Polyester resin crushing device

Abstract

The utility model belongs to the technical field of crushing devices, and particularly relates to a polyester resin crushing device which comprises a crushing box, the inner side wall of the crushing box is rotationally connected with a crushing roller through a rotating shaft; through the arrangement of the cleaning mechanism, impurities and dust generated in the polyester resin crushing process can be cleaned, and the possibility that dust escapes during discharging after polyester resin crushing is reduced, that is, polyester resin is guided into the crushing box through a discharging opening formed in the top of the crushing box and crushed through two groups of crushing rollers; the crushed polyester resin falls onto a screening net to be screened and filtered, a draught fan is started to introduce air into the crushing box, dust generated after the polyester resin is crushed is guided out of the crushing box through a dust removal opening, the air acts on fan blades to drive the fan blades to rotate, the fan blades drive a transmission rod to rotate, and the transmission rod drives a scraping block to rotate. And the scraping block is used for scraping impurities and polyester resin which are accumulated and blocked on the filter screen, so that the operation of the filter screen is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing devices, and specifically relates to a polyester resin crushing device. Background Technique

[0002] After the polyester resin is polycondensed, it usually needs to be crushed into powder. Such polyester resin can be stacked randomly without forming large internal voids, which is convenient for storage and transportation. At the same time, it is convenient for remelting and processing into other specifications.

[0003] The polyester resin will be doped with impurities, resulting in a large amount of dust escaping during the crushing of the polyester resin. When the user takes out the crushed polyester resin, they will inhale the crushed particles, which will cause damage to the body. Therefore, a polyester resin crushing device is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art and solve the problem that the polyester resin is doped with impurities, resulting in a large amount of dust escaping during the crushing of the polyester resin, and the user will inhale the crushed particles when taking out the crushed polyester resin, causing damage to the body, a polyester resin crushing device is proposed.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: A polyester resin crushing device described in the utility model includes a crushing box; the inner side wall of the crushing box is rotationally connected with a crushing roller through a rotating shaft, and a screening net is installed in the crushing box;

[0006] A cleaning mechanism is arranged in the crushing box. The cleaning mechanism includes a dust removal port opened on one side surface of the crushing box, an air inlet is opened on the other side surface of the crushing box, an air inlet pipe is fixedly connected to one side surface of the crushing box, a positioning block is fixedly connected to the inner side wall of the air inlet pipe, a transmission rod is rotationally connected to one side surface of the positioning block close to the dust removal port, one end of the transmission rod passes through the air inlet and is fixedly connected with a scraping block, a fan blade is fixedly connected to the outer wall of the transmission rod located in the air inlet pipe, and a filter screen is fixedly connected to the inner side wall of the dust removal port. Through the setting of the cleaning mechanism, the impurity dust generated during the crushing of the polyester resin can be cleaned, reducing the possibility of dust escaping during the discharging of the crushed polyester resin.

[0007] Preferably, a support block is fixedly connected to the inner side wall of the air inlet, a positioning ring is slidably connected to the outer wall of the transmission rod located in the air inlet, and the other end of the support block is fixedly connected with the positioning ring. Through the setting of the support block and the positioning ring, it is convenient to assist in supporting the transmission rod and prevent it from bending and breaking.

[0008] Preferably, the inner side wall of the crushing box is fixedly connected to a positioning frame, a reset block is slidably connected inside the positioning frame, one end of the reset block extends out of the positioning frame and is fixedly connected to the screening net, the bottom end of the reset block is elastically connected to the inner bottom wall of the positioning frame via a spring, and a toggle block is fixedly connected to the outer wall of the transmission rod, and through the arrangement of the positioning frame, the reset block, the spring and the toggle block, the filter net can be oscillated to avoid clogging of the filter net.

[0009] Preferably, a baffle plate is fixedly connected to the bottom of the filter screen, and a sealing gasket is provided on the outer wall of the baffle plate. The provision of the baffle plate can prevent the polyester resin passing through the filter screen from getting stuck in the positioning frame and affecting the lifting and lowering of the reset block.

