CN211917619U - Molding mold for automobile rear door sill trim - Google Patents

Abstract

The utility model discloses a molding die for an automobile rear door sill trim. An ejecting mechanism includes a primary ejecting mechanism for ejecting the reinforcing ribs on the inner surface of the automobile rear sill trim and a secondary ejecting mechanism for ejecting the entire molded product. mechanism; the primary ejection mechanism is located below the secondary ejection mechanism, and a locking device for preventing disengagement during mold clamping is provided between the primary ejection mechanism and the secondary ejection mechanism. By using the above molding die, the quality defect caused by the ejection force can be avoided through the die.

Description

Molding mold for automobile rear door sill trim

technical field

The utility model relates to the technical field of forming moulds, in particular to a forming mould for a rear door sill trim plate of an automobile.

Background technique

Car door sill trim, usually used to protect the door sill beam of the vehicle. The automobile door sill trim panel is usually made of plastic injection molding, the middle part is a concave cavity, and is installed on the sill beam through the snap structure on the top. In the prior art, most of the injection molding is performed by using a molding die. After the injection is completed, the ejecting mechanism in the molding die ejects the product. The existing forming mold has the following disadvantages:

Due to its long length, multiple reinforcing ribs on the inner surface, multiple snaps at the edges, and its size in the height direction is also large, the ejector mechanism acts on the ejector rod during ejection. The force is the same, that is to say, the ejection force of each part of the sill panel is the same, and because of its longer ejection stroke, different parts of the sill panel are subject to the ejection. Different reactions will occur under the applied force, and some weak parts will be deformed, resulting in quality defects of the molded products.

Utility model content

The technical problem to be solved by the utility model is to provide a molding die for the rear door sill trim panel of an automobile, which can avoid the quality defect caused by the ejecting force through the die.

In order to solve the above-mentioned technical problems, the utility model provides a molding die for a rear door sill trim panel of an automobile, which includes an upper die and a lower die. It is provided with a demoulding device and an ejecting mechanism; it is characterized in that: the forming mold is a mold with one mold and two molds, and the product cavity is two connected cavities; The upside-down demolding mechanism of the buckle in the plate, the ejecting mechanism includes a primary ejecting mechanism for ejecting the reinforcing ribs on the inner surface of the rear door sill trim of the automobile and a secondary ejecting mechanism for ejecting the entire molded product; The primary ejection mechanism is located below the secondary ejection mechanism, and a locking device is provided between the primary ejection mechanism and the secondary ejection mechanism to prevent disengagement during mold clamping.

The main gate in the forming mold is located between two product cavities, and a plurality of sections of auxiliary runners are arranged in the mold at the periphery of each product cavity and between the two product cavities, and each section of the auxiliary runner is poured through a branch. The runner is communicated with the product cavity, and each section of the auxiliary runner is communicated with the main runner.

The primary ejection mechanism includes a primary top plate with first lugs at all four corners; the secondary ejection mechanism includes a secondary top plate with a second top plate at all four corners. Two lugs; the second lugs are located above the first lugs; there are four locking devices, which are respectively located outside the first lugs and the second lugs.

The secondary ejection mechanism also includes a guide device, which includes a guide rod, a guide sleeve and a guide rod connecting head; the front end of the second lug has an open groove, and the inner side wall of the open groove is provided with a horizontal direction of the groove wall. The guide rod is fixedly connected to the lower end of the guide rod and clamped in the opening groove, and the outer circumferential wall of the guide rod connecting head is provided with a concave annular groove matched with the clip; the guide rod The upper end of the guide sleeve is slidably connected in the guide sleeve, and the guide sleeve is fixedly connected on the side wall of the lower mold core.

The locking device includes a connecting seat, a locking plate, a limiting plate and an electromagnet; a second groove is provided on the outer side wall of the second lug, and the upper end of the connecting seat is fixedly connected in the second groove; The upper end of the locking plate is hinged to the upper end of the connecting seat, the lower end of the locking plate is provided with a locking tongue; the outer side wall of the first lug is provided with a first groove, and the limiting plate is fixedly connected in the first groove , and the part of the limiting plate protruding from the outer side wall of the first lug is locked or disengaged from the lock tongue of the lower end of the locking plate; the electromagnet is horizontally arranged between the locking plate and the connecting seat, and one end of the electromagnet is located at the fixed It is connected to the side wall of the connecting seat and is electrically connected to the external power supply.

