CN112849308B - Automatic edge covering die structure - Google Patents
Automatic edge covering die structure Download PDFInfo
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- CN112849308B CN112849308B CN202011500030.0A CN202011500030A CN112849308B CN 112849308 B CN112849308 B CN 112849308B CN 202011500030 A CN202011500030 A CN 202011500030A CN 112849308 B CN112849308 B CN 112849308B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/14—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being passenger compartment fittings, e.g. seats, linings, trim, instrument panels
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
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- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
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Abstract
The invention provides an automatic edge covering die structure, and relates to the technical field of automobile manufacturing. The automatic edge covering die structure comprises an upper die structure, a lower die structure and a lower die driving structure; the upper die structure comprises a first bottom plate, a first heat insulation plate, a first die core and a first die plate, wherein a sliding block is arranged on the first die plate, and a detachable pressing end is arranged on the sliding block; the lower die structure comprises a second bottom plate, a second heat insulation plate, a blank pressing block and a second die core, a space between the second die core and the first die core forms a containing cavity for a material to be covered, and blank pressing bulges are arranged on the periphery of the blank pressing block; the lower die driving structure comprises a lower die driving plate, a second limiting structure and a locking structure; the lower die driving plate changes the relative distance with the second bottom plate through the movement of the locking structure. The locking structure is additionally arranged on the lower die driving structure, so that the driving die plate is opened and closed in sequence, the universality is strong, meanwhile, the non-appearance surface of the product framework is utilized for positioning, the positioning precision is high, and the picking and placing of the workpiece are easier.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to an automatic edge covering die structure.
Background
Many of the existing automotive interior parts need to wrap the fabric on the edge of the framework and to edge the framework. Firstly, adhering a layer of fabric to the upper surface of the framework, then bending the fabric downwards to the edge of the lower surface of the framework at the edge of the upper surface of the framework, and adhering the fabric to the edge of the lower surface of the framework to form an adhering edge covering of the fabric to the framework.
In the edge covering process, the following three processing methods are generally adopted to realize edge covering, but all the three methods have various defects.
(1) The most advanced method is a method for simulating manual edge covering by using a robot, the equipment investment cost is high, the requirement on programmers is very high by using two multi-axis robots and auxiliary tools, the technical difficulty is high, the production period is long, and the production cost is many times higher than that of manual edge covering.
(2) The electric control edge covering die is adopted to realize edge covering: an electrical control module is added on the hot press, a plurality of cylinders are arranged on the die to drive the sliding block, and the failure rate is high in the production process; the technical function can be finished by folding and wrapping the leather twice, and when the edge of the framework is touched with a spigot edge and the four times of folding and wrapping are needed and the corner is wrapped and folded, the electric control wrapping die can not be finished, and the equipment investment cost is high.
(3) Mechanical parts are adopted to transmit kinetic energy to realize edge covering: the mold opening and closing kinetic energy of the press is fully utilized, mold opening and closing actions are designed according to the product edge wrapping and folding times and sequence, and the mold structure is determined according to the mold opening and closing action sequence; the motion grading is totally on the upper die, and the limitation is also existed for the product shapes with different shapes; the positioning requirements of the product placed into the mold cavity are different, the A surface, namely the shape surface skin of the appearance surface, is usually adopted for positioning, and the A surface of some products cannot be used for positioning, so that certain limitations exist.
Currently, the above method (3) is often used by various processing enterprises for various reasons. Therefore, improvement aiming at the method (3) is urgently needed to solve the limitation and improve the edge covering efficiency.
Disclosure of Invention
The invention aims to provide an automatic edge covering die structure which is positioned by utilizing a non-appearance surface of a product, realizes an edge covering function through the transmission kinetic energy of mechanical parts, is beneficial to improving the positioning precision, improves the universality of an automatic edge covering scheme, enables the taking and placing of parts to be more efficient and improves the edge covering efficiency.
