Die changing device of extruder

Abstract

The utility model relates to an extruder die changing device which is characterized by comprising a support, moving wheels connected with the bottom of the support, a lifting assembly installed on the support, an overturning assembly installed on the lifting assembly, a connecting rod with one end connected with the overturning assembly and a magnetic attraction assembly connected with the other end of the connecting rod. The magnetic attraction assembly is used for attracting the mold, and the turnover assembly drives the connecting rod to turn over so as to take down the mold. The magnetic attraction assembly can replace a worker to take the mold during working, the worker is prevented from being scalded by the high temperature of the mold, the working safety of the worker is guaranteed, the lifting assembly, the overturning assembly and the magnetic attraction assembly are matched to achieve lifting or taking down of the mold, the labor intensity of the worker is reduced, the mold is moved through the moving wheels during moving, and the physical strength of the worker can also be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and more specifically to a mold changing device for an extruder. Background Art

[0002] In the plastic extrusion industry, plastic products are produced using extruders in conjunction with molds. Different products correspond to different molds. During production, the specifications of the products produced need to be frequently switched, which requires frequent mold replacement. The molds of some extruders are installed at a high position, and some large-caliber molds are heavy. The existing mold replacement method generally requires manual disassembly and mold replacement. Heavy molds are inconvenient to replace, and are prone to falling, posing a safety risk. In addition, the temperature of the mold that has just stopped production is also relatively high, and there is a risk of burns when manually replacing it. Utility Model Content

[0003] In order to overcome the defects of the above-mentioned prior art that manual mold changing is inconvenient and has safety risks, the utility model provides an extruder mold changing device to facilitate manual mold changing and avoid safety problems.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an extruder mold changing device, comprising: a bracket, a moving wheel connected to the bottom of the bracket, a lifting assembly installed on the bracket, a flip assembly installed on the lifting assembly, a connecting rod connected to the flip assembly at one end, and a magnetic suction assembly connected to the other end of the connecting rod, the lifting assembly drives the flip assembly to lift and lower, the magnetic suction assembly is used to absorb the mold, and the flip assembly drives the connecting rod to flip and then remove the mold.

[0005] When the device is in the initial state, the lifting assembly is in a descending state, and the connecting rod is in a vertical downward state. When the mold needs to be removed, the lifting assembly drives the flip assembly, the connecting rod and the magnetic suction assembly to rise together, and the flip assembly drives the connecting rod to flip, so that the connecting rod flips from the vertical downward state to the horizontal forward state, and then the entire device is moved by the moving wheel to make the magnetic suction assembly contact with the mold on the extruder, so that the magnetic suction assembly attracts the mold, and then the mold is manually removed. After the mold is removed, the mold is removed by the moving wheel, and then the flip assembly drives the connecting rod to reset, and the lifting assembly drives the mold to descend and place it in the specified position, and then the device is moved to the new mold by the moving wheel, the magnetic suction assembly attracts the new mold, the lifting assembly rises, and the flip assembly drives the connecting rod to flip to a horizontal state, and then the mold is moved to the extruder by the moving wheel, and then the mold is installed manually to complete the mold replacement. When disassembling the mold, the device can temporarily fix the mold to avoid the risk of the mold falling. After the mold is disassembled, the device will suck the mold and put it on the ground, without the need to manually remove the mold, to avoid the mold falling, to avoid the mold scalding workers, and to reduce the labor intensity of workers. When replacing a new mold, the device can also assist workers in lifting and fixing the mold, which can also reduce the labor intensity of workers and ensure their work safety. Furthermore, the magnetic suction component can use a general magnet or electromagnet to absorb the mold.

[0006] Preferably, the lifting assembly includes a lifting platform slidably connected to the bracket, a first screw rotatably connected to the lifting platform, and a first driving unit connected to the first screw, the first driving unit drives the first screw to rotate, and the first screw is threadedly connected to the bracket.

[0007] The first drive unit drives the first screw to rotate, and the first screw is lifted relative to the bracket, thereby driving the lifting platform to lift. The first drive unit can use a rotary motor, which is installed on the lifting platform, and the rotating end of the rotary motor passes through the lifting platform and is connected to the first screw, so as to drive the first screw to rotate. The first drive unit can also use other drive structures. Among them, the first screw is preferably set to be fixed relative to the lifting platform in the axial direction.

