Rapid demolding device and mold for rotary polyurethane product

Abstract

The utility model provides a rapid demolding device and a mold for a rotary polyurethane product, relates to the technical field of demolding devices, and solves the problems that an injection molding product of the existing rotary polyurethane product depends on manpower too much during demolding, the safety operation risk is higher, and the labor force is greatly wasted. The automatic demolding device comprises an outer demolding device which is arranged on the upper portion of a rack and used for separating an outer mold, the outer demolding device comprises a magnetic adsorption device used for adsorbing the outer mold and a lifting driving assembly used for driving the magnetic adsorption device to move up and down, and the automatic demolding device further comprises a demolding lifting device which is arranged on the lower portion of the rack and used for lifting a product to be separated from an inner mold. The demolding lifting device comprises a caliper assembly used for clamping a product to facilitate follow-up demolding lifting and a lifting assembly used for providing power for lifting the product. The device has the beneficial effects that the production efficiency of a workshop is improved, the time and the labor cost are saved, and the safety risk in the outward transfer process required by product demolding is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding devices, in particular to a rapid demoulding device and a mold for round-pressed polyurethane products. Background Art

[0002] The injection molding and demolding process of the round-pressed polyurethane products commonly used in factory production currently relies too much on manpower to complete, and requires multi-platform operations to move the mold back and forth. There are greater safety risks in the transportation process, and it greatly wastes labor, and it is impossible to carry out workshop production operations efficiently. Utility Model Content

[0003] The utility model aims to solve the problem that the existing injection molded products of round-pressed polyurethane products rely too much on manpower during demoulding, which has a greater safety operation risk and greatly wastes labor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A rapid demoulding device for a round-pressed polyurethane product comprises a frame, and is characterized in that it also comprises an external demoulding device arranged on the upper part of the frame for detaching from an outer film, the external demoulding device comprises a magnetic adsorption device for adsorbing the outer mold and a lifting drive assembly for driving the magnetic adsorption device to move up and down, the magnetic adsorption device is provided with a group of safety bolts for clamping the outer mold and preventing the outer mold from accidentally falling off during demoulding, and also comprises a demoulding lifting device arranged at the lower part of the frame for lifting the product off the inner mold, the demoulding lifting device comprises a caliper assembly for clamping the product to facilitate subsequent demoulding and lifting, and a lifting assembly for providing power for lifting the product.

[0006] A further improvement is that: the frame includes a frame platform, and columns are fixedly installed at the four corners of the upper surface of the frame platform, an upper bracket is fixedly installed on the upper end of the column, the lifting drive assembly includes a first cylinder installed on the upper end of the upper bracket, the magnetic adsorption device includes a lifting plate and an upper electromagnet installed on the bottom surface of the lifting plate and adsorbing the upper end of the outer mold by powering on, the lifting plate is slidably sleeved on the column, and the output end of the first cylinder extends downwardly from the upper bracket and is fixedly connected to the upper end surface of the lifting plate.

[0007] A further improvement is: an operating table is fixedly connected under the frame platform, the caliper assembly includes a lower bracket which is lifted and lowered in the operating table, a group of second guide rails are symmetrically arranged on the left and right parts of the upper surface of the lower bracket, second slides are slidably arranged on the two second guide rails, a caliper driving assembly for driving the two second slides to slide left and right is arranged on the lower bracket, and a lifting column is fixedly connected to the two second slides, the lifting column extends upward from the frame platform, and a caliper for clamping the edge of the product is fixedly connected to the upper end of the lifting column.

[0008] A further improvement is that the lifting assembly includes a third cylinder installed on the bottom surface of the operating platform below the lower bracket, the output end of the third cylinder extends upward from the operating platform and is fixedly connected to the bottom surface of the lower bracket, and a group of guide columns are symmetrically installed at both ends of the bottom surface of the lower bracket, and the guide columns are slidably inserted into the bottom surface of the operating platform.

[0009] A further improvement is: the caliper drive assembly includes a second motor, a bidirectional screw, the bidirectional screw is rotatably connected to the bottom of the front end of the lower bracket, the second motor is installed on one side of the lower bracket, the output end of the second motor is fixedly connected to one end of the bidirectional screw, and the two ends of the bidirectional screw are symmetrically threaded with a group of screw nuts, the inner nuts of the two screw nuts are opposite, and the two screw nuts are fixedly connected to the second slide seat through a connecting block.

[0010] A further improvement is: it also includes a mold conveying device for conveying the mold to the workstation, the mold conveying device includes a first guide rail installed on the frame platform, a first slide seat is slidably arranged on the first guide rail, a first motor is installed on a side wall of the frame platform, the output end of the first motor is fixedly connected upward with a gear, a side surface of the first slide seat is provided with a rack meshing with the gear, and the upper surface of the first slide seat is provided with a lower electromagnet that adsorbs the bottom surface of the inner mold by powering on.

