Injection molding machine dynamic damping device based on magnetorheological fluid and control method thereof

Abstract

The invention discloses an injection molding machine dynamic damping device based on magnetorheological fluid and a control method thereof, and relates to the technical field of injection molding machine accessories. The invention discloses an injection molding machine dynamic damping device based on magnetorheological fluid and a control method thereof.The injection molding machine dynamic damping device comprises a main body assembly and a support assembly, the main body assembly comprises a damping mechanism, the damping mechanism comprises a main bin, the interior of the main bin is fixedly connected with a first partition plate, the outer layer of the first partition plate is fixedly wound with a first electromagnetic coil, and the inner layer of the first partition plate is filled with the magnetorheological fluid; a hollow first inner plug is inserted in the inner layer of the first partition plate in a matched mode, a first supporting column is fixedly connected to the middle of the lower surface of the first inner plug, a foot plate is connected to the lower end of the first supporting column, an inductor is embedded in the main bin, and sliding plates are fixedly connected to the two sides of the outer wall of the main bin correspondingly; according to the injection molding machine dynamic damping device based on the magnetorheological fluid and the control method thereof, the main body assembly is accurately slid in for installation, and the installation convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machine accessories, in particular to a dynamic shock absorbing device of an injection molding machine based on magnetorheological fluid and a control method thereof. Background Art

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the primary molding equipment used to create various shapes of plastic products from thermoplastics or thermosetting plastics using plastic molding molds. They are available in vertical, horizontal, and all-electric models. They heat the plastic and apply high pressure to the molten plastic, causing it to be ejected and fill the mold cavity.

[0003] During the daily operation of injection molding machines, high-frequency vibrations often occur. This vibration not only directly affects the quality of the molded parts, leading to an increase in defects in the finished product, but also causes severe noise pollution and deteriorates the working environment. Furthermore, continuous and strong vibrations accelerate the wear of internal components, shortening the machine's service life and increasing maintenance costs.

[0004] The patent with publication number CN118532582A discloses a machine foot auxiliary shock-absorbing device for an injection molding machine and a method of using the same. The injection molding machine includes a chassis and a machine foot. The shock-absorbing device includes a shock-absorbing body, which includes: a base, the base has a first oil storage chamber and a first working chamber; the first working chamber has an external window; a lifting block, the lifting block is located in the first working chamber, the lifting block extends through the external window and contacts the chassis; an oil inlet circuit, the oil inlet circuit connects the first oil storage chamber and the first working chamber, and is used to transfer hydraulic oil from the first oil storage chamber to the first working chamber, so that the lifting block The block moves upward and lifts up the base frame; the inside of the lifting block is provided with a second oil storage chamber, a second working chamber and an air chamber in sequence; a damping valve piston is provided between the second oil storage chamber and the second working chamber, an isolation piston is provided between the second working chamber and the air chamber, and a piston rod is provided on the damping valve piston; the second oil storage chamber and the first working chamber are connected, and one end of the piston rod is connected to the bottom end of the first working chamber; when the injection molding machine vibrates in the vertical direction, the base frame and the lifting block move up and down, and the hydraulic oil inside the shock-absorbing body will flow between different chambers, generating a damping effect, thereby achieving a shock-absorbing effect.

[0005] The above technical solution requires that the device be installed on the machine foot of the injection molding machine, so additional lifting equipment is required to lift the injection molding machine for installation, and the device itself needs to be connected to the machine foot of the injection molding machine through firmware. Therefore, without suitable tools, it will be very difficult to install and disassemble the device. Therefore, there is an urgent need for a dynamic shock absorption device for an injection molding machine based on magnetorheological fluid and a control method thereof to solve the above-mentioned problems. Summary of the Invention

[0006] The object of the present invention is to provide a dynamic vibration damping device for an injection molding machine based on magnetorheological fluid and a control method thereof, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a dynamic shock absorbing device for an injection molding machine based on magnetorheological fluid, comprising a main body component and a bracket component for assisting in the installation of the main body component;

[0008] The main assembly includes a shock-absorbing mechanism, which includes a hollow main compartment, a first partition fixedly connected to the interior of the main compartment, the first partition dividing the interior space of the main compartment into an inner layer and an outer layer, a first electromagnetic coil fixedly wound around the outer layer of the first partition, and a magnetorheological fluid filled in the inner layer of the first partition;

[0009] The inner layer of the first partition is adapted to be plugged with a hollow first inner plug, the middle portion of the lower surface of the first inner plug is fixedly connected to a first support, the lower end of the first support passes through the main compartment and is fixedly connected to a foot plate;