The technical scheme adopted by the invention is as follows: an automatic edge covering die structure comprises an upper die structure, a lower die structure and a lower die driving structure; the upper die structure comprises a first bottom plate, a first heat insulation plate, a first die core and a first template, wherein the upper end surface of the first heat insulation plate is connected with the lower end surface of the first bottom plate, the upper end surfaces of the first die core and the first template are connected with the lower end surface of the first heat insulation plate, and the first template surrounds the periphery of the first die core; the lower end face of the first template is provided with a sliding block, the sliding block comprises a fixing part and a sliding part, a driving groove with a downward opening is formed between the fixing part and the sliding part, the sliding part can slide along the direction of the first mold core, the upper part of the sliding part is provided with a transverse first return spring, and one side of the sliding part, which is close to the first mold core, is provided with a detachable pressing end;
the lower die structure comprises a second bottom plate, a second heat insulation plate, an edge pressing block and a second die core, the lower end face of the second heat insulation plate is connected with the upper end face of the second bottom plate, the upper end face of the second heat insulation plate is connected with the lower end face of the edge pressing block, and the second die core is located in the center above the edge pressing block and is connected with the edge pressing block through a first guide structure, a first limiting structure and a second return spring; a space between the second mold core and the first mold core forms a containing cavity for a material to be covered; upward edge pressing protrusions are arranged on the periphery of the edge pressing block; the first guide structure comprises a first guide pillar, a first guide sleeve and a first ball sleeve, the first guide pillar is arranged on the lower end face of the second mold core, the first guide sleeve is arranged on the edge pressing block, and the first ball sleeve is positioned between the first guide pillar and the first guide sleeve; the first limiting mechanism comprises a first limiting rod and a limiting hole, the first limiting rod comprises a body end and a limiting end, the diameter of the limiting end is larger than that of the body end, the limiting hole is formed in the edge pressing block, the limiting hole comprises a limiting layer and a moving layer, the aperture of the limiting layer is smaller than that of the moving layer, and the body end penetrates through the moving layer and the limiting layer from bottom to top and is fixed on the lower end face of the second mold core; the second return spring is arranged at the upper part of the blank holder block and corresponds to a return spring hole on the second mold core;
the lower die driving structure comprises a lower die driving plate, a second limiting structure and a locking structure; the lower die driving plate is connected with the upper end face of the second bottom plate through a second limiting structure, and the relative distance between the lower die driving plate and the second bottom plate is changed through the movement of the locking structure; the upper end face of the lower die driving plate is provided with a plurality of driving blocks, the driving blocks are arranged along the edges of the blank holder blocks, and the top ends of the driving blocks can be inserted into the driving grooves of the corresponding sliding blocks; the second limiting structure comprises a second limiting rod, the second limiting rod is installed on the upper portion of the second bottom plate, the second limiting rod comprises a limiting rod body and a limiting rod head, the diameter of the limiting rod head is larger than that of the limiting rod body, the lower die drive plate is sleeved on the second limiting rod, a third reset spring is further sleeved at the lower end of the lower die drive plate, and the third reset spring is in a normally-telescopic state and enables the upper end face of the lower die drive plate to abut against the lower surface of the limiting rod head.
Preferably, the hasp structure includes unblock pole, hasp seat and hasp core, the unblock pole is fixed on the first template, the hasp seat is fixed the up end of second bottom plate, set up the unblock hole that link up upper and lower surface on the hasp seat, and with the communicating horizontal core groove of unblock hole, the hasp core is transversely installed through fourth reset spring in the lower mould drive plate, its tip rises in the core inslot, the tip of unblock pole and hasp core all is the wedge form, the inclined plane of unblock pole is close to hasp core one side, the inclined plane on the hasp core with the inclined plane of unblock pole is corresponding.
Preferably, the lock catch structure comprises a lock catch seat, a locking block, an unlocking block, a lock catch core and an unlocking rod, the lock catch seat is fixed at the edge of the lower die driving plate, the bottom surface of the lock catch seat is flush with the bottom surface of the lower die driving plate, and the lock catch seat is provided with an unlocking hole and a sliding hole which penetrate through the upper surface and the lower surface as well as a core groove which communicates the unlocking hole and the sliding hole; the bottom end of the locking block is fixed on the upper end face of the second bottom plate, the locking block penetrates through the sliding hole, and a first groove is formed in the middle of the locking block; the unlocking block comprises an unlocking part and a resetting part, the width of the resetting part is larger than that of the unlocking part, the whole unlocking block is inverted L-shaped, the unlocking part penetrates through the unlocking hole from top to bottom, a second groove is formed in the middle of the unlocking part, and a fifth reset spring is arranged between the lower end face of the resetting part and the upper end face of the lock catch seat; the lock core is transversely arranged in the core groove and comprises a first conical part close to the locking block and a second conical part close to the unlocking block; the unlocking rod is fixed on the first template, and the lower end of the unlocking rod is aligned to the upper end face of the unlocking block.
