Grinding regeneration device for polymer material

Abstract

The invention relates to the technical field of plastic recycling, and discloses a grinding regeneration device for polymer materials, which comprises a grinding machine main body arranged on a mounting seat, a driving shaft rotationally arranged at the center of the grinding machine main body and positioned on the inner side of the grinding machine main body, and a static grinding body detachably arranged on the grinding machine main body, the movable grinding body is detachably arranged on the driving shaft; and the clamping mechanism is arranged between the static grinding body and the grinding machine main body. According to the grinding regeneration device for the polymer material, the mounting rod is matched with the limiting groove in an inserted mode so as to limit radial movement after the mounting rod is inserted, and axial movement of the mounting rod is limited through the locking piece, so that rapid fixing and unlocking of the static grinding body are achieved; when the clamping mechanism is unlocked, the interlocking mechanism is triggered to act, the positioning connection between the movable grinding body and the driving shaft is automatically relieved, the disassembly operation of the static grinding body and the movable grinding body is synchronously linked, a bolt does not need to be independently disassembled, and therefore the replacement process is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling, in particular to a grinding and regeneration device for polymer materials. Background Art

[0002] Polymer materials include, but are not limited to, thermosetting polymers such as polyethylene (PE) / polypropylene (PP) products, epoxy resin (EP) / phenolic resin (PF), and elastomeric materials. In the processing, modification, and recycling of polymer materials, the grinding and regeneration of plastic particles is an important technical path for the comprehensive utilization of solid waste. Through mechanical grinding and modification processes, waste plastics (such as scraps and discarded products) are converted into renewable powder or granular materials, achieving resource recycling and reducing environmental pollution.

[0003] At present, the most common method of processing plastic particles is to use a grinder. Grinding bodies with different grinding patterns are selected according to product requirements. The waste plastic is processed into particles of the required particle size through the mechanical forces such as shear, impact, and friction generated by the relative movement of the dynamic grinding body and the static grinding body. As the grinding body frequently impacts and collides with the plastic particles for a long time, the surface will gradually wear out and must be replaced in time. However, most of the existing grinders use bolts and nuts to fix the dynamic grinding body and the static grinding body respectively, which makes disassembly and replacement more troublesome and inconvenient. Summary of the Invention

[0004] In response to the above-mentioned shortcomings of the prior art, the present invention provides a grinding and regeneration device for polymer materials, which can effectively solve the problem in the prior art that the dynamic grinding body and the static grinding body are fixedly installed separately by bolts and nuts in the grinding machine, making disassembly and replacement more troublesome and inconvenient.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a grinding and regeneration device for polymer materials, comprising a grinding machine body arranged on a mounting seat, and a drive shaft rotatably arranged at the center of the grinding machine body, wherein the drive shaft is located inside the grinding machine body, and further comprising:

[0007] The static grinding body is detachably arranged on the grinding machine body;

[0008] The dynamic grinding body is detachably arranged on the driving shaft;

[0009] A clamping mechanism is provided between the static grinding body and the grinding machine body, the clamping mechanism includes a mounting rod symmetrically arranged at the bottom of the static grinding body, a limiting groove adapted for the mounting rod is provided on the top of the grinding machine body, and a locking member for limiting the upward and downward movement of the mounting rod is provided in the limiting groove;

[0010] The interlocking mechanism is arranged between the dynamic grinding body and the clamping mechanism. The interlocking mechanism is used to automatically release the positioning connection between the dynamic grinding body and the drive shaft when the clamping mechanism is unlocked.

[0011] Furthermore, the locking member includes a positioning seat fixedly arranged in the limiting groove, and the inner wall of the positioning seat is provided with a wedge-shaped groove, an adjustment cylinder is provided on the inner side of the positioning seat, three positioning balls are provided in the adjustment cylinder, and the outer wall of the positioning ball is against the inner wall of the wedge-shaped groove.

[0012] Furthermore, the bottom end of the mounting rod is a tapered end, and a groove is provided in the middle of the mounting rod. The diameter D1 of the mounting rod is larger than the minimum channel diameter D2 formed between the three positioning balls.

[0013] Furthermore, an elastic member is connected between the outer wall of the adjusting cylinder and the inner wall of the limiting groove, a magnetic ring is provided at the bottom of the adjusting cylinder, a strong magnetic rod is movably provided through the wall of the grinding machine body, and the strong magnetic rod is located at the bottom of the magnetic ring, and the strong magnetic rod and the magnetic ring are magnetically attracted;

[0014] When the strong magnetic rod is close to the magnetic ring, the elastic member is in a compressed state.

