A plastic float processing device with good stability

Abstract

The present invention relates to the technical field of plastic float processing, and in particular to a plastic float processing device with good stability, comprising a shell, a filter element arranged in the shell, and a filter plate coaxially arranged in the filter element; the filter plate can slide axially between a first filter position and a second filter position under the drive of a linear drive; a scraping module capable of cleaning the filter plate located at the second filter position is also provided outside the filter element; a conduction module is arranged on the shell to introduce raw materials into the filter element; the present invention can not only continuously filter molten plastic but also automatically remove filtered foreign matter.

Description

Technical Field

[0001] The invention relates to the technical field of plastic float processing, in particular to a plastic float processing device with good stability. Background Art

[0002] A sphere that can float to the surface of the water in time after falling into the water is called a float, and most floats are made of plastic blow molding or injection molding, so they are also called plastic floats. When processing plastic floats, injection molding is a common method.

[0003] When performing injection molding, an injection molding machine is generally used. When using it, the raw materials only need to be added into the hopper of the injection molding machine to automatically complete the injection molding process. In order to ensure the stability of the injection molding, the injection molding raw materials are generally screened. Once there are too large particles, it is easy to cause the phenomenon of not being completely melted, and then not being completely melted into the plastic float. When there are many large particles, it will affect the injection molding quality of the plastic float. For example, the announcement number: CN219256282U discloses a plastic float processing device with good stability. The patent adopts a filter cartridge to filter large particles and cooperates with a lifting block to eject foreign objects to achieve filtering of large particles of foreign matter. Although the filtering effect can be achieved;

[0004] However, in actual use, during the process of pushing out foreign objects through the lifting block, the patent cannot continue to filter the molten raw material and there is no corresponding foreign object collection equipment, that is, foreign objects need to be clamped, which requires the equipment to enter a shutdown state, and careless operation during the process of removing foreign objects may cause other foreign objects to fall into the filter cartridge again, further causing contamination of the molten raw material; the continuity of filtration cannot be guaranteed, and the filtration efficiency is low. Summary of the invention

[0005] In view of the above problems, a plastic float processing device with good stability is provided. By proposing a device that can automatically filter and scrape foreign matter in particles during the continuous melting of raw materials, the technical problems that the hopper of existing injection molding equipment cannot filter continuously and the filtering effect is low, which easily leads to raw material contamination, are solved.

[0006] In order to solve the problems of the prior art, the present invention provides a plastic float processing device with good stability, comprising a shell, a filter element arranged in the shell, and a filter plate coaxially arranged in the filter element; the filter plate can slide axially between a first filter position and a second filter position under the drive of a linear drive; a scraping module capable of cleaning the filter plate located at the second filter position is also provided outside the filter element; a conduction module is arranged on the shell to introduce raw materials into the filter element.

[0007] Preferably, the filter element includes an outer filter chamber and an inner filter chamber coaxially arranged in the outer filter chamber; an annular gap is formed between the outer filter chamber and the inner filter chamber, and the annular gap constitutes a second filter chamber; the filter plate is divided into a first filter plate and a second filter plate; the first filter plate and the second filter plate are axially slidably arranged in the first filter chamber and the second filter chamber respectively under the drive of a linear drive.

[0008] Preferably, a first material collection box and a second material collection box are coaxially arranged outside the inner filter bin and the outer filter bin, respectively. The first material collection box and the second material collection box are arranged close to the top of the inner filter bin and the outer filter bin, and the edges of the first material collection box and the second material collection box are also provided with a lead-out portion connected to the interior of the first material collection box and the second material collection box.

[0009] Preferably, the first filter plate is arranged in a funnel shape and the conical end of the first filter plate is arranged vertically upward; a first guide rod fixedly connected to the driving end of the linear drive is also coaxially arranged at the conical end of the first filter plate.

[0010] Preferably, the second filter plate is an arc-shaped frame and two sets of second guide rods arranged opposite to each other are vertically arranged on the upper surface of the arc-shaped frame. The rod parts of the second guide rods pass through the first material collecting box and are slidably matched with the first material collecting box.

[0011] Preferably, the scraping module comprises a first scraping unit and a second scraping unit capable of scraping the first filter plate and the second filter plate respectively.

