Rubber mold opening mechanism

Abstract

The invention discloses a mold opening mechanism for a rubber mold, relates to the field of mold opening equipment, and aims to solve the problem. In order to solve the problems that when a conventional rubber mold is drawn, an upper mold plate and a boss plate are adhered, the drawing difficulty is increased, the production efficiency is reduced, and even a product is damaged, the device comprises a base, one side of the base is fixedly connected with a molding press, and the other side of the base is provided with a drawing machine; a sliding table is installed between the molding press and the drawing machine, a plastic film assembly is connected to the sliding table in a sliding mode, two sets of hook machine assemblies which are symmetrically distributed are arranged on the plastic film assembly, the drawing machine is located below the sliding table, a lifting table matched with the plastic film assembly is connected to the drawing machine in a sliding mode, and the lifting table is located below the plastic film assembly. The device has the advantages that synchronous lifting of the boss plate and the upper template is prevented through limiting of the hook machine assembly, adhesion of the boss plate and the upper template is prevented through relative movement of the boss plate and the upper template, working efficiency is improved, and meanwhile damage to plastic parts is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of demoulding equipment, in particular to a rubber mold demoulding mechanism. Background Art

[0002] With the rapid development of the rubber products industry, the design and manufacturing technology of rubber molds are constantly improving to meet the market demand for high-quality and high-precision rubber products; in the production process of rubber products, demolding is a crucial link, which is directly related to the final quality and production efficiency of the product. However, the traditional demolding method often has many shortcomings, especially when dealing with rubber products with complex shapes and high precision requirements. The problem is particularly prominent: First, during the vulcanization or extrusion process of rubber, due to the effects of high temperature and high pressure, a tight adsorption will be formed between the upper mold plate and the boss plate of the mold, resulting in difficulty in demolding, which not only increases the labor intensity of workers, but also may cause damage to the product; secondly, the traditional demolding method often relies on manual or simple mechanical devices, which cannot prevent the adhesion between the upper mold plate and the boss plate, resulting in a complicated and time-consuming demolding process, significantly reducing production efficiency and increasing production costs. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a rubber mold opening mechanism. Through this design, the problem of adhesion between the upper mold plate and the boss plate of the conventional rubber mold during mold opening is effectively solved, which increases the difficulty of mold opening, reduces production efficiency, and even causes product damage.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the present invention comprises a base, one side of the base is fixedly connected to a die pressing machine, the other side of the base is installed with a die stripping machine, a sliding table is installed between the die pressing machine and the die stripping machine, a plastic film assembly is slidably connected to the sliding table, the plastic film assembly is provided with two groups of symmetrically distributed hook machine assemblies, the die stripping machine is located below the sliding table, and a lifting platform cooperating with the plastic film assembly is slidably connected to the die stripping machine; The plastic film assembly includes a boss plate, an upper template, a cavity plate and a lower pad, which are stacked in sequence from top to bottom, the lower pad is fixedly connected to the cavity plate, and first protrusions are provided on both sides of the boss plate, and the first protrusions are located above the lifting platform; The hook machine assembly includes a first limit block, the first limit block is fixedly connected to the upper template, a hook is provided on one side of the first limit block, a second limit block is provided on one side of the first limit block, the second limit block is rotatably connected to the lower pad, a groove cooperating with the hook is provided on the inner side of the second limit block, a third limit block is provided on one side of the second limit block, and the third limit block is fixedly connected to the boss plate.

[0005] Preferably, the hook machine assembly also includes a fixed block, which is fixedly connected to the lower pad, and the fixed block is located below the first limit block. An elastic member is installed between the fixed block and the second limit block, and the second limit block has a first slide groove, and a limit pin is provided in the first slide groove, and the limit pin is fixedly connected to the cavity plate.

[0006] Preferably, first oblique grooves are provided on both sides of the upper end of the second limiting block, a second oblique groove is provided on the side of the upper end of the first limiting block, and a third oblique groove is provided on the side of the upper end of the third limiting block.

[0007] Preferably, the elastic member includes a first spring, one end of the first spring is fixedly connected to the fixing block, and the other end of the first spring is fixedly connected to the second limiting block.

[0008] Preferably, the molding machine comprises a support frame, a pressing plate is slidably connected to the support frame, the pressing plate is located above the sliding platform, and a hydraulic press for pushing the pressing plate to move vertically is provided on the support frame.

