Raw material mixing device for plastic tray injection molding production

Abstract

The utility model belongs to the technical field of tray production, and discloses a raw material mixing device for plastic tray injection molding production, which comprises a mixing cylinder, a feeding component is arranged in the mixing cylinder, a feeding hopper is mounted at the top of the mixing cylinder, and the upper end of the feeding component extends to the upper end of the mixing cylinder and is fixedly connected with a transmission component. And a plurality of stirring assemblies which are fixedly connected to the outer portion of the feeding assembly and are evenly distributed are movably installed in the mixing cylinder, the middle of the feeding assembly is sleeved with an anti-blocking assembly, and the lower end of the anti-blocking assembly is fixedly connected with the mixing cylinder. Due to the arrangement of the discharge hole, second or third raw materials can quickly enter the first raw materials at different heights under the matching of the material guide opening and the material leakage opening, and then the second or third raw materials at different heights in the middle can be quickly mixed with the first raw materials at the outer side under the action of centrifugal force, so that the uniform mixing efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of pallet production technology, specifically a raw material mixing device for injection molding production of plastic pallets. Background Technology

[0002] Plastics have a wide range of applications. With the sustained and stable growth of my country's economy, industries such as home appliances, automobiles, mobile phones, PCs, medical devices, and lighting appliances have benefited from a favorable external environment and developed rapidly. The development of downstream industries has further boosted the demand for plastics. Plastic products have been used more widely, and we can see plastic products everywhere in our daily lives, such as plastic boxes, plastic bowls, and plastic cups.

[0003] Utility model patent application number 202022448017.7 discloses a raw material mixing device for injection molding. This device utilizes the interaction of springs, connecting ropes, and sleeves to enable the spring sleeve to swing back and forth quickly and efficiently, thereby improving mixing efficiency. However, because the mixing device is a barrel-type container, practical experience shows that during mixing, one raw material is first poured into the barrel, and then another or more raw materials are added according to a pre-prepared ratio. This results in multiple raw materials being layered and piled up in the mixing chamber. The existing mixing device primarily achieves lateral mixing, and secondly, longitudinal mixing is achieved through structural improvements. This actual mixing situation does not match the expected mixing situation, significantly reducing mixing efficiency. Therefore, a new raw material mixing device for injection molding production is needed to address the shortcomings of the existing technology. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a raw material mixing device for plastic pallet injection molding production, which has the advantage of higher mixing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw material mixing device for injection molding of plastic pallets, comprising a mixing cylinder, a feeding component disposed inside the mixing cylinder, a feeding hopper installed on the top of the mixing cylinder, the upper end of the feeding component extending to the upper end of the mixing cylinder and fixedly connected to a transmission component, a plurality of stirring components movably installed inside the mixing cylinder and fixedly connected to the outside of the feeding component and evenly distributed, an anti-blocking component sleeved in the middle of the feeding component, and the lower end of the anti-blocking component fixedly connected to the mixing cylinder;

[0006] The feeding assembly includes a feeding pipe that passes through the middle of the mixing cylinder. The top of the inner cavity of the feeding pipe is provided with a guide port, the lower end of the outer surface of the feeding pipe is provided with a leakage port, and the outer surface of the feeding pipe is provided with a plurality of evenly distributed discharge holes. The two ends of the guide port, the leakage port and the discharge holes are respectively connected to the inside of the feeding pipe and the mixing cylinder.

[0007] Preferably, the inner wall of the discharge hole is smooth, the horizontal plane of the end of the discharge hole near the axis of the feeding pipe is above the horizontal plane of the other end, and the inner diameter of the end of the discharge hole near the axis of the feeding pipe is smaller than the inner diameter of the other end.

[0008] Preferably, the transmission assembly includes a transmission gear movably sleeved on the upper end of the feeding tube, a plurality of evenly distributed protrusions fixedly connected to the outer surface of the feeding tube, the protrusions being movably inserted into the interior of the transmission gear, and a press-fit ring threaded onto the upper end of the feeding tube.

