily supported;

s3: when a mold piece is placed on the fixed mold, redundant rim charge at the edge of the mold piece extends into a space between the two clamping plates; when the punching fixed die is moved upwards after punching, the edges of the redundant rim charge are clamped by the blanking fixing component, and then the redundant rim charge is separated from the die piece by the blanking winding component;

s4: finally, the blanking collecting component is used for stripping the redundant rim charge from the blanking fixing component, so that the redundant rim charge falls into a collecting container below under the action of gravity;

s5: when the punching movable die moves downwards again for punching, the motor is synchronously opened again and rotates reversely, and the two support plates are driven to move downwards synchronously along with the punching movable die through the matching between the structures, so that the two support plates are always kept below the punching movable die; meanwhile, the other blanking collecting assembly is driven to reset, and the blanking fixing assembly is driven to reset.

The invention has the technical effects and advantages that:

1. the punching die can synchronously move along with the punching movable die while moving up and down through the supporting plates and the synchronous driving device, and the temporary supporting function of the punching movable die is realized by the two supporting plates in the process that a worker moving up the punching movable die takes down a plunger piece punched on the fixed die and puts on a die piece with punching function again, so that the accident that the worker is injured by moving the fixed die down due to control failure or misoperation can be effectively prevented, the personal safety of the worker can be effectively ensured, and the safety of the die punching process of the die piece in the in-die insert injection molding is improved.

2. According to the blanking fixing assembly and the blanking winding assembly, when the support plate is driven to move upwards through the cooperation of the structures, redundant rim charge left after die cutting can be automatically separated from the die, and the use convenience of a die cutting mould can be effectively improved when the device is used.

3. According to the invention, through arranging the blanking collecting assembly, the automatic collection of redundant rim charge can be realized, the recycling of the blanking winding assembly can be realized, and the overall practicability of the device is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention.

FIG. 1 shows a front view of an embodiment of the present invention;

FIG. 2 is a bottom view of a part of the structure of the synchronous drive device according to the embodiment of the present invention;

FIG. 3 is a partial sectional view of the blanking fixing assembly according to an embodiment of the present invention;

FIG. 4 is a sectional top view of a portion of the structure of an embodiment of the present invention;

FIG. 5 shows a left cross-sectional view of a portion of the structure of an embodiment of the invention;

in the figure: 1. a supporting seat; 2. mounting a sheet; 3. a side plate; 4. a scissor structure; 5. a slider; 6. a U-shaped rod; 7. a support plate; 8. a synchronous drive device; 81. a threaded rod; 82. a movable plate; 83. a chute; 84. a roller; 85. a guide groove; 86. a guide strip; 87. a groove; 88. a worm gear; 89. a screw rod; 90. a worm; 91. a motor; 10. a fixing plate; 11. an L-shaped plate; 12. a circular tube; 13. a blanking fixing component; 131. a square frame; 132. a T-shaped rod; 133. a splint; 134. a first spring; 135. a push rod; 136. a push block; 137. a second spring; 138. a U-shaped plate; 139. a chute; 14. a blanking winding assembly; 141. a toothed plate; 142. a toothed ring; 15. fixing the rod; 16. a tension spring; 17. a blanking collection assembly; 171. pushing the plate; 172. a wire rope; 173. an empty groove; 174. a guide wheel; 175. mounting a plate; 176. a transverse plate; 177. a T-shaped block; 178. an L-shaped limiting plate; 179. a guide frame; 180. a third spring; 181. a through groove; 182. and (4) jacking the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the invention provides a protection device for in-mold insert injection molding, which comprises two supporting seats 1, wherein two sides of two side plates 3 are symmetrically and fixedly connected with installation pieces 2 with screw holes, one ends of the tops of the two supporting seats 1 are fixedly connected with the side plates 3, one sides, far away from each other, of the two side plates 3 are rotatably connected with a group of scissors structures 4, the two groups of scissors structures 4 are composed of a plurality of square plates which are mutually crossed and hinged together, one group of square plates at one ends of the bottoms of the two groups of scissors structures 4 are only half of the lengths of other square plates, one ends of the tops of the two groups of scissors structures 4 are fixedly connected with sliding blocks 5, the insides of the two groups of sliding blocks 5 are respectively and jointly slidably connected with a same U-shaped rod 6, one ends of the tops of the two U-shaped rods 6 are respectively and fixedly connected with supporting plates 7, and the two supporting plates 7 are respectively and vertically arranged with the two side plates 3. The inner sides of the two side plates 3 are provided with synchronous driving devices 8 matched with the two supporting plates 7;