[0010] A sensor for sensing vibration is fixedly embedded on the upper surface of the main compartment;

[0011] Slide plates are fixedly connected to both sides of the outer wall of the main compartment;

[0012] The bracket assembly includes a bracket mechanism, a push arm mechanism and a hand lever mechanism;

[0013] The bracket mechanism includes a U-shaped support clamp, the closed end of the support clamp is fixedly connected to a connecting rod, the ends of the connecting rod are respectively fixedly connected to shaft bodies, and the ends of the shaft bodies are movably connected to arc-shaped rocker arms through bearings;

[0014] The end of the rocker arm is provided with a push arm mechanism.

[0015] As a preferred technical solution of the present invention, the side wall of the first partition is fixedly connected with a through pipe that passes through the main compartment;

[0016] The auxiliary compartment is fixedly connected to the side wall of the main compartment, and a second partition connected to the through pipe is fixedly connected to the interior of the auxiliary compartment, the second partition dividing the interior space of the auxiliary compartment into an inner layer and an outer layer. A second electromagnetic coil is fixedly wound around the outer layer of the second partition, and a magnetorheological fluid is filled in the inner layer of the second partition.

[0017] The inner layer of the second partition is adapted to be plugged with a hollow second inner plug, the middle of the surface of the second inner plug is fixedly connected to a second pillar, and one end of the second pillar passes through the auxiliary warehouse and is fixedly connected to a support sleeve.

[0018] As a preferred technical solution of the present invention, elastic washers are fixedly embedded in the lower surface of the foot plate at equal intervals and evenly.

[0019] As a preferred technical solution of the present invention, a foot sleeve mechanism is provided above the shock absorbing mechanism, and the foot sleeve mechanism includes a chuck fixedly connected to the main bin, a sleeve block is fixedly connected to the middle part of the upper surface of the chuck, and a foot sleeve adapted to the sleeve block is fixedly connected to the upper surface of the chuck, and the foot sleeve is adapted to be connected to the machine foot of the injection molding machine.

[0020] As a preferred technical solution of the present invention, a first gasket is fixedly embedded in the bottom plate of the injection molding machine where the support clamp is attached;

[0021] The end of the rocker arm is fixedly embedded with a second gasket, and the end of the rocker arm is penetrated by a sliding hole.

[0022] As a preferred technical solution of the present invention, the push arm mechanism includes a bottom rod, both ends of the bottom rod are provided with a first screw hole, and the two ends of the bottom rod are respectively provided with a matching wheel assembly through the first screw hole, and each matching wheel assembly includes a rotating wheel, and the central axis of the rotating wheel is movably connected to a wheel axle through a bearing, and the end of the wheel axle extends out of the rotating wheel, and the inner end of the wheel axle is provided with a thread, and the matching wheel assembly is screwed into the first screw hole through the thread;

[0023] A second screw hole is formed through the middle of the bottom rod, a stud is threadedly connected to the second screw hole, and one end of the stud extends out of the bottom rod and is fixedly connected to a third gasket.

[0024] As a preferred technical solution of the present invention, the two end sides of the bottom rod are respectively fixedly connected with push arms adapted to be inserted through the sliding holes, and the ends of the push arms are fixedly connected with clamping blocks;

[0025] A stop bar for limiting position is fixedly sleeved on the outer side of one end of the push arm close to the clamping block;

[0026] A positioning arm that fits the rocker arm is provided on one side opposite to the two push arms, one end of the positioning arm is fixedly connected to the bottom rod, and the other end of the positioning arm is bent and fixedly connected to the end of the push arm;

[0027] A positioning groove adapted to fit the plug-in slide is provided on the middle portion of the surface of the positioning arm facing away from the push arm.

[0028] As a preferred technical solution of the present invention, the two clamping blocks are commonly plugged with a hand lever mechanism, the hand lever mechanism comprises a hand lever adapted to be plugged into the clamping block, one end of the hand lever is fixedly sleeved with a socket;

[0029] The support sleeve is adapted to receive the handle bar.

