Hand-held portable iron remover

Abstract

The utility model discloses a hand -operated convenient de -ironing device, including support, rotating component and magnet bar, rotating component includes the drum and cover body, and the drum rotation sets up on the support, and the rotation axis of drum is horizontal arrangement, and the drum has the inlet and outlet, and the cover body detachably installs on the inlet and outlet, magnet bar detachably installs on the outer circumferential surface of drum, the utility model discloses through the drum of closed and rotatable and the cooperation of the magnet bar of setting in the drum outside and detachable, realizes the single -person processing small -batch material to and avoids the risk of introducing magnetic particle again in the stirring process.

Description

Technical Field

[0001] This utility model relates to the field of powder material preparation technology, and in particular to a hand-cranked convenient iron remover. Background Technology

[0002] Most existing iron separators used for positive electrode materials are large in size and can only process large batches, not small batches. This means that the current method can only be used to manually stir and adsorb the iron with magnetic rods, which may introduce magnetic particles again during the stirring process. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a hand-cranked, convenient iron remover.

[0004] The technical solution of this utility model is as follows: it includes a support, a rotating assembly, and a magnetic rod. The rotating assembly includes a roller and a cover. The roller is rotatably mounted on the support. The rotation axis of the roller is horizontal. The roller has an inlet and an outlet. The cover is detachably mounted on the inlet and outlet. The magnetic rod is detachably mounted on the outer circumferential surface of the roller.

[0005] Furthermore, the inlet and outlet are located on the outer circumferential surface of the roller.

[0006] Furthermore, the bracket has an upper-opening mounting cavity, the sidewall of which communicates with the outside of the bracket, the roller is mounted on the top of the bracket, and the bottom of the roller is located inside the mounting cavity.

[0007] Furthermore, the hand-cranked portable iron remover also includes positioning pins, and the end faces on both sides of the roller are provided with multiple first positioning holes and multiple second positioning holes.

[0008] The roller is capable of rotating between a first position and a second position;

[0009] In the first position, the inlet and outlet face upward, and each of the multiple first positioning holes is equipped with a detachable positioning pin, which cooperates with the bracket to prevent the roller from rotating;

[0010] In the second position, the inlet and outlet face downwards, and each of the multiple second positioning holes is equipped with a detachable positioning pin, which cooperates with the bracket to prevent the roller from rotating.

[0011] Furthermore, a hand crank is connected to one end face of the roller, and the hand crank can drive the roller to rotate relative to the bracket.

[0012] Furthermore, the bracket is equipped with two bearing assemblies, which are spaced apart along the left-right direction of the bracket. The end faces of the left and right sides of the roller are provided with rotating parts, and the two rotating parts are respectively connected to the two bearing assemblies.

[0013] Furthermore, the hand-cranked portable iron remover also includes a fixing component, wherein the outer circumferential surface of the drum has a groove extending along the axial direction of the drum, and the magnetic rod is detachably mounted on the groove via the fixing component.

[0014] Furthermore, the fixing element is a cable tie, which is used to secure the outside of the roller and fix the magnetic rod to the groove.

[0015] Furthermore, the fixing member has a receiving cavity, the fixing member is inserted into the groove, the fixing member is snapped into the side wall of the groove, and the magnetic rod is located in the receiving cavity.

[0016] Furthermore, the two side walls of the groove have protrusions;

[0017] The fastener includes:

[0018] A fixing part is located outside the roller. The fixing part is connected to a locking block. The locking block is located inside the receiving cavity. The locking block has a fixing groove. The magnetic rod is engaged with the fixing groove and located inside the receiving cavity.

[0019] Two insertion parts are provided, one end of each insertion part is fixedly connected to the side of the fixing part near the outer wall of the roller, the two insertion parts are spaced apart along the width direction of the fixing part, the two insertion parts surround to form the receiving cavity, and each of the two insertion parts has a recess on the side away from each other, the two insertion parts are inserted into the recess, and the protrusion is engaged with the recess.

[0020] The hand-cranked portable iron remover according to this utility model has at least the following technical effects:

[0021] 1. By using a closed and rotatable drum in conjunction with a detachable magnetic rod located outside the drum, it is possible to process small batches of materials by a single person and avoid the risk of introducing magnetic particles again during the mixing process.

