Injection mold locking mechanism

Abstract

According to the injection mold locking mechanism, synchronous mold locking is achieved through movement of a movable mold plate, when the movable mold plate is pushed by an electric control air cylinder, an inclined guide column drives a mold locking sliding block to conduct precise positioning, the movable mold plate and the fixed mold plate are attached and fixed, meanwhile, a top plate transversely moves to trigger a rack and a gear transmission system, and a limiting guide rod is driven to move reversely; the supporting plate structure is unfolded through the rotating shaft, then thrust is applied to the fixed mold base, the movable mold plate and the locking assembly cooperate, the movable mold plate and the fixed mold plate synchronously move from the two sides to the center to complete two-way locking, and it is guaranteed that accurate matching can be achieved only by debugging parameters of the movable mold plate when the mold is replaced through the synchronous transmission characteristic. Through the limiting arc block and the ejector rod, when a hard material product is ejected, the limiting arc block uniformly applies force in a large-area contact manner, so that ejection damage is avoided; when a soft material product is ejected out, high-pressure gas drives the limiting arc block to rotate around the rotating rod, a gap is generated, and gas impact is used for assisting demolding.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold locking mechanism. Background Art

[0002] Injection molds are precision tools used to mass-produce plastic products through the injection molding process. The core principle is to use an injection molding machine to inject molten plastic under high pressure into a closed cavity formed by a movable and fixed mold. After pressure maintenance and cooling to finalize the shape, the product is ejected from the mold via an ejection system. The mold utilizes a modular design, encompassing the molding system (core and cavity), the gating system (main runners, branch runners, and gates), the temperature control system (cooling channels or heating elements), and the demolding mechanism (ejector pins, ejector plates, or pneumatic devices). This allows for multi-cavity production within a single mold through precise cavity layout. When the existing injection mold is in use, its injection mold locking mechanism ensures that the movable and fixed molds are tightly closed through high-strength clamping force, prevents cavity overflow during high-pressure injection and ensures molding accuracy; however, the existing locking mechanism needs to be driven to apply a locking thrust to the template, and the movable template also needs to be driven to lock the movable template and the fixed template. Since the driving mechanisms at both ends need to be debugged and coordinated when in use, the parameters of the drives on both sides need to be re-debugged when the mold is replaced, which is time-consuming and labor-intensive and may lead to low device efficiency; and when the existing injection mold is undergoing injection molding, the injection molded product material is soft or hard. When the injection molded product is made of soft material, it is not easy for the ejector to apply thrust to unload the material. When the injection molded product is made of hard material, the ejector may cause whitening or damage to the product when unloading the material. Summary of the Invention

[0003] The present invention provides an injection mold locking mechanism to solve the above-mentioned problem.

[0004] To achieve the above object, the present invention provides the following technical solutions: An injection mold locking mechanism, comprising a mounting bracket, a control cabinet is provided on the inner wall of the mounting bracket, a fixed plate is symmetrically provided on the outer wall of the mounting bracket, a guide column is provided on the inner wall opposite to the fixed plate, a plurality of guide columns are provided and are respectively located at the corners of the fixed plate, a locking assembly is provided on the inner wall of the fixed plate, a fixed mold base is slidably connected to the inner wall of the guide column, a fixed mold base is provided on the base surface of the fixed mold base, wherein the fixed mold base and the guide column are connected in a sliding manner, a limiting slide groove is provided on the opposite inner wall of the fixed mold base, a locking slider is slidably connected to the inner wall of the limiting slide groove, a positioning spring is provided on the inner wall of the locking slider, and one end of the positioning spring is connected to the inner wall of the limiting slide groove, and an oblique guide groove is symmetrically provided on the outer wall of the locking slider; An ejection assembly is provided on the inner wall of the fixed template, an injection groove is provided on the outer wall of the fixed template, a movable template is slidably connected to the outer wall of the guide column on one side of the fixed template, an inclined guide column is embedded in the inner wall of the movable template, a plurality of groups of inclined guide columns are provided and respectively located on the inner wall of the movable template, the inclined guide columns are located on one side of the locking slider, and the connection method of the inclined guide columns and the inclined guide grooves is a sliding connection, an electric control cylinder is provided in a rectangular shape on the outer wall of the fixed plate on one side of the movable template, and one end of the electric control cylinder is connected to the movable template.

