Material recovery device in plastic bottle production process
By installing a material recycling device at the feeding port of the plastic bottle production unit, and utilizing the design of a tilting frame and a bracket, the problem of broken material falling in during the plastic bottle production process is solved, achieving automated material separation and efficient recycling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
In the current plastic bottle production process, scraps easily fall into the plastic bottles, resulting in low material recycling efficiency and the need for manual intervention.
A material recycling device is installed at the product discharge port of the plastic bottle production unit. It includes an inclined plastic bottle holder and a rotatable tilting frame. The plastic bottles are tilted by gravity and friction to achieve automatic separation and recycling of materials.
It improves material recycling efficiency, reduces manual intervention, and achieves automated material separation and recycling.
Smart Images
Figure CN224074839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic bottle processing technology, and in particular to a material recycling device in the production process of plastic bottles. Background Technology
[0002] Plastic bottles are plastic containers made from polyester (PET), polyethylene (PE), and polypropylene (PP) masterbatches as raw materials, with the addition of appropriate organic solvents, and after being heated at high temperatures, they are formed by blow molding, extrusion blow molding, or injection molding through plastic molds.
[0003] When plastic bottles are molded using processes such as blow molding, extrusion blow molding, or injection molding, their outer surface usually has flash or protrusions. Therefore, it is necessary to trim these flashes and protrusions during the processing.
[0004] Existing plastic bottle processing equipment typically includes trimming components for immediately finishing the plastic bottles after molding. The resulting debris can be recycled. However, because plastic bottles are hollow, debris often falls into the bottle during trimming. This usually requires manual emptying, which is inconvenient and inefficient for material recycling.
[0005] Therefore, this application proposes a material recycling device for the plastic bottle production process to improve the efficiency of material recycling. Utility Model Content
[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a material recycling device in the production process of plastic bottles, so as to solve the problem that in the prior art, broken materials easily fall into the plastic bottles during the production process.
[0007] To achieve the above and other related objectives, this utility model provides a material recycling device for the production process of plastic bottles, including a material recycling device installed at the product discharge port outlet of the plastic bottle production device. The material recycling device includes an inclined plastic bottle bracket, and bottle mouth support plates are provided on both sides inside the plastic bottle bracket. A material separation groove is provided at the bottom of the bottle mouth support plate for separating materials.
[0008] Both sides of the plastic bottle holder are vertically equipped with roller support frames, and the upper part between the two roller support frames is equipped with a rotatable plastic bottle flipping frame that abuts against the mouth or bottom of the plastic bottle, so that the mouth of the plastic bottle faces downward.
[0009] Preferably, the product discharge port is provided with a downward-sloping slide, and the inclination of the plastic bottle holder is the same as the angle of the slide inside the product discharge port.
[0010] The bottom of the plastic bottle holder is flush with the top of the product discharge port.
[0011] Preferably, the plastic bottle holder is detachably installed at the outlet of the product discharge port.
[0012] Preferably, the bottle mouth support plate is an inverted V-shaped sloping plate, and the inner wall of the bottle mouth support plate can support the bottle mouth of the plastic bottle.
[0013] Preferably, the plastic bottle holder has horizontal mounting grooves on both sides, and the rolling rod support frame can be adjusted in position along the trajectory of the horizontal mounting grooves.
[0014] Preferably, each of the plastic bottle flipping racks is provided with a vertical mounting slot, and the rolling rod support frame can adjust the distance between the bottom of the plastic bottle flipping rack and the top of the plastic bottle holder according to the installation position of the vertical mounting slot.
[0015] Preferably, the plastic bottle flipping frame includes an L-shaped abutment frame, the two ends of the top of the L-shaped abutment frame are respectively hinged to two rolling rod support frames, and a bottle mouth guide groove is provided at the contact point between the L-shaped abutment frame and the plastic bottle.
[0016] Preferably, a hinged bearing is interference-fitted at the junction of the L-shaped contact frame and the rolling rod support frame.
[0017] Preferably, the product discharge port is provided with a discharge port diameter adjustment device to change the inner diameter of the product discharge port.
[0018] Preferably, the discharge port diameter adjustment device includes a discharge port filling block, which extends from the outlet of the product discharge port to the interior of the product discharge port, and the side of the discharge port filling block facing the material recycling device is provided with a variable diameter inclined side.
[0019] The end of the filling block at the discharge port is provided with a mounting plate, which extends to the outside of the product discharge port and connects to the outer surface of the plastic bottle production device.
