A machine foot auxiliary shock absorbing device for injection molding machine and use method thereof

Abstract

The present invention discloses a machine foot auxiliary shock absorbing device for an injection molding machine, which belongs to the technical field of injection molding machines. The shock absorbing body comprises: a base, wherein the base has a first oil storage chamber and a first working chamber; the first working chamber has an external window; a lifting block, which is located in the first working chamber, and the lifting block extends through the external window and contacts the base frame; the lifting block has a second oil storage chamber, a second working chamber and an air chamber in sequence; the shock absorbing device can successfully lift the injection molding machine off the ground, so that when it vibrates vertically, the hydraulic system inside the shock absorbing body can play a role and effectively reduce the vibration; at the same time, the horizontal shock absorbing component can also play an important role when it vibrates in the horizontal direction, thereby achieving an all-round shock absorbing effect, greatly improving the service life and working efficiency of the injection molding machine.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding machines, and in particular relates to a machine foot auxiliary shock absorbing device for an injection molding machine and a use method thereof. Background Art

[0002] As a core equipment widely used in the plastic processing industry, the injection molding machine heats and melts thermoplastic or thermosetting plastics, and accurately injects the melt into the mold, and forms plastic products of various predetermined shapes and sizes after cooling and solidification. Since its first entry into the market, the injection molding machine has quickly won the warm welcome and wide application of many plastic processing companies with its high molding efficiency, precise dimensional control and wide applicability. However, in the daily operation of the injection molding machine, high-frequency vibration problems often occur. This vibration phenomenon not only directly affects the quality of the injection molded parts, resulting in an increase in defects in the finished products, but also causes serious noise pollution and deteriorates the working environment; in addition, continuous and strong vibrations will accelerate the wear of internal parts of the equipment, shorten the service life of the machine, and increase maintenance costs.

[0003] In view of this, injection molding machine manufacturers have targetedly developed injection molding machine products with shock absorption functions, such as the application number CN202320554088.6 and the patent name of an injection molding machine with good shock absorption effect, striving to reduce the various problems caused by high-frequency vibration from the source. However, for old injection molding machines that have been put into use or injection molding machines that have been sold to customers, how to solve the existing vibration problems? In response to this situation, manufacturers have also designed and launched special injection molding machine buffer shock absorption devices to improve the operating performance of existing injection molding machines. However, it has been found in practice that the existing shock absorption devices have the following problems during application:

[0004] 1. For example, the product in the application number 202020592726.X and the patent name is a shock-absorbing frame for an injection molding machine. The working principle of this type of shock-absorbing device is to support the injection molding machine through the frame, and use the shock-absorbing technology inside the frame to reduce the vibration generated during the operation of the injection molding machine. Since injection molding machines generally have a large volume and heavy mass, a forklift is usually used for handling operations during the installation of the shock-absorbing frame. In this way, in order to achieve the shock-absorbing installation of the injection molding machine, the operating space required for the shock-absorbing frame, the injection molding machine and the forklift must be considered at the same time. Therefore, the space occupied by the entire construction process is relatively large, making this type of shock-absorbing device relatively cumbersome in actual use.

[0005] 2. When the injection molding machine performs normal production processes, such as mold opening, mold closing and injection molding, the vibrations it generates are often complex, multi-directional and irregular. However, most shock-absorbing devices on the market are mainly used to absorb and buffer vibrations in the vertical direction, and their ability to control vibrations in the horizontal and other directions is relatively weak. This means that even if a shock-absorbing frame is used, the failure to effectively suppress all kinds of vibrations in the operation of the injection molding machine may lead to unsatisfactory shock absorption effects, and even the risk of the injection molding machine shifting on the shock-absorbing frame.

[0006] 3. In order to solve the possible displacement problem of the injection molding machine on the shock-absorbing frame, some manufacturers will use fasteners such as bolts or rivets to firmly connect the injection molding machine to the shock-absorbing frame after placing it on the shock-absorbing frame; such as the product in the application number 202121923748.0 and the name of a buffer shock-absorbing device for an injection molding machine. Despite this, the shock-absorbing frame can indeed absorb and reduce the vibration generated by the injection molding machine to a certain extent, but continuous high-intensity vibration may still cause stress concentration at the connection between the two, and over time, the connection may become loose or even broken due to fatigue accumulation.

