Injection mold for easy mold closing in plastic processing

Abstract

The present invention discloses an injection mold that is easy to close the mold for plastic processing. The present invention relates to the technical field of injection molding equipment, including a frame, a mold mechanism, and the mold mechanism includes a base and a hydraulic cylinder. The top of the base is fixedly connected to a fixed mold, the output end of the hydraulic cylinder is fixedly installed with a movable mold, a clamping assembly is respectively installed on the top of the fixed mold and the top of the movable mold, a support guide column is fixedly installed in the middle of the outer side of the base, a preheating assembly is installed at the bottom of the movable mold and the bottom of the fixed mold, a gate assembly is installed in the middle of the outer side of the fixed mold, the preheating assembly is used to heat the movable mold and the fixed mold, a fan and an air supply pipe are respectively installed at both ends of the air channel, the bend of the outer side of the air supply pipe is fixedly connected to the side of the outer side of the movable mold, the air inlet end of the fan is connected to a connecting pipe, and the top of the connecting pipe is connected to a sleeve. The injection mold that is easy to close the mold for plastic processing achieves the effect of easy closing the mold, reduces the influence of external force and vibration, is not prone to shaking, and makes opening and closing the mold convenient.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold which is convenient for mold closing in plastic processing. Background Art

[0002] The development trend of injection molds is mainly towards high-precision high-tech. The process of injection molding can be roughly divided into several processes: mold closing, injection, pressure holding, cooling, mold opening, product removal, etc. Injection molds are a tool for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by the injection molding machine, and after cooling and solidification, the molded product is obtained. Plastic molds are divided into two types according to the molding characteristics: thermosetting plastic molds and plastic plastic molds. With the continuous development of science and technology and the rapid progress of society, there are more and more applications for plastic products, and then there are more and more uses for injection molds.

[0003] At present, the existing injection molds are easily affected by the operation of the equipment and shake when opening and closing the mold, and then the mold opening and closing is not utilized, which makes the mold opening and closing inconvenient, affects the overall operation of the mechanism, and causes the mold clamping between the movable mold and the fixed mold to be not stable enough, resulting in flash on the plastic product. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection mold for easy mold closing in plastic processing, comprising:

[0005] A rack having a frame body for supporting the equipment structure;

[0006] A mold mechanism, which is used for molding plastic products, is installed on the top of the frame, and a clamping assembly is installed on the top of the mold mechanism;

[0007] The mold mechanism includes a base and a hydraulic cylinder. The bottom of the base is fixedly installed in the middle of the top of the frame by screws. The hydraulic cylinder is fixedly installed on the side of the outer side of the frame through a bracket. The top of the base is fixedly connected to the fixed mold. The output end of the hydraulic cylinder is fixedly installed with a movable mold. The fixed mold and the movable mold are installed at the same height, which is convenient for the movable mold to be moved and the fixed mold to be molded. The clamping components are respectively installed on the top of the fixed mold and the top of the movable mold. The clamping components are used to limit the fixed mold and the movable mold. A support guide column is fixedly installed in the middle of the outer side of the base. The base, hydraulic cylinder and support guide column are all installed on the central axis of the frame. The bottom of the movable mold is slidably installed on the outer surface of the support guide column through a collar. The bottom of the movable mold and the bottom of the fixed mold are installed with a preheating assembly. The middle of the outer side of the fixed mold is installed with a gate assembly. By using the extension and contraction of the output end of the hydraulic cylinder and the support of the support guide column, the movable mold can be linearly braked. Under the support and guiding action of two symmetrical support guide columns, the movable mold is not easy to shake when moving, reducing the influence of external force and vibration, thereby facilitating the opening and closing of the movable mold and the fixed mold;

[0008] Among them, the preheating component is used to heat the movable mold and the fixed mold, and the preheating component includes an air duct, which is fixedly installed at the bottom of the fixed mold, and fans and air pipes are respectively installed at both ends of the air duct, and the air pipes are slidably adapted to the air duct, and the outer side of the air pipe is coiled and installed at the side of the outer side of the movable mold, and the air inlet end of the fan is connected with a connecting pipe, and the top of the connecting pipe is connected with a sleeve, and the suction force of the fan is used to make the outside air enter the sleeve, and the heat transfer principle is used to make the gas heated to form a hot air flow, and through the transportation of the air duct, the hot air flow enters the air pipe, and is discharged from the air outlet end of the air pipe by the air flow, so that the gas circulates smoothly, and at this time the movable mold will absorb the heat of the air pipe, so that the temperature of the movable mold itself increases, thereby achieving the preheating effect.