[0008] Preferably, the first driving unit comprises a first hand wheel rotatably connected to the bracket, the first hand wheel is threadedly connected to the first screw, and the first hand wheel is axially fixed relative to the bracket.

[0009] The first hand wheel drives the first screw rod to move up and down when rotating forward and reversely. The hand wheel is used as a driving component, which saves costs and can easily control the lifting height, which is more suitable for workers to use.

[0010] Preferably, the flipping assembly includes a sliding plate slidably connected to the lifting platform, a second driving unit connected to the sliding plate, a rack connected to the sliding plate, a fixing connected to the bracket, a rotating shaft rotatably connected to the fixing, a first gear and a connecting block respectively mounted on the rotating shaft, the second driving unit is used to drive the sliding plate to reciprocate, the rack drives the first gear to rotate, and the connecting block is connected to the connecting rod.

[0011] The second driving unit drives the sliding plate to move back and forth, the sliding plate drives the rack to move, the rack drives the first gear to rotate, the first gear and the connecting block are fixedly connected to the rotating shaft, and then drives the connecting block to rotate, and then drives the connecting rod to rotate, so as to realize the turning of the connecting rod, the rack can directly mesh with the first gear, or it can drive other gears to rotate, and then indirectly drive the first gear to rotate. The second driving unit can realize reciprocating linear drive, and can adopt a linear push rod or other driving structure.

[0012] Preferably, the flip assembly further comprises a second gear rotatably connected to the fixing member, the second gear meshes with the rack and the first gear at the same time, and the rack drives the second gear to rotate and then drives the first gear to rotate.

[0013] The rack is meshed with the second gear alone, and the second gear is meshed with the rack and the first gear at the same time, thereby driving the first gear to rotate through the movement of the rack. Setting the second gear can increase the distance between the rack and the connecting block, facilitate the setting of the connecting block, and avoid interference with the lifting platform when the connecting block rotates. The second gear can also be made equal to or smaller than the first gear, so that the second drive single cloud can be driven more labor-saving.

[0014] Preferably, the diameter of the second gear is smaller than the diameter of the first gear.

[0015] The diameter of the second gear is set to be smaller than that of the first gear, so that the second drive can be driven more labor-savingly when the second drive is driven alone.

[0016] Preferably, the second driving unit includes a second screw rotatably connected to the sliding plate, a vertical plate connected to the lifting platform, and a second hand wheel rotatably connected to the vertical plate, the second hand wheel is threadedly connected to the second screw, the second screw is axially fixed relative to the sliding plate, and the second hand wheel is axially fixed relative to the vertical plate.

[0017] When the second hand wheel rotates, it drives the second screw rod to move, and further drives the sliding plate to move back and forth. The second hand wheel uses a hand wheel as a driving member to save costs and facilitate workers' operation.

[0018] Preferably, the flip assembly further comprises a slide rail connected to the lifting platform and a slider slidably connected to the slide rail, and the sliding plate is mounted on the slider.

[0019] The sliding plate is installed on the slider and moves relative to the slide rail, and then moves relative to the lifting platform. The slide rail and the slider are common and practical sliding components. The slide rail and the slider increase the smoothness of the movement of the sliding plate and reduce the sliding friction of the sliding plate.

[0020] Preferably, the racks are connected on both sides of the sliding plate, the lifting platform is connected to two of the fixing parts, the two fixing parts are respectively rotatably connected to the second gear, the rotating shaft is simultaneously rotatably connected to the two fixing parts, two of the first gears are mounted on the rotating shaft, and the connecting block is located between the two first gears.

[0021] Two racks, two second gears and two first gears are arranged for transmission, and a connecting block is arranged between the two first gears to ensure structural stability and increase transmission effect.

[0022] Preferably, the magnetic attraction assembly includes a magnet connected to the connecting rod.

[0023] The use of magnets in the magnetic suction component can reduce costs. At the same time, it is necessary to choose magnets with strong magnetic properties to prevent the mold from falling after the connecting rod is flipped.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The magnetic component can hold the mold on behalf of the workers when working, avoiding the high temperature of the mold from scalding the workers and ensuring the workers' work safety. The lifting component, flip component and magnetic component cooperate to lift or remove the mold, reducing the labor intensity of the workers. The mold is moved by moving wheels, which can also save the workers' physical strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an extruder die changing device of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a flip assembly of a die changing device for an extruder of the utility model;

[0028] Figure 3 yes Figure 2 A magnified schematic diagram of part A.