[0009] Preferably, the demolding machine also includes a base plate, a telescopic rod is installed on the base plate, the upper end of the telescopic rod is fixedly connected to the lifting platform, the lifting platform includes a first carrier plate, a first guide rod is fixedly connected to the first carrier plate, a support rod is fixedly connected to the first guide rod, the support rod is located directly below the first protrusion, and the first protrusion is provided with a first positioning groove that cooperates with the first guide rod.

[0010] Preferably, second protrusions are provided on both sides of the lower pad, the second protrusion casserole is provided with a second positioning groove, the support rod is located between the first protrusion and the second protrusion, the lifting platform has two groups, two bottom plates are slidably connected to the base, and the base is provided with a slide rail for driving the two bottom plates to slide relative to each other.

[0011] Preferably, a driving disk is rotatably connected to the base, and two connecting rods distributed at 180 degrees are hinged on the driving disk, and the two ends of the two connecting rods are respectively hinged to the two bottom plates.

[0012] Preferably, the first carrier plate is an n-type structure, a second slide groove is provided inside the first carrier plate, a second carrier plate is slidably connected in the second slide groove, a second guide rod is fixedly connected to the second carrier plate, a through hole is provided on the first carrier plate for the second guide rod to pass through, a clamping block is fixedly connected to the upper end of the second guide rod, and a clamping pin cooperating with the clamping block is fixedly connected to the upper template.

[0013] Preferably, the second carrier is rotatably connected to a roller that cooperates with the second slide groove, a support plate is provided at the bottom of the second carrier, an adjustment rod is installed between the support plate and the bottom plate, and a second spring is sleeved on the second guide rod at the lower side of the first carrier.

[0014] Compared with the prior art, the present invention has the following outstanding advantages: The present invention further installs a hook machine assembly on the side of the plastic film assembly. Under the limit of the hook machine assembly, the boss plate is initially raised and the hook of the upper template is clamped in the slot, so that the upper template and the boss plate are asynchronously raised in the initial stage, so that the boss plate and the upper template are separated, avoiding adhesion between the two, improving the mold removal efficiency and simplifying the demoulding process.

[0015] The present invention automatically demoulds and releases the plastic film component through a lifting platform, thereby reducing the labor workload of workers and improving the automation degree of equipment and factory production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present invention.

[0017] Figure 2 It is a schematic diagram of the connection structure between the molding machine and the sliding table of the present invention.

[0018] Figure 3 It is a schematic diagram of the connection structure of the mold stripping machine of the present invention.

[0019] Figure 4 It is a schematic diagram of the axial structure of the plastic film assembly of the present invention.

[0020] Figure 5 It is a schematic diagram of the left side structure of the plastic film assembly of the present invention.

[0021] Figure 6 It is a schematic diagram of a partial cross-sectional structure of the first carrier board of the present invention.

[0022] Figure 7 For the present invention Figure 4 Schematic diagram of the enlarged structure of A.

[0023] Figure 8 This is a schematic diagram of the overall structure of Example 2 of the present invention.

[0024] Fig. 9 It is a schematic diagram of the slide rail connection structure of the present invention.

[0025] Numbers in the figure: 1, base; 2, die press; 201, support frame; 202, pressing plate; 203, hydraulic press; 3, die stripper; 4, sliding table; 5, plastic film assembly; 501, boss plate; 502, upper template; 503, cavity plate; 504, lower pad; 505, first protrusion; 506, first positioning groove; 507, second protrusion; 508, second positioning groove; 6, hook assembly; 601, first limit block; 602, hook; 603, second limit block; 604, slot; 605, third limit block; 606, fixed Fixed block; 607, first slide groove; 608, limit pin; 609, first spring; 610, first inclined groove; 611, second inclined groove; 612, third inclined groove; 7, lifting platform; 701, first carrier plate; 702, first guide rod; 703, support rod; 704, slide rail; 705, drive disk; 706, connecting rod; 707, second slide groove; 708, second carrier plate; 709, second guide rod; 710, block; 711, pin; 712, roller; 713, support plate; 714, adjustment rod; 8, bottom plate; 9, telescopic rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example 1