[0030] A control method for a dynamic vibration damping device of an injection molding machine based on magnetorheological fluid, the steps of which are as follows:

[0031] S1: Push the bracket assembly against the ground like the foot of the injection molding machine, so that the first gasket is clamped at the junction of the foot of the injection molding machine and its bottom plate;

[0032] S2: Install the hand lever mechanism synchronously into the two blocks, use the bottom rod to form a fulcrum, and the push arm to form a lever, and push the hand lever mechanism to tilt the injection molding machine;

[0033] S3: After the injection molding machine is tilted up, push the push arm mechanism horizontally under the machine foot of the injection molding machine;

[0034] S4: Slide the main assembly into the foot of the injection molding machine along the positioning groove, and make the foot cover fit on the bottom of the foot of the injection molding machine;

[0035] S5: Adjust the studs so that the third gasket fits the main compartment, and adjust the support sleeve so that it fits the hand lever to complete the installation;

[0036] S6: Control the first electromagnetic coil and the second electromagnetic coil to not generate a magnetic field, so that the magnetorheological fluid of the main component exhibits low-viscosity Newtonian fluid characteristics. At this time, the damping force of the main component is small, allowing the components of the injection molding machine to vibrate freely to a certain extent;

[0037] S7: When the sensor detects a large vibration of the injection molding machine, it will pass corresponding current through the first and second electromagnetic coils according to the amplitude, frequency and other parameters of the vibration to generate a magnetic field. Under the action of the strong magnetic field, the tiny magnetic particles in the magnetorheological fluid will polarize and form a chain structure, making the liquid exhibit high viscosity and low fluidity, thereby increasing the damping force of the main component and effectively suppressing the vibration of the injection molding machine.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] (1) A dynamic shock absorbing device for an injection molding machine based on magnetorheological fluid and a control method thereof, wherein a main body component is accurately slid under the machine foot of the injection molding machine by a slide plate, thereby improving installation convenience.

[0040] (2) A dynamic shock absorbing device for an injection molding machine based on magnetorheological fluid and a control method thereof, wherein the hand lever mechanisms on the same side are connected uniformly through a socket, so that the push arm mechanisms of the bracket assembly on the same side can be simultaneously pushed under the machine foot of the injection molding machine at one time, and the pushing operation is convenient, thereby improving the installation efficiency.

[0041] (3) A dynamic shock absorbing device for an injection molding machine based on magnetorheological fluid and a control method thereof, wherein the wheel assembly is screwed to both ends of the bottom rod, and the wheel assembly can be unscrewed after the main assembly is installed in place, so that the wheel assembly can be reused to reduce the cost of use.

[0042] (4) A dynamic shock absorbing device for an injection molding machine based on magnetorheological fluid and a control method thereof, wherein the position of the second inner plug in the second partition is adjusted so that the support sleeve is connected to the hand rod, and the stud is further adjusted so that the third gasket fits the main compartment. At this time, the movement of the connection limit bracket assembly between the main body assembly and the injection molding machine foot forms a self-locking structure, thereby improving the connection stability.

[0043] (5) A dynamic shock absorption device for an injection molding machine based on magnetorheological fluid and a control method thereof can dynamically change the damping force of the main component according to the actual vibration conditions of the injection molding machine by adjusting the current intensity of the first electromagnetic coil and the second electromagnetic coil in real time, thereby improving the shock absorption effect.

[0044] (6) A dynamic shock absorbing device for an injection molding machine based on magnetorheological fluid and a control method thereof, which reduces the rigid connection of the firmware, thereby reducing the impact of vibration on the rigid connection of the firmware and improving the service life.

[0045] (7) A dynamic shock absorbing device for an injection molding machine based on magnetorheological fluid and a control method thereof, wherein the installation position of the main component has already been accurately located, thereby improving the connection accuracy of the main component and improving the installation efficiency.

[0046] (8) A dynamic shock absorption device for an injection molding machine based on magnetorheological fluid and a control method thereof, wherein the main chamber of the main assembly and the first inner plug cooperate to achieve shock absorption in the Z-axis direction, the auxiliary chamber and the second inner plug cooperate to achieve shock absorption in the Y-axis direction through the support of the third gasket, and the spring pad at the bottom of the foot plate is designed to achieve shock absorption in the X-axis direction, thereby achieving a multi-directional shock absorption effect and improving the comprehensiveness of shock absorption.