the synchronous driving device 8 comprises threaded rods 81 which are rotatably connected to opposite sides of the two side plates 3 through fixing blocks respectively, movable plates 82 are in threaded connection with the outer portions of the two threaded rods 81 respectively, inclined grooves 83 are formed in the surfaces of the two movable plates 82 respectively, rollers 84 are in sliding connection with the inner portions of the two inclined grooves 83 respectively, guide grooves 85 matched with the shafts of the rollers 84 are formed in the surfaces of the two side plates 3 respectively, the shafts of the two rollers 84 penetrate through the guide grooves 85 and are fixedly connected with the two sets of scissors mechanisms respectively, guide strips 86 are fixedly connected to the opposite sides of the two side plates 3 respectively, the two guide strips 86 are arranged between the two threaded rods 81 and the side plates 3 respectively, and grooves 87 matched with the guide strips 86 are formed in one sides of the two movable plates 82 close to the side plates 3 respectively;

one end of each of the two threaded rods 81 is fixedly connected with a worm wheel 88, the two side plates 3 are connected with a same lead screw 89 in a rotating mode together, worms 90 meshed with the worm wheels 88 are symmetrically and fixedly sleeved on the outer portion of the lead screw 89, a motor 91 is installed on the outer side of one of the side plates 3 through a shell, one end of the lead screw 89 penetrates through one of the side plates 3 and is fixedly connected with the output end of the motor 91, one end of the top of each of the two side plates 3 is fixedly connected with a same fixing plate 10 together, an L-shaped plate 11 is sleeved on the outer thread of the lead screw 89, the L-shaped plate 11 and the inner portion of the fixing plate 10 are movably connected with a same round pipe 12 together, and one end of the round pipe 12 is fixedly connected with a blanking fixing assembly 13;

before the device is used, two supporting seats 1 need to be placed on two sides of a fixed die in a punching die, then bolts sequentially penetrate through screw holes in a plurality of mounting pieces 2 and are screwed tightly, the two supporting seats 1 are fixed on two sides of the fixed die in the punching die, and after the supporting seats 1 are mounted, two clamping plates 133 can be adjusted to the edge of one side of the fixed die;

when the die-cutting die is used, after a movable die in the die-cutting die punches a die sheet on a fixed die, when the movable die moves upwards, the motor 91 is synchronously opened, at the moment, the motor 91 drives the screw rod 89 to rotate, the screw rod 89 drives the two worms 90 to rotate synchronously, the two threaded rods 81 are respectively driven to rotate through the meshing action between the two worms 90 and the worm wheel 88, the two movable plates 82 are driven to move through the two threaded rods 81, in the moving process of the two movable plates 82, the two rollers 84 synchronously slide in the inclined grooves 83 and drive the two wheel shafts to respectively move upwards in the guide grooves 85, so that the two wheel shafts 84 drive the two scissor structures 4 to extend upwards, and the two sliding blocks 5 on the two scissor structures 4 respectively slide outside the U-shaped rods 6 and approach each other, at the moment, the U-shaped rod 6 pushes the supporting plate 7 to move upwards, so that the two supporting plates 7 are driven to move upwards through the matching between the structures while the punching movable die moves upwards, the two supporting plates 7 are always attached to one end of the bottom of the punching movable die, when the punching movable die moves upwards to a set position, the motor 91 is synchronously closed, at the moment, the two supporting plates 7 are simultaneously fixed below the punching movable die to realize temporary support of the punching movable die, and the control system of the punching movable die is prevented from being out of order and the accident that a worker is injured when the worker takes down a plunger piece which is punched on the fixed die and puts on the die piece with punching function again;

