Automatic rapid feeding injection molding machine

Abstract

The utility model relates to an automatic rapid feeding injection molding machine, and belongs to the technical field of injection molding machines. The injection molding device comprises an injection molding body and a feeding barrel arranged on the injection molding body, and further comprises a drying device arranged on the top of the feeding barrel. The drying device comprises a drying cylinder communicating with the feeding cylinder, at least two sets of material guiding assemblies arranged in the drying cylinder at intervals in the height direction and drying assemblies arranged corresponding to the material guiding assemblies, and the adjacent material guiding assemblies are arranged on the two opposite sides of the drying cylinder correspondingly. The raw materials are dried through the drying device before injection molding, and the drying effect is ideal.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding machines, and particularly to an automatic and rapid feeding injection molding machine. Background Art

[0002] An injection molding machine is a mechanical device that injects thermoplastic or thermosetting plastics into a closed mold through heating and high pressure, and forms plastic products with the required shapes after cooling and solidification. It is one of the most widely used processing machines in the plastic processing industry and is widely used in industrial production.

[0003] At present, although the automatic feeding device of the injection molding machine on the market can automatically transport the raw materials of the injection molding machine, during the automatic transportation of the plastic raw materials, due to the hydrophilic groups contained in their macromolecules, the raw materials are prone to absorb moisture in the air during storage and transportation. If not dried, it will affect the quality and performance of the injection products. Summary of the Utility Model

[0004] In order to improve the drying effect of the raw materials, the present application provides an automatic and rapid feeding injection molding machine.

[0005] The automatic and rapid feeding injection molding machine provided by the present application adopts the following technical solutions:

[0006] An automatic and rapid feeding injection molding machine includes an injection molding body and a feeding cylinder arranged on the injection molding body, and further includes a drying device arranged on the top of the feeding cylinder. The drying device includes a drying cylinder communicating with the feeding cylinder, at least two groups of material guiding components arranged at intervals along the height direction in the drying cylinder, and drying components corresponding to the material guiding components. Adjacent material guiding components are respectively arranged on opposite sides of the drying cylinder.

[0007] By adopting the above technical solutions, before the raw materials enter the feeding cylinder, they are first dried by the drying device to reduce the moisture adsorbed by the raw materials. Specifically, under the action of the material guiding components, the raw materials flow alternately along the height direction in the drying cylinder, increasing the flow time of the raw materials in the drying cylinder. The drying components heat and dry the raw materials on the material guiding plates, enabling the raw materials to be dried while being transported, and improving the production efficiency of injection molding.

[0008] Optionally, the material guiding component includes a material guiding plate inclined and fixed on the inner wall of the drying cylinder and a conveying member arranged on the material guiding plate. The conveying member includes a plurality of conveying rollers arranged at intervals and rotatably arranged on the material guiding plate, and a conveyor belt sleeved on the conveying rollers. The drying cylinder is provided with a driving member for driving one of the conveying rollers to rotate.

[0009] By adopting the above technical solution, the structural composition of the material guiding component is disclosed. The raw material enters the inner cavity of the drying cylinder from the feed inlet of the drying cylinder. The raw material first contacts the material guiding component located at the top, and then through the material guiding plates and conveying members of this group, the raw material is obliquely conveyed to the material guiding component with a lower height on the other side, so that the raw material is conveyed in a staggered manner in different directions along the height direction, increasing the time of the raw material in the drying cylinder while ensuring the conveyance of the raw material.

[0010] Optionally, the drying component includes a mounting rack arranged on the drying cylinder and a hot air blower arranged in the mounting rack, and the output port of the hot air blower is arranged at the inclined top end of the material guiding plate.

[0011] By adopting the above technical solution, the structural composition of the drying component is disclosed. When the hot air blower is arranged at the inclined top end of the material guiding plate, when the hot air blower blows out hot air, the conveying efficiency of the raw material can be further improved. The overall structure of the above drying component is simple and convenient to assemble.