Furthermore, the middle parts of the locking block and the unlocking block are respectively provided with a transverse limiting pin.
Furthermore, the bottom end of the unlocking rod is also provided with a fine adjustment block.
Furthermore, the automatic edge covering die structure further comprises a plurality of second guide structures, each second guide structure comprises a second column base, a second guide column, a second ball sleeve, a second guide sleeve and a second sleeve base, the second column base and the second guide column are fixed to the lower portion of the first base plate, the second sleeve base is fixed to the upper portion of the second base plate, the second guide sleeve is sleeved in the second sleeve base, the second ball sleeve is sleeved in the second guide sleeve, and the second guide column is matched with the second ball sleeve.
Furthermore, a limiting block is installed on the lower portion of the first template, the limiting block is installed on the lower portion of the outer edge of the first template, and the lower end of the limiting block corresponds to the top end of the second limiting rod.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the lower die structure of the invention is a grading action, and the lock catch structure is additionally arranged on the lower die driving structure, so that the driving die plate is ensured to be opened and closed according to a set sequence, the universality is strong, meanwhile, the non-appearance surface of the product framework is utilized to position, the positioning precision is high, and the picking and placing of the workpiece are easier.
2. The automatic edge covering machine disclosed by the invention realizes automatic edge covering by utilizing the self opening and closing die kinetic energy of the press, achieves the purpose of automatic edge covering, is easy to maintain, is favorable for improving the quality of a coated product in the automobile industry, and provides a good foundation for automatic equipment.
Drawings
Fig. 1 is a sectional view of the structure of the automatic hemming die of the present invention.
Fig. 2 is a cross-sectional view of one embodiment of a-a in fig. 1.
Fig. 3 is a cross-sectional view of an alternative embodiment a-a of fig. 1.
Fig. 4 is a schematic structural view of a slider.
Fig. 5 is a schematic structural view of the first guide structure.
Fig. 6 is a schematic structural diagram of the first limiting structure.
Fig. 7 is a schematic structural diagram of the second limiting structure.
Fig. 8, 9 and 10 are schematic views showing changes in the operating state of the unlocking structure in embodiment 1.
Fig. 11, 12, and 13 are schematic views showing changes in the operating state of the unlocking structure in embodiment 2.
In the figure: 100. an upper die structure; 200. a lower die structure; 300. a lower die driving structure; 101. a first base plate; 102. a first heat insulation plate; 103. a first mold core; 104. a first template; 105. a slider; 105a, a fixing part; 105b, a sliding part; 105c, a driving groove; 105d, a first return spring; 105e, a compression end; 201. a second base plate; 202. a second heat insulation plate; 203. pressing an edge block; 204. a second mold core; 205. a first guide structure; 206. a first limit structure; 207. a second return spring; 208. a material accommodating cavity to be covered; 209. the edge pressing bulge; 205a, a first guide post; 205b, a first guide sleeve; 205c, a first ball sleeve; 206a, a first limiting rod; 206b, a limiting hole; 206c, body end; 206d, a limiting end; 206e, a limit layer; 206f, moving layer; 210. a return spring aperture; 301. a lower die driving plate; 302. a second limit structure; 50. a locking structure; 303. a drive block; 302a, a second limiting rod; 302b, a limiting rod body; 302c, a stopper rod head; 302d, a third return spring; 51. an unlocking lever; 52. a lock catch seat; 53. a lock core; 54. unlocking the hole; 55. a fourth return spring; 56. a locking block; 57. unlocking the block; 58. a sliding hole; 59. a core groove; 561. a first groove; 571. an unlocking portion; 572. a reset section; 573. a second groove; 574. a fifth return spring; 531. a first tapered portion; 532. a second tapered portion; 60. a spacing pin; 61. fine tuning blocks; 400. a second guide structure; 401. a second column base; 402. a second guide post; 403. a second ball housing; 404. a second guide sleeve; 405. a second socket; 106. and a limiting block.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
Referring to fig. 1 and 2, in a preferred embodiment of the present invention, an automatic hemming mold structure includes an upper mold structure 100, a lower mold structure 200, and a lower mold driving structure 300.