[0020] The connection between the mounting plate and the plastic bottle production device is detachable.
[0021] As described above, the material recycling device for the plastic bottle production process of this utility model has the following beneficial effects:
[0022] 1. This utility model guides the finished plastic bottles by setting a plastic bottle holder at the outlet of the product feeding port, and uses a plastic bottle flipping frame to abut the mouth or tail of the plastic bottle. When the mouth of the plastic bottle contacts the plastic bottle flipping frame, the mouth of the plastic bottle flips downward under the action of gravity, thereby pouring out the raw material of the plastic bottle. When the tail of the plastic bottle contacts the plastic bottle flipping frame, the tail of the plastic bottle is supported, and under the action of friction and gravity, the mouth of the plastic bottle pours out the material downward, thereby improving the material recycling efficiency.
[0023] 2. This utility model provides a horizontal mounting groove on the side of the plastic bottle holder and a vertical mounting groove on the rolling rod support frame, thereby making the installation position and height of the rolling rod support frame adjustable. This allows for changing the distance between the bottom of the plastic bottle flipping frame and the top of the plastic bottle holder, thus adapting to plastic bottles of different lengths and diameters.
[0024] 3. This utility model sets a filling block inside the product discharge port and sets a variable-diameter inclined side on the side of the filling block, so that the cross-section of the channel inside the product discharge port gradually decreases. As a result, after the plastic bottle falls into the product discharge port, it moves along the cross-section inside the product discharge port and gradually adjusts its direction, so that the head or tail of the plastic bottle contacts the plastic bottle flipping frame.
[0025] Meanwhile, an installation plate is set on the filling block of the discharge port, and the filling block of the discharge port is fixed by bolts and the installation plate, so that the filling block of the discharge port can be disassembled and replaced, and different thicknesses and variable diameter bevels with different angles can be replaced for plastic bottles of different diameters.
[0026] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description
[0027] Figure 1 The diagram shown is an installation schematic of the material recycling device of this utility model.
[0028] Figure 2 The image shown is a side view of the material recycling device of this utility model during installation.
[0029] Figure 3 The diagram shown is a structural schematic of the material recycling device of this utility model.
[0030] Figure 4 The image shown is a side view of the structure of the material recycling device of this utility model.
[0031] Figure 5 The diagram shows the contact between the plastic bottle flipping frame of this utility model and the bottle mouth.
[0032] Figure 6The diagram shows the contact between the plastic bottle flipping frame of this utility model and the flat bottom.
[0033] Figure 7 The image shown is a cross-sectional view of the plastic bottle holder structure of this utility model.
[0034] Figure 8 The diagram shown is a structural schematic of the feed inlet diameter adjustment device of this utility model.
[0035] Component designation explanation:
[0036] 1. Plastic bottle production equipment;
[0037] 2. Product feeding port;
[0038] 3. Material recycling device; 31. Plastic bottle holder; 32. Bottle mouth support plate; 33. Material separation trough; 34. Roller rod support frame; 35. Plastic bottle flipping rack; 351. L-shaped contact frame; 352. Hinge bearing; 353. Bottle mouth guide groove; 36. Horizontal installation groove; 37. Vertical installation groove;
[0039] 4. Feed port diameter adjustment device; 41. Feed port filling block; 42. Variable diameter bevel; 43. Mounting plate. Detailed Implementation
[0040] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0041] Please see Figures 1 to 8 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0042] like Figures 1-3As shown, this utility model provides a material recycling device for the production process of plastic bottles, including a material recycling device 3 installed at the product discharge port 2 outlet of the plastic bottle production device 1. The raw material for the plastic bottle is heated in the plastic bottle production device 1 and then conveyed to a mold for die casting or blow molding via a conveying device. During the cooling and shaping process, the cutters in the plastic bottle production device 1 trim the flash or protrusions of the plastic bottle. Subsequently, the plastic bottle is demolded, and the trimmed material falls together into the product discharge port 2, and is conveyed to the outside of the plastic bottle production device 1 through the product discharge port 2. At this time, the material recycling device 3 separates and recycles the formed plastic bottle and the trimmed material. The aforementioned plastic bottle production device 1 and its method of producing plastic bottles are existing technologies and will not be described in detail in the application document.
