Oil cylinder sealing structure of full-electric injection molding machine

Abstract

The utility model relates to the technical field of oil cylinders, and discloses an all-electric injection molding machine oil cylinder sealing structure which comprises a fixing block, a limiting barrel is fixedly installed on the side portion of the fixing block, a supporting rod is arranged on the side portion of the limiting barrel, an installation block is installed on the side portion of the supporting rod, and the installation block and the supporting rod are fixedly installed through a fixing bolt. A limiting groove is formed in the middle of the limiting barrel, an extrusion rod is inserted into the middle of the limiting groove, a buffering assembly is arranged on the side portion of the extrusion rod, and through the arrangement of the extrusion rod and the buffering assembly, the sealing performance of the oil cylinder can be effectively improved, hydraulic oil leakage is prevented, and normal operation of equipment is guaranteed; through the combined arrangement of the fixing block, the limiting barrel, the supporting rod and the mounting block, a firm supporting structure is provided, the stability of the whole sealing structure is enhanced, through the arrangement of the buffering assembly, direct contact between the extrusion rod and the limiting barrel can be reduced in the movement process of the oil cylinder, abrasion is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to an oil cylinder sealing structure for a full-electric injection molding machine. Background Art

[0002] Compared with hydraulic injection molding machines, all-electric injection molding machines have higher precision, lower energy consumption and less maintenance requirements. Therefore, higher requirements are also put forward for the cylinder sealing structure of all-electric injection molding machines, including higher sealing performance, longer service life and lower failure rate. With the development of the injection molding industry, the requirements for cylinder sealing structure are getting higher and higher, which has prompted the innovation of sealing technology, including the use of new materials and the design of more complex sealing structures to meet the high performance requirements of all-electric injection molding machines. The background technology of the cylinder sealing structure of all-electric injection molding machines reflects the injection molding industry's continuous pursuit of efficient, precise and reliable sealing solutions, and the important role of technological innovation in meeting these requirements.

[0003] The existing oil cylinder sealing structure usually adopts sealing rings made of rubber or plastic. These sealing rings are prone to wear, aging, deformation and other problems during long-term use, resulting in a decrease in sealing performance, which in turn causes oil leakage, affecting the production environment and product quality; therefore, it does not meet the existing needs. In this regard, we propose a fully electric injection molding machine oil cylinder sealing structure. Utility Model Content

[0004] The utility model provides a fully electric injection molding machine oil cylinder sealing structure, which has the beneficial effect of increasing service life and solves the problem mentioned in the above background technology that the existing oil cylinder sealing structure usually adopts sealing rings made of rubber or plastic. These sealing rings are prone to wear, aging, deformation and other problems during long-term use, resulting in reduced sealing performance, and then causing oil leakage, affecting the production environment and product quality.

[0005] The utility model provides the following technical solution: a sealing structure of an oil cylinder of a fully electric injection molding machine, comprising a fixed block, a limiting cylinder fixedly installed on the side of the fixed block, a support rod provided on the side of the limiting cylinder, a mounting block installed on the side of the support rod, the mounting block being fixed to the support rod by a fixing bolt, a limiting groove provided in the middle of the limiting cylinder, an extrusion rod inserted in the middle of the limiting groove, and a buffer assembly provided on the side of the extrusion rod.

[0006] As an optional solution for the oil cylinder sealing structure of a fully electric injection molding machine described in the utility model, the side of the extrusion rod is installed with a connecting block through a stud bolt, the side of the connecting block is plugged with a fixed shaft, and the side of the extrusion rod is fixedly connected with a connecting piece.

[0007] As an optional scheme for the oil cylinder sealing structure of a fully electric injection molding machine described in the utility model, wherein: the side of the connecting piece is fixedly connected to an extrusion plate, the middle of the extrusion plate is provided with the buffer assembly, and the buffer assembly is in contact with the middle of the limiting cylinder.

[0008] As an optional solution for the oil cylinder sealing structure of a fully electric injection molding machine described in the utility model, the buffer assembly includes a mounting groove opened in the middle of the extrusion plate, a contact plate is installed in the middle of the mounting groove, and a stabilizing block is fixedly installed on the side of the contact plate.

[0009] As an optional solution for the oil cylinder sealing structure of a fully electric injection molding machine described in the utility model, wherein: a rotating shaft is fixedly installed in the middle of the stabilizing block, a rotating rod is hinged on the side of the rotating shaft, a rotating shaft is hinged on the side of the rotating rod, the rotating shaft is fixedly installed in the middle of the reinforcement block, a ring is fixedly connected to the side of the reinforcement block, and the ring is sleeved on the side of the connecting rod.