[0005] As a preferred solution of the present invention, the locking assembly includes a guide plate, a top plate, a first mounting plate and a second mounting plate. The guide plates are provided in two groups and are respectively located on the side walls of the fixed mold base. The top plate is installed on the side wall of the movable mold plate, and one end of the top plate is slidably connected to the inner wall of the guide plate. The first mounting plate is installed on the outer wall of the guide column. A second mounting plate is installed on one side of the first mounting plate and located on the outer wall of the guide column. Mounting grooves are symmetrically provided on the outer wall of the first mounting plate. A rotating shaft is provided on the inner wall of the mounting groove. The first support plate is rotatably connected to the outer wall of the rotating shaft.

[0006] As a preferred solution of the present invention, one end of the first support plate is rotatably connected to the second support plate through a rotating shaft, one end of the second support plate is rotatably connected to a limit plate, the limit plate is connected to the outer wall of the fixed mold base, one side of the first support plate and located on the outer wall of the rotating shaft is rotatably connected to a support plate, one end of the support plate is rotatably connected to the limit base, wherein the connection method of the limit base and the first mounting plate is a sliding connection, and a limit guide rod is installed on the outer wall of the limit base.

[0007] As a preferred solution of the present invention, one end of the limiting guide rod passes through the second mounting plate and the fixed plate in sequence, and a tooth groove is provided on one side of the second mounting plate and on the outer wall of the limiting guide rod, and a positioning guide rod is slidably connected to one side of the limiting guide rod and on the outer wall of the first mounting plate, one end of the positioning guide rod is slidably connected to the inner wall of the guide plate, and the positioning guide rod is located on one side of the top plate.

[0008] As a preferred solution of the present invention, the other end of the positioning guide rod passes through the first mounting plate and extends to the outer wall of the first mounting plate, on which a mounting block is installed, a rack is installed on the inner wall of the mounting block, a limiting spring is installed on one side of the rack and on the outer wall of the mounting block, one end of the limiting spring is connected to the outer wall of the second mounting plate, one end of the rack passes through the second mounting plate and extends to the outer wall of the second mounting plate, on which a fixing plate is slidably connected.

[0009] As a preferred solution of the present invention, a rotating rod is rotatably connected to one side of the rack and is located on the inner wall of the second mounting plate, a driven gear is installed on the outer wall of the rotating rod, a rack is meshedly connected to the outer wall of one side of the driven gear, and a tooth groove is meshedly connected to the outer wall of the other side of the driven gear.

[0010] As a preferred solution of the present invention, the ejection assembly includes a high-pressure air pump and a position-limiting ejection plate, the air outlet of the high-pressure air pump is equipped with an air guide tube, the air guide tube is embedded in the outer wall of the fixed mold plate, the position-limiting ejection plate is slidably connected to the inner wall of the fixed mold base, and the outer wall of the position-limiting ejection plate is arrayed with ejector rods, the ejector rods are hollow structures, and the outer wall of the ejector rods is connected to the air guide tube.

[0011] As a preferred solution of the present invention, a fixed block is embedded in the port of the ejector rod, a connecting block is rotatably connected to the outer wall of the fixed block through a rotating rod, a limiting arc block is installed on the outer wall of the connecting block, and the limiting arc block is plugged and connected to the port of the ejector rod, one end of the ejector rod passes through the fixed template, and the port of the ejector rod is flush with the bottom inner wall of the injection groove.

[0012] As a preferred solution of the present invention, a cooling water channel is provided on the inner wall of the fixed template, an injection hole is opened in the middle of the outer wall of the movable template, wherein the injection hole is located on one side of the injection groove, and a universal wheel is provided at the bottom corner of the mounting bracket. The control cabinet is respectively connected to the electric control cylinder and the high-pressure air pump through wires, and the connection method is electrical connection.

[0013] The locking assembly provided in the present invention can realize the displacement of the movable platen by driving the fixed platen through gear transmission, thereby causing the movable platen and the fixed platen to move toward the middle from both sides at the same time for locking. Synchronous mold locking is achieved through the movement of the movable platen. The movable platen and the locking assembly work together to cause the movable and fixed platens to move synchronously from both sides toward the center to complete two-way locking. Its synchronous transmission characteristics ensure that when replacing the mold, precise matching can be achieved by only debugging the movable platen parameters.

