Locking mechanism for plastic crushing device

Abstract

The invention relates to the technical field of plastic crushing, and specifically discloses a locking mechanism for a plastic crushing device, comprising a rod sleeve, a hand wheel, a push rod, a directional locking pin, and a matching block; the hand wheel of the invention drives the push rod to move along the axial direction of the sleeve hole through a threaded screw, so that the oblique abutting edge well abuts against the frame rod of a screen support, and then the position of the push rod on the rod sleeve is fixed by locking the directional locking pin, and lubricating oil is injected through an oil nozzle. Since the cross-section of the oil nozzle and the annular groove is in the shape of a spoon, the connection between the oil nozzle and the annular groove is a two-way flow path, thereby achieving a fast and good lubrication effect on the push rod and the sleeve hole; the locking mechanism is used to reduce the wear of the contact surface of the push rod and the screen support due to long-term abutment between the push rod and the screen support, resulting in a large error in the ratio of the push rod feed adjustment to the screen hole aperture.

Description

Technical Field

[0001] The invention relates to the technical field of plastic crushing, and in particular to a locking mechanism for a plastic crushing device. Background Art

[0002] The application of screw rams (or spiral rams) in plastic crushing devices is mainly related to the process of pushing, guiding and separating plastic materials. Plastic crushers are used to break large pieces of plastic materials (such as plastic bottles, plastic pipes, waste plastic products, etc.) into smaller particles. In this process, the role of screw rams is crucial, especially in terms of material transmission, separation and ensuring stable operation of the equipment.

[0003] However, the screw top rod in the prior art is prone to deviation and loosening during the vibration generated by the operation of the crushing device, which will cause a large error in the size of the plastic particles. In addition, the traditional screw top rod is in contact with the screen support for a long time, and the contact surface of the two is worn. Over time, there is a large error in the ratio of the screw feed adjustment to the screen hole diameter.

[0004] Therefore, we provide a locking mechanism for a plastic crushing device to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The problem to be solved by the present invention is to provide a locking mechanism for a plastic crushing device to overcome the defects in the prior art.

[0007] (II) Technical solution

[0008] In order to solve the technical problem, the present invention provides a locking mechanism for a plastic crushing device, comprising a rod sleeve, the rod sleeve is arranged in a ring-shaped cross, an upper rod portion is arranged at one end of the rod sleeve, and a lower rod portion is arranged at the other end of the rod sleeve;

[0009] A hand wheel, to which a threaded screw is fixedly connected;

[0010] A push rod, one end of which is provided with an inclined abutment, a sleeve hole penetrating the upper rod portion and the lower rod portion is provided on the rod sleeve, the push rod is slidably connected to the sleeve hole, an annular groove is provided on the inner wall of the sleeve hole, and an oil nozzle connected to the annular groove is provided in the middle of the rod sleeve.

[0011] A directional locking pin, wherein a bolt hole communicating with the sleeve hole is provided in the middle of the rod sleeve, and the bolt hole is threadedly connected with the directional locking pin;

[0012] A matching block, a guide groove is provided on the push rod, and the matching block is located between the guide groove and the bolt hole.

[0013] The conventional screw mandrel is prone to displacement and loosening during the vibration of the crushing device, which will lead to a large error in the size of the plastic particles. In addition, the conventional screw mandrel is in long-term contact with the screen support, and the contact surface of the two is worn. Over time, there is a large error in the ratio of the screw feed adjustment to the screen hole diameter. The hand wheel of the present invention drives the mandrel to move along the axial direction of the sleeve hole through the threaded screw, so that the oblique side is in good contact with the frame rod of the screen support, and then the position of the mandrel on the rod sleeve is fixed by locking the locking pin, and the lubricating oil is injected through the oil nozzle, and the lubricating oil flows to the annular groove through the oil nozzle. Since the cross section of the oil nozzle and the annular groove is The hand wheel is spoon-shaped, and the axial direction of the oil nozzle coincides with the radial direction of the annular groove, so that the connection between the oil nozzle and the annular groove is a two-way flow path, so that the lubricating oil can flow and merge quickly and evenly along the two semi-arc oil paths of the annular groove, thereby having a good lubrication effect on the push rod and the sleeve hole; an external reduction motor is connected to the central shaft of the hand wheel, and the reduction motor is connected to the controller. The number of hand wheel rotations can be preset through the controller, so that the reduction motor drives the push rod to automatically feed through the hand wheel, so as to reduce the long-term contact between the push rod and the screen bracket, resulting in wear on the contact surface of the two, resulting in a large error in the ratio of the push rod feed adjustment to the screen hole diameter.