The upside down release mechanism includes an upside down inclined top, an inclined rod and a slider assembly, the side surface of the upside down inclined top is an upside down forming surface, the upper end of the inclined rod is connected with the upside down inclined top, and the lower end is connected with the slider assembly. The inclined rod is slidably connected in the lower mold assembly, and the slider assembly is installed in the lower mold assembly.

The slider assembly includes two pressing blocks, one connecting block, two sliding blocks and two rotating pins; the opposite side wall surface of each pressing block is provided with an inclined chute, and the two sliding blocks are respectively It is slidably connected in the chute of the two pressing blocks; the connecting block is located between the two sliding blocks, and the two sides of the connecting block are hinged with the sliding blocks through two rotating pins respectively, and the bottom of the inclined rod is inserted into the sliding block. The circumferential limit is carried out in the connection block and through the anti-rotation limit block.

The slider assembly also includes an upper limit bar and a lower limit bar for limiting the travel of the connecting block, the upper limit bar and the lower limit bar are respectively arranged horizontally on both ends of the two pressing blocks, and the two ends of the upper limit bar are respectively fixed. It is connected at the end faces of the two pressing blocks, and the two ends of the lower limit bar are respectively fixedly connected at the end faces of the two pressing blocks.

After adopting the above structure, compared with the prior art, the present invention has the following advantages:

1) Due to the use of the secondary ejection mechanism, the oil cylinder drives the secondary top plate to move up during operation, and the secondary top plate drives the primary top plate to move up together under the action of the locking device. After moving for a certain distance, the locking device is unlocked and the second The ejector mechanism is separated from the primary top plate, so the secondary top plate continues to move upward until the product is completely ejected; in this way, the primary ejection stroke and the secondary ejection stroke can be set according to the actual situation. The structure of the reinforcing rib is ejected, and the structure without the reinforcing rib is ejected by the secondary ejection mechanism, so that the stress of each part of the product is treated differently, and the quality of the product after ejection is guaranteed;

2) The molding die with one mold and two exits greatly improves the production efficiency; in addition, multiple auxiliary runners are set around the periphery of the product cavity, as well as branch runners that communicate with the product cavity, so that the product can be melted quickly during injection. Reach all parts of the product cavity, so that the filling rate of the melt in the product cavity is consistent, ensuring the quality of the molded product;

3) In the inverted mold release mechanism, the combination of the sliders at the bottom makes the up and down movement of the mold opening into a horizontal left and right movement. When the mold is opened, the inverted mold release mechanism is actuated first, and the inverted tilt top is placed on the slider assembly. After the product is released under the drive of the machine, the action of the large inclined top demoulding mechanism is carried out, thereby ensuring that the demoulding of each part of the product will not interfere.

Description of drawings

FIG. 1 is a schematic structural diagram of the molding die for the rear door sill trim panel of the utility model.

FIG. 2 is a schematic structural diagram of the molding die for the rear door sill trim of the utility model.

FIG. 3 is a schematic structural diagram of a lower mold core in the present invention.

FIG. 4 is a schematic view of the structure of the upper mold core in the present invention.

FIG. 5 is a schematic structural diagram of an upside-down mold release mechanism in the present invention.

FIG. 6 is an enlarged schematic structural diagram of the slider assembly in FIG. 5 .

FIG. 7 is a schematic structural diagram of the locking device in the present invention.

Among them: 1. Lower die core; 2. Main gate; 3. Auxiliary runner; 4. Branch runner; , connecting block; 10, rotating pin; 11, upper limit bar; 12, lower limit bar; 13, chute; 14, anti-rotation limit block; 15, upper die core; 16, second lug; 17, first lug; 18, secondary top plate; 19, primary top plate; 20, guide sleeve; 21, guide rod; 22, clip; 23, open groove; 24, annular groove; 25, guide rod connector; 26 27, the first groove; 28, the locking plate; 29, the connecting seat; 30, the electromagnet; 31, the lock tongue; 32, the limit plate.