[0014] The present invention provides a locking assembly that can achieve gear transmission to lock the fixed mold plate, resulting in a better locking effect of the mechanical structure of the device, and automatically locking during injection molding. When injection molding is completed, the locking structure automatically unlocks. When the positioning guide rod loses the thrust of the top plate, the compressed limit spring is stretched and reset, thereby causing the limit spring to push the mounting block laterally to reset. At this time, the mounting block drives the rack to move in the opposite direction, thereby causing the rack to engage and drive the driven gear to reset in the opposite direction, which will reset the transmission structure in the locking assembly, thereby unlocking the fixed mold base to facilitate subsequent unloading, thereby solving the problem of low efficiency of the device caused by time and labor.

[0015] The present invention can realize the unloading of injection molded products of different materials by arranging an ejection component in the locking mechanism of the injection mold, so as to solve the problem that when the injection mold is performing injection molding, the materials of the injection molded products are soft and hard. When the injection molded product is made of soft material, it is not easy for the ejector to apply thrust to unload the product. When the injection molded product is made of hard material, the ejector will cause whitening or damage to the product when unloading the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the locking slider of the present invention; Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at A; Figure 4 It is a rear view structural schematic diagram of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at B; Figure 6 It is a side structural schematic diagram of the present invention; Figure 7 It is a schematic structural diagram of the ejection assembly of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at C.

[0017] In the figure: 1, mounting bracket; 2, control cabinet; 3, fixing plate; 4, guide column; 5, locking assembly; 501, guide plate; 502, top plate; 503, first mounting plate; 504, second mounting plate; 505, mounting groove; 506, rotating shaft; 507, first support plate; 508, rotating shaft; 509, second support plate; 510, limit plate; 511, support plate; 512, limit base; 513, limit guide rod; 514, tooth groove; 515, positioning guide rod; 516, mounting block; 517, rack; 518, limit Positioning spring; 519, rotating rod; 520, driven gear; 6, fixed mold base; 7, fixed mold plate; 8, limiting slide; 9, locking slide; 10, positioning spring; 11, inclined guide groove; 12, ejector assembly; 1201, high-pressure air pump; 1202, limiting ejector plate; 1203, air guide tube; 1204, ejector rod; 1205, fixed block; 1206, rotating rod; 1207, connecting block; 1208, limiting arc block; 13, injection groove; 14, moving mold plate; 15, inclined guide column; 16, electric cylinder; 17, universal wheel. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Example: See Figure 1-8 The shown injection mold locking mechanism includes a mounting bracket 1, a control cabinet 2 is provided on the inner wall of the mounting bracket 1, a fixed plate 3 is symmetrically provided on the outer wall of the mounting bracket 1, a guide column 4 is provided on the inner wall opposite to the fixed plate 3, a plurality of guide columns 4 are provided and are respectively located at the corners of the fixed plate 3, a locking assembly 5 is provided on the inner wall of the fixed plate 3, a fixed mold base 6 is slidably connected to the inner wall of the guide column 4, a fixed mold plate 7 is provided on the base surface of the fixed mold base 6, wherein the connection mode of the fixed mold plate 7 and the guide column 4 is a sliding connection, a limiting slide groove 8 is provided on the opposite inner wall of the fixed mold plate 7, a locking slider 9 is slidably connected to the inner wall of the limiting slide groove 8, a positioning spring 10 is provided on the inner wall of the locking slider 9, and one end of the positioning spring 10 is connected to the inner wall of the limiting slide groove 8, and an inclined guide groove 11 is symmetrically provided on the outer wall of the locking slider 9.

[0020] An ejection assembly 12 is provided on the inner wall of the fixed template 7, an injection groove 13 is opened on the outer wall of the fixed template 7, a movable template 14 is slidably connected to the outer wall of the guide column 4 on one side of the fixed template 7, and an inclined guide column 15 is embedded in the inner wall of the movable template 14. There are multiple groups of inclined guide columns 15 and they are respectively located on the inner wall of the movable template 14. The inclined guide columns 15 are located on one side of the locking slider 9, and the connection method of the inclined guide column 15 and the inclined guide groove 11 is a sliding connection. An electric control cylinder 16 is provided in a rectangular shape on one side of the movable template 14 and on the outer wall of the fixed plate 3, and one end of the electric control cylinder 16 is connected to the movable template 14.

