Injection mold with pitched roof mechanism

Abstract

The utility model discloses an injection mold with a pitched roof mechanism, which relates to the technical field of injection molds and comprises a fixed mold, a movable mold is slidably connected to the surface of the fixed mold, an opening is formed in the front surface of the fixed mold, a covering component is arranged on the front surface of the fixed mold, and a pitched roof component is arranged in the fixed mold; the covering assembly comprises a covering plate and an anti-falling assembly, the covering plate is slidably arranged on the inner wall of the opening, and two vent grooves are formed in the surface of the covering plate; the mold has the beneficial effects that by pushing the two L-shaped clamping blocks, the two L-shaped clamping blocks are enabled to be separated from the two clamping seats, the fixation of the clamping seats and the L-shaped clamping blocks on the transverse plate is relieved, a hand stretches into the groove and pulls the pull-assisting block in the direction far away from the fixed mold, the pull-assisting block drives the transverse plate to move, the transverse plate drives the covering plate to move, and the covering plate is enabled to be separated from the fixed mold; and the driving motor in the fixed mold can be conveniently maintained and overhauled.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to an injection mold with an inclined ejector mechanism, and belongs to the technical field of injection molds. Background Art

[0002] Injection molding is a method for producing industrial products. Injection molding methods mainly include injection molding and die casting. Injection molding is a method of using thermoplastics or thermosetting materials to make plastic products of various shapes using plastic molding molds. When injection molding products with complex shapes, a sloping top structure is required for demoulding.

[0003] Among them, the "injection mold with a tilted ejector mechanism" disclosed in the application number "CN202120825805.5" has "a movable mold arranged directly above the fixed mold, and a mold cavity is opened on the upper side of the fixed mold, a pouring gate is opened at the center position inside the movable mold, and two exhaust ducts are symmetrically opened at both sides of the pouring gate inside the movable mold, and two ejector plate slide grooves are symmetrically opened at both ends of the mold cavity. The utility model has a novel design and ingenious structure. The driving cylinder pushes the pushing plate to move up, and the pushing plate pushes the two sliding shafts to move up. The two sliding shafts respectively push the two fixed plates and the two stripping ejector plates into the inner side of the mold cavity, and the molded product is immediately ejected from the mold cavity to achieve rapid demolding and prevent the finished product from being stuck inside the mold cavity. The thrust can be buffered by the buffer spring to prevent the two stripping ejector plates from popping out instantly and causing impact on the finished product, thereby causing damage to the product.

[0004] However, the above-mentioned injection mold with a tilting ejector mechanism still has the following defects: the fixed mold is an integrated structure, which makes it inconvenient to maintain and overhaul the driving cylinder inside the fixed mold. Utility Model Content

[0005] The utility model aims to provide an injection mold with a tilting ejector mechanism to solve the problem that the fixed mold of the existing injection mold with a tilting ejector mechanism is an integrated structure, which makes it inconvenient to maintain and overhaul the driving cylinder inside the fixed mold.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with a tilted ejector mechanism, comprising a fixed mold, the surface of the fixed mold is slidably connected to the movable mold, the front of the fixed mold is provided with an opening, the front of the fixed mold is provided with a covering assembly, and the interior of the fixed mold is provided with a tilted ejector assembly; the covering assembly comprises a covering plate and an anti-slip assembly, the covering plate is slidably arranged on the inner wall of the opening, the surface of the covering plate is provided with two ventilation grooves, and the inner walls of the two ventilation grooves are provided with dustproof nets; the anti-slip assembly comprises a horizontal plate, the horizontal plate is arranged on the front of the covering plate, the surface of the horizontal plate is respectively provided with a groove and two slide grooves, the inner walls of the two slide grooves are both slidably connected with L-shaped blocks, two anti-slip springs are provided between the two L-shaped blocks and the corresponding slide grooves, and the surfaces of the two L-shaped blocks are both slidably connected with a card seat.

