Electric injection molding machine with high rigidity, low friction and compact mold clamping mechanism

Abstract

The present invention belongs to the technical field of electric injection molding machine production, and provides an electric injection molding machine with a high-rigidity, low-friction, compact clamping mechanism. The electric injection molding machine with a high-rigidity, low-friction, compact clamping mechanism comprises a workbench, one side of the workbench is provided with an injection system, the upper end surface of the workbench is fixedly provided with a No. 1 fixing seat and a No. 2 fixing seat, four guide rods are distributed in a rectangular shape between the No. 1 fixing seat and the No. 2 fixing seat, each guide rod is provided with a guide mechanism, and all guide mechanisms can move horizontally along the guide rods. In the present invention, when the movable template approaches the fixed template, each limiting mechanism elastically abuts against each guide mechanism, thereby avoiding a rigid impact between the movable template and the fixed template; at the same time, the limiting mechanism can limit the guide mechanism, thereby increasing the docking accuracy between the movable template and the fixed template.

Description

Technical Field

[0001] The invention belongs to the technical field of electric injection molding machine production, and in particular relates to an electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism. Background Art

[0002] The power system of the electric injection molding machine adopts full motor drive, as well as PLC, frequency conversion and servo control technology. While achieving high-precision control and substantial energy saving, it avoids the noise, heat and oil leakage common in hydraulic injection molding machines.

[0003] The injection molding machine uses the thrust of the screw to inject the plasticized molten plastic into the closed mold cavity, and obtain the product after solidification. Injection molding is a cyclic process, and each cycle mainly includes: quantitative feeding - melting and plasticization - pressure injection - mold filling and cooling - mold opening and taking out the parts. After taking out the plastic parts, the mold is closed again to proceed to the next cycle.

[0004] During the mold closing process, a driving device is generally used to drive the mobile mold to close the mold to the fixed mold. The sealing degree of the mold closing affects the molding effect of the injection molded product. However, during the mold closing process, the existing mold closing mechanism has a problem that the mobile mold continuously reciprocates horizontally, the mobile module continuously rubs against the guide mechanism, and the mobile mold continuously collides and contacts with the fixed mold. As a result, after long-term use, the matching accuracy between the mobile mold and the guide mechanism decreases, and the matching accuracy and sealing between the mobile mold and the fixed mold decrease. Summary of the invention

[0005] The purpose of the present invention is to provide an electric injection molding machine with a high-rigidity, low-friction, compact clamping mechanism, aiming to solve the technical problems in the prior art that after long-term use, the matching accuracy between the movable mold and the guide mechanism decreases, and the matching accuracy and sealing between the movable mold and the fixed mold decrease.

[0006] The present invention is implemented as follows: an electric injection molding machine with a high-rigidity, low-friction, compact clamping mechanism comprises a workbench, an injection system is arranged on one side of the workbench, a No. 1 fixing seat and a No. 2 fixing seat are fixedly arranged on the upper end surface of the workbench, four guide rods are distributed in a rectangular shape between the No. 1 fixing seat and the No. 2 fixing seat, each guide rod is provided with a guide mechanism, all guide mechanisms can move horizontally along the guide rods, all guide mechanisms are commonly connected to a fixed plate, a movable template is fixedly connected to the middle of the fixed plate, and a driving mechanism for pushing the fixed plate to move horizontally is connected between the fixed plate and the No. 2 fixing seat;

[0007] The end surface of the No. 1 fixed seat facing the movable template is fixedly connected with four electric telescopic sleeves, each of which is arranged on the outside of the guide rod, and each of which is connected to a limiting mechanism, and each of which can limit the guide mechanism. The No. 1 fixed seat is provided with an oil tank, and a conduit is connected between the oil tank and each limiting mechanism, and a guide valve for unidirectionally guiding flow into the limiting mechanism is provided on the conduit. When the guide mechanism squeezes the limiting mechanism, the limiting mechanism can input lubricating oil into the guide mechanism; the end surface of the No. 1 fixed seat facing the movable template is fixedly provided with a fixed template, and the outer side walls of the openings of the movable template and the fixed template are both provided with chamfers;