Detailed ways

The present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

It can be seen from the schematic structural diagrams of the molding die for the rear door sill trim of the present utility model shown in FIGS. 1 to 7 that the molding die for the rear sill trim of the automobile includes an upper mold and a lower mold. The product cavity is formed, and a demolding device and an ejector mechanism are arranged between the upper mold and the lower mold; it is characterized in that: the forming mold is a mold with one mold and two molds, and the product cavity is two connected cavities; The mold device includes a plurality of inverted mold release mechanisms for releasing the buckles in the rear door sill trim panel of the automobile, and the ejector mechanism includes a one-time eject mechanism for ejecting the reinforcing ribs on the inner surface of the rear door sill trim panel of the automobile and an ejector A secondary ejection mechanism for ejecting the entire molded product; the primary ejection mechanism is located below the secondary ejection mechanism, and a locking device is provided between the primary ejection mechanism and the secondary ejection mechanism to prevent disengagement when the mold is closed.

The main gate 2 in the forming mold is located between two product cavities, and there are multiple sections of auxiliary runners 3 in the mold at the periphery of each product cavity and between the two product cavities, and each section of auxiliary runners 3 The branch runner 4 communicates with the product cavity, and each section of the auxiliary runner 3 communicates with the main runner.

The primary ejection mechanism includes a primary top plate 19, and the primary top plate 19 has first lugs 17 at four corners; the secondary ejection mechanism includes a secondary top plate 18, which has four There are second lugs 16 at the corners; the second lugs 16 are located above the first lugs 17 ; there are four locking devices, which are located on the outer sides of the first lugs 17 and the second lugs 16 respectively.

The secondary ejection mechanism also includes a guide device, which includes a guide rod 21, a guide sleeve 20 and a guide rod connecting head 25; the front end of the second lug 16 has an open groove 23, and the upper edge of the inner side wall of the open groove 23 The groove wall is provided with a clamping strip 22 in the horizontal direction. The guide rod connecting head 25 is fixedly connected to the lower end of the guiding rod 21 and clamped in the opening groove 23. The outer circumferential wall of the guiding rod connecting head is provided with a clamping strip 22. A concave annular groove 24 ; the upper end of the guide rod 21 is slidably connected in the guide sleeve 20 , and the guide sleeve 20 is fixedly connected to the side wall of the lower mold core 1 .

The locking device includes a connecting seat 29, a locking plate 28, a limiting plate 32 and an electromagnet 30; the outer side wall of the second lug 16 is provided with a second groove 26, and the upper end of the connecting seat 29 is fixedly connected to the In the second groove 26; the upper end of the locking plate 28 is hinged to the upper end of the connecting seat 29, the lower end of the locking plate 28 is provided with a locking tongue 31; the outer side wall of the first lug 17 is provided with a first recess The groove 27, the limit plate 32 is fixedly connected in the first groove 27, and the part of the limit plate 32 protruding from the outer side wall of the first lug 17 is locked or disengaged with the lock tongue 31 at the lower end of the locking plate 28; The electromagnet 30 is horizontally arranged between the locking plate 28 and the connecting base 29. One end of the electromagnet 30 is fixedly connected to the side wall of the connecting base 29 and is electrically connected to the external power supply, and the other end is connected to the side of the locking plate 28 when energized. The walls are tightened and disengaged from the side walls of the locking plate 28 when de-energized.

The upside down release mechanism includes an upside down sloping top 5, an inclined rod 6 and a slider assembly. The side surface of the upside down inclined top 5 is an upside down forming surface, and the upper end of the inclined rod 6 is connected with the upside down inclined top 5. The lower end is connected with the slider assembly, the inclined rod 6 is slidably connected in the lower mold assembly, and the slider assembly is installed in the lower mold assembly.