[0007] In summary, it is found that the prior art has at least the following technical problems:

[0008] How to comprehensively and effectively suppress the vibration of the injection molding machine in all directions and ensure the long-term stability of the connection between the shock absorbing device and the injection molding machine. Summary of the invention

[0009] In view of this, an object of the present invention is to provide a machine foot auxiliary shock absorbing device for an injection molding machine and a method of using the same, so as to solve the problems existing in the above-mentioned background technology.

[0010] In order to solve the above technical problems, the technical solution of the present invention is a machine foot auxiliary shock absorbing device for an injection molding machine, the injection molding machine includes a base frame and a machine foot, the shock absorbing device includes a shock absorbing body, and the shock absorbing body includes: a base, the base has a first oil storage chamber and a first working chamber inside; 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 base frame; an oil inlet circuit, the oil inlet circuit connects the first oil storage chamber and the first working chamber, and is used to conduct hydraulic oil from the first oil storage chamber to the first working chamber, so that the lifting block moves upward And the base frame is lifted up; 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 is communicated with the first working chamber, 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 to produce a damping effect, thereby achieving a shock-absorbing effect.

[0011] Preferably, the shock-absorbing body is divided into a first shock-absorbing body and a second shock-absorbing body, and the first shock-absorbing body and the second shock-absorbing body are respectively provided with a first limiting groove and a second limiting groove; the first shock-absorbing body and the second shock-absorbing body are arranged relative to each other, and the first limiting groove and the second limiting groove form a closed limiting hole; the limiting hole is used for limiting and fixing the machine foot.

[0012] Preferably, the oil inlet circuit comprises: a first channel, which is used to lead out the hydraulic oil in the first oil storage chamber; a second channel, which is used to introduce the hydraulic oil into the first working chamber; an operating unit, which has an oil storage chamber, and the oil storage chamber is used for the transit storage of hydraulic oil, and has a suction port and a discharge port; the suction port is connected to the first channel, and a first one-way valve is provided at the connection between the two; the discharge port is connected to the second channel, and a second one-way valve is provided at the connection between the two; the first one-way valve and the second one-way valve allow the hydraulic oil to only flow into the oil storage chamber from the suction port and flow out from the discharge port; a plunger, which is located in the oil storage chamber, so that the oil storage chamber forms a closed cavity; under the reciprocating motion of the plunger, the volume of the cavity will change, so as to realize the oil suction and discharge of the oil storage chamber.

[0013] Preferably, it also includes: an oil return circuit, which connects the first oil storage chamber and the first working chamber and is used to transfer the hydraulic oil from the first working chamber to the first oil storage chamber, so that the lifting block moves downward and resets; a reset bolt, which is arranged on the base and is used to control the opening and closing of the oil return circuit.

[0014] Preferably, a fixed ratio overflow valve and an oil inlet valve are provided on the damping valve piston; the fixed ratio overflow valve is used to regulate the flow of hydraulic oil from the second working chamber to the second oil storage chamber, and the oil inlet valve is a channel for controlling the flow of hydraulic oil from the second oil storage chamber to the second working chamber.

[0015] Furthermore, it also includes a horizontal shock-absorbing assembly arranged at the top of the lifting block, and the horizontal shock-absorbing assembly includes: an installation chamber, which is evenly distributed around the limiting hole and has an opening facing the limiting hole; a slider, one end of which is arranged in the installation chamber and a first spring is provided at the end; the other end of the slider is located outside the installation chamber and a shock-absorbing block is provided at the end; a wrapping belt, which is wrapped around the machine foot and is located between the machine foot and the shock-absorbing block.

[0016] Furthermore, an operating hole is provided at the top of the plunger; it also includes a control component, which includes: a support frame, the support frame and the shock absorbing device are independent of each other; an operating rod, one end of the operating rod passes through the operating hole, the middle part of the operating rod is swingably set on the support frame, and the other end of the operating rod is provided with a control plate; the control plate and the support frame are provided with a second spring in the vertical direction.

[0017] Preferably, when the injection molding machine vibrates in the vertical direction, the base frame and the lifting block move up and down, and the air chamber can provide compensation space for the volume change caused by the temperature change of the lifting block and the hydraulic oil; the base frame and the lifting block move downward, the hydraulic oil inside the shock absorbing body will flow between different chambers, the damping valve piston will apply resistance to the hydraulic oil, and the air chamber will compress, thereby achieving a shock absorbing effect; the base frame and the lifting block move upward, the hydraulic oil inside the shock absorbing body will flow between different chambers, the damping valve piston will apply resistance to the hydraulic oil, and the air chamber will expand, thereby achieving a shock absorbing effect.