[0015] Furthermore, an unlocking ring is slidably provided on the outer side of the grinder body, the two strong magnetic bars are both provided on the top of the unlocking ring, and a reset member is connected between the outer wall of the unlocking ring and the outer wall of the grinder body.

[0016] Furthermore, the interlocking mechanism includes a locking groove provided on the side wall of the driving shaft, and a positioning block is provided on the inner side of the dynamic grinding body;

[0017] When one end of the positioning block is inserted into the locking groove, the movable grinding body is in a locked state.

[0018] Furthermore, the positioning block includes a V-shaped spring piece connected to the inner wall of the dynamic grinding body, and an inverted triangle block connected to one end of the V-shaped spring piece away from the positioning block.

[0019] Furthermore, a first tooth plate is provided at the bottom of the positioning block, and the first tooth plate is slidably connected to the wall of the grinder body. The first tooth plate is in an inverted "L" shape as a whole, and the end of the first tooth plate away from the positioning block is set as a tooth surface.

[0020] Furthermore, a second tooth plate is provided at the bottom of the unlocking ring, and the second tooth plate is slidably connected to the wall of the grinder body. A transmission gear is provided on the inner wall of the grinder body through the rotation of the rotating shaft, and the transmission gears are engaged with the first tooth plate and the second tooth plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention limits the radial movement of the mounting rod after insertion by plugging and cooperating with the limiting groove, and limits the axial movement of the mounting rod by the locking member, thereby realizing rapid fixation and unlocking of the static grinding body; when the clamping mechanism is unlocked, the interlocking mechanism is triggered to automatically release the positioning connection between the dynamic grinding body and the drive shaft, so that the disassembly operations of the static grinding body and the dynamic grinding body are synchronized and linked, without the need to remove the bolts separately, thereby simplifying the replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0024] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 Schematic diagram of the cross-sectional structure of the grinding machine body according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic structural diagram of a static grinding body according to an embodiment of the present invention;

[0027] Figure 4 For the embodiment of the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0028] Figure 5 This is a schematic cross-sectional view of a positioning seat according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic structural diagram of an adjusting cylinder according to an embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the minimum channel formed between three positioning balls according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic structural diagram of a lock slot according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic structural diagram of a positioning block according to an embodiment of the present invention;

[0033] Figure 10 For the embodiment of the present invention Figure 8 Schematic diagram of the structure with a partial enlargement at point B.

[0034] The numbers in the figure represent: 100, grinding machine body; 200, driving shaft; 300, static grinding body; 400, dynamic grinding body; 500, clamping mechanism; 501, mounting rod; 502, limiting groove; 503, positioning seat; 504, wedge groove; 505, adjusting cylinder; 506, positioning ball; 507, groove; 508, elastic member; 509, magnetic ring; 510, strong magnetic rod; 511, unlocking ring; 512, reset member; 600, interlocking mechanism; 601, locking groove; 602, positioning block; 6021, V-shaped spring piece; 6022, inverted triangle block; 603, first tooth plate; 604, second tooth plate; 605, transmission gear. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] The present invention will be further described below with reference to the embodiments.

[0037] Example 1, reference Figure 1-Figure 7 , which is the first embodiment of the present invention, provides a grinding and regeneration device for polymer materials, including a grinding machine body 100 set on a mounting seat, and a drive shaft 200 rotatably set at the center of the grinding machine body 100, and the drive shaft 200 is located inside the grinding machine body 100, and further includes: a static grinding body 300, which is detachably set on the grinding machine body 100, and a hopper ( Figure 1 、 Figure 2 The movable grinding body 400 is detachably arranged on the driving shaft 200.

[0038] Specifically, a grinding motor (such as Figure 1 As shown), the output shaft of the grinding motor is connected to the drive shaft 200 through a transmission component (such as a pulley set, a belt). This is a mature existing technology and will not be described in detail here.

[0039] At present, the most common method is to use a grinder to process plastic particles. Grinding bodies with different grinding patterns are selected and installed according to product requirements. The waste plastic is processed into particles of the required particle size through the mechanical forces such as shear, impact, and friction generated by the relative movement of the dynamic grinding body 400 and the static grinding body 300. As the grinding body frequently impacts and collides with the plastic particles for a long time, the surface will gradually wear out and must be replaced in time. However, the existing grinders all fix the dynamic grinding body 400 and the static grinding body 300 with bolts and nuts, which makes disassembly and replacement more troublesome and inconvenient.