[0008] The upper end surface of the workbench is fixedly connected with an outer cover, and sealing mechanisms are arranged around the fixed template. The sealing mechanisms are respectively fixedly connected with the workbench and the outer cover. The sealing mechanisms seal the joint between the movable template and the fixed template through telescopic movement, and the sealing mechanisms are also connected with a cooling mechanism;

[0009] The control system can control the posture of the movable template and the sealing between the movable template and the fixed template by controlling the electric telescopic sleeve, the limiting mechanism, the sealing mechanism and the cooling mechanism.

[0010] Further technical solution: the guide mechanism includes a sleeve, a sliding sleeve, a spring and a ball;

[0011] The guide rod passes through the outer sleeve, and the inner wall of the outer sleeve is slidably and sealingly connected with two sliding sleeves. A plurality of springs are arranged between each sliding sleeve and the inner wall of the outer sleeve, and a plurality of balls are universally connected to the springs. All the balls are in contact with the guide rod, and the cavity between the outer sleeve and the sliding sleeve is filled with lubricating oil.

[0012] Further technical solution: the limiting mechanism includes an elastic telescopic sleeve, a baffle and a limiting head;

[0013] The telescopic ends of the electric telescopic sleeves are fixedly connected with elastic telescopic sleeves, and the telescopic ends of the elastic telescopic sleeves are fixedly connected with baffles. The end surface of the baffle facing the outer sleeve is provided with a plurality of limit heads, and the heads of the limit heads are all conical. The limit heads are connected with the baffle and the inside of the elastic telescopic sleeve, and the inside of the baffle and the elastic telescopic sleeve are filled with lubricating oil. The limit heads are unidirectionally conductive to the outside of the baffle, and the end surface of the outer sleeve facing the baffle is provided with a plurality of guide holes, all of which correspond to all of the limit heads one by one, and the guide holes can be unidirectionally conductive to the inside of the outer sleeve.

[0014] Further technical solution: The sealing mechanism includes an electric telescopic seat and a sealing block seat. The electric telescopic seat is arranged around the fixed template. The electric telescopic seat is fixedly connected to the workbench or the outer cover. The telescopic ends of the electric telescopic seat are fixedly connected to the sealing block seat. The end of the sealing block seat facing the fixed template is triangular.

[0015] Further technical solution: the cooling mechanism includes a water tank, a No. 1 hose and a No. 2 hose;

[0016] The sealing seats are connected with a No. 2 hose, the outer cover is fixedly connected with a water tank, the water tank and both ends of a sealing seat are connected with a No. 1 hose, and a water pump is arranged in the water tank.

[0017] Further technical solution: a plurality of guide plates are obliquely arranged in the sealing block, and a guide channel is arranged in the sealing block at the end close to the fixed template.

[0018] Further technical solution: the driving mechanism includes an active rod, a driven rod and a driving motor;

[0019] The end surfaces of the No. 2 fixed seat and the fixed plate are respectively rotatably connected with an active rod and a driven rod, the active rod and the driven rod are rotatably connected, a driving motor is fixedly arranged on the No. 2 fixed seat, and a gear transmission pair for driving the active rod to rotate is arranged between the driving motor and the central axis of the active rod.