[0027] Please refer to the attached Figure 1-7, a rubber mold opening mechanism of the present embodiment: comprises a base 1, a molding machine 2 is fixedly connected to one side of the base 1, a mold stripping machine 3 is installed on the other side of the base 1, a sliding table 4 is installed between the molding machine 2 and the mold stripping machine 3, a plastic film assembly 5 is slidably connected to the sliding table 4, and two groups of symmetrically distributed hook machine assemblies 6 are provided on the plastic film assembly 5, the mold stripping machine 3 is located below the sliding table, and a lifting platform 7 cooperating with the plastic film assembly 5 is slidably connected to the mold stripping machine 3; the plastic film assembly 5 comprises a boss plate 501, an upper template 502, a cavity plate 503 and a lower pad 504, the boss plate 501, the upper template 502, the cavity plate 503 and the lower pad 504 are stacked in sequence from top to bottom, and the lower pad 50 4 is fixedly connected to the cavity plate 503, and first protrusions 505 are provided on both sides of the boss plate 501, and the first protrusions 505 are located above the lifting platform 7; the hook machine assembly 6 includes a first limit block 601, and the first limit block 601 is fixedly connected to the upper template 502, and a hook 602 is provided on one side of the first limit block 601, and a second limit block 603 is provided on one side of the first limit block 601, and the second limit block 603 is rotatably connected to the lower pad 504, and a groove 604 cooperating with the hook 602 is provided on the inner side of the second limit block 603, and a third limit block 605 is provided on one side of the second limit block 603, and the third limit block 605 is fixedly connected to the boss plate 501.

[0028] The base 1 is located below the die pressing machine 2 and the die stripping machine 3. The base 1 plays a fixing role. The die pressing machine 2 and the die stripping machine 3 are placed front and back. The die pressing machine 2 is located behind the die stripping machine 3. The length of the sliding table 4 is the same as that of the base 1. The plastic film assembly 5 is located on the sliding table 4. The plastic film assembly 5 moves back and forth between the die pressing machine 2 and the die stripping machine 3 by the push of the sliding table 4. Before compressing the rubber, the plastic film assembly 5 is located at the position of the die stripping machine 3. The lifting platform 7 on the die stripping machine 3 opens the plastic film assembly 5. The die stripping machine 3 is located at the front side of the base 1. The plastic film assembly 5 is convenient for placing raw materials and finished products on the plastic film assembly 5. After the raw materials are placed, the plastic film assembly 5 will be buckled, and then it will be moved to the bottom of the molding machine 2 under the action of the sliding table 4. The molding machine 2 presses the plastic film assembly 5 to make the rubber in the plastic film assembly 5 deform according to the contour inside the plastic film assembly 5. After the molding machine 2 is finished, the sliding table 4 will transfer the plastic film assembly 5 to the demolding machine 3, and the plastic film assembly 5 will be demolded by the demolding machine 3. When demolding, the lifting table 7 in the demolding machine 3 will push the convex part of the uppermost layer of the plastic film assembly 5 to the uppermost layer of the plastic film assembly 5. The platform 501 rises, and under the action of the hook machine assembly 6, in the initial rising stage of the boss plate 501, the upper template 502 is hooked on the lower pad 504, and the boss plate 501 moves upward relative to the upper template 502, so that the boss plate 501 is separated from the upper template 502, and the upper template 502 and the boss plate 501 are prevented from sticking. After the boss plate 501 rises a certain distance, the upper template 502 moves upward with the boss plate 501, thereby completing the opening of the plastic film assembly 5 and carrying out the subsequent material removal work; the plastic film assembly 5 from top to bottom, it includes a boss plate 501, an upper mold plate 502, a cavity plate 503 and a lower pad 504, wherein the upper mold plate 502, the cavity plate 503 and the lower pad 504 have the same size, the lower pad 504 is mounted on the sliding table 4, the upper mold plate 502 and the cavity plate 503 are used for shaping the rubber, the boss plate 501 is located at the uppermost layer, the boss plate 501 is used for bearing pressure, when the molding machine 2 presses down, it first acts on the boss plate 501, and the rubber raw material in the upper mold plate 502 is squeezed and shaped through the boss plate 501;There are two groups of hook machine components 6, and the two groups of hook machine components 6 are respectively located on the left and right sides of the plastic film component 5. Similarly, there are also two lifting platforms 7 that cooperate with the plastic film component 5. The two lifting platforms 7 are located on the left and right sides of the plastic film component 5, which can make the plastic film component 5 lift smoothly. The first limit block 601 and the third limit block 605 in the hook machine component 6 are fixed by fixing bolts. The hook 602 on the front side of the first limit block 601 is inverted, and the upper side of the hook 602 is a horizontal structure. The upper end of the slot 604 on the second limit block 603 is also a horizontal structure, which can make the hook 602 and the slot 604 resist greater vertical force. When the upper template 502 is separated from the boss plate 501, the second limit block 603 Under the sufficient downward force on the first limit block 601, the upper template 502 is prevented from moving upward with the boss plate 501. The third limit block 605 is located at the front side of the second limit block 603. After the boss plate 501 drives the third limit block 605 to move a distance, the lower end of the third limit block 605 moves to the upper end of the second limit block 603, and the second limit block 603 can rotate forward. Then, the hook 602 of the first limit block 601 is separated from the slot 604. At this time, the lifting platform 7 will drive the upper template 502 to move upward. After driving the boss plate 501 to separate from the upper template, the lifting platform 7 can still open the plastic film assembly 5, which is convenient for the subsequent removal of the finished product and improves work efficiency. ;