[0010] As an optional solution for the oil cylinder sealing structure of a fully electric injection molding machine described in the utility model, wherein: the connecting rod is fixedly installed in the middle of the installation groove, a return spring is sleeved on the side of the connecting rod, and the return spring is fixedly connected to the ring.

[0011] As an optional solution for the oil cylinder sealing structure of a fully electric injection molding machine described in the utility model, wherein: the side of the contact plate is fixedly connected to an elastic rod, the elastic rod is inserted in the middle of the elastic tube, the side of the elastic tube is fixedly connected to a fixing plate, the fixing plate is fixedly connected to the extrusion plate, and the side of the elastic rod is sleeved with an extrusion spring.

[0012] As an optional solution for the oil cylinder sealing structure of a fully electric injection molding machine described in the utility model, wherein: the elastic rod, the elastic tube, and the extrusion spring are symmetrically arranged in pairs, and the collar, the return spring, the rotating shaft, and the rotating rod are all symmetrically arranged.

[0013] The utility model has the following beneficial effects:

[0014] 1. The oil cylinder sealing structure of the all-electric injection molding machine can effectively improve the sealing performance of the oil cylinder, prevent hydraulic oil leakage, and ensure the normal operation of the equipment through the arrangement of the extrusion rod and the buffer assembly. The combination of the fixed block, the limit cylinder, the support rod and the mounting block provides a solid support structure and enhances the stability of the entire sealing structure. The arrangement of the buffer assembly can reduce the direct contact between the extrusion rod and the limit cylinder during the movement of the oil cylinder, reduce wear and extend the service life. The connection methods such as fixing bolts and stud bolts make it easy to disassemble and replace the components, reducing maintenance costs. The symmetrical arrangement of the elastic rod and the extrusion spring can evenly distribute the pressure, reduce structural damage caused by excessive local pressure, and improve safety in use.

[0015] 2. The oil cylinder sealing structure of the all-electric injection molding machine can absorb the impact force during the movement of the oil cylinder, reduce vibration, and improve the smooth operation of the equipment through the setting of the buffer component and the extrusion spring. The symmetrically arranged elastic rod, elastic cylinder, extrusion spring and other components can adapt to the sealing requirements under different working conditions and improve the adaptability of the structure. The fixed connection between the return spring and the collar can ensure the precise position of the extrusion rod during the movement and maintain the processing accuracy of the injection molding machine. The effective sealing structure reduces the leakage of hydraulic oil, which not only reduces maintenance costs but also reduces the impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional telescopic structure of the utility model.

[0018] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.

[0019] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0020] Figure 5 This is a schematic structural diagram of the buffer component of the present utility model.

[0021] In the figure: 110, fixed block; 120, limiting cylinder; 130, support rod; 140, mounting block; 150, fixing bolt; 160, extrusion rod; 170, connecting block; 180, fixed shaft; 190, stud bolt; 200, limiting groove; 210, extrusion plate; 220, connecting piece; 230, mounting groove; 240, elastic rod; 250, extrusion spring; 260, elastic cylinder; 270, fixing piece; 280, connecting rod; 290, return spring; 300, collar; 310, reinforcement block; 320, rotating shaft; 330, rotating rod; 340, rotating shaft; 350, stabilizing block; 360, contact plate; 370, buffer assembly. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: This example aims to solve the problem that the existing oil cylinder sealing structure usually uses sealing rings made of rubber or plastic. These sealing rings are prone to wear, aging, deformation and other problems during long-term use, resulting in reduced sealing performance, which in turn causes oil leakage and affects the production environment and product quality. Figure 1-Figure 5 A sealing structure for the oil cylinder of a fully electric injection molding machine includes a fixed block 110, a limiting cylinder 120 is fixedly installed on the side of the fixed block 110, a support rod 130 is provided on the side of the limiting cylinder 120, a mounting block 140 is installed on the side of the support rod 130, the mounting block 140 is fixed to the support rod 130 by a fixing bolt 150, a limiting groove 200 is provided in the middle of the limiting cylinder 120, an extrusion rod 160 is inserted in the middle of the limiting groove 200, and a buffer assembly 370 is provided on the side of the extrusion rod 160.

