An integrated injection molding toothbrush device

Abstract

The present invention belongs to the technical field of toothbrush injection molding, and specifically relates to an integrated injection molding toothbrush device, comprising a fixed base, an injection molding part provided on the upper portion of the fixed base, the injection molding part being connected to the input end of an external feeding device, and the melted raw material being discharged into the interior of the injection molding part through the external feeding device for shaping; a pusher part being provided on one side of the injection molding part, and the pusher part being able to use the power when the injection molding part is opened to extrude the finished product inside the injection molding part for demoulding after the injection molding part is shaped; a sprayer part being provided on the upper portion of the injection molding part, and the sprayer part being able to use the power when the injection molding part is opened to descend into the interior of the injection molding part and spray a release agent on the interior of the injection molding part. The invention realizes efficient and low-consumption production by controlling the injection molding, demoulding and spraying processes through a single power source, and combines a multi-stage progressive demoulding mechanism with precise spraying technology, thereby improving product quality and mold life.

Description

Technical Field

[0001] The invention belongs to the technical field of toothbrush injection molding, and particularly relates to an integrated injection molding toothbrush device. Background Art

[0002] Traditional toothbrush injection molding equipment typically utilizes a standalone modular design, requiring the injection, demolding, and spraying processes to be performed step by step, relying on multiple independent power sources (such as cylinders and motors). This design not only results in a complex structure and a large footprint, but also poses challenges such as high energy consumption and insufficient operational stability due to the poor synergy between these multiple power sources. For example, during the demolding phase, ejectors are often driven by independent cylinders or motors to forcibly eject the product. This concentrated, instantaneous thrust can easily cause excessive stress in the toothbrush handle, leading to deformation or surface scratches. Furthermore, traditional ejector demolding lacks a progressive separation mechanism, which can easily lead to product adhesion to the mold or incomplete demolding, requiring secondary manual intervention and further reducing efficiency. During the spraying process, the application of the release agent typically relies on manual operation or the use of an additional robotic arm. The former results in uneven spraying, wastes consumables, and poses a safety hazard to personnel. The latter requires complex motion control programming, increasing equipment cost and maintenance complexity. Furthermore, spraying accuracy is significantly affected by robotic arm positioning errors, making it difficult to achieve full and uniform spray coverage of the mold cavity.

[0003] As market demand for personalized, lightweight, and high-quality toothbrushes increases, the limitations of traditional equipment in terms of efficiency, energy consumption, and yield rate become increasingly prominent. Therefore, a highly integrated, power-synergistic, all-in-one injection molding machine is needed. This machine optimizes process connections through mechanical linkage, reduces power redundancy, and introduces adaptive demolding and precision spraying technologies to overcome existing production bottlenecks and meet the demand for efficient, low-loss, and highly consistent toothbrush mass production. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated injection molding toothbrush device, which can control the injection molding, demoulding and spraying processes through a single power source, combine a multi-stage progressive demoulding mechanism with precise spraying technology, achieve high-efficiency and low-consumption production, and improve product quality and mold life.

[0005] The technical solutions adopted by the present invention are as follows:

[0006] An integrated injection molding toothbrush device includes a fixed base, an injection molding part is provided on the upper portion of the fixed base, and the injection molding part is connected to the input end of an external feeding device, and the melted raw material is discharged into the injection molding part by the external feeding device for shaping;

[0007] A pusher is provided on one side of the injection molding part. After the molding of the injection molding part is completed, the pusher can use the power when the injection molding part is opened to squeeze out the molded product inside the injection molding part for demoulding;

[0008] The upper part of the injection molding part is provided with a spraying part, and the spraying part can use the power when the injection molding part is opened to descend into the interior of the injection molding part and spray the release agent on the interior of the injection molding part;

[0009] The injection molding part includes a fixed plate, an extrusion cylinder, a linkage beam, a sliding seat, an elastic extrusion part, a linkage rod and a lifting seat. The fixed plate is fixedly connected to the upper part of the fixed base, one end of the extrusion cylinder is fixedly connected to the upper part of the fixed base, one end of the linkage beam is fixedly connected to the output end of the extrusion cylinder, and the linkage beam is fixedly connected to the interior of the fixed base, the sliding seat is fixedly connected to the other end of the linkage beam, the elastic extrusion part is arranged inside the linkage beam, and one end of the elastic extrusion part is fixedly connected to the interior of the linkage beam, and the other end of the elastic extrusion part is in contact with the pushing part, and the linkage rod is provided with multiple groups, one end of the linkage rod is respectively rotatably connected to the corresponding fixed plate and the upper part of the sliding seat, and the two ends of the lifting seat are respectively rotatably connected to the other end of the corresponding linkage rod.