[0012] Optionally, the output port of the hot air blower is obliquely arranged, and the inclined direction is parallel to the inclined direction of the diversion plate.

[0013] By adopting the above technical solution, the inclined direction of the output port of the hot air blower is parallel to the inclined direction of the material guiding plate, so that the hot air output by the hot air blower can directly blow the raw material, improving the conveying efficiency of the raw material on the material guiding plate.

[0014] Optionally, a material stirring component for stirring the raw material is further arranged in the drying cylinder. The material stirring component includes a material stirring driving member, a material stirring rod connected to the material stirring driving member, and material stirring pieces arranged at intervals on the material stirring rod.

[0015] By adopting the above technical solution, the structural composition of the material stirring component is disclosed. When the raw material is conveyed on the material guiding plate, the material stirring driving member is started. The material stirring driving member drives the material stirring rod to rotate, and the material stirring pieces on the material stirring rod drive the raw material on the material guiding plate to turn over, avoiding the adhesion of the raw material and increasing the contact area between the raw material and hot air.

[0016] Optionally, the material stirring rod is arranged at the inclined bottom end of the material guiding plate, and the rotation direction of the material stirring rod is the same as the rotation direction of the conveying roller.

[0017] By adopting the above technical solution, the installation direction and rotation direction of the material stirring rod are defined. The material stirring rod is arranged at the inclined bottom end of the material guiding plate and the rotation direction is the same as the rotation direction of the conveying member, so that when the material stirring piece rotates, it can turn over the raw material to the next group of material guiding plates, increasing the dropping height of the raw material.

[0018] Optionally, a preheating chamber is provided at the top opening of the drying cylinder, and a spiral blade is rotatably provided in the preheating chamber. The bottom wall of the preheating chamber communicates with the ventilation holes in the drying cylinder, and the preheating chamber has a feeding port corresponding to the top end of the material guiding plate.

[0019] By adopting the above technical solution, the preheating chamber and the spiral blade in the preheating chamber can preheat the raw materials, increase the initial temperature of the materials, reduce the temperature difference when contacting with the high-temperature drying medium, and help to accelerate the evaporation rate of moisture.

[0020] Optionally, the feeding cylinder is provided with a suction member, and the output port of the suction member communicates with the inside of the feeding cylinder and is inclined upward.

[0021] By adopting the above technical solution, the suction member is arranged to cooperate with the hot air blower to form a flow ventilation duct for hot air between the drying cylinder and the feeding cylinder, optimize the air duct, reduce heat loss, enable the heat energy to act on the materials more effectively, and improve the energy utilization efficiency.

[0022] Optionally, an adjusting assembly is rotatably provided in the feeding cylinder. The adjusting assembly includes two symmetrically arranged adjusting plates and an adjusting driving member for driving the adjusting plates to rotate.

[0023] By adopting the above technical solution, the adjusting assembly can control the output rate of the raw materials entering the feeding cylinder.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By providing the drying device in the present application, drying treatment can be performed before the raw materials are poured into the injection molding body, reducing the moisture carried by the raw materials and improving the quality of the finished product;

[0026] 2. By providing the material distributing assembly in the present application, the material distributing rod is driven to rotate, and the material distributing pieces on the material distributing rod drive the raw materials on the material guiding plate to turn over, avoiding raw material adhesion and increasing the contact area between the raw materials and hot air;

[0027] 3. By providing the preheating chamber in the present application, the raw materials can be preheated, the initial temperature of the materials can be increased, the temperature difference when contacting with the high-temperature drying medium can be reduced, and it helps to accelerate the evaporation rate of moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0029] Figure 2 is the schematic longitudinal sectional view of the embodiment of the present application.

[0030] Figure 3It is a schematic cross-sectional view in the width direction of an embodiment of the present application.

[0031] Figure 4 It is a schematic diagram of the structure of the material shifting assembly of an embodiment of the present application.