[0009] Preferably, the support guide pillars are installed directly below the movable mold to facilitate supporting and guiding the movable mold using the support guide pillars, and the bases are evenly distributed at the bottom of the fixed mold to facilitate supporting the fixed mold and making it firm.

[0010] Preferably, an annular groove is provided on the inner wall of the sleeve, and a linear groove is provided on the inner wall of the sleeve. The linear groove and the annular groove are cross-arranged to facilitate the outside air to enter the interior of the sleeve. A sealing sleeve is fixedly installed at the end position of the outer side of the air pipe. The sealing sleeve is made of rubber material and has a sealing effect, thereby promoting the hot air in the airway to enter the air pipe.

[0011] When the movable mold is moving, the right end of the air pipe can slide inside the airway, so that the air pipe can cooperate with the airway to play a guiding role, making the overall movement of the movable mold more stable, and using the same structure to achieve multiple functions.

[0012] Preferably, the gate assembly includes a gate sleeve and a conical guide hopper, the gate sleeve is fixedly installed to the middle of the outer side of the fixed mold by screws, a fan-shaped groove is opened on the conical surface of the inner cavity of the gate sleeve, the conical guide hopper is embedded in the inner cavity of the gate sleeve, the conical guide hopper is fixedly connected to the gate sleeve by screws, a heat conductive sheet is fixedly installed on the bottom of the conical guide hopper, a clamping plate is fixedly installed on the bottom end of the heat conductive sheet, the clamping plate is clamped in the middle of the outer side of the airway, a fan-shaped sheet is fixedly installed on the conical surface of the outer side of the conical guide hopper, the fan-shaped sheet is embedded in the inside of the fan-shaped groove, and is clamped on the outer side of the airway by the clamping plate. Under the support and heat conduction of the heat conductive sheet, heat can be transferred to the gate sleeve through the conical guide hopper, thereby heating the gate sleeve and reducing the temperature difference between the gate sleeve and the discharge end of the injection molding machine.

[0013] Preferably, the position of the fan-shaped piece corresponds to the position of the fan-shaped slot, which facilitates the insertion of the fan-shaped piece into the fan-shaped slot. The conical guide hopper is installed in the middle of the gate sleeve, which facilitates the use of the conical guide hopper to evenly transfer heat to the gate sleeve.

[0014] At the same time, the fan-shaped piece is embedded in the fan-shaped groove, which not only makes the connection between the conical guide hopper and the gate sleeve firm, but also increases the contact area between the two, so that the gate sleeve is heated evenly.

[0015] Preferably, the clamping assembly includes a rectangular notch and a rectangular connecting block, the rectangular notch is provided at the top of the movable mold, the rectangular connecting block is fixedly mounted at the side of the outer side of the fixed mold, the rectangular connecting block is installed at a position close to the top of the fixed mold, circular clamping grooves are provided on both sides corresponding to the inner cavity of the rectangular notch, an elastic strip is fixedly mounted at the side of the outer side of the rectangular connecting block, a semicircular clamping block is fixedly mounted in the middle of the outer side of the elastic strip, a supporting module is installed inside the rectangular connecting block, and the positions of the rectangular notch and the rectangular connecting block correspond to each other. At this time, the left end of the rectangular connecting block is inserted into the rectangular notch, thereby limiting the movable mold, and as the movable mold continues to move to the right, the semicircular clamping block is embedded inside under the elastic force of the elastic strip, thereby completing self-locking, making it less likely for the movable mold and the fixed mold to be offset, thereby facilitating injection molding and making it less likely for the injection molded product to have flash.