[0022] 2. By engaging with multiple first positioning holes or multiple second positioning holes through the positioning pin, when the roller rotates to the first position or the second position, the positioning pin can engage with the bracket to block the roller from rotating (clockwise rotation and counterclockwise rotation), so that the roller will not rotate when feeding or discharging materials;

[0023] 3. The magnetic rod is fixed to the groove by the fastener, making it easy to install and remove the magnetic rod.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] Additional aspects and advantages of this utility model will become apparent and readily understood from the description of the technical solution in conjunction with the following drawings, wherein:

[0026] Figure 1 A schematic diagram of a hand-cranked portable iron separator;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of the fixing member in the first embodiment that fixes the magnetic rod to the roller;

[0029] Figure 4 This is a schematic diagram of the structure of the fixing member in the second embodiment that fixes the magnetic rod to the roller;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0031] Figure 6 This is a schematic diagram of the connection between the fixing member and the magnetic rod in the second embodiment;

[0032] Figure 7 This is a schematic diagram of the structure where the roller in the first position is mounted on the bracket;

[0033] Figure 8 This is a schematic diagram of the structure where the roller in the second position is mounted on the bracket;

[0034] Figure 9 This is a top view of the roller mounted on the bracket.

[0035] Reference numerals: bracket 100, base 101, anchor screw 102, horizontal bar 103, mounting cavity 110, bearing assembly 120, rotating assembly 200, inlet / outlet 201, first positioning hole 202, second positioning hole 203, roller 210, groove 211, protrusion 2111, cover 220, hand crank 230, rotating part 240, magnetic rod 300, positioning pin 400, fixing part 500, accommodating cavity 510, fixing part 520, locking block 521, fixing groove 522, insertion part 530, recess 531. Detailed Implementation

[0036] The technical solution of this utility model is described in detail below. Examples of the technical solution are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The technical solution described below with reference to the accompanying drawings is exemplary and is only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] Reference Figure 1 As shown, the hand-cranked portable iron remover provided in the embodiment of this utility model includes a support 100, a rotating assembly 200, and a magnetic rod 300. The rotating assembly 200 includes a roller 210 and a cover 220. The roller 210 is rotatably mounted on the support 100, and the rotation axis of the roller 210 is horizontally set. The roller 210 has an inlet and outlet 201, and the cover 220 is detachably mounted on the inlet and outlet 201. The magnetic rod 300 is detachably mounted on the outer circumferential surface of the roller 210.

[0041] By using a closed and rotatable drum 210 in conjunction with a detachable magnetic rod 300 located outside the drum 210, small batches of materials can be processed by a single person, and the risk of introducing magnetic particles again during the mixing process can be avoided.

[0042] When iron removal is required, the magnetic rod 300 is installed on the outer circumference of the drum 210, the cover 220 is removed from the inlet / outlet 201, the material enters the drum 210 through the inlet / outlet 201, and the cover 220 is then installed on the inlet / outlet 201. The worker drives the drum 210 to rotate relative to the support 100. During the rotation of the drum 210, the magnetic rod 300 adsorbs magnetic particles in the material through the side wall of the drum 210, thereby achieving iron removal from the material.

[0043] When it is necessary to remove the demagnetized material, the first container for receiving the material is placed below the roller 210. The worker drives the roller 210 to rotate so that the inlet / outlet 201 is directly above the first container. The worker removes the cover 220 from the inlet / outlet 201. The demagnetized material is discharged from the inlet / outlet 201 and falls onto the first container.

[0044] After the material is completely discharged, when it is necessary to remove the magnetic particles, the second container that receives the magnetic particles is placed below the roller 210. The worker removes the magnetic rod 300 from the roller 210. The magnetic rod 300 no longer attracts the magnetic particles in the roller 210. The magnetic particles are discharged from the inlet / outlet 201 and fall onto the second container.

[0045] It is conceivable that both materials and magnetic particles can be discharged from the drum 210 by gravity. Other discharge methods can also be adopted while ensuring that materials and magnetic particles can be discharged smoothly.

[0046] Specifically, the roller 210 is made of a non-metallic material, such as polytetrafluoroethylene or other materials, to avoid friction between the material and the roller wall, thereby preventing the generation of new magnetic particles; the support 100 is made of stainless steel or other materials, to prevent the magnetic rod 300 from being attracted to the support 100 during the rotation of the roller 210.