[0009] The press-fit ring is pressed onto the top of the transmission gear. The inner wall of the press-fit ring is a smooth inclined surface. The inner diameter of its upper end is larger than the inner diameter of its lower end. The inner diameter of the lower end of the inner wall of the press-fit ring is the same as the inner diameter of the upper end of the guide port.

[0010] Preferably, the agitation assembly includes an agitation frame fixedly connected to the outer surface of the feeding pipe. The agitation frame has a plurality of uniformly distributed mixing ports inside. The left and right sides of the inner cavity of the mixing port have a first parallel material guiding surface, and the upper and lower sides of the inner cavity of the mixing port have a second parallel material guiding surface.

[0011] Preferably, a plurality of uniformly distributed positioning and drag-reducing balls are movably embedded on the side of the outer surface of the agitator away from the feeding component, and the outer surface of the positioning and drag-reducing balls makes rolling contact with the inner wall of the mixing cylinder.

[0012] Preferably, the anti-clogging component includes a positioning rod that is movably sleeved inside the feeding tube. The lower end of the positioning rod passes through the feeding tube and is fixedly connected to the bottom of the mixing cylinder cavity. A bearing is sleeved between the lower end of the positioning rod and the lower end of the feeding tube. A plurality of material-pulling plates located inside the feeding tube and evenly distributed are fixedly connected to the outer surface of the positioning rod. A gap is left between the side of the material-pulling plate away from the positioning rod and the inner wall of the feeding tube.

[0013] Preferably, the mixing cylinder has a discharge port on its side, the discharge port is connected to the interior of the mixing cylinder, the bottom of the discharge port cavity is flush with the bottom of the mixing cylinder cavity, and the bottom of the feeding assembly is provided with a column.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. Due to the design of the discharge hole, the second or third raw material can quickly enter the first raw material at different heights with the cooperation of the guide port and the discharge port. Then, under the action of centrifugal force, the second or third raw material at different heights in the middle can quickly mix with the first raw material on the outside, thereby effectively improving the mixing efficiency.

[0016] 2. Due to the setting of the stirring frame, the raw materials can be fully stirred by the cooperation of the mixing port, the first guide surface and the second guide surface, thereby improving the mixing efficiency. Moreover, when the end of the stirring frame near the feeding pipe rotates, it can push aside the surrounding raw materials by centrifugal force, so that the raw materials in the discharge hole can flow out smoothly. Furthermore, the positioning and drag-reducing ball bearings can support the stirring component and the feeding component with the cooperation of the inner wall of the mixing cylinder, so that the whole can rotate smoothly.

[0017] 3. Due to the design of the discharge hole, this utility model can ensure that the second or third raw material inside the feeding pipe can flow smoothly into the mixing cylinder with the help of the stirring frame. Moreover, since the inner end of the discharge hole is higher than the outer end, it can promote the outflow of raw materials under the action of centrifugal force and prevent external raw materials from flowing back into the feeding pipe. Furthermore, since the diameter of the inner end of the discharge hole is smaller than the diameter of the outer end, it can ensure that the raw materials entering the discharge hole will not get stuck, thereby effectively reducing the probability of blockage.

[0018] 4. Due to the positioning rod, this utility model can achieve a good stabilizing effect on the feeding pipe with the cooperation of the mixing cylinder and the bearing; moreover, it can fix several material-pulling plates, so that the feeding pipe can rotate relative to the material-pulling plates, thereby ensuring that the material-pulling plates can push the raw material at the inner end of the discharge hole in the feeding pipe when rotating, thereby reducing the probability of the raw material in the feeding pipe becoming blocked. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 3 This is a bottom view of the internal structure of this utility model;

[0022] Figure 4 This is a front view of the stirring component of this utility model;

[0023] Figure 5 This is a schematic diagram of the anti-clogging component of this utility model.

