Pellet manufacturing apparatus that prevents damage to pellet dies

Abstract

The present invention relates to a pellet manufacturing device that prevents damage to a pellet die and a cutter, thereby preventing damage to the pellet die of a pellet manufacturing device that manufactures molded pellets of a certain size. A pellet manufacturing device for preventing damage to a pellet die according to an embodiment of the present invention comprises a pellet forming section that extrudes raw material by a rotating pellet die to form a pellet, wherein the pellet forming section comprises a forming body in which the pellet die is rotatably installed, a cutting section fixedly installed on the forming body including a cutter positioned around the perimeter of the pellet die to cut the pellet extruded from the pellet die, and a chamber cover section that rotates on the forming body to open and close the forming body so as to expose the pellet die to the outside or to cover the pellet die, wherein the cutting section comprises a cutter installation section in which the cutter is installed, and an installation hinge that rotatably connects the cutter installation section to the cutting section so as to position the cutter close to the perimeter of the pellet die or spaced apart from the perimeter of the pellet die.

Description

Technology Field

[0001] The present invention relates to a pellet manufacturing apparatus for manufacturing pellets by extruding pellet raw materials. More specifically, the invention relates to a pellet manufacturing apparatus capable of adjusting the length of the pellets while preventing damage to the pellet die. Background Technology

[0002] Generally, pellets refer to small pieces made by compressing raw materials, and they are manufactured by extrusion or injection molding to facilitate the handling of fine particulate materials.

[0003] Since injection molding takes a long time to manufacture pellets, they are mostly produced by extrusion molding. In the extrusion molding process, the raw material is pressurized and pushed through a die with multiple extrusion holes, and the material extruded through the holes is cut to the desired size to produce pellets.

[0004] In conventional pellet manufacturing devices, although multiple cutters are installed along the edge of an induction disc, there is no separate technical configuration for adjusting the gap between the cutters and the induction disc. Consequently, when the length of the pellet needs to be varied according to the application, the cover must be removed and reinstalled. Furthermore, since the technical components supporting the cutters are prone to deformation or damage during the dismantling process for reinstallation, it is difficult to reduce the time and cost required for reinstalling the cover.

[0005] To solve this, a solution was previously disclosed in [Pellet manufacturing device having a length adjustment function] of Korean Registered Patent Publication No. 10-2629042.

[0006] The above-described conventional pellet manufacturing device equipped with a length adjustment function comprises a mixing supply unit into which crushed wood raw material is fed and mixed, a molding unit that rotates to extrude and mold the wood raw material supplied from the mixing supply unit to a certain thickness, a guide unit that guides the wood raw material supplied from the mixing supply unit toward the center of the molding unit to prevent the wood raw material from being lost to the outside of the molding unit and guides the wood raw material to be evenly supplied throughout the interior of the molding unit, a cutting unit that extends toward the molding unit through the guide unit and cuts the pellet extruded through the molding unit into a certain size, and a length adjustment unit that controls the gap between the molding unit and the cutting unit by adjusting the depth into which the cutting unit is inserted into the guide unit so as to adjust the length of the pellet delivered by the cutting unit, thereby making it easy to adjust the length of the pellet by varying the position of the blade member without a separate blade member dismantling operation.

[0007] However, in this pellet manufacturing device, the cutting section into which the pellet cutting cutter is inserted and the chamber cover section are manufactured as a single unit.

[0008] In addition, since the conventional cutting unit is installed in the direction in which the pellet die rotates regardless of whether the chamber cover is open, there was a problem where the cutter came into contact with the flange of the pellet die and was damaged when the chamber was opened without adjusting the cutter to the outside of the pellet die when opening and closing the chamber.

[0009] In addition, conventionally, to prevent damage to the cutter or flange, there was the inconvenience of having to first adjust the cutter to the outside of the pellet die when opening or closing the chamber door, and there was the hassle of having to readjust the position of the cutter.