[0047] As one can imagine, bracket 100 can be fixed to the ground or other places.

[0048] Specifically, such as Figure 1 As shown, the hand-cranked portable iron remover also includes a base 101, and a bracket 100 is fixed to the base 101 by anchor screws 102. The anchor screws 102 are used to fix the bracket 100, which facilitates the adjustment of the position of the bracket 100 and the installation and removal of the bracket 100.

[0049] Specifically, the base 101 is made of cast iron or other materials to ensure that the base 101 has sufficient self-weight to provide support and fixation.

[0050] Furthermore, such as Figure 1As shown, the inlet and outlet 201 is located on the outer circumferential surface of the roller 210. When the roller 210 rotates to the point where the inlet and outlet 201 faces downward, the material is located at the inlet and outlet 201, which facilitates the discharge of material or magnetic particles.

[0051] While ensuring the discharge of materials or magnetic particles, the inlet / outlet 201 can also be located at other positions on the roller 210.

[0052] Furthermore, such as Figure 1 As shown, the bracket 100 has an upper-opening mounting cavity 110, the side wall of the mounting cavity 110 is in communication with the outside of the bracket 100, the roller 210 is mounted on the top of the bracket 100, and the bottom of the roller 210 is located inside the mounting cavity 110.

[0053] By providing the mounting cavity 110, the space inside the bracket 100 can be fully utilized, resulting in a small space occupied by the iron remover and convenient access to the first and second containers.

[0054] It can be conceivable that the sidewall of the mounting cavity 110 is connected to the outside of the bracket 100, meaning that at least one sidewall of the mounting cavity 110 is connected to the outside of the bracket 100, or all the sidewalls of the mounting cavity 110 are connected to the outside of the bracket 100. Specifically, the bracket 100 can be a frame, and the sidewalls of the frame or all the sidewalls of the frame are connected to the outside of the frame. Of course, it can be all of the frame or only a small part of it. The connection between the sidewalls of the frame and the outside of the frame can be determined according to the specific loading and unloading situation.

[0055] Understandably, the sidewall of the mounting cavity 110 may not be in communication with the outside of the bracket 100. In this case, the first and second containers can be placed or removed through the upper opening of the mounting cavity 110; however, this method may be less convenient than placing or removing them from the sidewall.

[0056] Furthermore, such as Figure 1 , 2 As shown, it also includes a positioning pin 400, and multiple first positioning holes 202 and multiple second positioning holes 203 are provided on the end faces of the left and right sides of the roller 210.

[0057] Roller 210 is capable of rotating between a first position and a second position;

[0058] like Figure 1 , 2 As shown in Figure 7, in the first position, the inlet and outlet 201 faces upward, and multiple first positioning holes 202 are equipped with detachable positioning pins 400. The positioning pins 400 cooperate with the bracket 100 to prevent the roller 210 from rotating.

[0059] like Figure 8As shown, in the second position, the inlet / outlet 201 faces downward, and multiple second positioning holes 203 are equipped with detachable positioning pins 400. The positioning pins 400 cooperate with the bracket 100 to prevent the roller 210 from rotating.

[0060] By engaging the positioning pin 400 with multiple first positioning holes 202 or multiple second positioning holes 203, when the roller 210 rotates to the first position or the second position, the positioning pin 400 can engage with the bracket 100 to block the rotation of the roller 210 (clockwise rotation and counterclockwise rotation), so that the roller 210 will not rotate when feeding or discharging materials.

[0061] like Figure 1 , 2 As shown in Figure 7, when the worker drives the roller 210 to the first position, the inlet and outlet 201 faces upward. The worker installs positioning pins 400 in multiple first positioning holes 202. The positioning pins 400 are used to restrict the rotation of the roller 210 during the feeding process. The worker then removes the cover 220 from the inlet and outlet 201. The worker then pours the material into the inlet and outlet 201 by hand or external equipment. After pouring, the cover 220 is installed on the inlet and outlet 201 to seal the roller 210. The positioning pins 400 are then removed. At this time, the roller 210 can rotate relative to the bracket 100.