[0029] In order to realize that when the third limit block 605 moves to above the second limit block 603, the second limit block 603 automatically opens, thereby improving the automation of the device, a fixed block 606 is installed in front of the second limit block, and an elastic member is installed between the fixed block 606 and the second limit block 603. The elastic member has a forward force on the second limit block 603, so that the second limit block 603 has a tendency to rotate forward. When the third limit block 605 is located in front of the second limit block 603, this movement tendency is blocked. When the third limit block 605 moves upward, the second limit block 603 automatically rotates forward under the action of the elastic member, thereby realizing the disengagement of the hook 602 from the slot 604. At this time, it does not affect the lifting platform 7 to push the upper template upward, so that the automation of the opened mold of the lifted plastic film component 5 is further improved. In order to improve the automation of closing the plastic film assembly 5, a slide groove is opened on one side of the second limit block 603, and a limit pin 608 is arranged in the slide groove. The limit pin 608 limits the forward rotation of the second limit block 603. When the plastic film assembly 5 is closed, the upper template drives the first limit block 601 to move downward, and the first limit block 601 will fall onto the cavity plate 503. At this time, the first inclined groove 610 on the front side of the second limit block 603 is obliquely matched with the third inclined groove 612 on the third limit block 605, and the second limit block 603 has a backward component force, so that the second limit block 603 compresses the spring backward, so that the second limit block 603 rotates backward, and the slot 604 and the hook 602 cooperate again. After the plastic film assembly 5 is closed, the hook machine assembly 6 automatically completes the closing, thereby improving the degree of automation during closing.

[0030] The elastic member is a component that exerts a forward force on the second limiting block 603 , and the elastic member is preferably the first spring 609 .

[0031] The molding machine 2 adopts hydraulic braking. A hydraulic press 203 is installed on the molding machine 2. The hydraulic press 203 is installed on the support frame 201. A pressure plate 202 is installed at the bottom of the support frame 201. The pressure plate 202 slides on the support frame 201 through the hydraulic press 203. When the plastic film assembly 5 is located directly below the molding machine 2, the pressure plate 202 presses the plastic film assembly 5.