[0032] Figure 5 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0033] Explanation of the reference numerals: 1. Injection molding body; 2. Loading cylinder; 21. Adjustment assembly; 211. Adjustment plate; 212. Adjustment drive member; 213. Material discharge gap; 22. Inclined guide plate; 23. Air suction member; 3. Drying device; 31. Drying cylinder; 32. Material guide assembly; 321. Material guide plate; 3211. Conveying mounting groove; 322. Conveying member; 3221. Conveying roller; 3222. Conveying belt; 323. Material guide drive member; 33. Drying assembly; 331. Mounting frame; 332. Hot air blower; 34. Material shifting assembly; 341. Material shifting drive member; 342. Material shifting rod; 343. Material shifting sheet; 3431. Turning groove; 3432. Positioning flange; 35. Preheating chamber; 351. Preheating plate; 3511. Material discharge port; 3512. Ventilation hole; 352. Spiral blade. DETAILED DESCRIPTION

[0034] The following is combined with Figures 1-5 This application is described in further detail.

[0035] The embodiment of the present application discloses an automatic fast-feeding injection molding machine.

[0036] Reference Figure 1 and Figure 2 An automatic fast-feeding injection molding machine includes an injection molding body 1, a feeding cylinder 2 for feeding materials is arranged on the top of the injection molding body 1, and a drying device 3 installed on the top of the feeding cylinder 2. The drying device 3 includes a drying cylinder 31, at least two groups of material guide components 32 arranged at intervals in the height direction, a drying component 33, and a material shifting component 34.

[0037] The upper barrel 2 is connected to the injection molding chamber of the injection molding body 1 and is funnel-shaped as a whole. An adjusting assembly 21 for adjusting the raw materials entering the injection molding chamber is installed in the upper barrel 2. The adjusting assembly 21 includes two symmetrically arranged adjusting plates 211 and an adjusting driving member 212 for driving the two adjusting plates 211 to rotate.

[0038] There is a blanking gap 213 between two adjusting plates 211. The adjusting plates 211 are rotatably installed on the feeding cylinder 2, and the rotation center of the adjusting plates 211 is located on the side where the two adjusting plates 211 are far away from each other. The adjusting driving member 212 is arranged on the outer side wall of the feeding cylinder 2 through a bracket, and its output shaft is connected to the rotation axis of the adjusting plates 211. When the adjusting driving member 212 is started, the two adjusting plates 211 rotate downward as a whole, so that the blanking gap 213 increases.

[0039] The drying cylinder 31 is arranged on the top of the feeding cylinder 2. The drying cylinder 31 and the feeding cylinder 2 are communicated with each other, and the connection part between the two is a sealed connection. The material guiding assembly 32 includes a material guiding plate 321 fixedly inclined in the inner cavity of the drying cylinder 31 and a conveying member 322 arranged on the material guiding plate 321. The width of the material guiding plate 321 is adapted to the inner cavity width of the drying cylinder 31, and the material guiding plate 321 is arranged as a whole in a downward inclined manner.

[0040] Refer to Figure 2 and Figure 3 , the conveying member 322 includes a plurality of conveying rollers 3221 arranged at equal intervals along the inclined direction of the material guiding plate 321 and a conveyor belt 3222 sleeved on the conveying rollers 3221. The material guiding plate 321 has a conveying mounting groove 3211 for rotatably mounting a plurality of conveying rollers 3221. The outer side wall of the feeding cylinder 2 is welded or bolted with a mounting bracket. A material guiding driving member 323 connecting one of the conveying rollers 3221 is fixedly installed on the mounting bracket. The material guiding driving member 323 is a rotating motor.

[0041] In this embodiment, three groups of material guiding assemblies 32 are arranged in the drying cylinder 31. The material guiding plates 321 of adjacent material guiding assemblies 32 are respectively fixed on the opposite side walls inside the drying cylinder, so that the raw materials are conveyed in a staggered manner in the drying cylinder 31, increasing the conveying time of the raw materials in the drying cylinder 31. The inclined bottom end of the material guiding plate 321 at a higher position corresponds to the middle part of the adjacent lower material guiding plate 321. Among them, the inclined bottom end of the material guiding plate 321 at the lowest position corresponds to the blanking gap 213 of the adjusting assembly 21. An inclined guiding plate 22 is fixed on the top of the feeding cylinder 2, and the extending direction of the inclined guiding plate 22 is perpendicular to the length direction of the material guiding plate 321. The inclined guiding plate 22 is an overall V-shaped plate, which can guide the raw materials onto the two adjusting plates 211.