[0018] In order to solve the above technical problems, the technical solution of the present invention is a method for using an auxiliary shock-absorbing device for a machine foot of an injection molding machine. According to the size of the machine foot on the injection molding machine, a surrounding belt is wrapped around the top of the machine foot so that when the first shock-absorbing body and the second shock-absorbing body are combined into a whole, the machine foot can contact the horizontal shock-absorbing assembly through the surrounding belt; when the injection molding machine vibrates in the horizontal direction, the machine foot shakes horizontally, and the surrounding belt cooperates with the slider and the shock-absorbing block to limit and buffer the horizontal movement of the machine foot. The slider and the first spring interact to achieve a shock-absorbing effect.

[0019] In order to solve the above technical problems, the technical solution of the present invention is a method for using a machine foot auxiliary shock absorbing device for an injection molding machine, which is characterized in that the above-mentioned shock absorbing device is adopted; the shock absorbing device is placed under the base frame, and hydraulic oil is transported to the first working chamber through the oil inlet circuit, so that the lifting block lifts the base frame to lift the injection molding machine off the ground; 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 and achieving a shock absorbing effect.

[0020] The technical effects of the present invention are mainly reflected in the following aspects: the shock absorbing device is an auxiliary shock absorbing device for the machine foot of the injection molding machine. Through the cooperation of the hydraulic control between the lifting block and the base and the action of the horizontal shock absorbing assembly, the vibration of the injection molding machine in the vertical and horizontal directions is effectively suppressed, thereby ensuring the stable operation of the equipment, reducing equipment wear and noise pollution, and optimizing the working environment. Through the flow of hydraulic oil between the chambers and the cooperation of the damping valve piston and the air chamber, it can provide an ideal damping shock absorbing effect when the injection molding machine vibrates vertically. At the same time, the air chamber can compensate for the volume change of the hydraulic oil caused by temperature changes, ensuring the stability of the shock absorbing performance; the limiting hole formed by the limiting groove accurately fixes and positions the machine foot of the injection molding machine, preventing position displacement during the vibration process, and ensuring the stable connection of the equipment; when the injection molding machine vibrates in the horizontal direction, the slider will slide relatively in the installation room, and the spring will absorb and disperse part of the vibration energy due to its compression or extension, effectively limiting and buffering the horizontal movement of the machine foot, thereby achieving the purpose of shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a machine foot auxiliary shock absorbing device for an injection molding machine according to the present invention;

[0022] Figure 2 A cross-sectional view of a machine foot auxiliary shock absorbing device for an injection molding machine according to the present invention;

[0023] Figure 3 for Figure 1 A structural cross-sectional view of the second shock absorbing body;

[0024] Figure 4 for Figure 3 Structural cross-sectional view of the middle lifting block;

[0025] Figure 5 for Figure 1 The structure diagram of the control component in the figure;

[0026] In the figure: 11, the first shock-absorbing body, 12, the second shock-absorbing body, 13, the first limiting groove, 14, the second limiting groove, 15, the limiting hole; 2, the base, 21, the first oil storage chamber, 22, the first working chamber, 23, the external window, 3, the lifting block, 31, the second oil storage chamber, 32, the second working chamber, 33, the air chamber, 34, the damping valve piston, 35, the isolation piston, 36, the piston rod; 4, the oil inlet circuit, 41, the first channel, 42, the second channel, 431, the oil storage chamber, 432, the suction port, 433, the discharge port, 44, the plunger, 441, the operating hole; 5, the horizontal shock-absorbing assembly, 51, the installation chamber, 52, the slider, 53, the first spring, 54, the shock-absorbing block; 6, the control assembly, 61, the support frame, 62, the operating rod, 63, the control board, 64, the second spring. DETAILED DESCRIPTION

[0027] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0028] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be through bolt fixing or pin fixing, or pin shaft connection and the like commonly used in the prior art, and therefore, it will not be described in detail in this embodiment.

[0030] The injection molding machine includes a base frame and machine feet. Existing production equipment basically has a frame and a frame (support frame) located at the bottom of the frame, and the injection molding machine is the same; therefore, the shock absorbing device completes the shock absorbing treatment of the injection molding machine by acting on the frame and machine feet of the injection molding machine.