[0010] In a preferred solution, sliding grooves are provided on both sides of the fixing plate, and the interior of the sliding grooves is slidably connected to the linkage beam.

[0011] In a preferred embodiment, the pushing part includes a follower seat, an extrusion plate, a mounting seat, a guide plate, a pushing seat, a pushing rod, a limit rod and an elastic reset member, the follower seat is slidably connected to the interior of the linkage beam, and the interior of the follower seat contacts the elastic extrusion member, the extrusion plate is fixedly connected to the follower seat, the mounting seat is fixedly connected to one side of the fixed plate, the guide plate is arranged on the upper and lower surfaces of the mounting seat, and the guide plate is slidably connected to the corresponding extrusion plate, the pushing seat is slidably arranged inside the mounting seat, one end of the pushing rod is fixedly connected to one end of the pushing seat, and the other end of the pushing rod is slidably connected to the interior of the fixed plate, the limit rod is slidably arranged inside the pushing seat, and the upper and lower ends of the limit rod are both slidably connected to the interiors of the extrusion plate and the guide plate, and the elastic reset member is arranged between the pushing seat and the mounting seat.

[0012] In a preferred solution, rotating sleeves are rotatably provided at the upper and lower ends of the limiting rod, and the outer edges of the rotating sleeves are in contact with the inner parts of the extrusion plate and the guide plate.

[0013] In a preferred embodiment, a first extrusion groove is provided inside the extrusion plate, and the interior of the first extrusion groove is divided into an inclined extrusion section and a horizontal stationary section.

[0014] In a preferred solution, a first pushing groove is provided inside the guide plate, and a longitudinal pushing section and a transverse sliding section are provided inside the first pushing groove.

[0015] In a preferred embodiment, a second extrusion groove is provided inside the extrusion plate, and the interior of the second extrusion groove is only an inclined extrusion section.

[0016] In a preferred embodiment, a second pushing groove is further provided inside the guide plate, and a longitudinal pushing section, a transverse sliding section and a longitudinal ejecting section are provided inside the second pushing groove.

[0017] In a preferred embodiment, the spraying part includes a mounting frame, a storage box, a delivery pump, a spray rod, a rotating gear, a rack and an electric push rod. The mounting frame is fixedly connected to the lifting seat, the storage box is fixedly connected to the inside of the mounting frame, the delivery pump is fixedly connected to the inside of the mounting frame, the input end of the delivery pump is connected to the inside of the storage box, the spray rod is rotatably set at the lower end of the mounting frame, the rotating gear is fixedly connected to the middle part of the spray rod, the rack is slidably connected to the inside of the mounting frame, the rack is meshed with the outer edge of the rotating gear, the electric push rod is fixedly connected to the inside of the mounting frame, and the output end of the electric push rod is fixedly connected to the upper end of the rack.

[0018] In a preferred embodiment, the nozzle of the nozzle of the spray bar is configured to be a flat fan shape.

[0019] The technical effects achieved by the present invention are:

[0020] The present invention uses an extrusion cylinder as a single power source to achieve linkage control of the injection, demoulding and spraying processes. The linkage beam and the sliding seat of the injection part are precisely opened and closed under the drive of the cylinder, synchronously triggering the elastic extrusion parts of the push part to drive the multi-stage demoulding action, as well as the lifting and lowering spraying of the lifting seat of the spraying part. This design abandons the traditional multi-motor drive mode and uses a mechanical transmission chain to decompose the cylinder power into vertical and horizontal bidirectional motions. It not only reduces energy consumption, but also accurately controls the insertion depth of the spraying part through the diamond four-bar structure, ensuring seamless connection of the process, greatly shortening the single-cycle operation time, and significantly improving the opening and closing accuracy of the mold.

[0021] The present invention adopts the design of the push part, through the stepped coordination of the first extrusion groove and the second extrusion groove, combined with the displacement difference design of the first push groove and the second push groove, to drive the two sets of push rods to perform differentiated demolding actions. In the first demolding stage, the two push rods are ejected synchronously to apply the initial demolding force; in the second demolding stage, the single rod is delayed and retracted through the lateral sliding section to form a gradual separation effect; in the third demolding stage, the ejection section is pushed twice to completely separate the product and the mold. This multi-stage demolding mechanism effectively reduces demolding resistance, avoids scratches or deformation on the product surface, and significantly improves the demolding success rate and product quality.

