Demolding device for injection molding machine

Abstract

The present invention relates to the field of demoulding technology for injection molding machines, and discloses a demoulding device for injection molding machines, including a base, the top four corners of the base are fixedly connected with pillars, the top of the pillars are fixedly connected with a top plate; a top mold assembly, the top of the top plate penetrates and is fixedly connected with the top mold assembly, the top mold assembly includes a hydraulic rod and a movable plate, the bottom of the hydraulic rod penetrates the top plate and is fixedly connected to the movable plate, the left and right sides of the inside of the movable plate are fixedly connected with the top mold body, so that the bottom can be molded and injection molded. The present invention uses a hydraulic rod to move the movable plate and the top mold body downward together to position them, and the cooperation of the limit groove and the limit rod allows the movable plate to be completely molded with the operating box, and the inside is injected through a feed pipe, so that the material can be quickly loaded, molded and started for injection molding.

Description

Technical Field

[0001] The invention relates to the technical field of demoulding of injection molding machines, in particular to a demoulding device of an injection molding machine. Background Art

[0002] As people's living standards improve, people need to use shower heads when taking a shower, and shower heads are generally made by injection molding using rubber injection molding machines.

[0003] At present, when the shower head shell is injection molded on the market, because the shower head product has a special shape and a large arc elbow core, in actual production, manual loading and demolding are required from mold structure processing to production, which makes demolding cumbersome and complicated. In addition, because the tail of the shower head is threaded, it is easy to get stuck and damage the product and the machine during the overall demolding. At the same time, because the temperature of the newly produced product is overheated, people may get burned when they touch the product during demolding.

[0004] In view of the above problems, a demoulding device for an injection molding machine is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a demolding device for an injection molding machine, which solves the problem in the background technology that, when a shower head shell for shower is currently being injection molded on the market, because the shower head product has a special shape and has a large arc elbow core pulling inside, therefore, in actual production, from mold structure processing to production, manual loading and demolding are required, making demolding cumbersome and complicated. In addition, because the tail of the shower head is threaded, it is easy to get stuck in the mold and damage the product and the machine when the whole is demolded. At the same time, because the temperature of the newly produced product is overheated, people who touch the product when demolding may cause burns.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a demoulding device for an injection molding machine, comprising: a base, the top four corners of the base are fixedly connected with pillars, the top of the pillars are fixedly connected with a top plate; a top mold assembly, the top of the top plate penetrates and is fixedly connected with the top mold assembly, the top mold assembly includes a hydraulic rod and a movable plate, the bottom of the hydraulic rod penetrates the top plate and is fixedly connected to the movable plate, the left and right sides of the inside of the movable plate are fixedly connected with the top mold body, so that the bottom can be molded and injection molded; a bottom mold assembly, the bottom of the movable plate is provided with a bottom mold assembly, so that the movable plate can be matched and sealed for injection molding; unloading The front end top of the base is fixedly connected with a blanking component, and the blanking component includes an electric push rod and a toothed plate. The rear bottom of the electric push rod is fixedly connected to the base, and the output end of the electric push rod is fixedly connected with the toothed plate. The top of the toothed plate is meshed with a main gear. The middle of the main gear passes through and is fixedly connected with a first linkage rod. The left and right outer diameters of the first linkage rod are fixedly connected with sub-gears. The outer diameters of the sub-gears are meshed with half-moon gears. The top of the half-moon gear is fixedly connected with a gear ring, and the gear ring passes through the bottom mold assembly and cooperates with it. The rear end of the gear ring is fixedly connected with a positioning block, so that it can be subjected to molding demoulding and blanking processing;

[0007] As a further description of the above technical solution: a buffer plate is fixedly connected to the top of the base, and an operation box is fixedly connected to the top of the buffer plate to support the bottom mold assembly;

[0008] As a further description of the above technical solution: the bottom mold assembly includes a bottom mold body and a threaded inverting module, the bottom of the bottom mold body is fixedly connected to the operation box, the left and right sides of the rear end of the bottom mold body are slidably connected with the threaded inverting module, and the end of the threaded inverting module away from the bottom mold body is fixedly connected with a slider, and the slider and the threaded inverting module move on the top of the operation box, and the bottom adjacent side of the slider is fixedly connected with a return spring, and the return spring is inside the operation box, and the operation box limits the movement of the return spring, so that the top mold can be matched for injection molding;