[0007] As a preferred technical solution of the utility model, the back sides of the two L-shaped blocks are set as inclined surfaces, and two sliding holes are opened on one side of the two L-shaped blocks. The inner walls of the four sliding holes are slidably connected with sliding rods, wherein one end of two of the sliding rods are connected to the inner wall of one side of one of the sliding grooves, and one end of the other two sliding rods are connected to the inner wall of the other side of the sliding grooves.

[0008] As a preferred technical solution of the utility model, the back sides of the two clamping seats are connected to the front side of the fixed mold, the four anti-slip springs are respectively sleeved on the outside of the four sliding rods, and the inner wall of the groove is provided with a pulling block.

[0009] As a preferred technical solution of the utility model, the inclined top assembly includes a transmission screw, a driving motor and four reversing cylinders. The transmission screw is rotatably arranged on the inner wall of the fixed mold through a bearing. The surface of the transmission screw is threadedly connected to an I-shaped plate that slides with the inner wall of the fixed mold through a screw nut. The four corners of the bottom end of the I-shaped plate are provided with U-shaped rods. The driving motor is arranged on the inner wall of the bottom end of the fixed mold. The driving motor is a forward and reverse motor. The transmission shaft of the driving motor is provided with a first gear. The back side of the first gear is meshedly connected with a second gear connected to the surface of the transmission screw. The four reversing cylinders are all arranged on the inner wall of the top of the fixed mold.

[0010] As a preferred technical solution of the utility model, the inner walls of the four reversing cylinders are slidably connected with the first piston disc and the second piston disc, one end of the four first piston discs is respectively connected to one end of four U-shaped rods, hydraulic oil is filled between the four first piston discs and the corresponding second piston discs, one end of the four second piston discs is provided with an inclined push rod, and one end of every two corresponding inclined push rods is provided with an inclined top plate.

[0011] As a preferred technical solution of the utility model, the surfaces of the four inclined push rods are provided with reset rings, and reset springs are provided between the four reset rings and the corresponding reversing cylinders. The four reset springs are respectively sleeved on the outside of the four inclined push rods, one end of the four inclined push rods respectively penetrates one end of the four reversing cylinders, one end of the four U-shaped rods respectively penetrates the other end of the four reversing cylinders, and the contact parts of the four U-shaped rods, the four inclined push rods and the two inclined top plates are all slidably connected with the fixed mold.

[0012] As a preferred technical solution of the utility model, the surface of the movable mold is respectively provided with pouring holes and exhaust holes, two positioning seats are provided on both sides of the movable mold, the surfaces of the four positioning seats are provided with through holes, the inner walls of the four through holes are slidably connected with positioning rods, and one end of the four positioning rods is provided with a support seat connected to the surface of the fixed mold.

[0013] Compared with the related art, the injection mold with a tilting ejector mechanism provided by the utility model has the following beneficial effects:

[0014] 1. Push the two L-shaped blocks to separate them from the two holders, release the holders and L-shaped blocks from fixing the horizontal plate, put your hand into the groove and pull the auxiliary block away from the fixed mold. The auxiliary block will drive the horizontal plate to move, and the horizontal plate will drive the cover plate to move, so that the cover plate is separated from the fixed mold, which is convenient for maintenance and repair of the drive motor inside the fixed mold;

[0015] 2. When installing the cover plate, the holder pushes the L-shaped block through the inclined surface, causing the L-shaped block to retract into the slide groove. Therefore, when installing the cover plate, both hands used to push the L-shaped block can be freed up, which is convenient for one-person operation. The two holders resist the two L-shaped blocks pushed by the four anti-drop springs to complete the fixation of the cross plate and the cover plate. Compared with the method of fixing the cover plate with bolts, there is no need to screw multiple bolts during disassembly, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at B;

[0020] Figure 5 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the anti-slip assembly of the utility model from above;

[0022] Figure 7 The figure is a schematic diagram of the explosion structure of the L-shaped clamping block of the utility model.