[0062] When iron removal is required, the worker drives the drum 210 to rotate. During the rotation of the drum 210, the magnetic rod 300 attracts magnetic particles from the material.

[0063] After iron removal is complete, as follows Figure 8 As shown, when the worker drives the drum 210 to the second position, the inlet and outlet 201 faces downward. The worker installs positioning pins 400 in multiple second positioning holes 203. The positioning pins 400 are used to restrict the rotation of the drum 210 during the feeding process. The worker then removes the cover 220 from the inlet and outlet 201. The material after iron removal is discharged through the inlet and outlet 201, while the magnetic particles in the material are fixed on the inner wall of the drum 210 under the action of the magnetic rod 300.

[0064] When it is necessary to release the magnetic particles, the worker removes the magnetic rod 300 from the drum 210. Since the magnetic rod 300 no longer attracts the magnetic particles inside the drum 210, the magnetic particles are discharged through the inlet / outlet 201.

[0065] Specifically, such as Figure 7As shown, the end faces of the left and right sides of the roller 210 are provided with two first positioning holes 202 and two second positioning holes 203. The two first positioning holes 202 and two second positioning holes 203 are distributed in a rectangular interval. When the roller 210 rotates to the first position, the two first positioning holes 202 are located below the two second positioning holes 203. The bracket 100 includes a horizontal bar 103, and the roller 210 is rotatably mounted on the horizontal bar 103.

[0066] like Figure 7 As shown, when feeding is required, the roller 210 rotates to the first position, the inlet and outlet 201 faces upward, the two first positioning holes 202 are both located above the horizontal bar 103 and both are equipped with positioning pins 400. Part of the two positioning pins 400 are placed on the upper end surface of the horizontal bar 103, thereby the horizontal bar 103 blocks the positioning pins 400 from moving with the roller 210, so that the roller 210 cannot rotate in the clockwise or counterclockwise direction;

[0067] like Figure 8 As shown, when material needs to be discharged, the roller 210 rotates to the second position, the inlet and outlet 201 faces downward, and the two second positioning holes 203 are both located below the horizontal bar 103 and are both equipped with positioning pins 400. Part of the two positioning pins 400 is placed below the lower end face of the horizontal bar 103, thereby the horizontal bar 103 blocks the positioning pins 400 from moving with the roller 210, so that the roller 210 cannot rotate in the clockwise or counterclockwise direction.

[0068] Furthermore, such as Figure 1 As shown, a hand crank 230 is connected to one end face (right end face) of the roller 210, and the hand crank 230 can drive the roller 210 to rotate relative to the bracket 100.

[0069] The hand crank 230 allows workers to easily drive the roller 210 to rotate.

[0070] Furthermore, such as Figure 1 , 2 As shown in Figure 9, the bracket 100 is equipped with two bearing assemblies 120. The two bearing assemblies 120 are spaced apart along the left and right directions of the bracket 100. The end faces of the roller 210 on the left and right sides are provided with rotating parts 240. The two rotating parts 240 are respectively connected to the two bearing assemblies 120.

[0071] The rotating part 240 of the roller 210 is supported by the bearing assembly 120 to ensure the stability of the rotation of the roller 210.

[0072] Specifically, the bearing assembly 120 includes a bearing and a bearing housing. The bearing housing is mounted on the top of the horizontal bar 103, the bearing is mounted on the bearing housing, and the rotating part 240 is inserted into the bearing.

[0073] Specifically, the rotating part 240 is made of stainless steel to ensure that it has sufficient support strength. While ensuring sufficient support strength, the rotating part 240 can also be made of other materials.

[0074] Furthermore, such as Figure 3 As shown, it also includes a fixing member 500. The outer circumferential surface of the roller 210 has a groove 211 extending along the axial direction of the roller 210. The magnetic rod 300 is detachably mounted on the groove 211 by means of the fixing member 500.

[0075] The magnetic rod 300 is fixed to the groove 211 by the fastener 500, which makes it easy to install and remove the magnetic rod 300.

[0076] It is conceivable that there can be multiple grooves 211 and magnetic rods 300, with multiple grooves 211 spaced apart along the circumference of the roller 210, and the positions of multiple magnetic rods 300 corresponding one-to-one with the positions of multiple grooves 211.