[0031] Embodiment 1

[0032] See also Figure 1 , 23. A machine foot auxiliary shock absorbing device for an injection molding machine, the shock absorbing device includes a shock absorbing body, the shock absorbing body includes: a base 2, the base 2 has a first oil storage chamber 21 and a first working chamber 22 inside; the first working chamber 22 has an external window 23; a lifting block 3, the lifting block 3 is located in the first working chamber 22, the lifting block 3 extends through the external window 23 and contacts the base frame; an oil inlet circuit 4, the oil inlet circuit 4 connects the first oil storage chamber 21 and the first working chamber 22, and is used to transfer hydraulic oil from the first oil storage chamber 21 to the first working chamber 22, so that the lifting block 3 moves upward and lifts the base frame; the lifting block 3 has a first oil storage chamber 21 and a first working chamber 22. The first working chamber 22 is connected to the second oil storage chamber 31, and one end of the piston rod 36 is connected to the bottom end of the first working chamber 22. When the injection molding machine vibrates in the vertical direction, the base frame and the lifting block 3 move up and down, and the hydraulic oil in the shock absorbing body will flow between different chambers to generate a damping effect, thereby achieving a shock absorbing effect.

[0033] When the injection molding machine vibrates in the vertical direction, the base frame and the lifting block 3 move up and down, and the air chamber 33 can provide compensation space for the volume change caused by the temperature change of the lifting block 3 and the hydraulic oil; the base frame and the lifting block 3 move downward, the hydraulic oil inside the shock-absorbing body will flow between different chambers, the damping valve piston 34 will apply resistance to the hydraulic oil, and the air chamber 33 will be compressed to achieve a shock-absorbing effect; the base frame and the lifting block 3 move upward, the hydraulic oil inside the shock-absorbing body will flow between different chambers, the damping valve piston 34 will apply resistance to the hydraulic oil, and the air chamber 33 will expand to achieve a shock-absorbing effect.

[0034] Specifically, the internal structure design of the base 2 includes a first oil storage chamber 21 and a first working chamber 22, wherein the first working chamber 22 is particularly provided with an external window 23. Inside the first working chamber 22, a lifting block 3 is arranged, and the lifting block 3 is in contact with the base frame through the external window 23. The inside of the lifting block 3 is further divided into a second oil storage chamber 31, a second working chamber 32 and an air chamber 33. A damping valve piston 34 is provided between the second oil storage chamber 31 and the second working chamber 32, and an isolation piston 35 is provided between the second working chamber 32 and the air chamber 33, and a piston rod 36 is also attached to the damping valve piston 34. It is worth noting that the second oil storage chamber 31 and the first working chamber 22 are interconnected, and the piston rod 36 is directly connected to the bottom of the first working chamber 22. In addition, an oil inlet circuit 4 is provided, which connects the first oil storage chamber 21 and the first working chamber 22. Its function is to guide the hydraulic oil from the first oil storage chamber 21 into the first working chamber 22. When the hydraulic oil enters, it will drive the lifting block 3 to move upward, thereby lifting the chassis. By lifting the chassis to lift the injection molding machine off the ground, the vibration generated by the injection molding machine can be transmitted to the shock absorbing body to achieve initial shock absorption; during the shock absorption process, the air chamber 33 can provide compensation space for the volume change caused by the movement of the lifting block 3 and the change in the temperature of the hydraulic oil. The structural design of the shock absorbing device is used to lift and damp the injection molding machine; the area occupied by the working space of the injection molding machine when the shock absorbing device is installed is reduced, so that the shock absorbing device will not be too cumbersome in actual use.

[0035] See also Figure 1 , 2 The shock absorbing body is divided into a first shock absorbing body 11 and a second shock absorbing body 12, and the first shock absorbing body 11 and the second shock absorbing body 12 are respectively provided with a first limiting groove 13 and a second limiting groove 14; the first shock absorbing body 11 and the second shock absorbing body 12 are arranged opposite to each other, and the first limiting groove 13 and the second limiting groove 14 form a closed limiting hole 15; the limiting hole 15 is used for limiting and fixing the machine foot. The machine foot of the injection molding machine is accurately fixed and positioned through the limiting hole 15, thereby ensuring the stable connection between the shock absorbing device and the injection molding machine, and avoiding the position displacement of the injection molding machine during the vibration process.

