Plastic handle accessory machining device

Abstract

The invention relates to the technical field of plastic product processing, discloses a processing device for plastic handle accessories, and solves the problems that a feeding hopper of an existing plastic injection molding machine is short in stirring time and poor in effective degree when materials are stirred and mixed in the descending process, and color mixing of molten plastic hot-melted by the plastic injection molding machine is not uniform. Different raw materials are simultaneously fed through a plurality of feeding pipes and laid on the upper surface of a rotating supporting plate, the different raw materials are laid on the upper surfaces of a plurality of supporting plates to form a ring shape, stacked layer by layer, then thrown into a discharging opening and guided into a hot melting mechanism through a spiral blade, feeding, mixing and discharging of the various raw materials are achieved, the stacked various raw materials are evenly distributed, the mixing effect is good, and the production efficiency is improved. And the used time is short, additional stirring operation is not needed, and limitation of the particle size is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product processing, in particular to a device for processing plastic handle accessories. Background Art

[0002] The processing of plastic handle accessories is to mix various required raw material particles evenly according to the proportion, then heat-melt them into a molten state, and finally inject them into the mold to make a plastic handle; for processing equipment, a common one is a plastic injection molding machine. When the plastic injection molding machine is working, the upper hopper mixes various raw material particles and feeds them to one end of the injection cavity. The rotating screw pushes the raw material particles to the location of the heating mechanism to melt them into a molten state. Subsequently, the screw is piston-driven to inject the molten plastic into the mold to cool and form.

[0003] The existing publication number is "CN215150725U", which discloses "a plastic handle accessory processing device", including a frame frame, a material batching component mounted on the frame, and the plastic handle accessory processing device also includes a screening component matched with the material batching component, and the above structure is used to achieve sufficient mixing of multiple raw material particles;

[0004] However, plastic injection molding machines generally work continuously, and thus the raw material particles are also continuously fed into the hopper so that the hopper can continuously input the mixed raw materials into the injection molding cavity. Therefore, the hopper needs to simultaneously meet the operations of feeding, mixing, and discharging. For this reason, the above-mentioned raw material mixing device is not applicable. The existing raw material mixing device is to set a stirring claw in the hopper so that multiple materials are stirred on the way down. The effective stirring time is short and the effectiveness is poor, which can easily cause uneven color mixing of the molten plastic in the plastic injection molding machine. Summary of the invention

[0005] The purpose of the present invention is to provide a processing device for plastic handle accessories, which solves the problem that the feeding hopper of the existing plastic injection molding machine performs stirring and mixing when the material is descending, the stirring time is short, the effectiveness is poor, and it is easy to cause uneven color mixing of the hot-melt molten plastic of the plastic injection molding machine.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for processing plastic handle accessories, comprising an injection molding machine body, the injection molding machine body having a hopper mechanism for mixing materials, and a hot-melt mechanism for hot-melting mixed raw materials, the hopper mechanism comprising an outer cover, the upper side of the outer cover is provided with a feed pipe for respectively feeding different raw materials into the outer cover, a shaft is rotatably mounted at the center of the inner side of the outer cover, a spiral blade is arranged at the lower end of the shaft and extends into the discharge port at the lower side of the outer cover, an assembly cover body is fixedly mounted on the inner side of the outer cover, a rotating mixing component is arranged on the surface of the assembly cover body, and the mixing component comprises a circumferentially arranged support plate;

[0007] The circumferentially arranged pallet rotates along the shaft axis, and multiple feed pipe outlets are located above the pallet. Multiple feed pipes simultaneously drop different raw materials and spread them on the upper surface of the rotating pallet. Different raw materials are laid in a ring shape on the upper surfaces of multiple pallets and stacked layer by layer. After all the raw materials are stacked, they are thrown into the outlet and introduced into the hot melt mechanism by the spiral blades.

[0008] As a further description of the above technical solution: the assembly cover is cylindrical at the upper section and conical at the lower end, with a circular hole in the center for the shaft rod to pass through, and the mixing assembly is assembled on the cylinder.