[0024] A connecting block 170 is installed on the side of the extrusion rod 160 through a stud bolt 190, a fixed shaft 180 is inserted into the side of the connecting block 170, a connecting piece 220 is fixedly connected to the side of the extrusion rod 160, and an extrusion plate 210 is fixedly connected to the side of the connecting piece 220. A buffer assembly 370 is provided in the middle of the extrusion plate 210, and the buffer assembly 370 is in contact and connected with the middle of the limiting cylinder 120.

[0025] When the oil cylinder begins to operate, the extrusion rod 160 moves toward the limiting cylinder 120 under the action of hydraulic pressure. The connecting block 170 on the side of the extrusion rod 160 is fixed by a stud 190. The fixed shaft 180 on the side of the connecting block 170 is inserted into the corresponding hole to ensure the linear movement of the extrusion rod 160. The connecting piece 220 is fixed to the side of the extrusion rod 160 and connected to the extrusion plate 210. The buffer assembly 370 in the middle of the extrusion plate 210 contacts the middle of the limiting cylinder 120. As the extrusion rod 160 moves, the buffer assembly 370 begins to work. A contact plate 360 ​​is installed in the mounting groove 230 of the extrusion plate 210. The stabilizing block 350 on the side of the contact plate 360 ​​is fixed with a rotating shaft 340. The rotating shaft 340 is connected to the reinforcement block 310 through a hinged rotating rod 330 and rotating shaft 320. The collar 300 on the side of the reinforcement block 310 is sleeved on the side of the connecting rod 280.

[0026] The connecting rod 280 is fixed in the middle of the mounting groove 230, and a return spring 290 is sleeved on its side. The return spring 290 is fixedly connected to the collar 300 to provide an elastic return function. When the extrusion rod 160 reaches the predetermined position, the elastic rod 240 and the extrusion spring 250 in the buffer assembly 370 are compressed to provide a continuous sealing force. The elastic rod 240 is inserted in the middle of the elastic tube 260. The side of the elastic tube 260 is fixedly connected with a fixing plate 270. The fixing plate 270 is fixedly connected to the extrusion plate 210 to form a stable sealing structure. The symmetrical setting of the rod 240 and the extrusion spring 250 ensures uniform sealing pressure. When the cylinder needs to release the sealing state, the hydraulic action is canceled, and the extrusion rod 160 returns to its initial position under the action of the reset spring 290. At the same time, the elastic rod 240 and the extrusion spring 250 release the pressure, and the elastic tube 260 and the fixing plate 270 are also reset. If the sealing assembly needs to be maintained or replaced, the fixing bolts 150, stud bolts 190 and other connecting parts can be removed to easily remove the extrusion rod 160, buffer assembly 370 and other components.

[0027] In this embodiment: through the arrangement of the extrusion rod 160 and the buffer assembly 370, the sealing performance of the oil cylinder can be effectively improved, hydraulic oil leakage can be prevented, and the normal operation of the equipment can be ensured; through the combination of the fixed block 110, the limiting cylinder 120, the support rod 130 and the mounting block 140, a sturdy support structure is provided, and the stability of the entire sealing structure is enhanced; through the arrangement of the buffer assembly 370, the direct contact between the extrusion rod 160 and the limiting cylinder 120 can be reduced during the movement of the oil cylinder, thereby reducing wear and extending the service life; through connection methods such as the fixing bolt 150 and the stud bolt 190, each component is easy to disassemble and replace, thereby reducing maintenance costs; through the symmetrical arrangement of the elastic rod 240 and the extrusion spring 250, the pressure can be evenly distributed, thereby reducing structural damage caused by excessive local pressure and improving safety of use.

[0028] Example 2: This example is intended to help solve the problem of device instability during use. This example is an improvement based on Example 1. For details, please refer to Figure 1-Figure 5 The buffer assembly 370 includes a mounting groove 230 opened in the middle of the extrusion plate 210 , a contact plate 360 ​​is installed in the middle of the mounting groove 230 , and a stabilizing block 350 is fixedly installed on the side of the contact plate 360 ​​.

[0029] A rotating shaft 340 is fixedly installed in the middle of the stabilizing block 350, and a rotating rod 330 is hinged on the side of the rotating shaft 340. A rotating shaft 320 is hinged on the side of the rotating rod 330. The rotating shaft 320 is fixedly installed in the middle of the reinforcement block 310. A ring 300 is fixedly connected to the side of the reinforcement block 310. The ring 300 is sleeved on the side of the connecting rod 280. The connecting rod 280 is fixedly installed in the middle of the mounting groove 230. A return spring 290 is sleeved on the side of the connecting rod 280, and the return spring 290 is fixedly connected to the ring 300.