[0043] Specifically, the material recycling device 3 includes an inclined plastic bottle holder 31. After the plastic bottle is conveyed out of the product discharge port 2, it continues to slide along the trajectory of the plastic bottle holder 31 under the action of gravity. Bottle mouth support plates 32 are provided on both sides inside the plastic bottle holder 31, and a material separation groove 33 is provided at the bottom of the bottle mouth support plate 32 for separating materials. When the plastic bottle mouth loses its support, the bottle mouth will flip downwards, thus being temporarily supported by the bottle mouth support plate 32 and standing upright between the bottle mouth support plates 32, thereby pouring out any material that has accidentally entered the plastic bottle. The poured-out material is separated from the plastic bottle at the position of the material separation groove 33 and collected by a container placed at the bottom of the plastic bottle holder 31.
[0044] like Figure 3 , Figure 5 and Figure 6 As shown, both sides of the plastic bottle holder 31 are vertically equipped with rotating rod support frames 34. A rotatable plastic bottle flipping frame 35 is located above the two rotating rod support frames 34, contacting the mouth or bottom of the plastic bottle to ensure the mouth of the bottle faces downwards. The specific principle is as follows:
[0045] The diameter of the bottle opening gradually increases from the end, and the opening is located at the axis of the entire bottle. The diameter of the bottle's tail remains essentially constant. Therefore, when the plastic bottle contacts the bottle flipper 35, it will be in one of two states;
[0046] When the bottle neck faces the bottle tilting frame 35, the bottle neck will tilt and insert itself below the bottle tilting frame 35. Under the influence of gravity, the bottle slides down, thus pushing the bottle tilting frame 35 upwards. At this time, under the pressure of the bottle tilting frame 35, the slope of the bottle support 31, and the supporting force of the bottle neck support plate 32, the bottle will temporarily invert, emptying the contents of the bottle.
[0047] When the tail of the plastic bottle faces the bottle tilting frame 35, the upper part of the tail of the plastic bottle will contact the bottle tilting frame 35 and be supported by it. As the plastic bottle slides down, the bottle tilting frame 35 flips upward and applies a reaction force to the tail of the plastic bottle. As the plastic bottle continues to slide down, the distance between the bottom of the bottle tilting frame 35 and the top of the bottle holder 31 increases, and when the mouth of the plastic bottle is above the bottle mouth support plate 32, the mouth of the plastic bottle will lose its support. Under the reaction force, the bottle tilting frame 35 applies a pushing force to the bottom of the plastic bottle, causing the mouth of the plastic bottle to flip downward and temporarily invert, pouring out the material in the plastic bottle.
[0048] like Figure 1 As shown, in some embodiments, the product discharge port 2 of this utility model is provided with a downwardly inclined slide, so that the plastic bottles and trimmed materials falling into the product discharge port 2 can slide out of the product discharge port 2 under the action of gravity. The bottom of the plastic bottle holder 31 is flush with the top of the product discharge port 2, and the inclination of the plastic bottle holder 31 is the same as the angle of the slide inside the product discharge port 2. The plastic bottles and materials sliding out of the product discharge port 2 can smoothly enter the upper part of the plastic bottle holder 31 and continue to slide downward under the action of gravity.
[0049] like Figure 1 and Figure 3 As shown, in some embodiments, the plastic bottle holder 31 of this utility model is detachably installed at the outlet of the product feeding port 2. When producing plastics of different diameters, the plastic bottle holder 31 can be disassembled and replaced to adapt the spacing of the bottle mouth support plates 32 set between the plastic bottle holders 31 to the plastic bottles, allowing the plastic bottles to be flipped smoothly.
[0050] like Figure 3 As shown, in some embodiments, the bottle mouth support plate 32 of this utility model is an inverted V-shaped slanted plate, and the width of the V-shaped opening is adapted to the diameter of the bottle mouth of the plastic bottle. This allows the inner wall of the bottle mouth support plate 32 to support the bottle mouth of the plastic bottle, so that the plastic bottle can be temporarily kept upside down under the support of the plastic bottle flipping frame 35.
[0051] like Figure 3 , Figure 4 and Figure 7 As shown, in some embodiments, the plastic bottle holder 31 of this utility model has horizontal mounting grooves 36 on both sides, and the rolling rod support frame 34 can be adjusted in position along the trajectory of the horizontal mounting grooves 36. Plastic bottles of different lengths have different centers of gravity, and the installation position of the rolling rod support frame 34 can be adjusted to accommodate plastic bottles of different lengths. This allows the plastic bottle flipping frame 35 to flip plastic bottles of different lengths.