[0024] In the diagram: 1. Mixing cylinder; 2. Feeding assembly; 21. Feeding pipe; 22. Guide port; 23. Discharge port; 24. Discharge hole; 3. Feeding hopper; 4. Transmission assembly; 41. Transmission gear; 42. Protrusion; 43. Press ring; 5. Agitator assembly; 51. Agitator frame; 52. Mixing port; 53. First guide surface; 54. Second guide surface; 55. Positioning and resistance-reducing ball bearings; 6. Anti-clogging assembly; 61. Positioning rod; 62. Feeding plate; 7. Discharge port; 8. Column. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5 As shown, this utility model provides a raw material mixing device for injection molding of plastic pallets, including a mixing cylinder 1, a feeding component 2 is provided inside the mixing cylinder 1, a feeding hopper 3 is installed on the top of the mixing cylinder 1, the upper end of the feeding component 2 extends to the upper end of the mixing cylinder 1 and is fixedly connected to a transmission component 4, a plurality of stirring components 5 are movably installed inside the mixing cylinder 1 and fixedly connected to the outside of the feeding component 2 and evenly distributed, an anti-blocking component 6 is sleeved in the middle of the feeding component 2, and the lower end of the anti-blocking component 6 is fixedly connected to the mixing cylinder 1;

[0027] The feeding assembly 2 includes a feeding pipe 21 that passes through the middle of the mixing cylinder 1. A guide port 22 is provided at the top of the inner cavity of the feeding pipe 21, and a discharge port 23 is provided at the lower end of the outer surface of the feeding pipe 21. A plurality of uniformly distributed discharge holes 24 are provided on the outer surface of the feeding pipe 21. The two ends of the guide port 22, the discharge port 23 and the discharge holes 24 are respectively connected to the interior of the feeding pipe 21 and the mixing cylinder 1. Due to the setting of the discharge holes 24, the second or third raw material can quickly enter the first raw material at different heights with the guide port 22 and the discharge port 23. Then, under the action of centrifugal force, the second or third raw material at different heights in the middle can quickly mix with the first raw material on the outside, thereby effectively improving the mixing efficiency.

[0028] like Figure 3As shown, the inner wall of the discharge hole 24 is smooth. The horizontal plane of the end of the discharge hole 24 near the axis of the feeding pipe 21 is above the horizontal plane of the other end. The inner diameter of the end of the discharge hole 24 near the axis of the feeding pipe 21 is smaller than the inner diameter of the other end. Due to the setting of the discharge hole 24, it can be ensured that the second or third raw material inside the feeding pipe 21 can flow smoothly into the mixing cylinder 1 with the cooperation of the stirring frame 51. Moreover, since the inner end of the discharge hole 24 is higher than the outer end, it can promote the outflow of raw materials under the action of centrifugal force and prevent external raw materials from flowing back into the feeding pipe 21. Furthermore, since the diameter of the inner end of the discharge hole 24 is smaller than the diameter of the outer end, it can be ensured that the raw material entering the discharge hole 24 will not get stuck, thereby effectively reducing the probability of blockage.

[0029] like Figure 3 As shown, the transmission assembly 4 includes a transmission gear 41 movably sleeved on the upper end of the feeding tube 21. A plurality of evenly distributed protrusions 42 are fixedly connected to the outer surface of the feeding tube 21. The protrusions 42 are movably inserted into the interior of the transmission gear 41. A press-fit ring 43 is threaded onto the upper end of the feeding tube 21.

[0030] The press ring 43 is pressed onto the top of the transmission gear 41. The inner wall of the press ring 43 is a smooth inclined surface. The inner diameter of its upper end is larger than the inner diameter of its lower end. The inner diameter of the lower end of the inner wall of the press ring 43 is the same as the inner diameter of the upper end of the guide port 22.

[0031] like Figure 3 and Figure 4 As shown, the stirring assembly 5 includes a stirring frame 51 fixedly connected to the outer surface of the feeding pipe 21. The stirring frame 51 has a plurality of uniformly distributed mixing ports 52 inside. The left and right sides of the inner cavity of the mixing port 52 have a first parallel guiding surface 53, and the upper and lower sides of the inner cavity of the mixing port 52 have a second parallel guiding surface 54.