[0009] As a further description of the above technical solution: the left and right sides of the rear end of the top mold body are provided with slide grooves, and the slide grooves cooperate with the sliders of the bottom mold so that the sliders can slide and move inside the slide grooves;

[0010] As a further description of the above technical solution: the front end of the movable plate is penetrated and fixedly connected with a feed pipe, and the left and right sides of the feed pipe are fixedly connected to the top mold body, so that the interior is injected after the mold is closed;

[0011] As a further description of the above technical solution: the left and right sides of the top of the movable plate are fixedly connected with positioning rods, and the outer diameter of the positioning rods penetrates and is slidably connected to the top plate;

[0012] As a further description of the above technical solution: the left and right sides of the top of the buffer plate are fixedly connected with fixed brackets, the adjacent sides of the fixed brackets are rotatably connected with second linkage rods, and the second linkage rods are fixedly connected with half-moon gears to rotatably support them;

[0013] As a further description of the above technical solution: the left and right sides of the top of the buffer plate are fixedly connected with fixed blocks, and the adjacent sides of the fixed blocks are rotatably connected with the first linkage rod, and the first linkage rod and the buffer plate are rotatably connected, so as to support the rotation of the first linkage rod;

[0014] As a further description of the above technical solution: the front end of the buffer plate is fixedly connected to a fixed concave plate, and the front end of the fixed concave plate is fixedly connected to the electric push rod, so that the electric push rod is fixedly supported, and the front end of the operation box is fixedly connected to a collection plate, so that the molded products can be collected;

[0015] As a further description of the above technical solution: a limiting groove is provided at the bottom of the movable plate, and a limiting rod is fixedly connected to the top of the operating box, and the limiting rod can slide inside the limiting groove to limit and position the top mold and the bottom mold when the mold is closed.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a demoulding device for an injection molding machine. A hydraulic rod is used to move a movable plate and a top mold body downward together to position them. The cooperation of the limit groove and the limit rod enables the movable plate to be completely molded with the operation box. At the same time, when the top mold body moves downward, the slider slides in the slide groove to move the threaded reverse mold block together. After the mold is closed, the interior is injected through the feed pipe, so that the material can be quickly loaded, the mold is closed and injection molding can be started.

[0018] 2. The present invention provides a demoulding device for an injection molding machine. After the product is formed, the hydraulic rod moves upward, the top mold body is separated from the bottom mold body, and the slider is separated from the inside of the slide groove. The return spring at the bottom of the slider separates the threaded reverse mold parts on both sides at the same time, and the threaded connection part is demoulded to prevent the thread from getting stuck and damaging the product and the machine when the whole is demoulded.

[0019] 3. The present invention provides a demoulding device for an injection molding machine, which uses an electric push rod to drive the tooth plate to drive the main gear and the sub-gears on both sides to rotate, so that the half-moon gear and the gear ring perform a semi-circular motion, so that the gear ring is pulled out from the bottom of the bottom mold body, and the product falls into the collection plate. The electric push rod runs in the reverse direction to return the half-moon gear to its original position, and is positioned by the positioning block to return to the threaded reverse module for the next injection molding, so that the material can be unloaded quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a structural diagram of the top mold assembly of the present invention;

[0022] Figure 3 It is a top view of the structure of the lower mold of the present invention;

[0023] Figure 4 It is the internal diagram of the blanking assembly of the present invention;

[0024] Figure 5 is a cross-sectional view of a bottom mold assembly of the present invention;

[0025] Figure 6 It is a structural diagram of the blanking assembly of the present invention;

[0026] Figure 7 It is a cross-sectional view of the blanking component of the present invention.