[0010] In addition, conventionally, an inspection window was installed to check the position of the cutter and to adjust the insertion depth; however, since the field of view through the inspection window is limited, checking the cutter's position is inaccurate, making it difficult to accurately adjust the cutter's position and thus causing a problem in accurately controlling the length of the pellet. The problem to be solved

[0011] The present invention has been devised to solve the aforementioned problems, and the objective of the present invention is to provide a pellet manufacturing device that prevents damage to the pellet die by forming a molding body in which the pellet die is installed to rotate so as to easily check the wear condition of the cutter while preventing damage to the pellet die, and forming a cutting part in which a cutter for cutting pellets is installed in the molding body, and the cutting part is fixedly installed in the molding body so that only the chamber cover part is opened and closed when the pellet molding part is opened and closed.

[0012] In addition, the present invention aims to provide a pellet manufacturing device that prevents damage to a pellet die, wherein the chamber cover part forms a cutting part of the molding body and an insertion groove into which the cutting part is inserted at a position corresponding to the cutting part, so that the pellet molding part is tightly sealed.

[0013] In addition, the present invention aims to provide a pellet manufacturing device that prevents damage to a pellet die by including a hinge portion at a position opposite to the cutting portion so that opening and closing of the pellet molding portion is not restricted by the cutting portion when opening and closing the pellet molding portion.

[0014] In addition, the present invention aims to provide a pellet manufacturing device that prevents damage to a pellet die, which enables rapid maintenance by rotatably coupling a cutter mounting part, where a cutter is installed in a cutting part, and rotating the cutter mounting part while adjusting the cutting position of the cutter, thereby eliminating the need to readjust the height of the cutter when attaching or detaching the pellet die.

[0015] In addition, the present invention aims to provide a pellet manufacturing device that prevents damage to a pellet die, which allows for easy maintenance by selecting the positional movement of the cutter by the cutter installation part through a cutting locking member by restricting or releasing the rotation restriction of the cutter installation part.

[0016] In addition, the present invention aims to provide a pellet manufacturing device that prevents damage to a pellet die by configuring a locking means to fix a cover locking member to a chamber cover portion in a state where it overlaps with a cutting locking member, thereby locking the chamber cover portion only when the cutter is positioned in a position where it can cut pellets in the pellet die, so as to prevent molding defects caused by the cutter operating in a spaced-away state from the pellet die. means of solving the problem

[0017] A pellet manufacturing device for preventing damage to a pellet die according to an embodiment of the present invention for achieving the above-mentioned objective comprises a pellet forming section that extrudes raw material by a rotating pellet die to form a pellet, wherein the pellet forming section comprises a forming body in which the pellet die is rotatably installed, a cutting section fixedly installed on the forming body including a cutter positioned around the perimeter of the pellet die to cut the pellet extruded from the pellet die, and a chamber cover section that rotates on the forming body to open and close the forming body so as to expose the pellet die to the outside or to cover the pellet die, wherein the cutting section comprises a cutter installation section in which the cutter is installed, and an installation hinge that rotatably connects the cutter installation section to the cutting section so as to position the cutter close to the perimeter of the pellet die or spaced apart from the perimeter of the pellet die.

[0018] The above cutting part may further include a cutting part locking member that restricts the rotation of the cutter mounting part or releases the rotation restriction so that the cutter is positioned in a state close to the perimeter of the pellet die.

[0019] The above cutting member locking member may include a locking member locking pin that fixes or releases the cutting member locking member to restrict or release the rotation of the cutter mounting part.

[0020] It may include a cover locking member that locks the chamber cover while being fixed to the cutting locking member in a state where the cutting locking member restricts the rotation of the cutter installation part so as to operate in conjunction with the cutting locking member. Effects of the invention

[0021] According to the present invention, by separating the cutting section equipped with a cutter from the chamber cover section that opens and closes the molding body and forming the cutting section integrally with the molding body, it is possible to prevent the cutting section from colliding with and being damaged by the pellet die when the chamber cover section is opened and closed. Furthermore, since the cutting section is integrally formed with the molding body, the gap between the cutter and the pellet die can be easily adjusted when the chamber cover section is opened, and the wear condition of the cutter can be easily checked.