The slider assembly includes two pressing blocks 7, a connecting block 9, two sliding blocks 8 and two rotating pins 10; each of the pressing blocks 7 is provided with an inclined chute 13 on the opposite side wall surface. , the two sliding blocks 8 are respectively slidably connected in the chute 13 of the two pressing blocks 7; the connecting block 9 is located between the two sliding blocks 8, and the two sides of the connecting block 9 are respectively connected to the The sliding block 8 is hinged, and the bottom of the inclined rod 6 is inserted into the connecting block 9 and is circumferentially limited by the rotation stop limit block 14 .

The slider assembly also includes an upper limit bar 11 and a lower limit bar 12 for limiting the stroke of the connecting block 9. The upper limit bar 11 and the lower limit bar 12 are horizontally arranged on both ends of the two pressing blocks 7 respectively. Both ends of the bar 11 are fixedly connected to the end faces of the two pressing blocks 7 respectively, and both ends of the lower limit bar 12 are fixedly connected to the end faces of the two pressing blocks 7 respectively.

In addition, the locking device may also have other structures, which are not shown in the drawings. The specific structure is: the locking device includes a connecting seat, a locking plate, a limit plate and an electric push rod; the outer side wall of the second lug There is a second groove on it, and the upper end of the connecting seat is fixedly connected in the second groove; the upper end of the locking plate is hinged on the upper end of the connecting seat, and the lower end of the locking plate is provided with a lock tongue; the first lug There is a first groove on the outer side wall of the lock plate, the limit plate is fixedly connected in the first groove, and the part of the limit plate protruding from the outer side wall of the first lug is locked or disengaged from the lock tongue of the lower end of the locking plate The electric push rod is arranged horizontally, its fixed end is connected to the first lug, and its movable end is connected to the locking plate, and the electric push rod is electrically connected to an external power source and controlled by the controller of the injection molding machine. When the mold is closed, the electric push rod is shortened to the shortest length, so that the lock tongue and the limit plate are locked. When the first ejection is performed, after the secondary top plate drives the primary top plate to move to a certain stroke, the electric push rod is energized, and its movable end is pushed outward, driving the lower end of the locking plate away from the direction of the mold, until the lock tongue and the limit plate are completely disengaged After that, the electric push rod stops moving; at this time, the second ejection mechanism acts to eject the product. When the mold is closed, the action is reversed.

The above descriptions are only examples of preferred implementations of the present invention, which should not limit the scope of the rights of the present invention. For those skilled in the art, whoever uses the technical solutions and technical ideas of the present invention to make Various other corresponding changes should fall within the protection scope of the claims of the present invention.

Claims (8)

1. A forming die of a rear doorsill trim panel of an automobile comprises an upper die and a lower die, wherein a product cavity is formed by the upper die and the lower die after the upper die and the lower die are assembled, and a demoulding device and an ejection mechanism are arranged between the upper die and the lower die; the method is characterized in that: the forming die is a die with one die and two dies, and the product die cavities are two connected die cavities; the demolding device comprises a plurality of back-off demolding mechanisms for demolding the buckles in the rear doorsill trim panel of the automobile, and each ejection mechanism comprises a primary ejection mechanism for ejecting reinforcing ribs on the inner surface of the rear doorsill trim panel of the automobile and a secondary ejection mechanism for ejecting the whole molded product; the primary ejection mechanism is positioned below the secondary ejection mechanism, and a locking device for preventing disengagement during die assembly is arranged between the primary ejection mechanism and the secondary ejection mechanism.

2. The molding die for a rear rocker trim panel for an automobile according to claim 1, wherein: the main sprue (2) in the forming die is located between two product cavities, a multi-section auxiliary pouring gate (3) is arranged at the periphery of each product cavity and in the die between the two product cavities, each section of auxiliary pouring gate (3) is communicated with the product cavities through a branch pouring gate (4), and each section of auxiliary pouring gate (3) is communicated with the main pouring gate.

