Mold locking device of injection molding machine

Abstract

The utility model discloses an injection molding machine mold locking device which comprises a base, a fixing frame is installed at the top of the base, pressing air cylinders are fixedly installed at the two ends of the top of the fixing frame, the pressing air cylinders penetrate through the output end of the fixing frame and are fixedly connected with a clamping base, an upper mold is connected to the inner side of the clamping base in a clamped mode, and sealing positioning columns are fixedly connected to the periphery of the bottom of the upper mold. A lower die is arranged in the center of the top of the base, and sealing positioning grooves are formed in the periphery of the top of the lower die. Through the arrangement of the base, the fixing frame, the pressing air cylinder, the clamping base, the upper mold, the sealing positioning column, the lower mold, the sealing positioning groove and other parts, the mold on the injection molding machine can conveniently achieve the mold locking effect; and meanwhile, by arranging an electric telescopic rod, a clamping plate, a clamping block, a first clamping groove, a second clamping groove and other parts, the stability of the mold during mold locking is conveniently improved, then the quality of an injection molding product is improved, and the mold can be conveniently opened to demold the product in the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a mold locking device for an injection molding machine. Background Art

[0002] Injection molding machine is also called 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. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] After searching, in the prior art, Chinese patent application number: CN202021412239.7 discloses a locking device of an injection molding machine. The utility model comprises an injection molding table, on which a movable template and a fixed template are arranged, the movable template is slidably connected to the injection molding table, and a fixed cylinder is arranged on the side of the movable template away from the fixed template, the piston rod of the fixed cylinder is vertically fixed to the movable template, and two parallel clamps are arranged on the opposite surfaces of the movable template and the fixed template, respectively, and a plurality of fixing holes are arranged on the template between the two clamps, and a strong spring is fixed in the fixed hole, and the natural length of the strong spring is greater than the depth of the fixed hole, a movable mold is arranged on the movable template, and a fixed mold is arranged on the fixed template; the technical effect is to control the pressure applied to the mold so that the mold is not damaged.

[0004] However, the prior art and the device also have the following defects:

[0005] The existing mold locking device is fixed by locking bolts when locking and fixing the upper mold and the lower mold on the injection molding machine, which makes it inconvenient to open the mold and reduces the efficiency of mold opening. Utility Model Content

[0006] The utility model aims to provide a mold locking device for an injection molding machine. The utility model is provided with a base, a fixing frame, a clamping cylinder, a clamping seat, an upper mold, a sealing positioning column, a lower mold, a sealing positioning groove, an electric telescopic rod, a clamping plate, a clamping block, a first clamping groove and a second clamping groove, etc., so as to facilitate improving the stability of the mold during mold locking, and also improve the quality of the injection molded product, and also facilitate opening the mold to demold the product therein; so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A mold locking device for an injection molding machine comprises a base, a fixing frame is installed on the top of the base, a clamping cylinder is fixedly installed at both ends of the top of the fixing frame, the clamping cylinder passes through the output end of the fixing frame and is fixedly connected with a clamping seat, an upper mold is clamped on the inner side of the clamping seat, a sealing positioning column is fixedly connected around the bottom of the upper mold, a lower mold is provided at the top center of the base, a sealing positioning groove is opened around the top of the lower mold, and the sealing positioning column is sealingly clamped in the inside of the sealing positioning groove;

[0009] An electric telescopic rod is fixedly installed on the lower part of both sides of the fixing frame through a support seat, and the output end of the electric telescopic rod that passes through the inside of the fixing frame is fixedly connected to a clamping plate, and clamping blocks are fixedly installed around the inner side of the clamping plate. First clamping grooves are opened at both ends below both sides of the upper mold, and second clamping grooves are opened at both ends above both sides of the lower mold, and the clamping blocks around the inner side of the fixing plate are respectively clamped in the first clamping groove and the second clamping groove.

[0010] Preferably, fixing plates are provided on both sides of the base, and fixing blocks are fixedly connected to the inner sides of the fixing plates. First fixing grooves are opened at both ends of both sides of the base, and second fixing grooves are opened at both ends above both sides of the upper mold, and the first fixing groove and the second fixing groove are symmetrical.

[0011] Preferably, the fixing blocks around the inner side of the fixing block are respectively clamped in the inside of the first fixing groove and the second fixing groove.

[0012] Preferably, a mounting seat is installed at the top center of the base, and the lower mold is clamped inside the mounting seat.

[0013] Preferably, micro-coolers are installed at both ends of the front and back sides of the mounting seat, and cooling air outlets are opened at the upper and lower ends of the front and back side walls inside the mounting seat.