[0022] This invention utilizes a spraying unit designed to connect to the lift base via a linkage rod. The unit automatically descends into the casting cavity upon mold separation. An electric push rod drives the rack and gears, enabling the sprayer to swing at multiple angles. The spray head utilizes a flat, fan-shaped nozzle design, combined with a delivery pump to precisely control the release agent flow rate, creating a uniform linear spray coverage. This automated spraying system requires no human intervention, and the spray angle and dosage are adjustable, ensuring uniform adhesion of the release agent to the mold surface. This reduces material waste, extends mold life, and ensures continuous and consistent production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the overall interior of an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of an open injection molding unit according to an embodiment of the present invention;

[0026] Figure 4 It is an overall internal exploded view of an embodiment of the present invention;

[0027] Figure 5 This is an exploded view of the injection molding part of an embodiment of the present invention;

[0028] Figure 6 This is an exploded view of a pushing portion of an embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of a limit rod according to an embodiment of the present invention;

[0030] Figure 8 This is an exploded view of the spraying portion of an embodiment of the present invention;

[0031] Figure 9 is a side sectional view of a spraying portion of an embodiment of the present invention;

[0032] Figure 10 2. It is a schematic diagram of an extrusion plate of a pushing portion according to an embodiment of the present invention;

[0033] Figure 11 2. It is a schematic diagram of a guide plate of a pushing portion according to an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the pushing movement of the extrusion plate according to an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of an embodiment of the present invention showing a limiting rod located inside a sliding section of a second pushing groove;

[0036] Figure 14 2. This is a schematic diagram of an embodiment of the present invention showing a limiting rod located inside an extrusion section of a first extrusion groove;

[0037] Figure 15 This is a schematic diagram of an embodiment of the present invention showing a limiting rod located inside a first pushing groove pushing section;

[0038] Figure 16 2. This is a schematic diagram of an embodiment of the present invention showing a limiting rod located inside a stationary section of a first extrusion groove;

[0039] Figure 17 This is a schematic diagram of an embodiment of the present invention showing a limiting rod located inside the ejection section of the second pushing groove;

[0040] Figure 18 2. This is a schematic diagram of the position where the pushing portion of the embodiment of the present invention has completely pushed out the extrusion plate;

[0041] Figure 19 This is a schematic diagram of the position where the pushing portion of an embodiment of the present invention has completely pushed out the guide plate.

[0042] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0043] 1. Fixed base; 2. Injection molding unit; 201. Fixed plate; 202. Extrusion cylinder; 203. Linkage beam; 204. Sliding seat; 205. Elastic extrusion member; 206. Linkage rod; 207. Lifting seat; 3. Pushing unit; 301. Follower seat; 302. Extrusion plate; 3021. First extrusion groove; 3022. Second extrusion groove; 303. Mounting seat; 304. Guide plate; 3041. First pushing groove; 3042. Second pushing groove; 305. Pushing seat; 306. Pushing rod; 307. Limiting rod; 3071. Rotating sleeve; 308. Elastic reset member; 4. Spraying unit; 401. Mounting frame; 402. Storage box; 403. Delivery pump; 404. Spraying rod; 405. Rotating gear; 406. Rack; 407. Electric push rod. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0047] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0048] See also Figures 1 to 19 As shown, the present invention provides an integrated injection molding toothbrush device, comprising a fixed base 1, an injection molding part 2 is provided on the upper portion of the fixed base 1, and the injection molding part 2 is connected to the input end of an external feeding device, and the melted raw material is discharged into the injection molding part 2 by the external feeding device for shaping;

[0049] A pusher 3 is provided on one side of the injection molding part 2. After the injection molding part 2 has finished molding, the pusher 3 can use the power when the injection molding part 2 is opened to squeeze out the molded product inside the injection molding part 2 for demoulding.

[0050] A spraying part 4 is provided on the upper part of the injection molding part 2. The spraying part 4 can use the power when the injection molding part 2 is opened to descend into the interior of the injection molding part 2 and spray the mold release agent on the interior of the injection molding part 2.

[0051] The injection molding part 2 includes a fixed plate 201, an extrusion cylinder 202, a linkage beam 203, a sliding seat 204, an elastic extrusion piece 205, a linkage rod 206 and a lifting seat 207. The fixed plate 201 is fixedly connected to the upper part of the fixed base 1, one end of the extrusion cylinder 202 is fixedly connected to the upper part of the fixed base 1, one end of the linkage beam 203 is fixedly connected to the output end of the extrusion cylinder 202, and the linkage beam 203 is fixedly connected to the interior of the fixed base 1, the sliding seat 204 is fixedly connected to the other end of the linkage beam 203, the elastic extrusion piece 205 is arranged inside the linkage beam 203, and one end of the elastic extrusion piece 205 is fixedly connected to the interior of the linkage beam 203, and the other end of the elastic extrusion piece 205 contacts the pushing part 3, and a plurality of linkage rods 206 are provided. One end of the linkage rod 206 is rotatably connected to the corresponding fixed plate 201 and the upper part of the sliding seat 204, and the two ends of the lifting seat 207 are rotatably connected to the other end of the corresponding linkage rod 206.