[0020] Further technical solution: The control system comprises:

[0021] A monitoring module, comprising a plurality of pressure sensors and a plurality of temperature sensors, wherein the end of the sealing block facing the fixed template is provided with a pressure sensor and a temperature sensor;

[0022] A storage module, which is used to store the maximum pressure difference between the pressure sensors and the temperature value of the temperature sensor at the same time;

[0023] A processing module, which is used to compare the maximum pressure difference between the pressure sensors at the same time with the pressure difference threshold preset by the processing module, and to compare the temperature value of each temperature sensor with the preset temperature threshold, and respectively form judgment information;

[0024] The control module is used to control the electric telescopic sleeve, the limiting mechanism, the sealing mechanism and the cooling mechanism.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. When the movable template approaches the fixed template, each limiting mechanism elastically contacts with each guiding mechanism, thereby avoiding rigid impact between the movable template and the fixed template; at the same time, the limiting mechanism can limit the guiding mechanism, thereby increasing the docking accuracy between the movable template and the fixed template;

[0027] 2. When the maximum pressure difference between the pressure sensors at the same time exceeds the pressure difference threshold in the processing module, it means that the docking accuracy between the mobile template and the fixed template is too low. The control system controls all the electric telescopic sleeves to extend, and all the electric telescopic sleeves push the baffles connected to them closer to the outer jacket. When the mobile template reaches the predetermined position, the extrusion force between each limit head and each guide hole increases, thereby increasing the limit accuracy of each outer jacket, further adjusting the position of the mobile template, and increasing the positioning accuracy between the mobile template and the fixed template;

[0028] 3. When the temperature value of a certain temperature sensor exceeds the preset temperature threshold at the same time, it means that the seal between the movable template and the fixed template is not tight, and the plastic solvent overflows along the joint between the movable template and the fixed template. At this time, the control system controls all sealing mechanisms to increase the sealing degree of the joint between the movable template and the fixed template. At the same time, the control system controls the cooling mechanism to start, and accelerates the cooling speed of the joint between the movable template and the fixed template through the cooling mechanism, thereby accelerating the cooling and molding of the thermoplastic product in the movable template and the fixed template, and avoiding the overflow of the plastic solvent in the movable template and the fixed template.

[0029] 4. Under the action of the extrusion pressure, the elastic expansion sleeve contracts, and the lubricating oil in the elastic expansion sleeve enters the outer sleeve through the guide hole under the action of the liquid pressure. Under the action of the lubricating oil liquid pressure, the sliding sleeve drives the ball and the guide rod to be further clamped, thereby further increasing the positioning accuracy of the moving template. At the same time, under the action of the liquid pressure of the lubricating oil, the guiding accuracy of the guide mechanism during the movement of the moving template can be increased; at the same time, under the action of the liquid pressure, the lubricating oil between the outer sleeve and the sliding sleeve further precipitates through the gap between the ball and the sliding sleeve, reducing the friction resistance during the movement of the ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a schematic diagram of the internal structure of the outer cover in the present invention.

[0032] Figure 3 It is a structural schematic diagram of the cooling mechanism in the present invention.

[0033] Figure 4 It is a schematic diagram of the connection structure between the limiting mechanism and the oil tank in the present invention.

[0034] Figure 5 It is a structural schematic diagram of the limiting mechanism in the present invention.

[0035] Figure 6 It is a schematic diagram of the structure of the driving mechanism in the present invention.

[0036] Figure 7 It is a schematic diagram of the connection between the outer cover and the guide rod in the present invention.

[0037] Figure 8 It is a structural schematic diagram of the guide mechanism in the present invention.

[0038] Fig. 9 It is a structural schematic diagram of the sealing mechanism in the present invention.

[0039] Fig.10 It is a schematic diagram of the connection structure between the sealing block seat and the guide plate.

[0040] Fig.11 This is the control principle diagram of the regulation system.

