Suspension type three-linkage inner drawing mold structure

Abstract

The utility model provides a suspension type three-linkage inner pulling mold structure which comprises an upper fixing plate, a base plate, a fixed mold plate, a movable mold plate, an ejector plate and a lower fixing plate, a fixed mold core is embedded in the fixed mold plate, a movable mold core is embedded in the movable mold plate, a first sliding block, two guide blocks, a second sliding block, a third sliding block and a push plate are arranged on the movable mold plate, and a mold core is arranged on the third sliding block. The mold core is slidably provided with a sliding rod, one end, arranged in the mold core, of the sliding rod is slidably connected with two convex blocks, an ejector rod is mounted on the ejector plate and is connected with a second sliding block and a third sliding block, and during mold closing, the movable mold core, the fixed mold core, the first sliding block and the third sliding block form a cavity for forming a toothbrush handle; during mold opening, the movable mold core and the fixed mold core are separated, the first sliding block leaves one end of the toothbrush handle, the sliding rod drives the protruding block to sink into the mold core, the ejector pin plate upwards pushes the ejector rod to push the second sliding block, the third sliding block and the push plate to move upwards, the toothbrush handle is lifted up from the movable mold core and meanwhile pushed to fall off from the mold core, and forming and demolding of the toothbrush handle are achieved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a suspended three-linkage inner-drawing mold structure. Background Art

[0002] The mold is a tool used to make molded products. Different shapes of molds are used to make products of different shapes, such as Figure 1 The toothbrush handle shown in the figure is cylindrical, and a recessed portion is provided on the inner wall of the toothbrush handle near the opening. The traditional toothbrush handle mold design adopts a vertical mold opening method, using large sliders on both sides. The rear mold needs to additionally add an inner pull-out slider and a push plate. The overall volume is large and the mold cost is increased. The parting line of the product is located on the two large sliders. Due to the movement of the sliders, the gap needs to be considered, which can easily lead to quality problems such as poor product clamping line and strain, and increases the frequency of mold repair, affecting production efficiency. Therefore, a new mold structure for molding and demolding of toothbrush handles is urgently needed. Utility Model Content

[0003] The utility model provides a suspended three-link inner draw mold structure, aiming to solve the technical problems mentioned in the above technical background.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a suspended three-linkage inner drawing mold structure, comprising an upper fixed plate, a pad, a fixed mold plate, a movable mold plate, an ejector plate and a lower fixed plate from top to bottom, the fixed mold plate is embedded with a fixed mold core, the movable mold plate is embedded with a movable mold core, the fixed mold core and the movable mold core are respectively provided with a plurality of semicircular grooves, and the movable mold plate is respectively provided with a first molding module and a second molding module on both sides of the movable mold core;

[0005] The first molding module includes a first slider, and a molding cover is arranged on the end surface of the first slider facing the movable mold core; the second molding module includes two guide blocks, a second slider, a third slider and a push plate, the second slider and the third slider are detachably connected, guide blocks and guide grooves are provided on the side surfaces of the guide blocks, a cavity connected to the outside is arranged inside the second slider, a core is arranged at one end of the third slider facing the fixed mold core, the core can slidably pass through the push plate and be placed on the movable mold core, a sliding rod can be slidably arranged on the core, one end of the sliding rod is placed in the cavity of the second slider, and the other end is placed in the core, two protrusions can be slidably connected on both sides of one end of the sliding rod placed in the core, the protrusion can slidably protrude out of the core, and a number of ejector rods are installed on the ejector plate, the ejector rods can slidably pass through the movable template to connect the second slider and the third slider.

[0006] Further, the guide block is vertically arranged on the side of the guide block, the guide groove includes a vertical part and an inclined part, the second sliding block can slide along the guide block, and the push plate slides along the guide groove.

[0007] Furthermore, a connecting block is arranged at one end of the slide bar placed in the cavity of the second slide block, the connecting block is provided with an inclined T-shaped slot, and the fixed template is provided with a first shovel base, and the first shovel base can be slidably inserted into the T-shaped slot.

[0008] Furthermore, through holes are further opened on both sides of the second slider, and limiting rods are arranged on both sides of the push plate. One end of the limiting rod is fixed to the push plate, and the other end can slide through the third slider and be placed in the through hole. A block is arranged at one end of the limiting rod placed in the through hole.