[0052] Specifically, when the fixed plate 201 and the sliding seat 204 are in the assembled state, an external feeding device squeezes the molten raw material into the shaping cavity between the fixed plate 201 and the sliding seat 204, so that the raw material is shaped into the shape of a toothbrush handle. Then, the extrusion cylinder 202 contracts to drive the linkage beam 203 to move. The movement of the linkage beam 203 drives the sliding seat 204 to move, so that the fixed plate 201 and the sliding seat 204 are separated, and the formed toothbrush handle is exposed inside the fixed plate 201, thereby completing the shaping and exposure of the toothbrush handle.

[0053] At the same time, the movement of the linkage beam 203 can drive the pushing portion 3 to move out of the interior of the fixed plate 201, and push the toothbrush handle inside the fixed plate 201 out of the way, so that the toothbrush handle falls out of the interior of the fixed plate 201 and the sliding seat 204, completing the demoulding of the toothbrush handle;

[0054] At the same time, when the sliding seat 204 is separated from the fixed plate 201, the fixed plate 201 and the sliding seat 204 pull one end of the linkage rod 206 to move, and the linkage rod 206 drives the lifting seat 207 at the other end to move downward, so that the spraying part 4 at the lifting seat 207 gradually enters between the fixed plate 201 and the sliding seat 204. After the toothbrush handle falls, the spraying part 4 sprays the release agent inside the casting cavity between the fixed plate 201 and the sliding seat 204, and the automatic spraying of the release agent is achieved by the spraying part 4;

[0055] After the toothbrush handle falls off and the release agent is sprayed, the extrusion cylinder 202 extends to drive the linkage beam 203 to move. The movement of the linkage beam 203 drives the sliding seat 204 to mate with the fixed plate 201 to re-form the casting cavity.

[0056] At the same time, as the fixed plate 201 and the sliding seat 204 squeeze one end of the linkage rod 206 to move, the linkage rod 206 drives the lifting seat 207 at the other end to move upward, so that the spraying part 4 at the lifting seat 207 gradually moves out from between the fixed plate 201 and the sliding seat 204, completing the automatic storage of the spraying part 4;

[0057] At the same time, the movement of the linkage beam 203 can drive the elastic extrusion member 205 to squeeze the pushing portion 3, so that the pushing portion 3 gradually shrinks into the interior of the fixed plate 201, completing the automatic shrinkage of the pushing portion 3;

[0058] By utilizing the power of the extrusion cylinder 202 during its extension and contraction, the opening and closing of the fixed plate 201 and the sliding seat 204, the extension and retraction of the spraying part 4, and the extension and retraction of the pushing part 3 are automatically linked, thereby achieving full utilization of the power of the extrusion cylinder 202.

[0059] See also Figures 2 to 5As shown, sliding grooves are provided on both sides of the fixed plate 201, and the interior of the sliding grooves is slidably connected to the linkage beam 203. The sliding grooves provide guidance and limitation for the sliding of the linkage beam 203, thereby ensuring that when the sliding seat 204 is driven by the linkage beam 203, it can be accurately spliced ​​and closed with the fixed plate 201, thereby improving the stability of the fixed plate 201 and the sliding seat 204 when splicing and separating.

[0060] See also Figures 2 to 4 as well as Figure 6 、 Figure 7 As shown, the pushing portion 3 includes a follower seat 301, an extrusion plate 302, a mounting seat 303, a guide plate 304, a pushing seat 305, a pushing rod 306, a limiting rod 307 and an elastic reset member 308. The follower seat 301 is slidably connected to the interior of the linkage beam 203, and the interior of the follower seat 301 is in contact with the elastic extrusion member 205. The extrusion plate 302 is fixedly connected to the follower seat 301, and the mounting seat 303 is fixedly connected to one side of the fixed plate 201. The guide plates 304 are arranged on the upper and lower surfaces of the mounting seat 303, and the guide plates 304 are arranged on the upper and lower surfaces of the mounting seat 303. The guide plate 304 is slidably connected to the corresponding extrusion plate 302, the pushing seat 305 is slidably arranged inside the mounting seat 303, one end of the pushing rod 306 is fixedly connected to one end of the pushing seat 305, and the other end of the pushing rod 306 is slidably connected to the inside of the fixed plate 201, the limiting rod 307 is slidably arranged inside the pushing seat 305, and the upper and lower ends of the limiting rod 307 are slidably connected to the inside of the extrusion plate 302 and the guide plate 304, and the elastic return member 308 is arranged between the pushing seat 305 and the mounting seat 303;