[0047] (9) A dynamic shock absorption device for an injection molding machine based on magnetorheological fluid and a control method thereof are provided. The device is installed by adapting to a single machine foot of the injection molding machine, and the installation orientation of each machine foot can be adjusted. By the components on each machine foot cooperate with each other, all-round shock absorption is achieved for the entire injection molding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic diagram of the installation position of the present invention;

[0049] Figure 2 It is a structural schematic diagram of the present invention;

[0050] Figure 3 This is a schematic diagram of the first state of the bracket assembly of the present invention;

[0051] Figure 4 This is a schematic diagram of the second state of the bracket assembly of the present invention;

[0052] Figure 5 Schematic diagram of the bracket mechanism of the present invention;

[0053] Figure 6 Schematic diagram of the push arm mechanism of the present invention;

[0054] Figure 7 For the present invention Figure 6 A magnified schematic diagram of point A;

[0055] Figure 8 Schematic diagram of the stud of the present invention;

[0056] Figure 9 This is a schematic diagram of the hand lever mechanism of the present invention;

[0057] Figure 10 This is a schematic diagram of the main components of the present invention;

[0058] Figure 11 Schematic diagram of the shock absorbing mechanism of the present invention;

[0059] Figure 12 This is a schematic diagram of the interior of the shock absorbing mechanism of the present invention;

[0060] Figure 13 This is a schematic diagram of the bottom of the foot tray of the present invention;

[0061] Figure 14 It is a schematic diagram of the foot cover mechanism of the present invention.

[0062] In the figure: 1. Bracket mechanism; 101. Support clamp; 102. First gasket; 103. Connecting rod; 104. Shaft; 105. Rocker arm; 106. Second gasket; 107. Slide hole; 2. Push arm mechanism; 201. Bottom rod; 202. First screw hole; 203. Rotating wheel; 204. Axle; 205. Thread; 206. Second screw hole; 207. Stud; 208. Third gasket; 209. Push arm; 210. Block; 211. Stop bar; 212. Positioning arm; 213. Positioning slot; 3. Hand lever mechanism; 301 , hand lever; 302, connecting sleeve; 4, shock absorbing mechanism; 401, main compartment; 402, first partition; 403, through pipe; 404, first electromagnetic coil; 405, auxiliary compartment; 406, second partition; 407, second electromagnetic coil; 408, first inner plug; 409, first pillar; 410, foot plate; 411, spring washer; 412, second inner plug; 413, second pillar; 414, support sleeve; 415, sensor; 416, slide plate; 5, foot sleeve mechanism; 501, chuck; 502, sleeve block; 503, foot sleeve. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0064] Example: See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 10 、 Figure 11 、 Figure 12 A dynamic shock-absorbing device for an injection molding machine based on magnetorheological fluid comprises a main body component and a bracket component for assisting in mounting the main body component. The main body component is placed between the machine foot of the injection molding machine and the ground to play a shock-absorbing role.

[0065] The main assembly includes a shock absorbing mechanism 4, which includes a hollow main compartment 401. A first partition 402 is fixedly connected to the interior of the main compartment 401. The first partition 402 divides the interior space of the main compartment 401 into an inner and outer layer. A first electromagnetic coil 404 is fixedly wound around the outer layer of the first partition 402, and a magnetorheological fluid is filled in the inner layer of the first partition 402.

[0066] A hollow first inner plug 408 is adapted to be inserted into the inner layer of the first partition 402. A first support 409 is fixedly connected to the middle portion of the lower surface of the first inner plug 408. The lower end of the first support 409 passes through the main compartment 401 and is fixedly connected to a foot plate 410.

[0067] The main chamber 401 controls the movement of the first inner plug 408 through the magnetorheological fluid therein, thereby alleviating vibration in the Z-axis direction;

[0068] A sensor 415 for sensing vibration is fixedly embedded on the upper surface of the main compartment 401;

[0069] Slide plates 416 are fixedly connected to both sides of the outer wall of the main compartment 401;

[0070] The bracket assembly includes a bracket mechanism 1, a push arm mechanism 2 and a hand lever mechanism 3;

[0071] The bracket mechanism 1 includes a U-shaped support clamp 101, which is clamped onto the part where the machine foot of the injection molding machine meets its base plate. The closed end of the support clamp 101 is fixedly connected to a connecting rod 103. The ends of the connecting rod 103 are fixedly connected to shaft bodies 104 on both sides. The ends of the shaft body 104 are movably connected to arc-shaped rocker arms 105 through bearings.

[0072] The end of the rocker arm 105 is installed with a push arm mechanism 2, and the injection molding machine can be tilted by the cooperation of the push arm mechanism 2 and the bracket mechanism 1.

[0073] See also Figure 12 The side wall of the first partition 402 is fixedly connected with a through pipe 403 that passes through the main compartment 401;

[0074] The side wall of the main compartment 401 is fixedly connected to the auxiliary compartment 405. The interior of the auxiliary compartment 405 is fixedly connected to a second partition 406 that is in communication with the through-tube 403. The second partition 406 divides the interior space of the auxiliary compartment 405 into two layers, an inner layer and an outer layer. A second electromagnetic coil 407 is fixedly wound around the outer layer of the second partition 406, and the inner layer of the second partition 406 is filled with magnetorheological fluid.