[0009] Furthermore, the fixed template is provided with a second shovel base, and the second shovel base is matched with the first sliding block in an inclined sliding manner.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model discloses a suspended three-linkage inner drawing mold structure, comprising an upper fixed plate, a pad plate, a fixed mold plate, a movable mold plate, an ejector plate and a lower fixed plate, wherein a fixed mold core is embedded in the fixed mold plate, and a movable mold core is embedded in the movable mold plate, and a plurality of semicircular grooves are respectively provided in the fixed mold core and the movable mold core, and a first molding module and a second molding module are respectively provided on the movable mold core at two sides; the first molding module comprises a first slider, and a molding cover is provided on the end surface of the first slider facing the movable mold core; the second molding module comprises two guide blocks, a second slider, a third slider and a push plate, guide blocks and guide grooves are provided on the side surfaces of the guide blocks, a cavity connected to the outside is provided inside the second slider, a core is provided at one end of the third slider facing the fixed mold core, the core can slidably pass through the push plate and be placed on the movable mold core, a sliding rod can be slidably provided on the core, one end of the sliding rod is placed in the cavity of the second slider, and the other end is placed in the core, and two protrusions can be slidably connected on both sides of one end of the sliding rod placed in the core, and the protrusions protrude out of the core, and a plurality of ejector rods are installed on the ejector plate, and the ejector rod can slidably pass through the movable mold plate to connect the second slider and the third slider. When the mold is closed, the semicircular grooves of the movable mold core and the fixed mold core, the molding cover of the first slider, and the core of the third slider are used for injection molding the toothbrush handle; when the mold is opened, the movable mold plate and the fixed mold plate are separated, the movable mold core and the fixed mold core are separated, the first slider drives the molding cover to leave one end of the toothbrush handle, the slide rod is pulled out of the core and drives the protrusion to sink into the core, the ejector plate pushes the ejector rod upward to push the second slider and the third slider to move upward, lift the toothbrush handle from the movable mold core, and the push plate slides along the guide groove while separating from the third slider, pushing the toothbrush handle off the core, thereby realizing the molding and demolding of the toothbrush handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 is a schematic diagram of the structure of a toothbrush handle;

[0014] Figure 2 It is a schematic diagram of the structure of the suspended three-link inner draw mold of the utility model;

[0015] Figure 3 It is a schematic diagram of the movable template structure of the utility model suspended three-link inner drawing mold structure;

[0016] Figure 4 It is a schematic diagram of the fixed template structure of the utility model suspended three-link inner drawing mold structure;

[0017] Figure 5 It is a schematic diagram of the structure of the first molding module and the second molding module of the suspended three-link inner-drawing mold structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the second molding module structure of the utility model suspended three-link inner draw mold structure;

[0019] Figure 7 This is an exploded view of the second molding module of the suspended three-link inner-drawing mold structure of the utility model;

[0020] Figure 8 It is a cross-sectional view of the structure of the suspended three-link inner-drawing mold of the utility model.

[0021] Main component symbols

[0022] 10. Upper fixing plate;

[0023] 20. Pad;

[0024] 30, fixed mold plate; 301, fixed mold core; 302, first shovel base; 303, second shovel base;

[0025] 40. Moving mold plate; 401. Moving mold core;

[0026] 41. first molding module; 411. first slider; 4111. molding cover;

[0027] 42, second molding module; 421, guide block; 4211, guide block; 4212, guide groove; 422, second slider; 423, third slider; 4231, core; 4232, connecting block; 4233, slide bar; 4234, convex block; 424, push plate; 4241, limit rod;

[0028] 50, ejector plate; 501, ejector pin;

[0029] 60, lower fixing plate;

[0030] 70. Toothbrush handle; 701. Recessed portion. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] Example

[0035] Figure 1 The toothbrush handle 70 shown is cylindrical, and a recessed portion 701 is provided on the inner wall of the toothbrush handle 70 near the opening.

[0036] Reference Figure 2-4 As shown, the utility model discloses a suspended three-linkage inner drawing mold structure, including an upper fixed plate 10, a pad 20, a fixed mold plate 30, a movable mold plate 40, an ejector plate 50 and a lower fixed plate 60 from top to bottom, the fixed mold plate 30 is embedded with a fixed mold core 301, the movable mold plate 40 is embedded with a movable mold core 401, the fixed mold core 301 and the movable mold core 401 are respectively provided with a plurality of semicircular grooves, and the movable mold core 40 is respectively provided with a first molding module 41 and a second molding module 42 on both sides of the movable mold core 401 on the movable mold plate 40; specifically, when the mold is closed, the movable mold plate 40 and the fixed mold plate 30 drive the movable mold core 401 and the fixed mold core 301 to close, and the upper and lower semicircular grooves form a cylindrical cavity for molding the main body of the toothbrush handle 70, and the first molding module 41 and the second molding module 42 are respectively located at the two ends of the cylindrical cavity, i.e., they constitute the cavity for molding the toothbrush handle 70.