[0012] Preferably, the first scraper unit comprises a first scraper capable of circumferentially rotating along the axis of the first filter plate, and the first scraper is driven to rotate by a rotary driver disposed on the outside of the inner filter bin via a fixed frame.

[0013] Preferably, the second scraper unit includes a second scraper capable of circumferentially rotating along the axis of the second filter plate; the second scraper is rotatably arranged outside the outer filter bin via a rotating seat, and the rotating seat is driven to rotate by a second servo motor arranged at one side of the outer filter bin.

[0014] Preferably, the linear drive includes a first electric push rod and a second electric push rod, the first electric push rod and the second electric push rod are both fixedly arranged outside the shell in a vertical state and the output shaft passes through the shell and is arranged toward the inside of the shell, the driving end of the first electric push rod is fixedly connected to the first guide rod, and the driving end of the second electric push rod is fixedly connected to the second guide rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention achieves the effect of how to synchronously filter the molten raw materials through two chambers by coaxially arranged inner and outer filter chambers, and at the same time, cooperates with the first filter plate and the second filter plate arranged in the inner and outer filter chambers and the linear drive used to drive the first filter plate and the second filter plate to move axially, thereby achieving the effect of how to alternately filter foreign matter in the two chambers, and avoids the technical problem of traditional filtering equipment that cannot normally filter the molten raw materials when filtering foreign matter; the scraping module achieves the effect of how to automatically scrape away foreign matter filtered out by the first filter plate and the second filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The front view of a plastic float processing device with good stability.

[0018] Figure 2 The figure is a side view of a plastic float processing device with good stability, in which the housing, linear drive and conduction module are removed.

[0019] Figure 3 yes Figure 2 Cross-sectional view at AA.

[0020] Figure 4 yes Figure 3 A partial enlarged view of point B.

[0021] Figure 5 The top view is a plastic float processing device with good stability without the housing, linear drive and conduction module.

[0022] Figure 6 yes Figure 5 Stereoscopic cross-sectional view of the CC section.

[0023] Figure 7 yes Figure 6 A partial enlarged view of point D.

[0024] Figure 8 The present invention is a three-dimensional diagram of the partial structure of the first filter plate, the filter element and the scraper module in a plastic float processing device with good stability.

[0025] The numbers in the figure are:

[0026] 1- housing;

[0027] 2-filter element; 21-inner filter chamber; 22-outer filter chamber; 221-first material collection box; 222-second material collection box; 223-exporting part;

[0028] 3-first filter plate; 31-first guide rod;

[0029] 4-second filter plate; 41-second guide rod;

[0030] 51-first electric push rod; 52-second electric push rod;

[0031] 6-scraping module; 61-first scraping unit; 611-first scraper; 612-fixed frame; 613-rotating driver; 614-first servo motor; 615-first driving gear; 616-driven gear; 62-second scraping unit; 621-second scraper; 622-rotating seat; 623-second servo motor; 624-first mounting frame; 625-second driving gear; 626-gear ring;

[0032] 7-Conduction module. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] See also Figures 1 to 8 As shown: A plastic float processing device with good stability, including a shell 1, a filter element 2 arranged in the shell 1 and a filter plate coaxially arranged in the filter element 2; the filter plate can slide axially between a first filter position and a second filter position under the drive of a linear drive; a scraper module 6 capable of cleaning the filter plate located in the second filter position is also provided outside the filter element 2; a conduction module 7 is arranged on the shell 1 to introduce raw materials into the filter element 2.

[0035] The first filter position is located at the bottom of the filter element 2, and the second filter position is located at the top of the filter element 2; when the filter plate slides axially between the first filter position and the second filter position, it represents the process of the filter plate moving axially upward from the bottom of the filter element 2 to filter foreign matter;

[0036] When it is necessary to filter the raw material in a molten state, firstly, the external raw material or the molten raw material is introduced into the filter element 2. At this time, the filter plate is initially located at the first filtering position, that is, at the bottom of the filter element 2. Since the raw material in a molten state is set in a liquid state, the liquid raw material without foreign matter will flow through the filter element 2 into the shell 1 at this time, and the molten raw material will be introduced into the mold through the shell 1. The shell 1 is a prior art and will not be described here. The molten raw material with foreign matter or the liquid raw material that cannot be melted and the large particle raw material and other foreign matter will be left in the filter element 2 under the filtration of the filter element 2. When it is necessary to export the foreign matter, it is only necessary to drive the linear drive to drive the filter plate to move axially from the first filtering position to the second filtering position. At this time, the foreign matter left in the filter element 2 will be filtered out of the filter element 2 under the action of the filter plate. Finally, it is only necessary to drive the scraper module 6 to scrape off the foreign matter filtered out by the filter plate.