when a worker puts a die to be punched on the fixed die again, the punching movable die moves downwards again for punching, the motor 91 is synchronously opened, at the moment, the generator 91 drives the screw rod 89 to rotate reversely, so that the screw rod 89 drives the two worms 90 to rotate synchronously and reversely, and drives the two movable plates 82 to move reversely again through the cooperation between the structures, so that the two rollers 84 slide in the chute 83 and move downwards along the chute 83 to the inside of the guide groove 85, so that the two rollers 84 drive the two scissor structures 4 to contract through the wheel shafts of the two rollers 84, the two groups of sliding blocks 5 are driven by the two scissor structures 4 to slide outside the U-shaped rod 6 and move away from each other, the two supporting plates 7 are driven to move downwards synchronously along with the punching movable die, and the two supporting plates 7 are always kept below the punching movable die;

the die-cutting movable die can synchronously move along with the die-cutting movable die while moving up and down through the arrangement of the supporting plates 7 and the synchronous driving device 8, and the temporary supporting function of the die-cutting movable die is realized by utilizing the two supporting plates 7 in the process that a worker moving up the die-cutting movable die takes down a plunger piece which is die-cut on the fixed die and puts on the plunger piece with the die-cutting die again, so that the accident that the worker is clamped by moving down the fixed die due to control failure or misoperation can be effectively prevented, the personal safety of the worker can be effectively ensured, and the safety of the die-cutting process of the die-cutting die in the in-mold insert injection molding is improved.

As shown in fig. 1 and fig. 3 to 5, the blanking fixing assembly 13 includes a square frame 131 fixedly connected to one side of the circular tube 12, the upper and lower ends of the square frame 131 are both slidably connected with T-shaped rods 132, one side of each of the two T-shaped rods 132 opposite to the square frame 131 extends into the square frame 131 and is fixedly connected with a clamp plate 133, the outer portions of the two T-shaped rods 132 are both movably sleeved with a first spring 134, the two first springs 134 are respectively disposed at one side of the two clamp plates 133 away from each other, the inner portion of the circular tube 12 is movably connected with a push rod 135 used in cooperation with the two clamp plates 133, the side cut surface of the push rod 135 close to one side of the two clamp plates 133 is tapered, the side cut surface of one side of the two clamp plates 133 close to the push rod 135 is both in a right triangle shape, one side of the push rod 135 extends into the outer portion of the circular tube 12 and is fixedly connected with a push block 136, one side of the push block 136 is fixedly connected with a second spring 137, the second spring 137 is movably sleeved at the outer portion of the push rod 135 close to the push block 136 and is disposed between the circular tube 12, the two side plates 3 are both in a U-cut surface shape used in cooperation with the push block 136, and the U-shaped plate 138;

a chute 139 matched with the circular tube 12 is formed in the fixing plate 10, and a blanking winding assembly 14 matched with the blanking fixing assembly 13 is arranged between the fixing plate 10 and the L-shaped plate 11;

the blanking winding assembly 14 comprises a toothed plate 141 fixedly connected to one side of one end of the bottom of the fixing plate 10 close to the L-shaped plate 11, and a toothed ring 142 meshed with the toothed plate 141 is fixedly sleeved outside the circular tube 12;

when the die is placed on the fixed die, redundant rim charge at the edge of the die can be extended into the space between the two clamping plates 133; when the punching fixed die is punched and moved upwards, the screw rod 89 drives the L-shaped plate 11 to move synchronously while the screw rod 89 is driven to rotate through the matching between the structures, the L-shaped plate 11 drives the circular tube 12 to move synchronously inside the sliding groove 139, so that the circular tube 12 drives the push rod 135 to move synchronously, at the moment, the push rod 135 drives the push block 136 to move inside the U-shaped plate 138, when the push block 136 moves to the recessed position in the U-shaped plate 138, the push block 136 drives the square frame 131 to move inwards to the circular tube 12 under the reset action of the second spring 137, so as to relieve the interference effect of the push rod 135 on the two clamping plates 133, at the moment, the T-shaped rods 132 approach each other under the reset action of the two first springs 134 and push the two clamping plates 133 to approach each other, and at first, redundant rim charge of the die piece between the two clamping plates 133 is clamped;

