CN205395040U - Motor light cover mould demoulding mechanism - Google Patents

Abstract

The utility model discloses a motor light cover mould demoulding mechanism, its technical scheme main points are: including cover half and movable mould, be equipped with on the movable mould and be used for the merciful and peaceful push pedal that is used for ejecting product of the fashioned movable mould of product, being equipped with one end in the push pedal and fixing in the push pedal, the other end is contradicted in the thimble on product surface, the left and right sides face of movable mould is equipped with first side and takes out the subassembly, and be equipped with second side on the leading flank of movable mould and take out the subassembly, insert movable mould benevolence and the removal is inserted including fixed, be equipped with the guide rail on fixed the inserting, the removal is inserted to slide and is connected on the guide rail, the removal insert and the push pedal between be equipped with and be used for the drive to remove the push rod insert.

Description

Automotive lampshade mold release mechanism

technical field

The utility model relates to the field of injection molds, in particular to a demoulding mechanism for an automobile lampshade mold.

Background technique

Injection molds are widely used in the field of plastic products and can produce products of various shapes.

The automobile lampshade shown in accompanying drawing 1 and 2, it is divided into the left lampshade 2 and the right lampshade 3 of mirror image symmetry, lampshade 1 comprises the first side 4 and the second side 5 that are arranged in the shape of "L" as a whole, said first One side 4 and the second side 5 are respectively provided with a first flange 6 and a second flange 7, the first flange 6 is bent and is provided with a first fixing hole 8, and the second side is provided with The second fixing hole 9; wherein, the first fixing hole 8 is along the demoulding direction, and the second fixing hole 9 is perpendicular to the demoulding direction.

For example, the Chinese patent with the notification number CN21712127U discloses a secondary synchronous core-pulling mechanism for automobile headlight molds with undercuts. In order to facilitate the demoulding of products with undercuts in all directions, core-pulling is required on each side of the mold. Set the core pulling block in the direction, and cooperate with the thimble to achieve good demoulding of the product. For the products shown in Figures 1 and 2, side-drawing mechanisms are traditionally installed on the left, right, and front sides. When demoulding, the side-drawing mechanism pulls out the product, and then the product is ejected by the thimble. However, because the product is thin, there is a flanging, and the flanging is relatively fragile. When the ejector pin pushes the product out, the product is instantly and partially stressed, which is easy to cause damage.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a demoulding mechanism for automobile lampshade molds which is not suitable for damage and complete demoulding.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a demoulding mechanism for an automobile lampshade mold, including a fixed mold and a movable mold, and the movable mold is provided with a movable mold core for product molding and a mold for ejection. The push plate of the product, the push plate is provided with a thimble with one end fixed on the push plate and the other end touching the surface of the product. The left and right sides of the movable mold are provided with first side pumping components, and the front side of the movable mold is A second side drawer assembly is provided, the moving mold core includes a fixed insert and a moving insert, a guide rail is provided on the fixed insert, and the moving insert is slidably connected to the guide rail, and the moving insert and A push rod for driving the moving insert is arranged between the push plates.

Through the above settings, the first side pumping assembly, the second side pumping assembly, the fixed insert, the moving insert and the fixed film core on the fixed mold together form the cavity of the molded product. When the product is demolded after molding, the movable mold and the fixed film are separated. At this time, the first side-drawing assembly and the second side-drawing assembly perform lateral core-pulling to give way; then, the push plate pushes the thimble and the push rod upward at the same time , the push rod pushes the moving insert to move along the guide rail, the moving insert and the thimble respectively withstand the bottom and flanging of the product and at the same time push the product upward and out of the movable mold core to realize the demoulding of the product. Here, because the product will be adsorbed on the movable mold core after it is formed, the force required at the beginning of the ejection of the product is relatively large, so by moving the insert and the thimble together to eject the product in multiple places, increasing the force application point and area, effectively preventing The product is damaged when it is ejected from the mold.

Preferably, the guide rail is inclined to the direction away from the second side drawer assembly, the bottom of the moving insert is provided with a sliding groove parallel to the bottom surface of the moving insert, and the push rod is slidably connected in the sliding groove , the end of the push rod away from the sliding groove is fixed on the push plate.