[0014] By turning the hand wheel, the push rod is moved into the sleeve hole, and the oblique side of the push rod is separated from the screen bracket, so that the bracket can be turned over, which is convenient for the screen replacement, maintenance and cleaning of the screen bracket; after the screen is installed in place, the bracket is turned over to a fixed position, and the hand wheel is turned in the opposite direction to move the push rod out of the sleeve hole, and the oblique side of the push rod cooperates with the screen bracket to fix the screen bracket, so that the plastic crushing device can operate normally.

[0015] Furthermore, the threaded screw is threadedly connected to the threaded hole of the push rod.

[0016] Furthermore, the oblique abutment edge cooperates with a support rod of a screen support in the plastic crushing device.

[0017] Furthermore, a limiting step is provided at the port of the upper rod portion, and an annular convexity is provided on the threaded screw near the handwheel, and the annular convexity of the threaded screw matches with the limiting step of the upper rod portion.

[0018] Furthermore, a plurality of fixing holes are provided in a circumferential array on the rod sleeve, and the fixing holes penetrate along the axial direction of the rod sleeve.

[0019] Furthermore, the oil nozzle is located between two of the fixing holes, and the oil nozzle passes through the rod sleeve in a radial direction.

[0020] Furthermore, the cross-section of the oil nozzle and the annular groove is spoon-shaped, and the axial direction of the oil nozzle coincides with the radial direction of the annular groove.

[0021] Furthermore, the bolt hole and the oil nozzle on the rod sleeve are arranged opposite to each other.

[0022] Furthermore, the annular groove is located at the lower end of the bolt hole.

[0023] Furthermore, when the push rod is in the retracted state, the bottom end of the guide groove is nearly parallel to a groove wall on one side of the bolt hole.

[0024] (III) Beneficial effects

[0025] Compared with the prior art, the locking mechanism for a plastic crushing device provided by the present invention has the following beneficial effects:

[0026] 1. An oblique abutment is arranged at one end of the push rod of the present invention, a sleeve hole which passes through the upper rod portion and the lower rod portion is arranged on the rod sleeve, the push rod is slidably connected with the sleeve hole, an annular groove is arranged on the inner wall of the sleeve hole, and an oil nozzle which is connected with the annular groove is arranged in the middle part of the rod sleeve; the traditional screw push rod is easy to deviate and loosen during the vibration generated by the operation of the crushing device. The hand wheel of the present invention drives the push rod to move along the axial direction of the sleeve hole through the threaded screw, so that the oblique abutment is well abutted against the frame rod of the screen bracket, and then the locking pin is locked to achieve the effect of fixing the push rod well, thereby reducing the displacement of the push rod due to the vibration of the equipment, resulting in a large error between the aperture of the sieve hole and the preset aperture of the discharged particles.

[0027] 2. The present invention injects lubricating oil through an oil nozzle, and the lubricating oil flows to the annular groove through the oil nozzle. Since the cross-section of the oil nozzle and the annular groove is spoon-shaped, the axial direction of the oil nozzle coincides with the radial direction of the annular groove, so that the connection between the oil nozzle and the annular groove is a two-way flow path, so that the lubricating oil can flow and merge quickly and evenly along the two semi-arc oil paths of the annular groove, thereby having a good lubrication effect on the push rod and the sleeve hole; an external reduction motor is connected to the central rotating shaft of the handwheel, and the reduction motor is connected to the controller. The number of rotations of the handwheel can be preset through the controller, so that the reduction motor drives the push rod to automatically feed through the handwheel, so as to reduce the large error in the ratio of the push rod feed adjustment to the sieve hole aperture caused by the long-term contact between the push rod and the screen bracket and the wear of the contact surface of the two.