[0037] Reference Figure 5-8 As shown, the first molding module 41 includes a first slider 411, and a molding cover 4111 is set on the end surface of the first slider 411 facing the movable mold core 401; specifically, the fixed mold plate 30 is provided with a second shovel base 303, and the second shovel base 303 is inclined and slidably matched with the first slider 411. When the mold is closed, the second shovel base 303 drives the first slider 411 to approach the movable mold core 401, and drives the molding cover 4111 to cover one end of the movable mold core 401 and the fixed mold core 301, which is used to mold one end of the toothbrush handle 70. When the mold is opened, the fixed mold plate 30 drives the first slider 411 to leave the movable mold core 401, and drives the molding cover 4111 to leave one end of the handle.

[0038] Reference Figure 5-8As shown, the second molding module 42 includes two guide blocks 421, a second slider 422, a third slider 423 and a push plate 424. A guide block 4211 and a guide groove 4212 are provided on the side of the guide block 421. The guide block 4211 is vertically arranged on the side of the guide block 421. The guide groove 4212 includes a vertical portion and an inclined portion. The second slider 422 can slide along the guide block 4211, and the push plate 424 slides along the guide groove 4212. A plurality of ejector rods 501 are installed on the ejector plate 50. The ejector rods 501 can slidably pass through the movable template 40 to connect the second slider 422 and the third slider 423. When the mold is opened, the ejector plate 50 pushes the ejector rod 501 to push the second slider 422 to move upward first, and the second slider 422 and the third slider 423 are connected. The slider 423 is connected, and because the core 4231 set on the third slider 423 passes through the push plate 424, the second slider 422 moves vertically along the guide block 4211, and the third slider 423 drives the push plate 424 to move upward along the guide groove 4212. The second slider 422, the third slider 423 and the push plate 424 move upward so that the molded toothbrush handle 70 leaves the movable mold core 401. Guide wheels are set at both ends of the push plate 424 and are placed in the guide groove 4212. The second slider 422 and the third slider 423 are detachably connected. Therefore, when the push plate 424 moves along the inclined part entering the guide groove 4212, the push plate 424 is separated from the third slider 423, pushing the toothbrush handle 70 to fall off the core 4231.

[0039] Furthermore, through holes are further opened on both sides of the second slider 422, and limiting rods 4241 are set on both sides of the push plate 424. One end of the limiting rod 4241 is fixed to the push plate 424, and the other end can slide through the third slider 423 and be placed in the through hole. A clamping block is set at one end of the limiting rod 4241 placed in the through hole. Specifically, when the push plate 424 is separated from the third slider 423, the limiting rod 4241 can prevent the push plate 424 from being completely separated from the third slider 423, and the through hole plays a role in avoiding the limiting rod 4241.

[0040] Reference Figure 5-8 As shown, a cavity connected to the outside is provided inside the second slider 422, and a core 4231 is provided at one end of the third slider 423 facing the fixed mold core 301. The core 4231 can slide through the push plate 424 and be placed on the movable mold core 401. Specifically, when the mold is closed, the core 4231 passes through the push plate 424 and is placed between the movable mold core 401 and the fixed mold core 301 to form the internal cavity of the toothbrush handle 70. When the mold is opened, the push plate 424 is separated from the third slider 423 to push the toothbrush handle 70 away from the core 4231.

[0041] Reference Figure 5-8As shown, a slide bar 4233 is slidably arranged in the core 4231, one end of the slide bar 4233 is placed in the cavity of the second slider 422, and the other end is placed in the core 4231. The slide bar 4233 is placed in the core 4231. The two sides of the one end of the slide bar 4233 can be slidably connected to the two protrusions 4234, and the protrusions 4234 can slidably protrude out of the core 4231. The corresponding two sides of the core 4231 are provided with square holes for the protrusions 4234 to protrude. Specifically, a connecting block 4232 is arranged at one end of the slide bar 4233 placed in the cavity of the second slider 422, and the connecting block 4232 is provided with an inclined T-slot. The fixed mold plate 30 is provided with a first shovel base 302, and the first shovel base 302 can be slidably inserted into the T-slot. When the mold is closed, the first shovel base 30 2 is inserted into the T-slot to drive the connecting block 4232 to push the slide bar 4233 to slide into the core 4231. One end of the slide bar 4233 placed in the core 4231 is slidably connected to the two protrusions 4234. When the slide bar 4233 moves into the core 4231, it pushes the two protrusions 4234 to protrude from the surface of the core 4231 from the square holes on both sides of the core 4231. The two protrusions 4234 are used to form the recessed portion 701 near the opening position inside the toothbrush handle 70. When the mold is opened, the fixed mold plate 30 drives the first shovel base 302 to drive the connecting block 4232, and drives the liver guard to be pulled out from the core 4231, so that the two protrusions 4234 sink into the core 4231, that is, the protrusions 4234 are out of the recessed portion 701 of the toothbrush handle 70.