[0041] In the attached drawings: 1. workbench; 2. outer cover; 3. guide mechanism; 31. outer sleeve; 32. sliding sleeve; 33. spring; 34. ball bearing; 4. driving mechanism; 41. active rod; 42. driven rod; 43. driving motor; 5. electric telescopic sleeve; 6. limiting mechanism; 61. elastic telescopic sleeve; 62. baffle; 63. limiting head; 7. sealing mechanism; 71. electric telescopic seat; 72. sealing baffle; 8. cooling mechanism; 81. water tank; 82. No. 1 hose; 83. No. 2 hose; 9. diversion hole; 10. oil tank; 11. No. 1 fixed seat; 12. No. 2 fixed seat; 13. guide rod; 14. fixed plate; 15. movable template; 16. fixed template; 17. conduit; 18. guide plate. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0044] like Figure 1-Figure 11As shown, the electric injection molding machine with high rigidity, low friction and compact clamping mechanism provided by the present invention comprises a workbench 1, one side of the workbench 1 is provided with an injection system, the upper end surface of the workbench 1 is fixedly provided with a No. 1 fixing seat 11 and a No. 2 fixing seat 12, four guide rods 13 are distributed in a rectangular shape between the No. 1 fixing seat 11 and the No. 2 fixing seat 12, each guide rod 13 is provided with a guide mechanism 3, all guide mechanisms 3 can move horizontally along the guide rod 13, all guide mechanisms 3 are commonly connected to a fixed plate 14, the middle part of the fixed plate 14 is fixedly connected to a movable template 15, and a driving mechanism 4 for pushing the fixed plate 14 to move horizontally is connected between the fixed plate 14 and the No. 2 fixing seat 12;

[0045] The end surface of the No. 1 fixed seat 11 facing the movable template 15 is fixedly connected with four electric telescopic sleeves 5, each of which is arranged on the outside of the guide rod 13, and the electric telescopic sleeves 5 are connected to the limiting mechanism 6, and the limiting mechanism 6 can limit the guide mechanism 3. The No. 1 fixed seat 11 is provided with an oil tank 10, and a conduit 17 is connected between the oil tank 10 and each limiting mechanism 6, and a guide valve for unidirectional flow into the limiting mechanism 6 is provided on the conduit 17. When the guide mechanism 3 squeezes the limiting mechanism 6, the limiting mechanism 6 can input lubricating oil into the guide mechanism 3; the end surface of the No. 1 fixed seat 11 facing the movable template 15 is fixedly provided with a fixed template 16, and the outer side walls of the openings of the movable template 15 and the fixed template 16 are both provided with chamfers;

[0046] The upper end surface of the workbench 1 is fixedly connected with the outer cover 2, and the fixed template 16 is provided with sealing mechanisms 7 around it. The sealing mechanisms 7 are respectively fixedly connected with the workbench 1 and the outer cover 2. The sealing mechanisms 7 seal the joint between the movable template 15 and the fixed template 16 through telescopic movement. The sealing mechanisms 7 are also connected with a cooling mechanism 8;

[0047] The control system can control the posture of the movable template 15 and the sealing between the movable template 15 and the fixed template 16 by controlling the electric telescopic sleeve 5, the limiting mechanism 6, the sealing mechanism 7 and the cooling mechanism 8.

[0048] In this embodiment, during injection molding, the driving mechanism 4 is started, and the fixed plate 14 is pushed to move horizontally by the driving mechanism 4. At this time, all the guide mechanisms 3 move synchronously along each guide rod 13, and the fixed plate 14 is guided by the cooperation of each guide mechanism 3 and the guide rod 13. The movable template 15 on the fixed plate 14 is molded with the fixed template 16. When the movable template 15 is close to the fixed template 16, each limiting mechanism 6 elastically abuts against each guiding mechanism 3, thereby avoiding rigid impact between the movable template 15 and the fixed template 16; at the same time, the limiting mechanisms 6 can limit the guiding mechanism 3, thereby increasing the docking accuracy between the movable template 15 and the fixed template 16;

[0049] When the movable template 15 and the fixed template 16 are molded together, each sealing mechanism 7 is started, and each sealing mechanism 7 seals the joint between the movable template 15 and the fixed template 16, thereby increasing the sealing between the movable template 15 and the fixed template 16;

[0050] When the control system detects that the docking accuracy between the mobile template 15 and the fixed template 16 is too low, the control system controls all the electric telescopic sleeves 5 to extend, and all the electric telescopic sleeves 5 push all the limit mechanisms 6 to increase the limit of each guide mechanism 3, thereby adjusting the position of the mobile template 15 and increasing the positioning accuracy between the mobile template 15 and the fixed template 16;