[0029] In the figure:

[0030] 1. Bracket; 2. Moving wheels;

[0031] 3. Lifting assembly; 301. Lifting platform; 302. First screw rod; 303. First hand wheel;

[0032] 4. Flip assembly; 401. Sliding plate; 402. Rack; 403. Fixing member; 404. Rotating shaft; 405. First gear; 406. Connecting block; 407. Second gear; 408. Second screw; 409. Vertical plate; 410. Second hand wheel; 411. Slide rail; 412. Sliding block;

[0033] 5. Connecting rod; 6. Magnetic attraction assembly; 601. Magnet. DETAILED DESCRIPTION

[0034] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0035] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0037] Example 1

[0038] like Figure 1 As shown, an extruder mold changing device includes: a bracket 1, a moving wheel 2 connected to the bottom of the bracket 1, a lifting component 3 installed on the bracket 1, a flip component 4 installed on the lifting component 3, a connecting rod 5 connected to the flip component 4 at one end, and a magnetic suction component 6 connected to the other end of the connecting rod 5. The lifting component 3 drives the flip component 4 to lift and lower, the magnetic suction component 6 is used to absorb the mold, and the flip component 4 drives the connecting rod 5 to flip and then remove the mold.

[0039] When the device is in the initial state, the lifting component 3 is in the descending state, and the connecting rod 5 is in the vertical downward state. When the mold needs to be removed, the lifting component 3 drives the flip component 4, the connecting rod 5 and the magnetic suction component 6 to rise together, and the flip component 4 drives the connecting rod 5 to flip, so that the connecting rod 5 is flipped from the vertical downward state to the horizontal forward state, and then the entire device is moved by the moving wheel 2, so that the magnetic suction component 6 is in contact with the mold on the extruder, and then the magnetic suction component 6 attracts the mold, and then the mold is manually removed. After the mold is disassembled, the mold is removed by the moving wheel 2, and then the flip component 4 drives the connecting rod 5 to reset, and the lifting component 3 drives the mold to descend and place it in the specified position, and then the device is moved to the new mold by the moving wheel 2, the magnetic suction component 6 attracts the new mold, the lifting component 3 rises, and the flip component 4 drives the connecting rod 5 to flip to a horizontal state, and then the mold is moved to the extruder by the moving wheel 2, and then the mold is installed manually to complete the mold replacement. When disassembling the mold, the device can temporarily fix the mold to avoid the risk of the mold falling. After the mold is disassembled, the device will suck the mold and put it on the ground, without manually removing the mold, to avoid the mold falling, to avoid the mold scalding workers, and reduce the labor intensity of workers. When replacing a new mold, the device can also assist workers in lifting and fixing the mold, which can also reduce the labor intensity of workers and ensure the safety of workers. Further, the magnetic suction component 6 can use a general magnet 601 or an electromagnet 601 to absorb the mold.

[0040] Furthermore, a plurality of cross beams and longitudinal beams for strengthening the structure are provided at the bottom of the bracket 1 .

[0041] The beneficial effects of this embodiment are as follows: the magnetic component 6 can replace the workers to hold the mold during operation, thus preventing the workers from being scalded by the high temperature of the mold and ensuring the workers' work safety; the lifting component 3, the flip component 4 and the magnetic component 6 cooperate to lift or remove the mold, thus reducing the labor intensity of the workers; the mold is moved by the moving wheels 2, which can also save the workers' physical strength.

[0042] Example 2

[0043] like Figure 1-3 As shown, based on Example 1, the difference from Example 1 is that:

[0044] The lifting assembly 3 includes a lifting platform 301 slidably connected to the bracket 1, a first screw 302 rotatably connected to the lifting platform 301, and a first driving unit connected to the first screw 302, wherein the first driving unit drives the first screw 302 to rotate, and the first screw 302 is threadedly connected to the bracket 1. The first driving unit includes a first hand wheel 303 rotatably connected to the bracket 1, the first hand wheel 303 is threadedly connected to the first screw 302, and the first hand wheel 303 is axially fixed relative to the bracket 1. The magnetic attraction assembly 6 includes a magnet 601 connected to the connecting rod 5.