The upper die structure 100 comprises a first bottom plate 101, a first heat insulation plate 102, a first die core 103 and a first die plate 104, wherein the upper end surface of the first heat insulation plate 102 is connected with the lower end surface of the first bottom plate 101, the upper end surfaces of the first die core 103 and the first die plate 104 are connected with the lower end surface of the first heat insulation plate 102, and the first die plate 104 surrounds the first die core 103.
A slide block 105 is installed on the lower end surface of the first mold plate 104, as shown in fig. 4, the slide block 105 includes a fixed portion 105a and a sliding portion 105b, a driving groove 105c which is open downwards is formed between the fixed portion 105a and the sliding portion 105b, the sliding portion 105b can slide along the direction of the first mold core 103, a transverse first return spring 105d is installed on the upper portion of the sliding portion 105b, and a detachable pressing end 105e is arranged on the side of the sliding portion 105b close to the first mold core 103.
With reference to fig. 1, the lower mold structure 200 includes a second bottom plate 201, a second heat insulation plate 202, a blank holder block 203 and a second mold core 204, wherein a lower end surface of the second heat insulation plate 202 is connected to an upper end surface of the second bottom plate 201, an upper end surface of the second heat insulation plate 202 is connected to a lower end surface of the blank holder block 203, the second mold core 204 is located at the center above the blank holder block 203 and is connected to the blank holder block 203 through a first guide structure 205, a first limit structure 206 and a second return spring 207; a space between the second mold core 204 and the first mold core 103 forms a material accommodating cavity 208 to be edged; the periphery of the edge pressing block 203 is provided with upward edge pressing protrusions 209.
As shown in fig. 5, the first guiding structure 205 includes a first guide post 205a, a first guide sleeve 205b and a first ball sleeve 205c, the first guide post 205a is mounted on the lower end surface of the second mold core 204, the first guide sleeve 205b is mounted on the edge pressing block 203, and the first ball sleeve 205c is located between the first guide post 205a and the first guide sleeve 205 b.
As shown in fig. 6, the first limiting mechanism 206 includes a first limiting rod 206a and a limiting hole 206b, the first limiting rod 206a includes a body end 206c and a limiting end 206d, the diameter of the limiting end 206d is larger than that of the body end 206c, the limiting hole 206b is opened on the edge-pressing block 203, the limiting hole 206b includes a limiting layer 206e and a moving layer 206f, the aperture of the limiting layer 206e is smaller than that of the moving layer 206f, and the body end 206c passes through the moving layer 206f and the limiting layer 206e from bottom to top and is fixed on the lower end surface of the second mold core 204.
With continued reference to fig. 1 and 4, a second return spring 207 is mounted on the upper portion of the edge-pressing block 203, corresponding to a return spring hole 210 on the second mold core 204.
The lower die driving structure 300 comprises a lower die driving plate 301, a second limiting structure 302 and a locking structure 50; the lower die driving plate 301 is connected with the upper end face of the second base plate 201 through a second limiting structure 302, and changes the relative distance with the second base plate 201 through the movement of the locking structure 50; the upper end surface of the lower die driving plate 301 is provided with a plurality of driving blocks 303, the plurality of driving blocks 303 are arranged along the edge of the edge pressing block 203, and the top ends of the driving blocks 303 can be inserted into the driving grooves 105c of the corresponding sliding blocks 105.
In the edge covering process, the driving block 303 and the sliding block 105 move oppositely, the top end of the driving block 303 is inserted into the driving groove 105c of the sliding block 105, the extrusion sliding part 105b moves transversely, the pressing end 105e is driven to move towards the edge covering material accommodating cavity, and the material to be edge covered is pressed tightly; after the hemming is completed, the driving block 303 and the slider 105 are moved away from each other, the tip of the driving block 303 is disengaged from the driving groove 105c, and the sliding portion 105b is returned by the urging force of the first return spring 105 d.
Referring to fig. 7, the second limiting structure 302 includes a second limiting rod 302a, the second limiting rod 302a is installed on the upper portion of the second bottom plate 201, the second limiting rod 302a includes a limiting rod body 302b and a limiting rod head 302c, the diameter of the limiting rod head 302c is larger than that of the limiting rod body 302b, the lower die driving plate 301 is sleeved on the second limiting rod 302a, a third return spring 302d is further sleeved at the lower end of the lower die driving plate 301, and the third return spring 302d is in a normally-extended state, so that the upper end surface of the lower die driving plate 301 abuts against the lower surface of the limiting rod head 302 c.