[0023] In the figure: 1, fixed mold; 2, movable mold; 3, cover assembly; 301, cover plate; 302, ventilation groove; 303, dust screen; 4, anti-slip assembly; 401, cross plate; 402, groove; 403, slide groove; 404, L-shaped block; 405, anti-slip spring; 406, card seat; 407, slide hole; 408, slide rod; 409, pull-assisting block; 5, inclined top assembly; 501, transmission screw rod; 502, drive motor machine; 503, reversing cylinder; 504, I-type plate; 505, U-shaped rod; 506, first gear; 507, second gear; 508, first piston disc; 509, second piston disc; 510, hydraulic oil; 511, inclined push rod; 512, inclined top plate; 513, reset ring; 514, reset spring; 6, pouring hole; 7, exhaust hole; 8, positioning seat; 9, through hole; 10, positioning rod; 11, support seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-7 The utility model provides an injection mold with a tilting mechanism, comprising a fixed mold 1, a movable mold 2 is slidably connected to the surface of the fixed mold 1, an opening is opened on the front of the fixed mold 1, a covering component 3 is provided on the front of the fixed mold 1, and a tilting component 5 is provided inside the fixed mold 1;

[0027] The surfaces of the movable mold 2 are respectively provided with pouring holes 6 and exhaust holes 7, two positioning seats 8 are fixedly provided on both sides of the movable mold 2, through holes 9 are provided on the surfaces of the four positioning seats 8, and positioning rods 10 are slidably connected to the inner walls of the four through holes 9. One end of the four positioning rods 10 is fixedly provided with a support seat 11 connected to the surface of the fixed mold 1, and the thermoplastic plastic is injected into the cavity between the movable mold 2 and the fixed mold 1 through the pouring holes 6, and the exhaust holes 7 discharge the gas squeezed out by the thermoplastic plastic. When the mold needs to be closed, the movable mold 2 is moved, and the movable mold 2 drives the positioning seat 8 to move, so that the positioning seat 8 slides downward along the surface of the positioning rod 10 until the movable mold 2 fits the fixed mold 1 to complete the mold closing, so the positioning rod 10 cooperates with the through holes 9 to achieve the alignment of the movable mold 2 and the fixed mold 1;

[0028] The cover assembly 3 includes a cover plate 301 and an anti-slip assembly 4. The cover plate 301 is slidably arranged on the inner wall of the opening. Two ventilation grooves 302 are provided on the surface of the cover plate 301. The inner walls of the two ventilation grooves 302 are fixed with dustproof nets 303.

[0029] Specifically, the opening is sealed by the cover plate 301, thereby covering the inclined top component 5 inside the fixed mold 1. The cover plate 301 is fixed by the anti-detachment component 4 and can be disassembled to facilitate maintenance and inspection of the drive motor 502 inside the fixed mold 1. The ventilation groove 302 facilitates the exchange of gas between the inside of the fixed mold 1 and the outside world, which is beneficial to the heat dissipation of the drive motor 502. The dustproof net 303 prevents dust from accumulating on the inner wall of the fixed mold 1.

[0030] Embodiment 2:

[0031] The anti-slip assembly 4 includes a horizontal plate 401, which is fixedly arranged on the front side of the cover plate 301. A groove 402 and two slide grooves 403 are respectively provided on the surface of the horizontal plate 401. The inner walls of the two slide grooves 403 are slidably connected with L-shaped clamping blocks 404. Two anti-slip springs 405 are fixedly arranged between the two L-shaped clamping blocks 404 and the corresponding slide grooves 403. The surfaces of the two L-shaped clamping blocks 404 are slidably connected with clamping seats 406.