[0016] Preferably, the position of the rectangular notch corresponds to the position of the rectangular connecting block, which facilitates the insertion of the rectangular connecting block into the interior of the rectangular notch, thereby promoting the adaptation between the rectangular connecting block and the rectangular notch. The circular slot and the semicircular slot are installed at the same height, which facilitates the semicircular slot to be connected to the interior of the circular slot.

[0017] Preferably, the elastic strip is arc-shaped, and after being pressed, it is easy to elastically deform. Two elastic strips are provided, and the two elastic strips are symmetrically arranged along the middle of the rectangular connecting block.

[0018] Preferably, the supporting module includes a circular through hole, which is opened in the middle of the rectangular connecting block. A spring is installed inside the circular through hole. Both ends of the spring are fixedly connected with cylindrical support members. The cylindrical support member is fixedly connected to the middle of the outer side of the elastic strip. The cylindrical support member and the circular through hole are slidably fitted. When the semicircular block is embedded in the circular slot, it can be moved by using the cylindrical support member, and under the elastic support of the spring, it is subjected to a top force, so that the semicircular block and the circular slot are firmly connected.

[0019] Preferably, the spring is installed in the middle of the circular through hole, and the spring and the cylindrical support are on the same straight line, so that the spring can be used to apply elastic thrust to the cylindrical support.

[0020] The present invention provides an injection mold that is easy to mold for plastic processing and has the following beneficial effects:

[0021] 1. The plastic processing is convenient for the injection mold to close the mold. By utilizing the extension and contraction of the output end of the hydraulic cylinder and under the support of the support guide pillar, and in combination with the bottom of the movable mold slidingly fitting with the support guide pillar through the sleeve, the movable mold can be linearly braked. Under the support and guiding action of two symmetrical support guide pillars, the movable mold is not easy to shake when moving, reducing the influence of external force and vibration, thereby facilitating the opening and closing of the movable mold and the fixed mold.

[0022] 2. The plastic processing is convenient for the injection mold to close the mold. The suction force of the fan is used to allow the outside air to enter the sleeve, and the heat transfer principle is used to heat the gas to form a hot air flow, which is transported through the airway to allow the hot air flow to enter the air pipe and be discharged from the air outlet of the air pipe, thereby allowing the gas to flow smoothly. At this time, the movable mold will absorb the heat of the air pipe, causing the temperature of the movable mold itself to rise, thereby achieving the preheating effect.

[0023] Third, the plastic processing is convenient for the injection mold to close the mold. The gas pipe is curved, and the curved bend on the gas pipe is fully in contact with the movable mold, which increases the contact area and thus makes the heat transfer efficiency high.

[0024] Fourth, the plastic processing is convenient for the injection mold to close the mold. The air pipe and the airway are adapted to each other by sliding. When the movable mold is moving, the right end of the air pipe can slide inside the airway, so that the air pipe and the airway can be matched to play a guiding role, making the overall movement of the movable mold more stable, and using the same structure to achieve multiple functions.

[0025] 5. The plastic processing is convenient for the injection mold to close the mold. The left end of the rectangular connecting block is inserted into the rectangular notch to limit the movable mold. As the movable mold continues to move to the right, the semicircular block is embedded inside under the elastic force of the elastic strip, thereby completing self-locking, making it difficult for the movable mold and the fixed mold to offset, which is helpful for injection molding and makes it difficult for the injection molded product to have flash.

[0026] Sixth, the plastic processing is convenient for the injection mold to close the mold. When the semicircular block is embedded in the circular slot, it can be moved by using a cylindrical support, and under the elastic support of the spring, it is subjected to a top force, so that the semicircular block and the circular slot are firmly connected.