[0027] In the figure: 1. base; 2. pillar; 3. unloading assembly; 301. electric push rod; 302. tooth plate; 303. main gear; 304. first linkage rod; 305. sub-gear; 306. half-moon gear; 307. second linkage rod; 308. fixed bracket; 309. gear ring; 310. fixed block; 311. positioning block; 4. buffer plate; 5. fixed concave plate; 6. top mold assembly; 601. hydraulic rod; 602. moving plate; 603. top mold body; 604. slide groove; 605. feed pipe; 606. positioning rod; 7. operation box; 8. bottom mold assembly; 801. bottom mold body; 802. threaded inverted module; 803. slider; 804. reset spring; 9. top plate; 10. collecting plate; 11. limit groove; 12. limit rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0030] Combination Figure 1A demoulding device for an injection molding machine comprises: a base 1, the four corners of the top of the base 1 are fixedly connected with pillars 2, the top of the pillars 2 are fixedly connected with a top plate 9 to stably support the entire equipment, the top of the base 1 is fixedly connected with a buffer plate 4, the top of the buffer plate 4 is fixedly connected with an operation box 7 to support a bottom mold assembly 8, the bottom of the movable plate 602 is provided with a limiting groove 11, the top of the operation box 7 is fixedly connected with a limiting rod 12, and the limiting rod 12 can slide in the limiting groove 11 to limit and position the top mold and the bottom mold when the mold is closed.

[0031] Combination Figure 2 , top mold assembly 6, the top of the top plate 9 passes through and is fixedly connected with the top mold assembly 6, the top mold assembly 6 includes a hydraulic rod 601 and a movable plate 602, the bottom of the hydraulic rod 601 passes through the top plate 9 and is fixedly connected to the movable plate 602, the left and right sides of the inside of the movable plate 602 are fixedly connected with the top mold body 603, the hydraulic rod 601 is used to make the movable plate 602 and the top mold body 603 move downward together, and the positioning rod 606 positions them at the same time, and the movable plate 602 and the operation box 7 are fully molded through the cooperation of the limiting groove 11 and the limiting rod 12, so that the bottom can be molded and injection molded, and when the top mold body 603 moves downward, the slider 803 slides in the slide groove 604, so that the threaded inverted module 802 moves and merges together. After the mold is closed, the interior is injection molded through the feeding pipe 605.

[0032] Combination Figure 3 and Figure 4 , bottom mold assembly 8, the bottom of the movable plate 602 is provided with a bottom mold assembly 8, so that the movable plate 602 can be matched and sealed for injection molding, the bottom mold assembly 8 includes a bottom mold body 801 and a threaded inverting module 802, the bottom of the bottom mold body 801 is fixedly connected to the operation box 7, and the left and right sides of the rear end of the bottom mold body 801 are slidably connected with the threaded inverting module 802. After molding, the hydraulic rod 601 moves upward, the top mold body 603 is separated from the bottom mold body 801, and the slider 803 is separated from the inside of the slide groove 604, and the slider is slid through the slide The return spring 804 at the bottom of the block 803 allows the threaded mold blocks 802 on both sides to separate at the same time, and the threaded connection part is demoulded. The end of the threaded mold block 802 away from the bottom mold body 801 is fixedly connected with a slider 803. The slider 803 and the slider 803 and the threaded mold block 802 move on the top of the operating box 7. The adjacent side of the bottom of the slider 803 is fixedly connected with a return spring 804, and the return spring 804 is inside the operating box 7. The operating box 7 limits the movement of it, so that the top mold can be cooperated for injection molding.