[0009] As a further description of the above technical solution: the mixing assembly also includes a rotating ring, and the rotating ring is rotatably assembled on the surface of the assembly cover through a bearing assembled on the lower side.

[0010] As a further description of the above technical solution: a tooth groove is circumferentially provided on the upper surface of the rotating ring, a crown gear is fixedly provided on the surface of the shaft, a rotating shaft is rotatably mounted on the assembly cover, one end of the rotating shaft is meshed with the crown gear through a gear, and the other end is meshed with the tooth groove through a gear.

[0011] As a further description of the above technical solution: the rotating ring includes an outer ring and an inner ring, the bearing and the tooth groove are arranged on the inner ring, the support plate is rotatably assembled between the outer ring and the inner ring through a rotating column, the rotating column is connected to the inner ring through a torsion spring to keep the support plate tilted, the rotating column is fixedly connected to a lever at one end of the outer ring, and the inner wall of the outer cover is provided with a block that contacts the lever.

[0012] As a further description of the above technical solution: the outer side of the tooth grooves on the upper surface of the rotating ring is covered with a mask.

[0013] As a further description of the above technical solution: a first annular material receiving trough is provided above the mixing component, and a plurality of spreading plates are provided circumferentially around the lower outlet of the first material receiving trough. The raw materials input by the feeding pipe are guided to the spreading plates through the first material receiving trough, and then thrown out in a "plane" and sprinkled on the upper surface of the mixing component.

[0014] As a further description of the above technical solution: a plurality of partitions rotating along the shaft axis are provided on the inner side of the first receiving trough, and the partitions are fixedly connected to the outer cover through outer fastening screws.

[0015] As a further description of the above technical solution: the number of partitions corresponds to the number of feed pipes.

[0016] In summary, due to the adoption of the above-mentioned technical scheme, the beneficial effects of the present invention are as follows: different raw materials are dropped simultaneously through multiple feeding pipes and spread on the upper surface of the rotating support plate. Different raw materials are spread in a ring shape on the upper surface of multiple support plates and stacked in layers, and then thrown into the discharge port and introduced into the hot melt mechanism by spiral blades to realize the feeding, mixing and discharging operations of multiple raw materials, and the stacked multiple raw materials are evenly distributed, the mixing effect is good, the time is short, no additional stirring operation is required, and it is not limited by the particle size; then according to the ratio of the multiple raw materials, the spacing between different partitions is appropriately changed, so that the volume ratio of the cavity separated by the first receiving trough by the partition is consistent with the volume ratio of the multiple raw materials, and then the corresponding raw materials are thrown into the corresponding cavity, and the automatic quantification of the multiple raw materials can be realized, further ensuring the accuracy of the raw material ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0019] Figure 3 It is a schematic cross-sectional view of the hopper mechanism structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram;

[0021] Figure 5 It is a schematic diagram of the structure of the hopper mechanism of the present invention from a top view;

[0022] Figure 6 It is a schematic diagram of the bottom structure of the hopper mechanism of the present invention;

[0023] Figure 7 For the present invention Figure 6 A magnified schematic diagram of B;

[0024] Figure 8 It is a schematic diagram of the structure of the mixing component of the present invention.