[0027] 7. The plastic processing is convenient for the injection mold to close the mold. The clamping plate is clamped on the outside of the airway, and under the support and heat conduction of the heat conductive sheet, the heat can be transferred to the gate sleeve through the conical guide hopper, so that the gate sleeve is heated, and the temperature difference between the gate sleeve and the discharge end of the injection molding machine is reduced. At the same time, the fan-shaped sheet is embedded in the fan-shaped groove, which not only makes the connection between the conical guide hopper and the gate sleeve firm, but also increases the contact area between the two, so that the gate sleeve is heated evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the injection mold for easy mold closing for plastic processing of the present invention;

[0029] Figure 2 This is a schematic diagram of the side structure of the injection mold for easy mold closing in plastic processing of the present invention;

[0030] Figure 3 It is a schematic diagram of the overall structure of the mold mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the connection between the preheating assembly and the fixed mold and the movable mold as viewed from above in the present invention;

[0032] Figure 5 This is a schematic diagram of the internal structure of the airway and gas transmission pipe cross section of the present invention;

[0033] Figure 6 For the present invention Figure 5 A partial enlarged view of the middle part;

[0034] Figure 7It is a schematic diagram of the connection structure between the gate assembly and the fixed mold and the air channel of the present invention;

[0035] Figure 8 It is a schematic diagram of the split structure between the conical guide hopper and the sprue sleeve of the present invention;

[0036] Fig. 9 It is a schematic diagram of the connection structure between the clamping assembly and the fixed mold and the movable mold of the present invention;

[0037] Fig.10 This is a schematic diagram of the internal structure of the rectangular connecting block cross section of the present invention;

[0038] Fig.11 For the present invention Fig.10 A partial enlarged view of point B in the middle.

[0039] In the figure: 1. frame; 2. mold mechanism; 3. snap-on assembly; 21. base; 22. hydraulic cylinder; 23. fixed mold; 24. movable mold; 25. support guide column; 26. preheating assembly; 27. gate assembly; 261. airway; 262. fan; 263. air pipe; 264. connecting pipe; 265. sleeve; 266. annular groove; 267. linear groove; 268. sealing sleeve; 271. gate sleeve; 272. fan-shaped slot; 273. conical guide bucket; 274. heat conducting plate; 275. snap-on plate; 276. fan-shaped sheet; 31. rectangular notch; 32. rectangular connecting block; 33. circular slot; 34. elastic strip; 35. semicircular block; 36. support module; 361. circular through hole; 362. cylindrical support; 363. spring. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0041] The first embodiment, as Figure 1-Figure 6 As shown, the present invention provides a technical solution: an injection mold for easy mold closing in plastic processing, comprising:

[0042] A rack 1, wherein the rack 1 has a frame body for supporting the equipment structure;

[0043] The mold mechanism 2 is used for plastic product molding processing. The mold mechanism 2 is installed on the top of the frame 1, wherein the mold mechanism 2 includes a base 21 and a hydraulic cylinder 22. The bottom of the base 21 is fixedly installed in the middle of the top of the frame 1 by screws, and the hydraulic cylinder 22 is fixedly installed on the side of the outer side of the frame 1 through a bracket. The top of the base 21 is fixedly connected with a fixed mold 23, and the output end of the hydraulic cylinder 22 is fixedly installed with a movable mold 24. The fixed mold 23 and the movable mold 24 are installed at the same height, so that the movable mold 24 and the fixed mold 23 can be molded together through the movement of the movable mold 24. The clamping assembly 3 is respectively installed on the top of the fixed mold 23 and the top of the movable mold 24. The clamping assembly 3 is used to limit the fixed mold 23 and the movable mold 24. A support guide column 25 is fixedly installed in the middle of the outer side of the base 21. 21. The hydraulic cylinder 22 and the support guide column 25 are both installed on the central axis of the frame 1. The bottom of the movable mold 24 is slidably installed on the outer surface of the support guide column 25 through a sleeve ring. The bottom of the movable mold 24 and the bottom of the fixed mold 23 are installed with a preheating component 26, and the middle of the outer side of the fixed mold 23 is installed with a gate component 27. The staff turns on the hydraulic cylinder 22 to work, and uses the extension and contraction of the output end of the hydraulic cylinder 22, and under the support of the support guide column 25, and combined with the bottom of the movable mold 24 slidingly adapted with the support guide column 25 through the sleeve ring, the movable mold 24 can be linearly braked, and under the support and guiding action of the two symmetrical support guide columns 25, the movable mold 24 is not easy to shake when moving, reducing the influence of external force and vibration, thereby facilitating the opening and closing of the movable mold 24 and the fixed mold 23;

[0044] The support guide pillars 25 are installed directly below the movable mold 24 to facilitate supporting and guiding the movable mold 24 using the support guide pillars 25. The base 21 is evenly distributed at the bottom of the fixed mold 23 to facilitate supporting the fixed mold 23 and making the fixed mold 23 firm.