when the circular tube 12 is continuously driven to slide in the sliding groove 139 through the matching between the above structures, the circular tube 12 drives the gear ring 142 to move synchronously, and drives the circular tube 12 to move and rotate at the same time through the meshing action between the gear ring 142 and the toothed plate 141, so that the circular tube 12 drives the two clamping plates 133 to rotate synchronously through the square frame 131, the two clamping plates 133 wind the punched redundant rim charge, the redundant rim charge of the die is wound outside the two clamping plates 133, and the automatic separation of the redundant rim charge and the die is realized;

when the pushing block 136 is driven to move to the protrusion on the other side of the U-shaped plate 138 through the matching between the above structures, the pushing block 136 pushes the pushing rod 135 to move towards the inside of the square frame 131 again and press the second spring 137, so that the pushing rod 135 props against the two clamping plates 133 to separate, the two clamping plates 133 respectively push the T-shaped rod 132 to move towards the outside of the square frame 131 and press the first spring 134, and thus the fixing effect of the two clamping plates 133 on the redundant rim charge is released;

when the punching moving die moves downwards, the two clamping plates 133 can be moved to the original positions through the matching between the structures again;

according to the blanking fixing component 13 and the blanking winding component 14, when the supporting plate 7 is driven to move upwards through the matching of the structures, redundant rim charge left after die cutting can be automatically separated from the die, and the use convenience of the die cutting die can be effectively improved when the device is used.

As shown in fig. 1 and fig. 3 to 5, the fixing rods 15 are symmetrically and fixedly connected to one side of the fixing plate 10 away from the toothed plate 141, each of the two fixing rods 15 is composed of a disc and a round rod, tension springs 16 are movably sleeved outside the two fixing plates 10, one ends of the two tension springs 16 are respectively and fixedly connected to the discs of the two fixing rods 15, and the other ends of the two tension springs 16 are respectively and fixedly connected to a blanking collecting assembly 17 used in cooperation with the blanking winding assembly 14;

the blanking collecting assembly 17 comprises push plates 171 fixedly connected to the other ends of the two tension springs 16, steel wire ropes 172 are fixedly connected to one sides of the two push plates 171 close to the fixing plate 10, the two steel wire ropes 172 are the same in length, hollow grooves 173 are symmetrically formed in the fixing plate 10, guide wheels 174 matched with the steel wire ropes 172 are rotatably connected to the insides of the two hollow grooves 173, a mounting plate 175 is fixedly connected to one side of the L-shaped plate 11 close to the fixing plate 10, and one ends of the two steel wire ropes 172 far away from the push plates 171 penetrate through the hollow grooves 173 and are fixedly connected with the mounting plate 175;

the top ends of the fixing plate 10 close to one side of the push plate 171 are fixedly connected with transverse plates 176, the insides of the two transverse plates 176 are slidably connected with T-shaped blocks 177, the bottom ends of the two T-shaped blocks 177 penetrate through the transverse plates 176 and are fixedly connected with L-shaped limit plates 178 matched with the push plate 171, the bottom ends of the two L-shaped limit plates 178 and the top ends of the two push plates 171 are arranged to be inclined planes parallel to each other, the outsides of the two L-shaped limit plates 178 are movably sleeved with guide frames 179, the two guide frames 179 are respectively arranged between the transverse plates 176 and the push plate 171, third springs 180 are respectively arranged between the two L-shaped limit plates 178 and the two transverse plates 176, and the two third springs 180 are respectively movably sleeved outside the two T-shaped blocks 177;

a through groove 181 is formed in the surface of the fixing plate 10, the through groove 181 is arranged between the guide frame 179 and the transverse plate 176, a lifting plate 182 used in cooperation with the two L-shaped limit plates 178 is connected to the inside of the through groove 181 in a sliding manner, the cross section of the lifting plate 182 is isosceles trapezoid, the cross section of one side of each of the two L-shaped limit plates 178 close to the through groove 181 is right trapezoid used in cooperation with the lifting plate 182, and one side of the lifting plate 182 far away from the L-shaped limit plate 178 is fixedly connected with one end of the top of the L-shaped plate 11;