[0028] 3. The present invention rotates the hand wheel to move the push rod into the sleeve hole, and the oblique side of the push rod is separated from the screen bracket, so that the bracket can be flipped over, which is convenient for the screen replacement, maintenance, cleaning and other operations of the screen bracket; after the screen is installed in place, the bracket is flipped to a fixed position, and the hand wheel is rotated in the opposite direction to move the push rod out of the sleeve hole, and the oblique side of the push rod cooperates with the screen bracket to fix the screen bracket, so that the plastic crushing device can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a first stereoscopic view of a locking mechanism for a plastic crushing device of the present invention;

[0031] Figure 2 A second stereoscopic view of a locking mechanism for a plastic crushing device according to the present invention;

[0032] Figure 3 A bottom view of a locking mechanism for a plastic crushing device according to the present invention;

[0033] Figure 4 This is a front view of a locking mechanism for a plastic crushing device of the present invention;

[0034] Figure 5 An exploded view of a locking mechanism for a plastic crushing device of the present invention;

[0035] Figure 6 It is a schematic diagram showing another perspective of an exploded view of a locking mechanism for a plastic crushing device of the present invention;

[0036] Figure 7 It is a structural schematic diagram of a screw sleeve of a locking mechanism for a plastic crushing device of the present invention;

[0037] Figure 8 It is a cross-sectional view of a locking mechanism for a plastic crushing device of the present invention;

[0038] The corresponding component names of the various reference numerals in the figure are:

[0039] 1. Rod sleeve; 101. Lower rod; 102. Upper rod; 103. Fixing hole; 104. Oil nozzle; 1041. Annular groove; 105. Sleeve hole; 106. Limiting step; 107. Bolt hole;

[0040] 2. Hand wheel; 201. Threaded screw; 202. Annular cam;

[0041] 3. ejector rod; 301. guide groove; 302. oblique abutment edge; 303. threaded hole;

[0042] 4. Directional locking pin;

[0043] 5. Matching blocks. DETAILED DESCRIPTION

[0044] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0046] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0047] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0048] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0049] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0050] See also Figures 1 to 8 The present invention provides a locking mechanism for a plastic crushing device, comprising a rod sleeve 1, the rod sleeve 1 is arranged in a ring-shaped cross shape, an upper rod portion 102 is arranged at one end of the rod sleeve 1, and a lower rod portion 101 is arranged at the other end of the rod sleeve 1;

[0051] A hand wheel 2, to which a threaded screw 201 is fixedly connected;

[0052] The push rod 3 has an oblique abutment 302 at one end, and a sleeve hole 105 penetrating the upper rod portion 102 and the lower rod portion 101 is provided on the rod sleeve 1. The push rod 3 is slidably connected with the sleeve hole 105, and an annular groove 1041 is provided on the inner wall of the sleeve hole 105. An oil nozzle 104 connected with the annular groove 1041 is provided in the middle of the rod sleeve 1; the traditional screw push rod 3 is prone to deviation and loosening during the vibration generated by the operation of the crushing device, which will cause a large error in the size of the plastic particles, and the traditional screw push rod 3 is in long-term contact with the screen bracket, and the contact surface of the two is worn. Over time, there is a situation where the error corresponding to the screw feed adjustment and the screen hole aperture ratio is large; the hand wheel 2 of the present invention drives the push rod 3 to move along the axial direction of the sleeve hole 105 through the threaded screw 201, so that the oblique abutment 302 is well in contact with the frame rod of the screen bracket, and then the push rod 3 is fixed on the rod sleeve 1 by locking the directional locking pin 4. The lubricating oil is injected into the position through the oil nozzle 104, and the lubricating oil flows to the annular groove 1041 through the oil nozzle 104. Since the cross-section of the oil nozzle 104 and the annular groove 1041 is spoon-shaped, the axial direction of the oil nozzle 104 coincides with the radial direction of the annular groove 1041, so that the connection between the oil nozzle 104 and the annular groove 1041 is a two-way flow path, so that the lubricating oil can flow and merge quickly and evenly along the two semi-arc oil paths of the annular groove 1041, thereby having a good lubrication effect on the push rod 3 and the sleeve hole 105; an external reduction motor is connected to the central rotating shaft of the handwheel 2, and the reduction motor is connected to the controller. The number of rotations of the handwheel can be preset through the controller, so that the reduction motor drives the push rod 3 to automatically feed through the handwheel 2, so as to reduce the large error in the feed adjustment of the push rod 3 and the corresponding ratio of the sieve hole aperture caused by the long-term contact between the push rod 3 and the screen bracket and the wear of the contact surface between the two.