[0032] There are two groups of bottom plates 8 of the demoulding machine 3, and the two groups of bottom plates 8 are located on the left and right sides of the plastic film assembly 5. When the upper template 502, the cavity plate 503 and the lower pad 504 in the plastic film assembly 5 are of the same size, and the boss plate 501 has a first protrusion 505 extending outward on both sides, the bottom plate 8 can be fixed on the base 1. At this time, the initial position of the lifting platform 7 is located directly below the boss plate 501. When the plastic film assembly 5 moves on the sliding platform 4, the boss plate 501 on the plastic film assembly 5 moves just above the first guide rod 702 in the lifting platform 7. At the same time, the groove of the block 710 on the second guide rod 709 is just opposite to the bayonet 711, and the bayonet 711 enters the groove of the block 710 when sliding. The middle part of the support rod 703 is connected to the sleeve, and the sleeve is fixed to the first guide rod 702 by screws. The support rod 703 can be adjusted on the first guide rod 702 by screws. When the plastic film assembly 5 moves to the front end, the telescopic rod 9 drives the first carrier plate 701 to move upward, and the first carrier plate 701 drives the first guide rod 702 to move upward. When the first guide rod 702 moves upward, it will enter the first positioning groove 506 of the boss plate 501, and the support rod 703 is located below the boss plate 501. By pushing up the two sides of the boss plate 501, the boss plate 501 is raised. The cooperation between the first positioning groove 506 and the upper end of the first guide rod 702 can prevent the boss plate 501 from slipping during lifting. There are four telescopic rods 9 on the two bottom plates 8. The telescopic rods 9 are hydraulically driven, so that the two first carrier plates 701 on both sides can be lifted steadily. Two first guide rods 702 are installed on the two first carrier plates 701. When acting on the boss plate 501, the four corners of the boss plate 501 are stressed at the same time, and the lifting of the boss plate 501 is relatively stable.In order to enable the lifting platform 7 to drive the upper template 502 to move upward after pushing the boss plate 501 to rise a certain distance, the first carrier plate 701 is an n-type structure, and a second carrier plate 708 is installed in the middle of the first carrier plate 701. The second carrier plate 708 is slidably connected with the first carrier plate 701. In the initial position, the second carrier plate 708 is located near the upper side of the first carrier plate 701. When the first carrier plate 701 initially moves upward, the second carrier plate 708 is buckled together by the block 710 and the bayonet 711, and the bayonet 711 is fixed on the upper template 502. The first limit block 6 on the upper template 502 01 is also stuck in the slot 604 of the second limit buckle. Based on the above connection relationship, the second carrier plate 708 will be in a stationary state relative to the upper template 502. At this time, the first carrier plate 701 moves upward relative to the second carrier plate 708. When the distance moved upward by the first carrier plate 701 is the same as the length of the third limit block 605, the hook 602 and the slot 604 on the hook machine component 6 are disengaged. At this time, the second carrier plate 708 just moves to the bottom of the second slide groove 707 in the first carrier plate 701. At this time, under the action of the second carrier plate 708, the second guide rod 709 follows the first guide rod 70 2 moves upward synchronously, and when the second guide rod 709 moves upward, the upper template 502 is driven to move upward through the clamping block 710 and the clamping pin 711, thereby completing the opening of the plastic film assembly 5; in the initial position, in order to overcome the deadweight of the second carrier plate 708, a support plate 713 is provided below the second carrier plate 708, and the support plate 713 supports the second carrier plate 708, so that the second carrier plate 708 is close to the top of the first carrier plate 701 in the initial position, and the height of the clamping block 710 can be adjusted by adjusting the position of the second carrier plate 708, so that the groove of the clamping block 710 is facing the clamping pin 711, when the plastic film assembly 5 moves forward and backward, the latch 711 can just move in and out along the groove of the latch block 710 to avoid collision; further, when the plastic film assembly 5 is closed, in order to make the first carrier plate 701 close to the bottom of the second slide groove 707, a second spring is installed on the second guide rod 709 below the first carrier plate 701. When the first carrier plate 701 falls, the downward elastic force of the second spring and the self-weight of the second carrier plate 708 ensure that the second carrier plate 708 drives the upper template 502 to fall stably, avoiding the situation of falling jam, and improving the efficiency of the device operation. ;

[0033] The second slide groove 707 is located on the inner side of the first carrier plate 701. There are four second slide grooves 707 on the first carrier plate 701. The four second slide grooves 707 are respectively located on the front and rear sides. The second slide grooves 707 guide the movement of the first carrier plate 701. In order to ensure the smoothness of sliding between the second carrier plate 708 and the first carrier plate 701, rollers 712 are installed in the four second slide grooves 707. The rollers 712 are rotatably connected to the second carrier plate 708, thereby reducing the friction coefficient between the second carrier plate 708 and the first carrier plate 701, and facilitating the vertical movement between the two.

[0034] The support plate 713 is located at the bottom of the second carrier plate 708. The support plate 713 is used to offset the deadweight of the second carrier plate 708. In the initial position, the second carrier plate 708 is located close to the upper layer of the first carrier plate 701. The support plate 713 is connected to the bottom plate 8 by an adjusting rod 714. There are four adjusting rods 714. The adjusting rod 714 is used to adjust the height of the support plate 713. The adjusting rod 714 can be a telescopic rod 9 or a combination of a screw and a sleeve. The height of the sleeve is adjusted by rotating the screw, so that the initial position of the second carrier plate 708 relative to the first carrier plate 701 can be adjusted, thereby increasing the scope of application of the device. Example 2

[0035] The structure is the same as the above embodiment. Figure 8 and Fig. 9 As shown, the specific difference of this embodiment is that: second protrusions 507 are provided on both sides of the lower pad 504, the second protrusion 507 is provided with a second positioning groove 508, the support rod 703 is located between the first protrusion 505 and the second protrusion 507, the lifting platform 7 has two groups, the two bottom plates 8 are slidably connected to the base 1, and the base 1 is provided with a slide rail 704 for driving the two bottom plates 8 to slide relative to each other; a driving disk 705 is rotatably connected to the base 1, and two connecting rods 706 distributed 180 degrees are hinged on the driving disk 705, and the two ends of the two connecting rods 706 are respectively hinged to the two bottom plates 8.