[0045] The preheating assembly 26 is used to heat the movable mold 24 and the fixed mold 23. The preheating assembly 26 includes an air channel 261, which is fixedly installed at the bottom of the fixed mold 23. A fan 262 and an air pipe 263 are installed at both ends of the air channel 261, respectively. The air pipe 263 and the air channel 261 are slidably adapted to each other. The outer side of the air pipe 263 is coiled and installed at the side of the outer side of the movable mold 24. The air inlet end of the fan 262 is connected with a connecting pipe 264, and the top of the connecting pipe 264 is connected with a sleeve 265. The sleeve 265 is installed on the injection molding machine on the top right side of the frame 1. The injection molding machine generates its own heat, and the fan 262 is turned on by the staff to work. The suction force of the fan 262 is used to allow the outside air to enter the sleeve 265, and the heat transfer principle is used to make the The gas is heated to form a hot air flow, and is transported through the air channel 261, so that the hot air flow enters the air pipe 263, and is discharged from the air outlet end of the air pipe 263 by the air flow, so that the gas flows smoothly. At this time, the movable mold 24 will absorb the heat of the air pipe 263, so that the temperature of the movable mold 24 itself increases, thereby achieving the effect of preheating. An annular groove 266 is provided on the inner wall of the sleeve 265, and a linear groove 267 is provided on the inner wall of the sleeve 265. The linear groove 267 and the annular groove 266 are arranged crosswise, so that the outside air can enter the interior of the sleeve 265. A sealing sleeve 268 is fixedly installed at the end position of the outer side of the air pipe 263. The sealing sleeve 268 is made of rubber material and has a sealing effect, which promotes the hot air in the air channel 261 to enter the air pipe 263.

[0046] By slidingly matching the air pipe 263 and the air channel 261, when the movable mold 24 is moving, the right end of the air pipe 263 can slide inside the air channel 261, and the air pipe 263 and the air channel 261 can be used to cooperate with each other to play a guiding role, so that the overall movement of the movable mold 24 is more stable.

[0047] The second embodiment, as Figure 1-Figure 8 As shown, based on the first embodiment:

[0048] The gate assembly 27 includes a gate sleeve 271 and a conical flow guide hopper 273. The gate sleeve 271 is fixedly installed at the middle of the outer side of the fixed mold 23 by screws. A fan-shaped groove 272 is provided at the conical surface of the inner cavity of the gate sleeve 271. The conical flow guide hopper 273 is embedded in the inner cavity of the gate sleeve 271. The conical flow guide hopper 273 is fixedly connected to the gate sleeve 271 by screws. A heat conducting sheet 274 is fixedly installed at the bottom of the conical flow guide hopper 273. A clamping plate 275 is fixedly installed at the bottom end of the heat conducting sheet 274. The clamping plate 275 is clamped at the middle of the outer side of the air channel 261, and a fan-shaped piece 276 is fixedly installed on the conical surface of the outer side of the conical guide hopper 273. The fan-shaped piece 276 is embedded in the inner side of the fan-shaped clamping groove 272. The clamping plate 275 is clamped at the outer side of the air channel 261, and under the support and heat conduction of the heat conductive sheet 274, heat can be transferred to the sprue bushing 271 through the conical guide hopper 273, so that the sprue bushing 271 is heated, and the temperature difference between the sprue bushing 271 and the discharge end of the injection molding machine is reduced;

[0049] At the same time, the fan-shaped piece 276 is embedded in the fan-shaped groove 272, which not only ensures a firm connection between the conical guide hopper 273 and the gate sleeve 271, but also increases the contact area between the two, so that the gate sleeve 271 is heated evenly.