[0061] When the linkage beam 203 squeezes and pushes the follower seat 301, the follower seat 301 drives the squeezing plate 302 to move together. The movement of the squeezing plate 302 can squeeze the limiting rod 307, so that the limiting rod 307 can move inside the guide plate 304. The movement of the limiting rod 307 can push the pushing seat 305 to move together. The movement of the pushing seat 305 drives the pushing rod 306 to extend out of the interior of the fixed plate 201. The pushing seat 305 also squeezes the elastic reset member 308. The extension of the pushing rod 306 pushes the molded toothbrush handle out of the interior of the fixed plate 201, thereby achieving demoulding of the toothbrush handle.

[0062] When the linkage beam 203 moves in the reverse direction, the elastic extrusion member 205 pushes the follower seat 301, and at the same time, the elastic reset member 308 releases its internal elastic force to push the push seat 305 to move in the reverse direction inside the mounting seat 303. The movement of the push seat 305 drives the limit rod 307 to slide and reset inside the guide plate 304 and the extrusion plate 302, so that the push seat 305 can drive the push rod 306 to retract and enter the interior of the fixed plate 201.

[0063] The push rod 306 is automatically extended and retracted by the linkage between the linkage beam 203 and the push portion 3, thereby achieving an efficient and reliable automatic demoulding operation.

[0064] See also Figure 7 As shown, a rotating sleeve 3071 is rotatably provided at the upper and lower ends of the limit rod 307, and the outer edge of the rotating sleeve 3071 contacts the inner part of the extrusion plate 302 and the guide plate 304. The rotating sleeve 3071 is rotatably provided at both ends of the limit rod 307 to transform the sliding friction at the upper and lower ends of the limit rod 307 into rotating friction, thereby improving the service life of the limit rod 307 and the stability during operation.

[0065] See also Figure 10 、 Figure 12 、 Figure 14 、 Figure 16 and Figure 18 As shown, a first extrusion groove 3021 is opened inside the extrusion plate 302 , and the interior of the first extrusion groove 3021 is divided into an inclined extrusion section and a horizontal static section.

[0066] See also Figure 10 、 Figure 12 、 Figure 14 、 Figure 16 and Figure 18 As shown, a first pushing groove 3041 is provided inside the guide plate 304, and a longitudinal pushing section and a transverse sliding section are provided inside the first pushing groove 3041. The first extrusion groove 3021 and the first pushing groove 3041 can drive the limiting rod 307 to move in conjunction during the movement.

[0067] In the initial state, the limiting rod 307 is located inside the extrusion section of the first extrusion groove 3021 , and the limiting rod 307 is located inside the longitudinal pushing section of the first pushing groove 3041 ;

[0068] Phase 1: The extrusion section of the first extrusion groove 3021 can squeeze the limiting rod 307 to slide longitudinally inside the pushing section of the first pushing groove 3041, so that the limiting rod 307 can drive the pushing seat 305 to move, and the movement of the pushing seat 305 can drive the pushing rod 306 to push out of the interior of the fixed plate 201.

[0069] Second stage: As the extrusion plate 302 continues to slide, the limiting rod 307 enters the sliding section inside the first pushing groove 3041. At this time, the extrusion section at the first extrusion groove 3021 can squeeze the limiting rod 307 to slide laterally in the sliding section inside the first pushing groove 3041. At this time, the limiting rod 307 does not drive the pushing seat 305 to slide and is in a stationary state.

[0070] Stage 3: The extrusion plate 302 continues to slide, and the limiting rod 307 enters the interior of the static section of the first pushing groove 3041. At this time, the limiting rod 307 is still in the interior of the first pushing groove 3041 and is in a static state;

[0071] Stage 4: The extrusion plate 302 can still slide, and the limiting rod 307 is located inside the static section of the first pushing groove 3041. At this time, the limiting rod 307 is still located inside the first pushing groove 3041 and is in a static state.

[0072] See also Figure 9 、 Figure 11 、 Figure 13 、 Figure 15 、 Figure 17 and Figure 19 As shown, a second extrusion groove 3022 is opened inside the extrusion plate 302 , and the interior of the second extrusion groove 3022 is only an inclined extrusion section.

[0073] See also Figure 9 、 Figure 11 、 Figure 13 、 Figure 15 、 Figure 17 and Figure 19 As shown, a second pushing groove 3042 is further defined inside the guide plate 304 , and a longitudinal pushing section, a transverse sliding section, and a longitudinal ejecting section are defined inside the second pushing groove 3042 .