[0032] The backs of the two L-shaped blocks 404 are both set as inclined surfaces, and two sliding holes 407 are provided on one side of the two L-shaped blocks 404. The inner walls of the four sliding holes 407 are slidably connected with sliding rods 408, wherein one end of the two sliding rods 408 is fixedly connected to the inner wall of one side of one of the sliding grooves 403, and one end of the other two sliding rods 408 is fixedly connected to the inner wall of the other side of the sliding groove 403. The L-shaped block 404 is pushed by the surface of the card seat 406 through the inclined surface, so that the L-shaped block 404 is retracted into the interior of the sliding groove 403. Therefore, when installing the cover plate 301, both hands used to push the L-shaped block 404 can be freed up, which is convenient for single-person operation;

[0033] The backs of the two clamping seats 406 are fixedly connected to the front of the fixed mold 1, and the four anti-slip springs 405 are respectively sleeved on the outside of the four sliding rods 408. The inner wall of the groove 402 is fixedly provided with a pull-assisting block 409, which facilitates pulling the horizontal plate 401 and the cover plate 301 away from the fixed mold 1. The sliding rod 408 limits the bending degree of the anti-slip spring 405 when it is compressed to avoid damage due to excessive bending.

[0034] Specifically, the two clamping seats 406 use their inner walls to resist the two L-shaped clamping blocks 404 pushed by the four anti-detachment springs 405, so as to fix the cross plate 401 and the cover plate 301. When the cover plate 301 needs to be removed, the two L-shaped clamping blocks 404 are first pushed, and the two L-shaped clamping blocks 404 are moved in the direction close to the auxiliary pull block 409. The two L-shaped clamping blocks 404 will compress the four anti-detachment springs 405, and the two L-shaped clamping blocks 404 will be separated from the two clamping seats 406, releasing the clamping seats 406 and The L-shaped clamping block 404 fixes the horizontal plate 401, and then put your hand into the groove 402 and pull the auxiliary pulling block 409 in the direction away from the fixed mold 1. The auxiliary pulling block 409 will drive the horizontal plate 401 to move, and the horizontal plate 401 will drive the cover plate 301 to move, so that the cover plate 301 is separated from the fixed mold 1, revealing the opening of the fixed mold 1 for maintenance and inspection of the drive motor 502. Compared with the method of fixing the cover plate 301 with bolts, the anti-detachment component 4 does not need to tighten the bolts during disassembly, saving time and effort.

[0035] Embodiment 3:

[0036] The inclined top assembly 5 includes a transmission screw 501, a driving motor 502 and four reversing cylinders 503. The transmission screw 501 is rotatably arranged on the inner wall of the fixed mold 1 through a bearing. The surface of the transmission screw 501 is threadedly connected with an I-shaped plate 504 that slides with the inner wall of the fixed mold 1 through a screw nut. The four corners of the bottom end of the I-shaped plate 504 are fixedly provided with U-shaped rods 505. The driving motor 502 is fixedly arranged on the inner wall of the bottom end of the fixed mold 1. The driving motor 502 is a forward and reverse motor. The transmission shaft of the driving motor 502 is fixedly provided with a first gear 506. The back side of the first gear 506 is meshedly connected with a second gear 507 that is fixedly connected with the surface of the transmission screw 501. The four reversing cylinders 503 are all fixedly arranged on the inner wall of the top of the fixed mold 1.

[0037] The inner walls of the four reversing cylinders 503 are slidably connected with the first piston disc 508 and the second piston disc 509, one end of the four first piston discs 508 is fixedly connected to one end of the four U-shaped rods 505 respectively, and the four first piston discs 508 and the corresponding second piston discs 509 are filled with hydraulic oil 510, one end of the four second piston discs 509 is fixedly provided with an inclined push rod 511, and one end of every two corresponding inclined push rods 511 is fixedly provided with an inclined top plate 512, and the U-shaped rod 505 will push the second piston disc 509 to move through the first piston disc 508 and the hydraulic oil 510, and the thrust direction of the U-shaped rod 505 is changed by the hydraulic oil 510 and the bent reversing cylinder 503, so that the inclined push rod 511 and the inclined top plate 512 slide obliquely upward, and the inclined top plate 512 ejects the plastic product to achieve demoulding;