[0050] The position of the fan-shaped piece 276 corresponds to the position of the fan-shaped slot 272, which facilitates the insertion of the fan-shaped piece 276 into the fan-shaped slot 272. The conical guide hopper 273 is installed in the middle of the gate sleeve 271, which facilitates the use of the conical guide hopper 273 to evenly transfer heat to the gate sleeve 271.

[0051] The third embodiment, as Figure 1-Figure 6 and Figure 9-11 As shown, based on the first embodiment:

[0052] The clamping assembly 3 includes a rectangular notch 31 and a rectangular connecting block 32. The rectangular notch 31 is opened at the top of the movable mold 24. The rectangular connecting block 32 is fixedly installed at the side of the outer side of the fixed mold 23. The rectangular connecting block 32 is installed near the top of the fixed mold 23. Circular card grooves 33 are opened on both sides of the inner cavity of the rectangular notch 31. An elastic strip 34 is fixedly installed at the side of the outer side of the rectangular connecting block 32. A semicircular card block 35 is fixedly installed in the middle of the outer side of the elastic strip 34. The interior of the rectangular connecting block 32 is installed with The supporting module 36, when the movable mold 24 moves to the left side, the rectangular notch 31 and the rectangular connecting block 32 are in correspondence with each other. At this time, the left end of the rectangular connecting block 32 is inserted into the rectangular notch 31, thereby limiting the movable mold 24. As the movable mold 24 continues to move to the right side, the semicircular block 35 is embedded inside under the elastic force of the elastic strip 34, thereby completing self-locking, making it difficult for the movable mold 24 and the fixed mold 23 to be offset, thereby facilitating injection molding and making it difficult for the injection molded product to have flash.

[0053] The position of the rectangular notch 31 corresponds to the position of the rectangular connecting block 32, which facilitates the rectangular connecting block 32 to be inserted into the interior of the rectangular notch 31, thereby promoting the adaptation between the rectangular connecting block 32 and the rectangular notch 31. The circular slot 33 and the semicircular block 35 are installed at the same height, which facilitates the semicircular block 35 to be snapped into the interior of the circular slot 33.

[0054] The elastic strip 34 is arc-shaped, and after being pressed, it is easy to be elastically deformed. Two elastic strips 34 are provided, and the two elastic strips 34 are symmetrically arranged along the middle of the rectangular connecting block 32.

[0055] The supporting module 36 includes a circular through hole 361, which is opened in the middle of the rectangular connecting block 32. A spring 363 is installed inside the circular through hole 361. Both ends of the spring 363 are fixedly connected with cylindrical support members 362. The cylindrical support member 362 is fixedly connected to the middle of the outer side of the elastic strip 34. The cylindrical support member 362 and the circular through hole 361 are slidably adapted. When the semicircular block 35 is embedded in the circular slot 33, it can be moved by using the cylindrical support member 362, and under the elastic support of the spring 363, it is subjected to a top force, so that the semicircular block 35 and the circular slot 33 are firmly connected.

[0056] The spring 363 is installed in the middle of the circular through hole 361 , and the spring 363 and the cylindrical support member 362 are on the same straight line, so that the spring 363 can be used to apply elastic thrust to the cylindrical support member 362 .

[0057] When in use, first install the sleeve 265 on the injection molding machine on the top right side of the frame 1, and use the injection molding machine to collect its own heat, and the staff will start the fan 262 to work, and use the suction force of the fan 262 to make the outside air enter the sleeve 265, and use the heat transfer principle to make the gas heated to form a hot air flow, and through the airway 261, the hot air flow enters the air pipe 263, and uses the air flow to be discharged from the air outlet end of the air pipe 263, so that the gas flows smoothly. At this time, the movable mold 24 will absorb the heat of the air pipe 263, so that the movable mold 2 4, the temperature of the nozzle 270 is increased to achieve the preheating effect, and the clamping plate 275 is clamped on the outer side of the air channel 261, and under the support and heat conduction of the heat conductive sheet 274, the heat can be transferred to the gate sleeve 271 through the conical guide hopper 273, so that the gate sleeve 271 is heated, and the temperature difference between the gate sleeve 271 and the discharge end of the injection molding machine is reduced. At the same time, the fan-shaped sheet 276 is embedded in the fan-shaped clamping groove 272, so that the conical guide hopper 273 and the gate sleeve 271 are firmly connected, and the contact area between the two can be increased, so that the gate sleeve 271 is heated evenly;