[0075] A hollow second inner plug 412 is adapted to be inserted into the inner layer of the second partition 406. A second support 413 is fixedly connected to the middle of the surface of the second inner plug 412. One end of the second support 413 passes through the auxiliary chamber 405 and is fixedly connected to a support sleeve 414.

[0076] The auxiliary chamber 405 controls the movement of the second inner plug 412 through the magnetorheological fluid therein, thereby alleviating vibration in the X-axis direction.

[0077] See also Figure 13 The lower surface of the foot plate 410 is evenly and evenly fixed with spring pads 411. When it shakes in the Y-axis direction, the pulling force between the foot plate 410 and the spring pads 411 coincides with the shaking direction, which can absorb part of the shaking energy, thereby reducing its vibration in the Y-axis direction.

[0078] See also Figure 10 、 Figure 14 A foot sleeve mechanism 5 is provided above the shock absorbing mechanism 4. The foot sleeve mechanism 5 includes a chuck 501 fixedly connected to the main bin 401. A sleeve block 502 is fixedly connected to the middle part of the upper surface of the chuck 501. A foot sleeve 503 adapted to the sleeve block 502 is fixedly connected to the upper surface of the chuck 501. The foot sleeve 503 is made of rubber material and is adapted to be fitted on the machine foot of the injection molding machine.

[0079] See also Figure 5 The support clip 101 is fixedly embedded with a first gasket 102 at the bottom plate of the injection molding machine, and the first gasket 102 is made of rubber material;

[0080] A second gasket 106 is fixedly embedded at the end of the rocker arm 105 . The second gasket 106 is made of rubber material. A sliding hole 107 is formed through the end of the rocker arm 105 .

[0081] See also Figure 6 、 Figure 8The push arm mechanism 2 includes a bottom rod 201, and first screw holes 202 are provided at both ends of the bottom rod 201. Wheel assemblies are respectively installed at both ends of the bottom rod 201 through the first screw holes 202. Each wheel assembly includes a rotating wheel 203. The outer diameter of the rotating wheel 203 is larger than the outer diameter of the bottom rod 201. A wheel shaft 204 is movably connected to the central axis of the rotating wheel 203 through a bearing. The end of the wheel shaft 204 extends out of the rotating wheel 203. A thread 205 is provided on the inner end of the wheel shaft 204. The wheel assembly is screwed into the first screw hole 202 through the thread 205.

[0082] A second screw hole 206 is provided through the middle of the bottom rod 201, and a stud 207 is threaded into the second screw hole 206. One end of the stud 207 extends out of the bottom rod 201 and is fixedly connected to a third gasket 208. By rotating the stud 207, the third gasket 208 is made to fit the main compartment 401, thereby reducing vibration in the Y-axis direction.

[0083] See also Figure 6 、 Figure 7 , the two end sides of the bottom rod 201 are respectively fixedly connected with push arms 209 adapted to be inserted into the sliding holes 107, and the ends of the push arms 209 are fixedly connected with a clamping block 210;

[0084] A stop bar 211 for limiting is fixedly sleeved on the outer side of one end of the push arm 209 close to the clamping block 210;

[0085] A positioning arm 212 is provided on one side opposite to the two push arms 209 and fits the rocker arm 105. One end of the positioning arm 212 is fixedly connected to the bottom rod 201, and the other end of the positioning arm 212 is bent and fixedly connected to the end of the push arm 209.

[0086] A positioning groove 213 adapted to fit the inserting slide 416 is defined in the middle of the surface of the positioning arm 212 facing away from the push arm 209 .

[0087] See also Figure 2 、 Figure 3 、 Figure 9 The two clamping blocks 210 are commonly plugged with a hand lever mechanism 3, and the hand lever mechanism 3 includes a hand lever 301 adapted to be plugged into the clamping block 210, and one end of the hand lever 301 is fixedly sleeved with a socket 302;

[0088] The support sleeve 414 is adapted to fit the handle bar 301 .