[0021] In this embodiment, specific reference Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6The locking assembly 5 includes a guide plate 501, a top plate 502, a first mounting plate 503 and a second mounting plate 504. The guide plates 501 are provided in two groups and are respectively located on the side walls of the fixed mold base 6. The top plate 502 is installed on the side wall of the movable mold plate 14, and one end of the top plate 502 is slidably connected to the inner wall of the guide plate 501. The first mounting plate 503 is installed on the outer wall of the guide column 4. The second mounting plate 504 is installed on one side of the first mounting plate 503 and located on the outer wall of the guide column 4. The outer wall of the first mounting plate 503 is symmetrically provided with mounting grooves 505, and the inner wall of the mounting groove 505 is provided with a rotating shaft 506. A first support plate 507 is rotatably connected to the outer wall of the shaft 506, and one end of the first support plate 507 is rotatably connected to the second support plate 509 through the rotating shaft 508. One end of the second support plate 509 is rotatably connected to the limit plate 510, and the limit plate 510 is connected to the outer wall of the fixed mold base 6. A support plate 511 is rotatably connected to one side of the first support plate 507 and is located on the outer wall of the rotating shaft 508. One end of the support plate 511 is rotatably connected to the limit base 512, wherein the connection mode of the limit base 512 and the first mounting plate 503 is a sliding connection, and a limit guide rod 513 is installed on the outer wall of the limit base 512. One end of 513 passes through the second mounting plate 504 and the fixed plate 3 in sequence, and a tooth groove 514 is provided on one side of the second mounting plate 504 and on the outer wall of the limiting guide rod 513. A positioning guide rod 515 is slidably connected to one side of the limiting guide rod 513 and on the outer wall of the first mounting plate 503. One end of the positioning guide rod 515 is slidably connected to the inner wall of the guide plate 501, and the positioning guide rod 515 is located on one side of the top plate 502. The other end of the positioning guide rod 515 passes through the first mounting plate 503 and extends to the outer wall of the first mounting plate 503 where a mounting block 516 is installed. A rack 5 is installed on the inner wall of the mounting block 516. 17. A limit spring 518 is installed on one side of the rack 517 and located on the outer wall of the mounting block 516. One end of the limit spring 518 is connected to the outer wall of the second mounting plate 504. One end of the rack 517 passes through the second mounting plate 504 and extends to the outer wall of the second mounting plate 504 and is slidably connected to the fixing plate 3. One side of the rack 517 is located on the inner wall of the second mounting plate 504 and is rotatably connected to a rotating rod 519. A driven gear 520 is installed on the outer wall of the rotating rod 519. The rack 517 is meshed with the outer wall of one side of the driven gear 520, and the tooth groove 514 is meshed with the outer wall of the other side of the driven gear 520.

[0022] In this embodiment, specific reference Figure 1 、 Figure 3 、 Figure 4 、 Figure 7 and Figure 8The ejection assembly 12 includes a high-pressure air pump 1201 and a position-limiting ejection plate 1202. The air outlet of the high-pressure air pump 1201 is equipped with an air guide tube 1203, which is embedded in the outer wall of the fixed mold plate 7. The position-limiting ejection plate 1202 is slidably connected to the inner wall of the fixed mold base 6. The outer wall of the position-limiting ejection plate 1202 is arrayed with ejection rods 1204. The ejection rods 1204 are hollow structures, wherein the outer wall of the ejection rods 1204 is connected to the air guide tube 1 203. A fixed block 1205 is embedded in the port of the ejector rod 1204. A connecting block 1207 is rotatably connected to the outer wall of the fixed block 1205 through a rotating rod 1206. A limiting arc block 1208 is installed on the outer wall of the connecting block 1207. The limiting arc block 1208 is plugged and connected to the port of the ejector rod 1204. One end of the ejector rod 1204 passes through the fixed template 7, and the port of the ejector rod 1204 is flush with the bottom inner wall of the injection groove 13.

[0023] Based on the above-mentioned structural features and the effect of the connection relationship, since the connection between the limiting ejector plate 1202 and the fixed mold base 6 is a sliding connection, the limiting ejector plate 1202 and the mounting bracket 1 are limited at this time. When the fixed mold base 6 moves to one side, the fixed mold base 6 will drive the fixed mold plate 7 to move horizontally, so that the ejector rod 1204 moves into the inner cavity of the injection molding groove 13, and the end of the ejector rod 1204 is flush with the bottom inner wall of the injection molding groove 13. Conversely, when the fixed mold base 6 drives the fixed mold plate 7 to move in the opposite direction, the fixed mold base 6 will slide horizontally on the outer wall of the limiting ejector plate 1202, and the relative displacement between the two will cause the limiting ejector plate 1202 to drive the ejector rod 1204 to move out of the inner cavity of the injection molding groove 13, and the ejector rod 1204 will eject the product in the inner cavity of the injection molding groove 13.

