Injection molding feeding device for injection molding parts
By designing injection molding devices in the production of injection plastic parts, using the dial -dial and sorting institutions to deal with the problem of lumping of water -absorbing plastic particles, solving the problem of difficulty in the feeding rate and material uniformity, and achieve more efficient feed feeding The stable operation of the process and equipment.
Patent Information
- Application Number
- CN202421222315.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the production process of injection molded parts, the easily absorbed plastic particles absorbed water and agglomerated during storage, resulting in the agglomerated material easily blocked the material port position during feeding to the screw conveyor, which in turn affected the feed rate and the normal equipment. run.
Design a injection plastic injection molding device, including spiral feeders and plastic particles inlet feed mechanisms. The feeding mechanism consists of the feed bucket, the material dialing mechanism and the sorting of the feeding mechanism. The material dialing mechanism is dumped and dispersed with the lever through the tooth -shaped scattered plate and cylinder;
By dating the role of the mechanism, effectively disperse and eliminate the blocks in the material, which improves the feed rate; the sorting of the feeding mechanism ensures the uniformity and liquidity of the material, avoiding blockage and device damage.
Smart Images
Figure CN222406884U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of production and processing of injection molded parts, and particularly relates to an injection molding feeding device for injection molded parts. Background Art
[0002] Injection molded parts are made of plastic particles including polymer materials such as polyethylene, polystyrene, polyurethane, etc. Injection molded parts are widely used in the industry. The specific reason is that plastic materials at high temperatures can be processed into various shapes of accessories through methods such as molds. Therefore, based on its high plasticity and low cost, injection molded parts are widely used in the industry.
[0003] For example, the shock absorber air bag on the car, that is, the shock absorber air bag. Its shell is made of plastic. As the shock absorber on the car, the shock absorber air bag has a relatively large demand in the industry.
[0004] In the process of producing shock-absorbing air bags, the first thing to do is to thermoplastically mold the shell components of the air bags. The specific method is to add plastic particles into a screw feeder, and then lift the materials through a bolt feeder to transport them to the heat treatment equipment. Then the high-temperature plastic melt is produced into the shell of the shock-absorbing air bag through a mold.
[0005] However, in the actual production process, plastic particles, especially plastic particles that are easy to absorb water, absorb water and agglomerate during storage. As a result, when feeding the material to the screw conveyor, the agglomerates that absorb water severely can easily block the material port. Since the screw conveyor contains spiral conveying blades, the risk of material breakage at the material port is relatively high.
[0006] This is reflected in the use of a breaking rod to break the material. Once the breaking rod penetrates into the screw barrel of the screw feeder, it is easy to damage the spiral conveying blades. In severe cases, it is easy to directly enter the screw barrel of the screw conveyor, causing large-scale deformation of the spiral conveying blades.
[0007] Therefore, in actual work, the materials can only be preliminarily dispersed and crushed before feeding. However, due to the serious agglomeration of materials that are easy to absorb moisture, it is difficult to disperse the agglomerated materials and they often cannot keep up with the feeding rate of the screw conveyor. Utility Model Content
[0008] Based on the above background, the purpose of the utility model is to provide an injection molding feeding device for injection molded parts.
[0009] In order to achieve the above objectives, the utility model adopts the following technical solutions:
[0010] An injection molding feeding device for injection molded parts comprises a screw feeder, a feeding end of the screw feeder is assembled and connected with a plastic particle feeding mechanism, the plastic particle feeding mechanism comprises a feeding hopper, and a plurality of material spreading mechanisms are assembled and connected on the feeding hopper;
[0011] The material scattering mechanism comprises a toothed scattering plate hinged on the feed hopper, and a plurality of scattering teeth are integrally formed on the toothed scattering plate;
[0012] The material scattering mechanism also includes a cylinder assembled and connected to the outer side wall of the feed hopper, the piston rod of the cylinder is fixedly connected to a lever slidably connected to the feed hopper, and the toothed scattering plate is fixedly connected to a rocking rod slidably connected to the lever;
[0013] The rocking arm is provided with a long rectangular through hole, and the lever passes through the long rectangular through hole;
[0014] The lever is fixedly connected with a pair of push barrier seats on both sides of the long rectangular through hole. During the material dispersing process, the lever moves into the long rectangular through hole, and the inner push barrier seat pushes the toothed dispersing plate to lift the material.