[0038] The surfaces of the four inclined push rods 511 are fixed with reset rings 513, and reset springs 514 are fixed between the four reset rings 513 and the corresponding reversing cylinders 503. The four reset springs 514 are respectively sleeved on the outside of the four inclined push rods 511, and one end of the four inclined push rods 511 passes through one end of the four reversing cylinders 503 respectively, and one end of the four U-shaped rods 505 passes through the other end of the four reversing cylinders 503 respectively. The contact parts of the four U-shaped rods 505, the four inclined push rods 511 and the two inclined ejector plates 512 and the fixed mold 1 are all slidably connected. After the U-shaped rod 505 moves upward, the inclined ejector plate 512 will eject the plastic product. The inclined push rod 511 compresses the reset spring 514 through the reset ring 513. After the U-shaped rod 505 moves downward, the reset spring 514 will extend and push the reset ring 513, the inclined push rod 511 and the second piston disc 509 to move, so as to prevent the second piston disc 509 from being separated from the hydraulic oil 510, thereby ensuring the ejection effect next time.

[0039] Specifically, the drive motor 502 is started, and the drive motor 502 drives the transmission screw 501 to rotate through the first gear 506 and the second gear 507, and the transmission screw 501 drives the I-shaped plate 504 to slide upward, and the I-shaped plate 504 will drive the four U-shaped rods 505 to move upward, and the four U-shaped rods 505 push the second piston disc 509 to move through the first piston disc 508 and the hydraulic oil 510, so that the second piston disc 509 pushes the four oblique push rods 511, and the curved reversing cylinder 503 cooperates with the hydraulic oil 510 to change the thrust direction of the U-shaped rod 505, so that the four oblique push rods 511 and the four oblique ejector plates 512 slide obliquely upward, and the four oblique ejector plates 512 eject the plastic products to achieve demolding. The drive motor 502 is used as the power to eject the plastic products obliquely upward. Compared with the existing method of using the drive cylinder as the power, there is no need to set the electrical appliance in the middle of the fixed mold 1, so that the position of the electrical appliance is closer to the opening of the fixed mold 1, which is convenient for maintenance and inspection.

[0040] When in use, push the two L-shaped blocks 404, and both of them move toward the direction close to the auxiliary pull block 409. The two L-shaped blocks 404 will compress the four anti-dropping springs 405, and the two L-shaped blocks 404 will be separated from the two clamping seats 406, releasing the clamping seats 406 and the L-shaped blocks 404 from fixing the cross plate 401. Then, put your hand into the groove 402 and pull the auxiliary pull block 409 in the direction away from the fixed mold 1. The auxiliary pull block 409 will drive the cross plate 401 to move, and the cross plate 401 will drive the cover plate 301 to move, so that the cover plate 301 is separated from the fixed mold 1, which is convenient for maintenance and repair of the drive motor 502 inside the fixed mold 1.

[0041] It should also be added that when installing the cover plate 301, the L-shaped block 404 is moved in the direction close to the fixed mold 1, and the holder 406 pushes the L-shaped block 404 through the inclined surface, causing the L-shaped block 404 to retract into the slide groove 403. Therefore, when installing the cover plate 301, both hands can be freed up for pushing the L-shaped block 404, which is convenient for single-person operation. After that, the two holders 406 use their own inner walls to resist the two L-shaped blocks 404 pushed by the four anti-detachment springs 405, thereby completing the fixation of the cross plate 401 and the cover plate 301. Compared with the method of fixing the cover plate 301 with bolts, the anti-detachment component 4 does not need to tighten multiple bolts during disassembly, saving time and effort.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a tilting mechanism, comprising a fixed mold (1), It is characterized in that The surface of the fixed mold (1) is slidably connected to the movable mold (2), the front of the fixed mold (1) is provided with an opening, the front of the fixed mold (1) is provided with a covering component (3), and the interior of the fixed mold (1) is provided with a tilting top component (5); The covering assembly (3) comprises a covering plate (301) and an anti-slip assembly (4); the covering plate (301) is slidably arranged on the inner wall of the opening; two ventilation grooves (302) are provided on the surface of the covering plate (301); and dustproof nets (303) are provided on the inner walls of the two ventilation grooves (302); The anti-slip assembly (4) comprises a transverse plate (401), the transverse plate (401) being arranged on the front side of the cover plate (301), the surface of the transverse plate (401) being respectively provided with a groove (402) and two slide grooves (403), the inner walls of the two slide grooves (403) being slidably connected with an L-shaped clamping block (404), two anti-slipping springs (405) being arranged between the two L-shaped clamping blocks (404) and the corresponding slide grooves (403), and the surfaces of the two L-shaped clamping blocks (404) being slidably connected with a clamping seat (406).

