Injection molding machine capable of preventing blanking barrel from being blocked

Abstract

The utility model discloses an injection molding machine capable of preventing a blanking barrel from being blocked. The injection molding machine comprises an injection molding machine body, the blanking barrel, a feeding pipe, a planetary driving mechanism, a rotation shaft, a revolution shaft and a first stirring frame, the blanking barrel is connected with the injection molding machine body, the planetary driving mechanism comprises a driving motor, a transmission assembly, a gear disc, a sun gear and a planetary gear, the sun gear is meshed with the gear disc through the planetary gear, the rotation shaft is connected with the sun gear, a spiral blade is arranged at the bottom of the rotation shaft, and the first stirring frame is connected with the rotation shaft. The planetary driving mechanism is arranged at the top of the blanking barrel, the planetary driving mechanism is connected with the revolution shaft and the rotation shaft, and the first stirring frame is arranged on the revolution shaft, so that the first stirring frame can rotate at the same time in the revolution process so as to comprehensively stir plastic materials; and a spiral blade is arranged at the bottom of the rotation shaft, so that the rotation shaft can push the plastic materials to move downwards in the rotation process, the plastic materials are promoted to smoothly reach the injection molding machine, and stable feeding is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine field especially relates to prevent the injection molding machine of hopper block. BACKGROUND

[0002] Injection molding machine has wide application in plastic product production, and its working process needs to uniformly deliver plastic material to the heating and melting forming device to complete injection molding.

[0003] In the prior art, during the discharging process of the injection molding machine, part of the plastic material is prone to accumulate in the inner wall of the hopper due to factors such as high viscosity, poor flowability or uneven particle size, thereby causing poor flow of the plastic material, and even blockage, which not only affects the production efficiency of the injection molding machine, but also requires the operator to clean the hopper frequently, thereby increasing the maintenance cost of the equipment.

[0004] Therefore, the prior art has defects and needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the material flows smoothly, and provides an injection molding machine capable of preventing the hopper from being blocked.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: an injection molding machine capable of preventing the hopper from being blocked, comprising an injection molding machine body, a hopper, a feeding pipe, a planetary drive mechanism, a rotation axis, a revolution axis and a first stirring frame.

[0007] The hopper is connected with the injection molding machine body, and is used to provide plastic material for injection molding of the injection molding machine body; the feeding pipe is in communication with the sidewall of the hopper to deliver the plastic material into the hopper.

[0008] The planetary drive mechanism comprises a driving motor, a transmission assembly, a gear disc, a sun gear and a plurality of planetary gears; the gear disc is arranged at the top of the hopper; the sun gear is located at the middle of the gear disc; the output shaft of the driving motor is connected with the sun gear through the transmission assembly; the driving motor is used to drive the sun gear to rotate; the plurality of planetary gears are arranged along the circumferential direction of the gear disc, and the sun gear is connected with the gear disc through the planetary gears.

[0009] The rotation axis is connected with the sun gear, and the bottom of the rotation axis is provided with a spiral blade; the spiral blade is used to push the plastic material to the bottom of the hopper when the rotation axis rotates; the revolution axis is connected with the planetary gears, and is used to revolve around the axis of the rotation axis while rotating; the first stirring frame is connected with the revolution axis.

[0010] Adopting the technical scheme, the injection molding machine for preventing the feeding cylinder from being blocked comprises a first stirring frame, a connecting rod and a scraping rod.

[0011] The scraping rod is connected with the revolving shaft through the connecting rod, the scraping rod is arranged in an inclined manner relative to the axis of the revolving shaft, and the axis direction of the scraping rod is arranged in parallel with the side wall of the feeding cylinder.

[0012] Adopting the technical scheme, the injection molding machine for preventing the feeding cylinder from being blocked comprises a first stirring frame, a connecting rod and a scraping rod.

[0013] Adopting the technical scheme, the injection molding machine for preventing the feeding cylinder from being blocked further comprises a second stirring frame, the second stirring frame is arranged on the revolving shaft above the spiral blade, and the second stirring frame is used for stirring the plastic material in the feeding cylinder.

[0014] Adopting the technical scheme, the injection molding machine for preventing the feeding cylinder from being blocked comprises a first stirring frame, a connecting rod and a scraping rod.

[0015] The first bevel gear is connected with the output shaft of the driving motor, the second bevel gear is connected with the sun gear through the transmission shaft, and the first bevel gear is meshingly connected with the second bevel gear.

[0016] Adopting the technical scheme, the injection molding machine for preventing the feeding cylinder from being blocked comprises a first stirring frame, a connecting rod and a scraping rod.

[0017] Adopting the technical scheme, the injection molding machine for preventing the feeding cylinder from being blocked comprises a first stirring frame, a connecting rod and a scraping rod.

[0018] Adopting the technical scheme, the injection molding machine for preventing the feeding cylinder from being blocked comprises a first stirring frame, a connecting rod and a scraping rod.