[0033] Combination Figure 5, a material removal component 3 is fixedly connected to the top of the front end of the base 1, and the material removal component 3 includes an electric push rod 301 and a toothed plate 302. The rear bottom of the electric push rod 301 is fixedly connected to the base 1, and the output end of the electric push rod 301 is fixedly connected to the toothed plate 302. The top of the toothed plate 302 is meshed with a main gear 303. The middle of the main gear 303 passes through and is fixedly connected with a first linkage rod 304. The left and right outer diameters of the first linkage rod 304 are fixedly connected with sub-gears 305. The left and right sides of the top of the buffer plate 4 are fixedly connected with fixed brackets 308. The adjacent sides of the fixed bracket 308 are rotatably connected with a second linkage rod 307, and the second linkage rod 307 is fixedly connected to the half-moon gear 306 for rotational support. The toothed plate 302 drives the main gear 303 through the electric push rod 301. The gear 303 and the sub-gears 305 on both sides rotate to make the half-moon gear 306 and the gear ring 309 perform a semicircular motion. The outer diameter of the sub-gear 305 is meshed with the half-moon gear 306. The left and right sides of the top of the buffer plate 4 are fixedly connected with fixed blocks 310, and the adjacent side of the fixed block 310 is rotatably connected with the first linkage rod 304, and the first linkage rod 304 is rotatably connected to the buffer plate 4, so as to support the rotation of the first linkage rod 304. The top of the half-moon gear 306 is fixedly connected with the gear ring 309, and the gear ring 309 penetrates the bottom mold assembly 8 and cooperates with it. The rear end of the gear ring 309 is fixedly connected with a positioning block 311. The gear ring 309 is pulled out from the bottom of the bottom mold body 801, and the new product falls into the inside of the collection plate 10, which can be processed by molding, demolding and blanking.

[0034] Combination Figure 6 and Figure 7 The left and right sides of the rear end of the top mold body 603 are both provided with a slide groove 604, and the slide groove 604 cooperates with the slider 803 of the bottom mold, so that the slider 803 can slide and move inside the slide groove 604, and the front end of the movable plate 602 is penetrated and fixedly connected with a feed pipe 605, and the left and right sides of the feed pipe 605 are fixedly connected to the top mold body 603, so that the interior can be injected after the mold is closed, and the left and right sides of the top of the movable plate 602 are fixedly connected with positioning rods 606, and the positioning rods 606 The outer diameter of the buffer plate 4 passes through and is slidably connected to the top plate 9. The front end of the buffer plate 4 is fixedly connected to the fixed concave plate 5, and the front end of the fixed concave plate 5 is fixedly connected to the electric push rod 301, so that the electric push rod 301 is fixedly supported. The semi-moon gear 306 returns to its original position through the reverse operation of the electric push rod 301, and is positioned by the positioning block 311 to return to the inside of the threaded reverse module 802 for the next injection molding. The front end of the operation box 7 is fixedly connected to the collecting plate 10, so that the molded products can be collected and unloaded.

[0035] Working principle: the hydraulic rod 601 is used to move the movable plate 602 and the top mold body 603 downward together, and the positioning rod 606 is used to position them. The movable plate 602 and the operation box 7 are completely molded through the cooperation of the limiting groove 11 and the limiting rod 12. At the same time, when the top mold body 603 moves downward, the slider 803 slides in the slide groove 604, so that the threaded reverse module 802 moves and merges together. After the mold is closed, the internal part is injected through the feed pipe 605. After molding, the hydraulic rod 601 moves upward, the top mold body 603 is separated from the bottom mold body 801, and the slider 803 is separated from the slide groove 604. The return spring 804 at the bottom of the slider 803 separates the threaded mold blocks 802 on both sides at the same time, and the threaded connection parts are demoulded. The tooth plate 302 drives the main gear 303 and the sub-gears 305 on both sides to rotate through the electric push rod 301, so that the half-moon gear 306 and the gear ring 309 perform a semi-circular motion, so that the gear ring 309 is pulled out from the bottom of the bottom mold body 801, and the molded product falls into the collecting plate 10. The electric push rod 301 runs in the reverse direction to make the half-moon gear 306 return to its original position, and is positioned by the positioning block 311 to return to the threaded mold block 802 for the next injection molding.