Through the above settings, when the push plate drives the moving insert to move upward through the push rod, the moving insert will move obliquely upward along the inclined guide rail, that is, when pushing the product again, it will be separated from the product surface backward. During the demoulding process of the product, Since the product is attached to the moving mold core, the force required to push the product initially is relatively large, so the moving insert and the thimble need to work together to prevent product damage; however, when the product is pushed, the required force is relatively large Small, at this time, the mobile insert is still attached to the product, which may cause the problem that the product is not suitable for removal. Therefore, the guide rail arranged obliquely here makes the mobile insert move upward while moving backward to achieve the purpose of detaching from the product surface. The purpose is to make the product get out of the mold more smoothly and prevent the product from sticking to the moving insert. Since the moving insert will produce a lateral displacement relative to the push plate, the push rod is connected to the sliding groove in a slidable form, and the bottom end of the push rod is fixed on the push plate. When the moving insert moves obliquely upwards, in order to To avoid the phenomenon of jamming and interference, the push rod relatively slides laterally in the sliding groove.

Preferably, the inclination angle of the guide rail is 10°-15°.

Through the above settings, if the inclination angle of the guide rail is too large, the lateral movement distance of the moving insert will be very long, which will easily increase the volume of the mold or cause interference, and at the same time, the push rod and the moving insert will easily get stuck; if the inclination angle of the guide rail If it is too small, the moving insert cannot be separated from the product, and it is inconvenient to take out the product, so 10°~15° is used here.

Preferably, the first side pumping assembly includes a first insert that matches the contour of the first side, a first power part that drives the first insert to move, is fixed on the movable mold and is used to fix the first power part the first fixed block.

Through the above setting, the first fixed block fixes the first power part to the side of the movable mold, and the first power part is connected to the first insert. The outline of the first insert conforms to the shape of the side of the product and is used for product molding. When pumping, the first power unit drives the insert to move away from the side of the product, effectively realizing lateral core pulling and allowing the product to be demoulded smoothly.

Preferably, the second side pumping assembly includes a second insert that matches the contour of the second side, a second power part that drives the second insert to move, is fixed on the movable mold and is used to fix the second power part The second fixing block is provided with a second cylinder for forming a second fixing hole on the second insert.

Through the above setting, the second fixed block fixes the second power part on the front side of the movable mold, the second power part is connected to the second insert, the contour of the second insert conforms to the shape of the side of the product and is used for product molding. When side-drawing, the second power part drives the insert to move away from the front side of the product, effectively realizing the lateral core-pulling, so that the product can be demoulded smoothly; here, due to the hole structure on the product, the second insert is set on the second insert. Two cylinders are formed.

Preferably, the upper surface of the fixing insert coincides with the contour of the bottom surface of the product and a first cylinder for forming the first fixing hole is arranged on it.

Through the above setting, the contour of the fixed insert conforms to the shape of the lower surface of the product and is used for product molding. Here, because there is a hole structure on the product, the first cylinder is set on the second fixed insert for molding.

Preferably, the fixed insert is provided with a first guide groove, the guide rail is embedded in the first guide groove, the moving insert is provided with a second guide groove, and the moving insert passes through the second guide groove Cooperate with guide rail to realize sliding.

Through the above settings, the guide rail and the fixed insert adopt a separate structure, and the guide rail is embedded in the first guide groove of the fixed insert. In this way, when the movable insert and the fixed insert need to be disassembled, the guide rail can be pulled out to realize two Separation of the operator, easy replacement and maintenance.

Preferably, both the first guide groove and the second guide groove are T-shaped grooves, and the guide rail is an "I"-shaped guide rail.

Through the above arrangement, the cooperation between the T-shaped slot and the "I"-shaped guide rail can effectively enhance the stability of the moving insert when moving, and at the same time avoid the separation between the moving insert and the guide rail in the non-moving direction.

In summary, the utility model has the beneficial effects compared with the prior art: when the product is demolded, the moving insert and the thimble act together on the product, effectively preventing the product from being damaged when it is ejected; at the same time, the moving insert itself is on the product After the ejection works at the beginning, it will detach from the surface of the product backwards, which is convenient for the smooth removal of the product.