[0010] Preferably, an auxiliary plate is fixedly connected to the top of the positioning frame, and the auxiliary plate is configured as a conical block. The configuration of the auxiliary plate can facilitate the discharge of the crushed polyester resin and prevent it from accumulating on the top of the positioning frame.

[0011] Preferably, an observation port is provided on one side of the pulverizing box, and a transparent block is fixedly connected to the inner wall of the observation port. The arrangement of the transparent block and the observation port facilitates observation of the situation inside the pulverizing box.

[0012] Preferably, a guide plate is fixedly connected to the inner bottom wall of the crushing box, and the guide plate is configured as a conical block. The configuration of the guide plate and the conical block can facilitate the discharge of the crushed polyester resin.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a polyester resin pulverizing device. Through the setting of a cleaning mechanism, the impurities and dust generated in the polyester resin pulverizing process can be cleaned, and the possibility of dust emission generated by the polyester resin after discharging after pulverizing is reduced. That is, the polyester resin is introduced into the pulverizing box through a feed opening opened at the top of the pulverizing box and pulverized by two groups of pulverizing rollers. The pulverized polyester resin falls onto a screening net for screening and filtering. The fan is started to introduce wind into the pulverizing box, and the dust generated after the polyester resin is pulverized is guided out of the pulverizing box through a dust removal port. The wind acts on the fan blades to drive the fan blades to rotate, and the fan blades drive the transmission rod to rotate. The transmission rod drives the scraper block to rotate, and the scraper block scrapes the impurities and polyester resin accumulated and blocked on the filter net to ensure the operation of the filter net.

[0015] 2. The utility model provides a polyester resin crushing device. Through the arrangement of a positioning frame, a reset block, a spring and a toggle block, the filter screen can be vibrated to avoid clogging of the filter screen. That is, the transmission rod rotates and drives the toggle block to rotate at the same time, so that the toggle block can intermittently press the screening screen to move it down, and then the screening screen is reset and bounced up under the action of multiple springs, so that the screening screen is vibrated, so that impurities and polyester resin stuck in the mesh of the screening screen are ejected, thereby ensuring the filtering effect of the screening screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 This is one of the cross-sectional structural diagrams of the crushing box in the utility model;

[0019] Figure 3 This is the second cross-sectional structural diagram of the crushing box in the utility model;

[0020] Figure 4 yes Figure 2 Enlarged structural diagram of point A in the middle.

[0021] Legend:

[0022] 1. Crushing box; 2. Crushing roller; 3. Screening net; 4. Cleaning mechanism; 41. Dust removal port; 42. Air inlet pipe; 43. Positioning block; 44. Transmission rod; 45. Fan blade; 46. Scraping block; 47. Filter net; 5. Support block; 6. Positioning frame; 7. Spring; 8. Blocking plate; 9. Auxiliary plate; 10. Observation port; 11. Guide plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Specific examples are given below.

[0025] See also Figures 1 - 4, the utility model provides a polyester resin crushing device, including a crushing box 1; the inner side wall of the crushing box 1 is rotationally connected with a crushing roller 2 through a rotating shaft, and a screening net 3 is installed in the crushing box 1;