[0036] 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 demoulding device for an injection molding machine, characterized in that: include: A base (1), wherein four corners of the top of the base (1) are fixedly connected to pillars (2), and the top of the pillars (2) is fixedly connected to a top plate (9); A top mold assembly (6), wherein the top of the top plate (9) passes through and is fixedly connected to the top mold assembly (6), the top mold assembly (6) comprises a hydraulic rod (601) and a movable plate (602), the bottom of the hydraulic rod (601) passes through the top plate (9) and is fixedly connected to the movable plate (602), and the left and right sides of the inside of the movable plate (602) are fixedly connected to the top mold body (603), so that the bottom can be molded and injection molded; A bottom mold assembly (8), wherein the bottom of the movable plate (602) is provided with the bottom mold assembly (8), so that the movable plate (602) can be injection molded with a matching seal; A blanking component (3), wherein the front end top of the base (1) is fixedly connected with the blanking component (3), the blanking component (3) comprises an electric push rod (301) and a toothed plate (302), the rear bottom of the electric push rod (301) is fixedly connected to the base (1), the output end of the electric push rod (301) is fixedly connected with the toothed plate (302), the top of the toothed plate (302) is meshingly connected with a main gear (303), the middle of the main gear (303) is penetrated by and fixedly connected with a first linkage rod (304), the left and right outer diameters of the first linkage rod (304) are fixedly connected with sub-gears (305), the outer diameters of the sub-gears (305) are meshingly connected with a half-moon gear (306), the top of the half-moon gear (306) is fixedly connected with a gear ring (309), and the gear ring (309) penetrates the bottom mold component (8) and cooperates with it, and the rear end of the gear ring (309) is fixedly connected with a positioning block (311), so that it can be subjected to molding demoulding blanking processing; The top of the base (1) is fixedly connected to a buffer plate (4), and the top of the buffer plate (4) is fixedly connected to an operating box (7), which can support the bottom mold assembly (8); The bottom mold assembly (8) comprises a bottom mold body (801) and a threaded inverting module (802), the bottom of the bottom mold body (801) is fixedly connected to the operating box (7), the left and right sides of the rear end of the bottom mold body (801) are slidably connected to the threaded inverting module (802), the end of the threaded inverting module (802) away from the bottom mold body (801) is fixedly connected to a slider (803), the slider (803) and the slider (803) and the threaded inverting module (802) move on the top of the operating box (7), the bottom adjacent side of the slider (803) is fixedly connected to a return spring (804), and the return spring (804) is inside the operating box (7), and the operating box (7) limits the movement of the slider, so that the top mold can be matched for injection molding; The top left and right sides of the buffer plate (4) are fixedly connected to fixed brackets (308), and the adjacent sides of the fixed brackets (308) are rotatably connected to the second linkage rod (307), and the second linkage rod (307) is fixedly connected to the half-moon gear (306) to rotatably support it; The top left and right sides of the buffer plate (4) are fixedly connected to fixed blocks (310), and the adjacent sides of the fixed blocks (310) are rotatably connected to first linkage rods (304), and the first linkage rods (304) are rotatably connected to the buffer plate (4), so that the rotation of the first linkage rods (304) is supported.

2. The demoulding device of an injection molding machine according to claim 1, characterized in that: Slide grooves (604) are provided on both left and right sides of the rear end of the top mold body (603), and the slide grooves (604) cooperate with the sliders (803) of the bottom mold so that the sliders (803) can slide and move inside the slide grooves (604).

3. The demoulding device of an injection molding machine according to claim 1, characterized in that: A feed pipe (605) penetrates and is fixedly connected to the front end of the movable plate (602), and both left and right sides of the feed pipe (605) are fixedly connected to the top mold body (603), so that injection molding can be performed inside after the mold is closed.

4. The demoulding device for an injection molding machine according to claim 1, characterized in that: Positioning rods (606) are fixedly connected to both left and right sides of the top of the movable plate (602), and the outer diameter of the positioning rods (606) passes through and is slidably connected to the top plate (9).

5. The demoulding device for an injection molding machine according to claim 1, characterized in that: The front end of the buffer plate (4) is fixedly connected to a fixed concave plate (5), and the front end of the fixed concave plate (5) is fixedly connected to an electric push rod (301), so that the electric push rod (301) is fixedly supported, and the front end of the operation box (7) is fixedly connected to a collection plate (10), so that the formed products can be collected and discharged.

6. The demoulding device for an injection molding machine according to claim 1, characterized in that: The bottom of the movable plate (602) is provided with a limiting groove (11), the top of the operation box (7) is fixedly connected to a limiting rod (12), and the limiting rod (12) can slide inside the limiting groove (11) to limit and position the top mold and the bottom mold when the mold is closed.

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