[0040] The present invention also includes: a clamping mechanism 500, which is installed between the static grinding body 300 and the grinding machine body 100. The clamping mechanism 500 includes a mounting rod 501 symmetrically welded or fixedly installed at the bottom of the static grinding body 300. The top of the grinding machine body 100 is provided with a limiting groove 502 adapted to the mounting rod 501. The top of the limiting groove 502 is provided with a through hole with the same diameter as the mounting rod 501, which further limits the radial movement of the mounting rod 501 after insertion. A locking member for limiting the up and down movement of the mounting rod 501 is installed in the limiting groove 502.

[0041] The interlocking mechanism 600 is installed between the dynamic grinding body 400 and the clamping mechanism 500. The interlocking mechanism 600 is used to automatically release the positioning connection between the dynamic grinding body 400 and the driving shaft 200 when the clamping mechanism 500 is unlocked.

[0042] Specifically, the mounting rod 501 is plugged into the limiting groove 502 to limit the radial movement of the mounting rod 501 after insertion, and the locking member limits the axial movement of the mounting rod 501, thereby realizing the rapid fixation and unlocking of the static grinding body 300; when the clamping mechanism 500 is unlocked, the interlocking mechanism 600 is triggered to automatically release the positioning connection between the dynamic grinding body 400 and the drive shaft 200, so that the disassembly operations of the static grinding body 300 and the dynamic grinding body 400 are synchronized and linked, without the need to remove the bolts separately, thereby simplifying the replacement process.

[0043] Specifically, the locking member can be a device that rotates the eccentric handle to press the eccentric against the mounting rod 501, thereby securing the device by friction; rotating the handle in the opposite direction releases the pressure on the mounting rod 501, thereby removing the static grinding body 300. The interlocking mechanism 600 can be a device that is rigidly connected to the positioning pin of the dynamic grinding body 400 via an armature, and the positioning pin is inserted into the slot of the drive shaft 200. The control circuit detects the locking state of the locking mechanism 500 (such as the position of the eccentric handle) and triggers the electromagnet to be powered on / off. The electromagnet generates magnetic force to attract the armature, driving the positioning pin to insert into the slot of the drive shaft 200, thereby fixing the circumferential position of the dynamic grinding body 400.

[0044] Reference Figure 5-Figure 7The locking member includes a positioning seat 503 fixedly installed in the limiting groove 502, and a wedge-shaped groove 504 is provided on the inner wall of the positioning seat 503, an adjusting cylinder 505 is provided on the inner side of the positioning seat 503, and three positioning balls 506 are movably installed in the adjusting cylinder 505, and a circular hole for the positioning balls 506 to extend or retract is provided on the wall of the adjusting cylinder 505, and the outer wall of the positioning balls 506 is against the inner wall of the wedge-shaped groove 504; the bottom end of the mounting rod 501 is a tapered end, and a groove 507 is provided in the middle of the mounting rod 501, and the diameter D1 of the mounting rod 501 is larger than the minimum channel diameter D2 formed between the three positioning balls 506.

[0045] Specifically, as the mounting rod 501 is inserted into the limiting groove 502, the wall of the mounting rod 501 contacts the wall of the three positioning balls 506. Under the pushing action of the mounting rod 501, the positioning balls 506 drive the adjustment cylinder 505 to move toward the bottom end of the mounting rod 501, and the three positioning balls 506 move radially outward at the same time. When the minimum channel diameter D2 formed therebetween is equal to the diameter D1 of the mounting rod 501, the positioning balls 506 no longer move following the push of the mounting rod 501. As the mounting rod 501 continues to move, the groove 507 moves to between the three positioning balls 506 and embeds into the groove 507, limiting the axial movement of the mounting rod 501; at the same time, in cooperation with the wedge-shaped groove 504 on the inner side of the positioning seat 503, the mounting rod 501 is prevented from being pulled out of the limiting groove 502, thereby realizing the positioning between the static grinding body 300 and the grinding machine body 100.

[0046] Specifically, when the static grinding body 300 attempts to move axially and disengage the positioning seat 503 due to external factors (such as inversion or vibration), it will drive the adjustment cylinder 505 and the positioning balls 506 outward. Due to the change in the diameter of the wedge-shaped groove 504, the three positioning balls 506 are continuously subjected to inward pressure. As the vibration intensifies, the tendency of the mounting rod 501 to disengage from the positioning seat 503 increases, and the squeezing force of the three positioning balls 506 on the outer wall of the mounting rod 501 also increases accordingly, ultimately firmly locking the mounting rod 501 within the positioning seat 503 and preventing it from disengaging.