[0030] The side of the contact plate 360 ​​is fixedly connected to the elastic rod 240, and the elastic rod 240 is inserted in the middle of the elastic tube 260. The side of the elastic tube 260 is fixedly connected to the fixing plate 270, and the fixing plate 270 is fixedly connected to the extrusion plate 210. The side of the elastic rod 240 is sleeved with the extrusion spring 250. There are two elastic rods 240, elastic tube 260, and extrusion springs 250 symmetrically arranged. The ring 300, return spring 290, rotating shaft 320, and rotating rod 330 are all symmetrically arranged.

[0031] In this embodiment: through the arrangement of the buffer assembly 370 and the extrusion spring 250, the impact force during the movement of the oil cylinder can be absorbed, the vibration can be reduced, and the smoothness of the equipment operation can be improved. The symmetrically arranged elastic rod 240, elastic cylinder 260, extrusion spring 250 and other components can adapt to the sealing requirements under different working conditions, thereby improving the adaptability of the structure. Through the fixed connection of the return spring 290 and the collar 300, the precise position of the extrusion rod 160 during the movement can be ensured, and the processing accuracy of the injection molding machine can be maintained. The effective sealing structure reduces the leakage of hydraulic oil, which not only reduces maintenance costs but also reduces the impact on the environment.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A full-electric injection molding machine oil cylinder sealing structure, comprising a fixed block (110), characterized in that: A limiting cylinder (120) is fixedly installed on the side of the fixing block (110), a support rod (130) is provided on the side of the limiting cylinder (120), a mounting block (140) is installed on the side of the support rod (130), and the mounting block (140) is fixedly installed with the support rod (130) through a fixing bolt (150), a limiting groove (200) is provided in the middle of the limiting cylinder (120), an extrusion rod (160) is inserted in the middle of the limiting groove (200), and a buffer assembly (370) is provided on the side of the extrusion rod (160).

2. The oil cylinder sealing structure of a fully electric injection molding machine according to claim 1, characterized in that: The side of the extrusion rod (160) is installed with a connecting block (170) via a stud bolt (190), the side of the connecting block (170) is plugged with a fixed shaft (180), and the side of the extrusion rod (160) is fixedly connected with a connecting piece (220).

3. The oil cylinder sealing structure of a fully electric injection molding machine according to claim 2, characterized in that: The side of the connecting piece (220) is fixedly connected to an extrusion plate (210), the middle of the extrusion plate (210) is provided with the buffer assembly (370), and the buffer assembly (370) is in contact with the middle of the limiting cylinder (120).

4. The oil cylinder sealing structure of a fully electric injection molding machine according to claim 3, characterized in that: The buffer assembly (370) includes a mounting groove (230) opened in the middle of the extrusion plate (210), a contact plate (360) is installed in the middle of the mounting groove (230), and a stabilizing block (350) is fixedly installed on the side of the contact plate (360).

5. The oil cylinder sealing structure of a fully electric injection molding machine according to claim 4, characterized in that: A rotating shaft (340) is fixedly installed in the middle of the stabilizing block (350), a rotating rod (330) is hinged on the side of the rotating shaft (340), a rotating shaft (320) is hinged on the side of the rotating rod (330), and the rotating shaft (320) is fixedly installed in the middle of the reinforcing block (310). A collar (300) is fixedly connected to the side of the reinforcing block (310), and the collar (300) is sleeved on the side of the connecting rod (280).

6. The oil cylinder sealing structure of a fully electric injection molding machine according to claim 5, characterized in that: The connecting rod (280) is fixedly installed in the middle of the installation groove (230), and a return spring (290) is sleeved on the side of the connecting rod (280), and the return spring (290) is fixedly connected to the collar (300).

7. The oil cylinder sealing structure of a fully electric injection molding machine according to claim 6, characterized in that: The side of the contact plate (360) is fixedly connected to an elastic rod (240), the elastic rod (240) is inserted into the middle of the elastic tube (260), the side of the elastic tube (260) is fixedly connected to a fixing plate (270), the fixing plate (270) is fixedly connected to the extrusion plate (210), and the side of the elastic rod (240) is sleeved with an extrusion spring (250).

8. The oil cylinder sealing structure of a fully electric injection molding machine according to claim 7, characterized in that: The elastic rod (240), the elastic tube (260), and the extrusion spring (250) are all symmetrically arranged in pairs, and the collar (300), the return spring (290), the rotating shaft (320), and the rotating rod (330) are all symmetrically arranged.

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