[0032] like Figure 4 As shown, a plurality of uniformly distributed positioning and drag-reducing balls 55 are movably embedded on the outer surface of the agitator 51 away from the feeding component 2. The outer surface of the positioning and drag-reducing balls 55 rolls in contact with the inner wall of the mixing cylinder 1. Due to the agitator 51, the raw materials can be fully agitated with the cooperation of the mixing port 52, the first guide surface 53 and the second guide surface 54, thereby improving the mixing efficiency. Moreover, when the end of the agitator 51 near the feeding pipe 21 rotates, it can push aside the surrounding raw materials with centrifugal force, so that the raw materials in the discharge hole 24 can flow out smoothly. The positioning and drag-reducing balls 55 can support the agitator 5 and the feeding component 2 with the cooperation of the inner wall of the mixing cylinder 1, so that the whole can rotate smoothly.

[0033] like Figure 5As shown, the anti-clogging component 6 includes a positioning rod 61 movably sleeved inside the feeding tube 21. The lower end of the positioning rod 61 passes through the feeding tube 21 and is fixedly connected to the bottom of the inner cavity of the mixing cylinder 1. A bearing is sleeved between the lower end of the positioning rod 61 and the lower end of the feeding tube 21. Several material-pulling plates 62, located inside the feeding tube 21 and evenly distributed, are fixedly connected to the outer surface of the positioning rod 61. A gap is left between the side of the material-pulling plate 62 away from the positioning rod 61 and the inner wall of the feeding tube 21. Due to the setting of the positioning rod 61, the feeding tube 21 can be stabilized well with the cooperation of the mixing cylinder 1 and the bearing. Moreover, several material-pulling plates 62 can be fixed so that the feeding tube 21 can rotate relative to the material-pulling plates 62, thereby ensuring that the material-pulling plates 62 can pry the raw material inside the discharge hole 24 inside the feeding tube 21 when rotating, thus reducing the probability of blockage of the raw material inside the feeding tube 21.

[0034] like Figure 1 As shown, a discharge port 7 is provided on the side of the mixing cylinder 1. The discharge port 7 is connected to the interior of the mixing cylinder 1. The bottom of the inner cavity of the discharge port 7 is flush with the bottom of the inner cavity of the mixing cylinder 1. A column 8 is provided at the bottom of the feeding component 2.

[0035] Working principle and usage process of this utility model:

[0036] The first raw material is added into the mixing drum 1 through the feeding hopper 3. After the motor is turned on, the feeding pipe 21 is rotated through the transmission gear 41. Due to the rotation of the feeding pipe 21, it can rotate relative to several material feeding plates 62 under the restriction of the positioning rod 61, and at the same time drive several stirring components 5 outside it to rotate synchronously. During this period, the second or third raw material is added through the guide port 22. As the second or third raw material enters, it can enter the main material in the mixing drum 1 at different heights through the discharge port 24. Under the action of the stirring components 5, it is spread to the surroundings by centrifugal force and quickly mixed with the first main material.

[0037] While the stirring frame 51 rotates, in conjunction with the mixing port 52, the first guide surface 53 can apply a radial thrust to the raw material near the inner wall of the mixing cylinder 1, causing it to move inward. Under the action of centrifugal force, it can move laterally back and forth. The second guide surface 54 can apply an upward oblique thrust to the raw material it contacts, allowing the raw material to move upward again after falling due to gravity. This allows the raw material to move up and down back and forth, thereby achieving rapid and thorough mixing of the raw materials.