[0025] In the figure: 10, injection molding machine body; 11, hot melt mechanism; 20, hopper mechanism; 21, outer cover; 211, discharge port; 212, stopper; 213, feed pipe; 22, shaft; 221, spiral blade; 23, first receiving trough; 231, spreading plate; 24, mixing assembly; 241, rotating ring; 2411, bearing; 2412, tooth groove; 2413, shield; 242, support plate; 2421, rotating column; 2422, lever; 243, crown gear; 244, rotating shaft; 25, assembly cover; 26, partition; 261, fastening screw. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0028] Combination Figure 1-Figure 8 A device for processing plastic handle parts includes an injection molding machine body 10, the injection molding machine body 10 has a hopper mechanism 20 for mixing materials, and a hot melt mechanism 11 for hot-melting mixed raw materials. The hopper mechanism 20 injects the mixed raw materials into the hot melt mechanism 11 through a discharge port 211 at the lower side. The hopper mechanism 20 includes an outer cover 21. The upper side of the outer cover 21 is provided with a feed pipe 213 for respectively feeding different raw materials for processing plastic handles into the outer cover 21. The outer end of the feed pipe 213 is connected to a feeder. For a type of raw material, timed and quantitative feeding is realized. Different raw materials fed into the outer cover 21 by multiple feed pipes 213 in the same period , through the control of different feeders, the mixing ratio of different raw materials is controlled. This embodiment mainly aims at real-time and uniform mixing of multiple raw materials put into the outer cover 21. The feeding principle of multiple feeders and the cooperation process between them are not repeated. A shaft 22 is rotatably installed at the center of the inner side of the outer cover 21. A driving motor is provided at the upper end of the shaft 22. A spiral blade 221 is provided at the lower end of the shaft 22 and extends into the discharge port 211 at the lower side of the outer cover 21. An assembly cover body 25 is fixedly installed on the inner side of the outer cover 21. A rotating mixing component 24 is provided on the surface of the assembly cover body 25. The mixing component 24 includes a circumferentially arranged support plate 242;

[0029] The circumferentially arranged support plate 242 rotates along the axis of the shaft 22, and the discharge ports of multiple feed pipes 213 are located above the support plate 242. The multiple feed pipes 213 simultaneously drop different raw materials for processing the plastic handle and spread them on the upper surface of the rotating support plate 242. These different raw materials include granular raw materials that constitute the main part of the plastic handle, powder raw materials that change the color of the plastic handle, etc. The granular raw materials also include various types according to the rigidity requirements, softness and anti-slip properties of the plastic handle, such as polypropylene raw materials with high strength and toughness, polyethylene raw materials with high strength and good wear resistance, and flexible After being discharged from the corresponding feed pipe 213 outlet, these raw materials are laid in a ring shape on the upper surface of multiple support plates 242 and stacked layer by layer. After all the raw materials are stacked, the support plates 242 are turned over to throw the stacked raw materials into the outlet 211, and are introduced into the hot melt mechanism 11 by the spiral blades 221, so as to automatically realize the feeding, mixing and discharging operations of different raw materials in the processing of plastic handles, and the stacked multiple raw materials are evenly distributed, the mixing effect is good, the time is short, no additional stirring operation is required, and it is not limited by the particle size.

[0030] Combination Figure 3 The assembly cover 25 is cylindrical at the upper section and conical at the lower end, with a circular hole in the center for the shaft 22 to pass through. The mixing assembly 24 is assembled on the cylinder. The raw materials mixed by the mixing assembly 24 slide down along the conical slope at a reduced speed when thrown down, so as to maintain the mixed state of the various raw materials used to process the plastic handles, and avoid different raw materials due to physical properties, such as the different diameter granular raw materials and powdered raw materials mentioned above, due to different weights and densities, resulting in different falling speeds, thereby destroying the original uniform mixing state.

[0031] Combination Figure 3-Figure 8 The mixing assembly 24 further includes a rotating ring 241, which is rotatably assembled on the surface of the assembly cover 25 through a bearing 2411 assembled on the lower side;

[0032] A tooth groove 2412 is provided on the upper surface of the rotating ring 241 in the circumferential direction, a crown gear 243 is fixedly provided on the surface of the shaft 22, and a rotating shaft 244 is rotatably installed on the assembly cover 25. One end of the rotating shaft 244 is meshed with the crown gear 243 through a gear, and the other end is meshed with the tooth groove 2412 through a gear. The rotation of the shaft 22 causes the crown gear 243 to drive the rotating shaft 244 to rotate, and further drives the rotating ring 241 to rotate on the surface of the assembly cover 25. The gears at both ends of the rotating shaft 244 can be set with different diameters to change the speed ratio of the shaft 22 and the rotating ring 241.