[0042] Mold closing process: the movable mold core 401 and the fixed mold core 301 are closed to form a cylindrical cavity, the first slider 411 drives the molding cover 4111 to cover one end of the cylindrical cavity, the second slider 422 and the third slider 423 are close to the other end of the cylindrical cavity, and the core 4231 is placed in the cylindrical cavity to form the internal cavity of the toothbrush handle 70.

[0043] Mold opening process: first, the movable mold plate 40 and the fixed mold plate 30 are separated to drive the movable mold core 401 and the fixed mold core 301 to separate, and the molding cover 4111 of the first slider 411 leaves one end of the toothbrush handle 70. At the same time, the slide rod 4233 is pulled out from the inside of the core 4231 toward the direction of the second slider 422, driving the protrusions 4234 on both sides of the core 4231 to sink into the core 4231, that is, to escape from the recessed portion 701 of the toothbrush handle 70. Then, the ejector plate 50 pushes the second slider 422, the third slider 423 and the push plate 424 upward to leave the movable mold plate 40, driving the toothbrush handle 70 to leave the movable mold core 401, and the push plate 424 slides along the inclined portion of the guide groove 4212, and the second slider 422 slides along the guide block 4211. The second slider 422 and the third slider 423 are detachably connected, and the push plate 424 leaves the third slider 423 to push the toothbrush handle 70 to separate from the core 4231.

[0044] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A suspended three-link inner draw mold structure, characterized in that: It includes an upper fixed plate, a pad, a fixed mold plate, a movable mold plate, an ejector plate and a lower fixed plate from top to bottom, the fixed mold plate is embedded with a fixed mold core, the movable mold plate is embedded with a movable mold core, the fixed mold core and the movable mold core are respectively provided with a plurality of semicircular grooves, and the movable mold plate is respectively provided with a first molding module and a second molding module on both sides of the movable mold core; The first molding module includes a first slider, and a molding cover is arranged on the end surface of the first slider facing the movable mold core; the second molding module includes two guide blocks, a second slider, a third slider and a push plate, the second slider and the third slider are detachably connected, guide blocks and guide grooves are provided on the side surfaces of the guide blocks, a cavity connected to the outside is arranged inside the second slider, a core is arranged at one end of the third slider facing the fixed mold core, the core can slidably pass through the push plate and be placed on the movable mold core, a sliding rod can be slidably arranged on the core, one end of the sliding rod is placed in the cavity of the second slider, and the other end is placed in the core, two protrusions can be slidably connected on both sides of one end of the sliding rod placed in the core, the protrusion can slidably protrude out of the core, and a number of ejector rods are installed on the ejector plate, the ejector rods can slidably pass through the movable template to connect the second slider and the third slider.

2. The suspended three-link inner-drawing mold structure according to claim 1 is characterized in that: The guide block is vertically arranged on the side of the guide block, the guide groove includes a vertical part and an inclined part, the second sliding block can slide along the guide block, and the push plate slides along the guide groove.

3. The suspended three-link inner-drawing mold structure according to claim 1 is characterized in that: A connecting block is arranged at one end of the slide bar placed in the cavity of the second slide block, and an inclined T-shaped slot is provided on the connecting block. A first shovel base is arranged on the fixed template, and the first shovel base can be slidably inserted into the T-shaped slot.

4. The suspended three-link inner-drawing mold structure according to claim 1 is characterized in that: Through holes are further opened on both sides of the second slider, and limiting rods are set on both sides of the push plate. One end of the limiting rod is fixed to the push plate, and the other end can slide through the third slider and be placed in the through hole. A block is set at one end of the limiting rod placed in the through hole.

5. The suspended three-link inner-drawing mold structure according to claim 1 is characterized in that: The fixed template is provided with a second shovel base, and the second shovel base is in inclined sliding cooperation with the first sliding block.

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