[0042] The drying assembly 33 includes a mounting frame 331 arranged on the drying cylinder 31 and a hot air blower 332 fixed on the mounting frame 331. The drying assembly 33 and the material guiding assembly 32 are in one-to-one correspondence, and each drying assembly 33 is arranged at the inclined top end of the material guiding plate 321 of the material guiding assembly 32. The mounting frame 331 is communicated with the drying cylinder 31, and the output port of the hot air blower 332 is also arranged in an inclined manner, and the inclined angle is the same as the inclined angle of the material guiding plate 321.

[0043] Refer to Figure 2 and Figure 4, the material feeding assembly 34 includes a material feeding driving member 341, a material feeding rod 342 connected to the output shaft of the material feeding driving member 341, and a material feeding piece 343 arranged on the material feeding rod 342. The material feeding assembly 34 is correspondingly arranged with the material guiding assembly 32, and each group of material feeding assemblies 34 is arranged at the inclined bottom end of the material guiding plate 321. Among them, the material feeding driving member 341, the conveying driving member, and the adjusting driving member 212 are all rotary motors in the prior art. The material feeding driving member 341 is fixed to the drying cylinder 31 through a bracket.

[0044] The material feeding rod 342 is located above the inclined bottom end of the material guiding plate 321, and the axial direction of the material feeding rod 342 is parallel to the width direction of the material guiding plate 321. The material feeding pieces 343 are arranged at intervals and staggered along the axial direction of the material feeding rod 342. The end of the material feeding piece 343 has a turning groove 3431 for driving the raw material. The material feeding piece 343 is integrally provided with limiting flanges 3432 on both opposite sides of the turning groove 3431, so as to increase the volume of the material feeding piece 343 for accommodating the raw material.

[0045] When the raw material moves to the bottom end of the material guiding plate 321 under the conveying of the conveyor belt 3222 and hot air, the material feeding piece 343 shovels the raw material into the turning groove 3431, and then continues to rotate, so that the raw material in the turning groove 3431 falls onto the material guiding plate 321 of the next material guiding assembly 32 under the action of its own gravity. During the turning process of the raw material, the contact area and contact time with the hot air are increased, and the drying effect of the raw material is improved.

[0046] An air suction member 23 is further installed on one side of the feeding cylinder 2 inside the adjusting assembly 21 facing the drying cylinder 31. Air suction members 23 are arranged on both opposite sides of the feeding cylinder 2. The air suction member 23 is a suction fan, which can suck the hot air in the drying chamber downward to form a hot air channel.

[0047] Refer to Figure 2 and Figure 5 , in order to further improve the drying effect, the top of the drying cylinder 31 also has a preheating chamber 35. The top of the preheating chamber 35 is the feed inlet, and the bottom is provided with a preheating plate 351 isolated from the drying chamber. A material discharge port 3511 communicating with the drying chamber is opened on one side of the preheating plate 351 close to the inclined top end of the top material guiding plate 321, and a ventilation hole 3512 communicating with the drying chamber is provided on the side far from the material discharge port 3511. Part of the hot air in the drying chamber enters the preheating chamber 35 through the ventilation hole 3512.

[0048] A spiral blade 352 is rotatably installed in the preheating chamber 35. The axis of the bolt blade is arranged along the height direction and is located in the middle of the preheating chamber 35 as a whole. The driving member for driving the bolt blade to rotate is vertically installed outside the bottom of the preheating chamber 35.