[0074] In the initial state, the limiting rod 307 is located inside the extrusion section of the second extrusion groove 3022 , and the limiting rod 307 is located inside the pushing section of the second pushing groove 3042 ;

[0075] Phase 1: The movement of the extrusion plate 302 can squeeze the second extrusion groove 3022 to cause the limiting rod 307 to move longitudinally in the pushing section inside the second pushing groove 3042, so that the limiting rod 307 can drive the pushing seat 305 to move longitudinally, and the pushing seat 305 can drive the pushing rod 306 to extend;

[0076] At this time, the corresponding limiting rods 307 inside the first extrusion groove 3021 and the first pushing groove 3041 also drive the corresponding pushing seat 305 and the pushing rod 306 to extend out of the fixing plate 201, so that the two sets of pushing rods 306 exert pressure on the toothbrush handle inside the fixing plate 201 to perform the first-stage demoulding, ensuring that the toothbrush handle can be subjected to a huge demoulding pressure at the initial stage of demoulding, ensuring smooth demoulding of the toothbrush handle;

[0077] It should be noted that the pushing section inside the second pushing groove 3042 has a shorter stroke than the pushing section inside the first pushing groove 3041;

[0078] Stage 2: The extrusion plate 302 continues to move, and the limiting rod 307 moves to the inside of the sliding section in the second pushing groove 3042. At this time, the second extrusion groove 3022 squeezes the limiting rod 307 to slide horizontally inside the second pushing groove 3042, so that the corresponding pushing seat 305 is in a stationary state;

[0079] At this time, the corresponding limiting rods 307 inside the first extrusion groove 3021 and the first pushing groove 3041 are not yet inside the sliding section of the first pushing groove 3041, so that the corresponding limiting rods 307 still push the pushing seat 305 to slide, so that the pushing seat 305 drives the corresponding pushing rods 306 to extend;

[0080] At this time, the limiting rods 307 corresponding to the first extrusion groove 3021 and the first pushing groove 3041, and the limiting rods 307 corresponding to the second extrusion groove 3022 and the second pushing groove 3042 are misaligned, so that the corresponding pushing rods 306 are also misaligned. At this time, the pushing rods 306 corresponding to the second extrusion groove 3022 and the second pushing groove 3042 are first separated from the toothbrush handle, realizing the second-stage demoulding of the pushing rod 306 from the toothbrush handle

[0081] Stage 3: The extrusion plate 302 continues to move, the limiting rod 307 moves to the inside of the ejection section of the second pushing groove 3042, and the second extrusion groove 3022 squeezes the limiting rod 307 to slide longitudinally inside the second pushing groove 3042 again;

[0082] It should be noted that the length of the extrusion section and ejection section inside the second pushing groove 3042 is longer than the length of the pushing section of the first pushing groove 3041;

[0083] At this time, the sliding end of the limiting rod 307 corresponding to the first extrusion groove 3021 and the first pushing groove 3041 entering the first pushing groove 3041 is in a stationary state;

[0084] The longitudinal sliding distance of the limiting rod 307 in the second pushing groove 3042 is longer, so that the limiting rod 307 can drive the corresponding pushing rod 306 to contact the separated toothbrush handle again. At the same time, as the limiting rod 307 continues to extend, it can squeeze the toothbrush handle, so that the toothbrush handle is separated from the other pushing rod 306 in a stationary state, thereby completely separating the toothbrush handle and the pushing rod 306.

[0085] Through the linkage between the squeezing plate 302, the guide plate 304 and the limiting rod 307, the pushing rod 306 is completely separated from the toothbrush handle, ensuring that the toothbrush handle falls off.

[0086] See also Figure 8 and Figure 9As shown, the spraying part 4 includes a mounting frame 401, a storage box 402, a delivery pump 403, a spray rod 404, a rotating gear 405, a rack 406 and an electric push rod 407, the mounting frame 401 is fixedly connected to the lifting seat 207, the storage box 402 is fixedly connected to the inside of the mounting frame 401, the delivery pump 403 is fixedly connected to the inside of the mounting frame 401, the input end of the delivery pump 403 is connected to the inside of the storage box 402, the spray rod 404 is rotatably set at the lower end of the mounting frame 401, the rotating gear 405 is fixedly connected to the middle part of the spray rod 404, the rack 406 is slidably connected to the inside of the mounting frame 401, the rack 406 is meshed with the outer edge of the rotating gear 405, the electric push rod 407 is fixedly connected to the inside of the mounting frame 401, and the output end of the electric push rod 407 is fixedly connected to the upper end of the rack 406.