[0045] The first driving unit drives the first screw 302 to rotate, and the first screw 302 is lifted and lowered relative to the bracket 1, thereby driving the lifting platform 301 to lift and lower. The first driving unit can use a rotating motor, and the rotating motor is installed on the lifting platform 301, and the rotating end of the rotating motor passes through the lifting platform 301 and is connected to the first screw 302, which can drive the first screw 302 to rotate. The first driving unit can also use other driving structures. Among them, the first screw 302 is preferably set to be fixed relative to the lifting platform 301 axially. The first hand wheel 303 drives the first screw 302 to lift and lower when it rotates forward and reversely. Using a hand wheel as a driving part saves costs, and the lifting height can be easily controlled, which is more suitable for workers. The use of magnets 601 in the magnetic suction component 6 can reduce costs. At the same time, it is necessary to select magnets 601 with high magnetic properties to prevent the mold from falling after the connecting rod 5 is flipped.

[0046] Furthermore, the lifting platform 301 is slidably connected to the bracket 1 through a plurality of round rods, and the bracket 1 is provided with a plurality of linear bearings connected to the round rods.

[0047] Furthermore, a plurality of cross beams for strengthening the structure are provided at the bottom of the lifting platform 301 .

[0048] The remaining features and working principles of this embodiment are consistent with those of Embodiment 1.

[0049] Example 3

[0050] like Figure 1-3 As shown, based on Example 1 or Example 2, Example 1 or Example 2 is further limited, and the difference is that:

[0051] The flip assembly 4 includes a sliding plate 401 slidably connected to the lifting platform 301, a second driving unit connected to the sliding plate 401, a rack 402 connected to the sliding plate 401, a fixing member 403 connected to the bracket 1, a rotating shaft 404 rotatably connected to the fixing member 403, a first gear 405 and a connecting block 406 respectively mounted on the rotating shaft 404, the second driving unit is used to drive the sliding plate 401 to reciprocate, the rack 402 drives the first gear 405 to rotate, and the connecting block 406 is connected to the connecting rod 5. The flip assembly 4 also includes a second gear 407 rotatably connected to the fixing member 403, the second gear 407 is meshed with the rack 402 and the first gear 405 at the same time, the rack 402 drives the second gear 407 to rotate and then drives the first gear 405 to rotate. The diameter of the second gear 407 is smaller than the diameter of the first gear 405. The second driving unit includes a second screw 408 rotatably connected to the sliding plate 401, a vertical plate 409 connected to the lifting platform 301, and a second hand wheel 410 rotatably connected to the vertical plate 409. The second hand wheel 410 is threadedly connected to the second screw 408. The second screw 408 is axially fixed relative to the sliding plate 401. The second hand wheel 410 is axially fixed relative to the vertical plate 409. The flip assembly 4 also includes a slide rail 411 connected to the lifting platform 301 and a slider 412 slidably connected to the slide rail 411. The sliding plate 401 is mounted on the slider 412. Racks 402 are connected to both sides of the sliding plate 401. The lifting platform 301 is connected to two fixing members 403. The two fixing members 403 are rotatably connected to the second gears 407 respectively. The rotating shaft 404 is rotatably connected to the two fixing members 403 at the same time. Two first gears 405 are mounted on the rotating shaft 404. The connecting block 406 is located between the two first gears 405.

[0052] The second driving unit drives the sliding plate 401 to move back and forth, the sliding plate 401 drives the rack 402 to move, the rack 402 drives the first gear 405 to rotate, the first gear 405 and the connecting block 406 are fixedly connected to the rotating shaft 404, thereby driving the connecting block 406 to rotate, thereby driving the connecting rod 5 to rotate, and realizing the flipping of the connecting rod 5. The rack 402 can directly mesh with the first gear 405, or it can drive other gears to rotate, and then indirectly drive the first gear 405 to rotate. The second driving unit can realize reciprocating linear drive, and can adopt a linear push rod or other driving structure. The rack 402 is meshed with the second gear 407 alone, and the second gear 407 is meshed with the rack 402 and the first gear 405 at the same time, and then the movement of the rack 402 drives the first gear 405 to rotate. The second gear 407 can increase the distance between the rack 402 and the connecting block 406, which is convenient for the setting of the connecting block 406, and avoids the interference between the connecting block 406 and the lifting platform 301 when the connecting block 406 rotates. The second gear 407 can also be made equal to or smaller than the first gear 405, so that the second drive single cloud can be driven more labor-saving. Furthermore, the diameter of the second gear 407 is set to be smaller than the diameter of the first gear 405, so that the second drive single cloud can be driven more labor-saving. When the second hand wheel 410 rotates, it drives the second screw 408 to move, and then drives the sliding plate 401 to reciprocate. The second hand wheel 410 uses a hand wheel as a driving member to save costs and facilitate workers' operation. The sliding plate 401 is mounted on the slider 412 to move relative to the slide rail 411, and then move relative to the lifting platform 301. The slide rail 411 and the slider 412 are common and practical sliding components. The slide rail 411 and the slider 412 are provided to increase the smoothness of movement of the sliding plate 401 and reduce the sliding friction of the sliding plate 401. Two racks 402, two second gears 407 and two first gears 405 are provided for transmission, and the connecting block 406 is provided between the two first gears 405 to ensure structural stability and increase transmission effect.