[0015] Preferably, the feed hopper comprises a cylindrical portion, a conical portion is integrally formed at the bottom of the cylindrical portion, and the conical portion is connected to the feed end position of the screw feeder.
[0016] Preferably, an annular inner flange plate is fixedly connected to the inner side wall of the barrel mouth of the cylindrical portion, a plurality of hinge ports are provided on the annular inner flange plate, and the rocking arm is hinged in the hinge ports.
[0017] Preferably, a hinge seat is fixedly connected to the rocking arm, a hinge shaft is fixedly connected to the hinge seat, and the hinge shaft is hinged to the hinge port.
[0018] Preferably, the discharge end of the screw feeder is equipped with a sorting and unloading mechanism.
[0019] Preferably, the sorting and unloading mechanism comprises a sorting screen cylinder, and a screen mesh is fixedly connected to the sorting screen cylinder;
[0020] The sorting screen cylinder is equipped with a vibration motor.
[0021] Preferably, a discharge pipe is integrally formed at the bottom of the sorting screen cylinder, and an annular mounting seat is fixedly connected to the pipe mouth of the discharge pipe.
[0022] Preferably, the discharge end of the screw feeder is connected to a discharge hopper;
[0023] The discharge hopper faces the sorting screen cylinder.
[0024] Preferably, a mounting bracket is fixedly connected to the cylinder barrel of the cylinder, and the mounting bracket is fixedly assembled on the outer side wall of the feed hopper.
[0025] The utility model has the following beneficial effects:
[0026] 1. During the working process, when the material is added to the feed hopper, the cylinder is opened. Under the push of the cylinder, the lever moves inward, and the lever moves in the long rectangular through hole. During the movement, the inner push barrier seat first contacts the rocking bar. During the pushing process, the rocking bar is pushed upward. During this process, the toothed spreading plate-spreading tooth structure fully lifts the material and moves the agglomerated material, and the material is dispersed by the spreading tooth structure. Then the cylinder drives the lever to retract. During the recovery process, the outer push barrier seat contacts the rocking bar and flips inward, further moving the material in this process. With the cooperation of multiple of the above structures, the material can be fully moved, and then the agglomerated material in the material can be fully dispersed. This greatly improves the material feeding rate.
[0027] 2. The materials are sorted and screened through the sorting and unloading mechanism, which can further disperse the lumps that are not fully dispersed and ensure that the materials enter the processing equipment in a uniform state. Specifically, the sorting and unloading mechanism includes a sorting screen cylinder, a screen mesh fixedly connected inside the sorting screen cylinder, and a vibration motor and other structures installed on the sorting screen cylinder to screen the materials again before feeding them into the processing equipment to remove damp and agglomerated materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0029] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;
[0030] Figure 2 This is a structural schematic diagram of the material dispersing mechanism in the embodiment of the utility model;
[0031] Figure 3 This is a schematic diagram of the structure of the toothed spreading plate in the embodiment of the utility model;
[0032] Figure 4 This is a structural schematic diagram of the sorting and unloading mechanism in the embodiment of the utility model;
[0033] Figure 5 For the utility model embodiment Figure 1 Schematic diagram of the plane structure.
[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0037] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0038] Example 1
[0039] like Figure 1-5 As shown, an injection molding feeding device for injection molded parts includes a screw feeder 1. The screw feeder 1 is a conventional bolt feeding mechanism disclosed in the prior art. The main structure includes a screw barrel, a spiral blade shaft installed in the screw barrel, and a motor driving the spiral blade shaft. Materials enter the screw barrel, and are pushed by the spiral blades on the spiral blade shaft to transport the materials from a low place to a high place.