[0052] like Figure 3and Figure 4 As shown, in some embodiments, each plastic bottle flipping frame 35 of this invention has a vertical mounting groove 37. The rolling rod support frame 34 can adjust the distance between the bottom of the plastic bottle flipping frame 35 and the top of the plastic bottle holder 31 according to the installation position of the vertical mounting groove 37. The produced plastic bottles vary not only in length but also in diameter. By adjusting the installation height of the rolling rod support frame 34, the plastic bottle flipping frame 35 is always positioned above the bottle mouth and can abut against the upper part of the bottle tail. This allows for the flipping of plastic bottles of different diameters.
[0053] like Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the plastic bottle flipping frame 35 of this utility model includes an L-shaped abutment frame 351. The L-shaped abutment frame 351 has an L-shaped cross-section in a side view, thus having an extended support surface that applies a supporting force to the plastic bottle. The two ends of the top of the L-shaped abutment frame 351 are respectively hinged to two rolling rod support frames 34, so that the plastic bottle flipping frame 35 can rotate around the hinge point with the rolling rod support frame 34 as the pivot point. A bottle mouth guide groove 353 is provided at the contact point between the L-shaped abutment frame 351 and the plastic bottle. The bottle mouth guide groove 353 is a U-shaped inner groove. When the bottle mouth faces the bottle mouth guide groove 353, the mouth of the plastic bottle will be obliquely inserted into the bottom of the bottle mouth guide groove 353, and the upper edge of the plastic bottle will be supported by the bottle mouth guide groove 353. As the plastic bottle slides down, the tilt of the plastic bottle will become steeper until it is temporarily upside down. When the tail of the plastic bottle faces the bottle mouth guide groove 353, the edge of the bottle mouth guide groove 353 will always apply a supporting force to the tail of the plastic bottle, and gradually lift the plastic bottle from the bottom as the plastic slides down, until the plastic bottle is temporarily upside down, and the bottom of the plastic bottle is stuck under the reaction force of the bottle mouth guide groove 353.
[0054] like Figure 5 and Figure 6 As shown, in some embodiments, a hinge bearing 352 is interference-fitted at the junction of the L-shaped contact frame 351 and the rolling rod support frame 34. The hinge bearing 352 can effectively reduce the friction between the L-shaped contact frame 351 and the rolling rod support frame 34, making the L-shaped contact frame 351 rotate more flexibly.
[0055] like Figure 1 and Figure 8 As shown, in some embodiments, the product discharge port 2 of this utility model is provided with a discharge port diameter adjustment device 4 to change the inner diameter of the product discharge port 2, so that the plastic bottle can only contact the plastic bottle flipping frame 35 with its mouth and tail.
[0056] like Figure 8As shown, in some embodiments, the discharge port diameter adjustment device 4 of this utility model includes a discharge port filling block 41, which extends from the outlet of the product discharge port 2 into the interior of the product discharge port 2. A variable-diameter inclined edge 42 is provided on the side of the discharge port filling block 41 facing the material recycling device 3. After the plastic bottle falls into the interior of the product discharge port 2 from the inlet, it slides down under the action of gravity. During the descent, the plastic bottle is guided by the variable-diameter inclined edge 42 and the internal channel of the product discharge port 2 gradually decreases, adjusting its direction until the mouth or tail of the plastic bottle contacts the plastic bottle flipping frame 35.
[0057] A mounting plate 43 is provided at the end of the feed inlet filling block 41. The mounting plate 43 extends to the outside of the product feed inlet 2 and connects to the outer surface of the plastic bottle production device 1. The connection between the mounting plate 43 and the plastic bottle production device 1 is detachable. This allows the feed inlet diameter adjustment device 4 to be replaced and adjusted according to the different diameters of the plastic bottles.
[0058] In summary, the material recycling device in the plastic bottle production process of this utility model guides the finished plastic bottles by setting a plastic bottle bracket 31 at the outlet of the product discharge port 2, and uses a plastic bottle flipping frame 35 to abut the mouth or tail of the plastic bottle. When the mouth of the plastic bottle contacts the plastic bottle flipping frame 35, the mouth of the plastic bottle flips downward under the action of gravity, thereby pouring out the raw material of the plastic bottle. When the tail of the plastic bottle contacts the plastic bottle flipping frame 35, the tail of the plastic bottle is supported, and under the action of friction and gravity, the mouth of the plastic bottle pours out the material downward, thus achieving the effect of improving the material recycling efficiency.