[0011] A further improvement is that the safety bolt includes a mounting frame installed on the bottom surfaces of both sides of the magnetic adsorption device, a second cylinder is installed on the outward side of the mounting frame, and the output end of the second cylinder is fixedly connected inwardly with a safety bolt top block.

[0012] A further improvement is that a switch panel is also provided on one side of the upper surface of the rack platform.

[0013] A mold, used for a quick demoulding device for a round-pressed polyurethane product, characterized in that it includes an outer mold and an inner mold, the inner mold is sleeved with a push plate, the middle of the push plate is provided with a circular opening that fits the inner mold, the push plate is sleeved on the inner mold through the circular opening, the caliper is clamped on the edge of the push plate during demoulding, the upper end of the outer mold is equipped with an upper plate for adsorbing on the upper electromagnet on the bottom surface of the magnetic adsorption device, and the lower end of the inner mold is equipped with a lower plate for adsorbing on the lower electromagnet on the upper surface of the first slide.

[0014] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0015] Only one worker is needed to operate the equipment to separate the inner and outer molds and remove the products from the inner mold at the same time, which improves the production efficiency of the workshop, greatly saves time and labor costs, and avoids the safety risks during the transfer process when the product is demolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the mold 8 and the product 10 in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure in which the mold 8 is located on the mold conveying device 7 in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure between the frame platform 1, the mold conveying device 7 and the demoulding lifting device 9 in the utility model;

[0021] Figure 5 It is a schematic diagram of the structure between the safety bolt 6, the mold 8 and the magnetic adsorption device 5 in the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the demoulding lifting device 9 in the utility model;

[0023] Figure 7 It is a structural schematic diagram of another angle of the demoulding lifting device 9 in the utility model.

[0024] Explanation of the accompanying drawings: rack platform 1, column 2, upper bracket 3, first cylinder 4, magnetic adsorption device 5, safety bolt 6, mounting frame 61, second cylinder 62, safety bolt top block 63, mold conveying device 7, first guide rail 71, first slide 72, rack 73, first motor 74, gear 75, mold 8, outer mold 81, inner mold 82, push plate 83, demolding lifting device 9, lower bracket 91, second motor 92, bidirectional screw 93, screw nut 94, second guide rail 95, second slide 96, demolding column 97, caliper 98, third cylinder 99, product 10, switch panel 11. DETAILED DESCRIPTION

[0025] See also Figure 1-Figure 7 As shown, the technical solution adopted in this specific embodiment is: a rapid demolding device for round-pressed polyurethane products, including a frame, characterized in that it also includes an external demolding device arranged on the upper part of the frame for detaching from the outer film 81, the external demolding device includes a magnetic adsorption device 5 for adsorbing the outer mold 81 and a lifting drive assembly for driving the magnetic adsorption device 5 to move up and down, the magnetic adsorption device 5 is provided with a group of safety bolts 6 for clamping the outer mold 81 and preventing the outer mold 81 from accidentally falling off during demolding, and also includes a demolding lifting device 9 arranged at the lower part of the frame for lifting the product 10 away from the inner mold 82, the demolding lifting device 9 includes a caliper assembly for clamping the product to facilitate subsequent demolding and lifting, and a lifting assembly for providing power for lifting the product.

[0026] Wherein, the frame includes a frame platform 1, and columns 2 are fixedly installed at the four corners of the upper surface of the frame platform 1, and an upper bracket 3 is fixedly installed on the upper end of the column 2. The lifting drive assembly includes a first cylinder 4 installed on the upper end of the upper bracket 3, and the magnetic adsorption device 5 includes a lifting plate and an upper electromagnet installed on the bottom surface of the lifting plate and adsorbing the upper end of the outer mold by powering on. The lifting plate is slidably sleeved on the column 2, and the output end of the first cylinder 4 extends downward from the upper bracket and is fixedly connected to the upper end surface of the lifting plate.

[0027] Among them, an operating table is fixedly connected to the bottom of the rack platform 1, and the caliper assembly includes a lower bracket 91 that is lifted and lowered in the operating table, a group of second guide rails 95 are symmetrically arranged on the left and right parts of the upper surface of the lower bracket 91, and second slides 96 are slidably arranged on the two second guide rails 95. A caliper driving assembly for driving the two second slides 96 to slide left and right is arranged on the lower bracket 91, and the two second slides 96 are fixedly connected with a lifting column 97, which extends upward from the rack platform 1, and the upper end of the lifting column 97 is fixedly connected with a caliper 98 for clamping the edge of the product.