[0053] Directional locking pin 4, a bolt hole 107 communicating with the sleeve hole 105 is opened in the middle of the rod sleeve 1, and the bolt hole 107 is threadedly connected with the directional locking pin 4;

[0054] The matching block 5 and the push rod 3 are provided with a guide groove 301 , and the matching block 5 is located between the guide groove 301 and the bolt hole 107 .

[0055] See also Figures 2 to 8 The threaded screw 201 is threadedly connected with the threaded hole 303 of the top rod 3, the oblique edge 302 cooperates with the frame rod of the screen bracket in the plastic crushing device, a limiting step 106 is provided at the port of the upper rod 102, and an annular convex 202 is provided on the threaded screw 201 near the hand wheel 2, and the annular convex 202 of the threaded screw 201 cooperates with the limiting step 106 of the upper rod 102.

[0056] See also Figures 3 to 8A plurality of fixing holes 103 are provided in a circular array on the rod sleeve 1, and the fixing holes 103 are passed through in the axial direction of the rod sleeve 1, and the oil nozzle 104 is located between two of the fixing holes 103, and the oil nozzle 104 is passed through in the radial direction of the rod sleeve 1, and the cross-section of the oil nozzle 104 and the annular groove 1041 is spoon-shaped, and the axial direction of the oil nozzle 104 coincides with the radial direction of the annular groove 1041, and the bolt hole 107 on the rod sleeve 1 and the oil nozzle 104 are arranged opposite to each other, and the annular groove 1041 is located at the lower end of the bolt hole 107, and when the push rod 3 is in the storage state, the bottom end of the guide groove 301 is nearly parallel to the groove wall on one side of the bolt hole 107.

[0057] This embodiment provides a locking mechanism for a plastic crushing device:

[0058] One end of the push rod 3 of the present invention is provided with an oblique abutment 302, and a sleeve hole 105 penetrating the lower rod portion 101 and the upper rod portion 102 is provided on the rod sleeve 1, the push rod 3 is slidably connected with the sleeve hole 105, and an annular groove 1041 is provided on the inner wall of the sleeve hole 105, and an oil nozzle 104 connected with the annular groove 1041 is provided in the middle of the rod sleeve 1; the traditional screw push rod 3 is prone to deviation and loosening during the vibration of the crushing device during operation. The hand wheel 2 of the present invention drives the push rod 3 to move along the axial direction of the sleeve hole 105 through the threaded screw 201, so that the oblique abutment 302 is well against the frame rod of the screen bracket, and then the directional locking pin 4 is locked to achieve the effect of fixing the push rod 3 well, thereby reducing the displacement of the push rod 3 due to equipment vibration, resulting in a large error between the sieve hole diameter and the preset aperture of the discharged particles;

[0059] Lubricating oil is injected through the oil nozzle 104, and the lubricating oil flows to the annular groove 1041 through the oil nozzle 104. Since the cross-section of the oil nozzle 104 and the annular groove 1041 is spoon-shaped, the axial direction of the oil nozzle 104 coincides with the radial direction of the annular groove 1041, so that the connection between the oil nozzle 104 and the annular groove 1041 is a two-way flow path, so that the lubricating oil can flow and converge quickly and evenly along the two semi-arc oil paths of the annular groove 1041, thereby having a good lubrication effect on the push rod 3 and the sleeve hole 105; an external reduction motor is connected to the central rotating shaft of the handwheel 2, and the reduction motor is connected to the controller. The number of rotations of the handwheel can be preset through the controller, so that the reduction motor drives the push rod 3 to automatically feed through the handwheel 2, so as to reduce the large error in the feed adjustment of the push rod 3 and the corresponding ratio of the sieve hole aperture caused by the long-term contact between the push rod 3 and the screen bracket and the wear of the contact surface between the two.