[0049] The implementation principle of an automatic and rapid feeding injection molding machine in an embodiment of this application is as follows: Raw materials are poured into the top opening of the drying cylinder 31. The raw materials are first preliminarily heated in the preheating chamber 35. When the raw materials are pushed by the spiral blade 352 to the material discharge port 3511, the raw materials fall into the drying chamber;

[0050] The raw materials fall on the inclined top end of the material guiding plate 321, and then are conveyed along the material guiding plate 321 under the blowing of the conveying member 322 and hot air. When the raw materials move to the inclined bottom end of the material guiding plate 321, the deflector 343 flips the raw materials to a certain height and then drops them onto the next layer of the material guiding plate 321; The above conveying operation is repeated to fully dry the raw materials in the drying chamber; Finally, it enters the feeding cylinder 2, and the conveying amount entering the injection molding machine is adjusted by the adjusting assembly 21.

[0051] The above are all the preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An automatic fast-feeding injection molding machine, comprising an injection molding body (1) and a loading barrel (2) arranged on the injection molding body (1), characterized in that: The drying device (3) is arranged on the top of the upper material cylinder (2), and the drying device (3) includes a drying cylinder (31) connected to the upper material cylinder (2), at least two groups of material guide components (32) arranged in the drying cylinder (31) at intervals along the height direction, and drying components (33) arranged corresponding to the material guide components (32), and adjacent material guide components (32) are respectively arranged on opposite sides of the drying cylinder (31).

2. The automatic fast feeding injection molding machine according to claim 1, characterized in that: The material guide assembly (32) comprises a material guide plate (321) fixed obliquely to the inner wall of the drying cylinder (31) and a conveying member (322) arranged on the material guide plate (321); the conveying member (322) comprises a plurality of conveying rollers (3221) arranged at intervals and rotatably arranged on the material guide plate (321) and a conveying belt (3222) sleeved on the conveying rollers (3221); the drying cylinder (31) is provided with a material guide driving member (323) for driving one of the conveying rollers (3221) to rotate.

3. The automatic fast feeding injection molding machine according to claim 2, characterized in that: The drying component (33) comprises a mounting frame (331) fixed to the drying cylinder (31) and a hot air blower (332) arranged in the mounting frame (331); the output port of the hot air blower (332) is arranged at the inclined top end of the material guide plate (321).

4. The automatic fast feeding injection molding machine according to claim 3, characterized in that: The output port of the hot air blower (332) is arranged tilted, and the tilting direction is parallel to the tilting direction of the material guide plate (321).

5. The automatic fast-feeding injection molding machine according to claim 2, characterized in that: A material shifting assembly (34) for shifting raw materials is also provided in the drying cylinder (31), and the material shifting assembly (34) comprises a material shifting driving member (341), a material shifting rod (342) connected to the material shifting driving member (341), and a material shifting sheet (343) arranged at intervals on the material shifting rod (342).

6. The automatic fast-feeding injection molding machine according to claim 5, characterized in that: The material shifting rod (342) is arranged at the inclined bottom end of the material guide plate (321), and the rotation direction of the material shifting rod (342) is consistent with the rotation direction of the conveying roller (3221).

7. The automatic fast-feeding injection molding machine according to claim 2, characterized in that: A preheating chamber (35) is provided at the top opening of the drying cylinder (31), and a spiral blade (352) is rotatably provided in the preheating chamber (35), the axis of the spiral blade (352) being arranged vertically, the bottom wall of the preheating chamber (35) being connected to the ventilation hole (3512) in the drying cylinder (31), and the preheating chamber (35) has a discharge port (3511) corresponding to the top end of the guide plate (321).

8. The automatic fast-feeding injection molding machine according to claim 1, characterized in that: The loading cylinder (2) is provided with an air suction member (23), and an output port of the air suction member (23) is connected to the inside of the loading cylinder (2) and is inclined upward.

9. The automatic fast-feeding injection molding machine according to claim 1, characterized in that: An adjustment component (21) is rotatably arranged inside the loading barrel (2), and the adjustment component (21) comprises two symmetrically arranged adjustment plates (211) and an adjustment driving member (212) for driving the adjustment plates (211) to rotate.

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