Description of drawings

Fig. 1 is the structural representation of product in the embodiment;

Fig. 2 is the back structure schematic diagram of the product in the embodiment;

Fig. 3 is the overall structural representation of mold in the embodiment;

Fig. 4 is the top view of movable mold in the embodiment;

Fig. 5 is a schematic structural diagram of the first side pumping assembly in the embodiment;

Fig. 6 is a schematic structural diagram of the second side pumping assembly in the embodiment;

Fig. 7 is the structural representation of the product on the movable mold core in the embodiment;

Fig. 8 is the structural representation of moving die core in the embodiment;

Fig. 9 is a schematic structural view of the moving insert in the embodiment;

Fig. 10 is a schematic structural view of the state of the moving insert and the thimble pushing the workpiece in the embodiment.

Reference signs: 1. lampshade; 2. left lampshade; 3. right lampshade; 4. first side; 5. second side; 6. first flange; 7. second flange; 8. first fixing hole ;9, the second fixed hole; 10, fixed film; 11, moving mold; 12, moving mold kernel; 121, fixed insert; 122, moving insert; 13, push plate; Pumping assembly; 151, the first insert; 152, the first power part; 153, the first fixed block; 16, the second side drawing assembly; 161, the second insert; 162, the second power part; 163, the second Fixed block; 17, guide rail; 18, push rod; 19, sliding groove; 20, first cylinder; 21, second cylinder; 22, first guide groove; 23, second guide groove.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in accompanying drawings 3, 4, and 10, the demoulding mechanism of the automobile lampshade mold includes a fixed mold 10 and a movable mold 11, and the movable mold 11 is provided with a movable mold core 12 for product molding and a push plate for ejecting products 13. The push plate 13 is provided with one end fixed on the push plate 13 and the other end touching the product surface. The thimbles 14 are evenly distributed on the lower side of the product flange and act on the flange. The left and right sides of the movable mold 11 are provided with a first side drawing assembly 15. With reference to the accompanying drawing 5, the first side drawing assembly 15 includes a first insert 151 matching the contour of the first side 4, and a driving first insert 151 The moving first power part 152, the first fixed block 153 fixed on the movable mold 11 and used to fix the first power part 152, wherein the contour of the first insert 151 conforms to the shape of the side of the product and is used for product molding; The front side of the movable mold 11 is provided with a second side drawing assembly 16. With reference to accompanying drawing 6, the second side drawing assembly 16 includes a second insert 161 matching the contour of the second side 5, driving the second insert 161 The moving second power part 162, the second fixed block 163 fixed on the movable mold 11 and used to fix the second power part 162, wherein the contour of the second insert 161 conforms to the shape of the side of the product and is used for product molding, The second insert 161 is also provided with a second cylinder 21 for forming the second fixing hole 9 .

Referring to accompanying drawing 7 and 8, movable die core 12 comprises fixed insert 121 and movable insert 122, and the outline of the upper surface of fixed insert 121 and movable insert 122 all conforms to the outline of product bottom surface, wherein, because there is hole on the product structure, so the first cylinder 20 is set on the second fixed insert 121 for molding; the fixed insert 121 is provided with a first guide groove 22 and a guide rail 17 is embedded thereon, and the moving insert 122 is provided with a second guide groove 23, and is slidably connected to the guide rail 17 through the second guide groove 23 to realize the relative movement between the moving insert 122 and the fixed insert 121; in conjunction with accompanying drawing 9, the push plate 13 is fixed with a push rod 18, and the push rod 18 is slidably connected to the sliding groove 19 at the bottom of the moving insert 122 at an end away from the push plate 13, the sliding groove 19 is arranged in a horizontal direction, and the push rod 18 can move back and forth in the sliding groove 19; The stability of the movement of the block 122 on the fixed insert 121, the first guide groove 22 and the second guide groove 23 are both T-shaped grooves, the guide rail 17 is an "I"-shaped guide rail 17, and the T-shaped groove and the "I" shape The guide rails 17 match each other. Wherein, referring to accompanying drawing 10, in order to avoid the problem that the mobile insert 122 is still attached to the product and cause the product to be unsuitable for removal, the guide rail 17 is inclined to the direction away from the second side drawing assembly 16, and its inclination angle a is 10°~ 15°, 10° is selected here.