[0022] In addition, the present invention forms an insertion groove in which a cutter is inserted at a position corresponding to the cutting part, thereby enabling tight sealing of the pellet molding part when the molding body is sealed by the chamber cover part.

[0023] In addition, the present invention allows the gap between the pellet die and the cutter to be easily checked and adjusted by positioning the hinge portion, which rotatably connects the chamber cover portion to the molding body, opposite the cutting portion, so that the chamber cover portion is not fully opened.

[0024] In addition, the present invention allows for rapid maintenance by configuring the cutter mounting section, where the cutter is installed in the cutting section, to be rotatable so that the cutter mounting section is rotated while the gap between the cutter and the pellet die is adjusted, thereby allowing the cutter to be returned to its original position even after being separated from the pellet die, thus eliminating the need to reset the position of the cutter.

[0025] In addition, the present invention can prevent molding defects of the pellets from occurring by operating the cutter in a spaced-away state from the pellet die by fixing the locking means for locking the chamber cover in conjunction with the cutting locking member that fixes the cutter installation part. Brief explanation of the drawing

[0026] FIG. 1 is a side view showing the schematic configuration of a pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a pellet molding section constituting a pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention. FIG. 3 is a perspective view illustrating a pellet molding section constituting a pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention, showing a state in which the chamber cover is opened. FIG. 4 is a plan view illustrating the opening and closing state of a chamber cover portion constituting a pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention. FIG. 5 is a cross-sectional view of a cutting section constituting a pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention. FIG. 6 is a cross-sectional view of a cutting section constituting a pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention, showing a state in which the cutter is separated from the pellet die by the cutter installation section. FIG. 7 is a plan view showing the operating state of a cover locking device constituting a pellet manufacturing device that prevents damage to a pellet die in an embodiment of the present invention. Specific details for implementing the invention

[0027] Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

[0028] As illustrated in FIG. 1, a pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention may include a raw material supply unit (20) that supplies raw materials and a pellet molding unit (10).

[0029] The raw material supply unit (20) can receive the raw material and supply it to the pellet molding unit (10) in a state where the condition of the raw material is adjusted, and the raw material supply unit (20) can adjust the condition to an optimal state for manufacturing pellets by heating the raw material or supplying moisture during the process of conveying the raw material through the screw blade.

[0030] The pellet molding unit (10) can receive raw materials from the raw material supply unit (20) and mold them into the shape of pellets.

[0031] The pellet molding unit (10) can form pellets by receiving raw materials and extruding the raw materials, and the pellet molding unit (10) may include a molding body (100) for extruding into pellets while driving a pellet die (130).

[0032] As illustrated in FIGS. 1 to 3, the molding body (100) may include a body housing (110), a pellet die (130), a cutting part (120), a chamber cover part (140), and a cover locking means (150).

[0033] The main body housing (110) may have an internal space formed therein, and a pellet die (130) may be positioned on one side of the main body housing (110) so as to be exposed to the outside.

[0034] A drive unit (not shown) including a drive motor and a drive gear may be positioned in the internal space of the main body housing (110) to be connected to the pellet die (130) and to enable rotation of the pellet die (130).

[0035] The pellet die (130) can be installed rotatably on one side of the main body housing (110).

[0036] The pellet die (130) is formed in a ring shape so that raw materials can be supplied to the open inner circumference of the pellet die (130), and extrusion holes (131) can be formed through the circumference of the pellet die (130) in a certain pattern, and a pressure roller (140) for pressurizing the raw materials in the inner circumference of the pellet die (130) when rotated by a driving motor can be disposed in the inner circumference of the pellet die (130).

[0037] The raw material supplied to the open center of the pellet die (130) can be discharged as pellets while being compressed around the circumference of the pellet die (130) and pressurized between the rotating pellet die (130) and the pressure roller (140).

[0038] And, the pellets compressed through the extrusion hole (131) can be continuously formed by cutting them to a preset size by the cutter (121) and discharging them through the lower part of the chamber cover (140).

[0039] On both sides of the pellet die (130), die rim portions (133) having a diameter larger than the diameter of the pellet die (130) can be formed so that pellets extruded from the pellet die can fall downward.