[0024] Among them, a cooling water channel is provided on the inner wall of the fixed template 7, an injection hole is opened in the middle of the outer wall of the movable template 14, and the injection hole is located on one side of the injection groove 13. A universal wheel 17 is provided at the bottom corner of the mounting bracket 1, and the control cabinet 2 is connected to the electric control cylinder 16 and the high-pressure air pump 1201 through wires, and the connection method is electrical connection, so that the device is energized, and then the control cabinet 2 controls the electric control cylinder 16 and the high-pressure air pump 1201 to operate.

[0025] When the injection mold locking mechanism of this scheme is working, by turning on the switch of the control cabinet 2, the control cabinet 2 controls the electric control cylinder 16 to operate, and then one end of the electric control cylinder 16 applies a thrust to the movable template 14, which will cause the movable template 14 to move laterally on the outer wall of the guide column 4. When the movable template 14 moves further, it will drive the inclined guide column 15 to move, and then the movable template 14 is close to the fixed template 7. When the inclined guide column 15 is inserted into the inclined guide groove 11 of the locking slide 9, the inclined guide column 15 will apply a thrust to the locking slide 9 to move it to the injection position for limiting, and at the same time the movable template 14 and the fixed template 7 are fitted and fixed.

[0026] When the movable template 14 moves in real time, the movable template 14 will drive the top plate 502 to move laterally on the inner wall of the guide plate 501, thereby causing the top plate 502 to apply a thrust to the positioning guide rod 515. When the positioning guide rod 515 is subjected to force, the positioning guide rod 515 will drive the mounting block 516 to move laterally. At this time, the mounting block 516 drives the rack 517 to move to one side, and at the same time, the mounting block 516 applies a thrust to the limit spring 518 to squeeze it, causing the limit spring 518 to contract. The rack 517 shrinks and moves to one side on the inner wall of the second mounting plate 504, thereby causing the rack 517 to be engaged with and drive the driven gear 520 to rotate. When the driven gear 520 rotates, the tooth grooves 514 of the rack 517 and the limiting guide rod 513 are respectively located on the outer walls opposite to each other of the driven gear 520. The rack 517 and the limiting guide rod 513 move in opposite directions, causing the driven gear 520 to drive the limiting guide rod 513 to move in the opposite direction through the tooth grooves 514.

[0027] The limiting guide rod 513 pushes the limiting base 512 to move laterally. When the limiting base 512 moves, the limiting base 512 will apply a thrust to the rotating shaft 508 through the support plate 511. When the rotating shaft 508 applies a thrust, the rotating shaft 508 will be subjected to the tilting thrust of the support plate 511, thereby causing the rotating shaft 508 to move the first support plate 507 and the second support plate 509 to one side, thereby causing the first support plate 507 and the second support plate 509 to unfold, which will cause the second support plate 509 to apply a thrust to the limiting plate 510, and thereby causing the limiting plate 510 to apply a thrust to the fixed mold base 6, which will cause the fixed mold base 6 to be forced to move laterally on the outer wall of the guide column 4. Since the movable mold plate 14 is subjected to the electric control cylinder 1 6, it moves to one side under the push of the movable template 14, and at the same time, the movable template 14 passes through the gear transmission structure of the locking assembly 5, thereby causing the limit plate 510 of the locking assembly 5 to apply a lateral thrust to the fixed mold base 6, which will cause the fixed mold base 6 to drive the fixed template 7 to move laterally, and the movable template 14 will synchronously apply a reverse thrust to the fixed template 7 through the locking assembly 5, wherein the movable template 14 and the fixed template 7 move from both sides to the middle at the same time to be locked. Since the movable template 14 and the fixed template 7 are synchronously driven, when the mold is replaced, only the parameters of the movable template 14 need to be debugged, thereby solving the problem that the driving mechanisms at both ends need to be debugged for coordination when used, and when the mold is replaced, the parameters of the drives on both sides need to be re-debugged, which is time-consuming and labor-intensive and will lead to the problem of low efficiency of the device.