[0087] Start the delivery pump 403 to deliver the paint in the storage tank 402 to the spray rod 404 through the pipeline; control the electric push rod 407 to extend and retract, pushing the rack 406 to slide up and down along the inside of the mounting frame 401. The rack 406 engages with the rotating gear 405, driving the spray rod 404 to rotate around the lower end of the mounting frame 401, thereby adjusting the spray angle of the spray rod 404;

[0088] After the angle adjustment of the spray rod 404 is completed, the demoulding machine sprays the spray evenly on the casting cavity of the fixed plate 201 and the sliding seat 204 through the nozzle at the end of the spray rod 404. The spray rod 404 can be swung at multiple angles through the precise control of the electric push rod 407.

[0089] The transmission structure of the rotating gear 405 and the rack 406 realizes stepless angle adjustment of the spray rod 404, thereby improving the uniformity of spray coverage; the electric push rod 407 and the delivery pump 403 work together to reduce manual intervention and improve production efficiency.

[0090] See also Figure 8 and Figure 9 As shown, the nozzle of the nozzle of the spray rod 404 is set to a flat fan shape, and the fan-shaped nozzle is used to realize linear jet spraying of the release agent on the casting cavity of the fixed plate 201 and the sliding seat 204, making the spraying effect more intuitive and uniform, thereby improving the spraying effect.

[0091] The working principle of the present invention is as follows: when the fixed plate 201 and the sliding seat 204 are in the assembled state, an external feeding device squeezes the molten raw material into the shaping cavity between the fixed plate 201 and the sliding seat 204, so that the raw material is shaped into the shape of a toothbrush handle. Then, the extrusion cylinder 202 contracts to drive the linkage beam 203 to move. The movement of the linkage beam 203 drives the sliding seat 204 to move, so that the fixed plate 201 and the sliding seat 204 are separated, and the formed toothbrush handle is exposed inside the fixed plate 201, thus completing the shaping and exposure of the toothbrush handle.

[0092] At the same time, the movement of the linkage beam 203 can drive the pushing portion 3 to move out of the interior of the fixed plate 201, and push the toothbrush handle inside the fixed plate 201 out of the way, so that the toothbrush handle falls out of the interior of the fixed plate 201 and the sliding seat 204, completing the demoulding of the toothbrush handle;

[0093] At the same time, when the sliding seat 204 is separated from the fixed plate 201, the fixed plate 201 and the sliding seat 204 pull one end of the linkage rod 206 to move, and the linkage rod 206 drives the lifting seat 207 at the other end to move downward, so that the spraying part 4 at the lifting seat 207 gradually enters between the fixed plate 201 and the sliding seat 204. After the toothbrush handle falls, the spraying part 4 sprays the release agent inside the casting cavity between the fixed plate 201 and the sliding seat 204, and the automatic spraying of the release agent is achieved by the spraying part 4;

[0094] After the toothbrush handle falls off and the release agent is sprayed, the extrusion cylinder 202 extends to drive the linkage beam 203 to move. The movement of the linkage beam 203 drives the sliding seat 204 to mate with the fixed plate 201 to re-form the casting cavity.

[0095] At the same time, as the fixed plate 201 and the sliding seat 204 squeeze one end of the linkage rod 206 to move, the linkage rod 206 drives the lifting seat 207 at the other end to move upward, so that the spraying part 4 at the lifting seat 207 gradually moves out from between the fixed plate 201 and the sliding seat 204, completing the automatic storage of the spraying part 4;

[0096] At the same time, the movement of the linkage beam 203 can drive the elastic extrusion member 205 to squeeze the pushing portion 3, so that the pushing portion 3 gradually shrinks into the interior of the fixed plate 201, completing the automatic shrinkage of the pushing portion 3;

[0097] By utilizing the power of the extrusion cylinder 202 during its extension and contraction, the opening and closing of the fixed plate 201 and the sliding seat 204, the extension and retraction of the spraying part 4, and the extension and retraction of the pushing part 3 are automatically linked, thereby achieving full utilization of the power of the extrusion cylinder 202.