[0047] Reference Figure 4 and Figure 5 An elastic member 508 is connected between the outer wall of the regulating cylinder 505 and the inner wall of the limiting groove 502 .

[0048] Specifically, the elastic member 508 is preferably a compression spring that can withstand axial compression force. When the positioning ball 506 and the adjustment cylinder 505 move with the mounting rod 501, the elastic member 508 stores compression potential energy, so that the adjustment cylinder 505 always has a tendency to move outward (i.e., toward the top of the mounting rod 501), thereby enhancing the squeezing force of the positioning ball 506 on the outer wall of the mounting rod 501.

[0049] Example 2, reference Figure 1-Figure 7 This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that, due to the locking mechanism, axial movement of the mounting rod 501 tends to lock it tighter, preventing its automatic removal. There are two ways to unlock the mounting rod 501: one is to directly move the three positioning balls 506 toward the bottom of the mounting rod 501, expanding the diameter D2 of the channel between them; the other is to move the adjustment cylinder 505, thereby driving the three positioning balls 506 toward the bottom of the mounting rod 501, similarly expanding the diameter D2 of the channel. Ultimately, unlocking is achieved, allowing the static grinding body 300 to be removed.

[0050] Reference Figure 4 and Figure 5 A magnetic ring 509 is integrally formed at the bottom of the adjusting cylinder 505, and a strong magnetic rod 510 is movably provided on the wall of the grinding machine body 100, and the strong magnetic rod 510 is located at the bottom of the magnetic ring 509. The strong magnetic rod 510 and the magnetic ring 509 are magnetically attracted to each other; when the strong magnetic rod 510 is close to the magnetic ring 509, the elastic member 508 is in a compressed state.

[0051] Specifically, when unlocking is required, the strong magnetic rod 510 is moved upward. The strong magnetic rod 510 attracts the magnetic ring 509 through magnetic force, compresses the elastic part 508, and causes the adjustment cylinder 505 to move to one side, thereby ensuring that the three positioning balls 506 expand radially synchronously. When D2 is greater than the diameter D1 of the mounting rod 501, the mounting rod 501 loses the restriction of the positioning balls 506. At this time, the mounting rod 501 can be detached from the positioning seat 503, thereby realizing the rapid disassembly of the static grinding body 300.

[0052] Reference Figure 2 and Figure 4 An unlocking ring 511 is slidably installed on the outside of the grinder body 100 , and two strong magnetic bars 510 are fixedly installed on the top of the unlocking ring 511 . A reset member 512 is connected between the outer wall of the unlocking ring 511 and the outer wall of the grinder body 100 .

[0053] Specifically, the reset member 512 can be a spring or a metal spring; it is convenient for pushing the unlocking ring 511 to unlock the static grinding body 300 and the dynamic grinding body 400 and then automatically reset; when an accidental touch occurs, the unlocking ring 511 will not slide easily due to the damping effect of the reset member 512. Only when the operator applies a stable external force greater than the damping threshold can the unlocking ring 511 overcome the resistance and drive the strong magnetic rod 510 to move and achieve unlocking. This effectively prevents the strong magnetic rod 510 from accidentally detaching from the magnetic ring 509 due to factors such as vibration and accidental contact, and prevents the static grinding body 300 from being unlocked and falling off unexpectedly. The remaining structure is the same as that of Example 1.

[0054] Example 3, reference Figures 1-10, which is the third embodiment of the present invention. This embodiment differs from the second embodiment in that: the interlocking mechanism 600 includes a locking groove 601 provided on the side wall of the drive shaft 200, and a positioning block 602 is provided on the inner side of the dynamic grinding body 400; when one end of the positioning block 602 is inserted into the locking groove 601, the dynamic grinding body 400 is in a locked state.

[0055] Specifically, when the dynamic grinding body 400 is installed on the drive shaft 200, the positioning block 602 is aligned with the locking groove 601 and inserted into it to form a mechanical connection. When the drive shaft 200 rotates, the groove wall of the locking groove 601 and the contact surface of the positioning block 602 generate a circumferential extrusion force, forcing the positioning block 602 to rotate with the drive shaft 200, thereby driving the dynamic grinding body 400 to rotate synchronously. In this way, the shear, impact, friction and other mechanical forces generated by the relative motion of the dynamic grinding body 400 and the static grinding body 300 process the waste plastic into particles of the required size.