[0014] Preferably, an injection molding machine body is installed at the back end of the top of the base, and two sets of delivery pipes are installed at the output end of the injection molding machine body, and one end of the delivery pipe is sealed and connected to the corresponding feed port opened on the back of the lower mold.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a base, a fixing frame, a clamping cylinder, a clamping seat, an upper mold, a sealing positioning column, a lower mold and a sealing positioning groove and other components for use in coordination, so as to facilitate the mold on the injection molding machine to play a role in mold locking; at the same time, by providing an electric telescopic rod, a clamping plate, a clamping block, a first clamping groove and a second clamping groove and other components for coordination, it is convenient to improve the stability of the mold when the mold is locked, thereby improving the quality of the injection molded product, and it is also convenient to open the mold to demould the product inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall rear view structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the separation structure of the upper mold and the lower mold of the utility model;

[0020] Figure 4 This is a schematic diagram of the separation structure of the card holder and the fixed plate of the utility model;

[0021] Figure 5 It is a schematic diagram of the separation structure of the lower mold and the mounting seat of the utility model.

[0022] In the figure: 1. base; 2. fixing frame; 3. clamping cylinder; 4. holder; 5. upper mold; 6. sealing positioning column; 7. first fixing groove; 8. second fixing groove; 9. fixing plate; 10. fixing block; 11. lower mold; 12. sealing positioning groove; 13. feed port; 14. injection molding machine body; 15. conveying pipe; 16. mounting seat; 17. micro cooler; 18. cooling air outlet; 19. electric telescopic rod; 20. clamping plate; 21. clamping block; 22. first clamping groove; 23. second clamping groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5 , the utility model provides a technical solution:

[0025] A mold clamping device for an injection molding machine includes a base 1, a fixing frame 2 is installed on the top of the base 1, and a clamping cylinder 3 is fixedly installed at both ends of the top of the fixing frame 2. The clamping cylinder 3 passes through the output end of the fixing frame 2 and is fixedly connected to a clamping seat 4. An upper mold 5 is clamped on the inner side of the clamping seat 4. A sealing positioning column 6 is fixedly connected around the bottom of the upper mold 5, and a lower mold 11 is provided at the top center of the base 1. A sealing positioning groove 12 is opened around the top of the lower mold 11. The sealing positioning column 6 is sealed and clamped in the sealing positioning groove 12. The interior of the fixed frame 2 is fixedly installed with an electric telescopic rod 19 through a support seat at the lower part of both sides, and the output end of the electric telescopic rod 19 that passes through the fixed frame 2 is fixedly connected with a clamping plate 20, and a clamping block 21 is fixedly installed around the inner side of the clamping plate 20. The two ends below the two sides of the upper mold 5 are provided with a first clamping groove 22, and the two ends above the two sides of the lower mold 11 are provided with a second clamping groove 23, and the clamping blocks 21 around the inner side of the fixed plate 9 are respectively clamped in the first clamping groove 22 and the second clamping groove 23.

[0026] The utility model provides a base 1, a fixing frame 2, a clamping cylinder 3, a clamping seat 4, an upper mold 5, a sealing positioning column 6, a lower mold 11 and a sealing positioning groove 12 and other components for use in coordination, so as to facilitate the mold on the injection molding machine to play a role in mold locking; at the same time, by providing an electric telescopic rod 19, a clamping plate 20, a clamping block 21, a first clamping groove 22 and a second clamping groove 23 and other components for coordination, it is convenient to improve the stability of the mold when the mold is locked, thereby improving the quality of the injection molded product, and it is also convenient to open the mold to demould the product inside.

[0027] By starting the clamping cylinder 3, its output end drives the upper mold 5 inside the holder 4 to move downward, so that the sealing positioning columns 6 arranged around the bottom of the lower mold 11 are inserted into the corresponding sealing positioning grooves 12 opened on the top of the lower mold 11, thereby facilitating the sealing and locking of the upper mold 5 and the lower mold 11. At this time, by starting the electric telescopic rod 19, its output end drives the clamping plate 20 to approach the upper mold 5 and the lower mold 11, so that the clamping blocks 21 arranged around the inner side of the clamping plate 20 are inserted into the first clamping grooves 22 and the second clamping grooves 23 arranged on the upper mold 5 and the lower mold 11, thereby facilitating the improvement of the mold locking effect and facilitating the rapid opening of the upper mold 5 from the lower mold 11.