[0058] At this time, the staff starts the hydraulic cylinder 22 to work, and by using the extension of the output end of the hydraulic cylinder 22 and under the support of the support guide pillar 25, and in combination with the bottom of the movable mold 24 slidingly fitting with the support guide pillar 25 through the sleeve ring, the movable mold 24 can be linearly braked, and under the support and guidance of the two symmetrical support guide pillars 25, the movable mold 24 is not easy to shake when moving, reducing the influence of external force and vibration;

[0059] Furthermore, by slidingly matching the air pipe 263 and the air channel 261, when the movable mold 24 is moving, the right end of the air pipe 263 can slide inside the air channel 261, so that the air pipe 263 and the air channel 261 can cooperate to play a guiding role, so that the overall movement of the movable mold 24 is more stable;

[0060] Moreover, when the movable mold 24 moves to the left, the rectangular notch 31 and the rectangular connecting block 32 correspond to each other, and the left end of the rectangular connecting block 32 is inserted into the rectangular notch 31, thereby limiting the movable mold 24. As the movable mold 24 continues to move to the right, the semicircular block 35 is embedded therein under the elastic force of the elastic strip 34, thereby completing self-locking, so that the movable mold 24 and the fixed mold 23 are not easily offset.

[0061] When the semicircular block 35 is inserted into the circular slot 33, it can be moved by the cylindrical support 362, and under the elastic support of the spring 363, it is subjected to a jacking force, so that the semicircular block 35 and the circular slot 33 are firmly connected;

[0062] At this time, the injection molding machine installed on the top right side of the frame 1 can be used to inject the raw material into the gate sleeve 271, and then the injection molding process can be carried out under the cooperation between the movable mold 24 and the fixed mold 23. When the injection molding process is completed, the output end of the hydraulic cylinder 22 can be contracted again to make the movable mold 24 move to the left to open the mold, and the plastic product can be removed.

[0063] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An injection mold for easy mold closing in plastic processing, characterized in that: include: A frame (1), the frame (1) having a frame body for supporting a device structure; A mold mechanism (2), the mold mechanism (2) is used for molding plastic products, the mold mechanism (2) is installed on the top of the frame (1), and a clamping assembly (3) is installed on the top of the mold mechanism (2); The mold mechanism (2) comprises a base (21) and a hydraulic cylinder (22); the bottom of the base (21) is fixedly mounted on the middle of the top of the frame (1) by means of screws; the hydraulic cylinder (22) is fixedly mounted on the side of the outer side of the frame (1) by means of a bracket; the top of the base (21) is fixedly connected to a fixed mold (23); the output end of the hydraulic cylinder (22) is fixedly mounted to a movable mold (24); the fixed mold (23) and the movable mold (24) are mounted at the same height; the clamping assembly (3) is respectively mounted on the top of the fixed mold (23) and the movable mold (24). The clamping assembly (3) is used to limit the fixed mold (23) and the movable mold (24); a support guide column (25) is fixedly installed in the middle of the outer side of the base (21); the base (21), the hydraulic cylinder (22) and the support guide column (25) are all installed on the central axis of the frame (1); the bottom of the movable mold (24) is slidably installed on the outer surface of the support guide column (25) through a sleeve ring; the bottom of the movable mold (24) and the bottom of the fixed mold (23) are installed with a preheating assembly (26); and the middle of the outer side of the fixed mold (23) is installed with a gate assembly (27); The preheating assembly (26) is used to heat the movable mold (24) and the fixed mold (23). The preheating assembly (26) comprises an air channel (261). The air channel (261) is fixedly mounted on the bottom of the fixed mold (23). A fan (262) and an air delivery pipe (263) are respectively mounted on both ends of the air channel (261). The air delivery pipe (263) is slidably fitted with the air channel (261). The outer side of the air delivery pipe (263) is coiled and mounted on the side of the outer side of the movable mold (24). The air inlet end of the fan (262) is connected to a connecting pipe (264), and the top end of the connecting pipe (264) is connected to a sleeve (265).

