Efficient demolding mechanism for injection mold

Abstract

The efficient demolding mechanism comprises a base device, a forming device is arranged at the top of the base device, and a transferring device is arranged in front of the forming device; the forming device comprises bottom dies, and limiting rods are arranged at the tops of the bottom dies; according to the efficient demolding mechanism for the injection mold, through the design that the first gear is arranged on the lead screw and matched with transmission of the transmission shaft, after the mold is opened, the transfer plate automatically moves to the position above the bottom mold, meanwhile, the trigger frame pushes the ejector rod to eject a formed part out, the demolding and discharging process is achieved, and after the mold is closed, the transfer plate drives the formed part to move out; the overall automation degree is increased, the demolding effect is improved, and machining is smoother; the design that the motor drives the top mold and the transfer plate to move at the same time is adopted, the top mold is matched to drive the trigger frame to ascend and descend to trigger the ejector rod, the whole demolding and discharging process is controlled through the single motor, device linkage is improved, manufacturing cost is saved conveniently, and energy loss is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of design of demoulding mechanisms for injection molds, in particular to a high-efficiency demoulding mechanism for injection molds. Background Art

[0002] Injection mold is a tool for producing plastic products. It consists of multiple parts. Injection mold can achieve mass production with high production efficiency. It is suitable for large-scale manufacturing. At the same time, it can design complex shapes and structures to meet diverse product needs. It can also adjust the size and shape of the product through mold design to adapt to different market needs. Injection mold products have good consistency, high dimensional accuracy, smooth surface, uniform material, stable physical properties and strong durability. Injection molds play an irreplaceable and important role in modern industrial production. They are widely used in various industries and provide strong support for efficient and high-quality production of products.

[0003] The existing injection mold has poor linkage when demoulding the molded parts. After the mold is opened, it cannot automatically demould to take out the material and drive the molded parts to move out of the mold to release the material. The processing is not smooth enough and the manufacturing cost is high. Utility Model Content

[0004] The utility model aims to provide a high-efficiency demoulding mechanism for an injection mold to solve the problems existing in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-efficiency demoulding mechanism for an injection mold comprises a base device, a molding device is arranged on the top of the base device, and a transfer device is arranged in front of the molding device; the molding device comprises a bottom mold, a limiting rod is arranged on the top of the bottom mold, a top plate is fixedly arranged on the top of the limiting rod, a lead screw is rotatably arranged in front of the top plate, a top mold is arranged on the lead screw, a first gear is arranged on the top of the lead screw, a motor is installed on the top of the first gear, and a trigger frame is fixedly arranged in front of the top mold; the transfer device comprises a transfer plate, a rack is fixedly arranged in front of the transfer plate, a second gear is arranged in front of the rack, a transmission shaft is arranged in the middle of the second gear, a third gear is arranged on the top of the transmission shaft, and a plurality of suction cups are evenly arranged on the bottom of the transfer plate.

[0007] Furthermore: the base device includes a load-bearing frame, a placing platform is fixedly provided on one side of the load-bearing frame, two guide rails are symmetrically fixedly provided on the top of the load-bearing frame, a plurality of limit frames are evenly fixedly provided on the bottom of the load-bearing frame, a top rod is slidably provided at the bottom of the limit frame, a limit block is fixedly provided in the middle of the top rod, and a spring is fixedly provided on the top of the limit block.

[0008] Further: The cross-section of the guide rail is circular, and the transfer plate is slidably connected to the guide rail.

[0009] Further: The top mold is slidably connected to the limit rod.

[0010] Further: The ejector rods are respectively slidably connected to the load-bearing frame and the bottom mold, and the spring is bolted to the load-bearing frame.

[0011] Further: The first gear is connected to the lead screw by a flat key, and the motor is bolted to the top plate.

[0012] Further: The transmission shaft is connected to the load-bearing frame by a bearing.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the design of arranging the first gear on the lead screw and cooperating with the transmission shaft for transmission, after mold opening, the transfer plate automatically moves above the bottom mold. At the same time, the trigger frame pushes the ejector rod to eject the molded part, realizing the demolding and discharging process. After mold closing, the transfer plate drives the molded part out, increasing the overall automation degree, improving the demolding effect, and making the processing more smooth;

[0015] 2. Through the design of setting the motor to drive the top mold and the transfer plate to move simultaneously, and cooperating with the top mold to drive the trigger frame to lift and trigger the ejector rod, realizing the overall demolding and discharging process controlled by a single motor, improving the linkage of the device, facilitating cost savings in manufacturing, and reducing energy consumption. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of an efficient demolding mechanism for an injection mold according to the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the base device of an efficient demolding mechanism for an injection mold according to the present utility model;

[0019] Figure 3 It is an enlarged view of part A of an efficient demolding mechanism for an injection mold according to the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the molding device of an efficient demolding mechanism for an injection mold according to the present utility model;

[0021] Figure 5 It is a structural schematic diagram of a transfer device of an efficient demoulding mechanism for an injection mould described in the present utility model.