[0089] 9. A control method for a dynamic vibration damping device of an injection molding machine based on magnetorheological fluid according to claim 8, comprising the following steps:

[0090] S1: Push the bracket assembly against the ground like the foot of the injection molding machine, so that the first gasket 102 is clamped at the junction of the foot of the injection molding machine and its bottom plate;

[0091] S2: The hand lever mechanism 3 is synchronously clamped into the two clamping blocks 210, and the bottom rod 201 forms a fulcrum, and the push arm 209 forms a lever, and the hand lever mechanism 3 is pushed to tilt the injection molding machine;

[0092] S3: After the injection molding machine is tilted, push the push arm mechanism 2 horizontally into the foot of the injection molding machine;

[0093] S4: Slide the main body assembly into the bottom of the injection molding machine along the positioning groove 213, and make the foot cover 503 sleeved on the bottom of the injection molding machine foot;

[0094] S5: Adjust the stud 207 so that the third gasket 208 fits the main compartment 401, and adjust the support sleeve 414 so that it fits the hand lever 301 to complete the installation;

[0095] S6: Control the first electromagnetic coil 404 and the second electromagnetic coil 407 to not generate a magnetic field. The magnetorheological fluid of the main assembly exhibits low-viscosity Newtonian fluid characteristics. At this time, the damping force of the main assembly is small, allowing the components of the injection molding machine to vibrate freely to a certain extent.

[0096] S7: When the sensor 415 detects that the injection molding machine has a large vibration, a corresponding current is passed through the first electromagnetic coil 404 and the second electromagnetic coil 407 according to the amplitude, frequency and other parameters of the vibration to generate a magnetic field. Under the action of the strong magnetic field, the tiny magnetic particles in the magnetorheological fluid will polarize and form a chain structure, making the liquid present a high viscosity and low fluidity state, thereby increasing the damping force of the main component and effectively suppressing the vibration of the injection molding machine.

[0097] The working principle of the present invention is as follows:

[0098] The bracket assembly can be installed before the main body assembly. Insert the support clip 101 into the connection between the machine foot of the injection molding machine and its base plate, and then pull the lever mechanism 3 outward so that the bottom rod 201 is filled under the injection molding machine with the shaft body 104 as the axis, thereby lifting the injection molding machine, and pushing the push arm mechanism 2 along the sliding hole 107 so that the push arm mechanism 2 is cushioned under the machine foot of the injection molding machine. Then, the main body assembly can be accurately slid into the bottom of the machine foot of the injection molding machine through the slide plate 416 along the positioning groove 213 opened on the positioning arm 212 for installation, thereby improving the convenience of installation.

[0099] The two hand lever mechanisms 3 can be assembled through the adjacent connecting sleeves 302. The machine feet of the injection molding machine are mostly distributed around the bottom plate. The hand lever mechanisms 3 on the same side can be uniformly connected through the connecting sleeves 302, so that the push arm mechanisms 2 of the bracket assembly on the same side can be simultaneously pushed under the machine feet of the injection molding machine at one time. The pushing operation is convenient and the installation efficiency is improved.

[0100] By screwing the matching wheel assembly at both ends of the bottom rod 201, the matching wheel assembly can be screwed off after the main assembly is installed in place, so the matching wheel assembly can be reused to reduce the use cost.

[0101] After the main assembly is installed in place, wrap the foot of the injection molding machine in the foot sleeve 503, adjust the position of the first inner plug 408 in the first partition 402, so that the foot of the injection molding machine is stably clamped between the main assembly and the bracket mechanism 1, and then adjust the position of the second inner plug 412 in the second partition 406 so that the support sleeve 414 is sleeved on the hand rod 301, and then adjust the stud 207 so that the third gasket 208 fits the main compartment 401. At this time, the movement of the connection limit bracket assembly between the main assembly and the foot of the injection molding machine forms a self-locking structure, which improves the connection stability.

[0102] Due to the unique properties of magnetorheological fluid, in the absence of a magnetic field, it exhibits the characteristics of a low-viscosity Newtonian fluid. At this point, the damping force of the main assembly is low, allowing a certain degree of free vibration of the injection molding machine components. When sensor 415 detects significant vibration in the injection molding machine, it applies a corresponding current to the first electromagnetic coil 404 and the second electromagnetic coil 407 based on parameters such as the vibration amplitude and frequency, generating a magnetic field. Under the influence of a strong magnetic field, the tiny magnetic particles in the magnetorheological fluid polarize and form a chain-like structure, giving the liquid a high-viscosity, low-fluidity state. This increases the damping force of the main assembly and effectively suppresses the vibration of the injection molding machine. By adjusting the current intensity of the first electromagnetic coil 404 and the second electromagnetic coil 407 in real time, the damping force of the main assembly can be dynamically adjusted according to the actual vibration of the injection molding machine, improving the shock absorption effect.