Please refer to fig. 1 and fig. 4, the upper end surface of the first bottom plate 101 and the lower end surface of the second bottom plate 201 are connected to other structures, and the other structures apply a downward force to the first bottom plate 101 during the edge covering process, and details of the other structures are not repeated herein.
The space between the second mold core 204 and the first mold core 103 forms a material accommodating cavity 208 to be bound, which is a working cavity of the binding mold. In the edge covering process, the material to be covered comprises a framework and a skin, or the framework and any other sheet-shaped objects which cover the surface of the framework and have larger area than the surface of the framework. And after the edge covering material is subjected to edge covering, obtaining a finished edge covering product.
In this embodiment, the structural components that actually contact the material to be hemmed are: the first mold core 103, the second mold plate, the clamping end 105e of the slide 105, and the clamping projection 209 of the clamping block 203. The shapes of the pressing end 105e and the edge pressing protrusion 209 correspond to the edge covering shape of the finished edge covering product, and are not described in detail herein because precise measurement, calculation and design are required. Under the action of external force, the first mold core 103 and the second mold plate respectively clamp the material to be edge-wrapped in the upper and lower directions, the material to be edge-wrapped is bent by the transversely moving pressing end 105e, and then the material to be edge-wrapped is edge-wrapped by the upward moving edge-wrapping protrusion 209, so that edge wrapping is realized, and a packaging finished product is obtained. In this process, the mating of other structural components, particularly the mating of the latch structure 50, is required. Just under the accurate cooperation of hasp structure 50, lower mould drive plate 301 can open and shut the mould according to the order of setting for, realizes automatic borduring.
The locking structure 50 comprises an unlocking rod 51, a locking seat 52 and a locking core 53, wherein the unlocking rod 51 is fixed on the first template 104, the locking seat 52 is fixed on the upper end surface of the second bottom plate 201, the locking seat 52 is provided with an unlocking hole 54 penetrating through the upper surface and the lower surface, and a transverse core groove 59 communicated with the unlocking hole 54, the locking core 53 is transversely arranged in the lower die driving plate 301 through a fourth reset spring 55, the end part of the locking core 53 is lifted into the core groove 59, the end parts of the unlocking rod 51 and the locking core 53 are both in a wedge shape, the inclined surface of the unlocking rod 51 is close to one side of the locking core 53, and the inclined surface of the locking core 53 corresponds to the inclined surface of the unlocking rod 51.
The working principle of the automatic edge covering die is as follows: (1) placing the material to be edged into the material accommodating cavity 208; (2) the upper die structure 100 moves downwards, the second die core 204 and the first die core 103 are used for prepressing and positioning the material to be hemmed, and the 1 st flanging is completed; (3) the upper die structure 100 continues to move downwards, the driving block 303 pushes the pressing end 105e of the sliding block 105 to edge the material to be edged, and the 2 nd edging is completed; (4) the upper die structure 100 continues to move downwards, the lock catch structure 50 is unlocked, the lower die driving plate 301 moves downwards together with the upper die structure 100, and the edge pressing block 203 presses the edge of the material to be edge-folded to finish the 3 rd folding; (5) the upper mould structure 100 continues to move downwards to the lowest position, and the pressing is kept, and at the moment, the glue is activated; (6) the upper die structure 100 moves upwards, other parts reset, and the finished product of the edge covering is taken out.
In this embodiment, referring to fig. 7, 8 and 9, the operation principle of the locking structure 50 is as follows:
(1) when the unlocking rod 51 moves downwards, the inclined surface of the unlocking rod is contacted with the inclined surface of the lock catch core 53, so that the lock catch core 53 moves transversely and gradually moves away from the core groove 59 on the lock catch seat 52; when the unlocking rod 51 continues to move downwards, the lock core 53 is completely separated from the core slot 59 due to the pressing of the unlocking rod 51, the lower die driving plate 301 is also completely separated from the lock seat 52, and the lower die driving plate 301 moves downwards under the pressure of the upper die structure 100 until the second bottom surface is completely pressed;
(2) when the hemming is finished, the upper die structure 100 and the unlocking rod 51 both move upwards, the lower die driving plate 301 also moves upwards under the action of the third return spring 302d, when the locking core 53 reaches the position of the core slot 59, the locking core 53 moves transversely under the action of the fourth return spring 55 and is clamped into the core slot 59, and the lower die driving plate 301 stops moving and returns to the initial position.