before the device is used, an edge material collecting container can be placed below the end parts of the two clamping plates 133 far away from one side of the fixed plate 10, when the pushing block 136 is driven to move to the protrusion on the other side of the U-shaped plate 138 through the operation, the L-shaped plate 11 drives the lifting plate 182 to synchronously move to the other side of the through groove 181, at the moment, the lifting plate 182 abuts against the L-shaped limiting plate 178 to move upwards, so that the L-shaped limiting plate 178 slides in the guide frame 179 and drives the T-shaped block 177 to move upwards, the third spring 180 is compressed, the limiting effect of the L-shaped limiting plate 178 on the pushing plate 171 is relieved, at the moment, the L-shaped limiting plate 178 moves to one side far away from the fixed plate 10 under the resetting effect of the tension spring 16, so that the redundant edge materials outside the two clamping plates 133 are rolled up, and at the moment, the redundant edge materials fall into the collecting container below under the action of gravity, and the redundant edge materials are collected;

when one of the push plates 171 moves to the side far away from the fixed plate 10, the push plate 171 drives one of the steel wire ropes 172 to synchronously stretch, and simultaneously, the L-shaped plate 11 drives the mounting plate 175 to synchronously move, the mounting plate 175 drives the other steel plate to move to the side near the fixed plate 10 through the other steel wire rope 172 and stretches the tension spring 16, when one of the push plates 171 rolls off the rim charge outside the clamping plate 133 under the reset action of the tension spring 16, the other push plate 171 abuts against the other L-shaped limiting plate 178 and pushes the T-shaped block 177 to move upwards, so that the third spring 180 is compressed, and when the other push plate 171 moves to the position between the fixed plate 10 and the L-shaped limiting plate 178, the L-shaped limiting plate 178 moves downwards under the reset action of the third spring 180 and extends out of the guide frame 179, so that the position of the other push plate 171 is fixed;

when the punching movable die moves downwards, firstly, the two clamping plates 133 are driven to move reversely and reset through the matching between the structures, when the two clamping plates 133 move to the original positions, the jacking plate 182 abuts against the other L-shaped limiting plate 178 through the matching between the structures again, and drives the other pushing plate 171 to move towards one side far away from the fixed plate 10 through the matching between the structures and the resetting action of the tension spring 16, so that the action of rolling down the redundant rim charge outside the two clamping plates 133 is repeated, and the redundant rim charge residue outside the stirring part is prevented; meanwhile, the push plate 171 on the other side pulls the tension spring 16 and is fixed again by the cooperation of the above structures;

according to the invention, the blanking collecting assembly 17 is arranged, so that the automatic collection of redundant rim charge can be realized, the recycling of the blanking winding assembly 14 can be realized, and the overall practicability of the device is improved.

Example 2:

s1: placing the two supporting seats 1 on two sides of a fixed die in a punching die, fixing the two supporting seats 1 on two sides of the fixed die in the punching die by using bolts, adjusting the two clamping plates 133 to the edge of one side of the fixed die, and finally placing an edge material collecting container below the end parts of the two clamping plates 133 far away from one side of the fixed plate 10;

s2: when the movable die moves upwards after the die-cutting of the die sheet on the fixed die is finished, the motor 91 is synchronously opened, at the moment, the motor 91 drives the two supporting plates 7 to synchronously move upwards through the cooperation between the structures, so that the two supporting plates 7 are always attached to one end of the bottom of the movable die for die-cutting, when the movable die for die-cutting moves upwards to a set position, the motor 91 is synchronously closed, and at the moment, the two supporting plates 7 are simultaneously fixed below the movable die for die-cutting to temporarily support the movable die for die-cutting;

s3: when the mold piece is placed on the fixed mold, redundant rim charge at the edge of the mold piece extends into the space between the two clamping plates 133; when the punching of the punching fixed die is finished, the die moves upwards, the edges of the redundant rim charge are clamped by the blanking fixing component 13, and then the redundant rim charge is separated from the die piece by the blanking winding component 14;