[0038] When the feeding pipe 21 rotates and the second or third raw material on the inner side flows out of the discharge hole 24, the raw material around the discharge hole 24 can move relative to the feeding plate 62, which helps to reduce the accumulation and blockage of raw material on the inner end of the discharge hole 24.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material mixing device for injection molding of plastic pallets, comprising a mixing cylinder (1), characterized in that: The mixing cylinder (1) is provided with a feeding component (2) inside. A feeding hopper (3) is installed on the top of the mixing cylinder (1). The upper end of the feeding component (2) extends to the upper end of the mixing cylinder (1) and is fixedly connected to a transmission component (4). Several stirring components (5) are movably installed inside the mixing cylinder (1) and fixedly connected to the outside of the feeding component (2) and evenly distributed. An anti-blocking component (6) is sleeved in the middle of the feeding component (2). The lower end of the anti-blocking component (6) is fixedly connected to the mixing cylinder (1). The feeding assembly (2) includes a feeding pipe (21) that passes through the middle of the mixing cylinder (1). The top of the inner cavity of the feeding pipe (21) is provided with a guide port (22). The lower end of the outer surface of the feeding pipe (21) is provided with a discharge port (23). The outer surface of the feeding pipe (21) is provided with a plurality of evenly distributed discharge holes (24). The two ends of the guide port (22), the discharge port (23) and the discharge holes (24) are respectively connected to the interior of the feeding pipe (21) and the mixing cylinder (1).

2. The raw material mixing device for injection molding of plastic pallets according to claim 1, characterized in that: The inner wall of the discharge hole (24) is smooth. The horizontal plane of the end of the discharge hole (24) near the axis of the feeding pipe (21) is above the horizontal plane of the other end. The inner diameter of the end of the discharge hole (24) near the axis of the feeding pipe (21) is smaller than the inner diameter of the other end.

3. The raw material mixing device for injection molding of plastic pallets according to claim 1, characterized in that: The transmission assembly (4) includes a transmission gear (41) movably sleeved on the upper end of the feeding tube (21). The outer surface of the feeding tube (21) is fixedly connected with a plurality of evenly distributed protrusions (42). The protrusions (42) are movably inserted into the interior of the transmission gear (41). The upper end of the feeding tube (21) is threaded with a press-fit ring (43). The press ring (43) is pressed onto the top of the transmission gear (41). The inner wall of the press ring (43) is a smooth inclined surface. The inner diameter of its upper end is larger than the inner diameter of its lower end. The inner diameter of the lower end of the inner wall of the press ring (43) is the same as the inner diameter of the upper end of the guide port (22).

4. The raw material mixing device for injection molding of plastic pallets according to claim 1, characterized in that: The stirring assembly (5) includes a stirring frame (51) fixedly connected to the outer surface of the feeding pipe (21). The stirring frame (51) has a plurality of uniformly distributed mixing ports (52) inside. The mixing ports (52) have parallel first guide surfaces (53) on the left and right sides of their inner cavities, and parallel second guide surfaces (54) on the upper and lower sides of their inner cavities.

5. The raw material mixing device for injection molding of plastic pallets according to claim 4, characterized in that: The agitator (51) has a plurality of uniformly distributed positioning and drag-reducing balls (55) movably embedded on the side of its outer surface away from the feeding assembly (2), and the outer surface of the positioning and drag-reducing balls (55) rolls in contact with the inner wall of the mixing cylinder (1).

6. The raw material mixing device for injection molding of plastic pallets according to claim 1, characterized in that: The anti-clogging component (6) includes a positioning rod (61) that is movably sleeved inside the feeding tube (21). The lower end of the positioning rod (61) passes through the feeding tube (21) and is fixedly connected to the bottom of the inner cavity of the mixing cylinder (1). A bearing is sleeved between the lower end of the positioning rod (61) and the lower end of the feeding tube (21). Several material-pulling plates (62) located inside the feeding tube (21) and evenly distributed are fixedly connected to the outer surface of the positioning rod (61). A gap is left between the side of the material-pulling plate (62) away from the positioning rod (61) and the inner wall of the feeding tube (21).

7. The raw material mixing device for injection molding of plastic pallets according to claim 1, characterized in that: The mixing cylinder (1) has a discharge port (7) on its side, which is connected to the interior of the mixing cylinder (1). The bottom of the discharge port (7) is flush with the bottom of the mixing cylinder (1). The bottom of the feeding assembly (2) is provided with a column (8).

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