[0037] See also Figure 6 As shown: the filter element 2 includes an outer filter chamber 22 and an inner filter chamber 21 coaxially arranged in the outer filter chamber 22; an annular gap is formed between the outer filter chamber 22 and the inner filter chamber 21, and the annular gap constitutes a second filter chamber; the filter plate is divided into a first filter plate 3 and a second filter plate 4; the first filter plate 3 and the second filter plate 4 are axially slidably arranged in the first filter chamber and the second filter chamber respectively under the drive of the linear drive.

[0038] The first filter compartment is inside the inner filter compartment 21;

[0039] When the molten raw material is filtered through the first filter chamber and the second filter chamber respectively, in order to ensure the continuity of filtering, the first filter plate 3 and the second filter plate 4 arranged in the first filter chamber and the second filter chamber are operated alternately; that is, when the first filter plate 3 in the first filter chamber is driven by the linear drive to filter foreign matter, the second filter plate 4 is in a non-working setting at this time, and the second filter plate 4 will not be operated until the first filter plate 3 falls back to the first filtering position, thereby solving the technical problem that the continuity of filtering cannot be ensured due to the inability to continue to introduce the molten raw material into the first filter chamber during the process of filtering foreign matter in the first filter chamber through the first filter plate 3, and the molten raw material must be introduced after the first filter plate 3 falls back to the first filtering position; the conduction module 7 is used to introduce the molten raw material into the outer filter chamber 22 and the inner filter chamber 21 respectively, so as to continuously supply the material to another filter chamber when filtering in a certain filter chamber, thereby ensuring the continuity of filtering.

[0040] See also Figure 6 As shown: the first collecting box 221 and the second collecting box 222 are coaxially arranged outside the inner filter bin 21 and the outer filter bin 22, respectively. The first collecting box 221 and the second collecting box 222 are both arranged close to the top of the inner filter bin 21 and the outer filter bin 22, and the edges of the first collecting box 221 and the second collecting box 222 are also provided with an outlet portion 223 that is connected to the interior of the first collecting box 221 and the second collecting box 222.

[0041] The first collecting box 221 and the second collecting box 222 are both hollow annular shells 1 with an open top; the collecting boxes are used to store foreign matter filtered out by the filter plate and export them through the outlet portion 223. Furthermore, the internal conductive plane of the collecting box is inclined toward the outlet portion 223, thereby ensuring that the foreign matter stored in the first collecting box 221 and the second collecting box 222 can automatically slide to the outlet portion 223.

[0042] See also Figure 8As shown: the first filter plate 3 is arranged in a funnel shape and the conical end of the first filter plate 3 is arranged vertically upward; a first guide rod 31 fixedly connected to the driving end of the linear drive is also coaxially arranged at the conical end of the first filter plate 3.

[0043] The conical end of the first filter plate 3 is arranged vertically upward, so as to guide the foreign matter in the first filter chamber by using its arc-shaped inclined surface when filtering the foreign matter in the first filter chamber through the first filter plate 3, so that the foreign matter will slide toward the edge of the arc-shaped inclined surface under its own weight when filtering and guiding the foreign matter in the first filter chamber through the first filter plate 3; thereby, when the first filter plate 3 is pulled to the second filtering position, the foreign matter located at the edge of the first filter plate 3 will automatically fall into the first collecting box 221, and cooperate with the first collecting box 221 to collect the foreign matter; the first guide rod 31 is used to be fixedly connected to the driving end of the linear drive, so as to drive the first filter plate 3 to slide longitudinally.

[0044] See also Figure 3 As shown, the second filter plate 4 is an arc-shaped frame and two sets of second guide rods 41 arranged opposite to each other are vertically arranged on the upper surface of the arc-shaped frame. The rod parts of the second guide rods 41 pass through the first collecting box 221 and slide with the first collecting box 221.