s4: finally, the blanking collecting component 17 is used for stripping the redundant rim charge from the blanking fixing component 13, so that the redundant rim charge falls into a collecting container below under the action of gravity;

s5: when the punching movable die moves downwards again for punching, the motor 91 is synchronously opened again and rotates reversely, and the two support plates 7 are driven to move downwards synchronously along with the punching movable die through the matching between the structures, so that the two support plates 7 are always kept below the punching movable die; meanwhile, the other blanking collecting component 17 is driven to reset, and the blanking fixing component 13 is driven to reset.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The protection device for the in-mold insert injection molding comprises two supporting seats (1), and is characterized in that one ends of the tops of the two supporting seats (1) are fixedly connected with side plates (3), two sides of each side plate (3) are symmetrically and fixedly connected with mounting pieces (2) with screw holes, and one sides, far away from each other, of the two side plates (3) are rotatably connected with a group of scissor structures (4);

the scissors structure (4) is composed of a plurality of square plates which are mutually crossed and hinged together, and a group of square plates at one end of the bottom of the scissors structure (4) is only half of the length of other square plates; one end of the top of the scissor structure (4) is fixedly connected with a sliding block (5), a U-shaped rod (6) is connected inside the sliding block (5) in a sliding manner, one end of the top of the U-shaped rod (6) is fixedly connected with a supporting plate (7), and the supporting plate (7) is perpendicular to the side plate (3);

and synchronous driving devices (8) matched with the two supporting plates (7) are arranged on the inner sides of the two side plates (3).

2. The protection device for in-mold insert injection according to claim 1, wherein: the synchronous driving device (8) comprises threaded rods (81) which are rotatably connected to one side, opposite to the two side plates (3), of fixing blocks, movable plates (82) are connected to the outer portions of the two threaded rods (81) in a threaded mode, inclined grooves (83) are formed in the surfaces of the two movable plates (82), rollers (84) are connected to the inner portions of the two inclined grooves (83) in a sliding mode, guide grooves (85) used in cooperation with wheel shafts of the rollers (84) are formed in the surfaces of the two side plates (3), the wheel shafts of the two rollers (84) penetrate through the guide grooves (85) and are fixedly connected with the two sets of scissors mechanisms respectively, guide strips (86) are fixedly connected to one side, opposite to the side plates (3), the two guide strips (86) are arranged between the two threaded rods (81) and the side plates (3) respectively, and grooves (87) used in cooperation with the guide strips (86) are formed in one side, close to the side plate (3), of the movable plate (82).

3. The protection device for in-mold insert injection according to claim 2, wherein: two equal fixedly connected with worm wheel (88) of one end of threaded rod (81), two rotate jointly between curb plate (3) and be connected with same lead screw (89), the outside symmetry of lead screw (89) is fixed cup jointed with worm (90) of worm wheel (88) meshing, and motor (91) are installed through the shell in the outside of one of them curb plate (3), the one end of lead screw (89) pass one of them curb plate (3) and with the output fixed connection of motor (91), two the same fixed plate (10) of the common fixedly connected with of top one end of curb plate (3), the outside screw thread of lead screw (89) has cup jointed L shaped plate (11), the same pipe (12) of the common swing joint in inside of L shaped plate (11) and fixed plate (10), the fixed subassembly (13) of one end fixedly connected with blanking of pipe (12).