[0040] In order to fully disperse the moisture-absorbing material and ensure that it can enter the screw feeder 1 to avoid blocking the feed port and causing feeding difficulties, the feed end of the screw feeder 1 is equipped with a plastic particle feeding mechanism. The feeding mechanism is used to feed and disperse the material.
[0041] Specifically, the plastic particle feeding mechanism includes a feed hopper 2 (the shape of the feed hopper 2 is: the feed hopper 2 includes a cylindrical portion, the bottom of the cylindrical portion is integrally formed with a conical portion, and the conical portion is connected to the feeding end position of the screw feeder 1), and a plurality of material scattering mechanisms 3 are assembled and connected to the feed hopper 2.
[0042] The material dispersing mechanism 3 is used to disperse the material, especially to disperse the agglomerated material. Specifically, the material dispersing mechanism 3 includes a toothed dispersing plate 31 hinged on the feed hopper 2 (specifically, an annular inner flange plate 21 is fixedly connected to the inner wall of the barrel mouth of the cylindrical portion, and the annular inner flange plate 21 is provided with a plurality of hinge ports, and the rocking arm 32 is hinged in the hinge port). At the same time, the rocking arm 32 is fixedly connected to a hinge seat, and the hinge seat is fixedly connected to a hinge shaft, and the hinge shaft is hinged to the hinge port.
[0043] Meanwhile, a plurality of spreading teeth 311 are integrally formed on the toothed spreading plate 31 ; the spreading teeth 311 are used to facilitate the spreading of the agglomerated materials.
[0044] Specifically, the material scattering mechanism 3 also includes a cylinder 33 assembled and connected to the outer wall of the feed hopper 2 (according to the existing method, a mounting frame is fixedly connected to the cylinder barrel of the cylinder 33, and the mounting frame is fixedly assembled on the outer wall of the feed hopper 2).
[0045] At the same time, the piston rod of the cylinder 33 is fixedly connected to a lever 34 slidably connected to the feed hopper 2, and the toothed spreading plate 31 is fixedly connected to a rocking arm 32 slidably connected to the lever 34; correspondingly, a long rectangular through hole 321 is opened on the rocking arm 32, and the lever 34 passes through the long rectangular through hole 321; the lever 34 is fixedly connected to a pair of pushing barrier seats 341 on both sides of the long rectangular through hole.
[0046] Specifically, when the material is added to the feed hopper 2, the air cylinder 33 is opened, and the lever 34 moves inward under the push of the air cylinder 33, and the lever 34 moves in the long rectangular through hole. During the movement, the inner push barrier seat 341 first contacts the rocking bar 32, and during the pushing process, the rocking bar 32 is pushed upward. In this process, the toothed spreading plate 31-spreading tooth 311 structure fully lifts the material and moves the agglomerated material, and the spreading tooth 311 structure is used to disperse the material.
[0047] Then the cylinder 33 drives the lever 34 to retract. During the recovery process, the outer push barrier seat 341 contacts the push rocking rod 32 and turns inward, further moving the material in the process.
[0048] With the cooperation of multiple structures mentioned above, the material can be fully moved, and the agglomerated material in the material can be fully dispersed, thereby greatly improving the feeding rate of the material.