[0036] When the lower pad 504 in the plastic film assembly 5 has the second protrusion 507 extending to the left and right sides, the movement of the plastic film assembly 5 will interfere with the first guide rod 702. To avoid this situation, a slide rail 704 is installed on the base 1. The two groups of bottom plates 8 are located on both sides of the slide rail 704 and are symmetrically distributed about the center of the sliding platform 4. The two groups of bottom plates 8 approach or move away synchronously on the slide rail 704. The synchronous movement of the two groups of bottom plates 8 can improve work efficiency and ensure that the two groups of bottom plates 8 approach or move away from the plastic film assembly 5 synchronously. The moving spacing between the two is the same, and there is no need to adjust them one by one. A driving disk 705 and a connecting rod 706 for driving the two bottom plates 8 to move synchronously are installed on the base 1. The driving disk 705 is a self-locking disk, which will lock after rotation. At the stop angle, there are two connecting rods 706, and the two connecting rods 706 are diagonally distributed at 180 degrees. The two ends of the two connecting rods 706 are hinged to the two bottom plates 8. The driving disk 705, the connecting rod 706 and the bottom plate 8 constitute a crank slider mechanism. The rotation of the turntable drives the bottom plate 8 to slide left and right. When the plastic film assembly 5 moves back and forth, the two lifting platforms 7 move away from each other to avoid interference. When the plastic film assembly 5 needs to be demolded, the two lifting platforms 7 approach each other. The first guide rod 702 is sleeved in the first positioning groove 506 and the second positioning groove 508 of the first protrusion 505 and the second protrusion 507. The support rod 703 is located between the first protrusion 505 and the second protrusion 507. The block 710 is directly opposite to the bayonet pin 711 or the block 710 is located at the bayonet pin 711. The first support plate 701 is connected to the first support plate 702 by the second support plate 703, and the second support plate 703 is connected to the first support plate 701 by the second support plate 703. 1, when the first carrier plate 701 initially moves upward, the second carrier plate 708 is buckled together due to the block 710 and the latch pin 711, and the latch pin 711 is fixed on the upper template 502, and the hook 602 of the first limit block 601 on the upper template 502 is also stuck in the slot 604 of the second limit block. Based on the above connection relationship, the second carrier plate 708 will be stationary relative to the upper template 502. At this time, the first carrier plate 701 moves upward relative to the second carrier plate 708. When the distance moved upward by the first carrier plate 701 is the same as the length of the third limit block 605, the hook 602 and the slot 604 on the hook machine assembly 6 are disengaged. At this time, the second carrier plate 708 just moves to the bottom of the second slide groove 707 in the first carrier plate 701.At this time, under the action of the second carrier plate 708, the second guide rod 709 moves upward synchronously with the first guide rod 702. When the second guide rod 709 moves upward, the upper template 502 is driven to move upward through the block 710 and the latch 711, thereby completing the opening of the plastic film assembly 5.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber mold opening mechanism, characterized in that: The invention comprises a base (1), one side of the base (1) is fixedly connected to a die pressing machine (2), the other side of the base (1) is installed with a die stripping machine (3), a sliding platform (4) is installed between the die pressing machine (2) and the die stripping machine (3), a plastic film assembly (5) is slidably connected to the sliding platform (4), the plastic film assembly (5) is provided with two groups of symmetrically distributed hook machine assemblies (6), the die stripping machine (3) is located below the sliding platform, and a lifting platform (7) cooperating with the plastic film assembly (5) is slidably connected to the die stripping machine (3); The plastic film assembly (5) comprises a boss plate (501), an upper mold plate (502), a cavity plate (503) and a lower pad (504), wherein the boss plate (501), the upper mold plate (502), the cavity plate (503) and the lower pad (504) are stacked in sequence from top to bottom, wherein the lower pad (504) is fixedly connected to the cavity plate (503), and first protrusions (505) are provided on both sides of the boss plate (501), wherein the first protrusions (505) are located above the lifting platform (7); The hook machine assembly (6) comprises a first limit block (601), the first limit block (601) is fixedly connected to the upper template (502), a hook (602) is provided on one side of the first limit block (601), a second limit block (603) is provided on one side of the first limit block (601), the second limit block (603) is rotatably connected to the lower pad (504), a groove (604) cooperating with the hook (602) is provided on the inner side of the second limit block (603), a third limit block (605) is provided on one side of the second limit block (603), and the third limit block (605) is fixedly connected to the boss plate (501).