[0045] The second filter plate is placed in the second filter chamber, and is also a circular arc frame arranged in an arc shape, which has an arc-shaped inclined surface; it is used to realize that when the foreign matter in the second filter chamber is filtered by the second filter plate 4, the foreign matter is guided by its arc-shaped inclined surface, so that when the foreign matter in the second filter chamber is filtered and guided by the second filter plate 4, the foreign matter will slide toward the edge of the arc-shaped inclined surface under its own weight; thereby, when the second filter plate 4 is pulled to the second filtering position, the foreign matter located at the edge of the second filter plate 4 will automatically fall into the second collecting box 222, and cooperate with the second collecting box 222 to collect the foreign matter; the second guide rod 41 is used to be connected to the driving end of the linear drive.

[0046] See also Figure 2 As shown, the scraping module 6 includes a first scraping unit 61 and a second scraping unit 62 which can scrape the first filter plate 3 and the second filter plate 4 respectively.

[0047] The first scraper unit 61 and the second scraper unit 62 are respectively arranged corresponding to the first filter plate 3 and the second filter plate 4. The first scraper unit 61 and the second scraper unit 62 are respectively used to scrape off the foreign matter filtered out from the upper surface of the first filter plate 3 and the second filter plate 4 which are displaced to the second filtering position, and make the scraped foreign matter enter the first collection box 221 and the second collection box 222 respectively, so as to realize the automatic collection of the filtered foreign matter.

[0048] See also Figure 7 and Figure 8 As shown, the first scraper unit 61 includes a first scraper 611 that can rotate circumferentially along the axis of the first filter plate 3. The first scraper 611 is driven to rotate by a rotation driver 613 arranged outside the inner filter bin 21 through a fixed frame 612.

[0049] The first scraper 611 is coaxially rotatably arranged on the top of the outer filter bin 22 through a fixing frame 612; the rotation driver 613 is vertically fixed on the fixing frame 612 and is in transmission connection with the driving end of the first scraper 611; the rotation driver 613 is composed of a first servo motor 614 vertically fixed on the fixing frame 612 and a first driving gear 615 coaxially fixed on the output shaft of the first servo motor 614, and the first driving gear 615 is in transmission connection with a driven gear 616 arranged at the driving end of the first scraper 611;

[0050] When it is necessary to scrape off the foreign matter filtered out on the filter plate, firstly, an external power source is connected to drive the first servo motor 614 to drive the first driving gear 615 to rotate, and the driving gear drives the driven gear 616 to rotate while rotating, and then synchronously drives the first scraper 611 to rotate, thereby achieving the effect of driving the first scraper 611 to rotate along the circumference of the filter plate, and achieving the effect of scraping off the foreign matter filtered out on the filter plate; further, by adjusting the spacing between the first scraper 611 and the first filter plate 3, the effect of scraping off foreign matter of different sizes can also be achieved, and it is preferably set at an interval to avoid scraping off the molten raw material by the scraper.

[0051] See also Figure 1 and Figure 6 As shown: the second scraper unit 62 includes a second scraper 621 that can rotate circumferentially along the axis of the second filter plate 4; the second scraper 621 is rotatably arranged outside the outer filter bin 22 through a rotating seat 622, and the rotating seat 622 is driven to rotate by a second servo motor 623 arranged on one side of the outer filter bin 22.

[0052] The second scraper 621 is fixedly connected to the rotating seat 622 through a connecting frame; a gear ring 626 is coaxially sleeved outside the rotating seat 622; the second servo motor 623 is fixedly connected to the housing 1 through a first mounting frame 624; the output shaft of the second servo motor 623 is also coaxially fixedly provided with a second driving gear 625 meshing with the gear ring 626;

[0053] When it is necessary to drive the second scraper 621 to rotate circumferentially along the axis of the second filter plate 4, firstly connect the external power supply to drive the second servo motor 623 to rotate, the output shaft of the second servo motor 623 rotates to drive the second driving gear 625 to rotate, the second driving gear 625 rotates and drives the rotating seat 622 and the second scraper 621 to move in turn, so as to achieve the effect of scraping away foreign matter on the second filter plate 4 through the second scraper 621.