[0103] The main body component is connected to the machine foot of the injection molding machine through the foot sleeve 503 of the foot sleeve mechanism 5, and cooperates with the bracket component to clamp it from the upper and lower sides of the machine foot of the injection molding machine, thereby reducing the rigid connection of the firmware, and then reducing the impact of vibration on the rigid connection of the firmware, and improving the service life.

[0104] By first docking the bracket assembly with the injection molding machine foot and then sliding the main assembly into the positioning groove 213, the installation position of the main assembly has been accurately positioned, thereby improving the connection accuracy of the main assembly and improving the installation efficiency.

[0105] Through the cooperation of the main compartment 401 and the first inner plug 408 of the main component, shock absorption in the Z-axis direction can be achieved. Through the cooperation of the auxiliary compartment 405 and the second inner plug 412 and the fitting support of the third gasket 208, shock absorption in the Y-axis direction can be achieved. At the same time, through the design of the spring pad 411 at the bottom of the foot plate 410, shock absorption in the X-axis direction can be achieved, achieving a multi-directional shock absorption effect and improving the comprehensiveness of shock absorption.

[0106] By adapting to the single machine foot of the injection molding machine for installation, the installation position of each machine foot can be adjusted, and the components on each machine foot cooperate with each other to achieve all-round shock absorption for the entire injection molding machine.

[0107] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic vibration damping device for an injection molding machine based on magnetorheological fluid, comprising a main assembly and a bracket assembly for assisting in mounting the main assembly; The main assembly comprises a shock absorbing mechanism (4), the shock absorbing mechanism (4) comprising a hollow main compartment (401), a first partition (402) fixedly connected to the interior of the main compartment (401), the first partition (402) dividing the interior space of the main compartment (401) into an inner layer and an outer layer, a first electromagnetic coil (404) fixedly wound around the outer layer of the first partition (402), and a magnetorheological fluid filled in the inner layer of the first partition (402); the characteristics are: The inner layer of the first partition (402) is adapted to be plugged with a hollow first inner plug (408), the middle portion of the lower surface of the first inner plug (408) is fixedly connected to a first support (409), the lower end of the first support (409) passes through the main compartment (401) and is fixedly connected to a foot plate (410); A sensor (415) for sensing vibration is fixedly embedded on the upper surface of the main compartment (401); Slide plates (416) are fixedly connected to both sides of the outer wall of the main compartment (401); The bracket assembly comprises a bracket mechanism (1), a push arm mechanism (2) and a hand lever mechanism (3); The bracket mechanism (1) comprises a U-shaped bracket (101), the closed end of the bracket (101) is fixedly connected to a connecting rod (103), the ends of the connecting rod (103) are respectively fixedly connected to shaft bodies (104), and the ends of the shaft bodies (104) are movably sleeved with arc-shaped rocker arms (105) via bearings; The end of the rocker arm (105) is equipped with a push arm mechanism (2).

2. The dynamic shock absorption device for an injection molding machine based on magnetorheological fluid according to claim 1, characterized in that: The side wall of the first partition (402) is fixedly connected to a through pipe (403) that passes through the main compartment (401); The side wall of the main compartment (401) is fixedly connected to an auxiliary compartment (405); the interior of the auxiliary compartment (405) is fixedly connected to a second partition (406) in communication with the through pipe (403); the second partition (406) divides the interior space of the auxiliary compartment (405) into two layers, an inner layer and an outer layer; a second electromagnetic coil (407) is fixedly wound around the outer layer of the second partition (406); and a magnetorheological fluid is filled in the inner layer of the second partition (406); The inner layer of the second partition (406) is adapted to be plugged with a hollow second inner plug (412), the middle of the surface of the second inner plug (412) is fixedly connected with a second pillar (413), and one end of the second pillar (413) passes through the auxiliary warehouse (405) and is fixedly connected with a support sleeve (414).

3. The dynamic shock absorption device for an injection molding machine based on magnetorheological fluid according to claim 2, characterized in that: The lower surface of the foot plate (410) is evenly and evenly fixed with spring washers (411).

4. The dynamic vibration damping device for an injection molding machine based on magnetorheological fluid according to claim 3, characterized in that: A foot cover mechanism (5) is provided above the shock absorbing mechanism (4), and the foot cover mechanism (5) comprises a chuck (501) fixedly connected to the main bin (401), a cover block (502) fixedly connected to the middle of the upper surface of the chuck (501), and a foot cover (503) adapted to fit the cover block (502) fixedly connected to the upper surface of the chuck (501), and the foot cover (503) adapted to fit the machine foot of the injection molding machine.