[0098] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An injection-molded toothbrush integrated device, characterized in that: It comprises a fixed base (1), an injection molding part (2) is provided on the upper part of the fixed base (1), the injection molding part (2) is connected to the input end of an external feeding device, and the melted raw material is discharged into the interior of the injection molding part (2) through the external feeding device for shaping; A pushing portion (3) is provided on one side of the injection molding portion (2), and the pushing portion (3) can, after the injection molding portion (2) has been shaped, utilize the power generated when the injection molding portion (2) is opened to extrude the product shaped inside the injection molding portion (2) for demoulding; A spraying part (4) is provided on the upper part of the injection molding part (2), and the spraying part (4) can descend into the interior of the injection molding part (2) by utilizing the power when the injection molding part (2) is opened, and spray a mold release agent on the interior of the injection molding part (2); The injection molding part (2) includes a fixed plate (201), an extrusion cylinder (202), a linkage beam (203), a sliding seat (204), an elastic extrusion member (205), a linkage rod (206) and a lifting seat (207), wherein the fixed plate (201) is fixedly connected to the upper portion of the fixed base (1), one end of the extrusion cylinder (202) is fixedly connected to the upper portion of the fixed base (1), one end of the linkage beam (203) is fixedly connected to the output end of the extrusion cylinder (202), and the linkage beam (203) is fixedly connected to the interior of the fixed base (1), and the sliding seat (20 4) fixedly connected to the other end of the linkage beam (203), the elastic extrusion member (205) is arranged inside the linkage beam (203), and one end of the elastic extrusion member (205) is fixedly connected to the inside of the linkage beam (203), the other end of the elastic extrusion member (205) is in contact with the pushing portion (3), and the linkage rod (206) is provided in multiple groups, one end of the linkage rod (206) is respectively rotatably connected to the corresponding fixed plate (201) and the upper part of the sliding seat (204), and the two ends of the lifting seat (207) are respectively rotatably connected to the other end of the corresponding linkage rod (206); The pushing portion (3) comprises a follower seat (301), an extrusion plate (302), a mounting seat (303), a guide plate (304), a pushing seat (305), a pushing rod (306), a limiting rod (307) and an elastic reset member (308); the follower seat (301) is slidably connected to the interior of the linkage beam (203), and the interior of the follower seat (301) is in contact with the elastic extrusion member (205); the extrusion plate (302) is fixedly connected to the follower seat (301); the mounting seat (303) is fixedly connected to one side of the fixed plate (201); the guide plate (304) is provided on the upper and lower surfaces of the mounting seat (303); and The guide plate (304) is slidably connected to the corresponding extrusion plate (302), the pushing seat (305) is slidably arranged inside the mounting seat (303), one end of the pushing rod (306) is fixedly connected to one end of the pushing seat (305), and the other end of the pushing rod (306) is slidably connected to the inside of the fixed plate (201), the limiting rod (307) is slidably arranged inside the pushing seat (305), and the upper and lower ends of the limiting rod (307) are both slidably connected to the inside of the extrusion plate (302) and the guide plate (304), and the elastic reset member (308) is arranged between the pushing seat (305) and the mounting seat (303); A first extrusion groove (3021) is provided inside the extrusion plate (302), and the interior of the first extrusion groove (3021) is divided into an inclined extrusion section and a horizontal static section; A first pushing groove (3041) is provided inside the guide plate (304), and a longitudinal pushing section and a transverse sliding section are provided inside the first pushing groove (3041); A second extrusion groove (3022) is provided inside the extrusion plate (302), and the interior of the second extrusion groove (3022) is only an inclined extrusion section; A second pushing groove (3042) is further provided inside the guide plate (304), and a longitudinal pushing section, a transverse sliding section, and a longitudinal ejecting section are provided inside the second pushing groove (3042).

2. The injection-molded integrated toothbrush device according to claim 1, characterized in that: Sliding grooves are provided on both sides of the fixed plate (201), and the interior of the sliding grooves is slidably connected to the linkage beam (203).

3. The injection-molded integrated toothbrush device according to claim 1, characterized in that: Rotating sleeves (3071) are rotatably provided at the upper and lower ends of the limiting rod (307), and the outer edges of the rotating sleeves (3071) are in contact with the interiors of the extrusion plate (302) and the guide plate (304).

4. The injection-molded integrated toothbrush device according to claim 1, characterized in that: The spraying part (4) includes a mounting frame (401), a storage box (402), a delivery pump (403), a spray rod (404), a rotating gear (405), a rack (406) and an electric push rod (407), the mounting frame (401) is fixedly connected to the lifting seat (207), the storage box (402) is fixedly connected to the inside of the mounting frame (401), the delivery pump (403) is fixedly connected to the inside of the mounting frame (401), the input end of the delivery pump (403) is fixedly connected to the storage box (40 2), the spray rod (404) is rotatably arranged at the lower end of the mounting frame (401), the rotating gear (405) is fixedly connected to the middle of the spray rod (404), the rack (406) is slidably connected to the inside of the mounting frame (401), the rack (406) is meshed with the outer edge of the rotating gear (405), the electric push rod (407) is fixedly connected to the inside of the mounting frame (401), and the output end of the electric push rod (407) is fixedly connected to the upper end of the rack (406).

5. The injection-molded integrated toothbrush device according to claim 4, characterized in that: The nozzle of the nozzle of the spray bar (404) is configured to be a flat fan shape.

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