[0036] Specifically, the first shock absorbing body 11 and the second shock absorbing body 12 are both designed with corresponding limiting structures, namely, the first limiting groove 13 and the second limiting groove 14. After docking, the two limiting grooves form a closed limiting hole 15. The size and shape of this limiting hole 15 just match the machine foot of the injection molding machine, so that the machine foot can be firmly embedded therein and cannot easily move up, down, left, and right, thereby realizing the precise positioning and anti-drift function of various vibration conditions that may be generated during the operation of the injection molding machine. In this regard, no matter what working conditions the injection molding machine operates under, the machine foot can always remain in the preset position, ensuring the stability of the overall structure of the injection molding machine, while also maximizing the effect of the shock absorbing device, effectively reducing the impact of vibration on the injection molding machine and its surrounding environment, extending the service life of the equipment, and improving production efficiency and safety.

[0037] See also Figure 1 , 5 , an operating hole 441 is provided at the top of the plunger 44; it also includes a control component 6, which includes: a support frame 61, the support frame 61 and the shock absorbing device are independent of each other; an operating rod 62, one end of the operating rod 62 passes through the operating hole 441, the middle part of the operating rod 62 is swingably set on the support frame 61, and the other end of the operating rod 62 is provided with a control plate 63; the control plate 63 and the support frame 61 are provided with a second spring 64 in the vertical direction.

[0038] Specifically, the operation hole 441 added to the top of the plunger 44 is to accommodate the operating rod 62, so that the plunger 44 can be controlled by external force; one end of the operating rod 62 passes through the operating hole 441 of the plunger 44, and the plunger 44 is directly driven to reciprocate in the oil storage chamber 431 by moving the operating rod 62, thereby controlling the suction and discharge of hydraulic oil. As a part independent of the shock absorbing device, the support frame can be removed after the shock absorbing device is installed to avoid affecting the subsequent use of the injection molding machine.

[0039] The damping valve piston 34 is provided with a fixed ratio relief valve and an oil inlet valve; the fixed ratio relief valve is used to regulate the flow of hydraulic oil from the second working chamber 32 to the second oil storage chamber 31, and the oil inlet valve is a channel for controlling the flow of hydraulic oil from the second oil storage chamber 31 to the second working chamber 32. The fixed ratio relief valve on the damping valve piston 34 is responsible for controlling the hydraulic oil in the second working chamber 32 to overflow to the second oil storage chamber 31 in a certain proportion when the pressure reaches the set value, so as to regulate the system pressure and prevent overload.

[0040] The oil inlet circuit 4 includes: a first channel 41, which is used to lead out the hydraulic oil in the first oil storage chamber 21; a second channel 42, which is used to introduce the hydraulic oil into the first working chamber 22; an operating unit, which has an oil storage chamber 431, which is used for the transfer storage of hydraulic oil and has a suction port 432 and a discharge port 433; the suction port 432 is connected to the first channel 41, and a first one-way valve is provided at the connection between the two; the discharge port 433 is connected to the second channel 42, and a second one-way valve is provided at the connection between the two; the first one-way valve and the second one-way valve allow the hydraulic oil to flow into the oil storage chamber 431 only from the suction port 432 and flow out from the discharge port 433; a plunger 44, which is located in the oil storage chamber 431, so that the oil storage chamber 431 forms a closed cavity; under the reciprocating motion of the plunger 44, the volume of the cavity will change, so as to realize the oil suction and discharge of the oil storage chamber 431. This setting only allows the hydraulic oil to flow from the suction port 432 into the oil storage chamber 431, but does not allow the hydraulic oil to flow back from the oil storage chamber 431 to the suction port 432. Similarly, the discharge port 433 is connected to the second channel 42, and a second one-way valve is provided at the connection between the discharge port 433 and the second channel 42. The operating direction of the second one-way valve is set to only allow the hydraulic oil in the oil storage chamber 431 to flow out to the second channel 42, but does not allow the hydraulic oil in the second channel 42 to flow back into the oil storage chamber 431. The one-way nature of the hydraulic oil flow direction is ensured.

[0041] An oil return circuit, which connects the first oil storage chamber 21 and the first working chamber 22, and is used to transfer the hydraulic oil from the first working chamber 22 to the first oil storage chamber 21, so that the lifting block 3 moves downward and resets; a reset bolt, which is arranged on the base 2, and is used to control the opening and closing of the oil return circuit.