[0028] The molding material is injected into the molding groove 13 through the molding hole. After the injection molding is completed, the product is cooled through the cooling water channel, and then the electronically controlled cylinder 16 is reset. When the positioning guide rod 515 loses the thrust of the top plate 502, the compressed limit spring 518 will stretch and reset, and then the limit spring 518 will push the mounting block 516 laterally to reset. At this time, the mounting block 516 drives the rack 517 to move in the opposite direction, and then the rack 517 drives the driven gear 520 to reset in the opposite direction through the meshing connection, which will reset the transmission structure in the locking assembly 5, and then unlock the fixed mold base 6 for subsequent unloading.

[0029] The high-pressure air pump 1201 is controlled to operate by the control cabinet 2, so that the high-pressure air pump 1201 generates high-pressure gas which is injected into the ejector rod 1204 through the air guide pipe 1203. At the same time, the ejector rod 1204 is driven by the limiting ejector plate 1202, which drives the limiting arc block 1208 to eject the product in the inner cavity of the injection groove 13. The contact area between the limiting arc block 1208 and the product of the hard material is large, so that the force on the hard product is evenly distributed and not easy to be damaged, thereby enabling the hard material to be ejected and demolded. At the same time, when the limiting arc block 1208 contacts the product of the soft material, the high-pressure gas will be pushed up. The limiting arc block 1208, and then the limiting arc block 1208 rotates on the outer wall of the rotating rod 1206 through the connecting block 1207, will cause a gap between the limiting arc block 1208 and the port of the ejector rod 1204, and then the high-pressure gas will impact the product of the soft material, and the product of the soft material will be demolded by the impact of the gas, thereby solving the problem of the injection mold being used for injection molding, wherein the material of the injection molded product is soft or hard. When the injection molded product is made of soft material, it is not easy for the ejector to apply thrust to unload the product when the ejector is used, and when the injection molded product is made of hard material, it will cause the product to be whitened or damaged when the ejector is used.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold locking mechanism, comprising a mounting bracket (1), characterized in that: A control cabinet (2) is provided on the inner wall of the mounting bracket (1), a fixing plate (3) is symmetrically provided on the outer wall of the mounting bracket (1), a guide column (4) is provided on the inner wall opposite to the fixing plate (3), a plurality of guide columns (4) are provided and are respectively located at the corners of the fixing plate (3), a locking assembly (5) is provided on the inner wall of the fixing plate (3), a fixed mold base (6) is slidably connected to the inner wall of the guide column (4), and a fixed mold base (6) is provided on the base surface of the fixed mold base (6). There is a fixed plate (7), wherein the fixed plate (7) and the guide column (4) are connected in a sliding manner, a limiting slide groove (8) is provided on the opposite inner wall of the fixed plate (7), a locking slider (9) is slidably connected to the inner wall of the limiting slide groove (8), a positioning spring (10) is provided on the inner wall of the locking slider (9), and one end of the positioning spring (10) is connected to the inner wall of the limiting slide groove (8), and an oblique guide groove (11) is symmetrically provided on the outer wall of the locking slider (9); An ejection assembly (12) is provided on the inner wall of the fixed template (7), an injection groove (13) is provided on the outer wall of the fixed template (7), a movable template (14) is slidably connected on one side of the fixed template (7) and located on the outer wall of the guide column (4), an inclined guide column (15) is embedded in the inner wall of the movable template (14), a plurality of groups of the inclined guide columns (15) are provided and are respectively located on the inner wall of the movable template (14), the inclined guide columns (15) are located on one side of the clamping slider (9), and the connection mode of the inclined guide columns (15) and the inclined guide groove (11) is a sliding connection, an electric control cylinder (16) is provided in a rectangular shape on one side of the movable template (14) and located on the outer wall of the fixed plate (3), and one end of the electric control cylinder (16) is connected to the movable template (14).