[0049] Example 2
[0050] like Figure 1-5As shown, in this embodiment, based on the structure of embodiment 1, the discharge end of the above-mentioned screw feeder 1 is equipped with a sorting and unloading mechanism. The material is sorted and screened by the sorting and unloading mechanism, so as to further disperse the lumps that are not fully dispersed, and to ensure that the material enters the processing equipment in a uniform state. Specifically, the sorting and unloading mechanism includes a sorting screen cylinder 41 (the discharge end of the screw feeder 1 is connected to the discharge hopper 11; the discharge hopper 11 faces the sorting screen cylinder 41, and the fed material enters the sorting screen cylinder 41), and the sorting screen cylinder 41 is fixedly connected with a screen 42 (the screen 42 includes a screen frame 421 fixed on the inner side wall of the sorting screen cylinder 41, and a screen 422 fixed in the screen frame 421); the sorting screen cylinder 41 is equipped with a vibration motor 43. Among them, the vibration motor 43 is installed on the outer side wall of the sorting screen cylinder 41 in a conventional manner disclosed in the prior art. The vibrating motor 43 is used to vibrate the sorting screen drum 41 so that the material can be screened through the screen on the sorting screen drum 41, which is a conventional method disclosed in the prior art.
[0051] After screening, the material particles are evenly refined and enter the processing equipment, such as heat treatment equipment.
[0052] The bottom of the above-mentioned sorting screen cylinder 41 is integrally formed with a discharge pipe, and the pipe opening of the discharge pipe is fixedly connected with an annular mounting seat 411. The annular mounting seat 411 is installed to the material opening position of the processing equipment.
[0053] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. An injection molding feeding device for injection molded parts, characterized in that: It comprises a screw feeder, the feeding end of which is equipped with a plastic particle feeding mechanism, the plastic particle feeding mechanism comprises a feeding hopper, and the feeding hopper is equipped with a plurality of material spreading mechanisms; The material scattering mechanism comprises a toothed scattering plate hinged on the feed hopper, and a plurality of scattering teeth are integrally formed on the toothed scattering plate; The material scattering mechanism also includes a cylinder assembled and connected to the outer side wall of the feed hopper, the piston rod of the cylinder is fixedly connected to a lever slidably connected to the feed hopper, and the toothed scattering plate is fixedly connected to a rocking rod slidably connected to the lever; The rocking arm is provided with a long rectangular through hole, and the lever passes through the long rectangular through hole; The shifting rod is fixedly connected with a pair of push-blocking seats on both sides of the long rectangular through hole. During the material scattering process, the shifting rod moves into the long rectangular through hole, and the inner push-blocking seat pushes the toothed scattering plate to lift the material.
2. The injection molding feeding device for injection molded parts according to claim 1, characterized in that: The feed hopper comprises a cylindrical portion, a conical portion is integrally formed at the bottom of the cylindrical portion, and the conical portion is connected to the feeding end position of the screw feeder.
3. The injection molding feeding device for injection molded parts according to claim 2, characterized in that: An annular inner flange plate is fixedly connected to the inner side wall of the cylinder mouth of the cylindrical part, and a plurality of hinge ports are provided on the annular inner flange plate, and the rocking arm is hinged in the hinge ports.
4. The injection molding feeding device for injection molded parts according to claim 3, characterized in that: The rocking arm is fixedly connected with an articulated seat, the articulated seat is fixedly connected with an articulated shaft, and the articulated shaft is articulated on the articulated interface.
5. The injection molding feeding device for injection molded parts according to claim 1, characterized in that: The discharge end of the spiral feeder is equipped with a sorting and unloading mechanism.
6. The injection molding feeding device for injection molded parts according to claim 5, characterized in that: The sorting and unloading mechanism comprises a sorting screen cylinder, in which a screen mesh is fixedly connected; The sorting screen cylinder is equipped with a vibration motor.
7. The injection molding feeding device for injection molded parts according to claim 6, characterized in that: A discharge pipe is integrally formed at the bottom of the sorting screen cylinder, and an annular mounting seat is fixedly connected to the pipe mouth of the discharge pipe.
8. The injection molding feeding device for injection molded parts according to claim 6, characterized in that: The discharge end of the spiral feeder is connected with a discharge hopper; The discharge hopper faces the sorting screen cylinder.
9. The injection molding feeding device for injection molded parts according to claim 1, characterized in that: A mounting frame is fixedly connected to the cylinder barrel of the cylinder, and the mounting frame is fixedly assembled on the outer side wall of the feed hopper.