[0042] Embodiment 2

[0043] Compared with the shock absorbing device in the first embodiment, the shock absorbing device in this embodiment has the following additional contents:

[0044] See also Figure 2 , 34. A machine foot auxiliary shock absorbing device for an injection molding machine, further comprising a horizontal shock absorbing assembly 5 arranged at the top of the lifting block 3, wherein the horizontal shock absorbing assembly 5 comprises: an installation chamber 51, the installation chamber 51 is evenly distributed around the limiting hole 15, and its opening is toward the limiting hole 15; a slider 52, one end of the slider 52 is arranged in the installation chamber 51, and a first spring 53 is provided at the end; the other end of the slider 52 is located outside the installation chamber 51, and a shock absorbing block 54 is provided at the end; a wrapping belt, the wrapping belt is wrapped around the machine foot, the wrapping belt is located between the machine foot and the shock absorbing block 54, that is, the wrapping belt is located between the machine foot and the lifting block 3, and the wrapping belt does not contact the base 2. The wrapping belt can be any material that can be wrapped around the frame, such as a plastic belt, a rubber belt, a raw tape, or the like. It can even be a sponge pad, cloth, wire, or other material that has a certain degree of elasticity and flexibility. The wrapping belt is mainly used to wrap around the frame as a medium for contact between the frame and the shock absorbing device. It does not require a specific material. When installing the shock absorbing device, local materials can be used according to actual conditions. The material selection of the wrapping belt is flexible and diverse. It can be adapted to different shock absorbing requirements and installation conditions according to actual environmental conditions and requirements, and it also facilitates on-site installation and maintenance. Furthermore, due to the different manufacturers of the injection molding machine, the specifications of the machine feet are also varied, and there is no specific standard, which makes it particularly difficult for the shock absorbing device to fix the machine feet through the limit holes 15. However, if the wrapping belt is used, it is relatively simple to fix the machine feet through the limit holes 15.

[0045] Specifically, the surrounding belt is tightly wrapped around the machine foot to form a soft contact surface. When the machine foot moves horizontally due to vibration, the shock-absorbing block 54 will further consume part of the vibration energy by squeezing the surrounding belt. At the same time, since the surrounding belt has a certain elasticity, it can provide additional buffering effect and reduce the degree of vibration transmission. When the injection molding machine vibrates in the horizontal direction, the slider 52 will slide relatively in the installation chamber 51, and the spring will absorb and disperse part of the vibration energy due to its compression or stretching, effectively limiting and buffering the horizontal movement of the machine foot, thereby achieving the purpose of shock absorption; it realizes all-round suppression of various vibrations in the operation of the injection molding machine and improves the shock absorption effect. By using the wrapped surrounding belt as the contact medium between the machine foot and the shock-absorbing device, the stress concentration at the connection part between the injection molding machine and the shock-absorbing device caused by continuous high-intensity vibration is avoided.

[0046] Embodiment 3

[0047] A method for using an auxiliary shock-absorbing device for a machine foot of an injection molding machine adopts the shock-absorbing device mentioned in Example 2; according to the size of the machine foot on the injection molding machine, a surrounding belt is wrapped around the top of the machine foot so that when the first shock-absorbing body 11 and the second shock-absorbing body 12 are combined into a whole, the machine foot can contact the horizontal shock-absorbing component 5 through the surrounding belt; when the injection molding machine vibrates in the horizontal direction, the machine foot shakes horizontally, and the surrounding belt cooperates with the slider 52 and the shock-absorbing block 54 to limit and buffer the horizontal movement of the machine foot, and the slider 52 and the first spring 53 interact to achieve a shock-absorbing effect.

[0048] Specifically, the slider 52 is located inside the installation chamber 51, and one end is connected to the first spring 53. When the machine foot shakes horizontally to drive the surrounding belt to move, the slider 52 will slide along the designed track inside the installation chamber 51. The contact and friction between the slider 52, the surrounding belt, and the shock-absorbing block 54, combined with the elastic buffering effect of the first spring 53, can effectively absorb and disperse the energy generated by the horizontal vibration of the injection molding machine, thereby significantly reducing the lateral vibration amplitude of the machine foot and improving the overall stability of the injection molding machine. Under the premise of not affecting the normal operation of the injection molding machine, the horizontal vibration of the injection molding machine can be effectively suppressed and slowed down, the equipment life can be extended, the product quality can be improved, and the working environment can be optimized.