[0033] It should be noted that the rotation speed of the support plate 242 needs to avoid centrifugal movement of the raw materials on its surface, which will cause the raw materials to pile to the outer edge or even be thrown out, making it inconvenient to achieve the excellent effect of stacking the mixed raw materials in layers of the present application.

[0034] The rotating ring 241 includes an outer ring and an inner ring, a bearing 2411 and a tooth groove 2412 are arranged on the inner ring, and the outer side of the tooth groove 2412 on the upper surface of the rotating ring 241 is covered with a cover 2413 to prevent raw material particles from mistakenly entering the matching path of the rotating shaft 244 and the tooth groove 2412 and affecting their linkage. The support plate 242 is rotatably assembled between the outer ring and the inner ring through a rotating column 2421, and the rotating column 2421 is connected to the inner ring through a torsion spring to keep the support plate 242 tilted. The rotating column 2421 is fixedly connected to a lever 2422 at one end of the outer ring, and a stopper 212 (such as Figure 4 As shown in the figure, when the rotating ring 241 drives the support plate 242 to rotate, the lever 2422 moves in the circumferential direction, and when it contacts the stopper 212, it will be pushed, further causing the corresponding rotating column 2421 to drive the support plate 242 to tilt at a larger angle, so that the stacked and mixed raw materials on the surface of the support plate 242 can be thrown down and fall onto the inclined surface of the assembly cover 25 below.

[0035] Combination Figure 3-Figure 5 A first annular material receiving trough 23 is provided above the mixing component 24, and a plurality of spreading plates 231 are provided around the lower outlet of the first material receiving trough 23. The raw materials input by the feed pipe 213 are guided to the spreading plates 231 through the first material receiving trough 23, and then thrown out in a "flat" shape and sprinkled on the upper surface of the mixing component 24, so as to reduce the single layer thickness of the stacked mixed raw materials and further improve the mixing uniformity;

[0036] A plurality of partitions 26 are provided inside the first receiving trough 23 and are rotatable along the shaft 22 . The partitions 26 are fixedly connected to the outer cover 21 via outer fastening screws 261 .

[0037] The number of partitions 26 corresponds to the number of feed pipes 213. By adjusting the position of the partition 26, the distance between two adjacent partitions 26 can be changed. Furthermore, according to the ratio of various raw materials used to produce plastic handles, the distance between different partitions 26 is appropriately changed so that the volume ratio of the cavity separated by the partition 26 in the first receiving trough 23 is consistent with the ratio of the various raw materials. Thereafter, the corresponding raw materials are added into the corresponding cavity and leaked out through the lower outlet, thereby realizing automatic quantitative synchronous leakage of various raw materials, further ensuring the accuracy of the raw material ratio.

[0038] Working principle: First, according to the volume ratio of the various raw materials used to produce the plastic handle, the position of the partition 26 is appropriately adjusted (for example, if the volume ratio of the four raw materials is 4:3:1:1, the four partitions 26 separate the first receiving trough 23, and the angles formed are 160°:120°:40°:40° respectively), so that the first receiving trough 23 is separated into cavities of different volumes, and the feed pipes 213 corresponding to the input of different raw materials are located above the corresponding volume cavities; then, the multiple feed pipes 213 are started to simultaneously feed different raw materials into the cavities of the first receiving trough 23, and the shaft 22 is simultaneously started to rotate, so that the shaft 22 drives the rotating shaft 244 to rotate. The movable ring 241 rotates, further driving the support plate 242 to rotate circumferentially; first: the various raw materials falling into the first receiving trough 23 are thrown out in a plane through the corresponding spreading plate 231, and then: the rotating support plate 242 catches the various raw materials thrown out, so that the various raw materials are stacked layer by layer in a spiral form on the top, and finally: the lever 2422 on one side of the support plate 242 contacts the block 212 during the circumferential rotation, causing the support plate 242 to rotate at a large angle, so that the stacked and evenly mixed raw materials on the surface slide down, slide to the discharge port 211 through the inclined surface of the assembly cover body 25, and finally guide them into the hot melt mechanism 11 under the action of the spiral blade 221.