[0060] By turning the hand wheel 2, the push rod 3 is moved into the sleeve hole 105, and the oblique side 302 of the push rod 3 is separated from the screen bracket, so that the bracket can be turned over, which is convenient for the screen replacement, maintenance and cleaning of the screen bracket; after the screen is installed in place, the bracket is turned over to a fixed position, and the hand wheel 2 is turned in the opposite direction to move the push rod 3 out of the sleeve hole 105, and the oblique side 302 of the push rod 3 cooperates with the screen bracket to fix the screen bracket, so that the plastic crushing device can operate normally.

[0061] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0062] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A locking mechanism for a plastic crushing device, characterized in that: include: A rod sleeve (1), the rod sleeve (1) being arranged in an annular cross shape, a lower rod portion (101) being arranged at one end of the rod sleeve (1), and an upper rod portion (102) being arranged at the other end of the rod sleeve (1); A hand wheel (2), wherein a threaded screw (201) is fixedly connected to the hand wheel (2); A push rod (3), one end of the push rod (3) is provided with an oblique abutment edge (302), the oblique abutment edge (302) cooperates with a frame rod of a screen support in the plastic crushing device, the rod sleeve (1) is provided with a sleeve hole (105) penetrating the lower rod portion (101) and the upper rod portion (102), the push rod (3) is slidably connected to the sleeve hole (105), the inner wall of the sleeve hole (105) is provided with an annular groove (1041), and the middle part of the rod sleeve (1) is provided with an oil nozzle (104) connected with the annular groove (1041); A directional locking pin (4), wherein a bolt hole (107) communicating with the sleeve hole (105) is provided in the middle of the rod sleeve (1), and the bolt hole (107) is threadedly connected to the directional locking pin (4); A matching block (5), wherein a guide groove (301) is formed on the push rod (3), and the matching block (5) is located between the guide groove (301) and the bolt hole (107).

2. The locking mechanism for a plastic crushing device according to claim 1, characterized in that: The threaded screw rod (201) is threadedly connected to the threaded hole (303) of the push rod (3).

3. The locking mechanism for a plastic crushing device according to claim 1, characterized in that: A limiting step (106) is provided at the end of the upper rod portion (102), and an annular locking protrusion (202) is provided on the threaded screw (201) near the hand wheel (2), and the annular locking protrusion (202) of the threaded screw (201) cooperates with the limiting step (106) of the upper rod portion (102).

4. The locking mechanism for a plastic crushing device according to claim 1, characterized in that: A plurality of fixing holes (103) are arranged in a circumferential array on the rod sleeve (1), and the fixing holes (103) penetrate along the axial direction of the rod sleeve (1).

5. The locking mechanism for a plastic crushing device according to claim 4, characterized in that: The oil nozzle (104) is located between two of the fixing holes (103), and the oil nozzle (104) passes through the rod sleeve (1) in a radial direction.

6. The locking mechanism for a plastic crushing device according to claim 1, characterized in that: The cross-section of the oil nozzle (104) and the annular groove (1041) is spoon-shaped, and the axial direction of the oil nozzle (104) coincides with the radial direction of the annular groove (1041).

7. The locking mechanism for a plastic crushing device according to claim 1, characterized in that: The bolt hole (107) and the oil nozzle (104) on the rod sleeve (1) are arranged opposite to each other.

8. The locking mechanism for a plastic crushing device according to claim 7, characterized in that: The annular groove (1041) is located at the lower end of the bolt hole (107).

9. The locking mechanism for a plastic crushing device according to claim 1, characterized in that: When the push rod (3) is in the retracted state, the bottom end of the guide groove (301) is substantially parallel to a groove wall on one side of the bolt hole (107).

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