[0049] Embodiment 4

[0050] A method for using a machine foot auxiliary shock absorbing device for an injection molding machine, using the shock absorbing device mentioned in all the above embodiments; placing the shock absorbing device under the base frame, delivering hydraulic oil to the first working chamber 22 through the oil inlet circuit 4, allowing the lifting block 3 to lift the base frame to lift the injection molding machine off the ground; when the injection molding machine vibrates in the vertical direction, the base frame and the lifting block 3 move up and down, and the hydraulic oil inside the shock absorbing body will flow between different chambers to produce a damping effect, thereby achieving a shock absorbing effect.

[0051] Specifically, when the lifting block 3 is fully extended, the injection molding machine will no longer directly contact the ground, but will be suspended at an appropriate height through the shock absorbing device. The shock absorbing device lifts up the injection molding machine and responds to the vertical vibration of the injection molding machine in real time. By combining the hydraulic system with the precisely designed damping structure, the vibration amplitude of the injection molding machine during operation is effectively reduced, the stability of the equipment operation is improved, and the equipment wear and noise pollution caused by long-term vibration are reduced, thereby extending the service life of the injection molding machine.

[0052] The shock absorbing device can successfully lift the injection molding machine off the ground, so that when it vibrates vertically, the hydraulic system inside the shock absorbing body can play a role and effectively reduce the vibration; at the same time, the horizontal shock absorbing component 5 can also play an important role when it vibrates in the horizontal direction, thereby achieving an all-round shock absorbing effect, greatly improving the service life and working efficiency of the injection molding machine.

[0053] The technical effects of the present invention are mainly reflected in the following aspects: the shock absorbing device is an auxiliary shock absorbing device for the machine foot of the injection molding machine. Through the cooperation of the hydraulic control between the lifting block 3 and the base 2 and the action of the horizontal shock absorbing assembly 5, the vibration of the injection molding machine in the vertical and horizontal directions is effectively suppressed, thereby ensuring the stable operation of the equipment, reducing equipment wear and noise pollution, and optimizing the working environment. Through the flow of hydraulic oil between the chambers and the cooperation of the damping valve piston 34 and the air chamber 33, it can provide an ideal damping shock absorbing effect when the injection molding machine vibrates vertically. At the same time, the air chamber 33 can compensate for the volume change of the hydraulic oil caused by temperature changes, ensuring the stability of the shock absorbing performance; the limiting hole 15 formed by the limiting groove accurately fixes and positions the machine foot of the injection molding machine, preventing position displacement during the vibration process, and ensuring the stable connection of the equipment; when the injection molding machine vibrates in the horizontal direction, the slider 52 will slide relatively in the installation chamber 51, and the spring will absorb and disperse part of the vibration energy due to its compression or extension, effectively limiting and buffering the horizontal movement of the machine foot, thereby achieving the purpose of shock absorption.

[0054] In addition, as common knowledge in the industry, the damping valve piston 34, the constant ratio relief valve, the oil inlet valve, the isolation piston 35, the oil inlet circuit 4 and the oil return circuit mentioned above are common knowledge, so their principles and structures will not be described in detail.

[0055] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A machine foot auxiliary shock absorbing device for an injection molding machine, the injection molding machine comprising a base frame and a machine foot, characterized in that: The shock absorbing device comprises a shock absorbing body, which comprises: a base, wherein the base has a first oil storage chamber and a first working chamber; the first working chamber has an external window; a lifting block, which is located in the first working chamber, and the lifting block extends through the external window and contacts the base frame; an oil inlet circuit, which 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 moves upward and lifts the base frame; The jacking block has 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 is connected to the first working chamber, 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 jacking 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; The shock absorbing body is divided into a first shock absorbing body and a second shock absorbing body, and the first shock absorbing body and the second shock absorbing body are respectively provided with a first limiting groove and a second limiting groove; the first shock absorbing body and the second shock absorbing body are arranged opposite to each other, and the first limiting groove and the second limiting groove form a closed limiting hole; the limiting hole is used for limiting and fixing the machine foot; A horizontal shock-absorbing assembly is arranged at the top of the lifting block, and the horizontal shock-absorbing assembly includes: an installation chamber, which is evenly distributed around the limiting hole and has an opening facing the limiting hole; a slider, one end of which is arranged in the installation chamber and a first spring is provided at the end; the other end of the slider is located outside the installation chamber and a shock-absorbing block is provided at the end; a wrapping belt, which is wrapped around the machine foot and is located between the machine foot and the shock-absorbing block.