[0077] By incorporating multiple magnetic rods 300, the combined action of these rods enhances the adsorption effect on magnetic particles.

[0078] While ensuring the adsorption effect, the multiple grooves 211 can also be set in other ways.

[0079] Furthermore, such as Figure 3 As shown, the fixing member 500 is a cable tie, which is bound to the outside of the roller 210 and fixes the magnetic rod 300 to the groove 211.

[0080] Cable ties are used to fix the magnetic rod 300 to the groove 211, which can fix the small magnetic rod 300 and make the structure of the fastener 500 and the magnetic rod 300 simple.

[0081] Furthermore, such as Figure 4 , 5 As shown, the fixing member 500 has a receiving cavity 510, the fixing member 500 is inserted into the groove 211, the fixing member 500 is snapped into the side wall of the groove 211, and the magnetic rod 300 is located in the receiving cavity 510.

[0082] The fixing member 500 has a receiving cavity 510, which facilitates the receiving of a large magnetic rod 300, and the fixing member 500 can be inserted into the groove 211 to avoid the roller 210 having a large volume in the radial direction.

[0083] Furthermore, such as Figure 5 As shown, the two side walls of the groove 211 have protrusions 2111;

[0084] like Figure 5 , 6 As shown, the fastener 500 includes:

[0085] The fixing part 520 is located outside the roller 210. The fixing part 520 is connected to the locking block 521. The locking block 521 is located inside the receiving cavity 510. The locking block 521 has a fixing groove 522. The magnetic rod 300 is engaged with the fixing groove 522 and located inside the receiving cavity 510.

[0086] Two insertion portions 530 are provided, one end of which is fixedly connected to the side of the fixing portion 520 near the outer wall of the roller 210. The two insertion portions 530 are spaced apart along the width direction of the fixing portion 520. The two insertion portions 530 enclose a receiving cavity 510. Each of the two insertion portions 530 has a recess 531 on the side away from each other. The two insertion portions 530 are inserted into the recess 211, and the protrusion 2111 is engaged with the recess 531.

[0087] The fastener 500 adopts the above structure, and the magnetic rod 300 can be pre-fixed on the fastener 500. When installing the magnetic rod 300, simply insert the insertion part 530 of the fastener 500 into the groove 211, so that the protrusion 2111 and the recess 531 are engaged and connected. When disassembling the magnetic rod 300, simply grasp the fastener 520 to disengage the recess 531 from the engagement of the protrusion 2111, making it easy to install and remove the magnetic rod 300.

[0088] Specifically, such as Figure 5 , 6 As shown, the fixing groove 522 includes two snap-fit ​​parts spaced apart along the width direction of the fixing part 520, and the magnetic rod 300 snaps onto the two snap-fit ​​parts.

[0089] The working process of this utility model:

[0090] like Figure 1 , 2 As shown in Figure 7, during feeding: when the worker drives the roller 210 to the first position, the inlet and outlet 201 faces upward. The worker installs positioning pins 400 in both first positioning holes 202. The positioning pins 400 restrict the rotation of the roller 210. The worker then removes the cover 220 from the inlet and outlet 201. The worker then pours the material into the inlet and outlet 201 by hand or external equipment. After pouring, the cover 220 is installed on the inlet and outlet 201 to seal the roller 210. The positioning pins 400 are then removed. At this time, the roller 210 can rotate relative to the bracket 100.

[0091] During iron removal: the worker drives the drum 210 to rotate at a constant speed several times by hand crank 230. During the rotation of the drum 210, the magnetic rod 300 attracts the magnetic particles in the material and fixes the magnetic particles to the inner wall of the drum 210.

[0092] When discharging: such as Figure 8As shown, when the worker drives the roller 210 to the second position, the inlet and outlet 201 faces downward. The worker installs positioning pins 400 in both second positioning holes 203. The positioning pins 400 restrict the rotation of the roller 210. The worker places the first container for receiving materials under the roller 210 and then removes the cover 220 from the inlet and outlet 201. The material after iron removal is discharged through the inlet and outlet 201 and falls into the first container. The magnetic particles in the material are fixed to the inner wall of the roller 210 under the action of the magnetic rod 300.