[0019] Compared with the prior art, the injection molding machine has the following beneficial effects:

[0020] The planet drive mechanism is arranged on the top of the feeding cylinder, and is connected with the revolving shaft and the revolving shaft, respectively, the first stirring frame is arranged on the revolving shaft, so that the first stirring frame can revolve and rotate simultaneously in the revolving process, the plastic material is fully stirred, the dead angle area in the feeding cylinder is avoided, the plastic material in the feeding cylinder is in a flowing state, the spiral blade is arranged on the bottom of the revolving shaft, so that the plastic material is pushed downward in the rotating process of the revolving shaft, the plastic material in the upper layer is continuously conveyed to the lower layer, the plastic material can smoothly enter the injection molding machine, and stable feeding is realized. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Fig. 2 This is a schematic diagram of the internal installation structure of the material discharge cylinder of this utility model;

[0025] Fig. 3 This is a schematic diagram of the installation structure of the self-rotation shaft and the revolution shaft of this utility model. Detailed Implementation

[0026] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0028] The technical scheme of the utility model is further illustrated below in combination with the drawings and through specific embodiments.

[0029] As shown in Figs. 1 to 3 The utility model discloses an injection molding machine of preventing that blanking cylinder is blocked, including injection molding machine body 1, blanking cylinder 2, feeding pipe 3, planetary drive mechanism 4, autorotation shaft 5, revolution axis 6 and first stirring frame 7, blanking cylinder 2 with injection molding machine body 1 is connected, blanking cylinder 2 is used to provide for injection molding machine body 1 with the plastic material for injection molding, feeding pipe 3 with blanking cylinder 2 side wall intercommunication, to deliver plastic material to blanking cylinder 2 inside, through the intercommunication of feeding pipe 3 and blanking cylinder 2 side wall, make plastic material can directly be delivered to blanking cylinder 2 inside under the action of external force air current, improve the delivery efficiency.

[0030] As shown in Fig. 2 And Fig. 3 As shown in, planetary drive mechanism 4 includes drive motor 41, transmission assembly 42, gear disc 43, sun gear 44 and planetary gear 45, gear disc 43 is located at blanking cylinder 2 top, sun gear 44 is located in the middle of gear disc 43, the output shaft of drive motor 41 is connected with sun gear 44 through transmission assembly 42, drive motor 41 is used to drive sun gear 44 rotation, a plurality of planetary gear 45 is along the circumferential direction of gear disc 43 and is arranged, and sun gear 44 is connected with gear disc 43 through planetary gear 45, autorotation shaft 5 is connected with sun gear 44, autorotation shaft 5 bottom is equipped with helical blade 51, helical blade 51 is used to push plastic material towards blanking cylinder 2 bottom delivery when autorotation shaft 5 rotates, revolution axis 6 is connected with planetary gear 45, revolution axis 6 is used to revolve around the axis of autorotation shaft 5 while autorotating, first stirring frame 7 is connected with revolution axis 6. Revolution axis 6 is connected with first stirring frame 7, so that first stirring frame 7 can autorotate in the revolution process, to carry out comprehensive stirring to plastic material, avoid the formation of dead angle area in blanking cylinder 2, make the plastic material in blanking cylinder 2 be in flow state, thereby reduce the risk of blockage caused by plastic material accumulation, autorotation shaft 5 bottom is equipped with helical blade 51, so that autorotation shaft 5 can push plastic material to move downward in the rotation process, to continuously deliver the plastic material in upper layer to lower layer, ensure the fluidity of plastic material, make plastic material can reach injection molding machine smoothly, thereby realize stable feeding, in addition, planetary drive mechanism 4 utilizes the transmission structure between sun gear 44 and planetary gear 45, can realize complex multi-axis motion through smaller drive motor 41, and then improve transmission efficiency and the compactness of equipment, effectively save installation space.

[0031] As shown in Fig. 3As shown, further, the first stirring frame 7 includes a connecting rod 71 and a scraping rod 72, the scraping rod 72 is connected with the revolution shaft 6 through the connecting rod 71, the scraping rod 72 is arranged obliquely relative to the axis of the revolution shaft 6, and the axis direction of the scraping rod 72 is arranged in parallel with the side wall of the material dropping cylinder 2. In this way, the scraping rod 72 can be close to the inner wall of the material dropping cylinder 2 during stirring, and the plastic material adhered to the inner wall can be scraped off, so that the plastic material is prevented from adhering to the cylinder wall.

[0032] Further, a gap is formed between the scraping rod 72 and the inner side wall of the material dropping cylinder 2, and the size of the gap is 1-4 mm. In the embodiment, the size of the gap is 2 mm. In this way, the abrasion of the scraping rod 72 caused by the direct contact with the inner wall of the material dropping cylinder 2 can be avoided, and the plastic material adhered to the inner wall can be removed by the scraping rod 72, so that the flowability of the material is improved.