2. The machine foot auxiliary shock absorbing device for injection molding machine according to claim 1, characterized in that: The oil inlet circuit comprises: a first channel, the first channel being used to lead out the hydraulic oil in the first oil storage chamber; a second passage, the second passage being used to introduce hydraulic oil into the first working chamber; An operating unit, wherein the operating unit has an oil storage chamber, the oil storage chamber is used for transfer storage of hydraulic oil, and the oil storage chamber has a suction port and a discharge port; the suction port is connected to the first channel, and a first one-way valve is provided at the connection between the two; the discharge port is connected to the second channel, and a second one-way valve is provided at the connection between the two; the first one-way valve and the second one-way valve allow the hydraulic oil to flow into the oil storage chamber only from the suction port and flow out from the discharge port; The plunger is located in the oil storage chamber, so that the oil storage chamber forms a closed cavity; under the reciprocating motion of the plunger, the volume of the cavity will change, thereby realizing the oil absorption and oil discharge of the oil storage chamber.

3. The machine foot auxiliary shock absorbing device for injection molding machine according to claim 1, characterized in that: Also includes: An oil return circuit, the oil return circuit is connected to the first oil storage chamber and the first working chamber, and is used to transfer the hydraulic oil from the first working chamber to the first oil storage chamber, so that the lifting block moves downward and resets; A reset bolt is arranged on the base and is used to control the opening and closing of the oil return circuit.

4. The auxiliary shock absorbing device for machine feet of an injection molding machine according to claim 1, characterized in that: A fixed ratio overflow valve and an oil inlet valve are provided on the damping valve piston; the fixed ratio overflow valve is used to regulate the flow of hydraulic oil from the second working chamber to the second oil storage chamber, and the oil inlet valve is a channel for controlling the flow of hydraulic oil from the second oil storage chamber to the second working chamber.

5. The machine foot auxiliary shock absorbing device for injection molding machine according to claim 2, characterized in that: The top of the plunger is provided with an operating hole; and a control component is also included, the control component comprising: A support frame, wherein the support frame and the shock absorbing device are independent of each other; An operating rod, one end of which passes through the operating hole, a middle portion of which is swingably arranged on the support frame, and a control plate is arranged at the other end of the operating rod; a second spring is arranged vertically between the control plate and the support frame.

6. The machine foot auxiliary shock absorbing device for injection molding machine according to claim 1, characterized in that: When the injection molding machine vibrates in the vertical direction, the base frame and the lifting block move up and down, and the air chamber can provide compensation space for the volume change caused by the temperature change of the lifting block and the hydraulic oil; The base frame and the lifting block move downward, the hydraulic oil inside the shock absorbing body flows between different chambers, the damping valve piston exerts resistance on the hydraulic oil, and the air chamber is compressed, thus achieving a shock absorbing effect; The base frame and the lifting block move upward, the hydraulic oil inside the shock absorbing body flows between different chambers, the damping valve piston applies resistance to the hydraulic oil, and the air chamber expands, thereby achieving a shock absorbing effect.

7. A method for using a machine foot auxiliary shock absorbing device for an injection molding machine, characterized in that: Using the shock absorbing device according to claim 1; According to the size of the machine foot on the injection molding machine, a surrounding belt is wound around the top of the machine foot, so that when the first shock absorbing body and the second shock absorbing body are combined into a whole, the machine foot can contact the horizontal shock absorbing assembly through the surrounding belt; When the injection molding machine vibrates in the horizontal direction, the machine foot shakes horizontally, and the surrounding belt cooperates with the slider and the shock-absorbing block to limit and buffer the horizontal movement of the machine foot. The slider and the first spring interact to achieve a shock-absorbing effect.

8. A method for using a machine foot auxiliary shock absorbing device for an injection molding machine, characterized in that: A shock absorbing device according to any one of claims 1 to 6; Place the shock absorbing device under the chassis, deliver hydraulic oil to the first working chamber through the oil inlet circuit, and let the lifting block lift the chassis to lift the injection molding machine off the ground; 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 flows between different chambers, producing a damping effect and achieving a shock-absorbing effect.

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