[0026] A cleaning mechanism 4 is arranged in the crushing box 1. The cleaning mechanism 4 includes a dust removal port 41 opened on one side surface of the crushing box 1, an air inlet is opened on the other side surface of the crushing box 1, a blast pipe 42 is fixedly connected to one side surface of the crushing box 1, a positioning block 43 is fixedly connected to the inner side wall of the blast pipe 42, a transmission rod 44 is rotationally connected to one side surface of the positioning block 43 close to the dust removal port 41, one end of the transmission rod 44 passes through the air inlet and is fixedly connected with a scraping block 46, a fan blade 45 is fixedly connected to the outer wall of the transmission rod 44 located in the blast pipe 42, and a filter screen 47 is fixedly connected to the inner side wall of the dust removal port 41; during operation, an external air guiding device can be provided at the dust removal port 41 to facilitate the transmission of the dust blown through the dust removal port 41. A motor can be installed on the side surface of the positioning block 43 away from the transmission rod 44, and its output end penetrates through the positioning block 43 and is connected to the transmission rod 44, or the blast pipe 42 can be connected to an external blower. Through the setting of the cleaning mechanism 4, the impurity dust generated during the crushing of polyester resin can be cleaned, reducing the possibility of dust escape during the discharging of the crushed polyester resin. That is, the polyester resin is introduced into the crushing box 1 through the feeding port opened at the top of the crushing box 1 and is crushed by two groups of crushing rollers 2. The crushed polyester resin falls onto the screening net 3, and the polyester resin that does not meet the standard and large impurities are screened and stayed on the screening net 3 for subsequent re-screening and processing. At the same time, during this process, the blower is started to introduce air into the crushing box 1, and the dust generated after the crushing of the polyester resin is discharged from the crushing box 1 through the dust removal port 41. Through the setting of the filter screen 47, part of the overly dispersed polyester resin is prevented from being synchronously discharged, resulting in waste of polyester resin. At the same time, the air introduced by the blower acts on the fan blade 45 to drive the fan blade 45 to rotate. The fan blade 45 drives the transmission rod 44 to rotate, and the transmission rod 44 drives the scraping block 46 to rotate. The scraping block 46 scrapes the impurities and polyester resin accumulated and blocked on the filter screen 47 to ensure the operation of the filter screen 47.

[0027] Further, as Figure 3 shown, a support block 5 is fixedly connected to the inner side wall of the air inlet, and a positioning ring is slidably connected to the outer wall of the transmission rod 44 located in the air inlet. The other end of the support block 5 is fixedly connected to the positioning ring. During operation, through the setting of the support block 5 and the positioning ring, it is convenient to assist in supporting the transmission rod 44 to prevent it from bending and breaking.

[0028] Further, as Figure 2 and Figure 4As shown, the inner wall of the crushing box 1 is fixedly connected with a positioning frame 6, and a reset block is slidably connected inside the positioning frame 6. One end of the reset block extends out of the positioning frame 6 and is fixedly connected to the screening net 3. The bottom end of the reset block is elastically connected to the inner bottom wall of the positioning frame 6 through a spring 7, and a toggle block is fixedly connected to the outer wall of the transmission rod 44. During operation, three groups of transmission rods 44 are provided, and only one transmission rod 44 of the three groups of transmission rods 44 is fixedly connected with a toggle block. Through the arrangement of the positioning frame 6, the reset block, the spring 7 and the toggle block, the filter net 47 can be vibrated to avoid clogging of the filter net 47, that is, the transmission rod 44 rotates while driving the toggle block to rotate, so that the toggle block can intermittently press the screening net 3 to move it downward, and then the screening net 3 is reset and bounced under the action of multiple springs 7, so that the screening net 3 is vibrated, so that the impurities and polyester resin stuck in the mesh of the screening net 3 are ejected, and the filtering effect of the screening net 3 is ensured.

[0029] Further, such as Figure 2 and Figure 4 As shown, a baffle plate 8 is fixedly connected to the bottom of the filter screen 47, and a sealing pad is arranged on the outer wall of the baffle plate 8. During operation, the setting of the baffle plate 8 can prevent the polyester resin passing through the filter screen 47 from being stuck in the positioning frame 6, thereby affecting the lifting and lowering of the reset block.

[0030] Further, such as Figure 2 and Figure 3 As shown, the top of the positioning frame 6 is fixedly connected with an auxiliary plate 9, which is set as a conical block. During operation, the setting of the auxiliary plate 9 can facilitate the discharge of the crushed polyester resin and avoid its accumulation on the top of the positioning frame 6.

[0031] Further, such as Figure 1 As shown, a viewing port 10 is provided on one side of the crushing box 1, and a transparent block is fixedly connected to the inner wall of the viewing port 10. During operation, the transparent block and the viewing port 10 can be used to facilitate observation of the situation inside the crushing box 1.