[0028] Fixed plates 9 are provided on both sides of the base 4, and fixed blocks 10 are fixedly connected to the inner sides of the fixed plates 9. First fixed grooves 7 are provided at both ends of both sides of the base 4, and second fixed grooves 8 are provided at both ends above both sides of the upper mold 5, and the first fixed grooves 7 and the second fixed grooves 8 are symmetrical, and the fixed blocks 10 around the inner sides of the fixed blocks 10 are respectively clamped in the first fixed grooves 7 and the second fixed grooves 8.

[0029] By arranging the first fixing groove 7, the second fixing groove 8, the fixing plate 9 and the fixing block 10 and other components, it is convenient to improve the installation stability of the upper mold 5 when it is installed on the base 4, and it is also convenient to disassemble, clean and replace the upper mold 5.

[0030] A mounting seat 16 is installed at the top center of the base 1, and the lower mold 11 is clamped inside the mounting seat 16. Micro coolers 17 are installed at both ends of the front and back of the mounting seat 16, and cooling air outlets 18 are opened at the upper and lower ends of the front and back side walls inside the mounting seat 16.

[0031] By starting the micro-cooler 17, it can deliver cold air to the lower mold 11 through the cooling air port 18 opened on the inner side of the mounting seat 16, so as to cool the product injected in the mold.

[0032] An injection molding machine body 14 is installed at the back end of the top of the base 1 , and two sets of delivery pipes 15 are installed at the output end of the injection molding machine body 14 . One end of the delivery pipe 15 is sealed and connected to the corresponding feed port 13 opened at the back of the lower mold 11 .

[0033] By starting the injection molding machine body 14, it is made to inject the interior of the lower mold 11 and the upper mold 5 through the conveying pipe 15, so that the injected material passes through the mold to form a product.

[0034] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold clamping device for an injection molding machine, comprising a base (1), characterized in that: A fixing frame (2) is installed on the top of the base (1), and a clamping cylinder (3) is fixedly installed at both ends of the top of the fixing frame (2). The clamping cylinder (3) passes through the output end of the fixing frame (2) and is fixedly connected to a clamping seat (4). An upper mold (5) is clamped on the inner side of the clamping seat (4), and a sealing positioning column (6) is fixedly connected around the bottom of the upper mold (5). A lower mold (11) is provided at the center of the top of the base (1), and a sealing positioning groove (12) is opened around the top of the lower mold (11), and the sealing positioning column (6) is sealed and clamped inside the sealing positioning groove (12); Electric telescopic rods (19) are fixedly mounted on the lower sides of the fixing frame (2) through support seats, and the output ends of the electric telescopic rods (19) passing through the fixing frame (2) are fixedly connected to clamping plates (20), and clamping blocks (21) are fixedly mounted around the inner sides of the clamping plates (20), and first clamping grooves (22) are formed at both ends below the two sides of the upper mold (5), and second clamping grooves (23) are formed at both ends above the two sides of the lower mold (11), and the clamping blocks (21) around the inner sides of the fixing plate (9) are respectively clamped in the first clamping groove (22) and the second clamping groove (23).

2. The mold clamping device for an injection molding machine according to claim 1, characterized in that: Fixed plates (9) are provided on both sides of the clamping base (4), and fixed blocks (10) are fixedly connected to the inner sides of the fixed plates (9). First fixed grooves (7) are provided at both ends of both sides of the clamping base (4), and second fixed grooves (8) are provided at both ends above both sides of the upper mold (5), and the first fixed grooves (7) and the second fixed grooves (8) are symmetrical.

3. The mold clamping device of an injection molding machine according to claim 2, characterized in that: The fixing blocks (10) on the inner side and around the fixing block (10) are respectively clamped in the interior of the first fixing groove (7) and the second fixing groove (8).

4. The mold clamping device for an injection molding machine according to claim 1, characterized in that: A mounting seat (16) is installed at the top center of the base (1), and a lower mold (11) is clamped inside the mounting seat (16).

5. The mold clamping device for an injection molding machine according to claim 4, characterized in that: Micro coolers (17) are installed at both ends of the front and back sides of the mounting seat (16), and cooling air outlets (18) are provided at the upper and lower ends of the front and back side walls inside the mounting seat (16).

6. The mold clamping device for an injection molding machine according to claim 1, characterized in that: An injection molding machine body (14) is installed at the back end of the top of the base (1), and two groups of delivery pipes (15) are installed at the output end of the injection molding machine body (14), and one end of the delivery pipe (15) is sealed and connected to a corresponding feed port (13) opened on the back of the lower mold (11).

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