5. The dynamic vibration damping device for an injection molding machine based on magnetorheological fluid according to claim 4, characterized in that: The support clip (101) is fixedly embedded with a first gasket (102) at a position where it contacts the bottom plate of the injection molding machine; A second gasket (106) is fixedly embedded at the end of the rocker arm (105), and a sliding hole (107) is provided through the end of the rocker arm (105).

6. The dynamic vibration damping device for an injection molding machine based on magnetorheological fluid according to claim 5, characterized in that: The push arm mechanism (2) comprises a bottom rod (201), both ends of the bottom rod (201) are provided with first screw holes (202), and both ends of the bottom rod (201) are respectively provided with matching wheel assemblies through the first screw holes (202), and each matching wheel assembly comprises a rotating wheel (203), a wheel shaft (204) is movably connected to the central axis of the rotating wheel (203) through a bearing, and the end of the wheel shaft (204) extends out of the rotating wheel (203), and a thread (205) is provided on the inner end of the wheel shaft (204), and the matching wheel assembly is screwed to the first screw hole (202) through the thread (205); A second screw hole (206) is provided through the middle of the bottom rod (201), a stud (207) is screwed into the second screw hole (206), and one end of the stud (207) extends out of the bottom rod (201) and is fixedly connected to a third gasket (208).

7. The dynamic vibration damping device for an injection molding machine based on magnetorheological fluid according to claim 6, characterized in that: The two end sides of the bottom rod (201) are respectively fixedly connected with push arms (209) adapted to be inserted into the sliding holes (107), and the ends of the push arms (209) are fixedly connected with clamping blocks (210); A stop bar (211) for limiting is fixedly sleeved on the outer side of one end of the push arm (209) close to the clamping block (210); A positioning arm (212) that fits the rocker arm (105) is provided on one side opposite to the two push arms (209), one end of the positioning arm (212) is fixedly connected to the bottom rod (201), and the other end of the positioning arm (212) is bent and fixedly connected to the end of the push arm (209); A positioning groove (213) adapted to fit the plug-in slide plate (416) is provided in the middle of the surface of the positioning arm (212) facing away from the push arm (209).

8. The dynamic vibration damping device for an injection molding machine based on magnetorheological fluid according to claim 7, characterized in that: The two clamping blocks (210) are commonly plugged with a hand lever mechanism (3), the hand lever mechanism (3) comprising a hand lever (301) adapted to be plugged into the clamping blocks (210), one end of the hand lever (301) being fixedly sleeved with a connecting sleeve (302); The support sleeve (414) is adapted to fit the handle bar (301).

9. The control method of the dynamic vibration damping device of an injection molding machine based on magnetorheological fluid according to claim 8, wherein the steps are as follows: S1: Push the bracket assembly against the ground like the foot of the injection molding machine, so that the first gasket (102) is clamped at the junction of the foot of the injection molding machine and its bottom plate; S2: Synchronously insert the hand lever mechanism (3) into the two clamping blocks (210), form a fulcrum through the bottom rod (201), and push the arm (209) to form a lever, and move the hand lever mechanism (3) to tilt the injection molding machine; S3: After the injection molding machine is tilted up, the push arm mechanism (2) is pushed horizontally under the machine foot of the injection molding machine; S4: Slide the main body assembly into the bottom of the machine foot of the injection molding machine along the positioning groove (213), and make the foot cover (503) sleeved on the bottom of the machine foot of the injection molding machine; S5: Adjust the stud (207) so that the third gasket (208) fits the main compartment (401), and adjust the support sleeve (414) so that it fits the hand lever (301) to complete the installation; S6: Controlling the first electromagnetic coil (404) and the second electromagnetic coil (407) to not generate a magnetic field, so that the magnetorheological fluid of the main component exhibits low-viscosity Newtonian fluid characteristics. At this time, the damping force of the main component is small, allowing the components of the injection molding machine to vibrate freely to a certain extent; S7: When the sensor (415) detects that the injection molding machine has a large vibration, a corresponding current is passed through the first electromagnetic coil (404) and the second electromagnetic coil (407) according to the amplitude, frequency and other parameters of the vibration to generate a magnetic field. Under the action of the strong magnetic field, the tiny magnetic particles in the magnetorheological fluid will polarize and form a chain structure, making the liquid present a high viscosity and low fluidity state, thereby increasing the damping force of the main component and effectively suppressing the vibration of the injection molding machine.

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