[0053] The rest of the working principle and working process of this embodiment are consistent with those of Embodiment 1 or Embodiment 2.

[0054] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An extruder die changing device, characterized in that: include: A support (1), a moving wheel (2) connected to the bottom of the support (1), a lifting component (3) installed on the support (1), a flip component (4) installed on the lifting component (3), a connecting rod (5) connected to the flip component (4) at one end, and a magnetic suction component (6) connected to the other end of the connecting rod (5), wherein the lifting component (3) drives the flip component (4) to lift and lower, the magnetic suction component (6) is used to absorb the mold, and the flip component (4) drives the connecting rod (5) to flip and thereby remove the mold.

2. The extruder die changing device according to claim 1, characterized in that: The lifting assembly (3) comprises a lifting platform (301) slidably connected to the bracket (1), a first screw rod (302) rotatably connected to the lifting platform (301), and a first driving unit connected to the first screw rod (302), wherein the first driving unit drives the first screw rod (302) to rotate, and the first screw rod (302) is threadedly connected to the bracket (1).

3. The die changing device for an extruder according to claim 2, characterized in that: The first driving unit comprises a first hand wheel (303) rotatably connected to the bracket (1), the first hand wheel (303) is threadedly connected to the first screw rod (302), and the first hand wheel (303) is axially fixed relative to the bracket (1).

4. The die changing device for an extruder according to claim 2, characterized in that: The flip assembly (4) comprises a sliding plate (401) slidably connected to the lifting platform (301), a second driving unit connected to the sliding plate (401), a rack (402) connected to the sliding plate (401), a fixing member (403) connected to the bracket (1), a rotating shaft (404) rotatably connected to the fixing member (403), a first gear (405) and a connecting block (406) respectively mounted on the rotating shaft (404), wherein the second driving unit is used to drive the sliding plate (401) to reciprocate, the rack (402) drives the first gear (405) to rotate, and the connecting block (406) is connected to the connecting rod (5).

5. The die changing device for an extruder according to claim 4, characterized in that: The flip assembly (4) also includes a second gear (407) rotatably connected to the fixing member (403), and the second gear (407) is meshed with the rack (402) and the first gear (405) at the same time, and the rack (402) drives the second gear (407) to rotate and then drives the first gear (405) to rotate.

6. The die changing device for an extruder according to claim 5, characterized in that: The diameter of the second gear (407) is smaller than the diameter of the first gear (405).

7. The die changing device for an extruder according to claim 4, characterized in that: The second driving unit comprises a second screw rod (408) rotatably connected to the sliding plate (401), a vertical plate (409) connected to the lifting platform (301), and a second hand wheel (410) rotatably connected to the vertical plate (409); the second hand wheel (410) is threadedly connected to the second screw rod (408); the second screw rod (408) is axially fixed relative to the sliding plate (401); and the second hand wheel (410) is axially fixed relative to the vertical plate (409).

8. The die changing device for an extruder according to claim 4, characterized in that: The flip assembly (4) further comprises a slide rail (411) connected to the lifting platform (301) and a slider (412) slidably connected to the slide rail (411), and the slide plate (401) is mounted on the slider (412).

9. The die changing device for an extruder according to claim 5, characterized in that: The sliding plate (401) is connected to the racks (402) on both sides, the lifting platform (301) is connected to the two fixing members (403), the two fixing members (403) are respectively rotatably connected to the second gear (407), the rotating shaft (404) is rotatably connected to the two fixing members (403), the rotating shaft (404) is sleeved with two first gears (405), and the connecting block (406) is located between the two first gears (405).

10. An extruder die changing device according to any one of claims 1 to 9, characterized in that: The magnetic attraction component (6) comprises a magnet (601) connected to the connecting rod (5).

Images