[0028] Among them, the lifting assembly includes a third cylinder 99 installed on the bottom surface of the operating platform below the lower bracket 91, and the output end of the third cylinder 99 extends upward from the operating platform and is fixedly connected to the bottom surface of the lower bracket 91. A group of guide columns are symmetrically installed at both ends of the bottom surface of the lower bracket 91, and the guide columns are slidably inserted into the bottom surface of the operating platform.

[0029] Among them, the caliper drive assembly includes a second motor 92, a bidirectional screw rod 93, and the bidirectional screw rod 93 is rotatably connected to the bottom of the front end of the lower bracket 91. The second motor 92 is installed on one side of the lower bracket 91, and the output end of the second motor 92 is fixedly connected to one end of the bidirectional screw rod 93. The two ends of the bidirectional screw rod 93 are symmetrically threadedly connected with a group of screw nuts 94. The inner nuts of the two screw nuts 94 are opposite, and the two screw nuts 94 are fixedly connected to the second slide seat 96 through a connecting block.

[0030] Among them, it also includes a mold conveying device 7 for conveying the mold 8 to the work station, and the mold conveying device 7 includes a first guide rail 71 installed on the frame platform 1, and a first slide seat 72 is slidably arranged on the first guide rail 71. A first motor 74 is installed on a side wall of the frame platform 1, and an output end of the first motor 74 is fixedly connected upward with a gear 75. A side surface of the first slide seat 72 is provided with a rack 73 meshing with the gear 75, and a lower electromagnet is arranged on the upper surface of the first slide seat 72 for adsorbing the bottom surface of the inner mold by powering on.

[0031] The safety bolt 6 comprises a mounting frame 61 mounted on the bottom surfaces of both sides of the magnetic adsorption device 5, a second cylinder 62 is mounted on the outward side of the mounting frame 61, and a safety bolt top block 63 is fixedly connected inwardly to the output end of the second cylinder 62.

[0032] Wherein, a switch panel 11 is further provided on one side of the upper surface of the rack platform 1 .

[0033] A mold, used for a quick demoulding device for a round-pressed polyurethane product, characterized in that it includes an outer mold 81 and an inner mold 82, wherein the inner mold 82 is sleeved with a push plate 83, and a circular opening matching the inner mold 82 is opened in the middle of the push plate 83, and the push plate 83 is sleeved on the inner mold 82 through the circular opening, and the caliper 98 is clamped on the edge of the push plate 83 during demoulding, and an upper plate for adsorbing on the upper electromagnet on the bottom surface of the magnetic adsorption device 5 is installed on the upper end of the outer mold 81, and a lower plate for adsorbing on the lower electromagnet on the upper surface of the first slide 72 is installed on the lower end of the inner mold 82. Before injection molding, we put a push plate in the lower end of the outer ring of the inner mold in advance. The push plate is movable and can move upward to separate from the inner mold when the inner and outer molds are separated. Correspondingly, when we are in the demolding process, the outer mold has been separated from the inner mold, but our injection molded product will be attached to our inner mold in the future. At this time, we can clamp the push plate we put in advance with calipers and move it upward. When our push plate moves upward, it will take our product out of our inner mold together.

[0034] The working principle of the utility model is as follows: when in use, we move the mold product to be demoulded into the mold conveying device of the frame platform, place the mold on the second slide, turn on the switch of the electromagnet on the second slide, firmly stick the lower plate with the inner mold on the second slide, then start the first motor to drive the gear to rotate, the second slide has a rack and gear meshing, and correspondingly slides on the second guide rail to drive the mold product to the station to be demoulded, then start the first cylinder to drive the magnetic adsorption device to move slowly downward, one side of the electromagnet of the magnetic adsorption device is close to the upper plate of the outer mold and firmly attached, and then turn on the magnetic The electromagnet of the magnetic adsorption device is switched on and off, so that the upper plate of the outer mold will be adsorbed on the magnetic adsorption device, and then the safety bolt is activated, and the safety bolt top block is driven by the second cylinder to move toward the outer mold and hold the side wall of the outer mold to clamp the outer mold. After that, we can drive the magnetic adsorption device to move upward through the first cylinder. Since our upper plate is adsorbed in the magnetic adsorption device due to the electromagnet and moves upward with the magnetic adsorption device, our outer mold moves upward and gradually separates from the inner mold until the inner and outer molds are completely separated. The safety bolt can prevent the outer mold from accidentally falling when it is separated from the outer mold, which is safer;

[0035] After we separate the outer mold, start the third cylinder to control the lower bracket to move up and down, and the corresponding components on the lower bracket will move accordingly. When the caliper moves up to the same height as the push plate, it stops moving up, and then the second motor drives the bidirectional lead screw to rotate. The lead screw nut on the bidirectional lead screw moves inward accordingly, driving the second slide seat above to move on the second guide rail, and the lifting column and the caliper at the upper end clamp the push plate at the lower end of the outer ring of the inner mold, and then start the third cylinder to move upward, so that the push plate on the inner mold will move upward with our product and allow the product to separate from our inner mold.