[0051] When the control system detects that the sealing between the movable template 15 and the fixed template 16 is insufficient, the control system controls all the sealing mechanisms 7 to increase the sealing degree of the joint between the movable template 15 and the fixed template 16. At the same time, the control system controls the cooling mechanism 8 to start, and accelerates the cooling speed of the joint between the movable template 15 and the fixed template 16 through the cooling mechanism 8, thereby accelerating the cooling and molding of the thermoplastic product in the movable template 15 and the fixed template 16, and avoiding the overflow of the plastic solvent in the movable template 15 and the fixed template 16.

[0052] like Figure 7 as well as Figure 8 As shown, it is an electric injection molding machine with a high-rigidity, low-friction and compact mold clamping mechanism provided by the present invention, wherein the guide mechanism 3 includes a jacket 31, a sliding sleeve 32, a spring 33 and a ball 34;

[0053] The guide rod 13 passes through the outer sleeve 31, and the inner wall of the outer sleeve 31 is slidably and sealedly connected with two sliding sleeves 32. A plurality of springs 33 are arranged between each sliding sleeve 32 and the inner wall of the outer sleeve 31. A plurality of balls 34 are universally connected to the springs 33, and all the balls 34 are in contact with the guide rod 13. The cavity between the outer sleeve 31 and the sliding sleeve 32 is filled with lubricating oil.

[0054] In this embodiment, in the outer sleeve 31, all the springs 33 jointly push the two sleeves 32 to clamp the guide rod 13. At this time, all the balls 34 on the two sleeves 32 are in contact with the guide rod 13, and the fixed plate 14 is guided under the cooperation of the guide mechanism 3 and the guide rod 13, so that the movable template 15 and the fixed template 16 can be accurately docked. Through the cooperation of the balls 34 and the guide rod 13, the friction force of the sleeve 32 when moving is reduced, and when all the balls 34 roll, the lubricating oil in the cavity between the outer sleeve 31 and the sleeve 32 further lubricates the balls 34.

[0055] like Figure 5 As shown, it is an electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism provided by the present invention, wherein the limiting mechanism 6 includes an elastic telescopic sleeve 61, a baffle 62 and a limiting head 63;

[0056] The telescopic ends of the electric telescopic sleeve 5 are fixedly connected with elastic telescopic sleeves 61, the oil tank 10 is connected with the elastic telescopic sleeve 61 through a conduit 17, the telescopic ends of the elastic telescopic sleeve 61 are fixedly connected with a baffle 62, and the end surface of the baffle 62 facing the outer sleeve 31 is provided with a plurality of limit heads 63, the heads of the limit heads 63 are all conical, the limit heads 63 are internally connected with the baffle 62 and the elastic telescopic sleeve 61, and the interiors of the baffle 62 and the elastic telescopic sleeve 61 are filled with lubricating oil, the limit heads 63 are unidirectionally conductive to the outside of the baffle 62, and the end surface of the outer sleeve 31 facing the baffle 62 is provided with a plurality of guide holes 9, all of the guide holes 9 correspond one-to-one to all of the limit heads 63, and the guide holes 9 can be unidirectionally conductive to the inside of the outer sleeve 31.

[0057] In this embodiment, when the movable template 15 approaches the fixed template 16, the guide holes 9 on the outer sleeve 31 are docked with the limit heads 63 on the baffle 62. Under the limiting action of the limit heads 63, the positioning accuracy of the movable template 15 and the fixed template 16 when docking is increased; as the movable template 15 is advanced, the abutment force between the guide holes 9 and the limit heads 63 increases, so that the extrusion force between the limit heads 63 and the guide holes 9 is continuously increased, thereby continuously increasing the positioning accuracy of the movable template 15;

[0058] During this process, the elastic expansion sleeve 61 contracts under the action of the extrusion force, and the lubricating oil in the elastic expansion sleeve 61 enters the outer sleeve 31 through the guide hole 9 under the action of the hydraulic pressure. Under the action of the hydraulic pressure of the lubricating oil, the sliding sleeve 32 drives the ball 34 and the guide rod 13 to be further clamped, thereby further increasing the positioning accuracy of the movable template 15. At the same time, under the action of the hydraulic pressure of the lubricating oil, the guiding accuracy of the guide mechanism 3 during the movement of the movable template 15 can be increased; at the same time, under the action of the hydraulic pressure, the lubricating oil between the outer sleeve 31 and the sliding sleeve 32 is further precipitated through the gap between the ball 34 and the sliding sleeve 32, thereby reducing the friction resistance of the ball 34 during its movement.

[0059] When the elastic telescopic sleeve 61 is extended and reset, negative pressure is generated in the elastic telescopic sleeve 61, and the lubricating oil in the oil tank 10 is replenished into the elastic telescopic sleeve 61 through the conduit 17, so that each time the movable template 15 and the fixed template 16 are closed, the elastic telescopic sleeve 61 can replenish the lubricating oil into the outer sleeve 31, further improving the positioning effect of the movable template 15.

[0060] like Fig. 9 As shown, it is an electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism provided by the present invention, the sealing mechanism 7 includes an electric telescopic seat 71 and a sealing block seat 72, the electric telescopic seat 71 is arranged around the fixed template 16, the electric telescopic seat 71 is fixedly connected to the workbench 1 or the outer cover 2, the telescopic ends of the electric telescopic seat 71 are fixedly connected to the sealing block seat 72, and the end of the sealing block seat 72 facing the fixed template 16 is triangular.

[0061] In this embodiment, the electric telescopic seat 71 extends and drives the sealing stop seat 72 to abut against the joint between the movable template 15 and the fixed template 16 , thereby increasing the sealing effect between the movable template 15 and the fixed template 16 .

[0062] like Figure 3 As shown, it is an electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism provided by the present invention, wherein the cooling mechanism 8 includes a water tank 81, a No. 1 hose 82, and a No. 2 hose 83;

[0063] The sealing seats 72 are connected with a No. 2 hose 83 , the outer cover 2 is fixedly connected with a water tank 81 , the water tank 81 and both ends of a sealing seat 72 are connected with a No. 1 hose 82 , and a water pump is arranged in the water tank 81 .

[0064] In this embodiment, the water pump in the water tank 81 is started so that the cooling water circulates between each sealing block 72 and the water tank 81, thereby accelerating the cooling of the joint between the movable template 15 and the fixed template 16 and preventing the plastic solvent between the movable template 15 and the fixed template 16 from overflowing.

[0065] like Fig.10 As shown, the electric injection molding machine with a high-rigidity, low-friction and compact mold clamping mechanism provided by the present invention, wherein a plurality of guide plates 18 are obliquely arranged in the sealing block 72, and a guide channel is arranged at the end of the sealing block 72 close to the fixed template 16.

[0066] In this embodiment, when the cooling water flows in the sealing block 72 , the cooling water is concentrated to the guide channel through the guide plate 18 , thereby increasing the cooling effect on the joint between the movable template 15 and the fixed template 16 .

[0067] like Figure 6 As shown, it is an electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism provided by the present invention, wherein the driving mechanism 4 includes an active rod 41, a driven rod 42 and a driving motor 43;

[0068] The end surfaces of the No. 2 fixed seat 12 and the fixed plate 14 are respectively rotatably connected with an active rod 41 and a driven rod 42, and the active rod 41 is rotatably connected with the driven rod 42. A driving motor 43 is fixedly arranged on the No. 2 fixed seat 12, and a gear transmission pair is arranged between the driving motor 43 and the central axis of the active rod 41 to drive the active rod 41 to rotate.

[0069] In this embodiment, the driving motor 43 is started, the driving motor 43 drives the active rod 41 to rotate, and the active rod 41 pushes the fixing plate 14 to move horizontally through the driven rod 42.

[0070] like Fig.11 As shown, the electric injection molding machine with a high-rigidity, low-friction, compact clamping mechanism provided by the present invention, the control system includes:

[0071] A monitoring module, which includes a plurality of pressure sensors and a plurality of temperature sensors. The end of the sealing block 72 facing the fixed template 16 is provided with a pressure sensor and a temperature sensor;

[0072] A storage module, which is used to store the maximum pressure difference between the pressure sensors and the temperature value of the temperature sensor at the same time;

[0073] a processing module, which is used to compare the maximum pressure difference between the pressure sensors at the same time with the pressure difference threshold preset by the processing module, and to compare the temperature value of each temperature sensor with the preset temperature threshold, and to form judgment information respectively, and the processing module is preferably a computer processor;

[0074] A control module is used to control the electric telescopic sleeve 5, the limiting mechanism 6, the sealing mechanism 7 and the cooling mechanism 8. The control module is preferably a PLC controller.

[0075] In this embodiment, when the maximum pressure difference between the pressure sensors at the same time exceeds the pressure difference threshold in the processing module, it means that the docking accuracy between the movable template 15 and the fixed template 16 is too low, and the control system controls all the electric telescopic sleeves 5 to extend, and all the electric telescopic sleeves 5 push the baffles 62 connected thereto to approach the outer jacket 31. When the movable template 15 reaches the predetermined position, the extrusion force between each limit head 63 and each guide hole 9 increases, thereby increasing the limit accuracy of each outer jacket 31, and further adjusting the position of the movable template 15 to increase the positioning accuracy between the movable template 15 and the fixed template 16;

[0076] When the temperature value of a certain temperature sensor exceeds the preset temperature threshold at the same time, it means that the seal between the movable template 15 and the fixed template 16 is not tight, and the plastic solvent overflows along the joint between the movable template 15 and the fixed template 16. At this time, the control system controls all sealing mechanisms 7 to increase the sealing degree of the joint between the movable template 15 and the fixed template 16. At the same time, the control system controls the cooling mechanism 8 to start, and accelerates the cooling speed of the joint between the movable template 15 and the fixed template 16 through the cooling mechanism 8, thereby accelerating the cooling and molding of the thermoplastic product in the movable template 15 and the fixed template 16, and avoiding the overflow of the plastic solvent in the movable template 15 and the fixed template 16.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0078] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism, comprising a workbench (1), wherein a first fixing seat (11) and a second fixing seat (12) are fixedly arranged on the upper end surface of the workbench (1), characterized in that: Four guide rods (13) are arranged in a rectangular shape between the first fixing seat (11) and the second fixing seat (12), each guide rod (13) is provided with a guide mechanism (3), all guide mechanisms (3) are capable of horizontally moving along the guide rod (13), all guide mechanisms (3) are commonly connected to a fixing plate (14), a movable template (15) is fixedly connected to the middle of the fixing plate (14), and a driving mechanism (4) is connected between the fixing plate (14) and the second fixing seat (12); The first fixed seat (11) is fixedly connected to the end surface facing the movable template (15) with four electric telescopic sleeves (5), each of which is arranged outside the guide rod (13), and each of which is connected to a limiting mechanism (6), and each of which is capable of limiting the guide mechanism (3). The first fixed seat (11) is provided with an oil tank (10), and a conduit (17) is connected between the oil tank (10) and each of the limiting mechanisms (6), and a guide valve for unidirectionally guiding flow into the limiting mechanism (6) is arranged on the conduit (17), and the first fixed seat (11) is fixedly provided with a fixed template (16); The upper end surface of the workbench (1) is fixedly connected to an outer cover (2), and sealing mechanisms (7) are arranged around the fixed template (16). The sealing mechanism (7) seals the joint between the movable template (15) and the fixed template (16) through telescopic movement, and the sealing mechanism (7) is also connected to a cooling mechanism (8); A control system, which can control the position of the movable template (15) and the sealing between the movable template (15) and the fixed template (16) by controlling the electric telescopic sleeve (5), the limiting mechanism (6), the sealing mechanism (7) and the cooling mechanism (8); The guide mechanism (3) comprises a sleeve (31), a sliding sleeve (32), a spring (33) and a ball (34); The limiting mechanism (6) comprises an elastic telescopic sleeve (61), a baffle (62) and a limiting head (63); the telescopic ends of the electric telescopic sleeve (5) are fixedly connected to the elastic telescopic sleeve (61), the telescopic ends of the elastic telescopic sleeve (61) are fixedly connected to the baffle (62), and the end surface of the baffle (62) facing the outer sleeve (31) is provided with a plurality of limiting heads (63), the heads of the limiting heads (63) are all conical, and the limiting heads (63) are connected to the outer sleeve (31). The baffle (62) and the elastic telescopic sleeve (61) are internally connected, and the interiors of the baffle (62) and the elastic telescopic sleeve (61) are filled with lubricating oil, the limit heads (63) are unidirectionally connected to the outside of the baffle (62), and the end surface of the outer sleeve (31) facing the baffle (62) is provided with a plurality of guide holes (9), all the guide holes (9) correspond to all the limit heads (63) one by one, and the guide holes (9) can be unidirectionally connected to the inside of the outer sleeve (31); The guide rod (13) passes through the outer sleeve (31); the inner wall of the outer sleeve (31) is slidably and sealingly connected to two sliding sleeves (32); a plurality of springs (33) are arranged between each sliding sleeve (32) and the inner wall of the outer sleeve (31); a plurality of balls (34) are universally connected to the springs (33); all the balls (34) are in contact with the guide rod (13); and the cavity between the outer sleeve (31) and the sliding sleeve (32) is filled with lubricating oil.

2. The electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism according to claim 1, characterized in that: The sealing mechanism (7) comprises an electric telescopic seat (71) and a sealing stop seat (72); the electric telescopic seat (71) is arranged around the fixed template (16); the electric telescopic seat (71) is fixedly connected to the workbench (1) or the outer cover (2); the telescopic ends of the electric telescopic seat (71) are fixedly connected to the sealing stop seat (72); and the end of the sealing stop seat (72) facing the fixed template (16) is triangular.

3. The electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism according to claim 2, characterized in that: The cooling mechanism (8) comprises a water tank (81), a first hose (82) and a second hose (83); The sealing seats (72) are both connected with a No. 2 hose (83), the outer cover (2) is fixedly connected with a water tank (81), the water tank (81) and both ends of a sealing seat (72) are both connected with a No. 1 hose (82), and a water pump is arranged in the water tank (81).

4. The electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism according to claim 3, characterized in that: A plurality of guide plates (18) are obliquely arranged in the sealing block seat (72), and a guide channel is arranged at the end of the sealing block seat (72) close to the fixed template (16).

5. The electric injection molding machine with a high-rigidity, low-friction, compact mold clamping mechanism according to claim 2, characterized in that: The control system comprises: A monitoring module, comprising a plurality of pressure sensors and a plurality of temperature sensors, wherein the end of the sealing block (72) facing the fixed template (16) is provided with a pressure sensor and a temperature sensor; A storage module, which is used to store the maximum pressure difference between the pressure sensors and the temperature value of the temperature sensor at the same time; A processing module, which is used to compare the maximum pressure difference between the pressure sensors at the same time with the pressure difference threshold preset by the processing module, and to compare the temperature value of each temperature sensor with the preset temperature threshold, and respectively form judgment information; A control module is used to control the electric telescopic sleeve (5), the limiting mechanism (6), the sealing mechanism (7) and the cooling mechanism (8).

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