Certainly, in order to reduce the error of each part during operation and improve the processing precision, the automatic edge covering die structure further includes a plurality of second guide structures 400, each second guide structure 400 includes a second base 401, a second guide pillar 402, a second ball sleeve 403, a second guide sleeve 404 and a second base 405, the second base 401 and the second guide pillar 402 are fixed at the lower part of the first base plate 101, the second base 405 is fixed at the upper part of the second base plate 201, the second guide sleeve 404 is sleeved in the second base 405, the second ball sleeve 403 is sleeved in the second guide sleeve 404, and the second guide pillar 402 is matched with the second ball sleeve 403. Generally, the second guide structures 400 are four in number, and are disposed at four corner positions of the entire structure, respectively.
Meanwhile, since the first die plate 104 and the lower die driving plate 301 relatively move, and a stopper device is required to be disposed between the first die plate 104 and the lower die driving plate 301 in order to protect the slider 105, the driving block 303, and the like disposed therebetween, the stopper 106 is mounted on the lower portion of the first die plate 104, and the stopper 106 is mounted on the lower portion of the outer edge of the first die plate 104, and the lower end thereof corresponds to the tip end of the second stopper rod 302 a.
Example 2
In this embodiment, the structure is the same as that of embodiment 1 except that the locking structure 50 is slightly different.
Referring to fig. 3, the latch structure 50 of the present embodiment includes a latch seat 52, a locking block 56, an unlocking block 57, a latch core 53 and an unlocking rod 51, wherein the latch seat 52 is fixed at the edge of the lower die driving plate 301, and the bottom surface of the latch seat is flush with the bottom surface of the lower die driving plate 301, the latch seat 52 is provided with an unlocking hole 54 and a sliding hole 58 penetrating the upper and lower surfaces, and a core groove 59 communicating the unlocking hole 54 and the sliding hole 58; the bottom end of the locking block 56 is fixed on the upper end surface of the second bottom plate 201, the locking block 56 passes through the sliding hole 58, and the middle part of the locking block 56 is provided with a first groove 561; the unlocking block 57 comprises an unlocking part 571 and a resetting part 572, the width of the resetting part 572 is larger than that of the unlocking part 571, the unlocking block 57 is integrally in an inverted L shape, the unlocking part 571 penetrates through the unlocking hole 54 from top to bottom, a second groove 573 is formed in the middle of the unlocking part 571, and a fifth resetting spring 574 is arranged between the lower end face of the resetting part 572 and the upper end face of the lock catch seat 52; the lock core 53 is transversely arranged in the core groove 59, and the lock core 53 comprises a first conical part 531 close to the locking block 56 and a second conical part 532 close to the unlocking block 57; the unlocking lever 51 is fixed to the first template 104 with its lower end aligned with the upper end face of the unlocking piece 57.
In order to prevent the locking block 56 and the unlocking block 57 from being separated from the latch seat 52, a transverse limit pin 60 is installed at the middle part of each of the locking block 56 and the unlocking block 57. Therefore, when the locking block 56, the unlocking block 57 and the lock catch seat 52 move relatively, the limiting pin 60 limits the maximum displacement between the locking block 56 and the lock catch seat 52 and between the unlocking block 57 and the lock catch seat 52, and the safety of the structure operation is ensured.
Since the material or thickness of the material to be edged is changed, the bottom end of the lock release lever 51 is further provided with a fine adjustment block 61 in order to cope with the material to be edged having different thicknesses. The distance between the unlocking rod 51 and the unlocking block 57 can be adjusted through the fine adjustment block 61, so that the unlocking time of the locking structure 50 is adjusted, and the purpose of control is achieved.