2. The injection mold locking mechanism according to claim 1, characterized in that: The locking assembly (5) includes a guide plate (501), a top plate (502), a first mounting plate (503) and a second mounting plate (504), wherein the guide plates (501) are provided in two groups and are respectively located on the side walls of the fixed mold base (6), the top plate (502) is installed on the side wall of the movable mold plate (14), and one end of the top plate (502) is slidably connected to the inner wall of the guide plate (501), the first mounting plate (503) is installed on the outer wall of the guide column (4), the second mounting plate (504) is installed on one side of the first mounting plate (503) and located on the outer wall of the guide column (4), the outer wall of the first mounting plate (503) is symmetrically provided with mounting grooves (505), the inner wall of the mounting groove (505) is provided with a rotating shaft (506), and the outer wall of the rotating shaft (506) is rotatably connected to the first support plate (507).

3. The injection mold locking mechanism according to claim 2, characterized in that: One end of the first support plate (507) is rotatably connected to a second support plate (509) via a rotating shaft (508), one end of the second support plate (509) is rotatably connected to a limit plate (510), and the limit plate (510) is connected to the outer wall of the fixed mold base (6). A support plate (511) is rotatably connected to one side of the first support plate (507) and located on the outer wall of the rotating shaft (508), and one end of the support plate (511) is rotatably connected to a limit base (512), wherein the limit base (512) and the first mounting plate (503) are connected in a sliding manner, and a limit guide rod (513) is installed on the outer wall of the limit base (512).

4. The injection mold locking mechanism according to claim 3, characterized in that: One end of the limiting guide rod (513) passes through the second mounting plate (504) and the fixed plate (3) in sequence, and a tooth groove (514) is provided on one side of the second mounting plate (504) and on the outer wall of the limiting guide rod (513). A positioning guide rod (515) is slidably connected to one side of the limiting guide rod (513) and on the outer wall of the first mounting plate (503). One end of the positioning guide rod (515) is slidably connected to the inner wall of the guide plate (501), and the positioning guide rod (515) is located on one side of the top plate (502).

5. The injection mold locking mechanism according to claim 4, characterized in that: The other end of the positioning guide rod (515) passes through the first mounting plate (503) and extends to the outer wall of the first mounting plate (503), on which a mounting block (516) is installed. A rack (517) is installed on the inner wall of the mounting block (516). A limiting spring (518) is installed on one side of the rack (517) and located on the outer wall of the mounting block (516). One end of the limiting spring (518) is connected to the outer wall of the second mounting plate (504). One end of the rack (517) passes through the second mounting plate (504) and extends to the outer wall of the second mounting plate (504), on which a fixing plate (3) is slidably connected.

6. The injection mold locking mechanism according to claim 5, characterized in that: A rotating rod (519) is rotatably connected to one side of the rack (517) and is located on the inner wall of the second mounting plate (504). A driven gear (520) is mounted on the outer wall of the rotating rod (519). The rack (517) is meshedly connected to the outer wall of one side of the driven gear (520), and the tooth groove (514) is meshedly connected to the outer wall of the other side of the driven gear (520).

7. The injection mold locking mechanism according to claim 1, characterized in that: The ejection assembly (12) comprises a high-pressure air pump (1201) and a position-limiting ejection plate (1202); an air guide tube (1203) is installed at the air outlet of the high-pressure air pump (1201); the air guide tube (1203) is embedded in the outer wall of the fixed mold plate (7); the position-limiting ejection plate (1202) is slidably connected to the inner wall of the fixed mold base (6); ejection rods (1204) are arranged in an array on the outer wall of the position-limiting ejection plate (1202); the ejection rods (1204) are hollow structures, wherein the air guide tube (1203) is connected to the outer wall of the ejection rods (1204).

8. The injection mold locking mechanism according to claim 7, characterized in that: A fixed block (1205) is embedded in the port of the ejector rod (1204); a connecting block (1207) is rotatably connected to the outer wall of the fixed block (1205) via a rotating rod (1206); a limiting arc block (1208) is installed on the outer wall of the connecting block (1207); the limiting arc block (1208) is pluggably connected to the port of the ejector rod (1204); one end of the ejector rod (1204) passes through the fixed template (7), and the port of the ejector rod (1204) is flush with the bottom inner wall of the injection groove (13).

9. The injection mold locking mechanism according to claim 7, characterized in that: A cooling water channel is provided on the inner wall of the fixed platen (7), an injection hole is provided in the middle of the outer wall of the movable platen (14), wherein the injection hole is located on one side of the injection groove (13), a universal wheel (17) is provided at the bottom corner of the mounting bracket (1), and the control cabinet (2) is connected to the electric control cylinder (16) and the high-pressure air pump (1201) respectively through wires, and the connection method is electrical connection.

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