[0056] Reference Figure 6 and Figure 8 A first tooth plate 603 is provided at the bottom of the positioning block 602, and the first tooth plate 603 is slidably connected to the wall of the grinder body 100. The first tooth plate 603 is in an inverted "L" shape as a whole, and the end of the first tooth plate 603 away from the positioning block 602 is set as a tooth surface; a second tooth plate 604 is provided at the bottom of the unlocking ring 511, and the second tooth plate 604 is slidably connected to the wall of the grinder body 100. A transmission gear 605 is provided on the inner wall of the grinder body 100 through the rotation of the rotating shaft, and the transmission gear 605 is meshed with the first tooth plate 603 and the second tooth plate 604.

[0057] Specifically, when the unlocking ring 511 moves upward (at which point the drive shaft 200 has stopped working), the second tooth plate 604 moves upward synchronously, driving the first tooth plate 603 to move horizontally away from the outside of the drive shaft 200 via the transmission gear 605. The first tooth plate 603 pulls the positioning block 602 out of the lock slot 601, releasing the mechanical connection between the dynamic grinding body 400 and the drive shaft 200, allowing the dynamic grinding body 400 to be removed from the drive shaft 200. This realizes an integrated design that allows for quick disassembly and assembly of the dynamic grinding body 400 and the static grinding body 300. This is particularly suitable for waste plastic processing scenarios where frequent replacement of grinding bodies is required, significantly improving the operating efficiency and reliability of the device. The remaining structure is the same as that of Example 2.

[0058] Example 4, reference Figure 8-Figure 9 , which is the fourth embodiment of the present invention. This embodiment is different from the second embodiment in that: the positioning block 602 includes a V-shaped spring piece 6021 connected to the inner wall of the movable grinding body 400, and an inverted triangle block 6022 connected to the end of the V-shaped spring piece 6021 away from the positioning block 602.

[0059] Specifically, the V-shaped spring piece 6021 is made of spring steel or elastic alloy, has bidirectional elastic deformation capability, and can withstand extrusion or tension in the radial direction (perpendicular to the direction of the drive shaft 200).

[0060] Specifically, when the dynamic grinding body 400 approaches the drive shaft 200, the inclined surface of the inverted triangular block 6022 first contacts the edge of the drive shaft 200. During the insertion process, the inverted triangular block 6022 radially interferes with the locking groove 601, and the V-shaped spring piece 6021 is radially compressed and deformed, thereby preventing component damage caused by rigid collision. As the dynamic grinding body 400 continues to move downward for installation, after the inverted triangular block 6022 is fully embedded in the locking groove 601, its bottom edge forms a surface contact with the inner wall of the locking groove 601, transmitting the circumferential torque of the drive shaft 200 to the dynamic grinding body 400 through the V-shaped spring piece 6021. The remaining structure is the same as that of Example 3.

[0061] Based on Examples 1-4, the working principle of the present invention is as follows:

[0062] When unlocking is required, the unlocking ring 511 is pushed upward to move the strong magnetic rod 510 upward synchronously. The strong magnetic rod 510 attracts the magnetic ring 509 through magnetic force, compresses the elastic member 508, and moves the adjustment cylinder 505 toward the bottom end of the mounting rod 501, thereby ensuring that the three positioning balls 506 expand radially synchronously. When D2 is greater than the diameter D1 of the mounting rod 501, the mounting rod 501 loses the restriction of the positioning balls 506. At this time, the mounting rod 501 can be separated from the positioning seat 503, thereby realizing the rapid disassembly of the static grinding body 300; as the unlocking ring 511 moves upward, the strong magnetic rod 510 attracts the magnetic ring 509 through magnetic force, compresses the elastic member 508, and moves the adjustment cylinder 505 toward the bottom end of the mounting rod 501, thereby ensuring that the three positioning balls 506 expand radially synchronously. At the same time, the second tooth plate 604 moves upward synchronously, and drives the first tooth plate 603 to move horizontally away from the outside of the drive shaft 200 through the transmission gear 605. The first tooth plate 603 pulls the positioning block 602 out of the lock slot 601, releasing the mechanical connection between the dynamic grinding body 400 and the drive shaft 200, so that the dynamic grinding body 400 can be removed from the drive shaft 200, realizing an integrated design for quick disassembly and assembly of the dynamic grinding body 400 and the static grinding body 300, which is particularly suitable for waste plastic processing scenarios where frequent replacement of grinding bodies is required, and significantly improves the operating efficiency and reliability of the device.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A grinding and regeneration device for polymer materials, comprising a grinding machine body (100) arranged on a mounting seat, and a drive shaft (200) rotatably arranged at the center of the grinding machine body (100), wherein the drive shaft (200) is located inside the grinding machine body (100), characterized in that: Also includes: A static grinding body (300) is detachably mounted on the grinding machine body (100); A dynamic grinding body (400) is detachably mounted on the driving shaft (200); A clamping mechanism (500) is provided between the static grinding body (300) and the grinding machine body (100), wherein the clamping mechanism (500) comprises a mounting rod (501) symmetrically arranged at the bottom of the static grinding body (300), a limiting groove (502) adapted to the mounting rod (501) is provided on the top of the grinding machine body (100), and a locking member for limiting the upward and downward movement of the mounting rod (501) is provided in the limiting groove (502); The interlocking mechanism (600) is arranged between the movable grinding body (400) and the clamping mechanism (500). The interlocking mechanism (600) is used to automatically release the positioning connection between the movable grinding body (400) and the driving shaft (200) when the clamping mechanism (500) is unlocked.