[0022] In the attached drawings: 1. Base device; 101. Load-bearing frame; 102. Placing table; 103. Guide rail; 104. Limiting frame; 105. Ejector rod; 106. Limiting block; 107. Spring; 2. Molding device; 201. Bottom mold; 202. Limiting rod; 203. Top plate; 204. Lead screw; 205. Top mold; 206. First gear; 207. Motor; 208. Trigger frame; 3. Transfer device; 301. Transfer plate; 302. Rack; 303. Second gear; 304. Transmission shaft; 305. Third gear; 306. Suction cup. Specific embodiments

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the attached drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 5 , an efficient demolding mechanism for an injection mold, including a base device 1, a molding device 2 is arranged on the top of the base device 1, and a transfer device 3 is arranged in front of the molding device 2.

[0027] In this embodiment: The base device 1 includes a load-bearing frame 101, a placement table 102 is fixedly arranged on one side of the load-bearing frame 101, two guide rails 103 are symmetrically and fixedly arranged on the top of the load-bearing frame 101, a number of limiting frames 104 are uniformly and fixedly arranged at the bottom of the load-bearing frame 101, a push rod 105 is slidably arranged at the bottom of the limiting frame 104, a limiting block 106 is fixedly arranged in the middle of the push rod 105, a spring 107 is fixedly arranged on the top of the limiting block 106, the cross-section of the guide rail 103 is circular, the transfer plate 301 is slidably connected with the guide rail 103, the push rod 105 is respectively slidably connected with the load-bearing frame 101 and the bottom mold 201, the spring 107 is bolted to the load-bearing frame 101, the trigger frame 208 no longer pushes the push rod 105, the load-bearing frame 101 supports the spring 107 to push the limiting block 106 to move downwards through the elastic force, and the limiting block 106 is finally blocked by the limiting frame 104. At this time, the push rod 105 is hidden inside the bottom mold 201 again;

[0028] In this embodiment: The molding device 2 includes a bottom mold 201. Limiting rods 202 are provided on the top of the bottom mold 201. A top plate 203 is fixedly provided at the top of the limiting rods 202. A lead screw 204 is rotatably provided in front of the top plate 203. A top mold 205 is provided on the lead screw 204. A first gear 206 is provided at the top of the lead screw 204. A motor 207 is installed at the top of the first gear 206. A trigger frame 208 is fixedly provided in front of the top mold 205. The top mold 205 is slidably connected to the limiting rods 202. The first gear 206 is connected to the lead screw 204 by a flat key. The motor 207 is bolted to the top plate 203. During use, the bottom mold 201 and the top mold 205 cooperate to complete the injection molding of the mold. When opening the mold, the top plate 203 supports the motor 207 to drive the lead screw 204 to rotate, driving the top mold 205 to rise along the limiting rods 202, separating the top mold 205 from the bottom mold 201. When the lead screw 204 rotates, it synchronously drives the first gear 206 to rotate. During the rising process of the top mold 205, the trigger frame 208 is synchronously driven to move upward. The trigger frame 208 pushes the ejector rod 105 from below, causing it to extend from the bottom mold 201 and pushing the molded part upward to demold. Finally, the motor 207 drives the lead screw 204 to reverse, driving the top mold 205 to reset. During this process, the first gear 206 reverses synchronously, causing the transfer plate 301 to drive the molded part back above the placement table 102. The suction cup 306 stops sucking, and the molded part falls onto the placement table 102, completing the discharging process;

[0029] In this embodiment: The transfer device 3 includes a transfer plate 301. A rack 302 is fixedly provided in front of the transfer plate 301. A second gear 303 is provided in front of the rack 302. A transmission shaft 304 is provided in the middle of the second gear 303. A third gear 305 is provided at the top of the transmission shaft 304. A plurality of suction cups 306 are evenly provided at the bottom of the transfer plate 301. The transmission shaft 304 is connected to the load-bearing frame 101 by a bearing. The first gear 206 meshes with the side of the third gear 305 to rotate. The third gear 305 drives the second gear 303 to rotate through the transmission shaft 304. The second gear 303 meshes with the rack 302 behind it, driving the transfer plate 301 to slide along the guide rail 103. Thus, after the top mold 205 rises to open the mold, the transfer plate 301 automatically moves to the top of the bottom mold 201. The upward-moving molded part just moves to the bottom of the transfer plate 301. Then, the transfer plate 301 supports the suction cups 306 to suck the molded part, completing the material-taking work.