2. The injection mold for easy mold closing of plastic processing according to claim 1, characterized in that: The support guide column (25) is installed directly below the movable mold (24), and the base (21) is evenly distributed at the bottom of the fixed mold (23).

3. The injection mold for easy mold closing of plastic processing according to claim 1, characterized in that: The inner wall of the sleeve (265) is provided with an annular groove (266), and the inner wall of the sleeve (265) is provided with a linear groove (267), and the linear groove (267) and the annular groove (266) are arranged crosswise. A sealing sleeve (268) is fixedly installed at the end position of the outer side of the air delivery pipe (263), and the material of the sealing sleeve (268) is rubber.

4. The injection mold for easy mold closing of plastic processing according to claim 1, characterized in that: The gate assembly (27) comprises a gate sleeve (271) and a conical flow guide hopper (273); the gate sleeve (271) is fixedly mounted to the middle of the outer side of the fixed mold (23) by means of screws; a fan-shaped groove (272) is provided on the conical surface of the inner cavity of the gate sleeve (271); the conical flow guide hopper (273) is embedded in the inner cavity of the gate sleeve (271); the conical flow guide hopper (273) is fixedly mounted to the gate sleeve (271) by means of screws; The conical guide hopper (273) is fixedly connected to the airway (261); a heat conducting sheet (274) is fixedly mounted on the bottom of the conical guide hopper (273); a clamping plate (275) is fixedly mounted on the bottom end of the heat conducting sheet (274); the clamping plate (275) is clamped in the middle of the outer side of the airway (261); a fan-shaped sheet (276) is fixedly mounted on the conical surface of the outer side of the conical guide hopper (273); and the fan-shaped sheet (276) is embedded in the interior of the fan-shaped clamping groove (272).

5. The injection mold for easy mold closing in plastic processing according to claim 4, characterized in that: The position of the sector piece (276) corresponds to the position of the sector groove (272), and the conical guide hopper (273) is installed in the middle of the gate sleeve (271).

6. The injection mold for easy mold closing in plastic processing according to claim 1, characterized in that: The clamping assembly (3) comprises a rectangular notch (31) and a rectangular connecting block (32); the rectangular notch (31) is provided at the top of the movable mold (24); the rectangular connecting block (32) is fixedly mounted on the side of the outer side of the fixed mold (23); the rectangular connecting block (32) is mounted at a position close to the top of the fixed mold (23); circular clamping grooves (33) are provided on both sides corresponding to the inner cavity of the rectangular notch (31); an elastic strip (34) is fixedly mounted on the side of the outer side of the rectangular connecting block (32); a semicircular clamping block (35) is fixedly mounted in the middle of the outer side of the elastic strip (34); and a supporting module (36) is mounted inside the rectangular connecting block (32).

7. The injection mold for easy mold closing in plastic processing according to claim 6, characterized in that: The position of the rectangular notch (31) corresponds to the position of the rectangular connecting block (32), and the circular clamping groove (33) and the semicircular clamping block (35) are installed at the same height.

8. The injection mold for easy mold closing in plastic processing according to claim 6, characterized in that: The elastic strip (34) is arc-shaped, two elastic strips (34) are provided, and the two elastic strips (34) are symmetrically arranged along the middle of the rectangular connecting block (32).

9. The injection mold for easy mold closing of plastic processing according to claim 6, characterized in that: The support module (36) comprises a circular through hole (361), wherein the circular through hole (361) is provided in the middle of the rectangular connecting block (32), a spring (363) is installed in the circular through hole (361), both ends of the spring (363) are fixedly connected with a cylindrical support member (362), the cylindrical support member (362) is fixedly connected to the middle of the outer side of the elastic strip (34), and the cylindrical support member (362) and the circular through hole (361) are slidably matched.

10. The injection mold for easy mold closing in plastic processing according to claim 9, characterized in that: The spring (363) is installed in the middle of the circular through hole (361), and the spring (363) and the cylindrical support member (362) are on the same straight line.

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