2. The grinding and regeneration device for polymer materials according to claim 1, characterized in that: The locking member comprises a positioning seat (503) fixedly arranged in a limiting groove (502), and the inner wall of the positioning seat (503) is provided with a wedge-shaped groove (504), an adjusting cylinder (505) is provided on the inner side of the positioning seat (503), and three positioning balls (506) are provided in the adjusting cylinder (505), and the outer wall of the positioning ball (506) is against the inner wall of the wedge-shaped groove (504).

3. The grinding and regeneration device for polymer materials according to claim 2, characterized in that: The bottom end of the mounting rod (501) is a tapered end, and a groove (507) is provided in the middle of the mounting rod (501). The diameter D1 of the mounting rod (501) is larger than the minimum channel diameter D2 formed between the three positioning balls (506).

4. The grinding and regeneration device for polymer materials according to claim 2, characterized in that: An elastic member (508) is connected between the outer wall of the regulating cylinder (505) and the inner wall of the limiting groove (502); a magnetic ring (509) is provided at the bottom of the regulating cylinder (505); a strong magnetic rod (510) is movably provided through the wall of the grinding machine body (100); the strong magnetic rod (510) is located at the bottom of the magnetic ring (509); and the strong magnetic rod (510) and the magnetic ring (509) are magnetically attracted to each other; When the strong magnetic rod (510) is close to the magnetic ring (509), the elastic member (508) is in a compressed state.

5. The grinding and regeneration device for polymer materials according to claim 4, characterized in that: An unlocking ring (511) is slidably provided on the outer side of the grinder body (100), and the two strong magnetic bars (510) are both provided on the top of the unlocking ring (511). A reset member (512) is connected between the outer wall of the unlocking ring (511) and the outer wall of the grinder body (100).

6. The grinding and regeneration device for polymer materials according to claim 5, characterized in that: The interlocking mechanism (600) includes a locking groove (601) provided on the side wall of the driving shaft (200), and a positioning block (602) is provided on the inner side of the dynamic grinding body (400); When one end of the positioning block (602) is inserted into the locking slot (601), the dynamic grinding body (400) is in a locked state.

7. The grinding and regeneration device for polymer materials according to claim 6, characterized in that: The positioning block (602) comprises a V-shaped spring piece (6021) connected to the inner wall of the dynamic grinding body (400), and an inverted triangle block (6022) connected to one end of the V-shaped spring piece (6021) away from the positioning block (602).

8. The grinding and regeneration device for polymer materials according to claim 6 or 7, characterized in that: A first tooth plate (603) is provided at the bottom of the positioning block (602), and the first tooth plate (603) is slidably connected to the wall of the grinding machine body (100), the first tooth plate (603) is in an inverted "L" shape as a whole, and the end of the first tooth plate (603) away from the positioning block (602) is set as a tooth surface.

9. The grinding and regeneration device for polymer materials according to claim 8, characterized in that: A second tooth plate (604) is provided at the bottom of the unlocking ring (511), and the second tooth plate (604) is slidably connected to the wall of the grinder body (100). A transmission gear (605) is provided on the inner wall of the grinder body (100) through rotation of a rotating shaft, and the transmission gear (605) is meshed with the first tooth plate (603) and the second tooth plate (604).

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