[0054] See also Figure 1 As shown: the linear drive includes a first electric push rod 51 and a second electric push rod 52. The first electric push rod 51 and the second electric push rod 52 are both fixedly arranged outside the shell 1 in a vertical state, and the output shaft passes through the shell 1 and is arranged toward the inside of the shell 1. The driving end of the first electric push rod 51 is fixedly connected to the first guide rod 31, and the driving end of the second electric push rod 52 is fixedly connected to the second guide rod 41.

[0055] The first filter plate 3 and the second filter plate 4 are driven by the first electric push rod 51 and the second electric push rod 52 respectively, so as to achieve the purpose of driving the first filter plate 3 and the second filter plate 4 from the first filtering position to the second filtering position; thereby achieving the effect of alternately filtering out foreign matter in the inner filter bin 21 and the outer filter bin 22, thereby ensuring the continuity of filtration.

[0056] The invention can not only continuously filter the molten plastic but also automatically remove the filtered foreign matter.

[0057] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A plastic float processing device with good stability, characterized in that: The invention comprises a housing (1), a filter element (2) arranged in the housing (1), and a filter plate coaxially arranged in the filter element (2); the filter plate can slide axially between a first filter position and a second filter position under the drive of a linear actuator; the filter element (2) is also provided with a scraper module (6) capable of cleaning the filter plate located in the second filter position; a conduction module (7) is arranged on the housing (1) and is used to introduce raw materials into the filter element (2); the filter element (2) comprises an outer filter chamber (22) and an inner filter chamber (21) coaxially arranged in the outer filter chamber (22); an annular gap is formed between the outer filter chamber (22) and the inner filter chamber (21), and the annular gap constitutes a second filter chamber; the filter plate is divided into a first filter plate (3) and a second filter plate (4); the first filter plate (3) and the second filter plate (4) are respectively axially slidably arranged in the first filter chamber and the second filter chamber under the drive of the linear actuator; the first filter chamber is in the inner filter chamber (21); the A first material collection box (221) and a second material collection box (222) are coaxially arranged outside the inner filter bin (21) and the outer filter bin (22), respectively; the first material collection box (221) and the second material collection box (222) are arranged close to the top of the inner filter bin (21) and the outer filter bin (22); and the edges of the first material collection box (221) and the second material collection box (222) are provided with an outlet portion (223) communicating with the inside of the first material collection box (221) and the second material collection box (222); A filter plate (3) is arranged in a funnel shape and the conical end of the first filter plate (3) is arranged vertically upward; a first guide rod (31) fixedly connected to the driving end of the linear actuator is also coaxially arranged at the conical end of the first filter plate (3); the second filter plate (4) is an arc-shaped frame and two groups of second guide rods (41) arranged opposite to each other are vertically arranged on the upper surface of the arc-shaped frame, and the rod portion of the second guide rod (41) passes through the first collecting box (221) and is slidably matched with the first collecting box (221).

2. A plastic float processing device with good stability according to claim 1, characterized in that: The scraping module (6) comprises a first scraping unit (61) and a second scraping unit (62) capable of scraping the first filter plate (3) and the second filter plate (4) respectively.

3. A plastic float processing device with good stability according to claim 1, characterized in that: The first scraper unit (61) comprises a first scraper (611) capable of circumferentially rotating along the axis of the first filter plate (3); the first scraper (611) is driven to rotate by a rotation driver (613) disposed outside the inner filter bin (21) via a fixing frame (612).

4. A plastic float processing device with good stability according to claim 3, characterized in that: The second scraper unit (62) comprises a second scraper (621) which is rotatable along the axis of the second filter plate (4); the second scraper (621) is rotatably arranged outside the outer filter bin (22) via a rotating seat (622); the rotating seat (622) is driven to rotate via a second servo motor (623) arranged on one side of the outer filter bin (22).

5. A plastic float processing device with good stability according to claim 1, characterized in that: The linear drive comprises a first electric push rod (51) and a second electric push rod (52); the first electric push rod (51) and the second electric push rod (52) are both fixedly arranged outside the housing (1) in a vertical state, and the output shaft passes through the housing (1) and is arranged toward the inside of the housing (1); the driving end of the first electric push rod (51) is fixedly connected to the first guide rod (31), and the driving end of the second electric push rod (52) is fixedly connected to the second guide rod (41).

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