In this embodiment, referring to fig. 10, 11 and 12, the operation principle of the locking structure 50 is as follows:
(1) when the unlocking rod 51 presses the unlocking block 57 downward, the unlocking block 57 moves downward in the lock catch seat 52, when the second groove 573 approaches the lock catch core 53, the lock catch core 53 starts to slide toward the unlocking block 57 and moves away from the locking block 56, when the second groove 573 is completely aligned with the lock catch core 53, the second groove 573 is completely attached to the second tapered portion 532, the first tapered portion 531 is detached from the locking block 56, and the unlocking block 57 drives the lock catch seat 52 and the lower die driving plate 301 to move downward until the hemming block 203 presses the hemming edge.
(2) When the hemming is finished, under the action of the third return spring 302d, the lower die driving plate 301 and the latch base 52 move upward at the same time, the latch core 53 also moves upward, the first taper portion 531 of the latch core 53 slides upward along the outer surface of the locking block 56, when the first taper portion 531 slides to the first groove 561, since the unlocking block 57 is always subjected to the upward acting force given by the fifth return spring 574, the second groove 573 of the unlocking block 57 gives the lateral acting force to the latch core 53, the latch core 53 automatically slides to the side of the locking block 56, so that the first taper portion 531 completely clings to the first groove 561, at this time, the unlocking block 57 returns to the initial position under the acting force of the fifth return spring 574, and the lower die driving plate 301 and the latch base 52 also return to the initial positions.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An automatic edge covering die structure is characterized by comprising an upper die structure, a lower die structure and a lower die driving structure;
the upper die structure comprises a first bottom plate, a first heat insulation plate, a first die core and a first template, wherein the upper end surface of the first heat insulation plate is connected with the lower end surface of the first bottom plate, the upper end surfaces of the first die core and the first template are connected with the lower end surface of the first heat insulation plate, and the first template surrounds the periphery of the first die core;
the lower end face of the first template is provided with a sliding block, the sliding block comprises a fixing part and a sliding part, a driving groove with a downward opening is formed between the fixing part and the sliding part, the sliding part can slide along the direction of the first mold core, the upper part of the sliding part is provided with a transverse first return spring, and one side of the sliding part, which is close to the first mold core, is provided with a detachable pressing end;
the lower die structure comprises a second bottom plate, a second heat insulation plate, an edge pressing block and a second die core, the lower end face of the second heat insulation plate is connected with the upper end face of the second bottom plate, the upper end face of the second heat insulation plate is connected with the lower end face of the edge pressing block, and the second die core is located in the center above the edge pressing block and is connected with the edge pressing block through a first guide structure, a first limiting structure and a second return spring; a space between the second mold core and the first mold core forms a containing cavity for a material to be covered; upward edge pressing protrusions are arranged on the periphery of the edge pressing block;
the first guide structure comprises a first guide pillar, a first guide sleeve and a first ball sleeve, the first guide pillar is arranged on the lower end face of the second mold core, the first guide sleeve is arranged on the edge pressing block, and the first ball sleeve is positioned between the first guide pillar and the first guide sleeve;
the first limiting structure comprises a first limiting rod and a limiting hole, the first limiting rod comprises a body end and a limiting end, the diameter of the limiting end is larger than that of the body end, the limiting hole is formed in the edge pressing block, the limiting hole comprises a limiting layer and a moving layer, the aperture of the limiting layer is smaller than that of the moving layer, and the body end penetrates through the moving layer and the limiting layer from bottom to top and is fixed on the lower end face of the second mold core;
the second return spring is arranged at the upper part of the blank holder block and corresponds to a return spring hole on the second mold core;
the lower die driving structure comprises a lower die driving plate, a second limiting structure and a locking structure; the lower die driving plate is connected with the upper end face of the second bottom plate through a second limiting structure, and the relative distance between the lower die driving plate and the second bottom plate is changed through the movement of the locking structure; the upper end face of the lower die driving plate is provided with a plurality of driving blocks, the driving blocks are arranged along the edges of the blank holder blocks, and the top ends of the driving blocks can be inserted into the driving grooves of the corresponding sliding blocks;
the second limiting structure comprises a second limiting rod, the second limiting rod is installed on the upper portion of the second bottom plate, the second limiting rod comprises a limiting rod body and a limiting rod head, the diameter of the limiting rod head is larger than that of the limiting rod body, the lower die driving plate is sleeved on the second limiting rod, a third reset spring is further sleeved at the lower end of the lower die driving plate, and the third reset spring is in a normally-stretched state, so that the upper end face of the lower die driving plate abuts against the lower surface of the limiting rod head;
the limiting block is installed on the lower portion of the first template, the limiting block is installed on the lower portion of the outer edge of the first template, and the lower end of the limiting block corresponds to the top end of the second limiting rod.