2. A rubber mold opening mechanism according to claim 1, characterized in that: The hook machine assembly (6) also includes a fixed block (606), the fixed block (606) is fixedly connected to the lower pad, the fixed block (606) is located below the first limit block (601), an elastic member is installed between the fixed block (606) and the second limit block (603), the second limit block (603) has a first slide groove (607), a limit pin (608) is provided in the first slide groove (607), and the limit pin (608) is fixedly connected to the cavity plate (503).

3. A rubber mold opening mechanism according to claim 1 or 2, characterized in that: A first oblique groove (610) is provided on both sides of the upper end of the second limiting block (603), a second oblique groove (611) is provided on the side of the upper end of the first limiting block (601), and a third oblique groove (612) is provided on the side of the upper end of the third limiting block (605).

4. A rubber mold opening mechanism according to claim 2, characterized in that: The elastic member comprises a first spring (609), one end of the first spring (609) is fixedly connected to the fixing block (606), and the other end of the first spring (609) is fixedly connected to the second limiting block (603).

5. The rubber mold opening mechanism according to claim 1, characterized in that: The die pressing machine (2) comprises a support frame (201), a pressing plate (202) is slidably connected to the support frame (201), the pressing plate (202) is located above the sliding platform (4), and a hydraulic press (203) is provided on the support frame (201) for pushing the pressing plate (202) to move vertically.

6. The rubber mold opening mechanism according to claim 1, characterized in that: The demoulding machine (3) further comprises a bottom plate (8), a telescopic rod (9) is mounted on the bottom plate (8), the upper end of the telescopic rod (9) is fixedly connected to the lifting platform (7), the lifting platform (7) comprises a first carrier plate (701), a first guide rod (702) is fixedly connected to the first carrier plate (701), a support rod (703) is fixedly connected to the first guide rod (702), the support rod (703) is located directly below the first protrusion (505), and the first protrusion (505) is provided with a first positioning groove (506) that cooperates with the first guide rod (702).

7. A rubber mold opening mechanism according to claim 6, characterized in that: The lower pad (504) is provided with a second protrusion (507) on both sides, and the second protrusion (507) is provided with a second positioning groove (508). The support rod (703) is located between the first protrusion (505) and the second protrusion (507). The lifting platform (7) has two groups, and the two bottom plates (8) are slidably connected to the base (1). The base (1) is provided with a slide rail (704) for driving the two bottom plates (8) to slide relative to each other.

8. A rubber mold opening mechanism according to claim 7, characterized in that: The base (1) is rotatably connected to a driving disk (705), and the driving disk (705) is hinged with two connecting rods (706) distributed at a 180-degree angle, and the two ends of the two connecting rods (706) are respectively hinged to the two bottom plates (8).

9. The rubber mold opening mechanism according to claim 6, characterized in that: The first carrier plate (701) is an n-type structure, a second slide groove (707) is provided in the first carrier plate (701), a second carrier plate (708) is slidably connected in the second slide groove (707), a second guide rod (709) is fixedly connected to the second carrier plate (708), a through hole is provided on the first carrier plate (701) for the second guide rod (709) to pass through, a clamping block (710) is fixedly connected to the upper end of the second guide rod (709), and a clamping pin (711) that cooperates with the clamping block (710) is fixedly connected to the upper template (502).

10. A rubber mold opening mechanism according to claim 9, characterized in that: The second carrier plate (708) is rotatably connected to a roller (712) that cooperates with the second slide groove (707); a support plate (713) is provided at the bottom of the second carrier plate (708); an adjustment rod (714) is installed between the support plate (713) and the bottom plate (8); and a second spring is sleeved on the second guide rod (709) at the lower side of the first carrier plate (701).

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