[0033] As shown in the figure, Fig. 3 Further, a second stirring frame 8 is arranged on the revolution shaft 5 above the spiral blade 51, and the second stirring frame 8 is used for stirring the plastic material in the material dropping cylinder 2. The second stirring frame 8 is arranged above the spiral blade 51, so that the plastic material can be fully stirred and loosened before entering the spiral blade 51, the caking or accumulation of the plastic material is avoided, the flowability of the plastic material is improved, and the phenomenon of blockage caused by the excessive concentration of the plastic material is avoided.

[0034] As shown in the figure, Fig. 2 Further, the transmission assembly 42 includes a first bevel gear 421, a second bevel gear 422 and a transmission shaft 423. The first bevel gear 421 is connected with the output shaft of the driving motor 41, the second bevel gear 422 is connected with the sun gear 44 through the transmission shaft 423, and the first bevel gear 421 is meshingly connected with the second bevel gear 422. In this way, the transmission direction of the power output can be changed, the transmission structure can be installed in the narrow layout space in the material dropping cylinder 2, and the overall structure is more compact.

[0035] As shown in the figure, Fig. 2 Further, the bottom of the material dropping cylinder 2 is in a conical structure, and the included angle between the side wall of the bottom of the material dropping cylinder 2 and the central axis is 40-50°. In the embodiment, the included angle between the side wall of the bottom of the material dropping cylinder 2 and the central axis is 45°. In this way, the plastic material can be naturally slid to the bottom of the material dropping cylinder 2 under the action of gravity, the plastic material can be slid along the conical wall surface to the discharge port, and the smooth conveying of the plastic material is realized.

[0036] As shown in the figure, Fig. 3As shown, further, the number of the planetary gears 45 is three groups. The three groups of planetary gears 45 are evenly distributed on the gear disc 43, and the angle between two adjacent groups of planetary gears 45 is 120°. In this way, the power of the sun gear 44 can be evenly transmitted to each planetary gear 45, and the vibration problem caused by uneven force can be avoided.

[0037] Further, the inner wall of the blanking cylinder 2 is coated with a polytetrafluoroethylene coating. The polytetrafluoroethylene has a very low friction coefficient. Coating the inner wall of the blanking cylinder 2 with the polytetrafluoroethylene can reduce the friction between the plastic material and the inner wall, so that the plastic material can smoothly slide in the blanking cylinder 2, thereby avoiding the blockage caused by the accumulation of the plastic material.

[0038] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An injection molding machine for preventing a material blocking of a material cylinder, characterized in that, The injection molding machine body, the blanking cylinder, the feeding pipe, the planetary drive mechanism, the rotation axis, the revolution axis and the first stirring frame are included. The blanking cylinder is connected with the injection molding machine body, and is used for providing plastic material for injection molding for the injection molding machine body. The planetary drive mechanism includes a driving motor, a transmission assembly, a gear disc, a sun gear and a plurality of planetary gears. The sun gear is located in the middle of the gear disc, and the output shaft of the driving motor is connected with the sun gear through the transmission assembly.

2. The injection molding machine to prevent the blocking of the feed cylinder according to claim 1, wherein, The driving motor is used for driving the sun gear to rotate. The rotation axis is connected with the sun gear, and the bottom of the rotation axis is provided with a spiral blade.

3. The injection molding machine of claim 2, wherein, The spiral blade is used for pushing the plastic material to the bottom of the blanking cylinder when the rotation axis rotates.

4. The injection molding machine of claim 1, wherein, The revolution axis is connected with the planetary gears, and is used for revolving around the axis of the rotation axis while rotating.

5. The injection molding machine of claim 1, wherein, The first stirring frame includes a connecting rod and a scraping rod. The scraping rod is connected with the revolution axis through the connecting rod.

6. The injection molding machine of claim 1, wherein, The axis of the scraping rod is parallel to the side wall of the blanking cylinder.

7. The injection molding machine of claim 1, wherein, The gap between the scraping rod and the inner side wall of the blanking cylinder is 1-4mm.

8. The injection molding machine of claim 1, wherein, A second stirring frame is further included. The second stirring frame is arranged on the rotation axis above the spiral blade. The second stirring frame is used for stirring the plastic material in the blanking cylinder. The transmission assembly includes a first bevel gear, a second bevel gear and a transmission shaft. The first bevel gear is connected with the output shaft of the driving motor. The second bevel gear is connected with the sun gear through the transmission shaft. The first bevel gear is connected with the second bevel gear. The bottom of the blanking cylinder is in a conical structure. The angle between the side wall of the bottom of the blanking cylinder and the central axis is 40-50°. The number of the planetary gears is three groups. The inner wall of the blanking cylinder is coated with a polytetrafluoroethylene coating.

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