3. The molding die for a rear rocker trim panel for an automobile according to claim 1, wherein: the primary ejection mechanism comprises a primary ejection plate (19), the primary ejection plate (19) having first lugs (17) at four corners; the secondary ejection mechanism comprises a secondary ejection plate (18), the secondary ejection plate (18) having second lugs (16) at four corners; the second lug (16) is located above the first lug (17); the locking devices are four and are respectively positioned at the outer sides of the first lug (17) and the second lug (16).

4. The molding die for a rear rocker trim panel for an automobile according to claim 3, wherein: the secondary ejection mechanism also comprises a guide device, and the guide device comprises a guide rod (21), a guide sleeve (20) and a guide rod connector (25); the front end of the second lug (16) is provided with an open slot (23), the inner side wall of the open slot (23) is provided with a clamping strip (22) along the horizontal direction of the slot wall, a guide rod connector (25) is fixedly connected to the lower end of the guide rod (21) and clamped in the open slot (23), and the outer circumferential wall of the guide rod connector is provided with an inward annular groove (24) matched with the clamping strip (22); the upper end of the guide rod (21) is connected in the guide sleeve (20) in a sliding manner, and the guide sleeve (20) is fixedly connected to the side wall of the lower die mold core (1).

5. The molding die for a rear rocker trim panel for an automobile according to claim 3, wherein: the locking device comprises a connecting seat (29), a locking plate (28), a limiting plate (32) and an electromagnet (30); a second groove (26) is formed in the outer side wall of the second lug (16), and the upper end of the connecting seat (29) is fixedly connected into the second groove (26); the upper end of the locking plate (28) is hinged to the upper end of the connecting seat (29), and the lower end of the locking plate (28) is provided with a bolt (31); a first groove (27) is formed in the outer side wall of the first lug (17), a limiting plate (32) is fixedly connected in the first groove (27), and the part of the limiting plate (32) extending out of the outer side wall of the first lug (17) is locked or unlocked with a locking tongue (31) at the lower end of the locking plate (28); the electromagnet (30) is horizontally arranged between the locking plate (28) and the connecting seat (29), one end of the electromagnet (30) is fixedly connected to the side wall of the connecting seat (29) and is electrically connected with an external power supply, and the other end of the electromagnet is tightly sucked with the side wall of the locking plate (28) when the electromagnet is electrified and is separated from the side wall of the locking plate (28) when the electromagnet is not electrified.

6. The molding die for a rear rocker trim panel for an automobile according to claim 1, wherein: the back-off demoulding mechanism comprises a back-off inclined top (5), an inclined rod (6) and a sliding block assembly, wherein the side surface of the back-off inclined top (5) is a back-off forming surface, the upper end of the inclined rod (6) is connected with the back-off inclined top (5), the lower end of the inclined rod is connected with the sliding block assembly, the inclined rod (6) is connected in the lower die assembly in a sliding manner, and the sliding block assembly is installed in the lower die assembly.

7. The molding die for a rear rocker trim panel for an automobile according to claim 6, wherein: the sliding block component comprises two pressing blocks (7), a connecting block (9), two sliding blocks (8) and two rotating pins (10); an inclined sliding groove (13) is formed in the wall surface of one side, opposite to each pressing block (7), of each pressing block (7), and the two sliding blocks (8) are connected in the sliding grooves (13) of the two pressing blocks (7) in a sliding mode respectively; the connecting block (9) is located between the two sliding blocks (8), two sides of the connecting block (9) are hinged to the sliding blocks (8) through the two rotating pins (10), and the bottom of the inclined rod (6) is inserted into the connecting block (9) and is circumferentially limited through the rotation stopping limiting block (14).

8. The molding die for a rear rocker trim panel for an automobile according to claim 7, wherein: the sliding block assembly further comprises an upper limiting strip (11) and a lower limiting strip (12) which are used for limiting the stroke of the connecting block (9), the upper limiting strip (11) and the lower limiting strip (12) are horizontally arranged on two end faces of the two pressing blocks (7) respectively, two ends of the upper limiting strip (11) are fixedly connected to the end faces of the two pressing blocks (7) respectively, and two ends of the lower limiting strip (12) are fixedly connected to the end faces of the two pressing blocks (7) respectively.

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