2. The automatic hemming die structure of claim 1 wherein the latch structure includes an unlocking lever, a latch seat and a latch core, the unlocking lever is fixed on the first die plate, the latch seat is fixed on the upper end surface of the second base plate, the latch seat is provided with an unlocking hole penetrating through the upper and lower surfaces, and a transverse core groove communicated with the unlocking hole, the latch core is transversely installed in the lower die driving plate through a fourth return spring, the end part of the latch core rises into the core groove, the end parts of the unlocking lever and the latch core are both wedge-shaped, the inclined surface of the unlocking lever is close to one side of the latch core, and the inclined surface of the latch core corresponds to the inclined surface of the unlocking lever.
3. The automatic hemming die structure of claim 1 wherein the latch structure includes a latch seat, a locking block, an unlocking block, a latch core and an unlocking lever, the latch seat is fixed at an edge of the lower die driving plate, a bottom surface of the latch seat is flush with a bottom surface of the lower die driving plate, the latch seat is provided with an unlocking hole and a sliding hole penetrating through an upper surface and a lower surface, and a core groove communicating the unlocking hole and the sliding hole; the bottom end of the locking block is fixed on the upper end face of the second bottom plate, the locking block penetrates through the sliding hole, and a first groove is formed in the middle of the locking block; the unlocking block comprises an unlocking part and a resetting part, the width of the resetting part is larger than that of the unlocking part, the whole unlocking block is inverted L-shaped, the unlocking part penetrates through the unlocking hole from top to bottom, a second groove is formed in the middle of the unlocking part, and a fifth reset spring is arranged between the lower end face of the resetting part and the upper end face of the lock catch seat; the lock core is transversely arranged in the core groove and comprises a first conical part close to the locking block and a second conical part close to the unlocking block; the unlocking rod is fixed on the first template, and the lower end of the unlocking rod is aligned to the upper end face of the unlocking block.
4. An automatic hemming die structure according to claim 3 wherein the middle portions of the locking block and the unlocking block are each provided with a transverse stopper pin.
5. An automatic hemming die structure according to claim 4 wherein a fine adjustment block is further provided at a bottom end of the lock releasing lever.
6. An automatic hemming die structure according to claim 5 further comprising a plurality of second guide structures, each of the second guide structures including a second post base, a second guide post, a second ball sleeve, a second guide sleeve and a second sleeve base, the second post base and the second guide post being fixed to a lower portion of the first base plate, the second sleeve base being fixed to an upper portion of the second base plate, the second guide sleeve being fitted in the second sleeve base, the second ball sleeve being fitted in the second guide sleeve, and the second guide post being engaged with the second ball sleeve.
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| CN202011500030.0A CN112849308B (en) | 2020-12-17 | 2020-12-17 | Automatic edge covering die structure |
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| CN202011500030.0A CN112849308B (en) | 2020-12-17 | 2020-12-17 | Automatic edge covering die structure |
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| JP4280653B2 (en) * | 2004-02-09 | 2009-06-17 | 南条装備工業株式会社 | Molded body manufacturing equipment |
| CN103831358B (en) * | 2014-03-23 | 2015-12-16 | 昆山市三建模具机械有限公司 | Refrigerator door plank edge-covering bending die |
| CN104249115B (en) * | 2014-10-20 | 2016-03-30 | 福建省华科模具科技有限公司 | A kind of diel of housing |
| CN209110019U (en) * | 2018-09-10 | 2019-07-16 | 广州敏惠汽车零部件有限公司 | A kind of mould structure of the upward bound edge of doorframe center pillar inner and outer plates |
| CN209189643U (en) * | 2018-09-30 | 2019-08-02 | 东莞市豪顺精密科技有限公司 | A kind of interior bound edge bending structure of lateral punching mold |
| CN110153290B (en) * | 2019-06-30 | 2020-07-10 | 重庆长安汽车股份有限公司 | Car front shroud planking slide wedge turn-ups mould structure |
| CN211390024U (en) * | 2019-12-27 | 2020-09-01 | 东莞市耐可泰机械模具有限公司 | Locking buckle of buckling machine |
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