2. An injection mold with a tilting ejector mechanism according to claim 1, Features: The back sides of the two L-shaped blocks (404) are both arranged as inclined surfaces, and two sliding holes (407) are respectively provided on one side of the two L-shaped blocks (404). The inner walls of the four sliding holes (407) are slidably connected with sliding rods (408), wherein one end of two of the sliding rods (408) are respectively connected to the inner wall of one side of one of the sliding grooves (403), and one end of the other two of the sliding rods (408) are respectively connected to the inner wall of one side of the other sliding groove (403).

3. An injection mold with a tilting ejector mechanism according to claim 2, Features: The backs of the two clamping seats (406) are connected to the front of the fixed mold (1), the four anti-drop springs (405) are respectively sleeved on the outside of the four sliding rods (408), and the inner wall of the groove (402) is provided with a pulling block (409).

4. The injection mold with a tilting ejector mechanism according to claim 1, Features: The inclined top assembly (5) comprises a transmission screw (501), a driving motor (502) and four reversing cylinders (503); the transmission screw (501) is rotatably arranged on the inner wall of the fixed mold (1) via a bearing; the surface of the transmission screw (501) is threadedly connected to an I-shaped plate (504) that slides with the inner wall of the fixed mold (1) via a screw nut; four corners of the bottom end of the I-shaped plate (504) are each provided with a U-shaped rod (505); the driving motor (502) is arranged on the inner wall of the bottom end of the fixed mold (1); the driving motor (502) is a forward and reverse motor; a transmission shaft of the driving motor (502) is provided with a first gear (506); the back side of the first gear (506) is meshingly connected to a second gear (507) that is connected to the surface of the transmission screw (501); and the four reversing cylinders (503) are each arranged on the inner wall of the top of the fixed mold (1).

5. An injection mold with a tilting ejector mechanism according to claim 4, Features: The inner walls of the four reversing cylinders (503) are slidably connected with a first piston disc (508) and a second piston disc (509); one end of the four first piston discs (508) is respectively connected to one end of four U-shaped rods (505); hydraulic oil (510) is filled between the four first piston discs (508) and the corresponding second piston discs (509); one end of the four second piston discs (509) is provided with an inclined push rod (511); and one end of every two corresponding inclined push rods (511) is provided with an inclined top plate (512).

6. The injection mold with a tilting ejector mechanism according to claim 5, Features: A reset ring (513) is provided on the surface of the four inclined push rods (511), and a reset spring (514) is provided between the four reset rings (513) and the corresponding reversing cylinders (503). The four reset springs (514) are respectively sleeved on the outside of the four inclined push rods (511), one end of the four inclined push rods (511) respectively penetrates one end of the four reversing cylinders (503), one end of the four U-shaped rods (505) respectively penetrates the other end of the four reversing cylinders (503), and the contact parts of the four U-shaped rods (505), the four inclined push rods (511) and the two inclined top plates (512) and the fixed mold (1) are all slidably connected.

7. The injection mold with a tilting ejector mechanism according to claim 1, Features: The surfaces of the movable mold (2) are respectively provided with pouring holes (6) and exhaust holes (7); two positioning seats (8) are respectively provided on both sides of the movable mold (2); through holes (9) are respectively provided on the surfaces of the four positioning seats (8); positioning rods (10) are slidably connected to the inner walls of the four through holes (9); and one end of the four positioning rods (10) is provided with a support seat (11) connected to the surface of the fixed mold (1).

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