[0059] This utility model provides a horizontal mounting groove 36 on the side of the plastic bottle holder 31 and a vertical mounting groove 37 on the rolling rod support frame 34, thereby making the installation position and height of the rolling rod support frame 34 adjustable. This allows for changing the distance between the bottom of the plastic bottle flipping frame 35 and the top of the plastic bottle holder 31, thus adapting to plastic bottles of different lengths and diameters.
[0060] This utility model provides a filling block 41 inside the product discharge port 2 and a variable-diameter inclined side 42 on the side of the filling block 41, thereby gradually reducing the cross-section of the channel inside the product discharge port 2. As a result, after the plastic bottle falls into the product discharge port 2, it moves along the cross-section inside the product discharge port 2 and gradually adjusts its direction, so that the head or tail of the plastic bottle contacts the plastic bottle flipping frame 35.
[0061] Meanwhile, an installation plate 43 is installed on the discharge port filling block 41. The discharge port filling block 41 is fixed by bolts and the installation plate 43, so that the discharge port filling block 41 can be disassembled and replaced. Different thicknesses and different angles of the variable diameter bevel 42 can be replaced for plastic bottles of different diameters.
[0062] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0063] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A material recovery device in a plastic bottle production process, comprising a material recovery device (3) installed at the outlet of a product discharge port (2) of a plastic bottle production device (1), characterized in that, The material recycling device (3) comprises a plastic bottle bracket (31) arranged obliquely, both sides of the plastic bottle bracket (31) are provided with bottle mouth support plates (32) inside, the bottom of the bottle mouth support plate (32) is provided with a material separation groove (33) for separating materials; Both sides of the plastic bottle bracket (31) are vertically provided with rolling lever support frames (34), the upper part between the two rolling lever support frames (34) is provided with a rotatable plastic bottle turnover frame (35) abutting against the mouth or bottom of the plastic bottle, so that the mouth of the plastic bottle faces downward.
2. The apparatus according to claim 1, wherein: The inside of the product discharge port (2) is provided with an inclined downward slide, the inclination of the plastic bottle bracket (31) is the same as the angle of the slide inside the product discharge port (2); The bottom of the plastic bottle bracket (31) is flush with the top of the product discharge port (2).
3. The apparatus according to claim 2, wherein: The plastic bottle bracket (31) is detachably installed at the outlet of the product discharge port (2).
4. The apparatus according to claim 2, wherein: The bottle mouth support plate (32) is an inverted eight-shaped inclined plate, the inner wall of the bottle mouth support plate (32) can support the bottle mouth of the plastic bottle.
5. The apparatus according to claim 2, wherein: Both sides of the plastic bottle bracket (31) are provided with horizontal installation grooves (36), the rolling lever support frame (34) can be adjusted and installed at the track of the horizontal installation groove (36).
6. The apparatus according to claim 5, wherein: Each plastic bottle turnover frame (35) is provided with a vertical installation groove (37), the rolling lever support frame (34) can adjust the distance between the bottom of the plastic bottle turnover frame (35) and the top of the plastic bottle bracket (31) according to the installation position of the vertical installation groove (37).
7. The apparatus according to claim 6, wherein: The plastic bottle turnover frame (35) comprises an L-shaped abutting frame (351), both ends of the top of the L-shaped abutting frame (351) are hingedly connected with the two rolling lever support frames (34) respectively, and the L-shaped abutting frame (351) is provided with a bottle mouth guide groove (353) at the contact position with the plastic bottle.
8. The apparatus according to claim 7, wherein: The intersection of the L-shaped abutting frame (351) and the rolling lever support frame (34) is connected with a hinged bearing (352) in interference.
9. The apparatus according to claim 1, wherein: The inside of the product discharge port (2) is provided with a discharge port caliber adjusting device (4) for changing the inner diameter section of the product discharge port (2).
10. The apparatus according to claim 9, wherein: The discharge port caliber adjusting device (4) comprises a discharge port filling block (41), the discharge port filling block (41) extends from the outlet of the product discharge port (2) to the inside of the product discharge port (2), and one side of the discharge port filling block (41) facing the material recycling device (3) is provided with a variable-diameter bevel (42); The end of the discharge port filling block (41) is provided with an installation plate (43), the installation plate (43) extends to the outside of the product discharge port (2) and is connected with the outer surface of the plastic bottle production device (1); The connection between the installation plate (43) and the plastic bottle production device (1) is detachable.