[0036] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A rapid demoulding device for round-pressed polyurethane products, comprising a frame, characterized in that: The machine also includes an external demoulding device disposed on the upper part of the frame for separating the outer film, the external demoulding device including a magnetic adsorption device for adsorbing the outer mold and a lifting drive assembly for driving the magnetic adsorption device to move up and down, the magnetic adsorption device is provided with a group of safety bolts for clamping the outer mold and preventing the outer mold from accidentally falling off during demoulding, and also includes a demoulding lifting device disposed at the lower part of the frame for lifting the product off the inner mold, the demoulding lifting device including a caliper assembly for clamping the product for subsequent demoulding and lifting, and a lifting assembly for providing power for lifting the product.

2. A rapid demoulding device for round-pressed polyurethane products according to claim 1, characterized in that: The frame includes a frame platform, and columns are fixedly installed at the four corners of the upper surface of the frame platform. An upper bracket is fixedly installed on the upper end of the column. The lifting drive assembly includes a first cylinder installed on the upper end of the upper bracket. The magnetic adsorption device includes a lifting plate and an upper electromagnet installed on the bottom surface of the lifting plate and adsorbing the upper end of the outer mold by powering on. The lifting plate is slidably sleeved on the column, and the output end of the first cylinder extends downwardly from the upper bracket and is fixedly connected to the upper end surface of the lifting plate.

3. A rapid demoulding device for round-pressed polyurethane products according to claim 2, characterized in that: An operating table is fixedly connected to the bottom of the frame platform, and the caliper assembly includes a lower bracket which is lifted and lowered in the operating table, a group of second guide rails are symmetrically arranged on the left and right parts of the upper surface of the lower bracket, and second slides are slidably arranged on the two second guide rails, and a caliper driving assembly for driving the two second slides to slide left and right is arranged on the lower bracket, and a lifting column is fixedly connected to the two second slides, and the lifting column extends upward from the frame platform, and a caliper for clamping the edge of the product is fixedly connected to the upper end of the lifting column.

4. A rapid demoulding device for round-pressed polyurethane products according to claim 3, characterized in that: The lifting assembly includes a third cylinder installed on the bottom surface of the operating platform below the lower bracket, the output end of the third cylinder extends upwardly from the operating platform and is fixedly connected to the bottom surface of the lower bracket, and a group of guide columns are symmetrically installed at both ends of the bottom surface of the lower bracket, and the guide columns are slidably inserted in the bottom surface of the operating platform.

5. A rapid demoulding device for round-pressed polyurethane products according to claim 4, characterized in that: The caliper drive assembly includes a second motor and a bidirectional screw rod, the bidirectional screw rod is rotatably connected to the bottom of the front end of the lower bracket, the second motor is installed on one side of the lower bracket, the output end of the second motor is fixedly connected to one end of the bidirectional screw rod, and a group of screw rod nuts are symmetrically threaded at both ends of the bidirectional screw rod, the inner nuts of the two screw rod nuts are opposite, and the two screw rod nuts are fixedly connected to the second slide seat through a connecting block.

6. A rapid demoulding device for round-pressed polyurethane products according to claim 5, characterized in that: It also includes a mold conveying device for conveying the mold to the workstation, the mold conveying device includes a first guide rail installed on the frame platform, a first slide seat is slidably arranged on the first guide rail, a first motor is installed on a side wall of the frame platform, an output end of the first motor is fixedly connected upward with a gear, a side surface of the first slide seat is provided with a rack meshing with the gear, and a lower electromagnet is provided on the upper surface of the first slide seat for adsorbing the bottom surface of the inner mold by powering on.

7. A rapid demoulding device for round-pressed polyurethane products according to claim 6, characterized in that: The safety bolt comprises a mounting frame mounted on the bottom surfaces of both sides of the magnetic adsorption device, a second cylinder is mounted on the outward side of the mounting frame, and a safety bolt top block is fixedly connected inwardly at the output end of the second cylinder.

8. A mold for a rapid demoulding device for a round-to-round polyurethane product according to any one of claims 1 to 7, characterized in that: It includes an outer mold and an inner mold, a push plate is sleeved on the inner mold, a circular opening is opened in the middle of the push plate and matches with the inner mold, the push plate is sleeved on the inner mold through the circular opening, the caliper is clamped on the edge of the push plate during demoulding, an upper plate for adsorbing on the upper electromagnet on the bottom surface of the magnetic adsorption device is installed on the upper end of the outer mold, and a lower plate for adsorbing on the lower electromagnet on the upper surface of the first slide is installed on the lower end of the inner mold.

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