The demoulding process of this embodiment is as follows: the first side drawing assembly 15, the second side drawing assembly 16, the fixed insert 121, the moving insert 122 and the fixed film 10 cores on the fixed mold together form the cavity of the molded product. When the product is demolded after molding, the movable mold 11 and the fixed film 10 are separated. At this time, the first side-drawing assembly 15 and the second side-drawing assembly 16 make room for lateral core-pulling; then, the push plate 13 moves upward at the same time Push the thimble 14 and the push rod 18, and the push rod 18 pushes the moving insert 122 to move along the guide rail 17, the moving insert 122 and the thimble 14 withstand the bottom and the flange of the product respectively and push the product upwards at the same time, at this time, the moving The insert 122 will move obliquely upwards along the inclined guide rail 17, that is, it will move backwards while moving upwards, and break away from the product surface, so that the product can be removed smoothly. When moving backward, the relative moving insert 122 will move forward to prevent jamming.

The above descriptions are only exemplary implementations of the present utility model, and are not intended to limit the protection scope of the present utility model, which is determined by the appended claims.

Claims (8)

1. A demoulding mechanism for an automobile lampshade mold, comprising a fixed mold (10) and a movable mold (11), the movable mold (11) is provided with a movable mold core (12) for product molding and a mold for ejecting the product The push plate (13) is provided with a thimble (14) whose one end is fixed on the push plate (13) and the other end touches the surface of the product. The left and right sides of the movable mold (11) A first side drawing assembly (15) is provided, and a second side drawing assembly (16) is provided on the front side of the movable mold (11), and the feature is that the moving mold core (12) includes a fixed insert (121) and a moving insert (122), the fixed insert (121) is provided with a guide rail (17), and the moving insert (122) is slidably connected to the guide rail (17), and the moving insert (122) A push rod (18) for driving the moving insert (122) is arranged between the push plate (13). 2. The demoulding mechanism for automobile lampshade molds according to claim 1, characterized in that: the guide rail (17) is arranged obliquely in a direction away from the second side drawing assembly (16), and the moving insert (122) The bottom is provided with a sliding groove (19) parallel to the bottom surface of the moving insert (122), and the push rod (18) is slidingly connected in the sliding groove (19), and the pushing rod (18) is away from the sliding groove ( 19) one end is fixed on the push pedal (13). 3. The demoulding mechanism of the automobile lampshade mold according to claim 2, characterized in that: the inclination angle of the guide rail (17) is 10°~20°. 4. The demoulding mechanism of the automobile lampshade mold according to claim 1, characterized in that: the first side drawing assembly (15) includes a first insert (151) matching the contour of the first side (4) , a first power part (152) driving the first insert (151) to move, and a first fixed block (153) fixed on the movable mold (11) and used for fixing the first power part (152). 5. The demoulding mechanism of the automobile lampshade mold according to claim 1, characterized in that: the second side drawing assembly (16) includes a second insert (161) matching the contour of the second side (5) , the second power part (162) that drives the second insert (161) to move, the second fixed block (163) that is fixed on the movable mold (11) and used to fix the second power part (162), the first The second insert (161) is provided with a second cylinder (21) for forming the second fixing hole (9). 6. The demoulding mechanism for automobile lampshade mold according to claim 1, characterized in that: the upper surface of the fixed insert (121) matches the contour of the bottom surface of the product and is provided with a first fixing hole ( 8) The first cylinder (20). 7. The demoulding mechanism for automobile lampshade mold according to claim 1, characterized in that: the fixed insert (121) is provided with a first guide groove (22), and the guide rail (17) is embedded in the first guide groove In the slot (22), the moving insert (122) is provided with a second guide groove (23), and the moving insert (122) realizes sliding through the cooperation of the second guide groove (23) and the guide rail (17) . 8. The demoulding mechanism for automobile lampshade mold according to claim 7, characterized in that: the first guide groove (22) and the second guide groove (23) are both T-shaped grooves, and the guide rail (17) is " I " font guide rail (17).