[0039] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A processing device for plastic handle accessories, comprising an injection molding machine body (10), wherein the injection molding machine body (10) has a hopper mechanism (20) for mixing materials, and a hot-melt mechanism (11) for hot-melting the mixed raw materials, characterized in that: The hopper mechanism (20) comprises an outer cover (21), the upper side of the outer cover (21) is provided with a feed pipe (213) for respectively feeding different raw materials into the outer cover (21), the inner side of the outer cover (21) is provided with a shaft (22) rotatably mounted at the center, the lower end of the shaft (22) is provided with a spiral blade (221) and extends into the discharge port (211) at the lower side of the outer cover (21), the inner side of the outer cover (21) is fixedly provided with an assembly cover body (25), the surface of the assembly cover body (25) is provided with a rotatable mixing assembly (24), and the mixing assembly (24) comprises a circumferentially arranged support plate (242); The circumferentially arranged support plate (242) rotates along the axis of the shaft (22), and the discharge ports of the plurality of feed pipes (213) are located above the support plate (242). The plurality of feed pipes (213) simultaneously drop different raw materials and spread them on the upper surface of the rotating support plate (242). The different raw materials are spread in a ring shape on the upper surface of the plurality of support plates (242) and are stacked layer by layer. After all the raw materials are stacked, they are thrown into the discharge port (211) and introduced into the hot melt mechanism (11) by the spiral blade (221).

2. A device for processing plastic handle accessories according to claim 1, characterized in that: The assembly cover (25) is cylindrical at the upper section and conical at the lower end, with a circular hole in the center for the shaft (22) to pass through, and the mixing assembly (24) is assembled on the cylinder.

3. A device for processing plastic handle parts according to claim 2, characterized in that: The mixing assembly (24) further comprises a rotating ring (241), and the rotating ring (241) is rotatably assembled on the surface of the assembly cover (25) via a bearing (2411) assembled on the lower side.

4. A device for processing plastic handle parts according to claim 3, characterized in that: A tooth groove (2412) is circumferentially formed on the upper surface of the rotating ring (241), a crown gear (243) is fixedly arranged on the surface of the shaft (22), a rotating shaft (244) is rotatably mounted on the assembly cover (25), one end of the rotating shaft (244) is meshed with the crown gear (243) through a gear, and the other end is meshed with the tooth groove (2412) through a gear.

5. A device for processing plastic handle parts according to claim 4, characterized in that: The rotating ring (241) comprises an outer ring and an inner ring, the bearing (2411) and the tooth groove (2412) are arranged on the inner ring, the support plate (242) is rotatably assembled between the outer ring and the inner ring through a rotating column (2421), the rotating column (2421) is connected to the inner ring through a torsion spring, so that the support plate (242) is kept tilted, the rotating column (2421) is fixedly connected to a lever (2422) at one end of the outer ring, and a stopper (212) in contact with the lever (2422) is provided on the inner wall of the outer cover (21).

6. A device for processing plastic handle parts according to claim 4, characterized in that: The outer side of the tooth groove (2412) on the upper surface of the rotating ring (241) is covered with a mask (2413).

7. A device for processing plastic handle parts according to claim 1, characterized in that: A first annular material receiving trough (23) is provided above the mixing component (24), and a plurality of spreading plates (231) are provided around the lower outlet of the first material receiving trough (23). The raw materials input from the feed pipe (213) are guided to the spreading plates (231) through the first material receiving trough (23) and then thrown out in a "flat" shape to be sprinkled on the upper surface of the mixing component (24).

8. A device for processing plastic handle parts according to claim 7, characterized in that: A plurality of partitions (26) are provided on the inner side of the first receiving trough (23) and are rotatable along the axis of the shaft (22). The partitions (26) are fixedly connected to the outer cover (21) via outer fastening screws (261).

9. A device for processing plastic handle parts according to claim 8, characterized in that: The number of the partitions (26) corresponds to the number of the feed pipes (213).

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