[0030] Working principle: When in use, the bottom mold 201 and the top mold 205 cooperate to complete the injection molding of the mold. When opening the mold, the top plate 203 supports the motor 207 to drive the lead screw 204 to rotate, driving the top mold 205 to rise along the limit rod 202, separating the top mold 205 from the bottom mold 201. When the lead screw 204 rotates, it synchronously drives the first gear 206 to rotate. The first gear 206 meshes with the third gear 305 on the side to rotate. The third gear 305 drives the second gear 303 to rotate through the transmission shaft 304. The second gear 303 meshes with the rack 302 at the back, driving the transfer plate 301 to slide along the guide rail 103. Thus, after the top mold 205 rises to open the mold, the transfer plate 301 automatically moves to the top of the bottom mold 201. During the rising process of the top mold 205, it synchronously drives the trigger frame 208 to move upward. The trigger frame 208 pushes the ejector rod 105 from below, causing it to protrude from the bottom mold 201 and pushing the molded part upward to demold. The upward-moving molded part just moves to the bottom of the transfer plate 301. Then, the transfer plate 301 supports the suction cup 306 to suck the molded part, completing the material taking work. Finally, the motor 207 drives the lead screw 204 to reverse, driving the top mold 205 to reset. During this process, the first gear 206 reverses synchronously, causing the transfer plate 301 to drive the molded part back above the placement table 102. The suction cup 306 stops adsorbing, and the molded part falls onto the placement table 102, completing the discharging process. At the same time, the trigger frame 208 no longer pushes the ejector rod 105, and the load-bearing frame 101 supports the spring 107 to push the limit block 106 downward through elastic force. The limit block 106 is finally blocked by the limit frame 104. At this time, the ejector rod 105 is hidden inside the bottom mold 201 again.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient demoulding mechanism for an injection mould, comprising a base device (1), characterized in that: At the top of the base device (1), a forming device (2) is provided, and a transfer device (3) is provided in front of the forming device (2); The forming device (2) includes a bottom die (201). At the top of the bottom die (201), limiting rods (202) are provided. At the top of the limiting rods (202), a top plate (203) is fixedly provided. In front of the top plate (203), a lead screw (204) is rotatably provided. On the lead screw (204), a top die (205) is provided. At the top of the lead screw (204), a first gear (206) is provided. At the top of the first gear (206), a motor (207) is installed. In front of the top die (205), a trigger frame (208) is fixedly provided; The transfer device (3) includes a transfer plate (301). In front of the transfer plate (301), a rack (302) is fixedly provided. In front of the rack (302), a second gear (303) is provided. In the middle of the second gear (303), a transmission shaft (304) is provided. At the top of the transmission shaft (304), a third gear (305) is provided. At the bottom of the transfer plate (301), a number of suction cups (306) are evenly provided.

2. The high-efficiency demolding mechanism for an injection mold according to claim 1, characterized in that: The base device (1) includes a load-bearing frame (101). On one side of the load-bearing frame (101), a placement table (102) is fixedly provided. At the top of the load-bearing frame (101), two guide rails (103) are symmetrically and fixedly provided. At the bottom of the load-bearing frame (101), a number of limiting frames (104) are evenly and fixedly provided. At the bottom of the limiting frames (104), a top rod (105) is slidably provided. In the middle of the top rod (105), a limiting block (106) is fixedly provided. At the top of the limiting block (106), a spring (107) is fixedly provided.

3. The high-efficiency demolding mechanism for an injection mold according to claim 2, characterized in that: The cross-section of the guide rail (103) is circular, and the transfer plate (301) is slidably connected to the guide rail (103).

4. The high-efficiency demolding mechanism for an injection mold according to claim 1, characterized in that: The top die (205) is slidably connected to the limiting rod (202).

5. The high-efficiency demolding mechanism for an injection mold according to claim 2, characterized in that: The top rod (105) is slidably connected to the load-bearing frame (101) and the bottom die (201) respectively, and the spring (107) is bolted to the load-bearing frame (101).

6. The high-efficiency demoulding mechanism for an injection mould according to claim 1, wherein: The first gear (206) is connected to the lead screw (204) by a flat key, and the motor (207) is bolted to the top plate (203).

7. The high-efficiency demoulding mechanism for an injection mould according to claim 2, characterized in that: The transmission shaft (304) is connected to the load-bearing frame (101) by a bearing.

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