[0032] Further, such as Figure 2 As shown, the inner bottom wall of the crushing box 1 is fixedly connected with a guide plate 11, and the guide plate 11 is set as a cone block. During operation, the guide plate 11 and the cone block are set to facilitate the discharge of the crushed polyester resin.

[0033] Working principle: Clean the impurity dust generated during the crushing process of polyester resin, reduce the possibility of dust escaping during the discharging of crushed polyester resin. That is, the polyester resin is introduced into the crushing box 1 through the feeding port opened at the top of the crushing box 1 and crushed by two groups of crushing rollers 2. The crushed polyester resin falls onto the screening mesh 3, and the polyester resin that does not meet the standards and large impurities are screened and retained on the screening mesh 3 for subsequent re-screening and processing. At the same time, during this process, the fan is started to introduce air into the crushing box 1, and the dust generated after the crushing of the polyester resin is discharged from the crushing box 1 through the dust removal port 41. Through the setting of the filter screen 47, it is avoided that some overly dispersed polyester resin is synchronously discharged, resulting in waste of polyester resin. At the same time, the air introduced by the fan acts on the fan blade 45 to drive the fan blade 45 to rotate. The fan blade 45 drives the transmission rod 44 to rotate, and the transmission rod 44 drives the scraping block 46 to rotate. The scraping block 46 scrapes the impurities and polyester resin accumulated and blocked on the filter screen 47 to ensure the operation of the filter screen 47.

[0034] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A polyester resin pulverizing device, comprising a pulverizing box (1); the inner side wall of the pulverizing box (1) is rotatably connected to a pulverizing roller (2) via a rotating shaft, characterized in that: A screening net (3) is installed in the crushing box (1); A cleaning mechanism (4) is provided in the crushing box (1), the cleaning mechanism (4) comprising a dust removal port (41) provided on one side of the crushing box (1), an air inlet provided on the other side of the crushing box (1), an air inlet pipe (42) fixedly connected to one side of the crushing box (1), a positioning block (43) fixedly connected to the inner wall of the air inlet pipe (42), a transmission rod (44) rotatably connected to the side of the positioning block (43) close to the dust removal port (41), one end of the transmission rod (44) passes through the air inlet and is fixedly connected to a scraping block (46), a fan blade (45) is fixedly connected to the outer wall of the transmission rod (44) located in the air inlet pipe (42), and a filter screen (47) is fixedly connected to the inner wall of the dust removal port (41).

2. A polyester resin pulverizing device according to claim 1, characterized in that: The inner wall of the air inlet is fixedly connected to a support block (5), the transmission rod (44) is slidably connected to a positioning ring on the outer wall inside the air inlet, and the other end of the support block (5) is fixedly connected to the positioning ring.

3. A polyester resin pulverizing device according to claim 2, characterized in that: The inner side wall of the crushing box (1) is fixedly connected to a positioning frame (6), a reset block is slidably connected inside the positioning frame (6), one end of the reset block extends out of the positioning frame (6) and is fixedly connected to the screening net (3), the bottom end of the reset block is elastically connected to the inner bottom wall of the positioning frame (6) through a spring (7), and a toggle block is fixedly connected to the outer wall of the transmission rod (44).

4. A polyester resin pulverizing device according to claim 3, characterized in that: A baffle plate (8) is fixedly connected to the bottom of the filter screen (47), and a sealing gasket is provided on the outer wall of the baffle plate (8).

5. A polyester resin pulverizing device according to claim 4, characterized in that: An auxiliary plate (9) is fixedly connected to the top of the positioning frame (6), and the auxiliary plate (9) is configured as a conical block.

6. A polyester resin pulverizing device according to claim 5, characterized in that: An observation port (10) is provided on one side of the crushing box (1), and a transparent block is fixedly connected to the inner side wall of the observation port (10).

7. A polyester resin pulverizing device according to claim 6, characterized in that: A material guide plate (11) is fixedly connected to the inner bottom wall of the crushing box (1), and the material guide plate (11) is configured as a conical block.

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