[0093] When it is necessary to release the magnetic particles, the second container for receiving the magnetic particles is placed below the roller 210. The worker removes the cable ties and magnetic rod 300 or pulls out the fixing piece 500 and magnetic rod 300. After the magnetic rod 300 is removed, since the magnetic rod 300 no longer attracts the magnetic particles in the roller 210, the magnetic particles are discharged through the inlet / outlet 201 and fall into the second container.

[0094] Although the technical solutions of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these technical solutions without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A hand-cranked, portable iron remover, characterized in that, include: Bracket (100); The rotating assembly (200) includes a roller (210) and a cover (220). The roller (210) is rotatably mounted on the bracket (100). The rotation axis of the roller (210) is horizontal. The roller (210) has an inlet and outlet (201). The cover (220) is detachably mounted on the inlet and outlet (201). A magnetic rod (300) is detachably mounted on the outer circumferential surface of the roller (210).

2. The hand-cranked portable iron remover according to claim 1, characterized in that: The inlet / outlet (201) is located on the outer circumferential surface of the roller (210).

3. The hand-cranked portable iron remover according to claim 2, characterized in that: The bracket (100) has an upper-opening mounting cavity (110), the sidewall of which communicates with the outside of the bracket (100), the roller (210) is mounted on the top of the bracket (100), and the bottom of the roller (210) is located inside the mounting cavity (110).

4. The hand-cranked portable iron remover according to claim 3, characterized in that: It also includes positioning pins (400), and the end faces on both sides of the roller (210) are provided with multiple first positioning holes (202) and multiple second positioning holes (203). The roller (210) is rotatable between a first position and a second position; In the first position, the inlet / outlet (201) faces upward, and each of the first positioning holes (202) is equipped with a detachable positioning pin (400). The positioning pin (400) cooperates with the bracket (100) to block the rotation of the roller (210). In the second position, the inlet / outlet (201) faces downward, and each of the multiple second positioning holes (203) is equipped with a detachable positioning pin (400). The positioning pin (400) cooperates with the bracket (100) to block the rotation of the roller (210).

5. The hand-cranked portable iron remover according to any one of claims 1 to 4, characterized in that: A hand crank (230) is connected to one end face of the roller (210), and the hand crank (230) can drive the roller (210) to rotate relative to the bracket (100).

6. The hand-cranked portable iron remover according to any one of claims 1 to 4, characterized in that: The bracket (100) is equipped with two bearing assemblies (120), which are spaced apart along the left and right directions of the bracket (100). The end faces of the roller (210) on the left and right sides are provided with rotating parts (240), and the two rotating parts (240) are respectively connected to the two bearing assemblies (120).

7. The hand-cranked portable iron remover according to claim 1, characterized in that: It also includes a fixing member (500), the outer circumferential surface of the roller (210) has a groove (211) extending in the axial direction of the roller (210), and the magnetic rod (300) is detachably mounted on the groove (211) by means of the fixing member (500).

8. The hand-cranked portable iron remover according to claim 7, characterized in that: The fastener (500) is a cable tie, which is fastened to the outside of the roller (210) and fixes the magnetic rod (300) to the groove (211).

9. The hand-cranked portable iron remover according to claim 7, characterized in that: The fixing member (500) has a receiving cavity (510), the fixing member (500) is inserted into the groove (211), the fixing member (500) is snapped into the side wall of the groove (211), and the magnetic rod (300) is located in the receiving cavity (510).

10. The hand-cranked portable iron remover according to claim 9, characterized in that: The two side walls of the groove (211) have protrusions (2111). The fastener (500) includes: A fixing part (520) is located outside the roller (210). The fixing part (520) is connected to a locking block (521). The locking block (521) is located inside the receiving cavity (510). The locking block (521) has a fixing groove (522). The magnetic rod (300) is engaged with the fixing groove (522) and located inside the receiving cavity (510). Two insertion parts (530) are provided, one end of each insertion part (530) is fixedly connected to the side of the fixing part (520) near the outer wall of the roller (210), the two insertion parts (530) are spaced apart along the width direction of the fixing part (520), the two insertion parts (530) surround to form the receiving cavity (510), each of the two insertion parts (530) has a recess (531) on the side away from each other, the two insertion parts (530) are inserted into the groove (211), and the protrusion (2111) is engaged with the recess (531).

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