4. The protection device for in-mold insert injection according to claim 3, wherein: the blanking fixing component (13) comprises a square frame (131) fixedly connected with one side of the circular tube (12), the upper end and the lower end of the square frame (131) are both connected with T-shaped rods (132) in a sliding manner, one opposite sides of the two T-shaped rods (132) extend into the square frame (131) and are fixedly connected with clamping plates (133), the outer parts of the two T-shaped rods (132) are both movably sleeved with first springs (134), and the two first springs (134) are respectively arranged on the sides of the two clamping plates (133) far away from each other, a push rod (135) matched with the two clamping plates (133) for use is movably connected inside the circular tube (12), the side cut surfaces of the push rod (135) close to one side of the two clamping plates (133) are in a conical shape, the side cut surfaces of the two clamping plates (133) close to one side of the push rod (135) are in a right-angled triangle shape, one side of the push rod (135) extends to the outside of the circular tube (12) and is fixedly connected with a push block (136), one side of the push block (136) close to the circular tube (12) is fixedly connected with a second spring (137), and the second spring (137) is movably sleeved outside the push rod (135) and arranged between the push block (136) and the circular tube (12), a U-shaped plate (138) matched with the push block (136) is fixedly connected between the two side plates (3), and the cross section and the side section of the U-shaped plate (138) are both U-shaped.

5. The protection device for in-mold insert injection according to claim 3, wherein: a sliding chute (139) matched with the circular tube (12) is formed in the fixing plate (10), and a blanking winding assembly (14) matched with the blanking fixing assembly (13) is arranged between the fixing plate (10) and the L-shaped plate (11);

blanking winding subassembly (14) are including fixed connection at pinion rack (141) that fixed plate (10) bottom one end is close to L shaped plate (11) one side, the external fixation of pipe (12) has cup jointed toothed ring (142) with pinion rack (141) meshing.

6. The protection device for in-mold insert injection according to claim 5, wherein: fixing rods (15) are symmetrically and fixedly connected to one side, away from the toothed plate (141), of each fixing plate (10), each fixing rod (15) consists of a disc and a round rod, tension springs (16) are movably sleeved outside the two fixing plates (10), one ends of the two tension springs (16) are fixedly connected with the discs in the two fixing rods (15), and the other ends of the two tension springs (16) are fixedly connected with blanking collecting assemblies (17) matched with the blanking winding assemblies (14) respectively;

subassembly (17) is collected including push pedal (171) of fixed connection at two extension spring (16) other ends, two equal fixedly connected with wire rope (172) in one side that push pedal (171) are close to fixed plate (10), and the length of two wire rope (172) is the same, dead slot (173), two have been seted up to the inside symmetry of fixed plate (10) the inside of dead slot (173) all rotates and is connected with guide wheel (174) that use with wire rope (172) cooperation, one side fixedly connected with mounting panel (175) that L shaped plate (11) are close to fixed plate (10), two wire rope (172) keep away from the one end of push pedal (171) and pass dead slot (173) respectively and with mounting panel (175) fixed connection.

7. The protection device for in-mold insert injection according to claim 6, wherein: the fixed plate (10) is close to equal fixedly connected with diaphragm (176) in top one end of push pedal (171) one side, two equal sliding connection has T-shaped piece (177) in the inside of diaphragm (176), two bottom one end of T-shaped piece (177) all passes diaphragm (176) and fixedly connected with L shape limiting plate (178) that uses with push pedal (171) cooperation, two bottom one end of L shape limiting plate (178) and the top one end of two push pedal (171) all set up to the inclined plane that is parallel to each other, two equal movable sleeve joint in the outside of L shape limiting plate (178) has guide frame (179), and two guide frame (179) set up respectively between diaphragm (176) and push pedal (171), two all be provided with third spring (180) between L shape limiting plate (178) and two diaphragm (176), and two third spring (180) activity sleeve joint respectively in the outside of two T-shaped pieces (177).

8. The protection device for in-mold insert injection according to claim 7, wherein: lead to groove (181) has been seted up on the surface of fixed plate (10), and lead to groove (181) and set up between guide frame (179) and diaphragm (176), the inside sliding connection who leads to groove (181) has jacking board (182) of using with two L shape limiting plate (178) cooperations, and the tangent plane shape of jacking board (182) is isosceles trapezoid, two L shape limiting plate (178) are close to lead to groove (181) one side tangent plane shape and are the right trapezoid who uses with jacking board (182) cooperation, the one side of L shape limiting plate (178) and the top one end fixed connection of L shaped plate (11) are kept away from to jacking board (182).

9. A method of using the protection device for in-mold insert injection molding according to any one of claims 1 to 8, characterized in that: the method comprises the following steps: