An injection molding machine mold clamping mechanism with adaptive and enhanced supporting force

Abstract

The present invention relates to the technical field of injection molding machines, and discloses an injection molding machine clamping mechanism that adaptively enhances supporting force, comprising a guide column, a fixed mold base, a movable mold base and a hydraulic base are arranged on the guide column, a hydraulic cylinder is arranged on the hydraulic base, a connecting base is arranged at the output end of the hydraulic cylinder, a first connecting shaft is arranged on the connecting base, a connecting rod component is arranged between the first connecting shaft, the hydraulic base and the movable mold base, the connecting rod component comprises a connecting rod member, the connecting rod member comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is movably connected to the first connecting shaft, and the other end is provided with a second connecting shaft, the second connecting shaft is parallel to the first connecting shaft, one end of the second connecting rod is movably connected to the second connecting shaft, and the other end is hinged to the movable mold base, one end of the third connecting rod is movably connected to the second connecting shaft, and the other end is hinged to the hydraulic base, and a locking mold assembly is arranged between the movable mold base and the fixed mold base.

Description

Technical Field

[0001] The invention relates to the field of injection molding machines, and in particular to a mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force. Background Art

[0002] Injection molding machine is also known as injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. During the use of the injection molding machine, the mold needs to be locked by a locking structure. The current locking structures mostly lock the fixed mold and the movable mold with each other through cylinder or hydraulic cylinder technology. For example, the Chinese invention patent application with publication number CN112406051A discloses an injection molding machine with an efficient locking mechanism, which uses a cylinder to drive the clamping block to press the movable mold plate, fully close the mold with the fixed mold plate, and achieve the purpose of locking. This locking method has some shortcomings, such as: injection molding takes a certain amount of time, so the cylinder needs to exert force for a long time, and the cylinder exerts force for a long time to lock the mold, which will cause damage to the structure of the cylinder; after the injection molding is completed, the locking structure needs to cancel the lock, and then open the mold, there is a pause in the middle, and the action connection is not smooth enough. When applied to the injection molding production line, the pause accumulation is more objective, which will affect the injection molding efficiency.

[0003] Based on the above, the present invention proposes a mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force. Summary of the invention

[0004] In order to solve the problems mentioned in the above background, the present invention provides a mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force, comprising a guide column arranged on a frame of the injection molding machine, a fixed mold seat, a movable mold seat and a hydraulic seat arranged on the guide column, a hydraulic cylinder arranged on the hydraulic seat, an output end of the hydraulic cylinder and the movable mold seat are connected via a connecting assembly, and a clamping assembly is arranged between the movable mold seat and the fixed mold seat;

[0007] The connecting assembly includes a connecting seat arranged at the output end of the hydraulic cylinder, a first connecting shaft is arranged on the connecting seat, the axial centerline direction of the first connecting shaft is perpendicular to the movement direction of the movable mold seat, a connecting rod component is arranged between the first connecting shaft, the hydraulic seat and the movable mold seat, the connecting rod component includes a connecting rod member, the connecting rod member includes a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is movably connected to the first connecting shaft, and the other end is provided with a second connecting shaft, the second connecting shaft is parallel to the first connecting shaft, one end of the second connecting rod is movably connected to the second connecting shaft, and the other end is hinged to the movable mold seat, and the hinge axis 1 formed at the hinge is parallel to the first connecting shaft, one end of the third connecting rod is movably connected to the second connecting shaft, and the other end is hinged to the hydraulic seat, and the hinge axis 2 formed at the hinge is parallel to the first connecting shaft.

[0008] Furthermore, two groups of connecting rod components are provided and are symmetrically located on both sides of the axis of the hydraulic cylinder, and two groups of connecting rod members in the same group of connecting rod components are provided and are respectively located at two ends of the first connecting shaft.

[0009] Furthermore, a guide rod is vertically arranged on the side of the movable mold seat away from the fixed mold seat, and the locking assembly includes a connecting bracket that is slidably connected to the guide rod, a nut is arranged at the end of the guide rod, and the outer sleeve of the guide rod is provided with a spring located between the nut and the connecting bracket, the connecting bracket is slidably connected to the guide column, and the connecting bracket includes a vertical rod. Initially, the vertical rod is located on the side of the second connecting shaft away from the movable mold seat, and during the mold closing process, the second connecting shaft can contact the vertical rod.

[0010] Furthermore, a fixed bracket is fixedly provided on the connecting bracket, and a locking rod is installed on the fixed bracket. The extension direction of the locking rod is parallel to the movement direction of the movable mold base. The end of the locking rod facing the fixed mold base is named the locking end and a mounting groove is provided on the side of the locking end facing the center line of the fixed mold base. A locking module is installed in the mounting groove. The locking module can be hidden in the mounting groove or partially extend out of the mounting groove. A locking step corresponding to the locking assembly is provided on the side of the fixed mold base.

[0011] Furthermore, a locking module is rotatably installed in the installation groove and a rotating shaft formed at the rotating installation position is parallel to the extension direction of the locking rod. The rotating shaft is dynamically connected to the motor arranged in the locking rod. Initially, the locking module is completely hidden in the installation groove and a plane arranged on the outer surface of the locking module blocks the notch of the installation groove.

[0012] Furthermore, the clamping rod is slidably mounted on a fixed bracket, and a hydraulic rod for driving the clamping rod to move is arranged on the fixed bracket.

[0013] Furthermore, a plurality of grooves are arranged in an array on the side of the clamping rod along its extension direction, and a clamping seat and a sliding seat are slidably mounted on the fixed bracket;

[0014] The sliding direction of the clamping seat is perpendicular to the extending direction of the locking rod. Two clamping seats are provided and are respectively located on both sides of the locking rod. A clamping block extends from one side of the clamping seat toward the locking rod. The clamping block is inserted into any one of the grooves. A second spring is provided between the clamping seat and the fixed bracket. The elastic force of the second spring drives the clamping seat close to the locking rod.

[0015] Furthermore, the slide is driven to move by a second linear module arranged on a fixed bracket, and an unlocking rod is extended from one side of the slide toward the clamping seat, and two inclined planes 1 are arranged at the end of the unlocking rod, and the distance between the two inclined planes 1 decreases along the mold closing direction of the movable mold seat, and an inclined plane 2 is arranged on one side of the clamping seat toward the slide, and the inclined planes 2 of the two clamping seats are respectively parallel to the two inclined planes 1.

[0016] Furthermore, a guide seat is slidably installed on the fixed bracket along the extension direction of the clamping rod, the clamping seat is installed on the guide seat, the second spring is arranged between the clamping seat and the guide seat, and a first linear module for driving the guide seat to move is arranged on the fixed bracket.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this scheme, when the mold is closed, the extension direction of the first connecting rod is perpendicular to the movement direction of the movable mold seat, and the extension directions of the second connecting rod and the third connecting rod are parallel to the movement direction of the movable mold seat. The significance of this is that in the subsequent injection molding process, the movable mold seat will inevitably be subjected to a reaction force opposite to the mold closing direction. This reaction force will eventually be transmitted through the second connecting rod and the third connecting rod and act on the hydraulic seat, but not on the hydraulic cylinder. That is, the hydraulic cylinder only drives the mold closing action. In the injection molding process after the mold is closed, the hydraulic cylinder will not be subjected to the corresponding reaction force, which plays a role in protecting the hydraulic cylinder.

[0019] 2. After the mold closing and clamping are completed, since the second connecting shaft is in contact with the vertical rod of the connecting bracket and the second connecting shaft is located on the side of the vertical rod facing the fixed mold seat, in the subsequent injection molding process, the movable mold seat will inevitably be subjected to a reaction force opposite to the mold closing direction. This reaction force acts on the vertical rod and the connecting bracket through the second connecting shaft, thereby giving the clamping rod a movement trend and the movement direction of the movement trend is opposite to the mold closing direction. This movement trend can make the locking module hook the clamping step more tightly, so the clamping effect is stronger, that is, the reaction force in the adaptive injection molding process is enhanced to enhance the clamping force;

[0020] Furthermore, only the motor is needed to drive the locking module to rotate, and then the clamping assembly moves together with the opening and closing action of the movable mold base, which makes the connection smoother, reduces the pause time, and improves the injection molding efficiency.

[0021] Furthermore, the clamping assembly of the present solution can adapt to the replacement of the injection molding machine mold and make corresponding adjustments, making it more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the present invention at the initial stage;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention after mold closing;

[0024] Figure 3 Schematic diagram of the movable mold base, hydraulic base, hydraulic cylinder and connecting components Figure 1 ;

[0025] Figure 4 Schematic diagram of the movable mold base, hydraulic base, hydraulic cylinder and connecting components Figure 2 ;

[0026] Figure 5 It is a schematic diagram of the clamping assembly and the movable mold base;

[0027] Figure 6 Schematic diagram of the structure of the clamping assembly Figure 1 ;

[0028] Figure 7 Schematic diagram of the structure of the clamping assembly Figure 2 ;

[0029] Figure 8 It is a schematic diagram of the clamping rod and the hydraulic rod;

[0030] Fig. 9 It is a partial schematic diagram of the clamping assembly;

[0031] Fig.10 Schematic diagram of the fixed die base;

[0032] Fig.11 This is the force analysis diagram of the existing fixed die base;

[0033] Fig.12 It is a force analysis diagram of the fixed mold base of the present invention.

[0034] The reference numerals in the accompanying drawings are:

[0035] 100, guide column; 101, fixed mold base; 1011, locking step; 1012, notch; 1013, reinforcing rib; 102, movable mold base; 103, hydraulic base; 104, hydraulic cylinder; 105, connecting assembly; 1051, connecting base; 1052, first connecting shaft; 1053, first connecting rod; 1054, second connecting shaft; 1055, second connecting rod; 1056, third connecting rod; 200, locking assembly; 201, connecting bracket; 202, guide rod; 203, spring 1; 204, locking rod; 205, groove; 206, motor; 207, locking module; 208, hydraulic rod; 209, fixed bracket; 210, guide base; 211, first linear module; 212, clamping base; 213, clamping block; 214, slide seat; 215, unlocking rod; 216, second linear module. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0037] In the attached drawings of this scheme, a refers to the fixed mold of the injection molding machine, and b refers to the dynamic mold of the injection molding machine.

[0038] Reference Figure 1-Figure 12 A mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force comprises a guide column 100 arranged on a frame of the injection molding machine, a fixed mold seat 101, a movable mold seat 102 and a hydraulic seat 103 are arranged on the guide column 100, wherein the fixed mold seat 101 and the movable mold seat 102 are respectively arranged on the sides facing each other with a fixed mold of the injection molding machine and a movable mold of the injection molding machine, a hydraulic cylinder 104 is arranged on the hydraulic seat 103, and the output end of the hydraulic cylinder 104 is connected to the movable mold seat 102 through a connecting component 105. When the hydraulic cylinder 104 is started The movable mold base 102 is driven to move through the connecting component 105 to achieve mold closing or mold opening. A clamping component 200 is arranged between the movable mold base 102 and the fixed mold base 101. When the mold is closed, the movable mold base 102 and the fixed mold base 101 are locked by the clamping component 200. When the mold is opened, the clamping component 200 is released. The locking or releasing of the clamping component 200 is driven by the connecting component 105. Therefore, the connection between the mold closing and locking actions and the mold opening and releasing actions is smooth, and the delay is almost zero.

[0039] 1. Connecting component 105:

[0040] Reference Figure 3 and Figure 4The connecting assembly 105 includes a connecting seat 1051 arranged at the output end of the hydraulic cylinder 104, and a first connecting shaft 1052 is arranged on the connecting seat 1051. The axis direction of the first connecting shaft 1052 is perpendicular to the movement direction of the movable mold base 102. A connecting rod component is arranged between the first connecting shaft 1052, the hydraulic seat 103 and the movable mold base 102. Preferably, two groups of connecting rod components are arranged and are symmetrically located on both sides of the axis of the hydraulic cylinder 104.

[0041] The connecting rod component includes a connecting rod member. Preferably, two groups of connecting rod members are provided and are respectively located at two ends of the first connecting shaft 1052.

[0042] The connecting rod member includes a first connecting rod 1053, a second connecting rod 1055 and a third connecting rod 1056, wherein one end of the first connecting rod 1053 is movably connected to the first connecting shaft 1052, and the other end is provided with a second connecting shaft 1054, and the second connecting shaft 1054 is parallel to the first connecting shaft 1052; one end of the second connecting rod 1055 is movably connected to the second connecting shaft 1054, and the other end is hinged to the movable mold base 102, and the hinge axis 1 formed at the hinge is parallel to the first connecting shaft 1052; one end of the third connecting rod 1056 is movably connected to the second connecting shaft 1054, and the other end is hinged to the hydraulic seat 103, and the hinge axis 2 formed at the hinge is parallel to the first connecting shaft 1052; further, the second connecting shaft 1054, the hinge axis 1 and the hinge axis 2 in the connecting rod member are correspondingly formed in two, and the two can be the same axis.

[0043] The working process of the connection component 105 is as follows:

[0044] Initially, the injection molding machine is not closed, and the state of the connecting component 105 is as follows: Figure 3 As shown;

[0045] When mold closing is required, the hydraulic cylinder 104 is started to drive the connecting seat 1051 to move closer to the fixed mold seat 101. When the connecting seat 1051 moves, the movable mold seat 102 can be driven close to the fixed mold seat 101 through the cooperation of the connecting rod, that is, the mold closing action occurs, and when the mold closing is completed, the extension direction of the first connecting rod 1053 is perpendicular to the movement direction of the movable mold seat 102, and the extension directions of the second connecting rod 1055 and the third connecting rod 1056 are parallel to the movement direction of the movable mold seat 102. The significance of this is that the subsequent injection molding process In the process, the movable mold base 102 will inevitably receive a reaction force opposite to the mold closing direction. This reaction force will eventually be transmitted through the second connecting rod 1055 and the third connecting rod 1056, and act on the hydraulic base 103, but will not act on the hydraulic cylinder 104, that is, the hydraulic cylinder 104 only drives the mold closing action. During the injection molding process after the mold closing is completed, the hydraulic cylinder 104 will not receive the corresponding reaction force, which plays a role in protecting the hydraulic cylinder 104. The mold closing direction refers to the movement direction of the movable mold base 102 during mold closing;

[0046] It should be noted that the hydraulic cylinder 104, the air cylinder and other technologies are easily damaged if they exert force for a long time, which will affect the service life. Therefore, it is necessary to avoid the reaction force acting on the hydraulic cylinder 104 after the mold is closed.

[0047] After the injection molding is completed, the hydraulic cylinder 104 drives the connecting seat 1051 to move away from the fixed mold seat 101, thereby realizing the mold opening action.

[0048] 2. Clamping assembly 200:

[0049] Reference Figure 5-Figure 10 A guide rod 202 is vertically arranged on the side of the movable mold base 102 away from the fixed mold base 101. The clamping assembly 200 includes a connecting bracket 201 that is slidably connected to the guide rod 202. A nut is arranged at the end of the guide rod 202. A spring 203 is arranged between the nut and the connecting bracket 201. Figure 1 and Figure 2 The connecting bracket 201 is slidably connected to the guide column 100, and the connecting bracket 201 includes a vertical rod. Initially, the vertical rod is located on the side of the second connecting shaft 1054 away from the movable mold base 102, and during the mold closing process, the second connecting shaft 1054 can contact the vertical rod.

[0050] A fixed bracket 209 is fixedly arranged on the connecting bracket 201, and a locking rod 204 is installed on the fixed bracket 209. The extension direction of the locking rod 204 is parallel to the movement direction of the movable mold base 102. The end of the locking rod 204 facing the fixed mold base 101 is named the locking end. A mounting groove is arranged on the side of the locking end of the locking rod 204 facing the center line of the fixed mold base 101. A locking module 207 is rotatably installed in the mounting groove, and a rotating shaft formed at the rotating installation position is parallel to the extension direction of the locking rod 204. The rotating shaft is dynamically connected with a motor 206 arranged in the locking rod 204. Initially, the locking module 207 is completely hidden in the mounting groove, and a plane arranged on the outer surface of the locking module 207 blocks the notch of the mounting groove. When the motor 206 drives the rotating shaft to rotate one hundred and eighty degrees, the locking module 207 partially extends out of the mounting groove and the extended part reaches a maximum value.

[0051] Reference Fig.10 A locking step 1011 corresponding to the locking assembly 200 is provided on the side of the fixed mold base 101 .

[0052] The clamping process of the clamping assembly 200 is as follows:

[0053] During the mold closing process, at the beginning, the movable mold base 102 moves with the connecting bracket 201, that is, moves with the mold clamping assembly 200. When the movable mold base 102 is about to contact with the fixed mold base 101, the installation groove passes over the mold clamping step 1011, and the second connecting shaft 1054 contacts the vertical rod of the connecting bracket 201. At this time, the motor 206 drives the rotating shaft to rotate, so that the locking module 207 partially extends out of the installation groove;

[0054] After that, the mold closing continues. With the movable mold base 102 as a reference, the second connecting shaft 1054 will deflect around the hinge axis 1. The deflection action acts on the vertical rod, causing the connecting bracket 201 to move away from the fixed mold base 101. This movement causes the locking module 207 to tightly hook the locking step 1011, thereby achieving the purpose of mold locking.

[0055] When the mold is opened after the injection molding is completed, first, the motor 206 drives the rotating shaft to rotate, and the locking module 207 releases the hook on the locking step 1011. Then, the hydraulic cylinder 104 moves in the opposite direction to realize the mold opening action. At the same time, the spring 1 203 releases the elastic force to restore the relative position relationship between the locking assembly 200 and the movable mold base 102.

[0056] From the above, it can be seen that after the mold closing is completed, since the second connecting shaft 1054 is in contact with the vertical rod of the connecting bracket 201 and the second connecting shaft 1054 is located on the side of the vertical rod facing the fixed mold base 101, therefore, in the subsequent injection molding process, the movable mold base 102 will inevitably be subjected to a reaction force opposite to the mold closing direction. This reaction force acts on the vertical rod and the connecting bracket 201 through the second connecting shaft 1054, thereby giving the clamping rod 204 a movement trend and the movement direction of the movement trend is opposite to the mold closing direction. This movement trend can make the locking module 207 more hooked to the clamping step 1011. Therefore, the clamping effect is stronger, that is, the reaction force in the adaptive injection molding process is enhanced to enhance the clamping force, that is, to achieve the effect of adaptively enhancing the supporting force. The supporting force here refers to the force supporting the mold closing, that is, the clamping force.

[0057] 3. Adjustment of the clamping assembly 200:

[0058] When producing plastic parts of similar size but different shapes, it is costly to purchase another injection molding production line. Therefore, in the prior art, the mold of the injection molding machine is generally replaced directly, and then the injection molding operation parameters are adjusted. In this case, the clamping structure also needs to be adjusted accordingly. Therefore:

[0059] Reference Figure 7-10 The side surface of the clamping rod 204 is provided with a plurality of grooves 205 in an array along its extension direction. The clamping rod 204 is slidably mounted on a fixed bracket 209 , and a hydraulic rod 208 is provided on the fixed bracket 209 for driving the clamping rod 204 to move.

[0060] A clamping seat 212 and a sliding seat 214 are slidably mounted on the fixed bracket 209 .

[0061] The sliding direction of the clamping seat 212 is perpendicular to the extending direction of the locking rod 204. Two clamping seats 212 are provided and are respectively located on both sides of the locking rod 204. A clamping block 213 extends from one side of the clamping seat 212 toward the locking rod 204. The clamping block 213 is inserted into any one of the grooves 205. A spring 2 is provided between the clamping seat 212 and the fixed bracket 209. The elastic force of the spring 2 drives the clamping seat 212 close to the locking rod 204.

[0062] The slide 214 is driven to move by a second linear module 216 disposed on the fixed bracket 209 . A unlocking rod 215 extends from the slide 214 toward one side of the clamping base 212 . Two inclined surfaces 1 are disposed at the end of the unlocking rod 215 . The distance between the two inclined surfaces 1 decreases along the mold closing direction of the movable mold base 102 .

[0063] A second inclined surface is disposed on one side of the clamping seat 212 facing the sliding seat 214 , and the second inclined surfaces of the two clamping seats 212 are parallel to the two first inclined surfaces respectively.

[0064] When the mold of the injection molding machine is replaced, the initial position relationship between the mold locking rod 204 of the mold locking assembly 200 and the movable mold base 102 is adjusted according to the thickness of the replaced mold. Specifically, the slide 214 is driven to move by the second linear module 216, and the slide 214 moves with the unlocking rod 215. Under the cooperation of the first inclined plane and the second inclined plane, the two clamping seats 212 move away from each other, and the clamping block 213 leaves the groove 205, and the restriction on the mold locking rod 204 is cancelled;

[0065] Afterwards, the hydraulic rod 208 drives the locking rod 204 to move and adjust the position. After the adjustment is completed, the second linear module 216 drives the slide 214 to retreat, and the spring 2 releases the elastic force, so that the block 213 is reinserted into the groove 205 to impose restrictions on the locking rod 204.

[0066] In the preferred embodiment, during the above adjustment process, since the block 213 needs to be inserted into the groove 205, the moving distance of the clamping rod 204 when adjusting the position needs to be an integer multiple of the distance between two adjacent grooves 205. This undoubtedly imposes requirements on the replacement of the injection molding machine mold. In order to solve this problem, refer to Fig. 9A guide seat 210 is slidably installed on the fixed bracket 209 along the extension direction of the locking rod 204, a clamping seat 212 is installed on the guide seat 210, a spring 2 is arranged between the clamping seat 212 and the guide seat 210, and a first linear module 211 for driving the guide seat 210 to move is arranged on the fixed bracket 209; in this way, when the mold of the injection molding machine is replaced, if the moving distance of the locking rod 204 during position adjustment is not an integer multiple of the distance between two adjacent grooves 205, the guide seat 210 can be driven to move by the first linear module 211, and the guide seat 210 moves with the clamping seat 212, so that the clamping block 213 can be aligned with the groove 205, and then the clamping block 213 can be reinserted into the groove 205.

[0067] 4. Fixed mold base 101:

[0068] Reference Figure 10-12 A notch 1012 is respectively arranged at the four corners of the fixed mold base 101. The notch 1012 divides the corner of the locking mold base 101 into two parts. The part away from the movable mold base 102 is fixed to the guide column 100 and is named the connecting section. The other part is provided with an avoidance opening for avoiding the guide column 100. The significance of such a setting is that when the mold is closed, the fixed mold base 101 will be subjected to a reaction force, and this reaction force will act on the connecting section connected to the guide column 100. If the reaction force is too large, the connecting section will be deformed, and it will not bring a large deformation effect to the fixed mold base 101. The existing fixed mold base does not have the notch 1012. Therefore, the reaction force will act on the entire fixed mold base, which may easily cause the overall deformation of the fixed mold base to be too large and affect the injection molding process.

[0069] Furthermore, reinforcing ribs 1013 are provided on the four side surfaces of the fixed mold base 101 .

[0070] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force, comprising a guide column (100) arranged on a frame of the injection molding machine, wherein a fixed mold seat (101), a movable mold seat (102) and a hydraulic seat (103) are arranged on the guide column (100), characterized in that: A hydraulic cylinder (104) is disposed on the hydraulic seat (103); an output end of the hydraulic cylinder (104) is connected to the movable die seat (102) via a connecting assembly (105); and a clamping assembly (200) is disposed between the movable die seat (102) and the fixed die seat (101); The connecting assembly (105) comprises a connecting seat (1051) arranged at the output end of the hydraulic cylinder (104); a first connecting shaft (1052) is arranged on the connecting seat (1051); the axis direction of the first connecting shaft (1052) is perpendicular to the movement direction of the movable mold seat (102); a connecting rod component is arranged between the first connecting shaft (1052), the hydraulic seat (103) and the movable mold seat (102); the connecting rod component comprises a connecting rod member, and the connecting rod member comprises a first connecting rod (1053), a second connecting rod (1055) and a third connecting rod (1056); one end of the first connecting rod (1053) is connected to the second connecting rod (1055) and the third connecting rod (1056); A connecting shaft (1052) is movably connected, and a second connecting shaft (1054) is provided at the other end, and the second connecting shaft (1054) is parallel to the first connecting shaft (1052); one end of a second connecting rod (1055) is movably connected to the second connecting shaft (1054), and the other end is hinged to the movable mold base (102), and a hinge axis 1 formed at the hinge is parallel to the first connecting shaft (1052); one end of a third connecting rod (1056) is movably connected to the second connecting shaft (1054), and the other end is hinged to the hydraulic base (103), and a hinge axis 2 formed at the hinge is parallel to the first connecting shaft (1052); Two groups of connecting rod components are provided and are symmetrically located on both sides of the axis of the hydraulic cylinder (104); two groups of connecting rod members in the same group of connecting rod components are provided and are respectively located at two ends of the first connecting shaft (1052); A guide rod (202) is vertically arranged on the side of the movable mold base (102) away from the fixed mold base (101); the mold locking assembly (200) comprises a connecting bracket (201) which is slidably connected to the guide rod (202); a nut is arranged at the end of the guide rod (202); a spring (203) is sleeved on the outside of the guide rod (202) and is located between the nut and the connecting bracket (201); the connecting bracket (201) is slidably connected to the guide column (100); the connecting bracket (201) comprises a vertical rod; initially, the vertical rod is located on the side of the second connecting shaft (1054) away from the movable mold base (102); and during the mold closing process, the second connecting shaft (1054) can come into contact with the vertical rod; A fixed bracket (209) is fixedly arranged on the connecting bracket (201), and a clamping rod (204) is installed on the fixed bracket (209). The extension direction of the clamping rod (204) is parallel to the movement direction of the movable mold base (102). The end of the clamping rod (204) facing the fixed mold base (101) is named the clamping end, and a mounting groove is arranged on the side of the clamping end facing the center line of the fixed mold base (101). A locking module (207) is installed in the mounting groove. The locking module (207) can be hidden in the mounting groove or partially extend out of the mounting groove. A clamping step (1011) corresponding to the clamping assembly (200) is arranged on the side of the fixed mold base (101).

2. The mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force according to claim 1, characterized in that: A locking module (207) is rotatably mounted in the mounting groove, and a rotating shaft formed at the rotating mounting position is parallel to the extension direction of the mold locking rod (204). The rotating shaft is power-connected to a motor (206) disposed in the mold locking rod (204). Initially, the locking module (207) is entirely hidden in the mounting groove, and a plane disposed on the outer surface of the locking module (207) blocks the notch of the mounting groove.

3. The mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force according to claim 1, characterized in that: The mold locking rod (204) is slidably mounted on a fixed bracket (209), and a hydraulic rod (208) for driving the mold locking rod (204) to move is arranged on the fixed bracket (209).

4. The mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force according to claim 3, characterized in that: A plurality of grooves (205) are arranged in an array on the side surface of the clamping rod (204) along its extension direction, and a clamping seat (212) and a sliding seat (214) are slidably mounted on the fixed bracket (209); The sliding direction of the clamping seat (212) is perpendicular to the extension direction of the mold locking rod (204); two clamping seats (212) are provided and are respectively located on both sides of the mold locking rod (204); a clamping block (213) extends from one side of the clamping seat (212) toward the mold locking rod (204); and the clamping block (213) is inserted into any one of the grooves (205).

5. The mold clamping mechanism for an injection molding machine with adaptively enhanced supporting force according to claim 4, characterized in that: The slide (214) is driven to move by a second linear module (216) arranged on the fixed bracket (209); an unlocking rod (215) extends from one side of the slide (214) toward the clamping seat (212); two inclined planes 1 are arranged at the end of the unlocking rod (215); the distance between the two inclined planes 1 decreases along the mold closing direction of the movable mold seat (102); and an inclined plane 2 is arranged on one side of the clamping seat (212) toward the slide (214); the inclined planes 2 of the two clamping seats (212) are respectively parallel to the two inclined planes 1.

6. The self-adaptive and support-enhanced mold clamping mechanism for an injection molding machine according to claim 5, characterized in that: A guide seat (210) is slidably mounted on the fixed bracket (209) along the extension direction of the clamping rod (204), a clamping seat (212) is mounted on the guide seat (210), a second spring is arranged between the clamping seat (212) and the guide seat (210), and a first linear module (211) for driving the guide seat (210) to move is arranged on the fixed bracket (209).

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