[0040] The chamber cover portion (140) can be rotatably installed on the molding body (100) so as to expose the pellet die (130) installed in the main body housing (110) to the outside or to cover the pellet die (130).

[0041] The chamber cover portion (140) may be composed of a cover housing (141), a cut portion insertion groove (149), and a cover hinge portion (147).

[0042] The cover housing (141) may be in the form of having an internal space formed by opening the side to accommodate the pellet die (130).

[0043] A raw material supply duct (145) that supplies raw material into the interior of the pellet die (130) can be connected to the part facing the opening (143) of the cover housing (141).

[0044] The raw material supplied from the raw material supply unit (20) flows into the internal space of the cover housing (141) through the raw material supply duct (145), and the raw material flowing into the internal space can be supplied directly to the inner circumference of the pellet die (130).

[0045] The cover housing (141) may have a cut portion insertion groove (149) formed at a position corresponding to the cut portion (120) so that the fixedly installed cut portion (120) of the molded body (100) is inserted into one side of the opening (143).

[0046] The cut portion insertion groove (149) is formed in a shape that cuts the cover housing (141) to correspond to the circumference of the cut portion (120) fixedly installed on the molded body (100), so that when the molded body (100) is sealed through the cover housing (141), the cut portion (120) is inserted into the cut portion insertion groove (149), thereby completely sealing the circumference of the cover housing (141).

[0047] The cutting section insertion groove (149) can be sealed so that the cutter extension (121b) is exposed to the outside even when the cover housing (141) is closed, thereby allowing the length of the pellet being cut by the cutter (121) to be adjusted while the cover housing (141) is closed.

[0048] The cover housing (141) can be opened and closed by rotating the cover hinge part (147) on the molded body (100), and the cover hinge part (147) can be located in the opposite direction to the direction in which the cutting part (120) is located on the cover housing (141).

[0049] For example, the cover housing (141) is installed to rotate in the main body housing (110) to open and close the pellet forming section (10). The cover hinge section (147) is positioned in the opposite direction to the direction in which the cutting section (120) is located with respect to the pellet die (130) in the cover housing (141), so that it can be rotatably connected to move closer to or further away from the cutting section (120) when the cover housing (141) is opened and closed. This allows the cutting section (210) to be easily exposed to the outside even without the cover housing (141) being fully opened and closed, thereby enabling accurate and easy adjustment of the distance between the cutter (121) and the pellet die (130).

[0050] The cover hinge portion (147) may be in the form of a hinge, but may be composed of various known structures that allow the cover housing (141) to rotatably connect to the main body housing (110), such as a hinge pin.

[0051] As illustrated in FIGS. 5 and 6, the cutting section (120) can cut the raw material extruded through the pellet die (130) into a preset size to produce pellets having a preset length.

[0052] A cutter (121) for cutting pellets may be installed in the cutting section (120), and multiple cutters (121) may be installed in the cutting section (120).

[0053] The cutter (121) can be cut to a preset size by a cutter blade (121a) positioned close to the pellet die (130), and the cutter blade (121a) can enter between the die rim portions (133) formed on both sides of the pellet die (130) and be positioned around the perimeter of the pellet die (130).

[0054] The cutter (121) may include a rod-shaped cutter extension (121b), and a cutter blade (121a) for cutting pellets may be installed at one end of the cutter extension (121b).

[0055] A measuring scale (121c) for adjusting the distance between the pellet die (130) and the cutter blade (121a) to set the length of the pellet being manufactured can be formed along the length of the cutter extension (121b).

[0056] The cutting portion (120) can be fixed and positioned in the main body housing (110) where the pellet die (130) is located.

[0057] The cutting section (120) may be configured with a cutter installation section (123) for installing a cutter (121) so that the pellets extruded from the pellet die (130) can be cut uniformly into a preset size.

[0058] Since the outer end of the cutter installation part (123) can rotate up and down by means of the installation hinge (125) in the cutting part (120) and can move closer to or further away from the circumference of the pellet die (130), the cutter (121) installed in the cutter installation part (123) can be positioned closer to or further away from the pellet die (130) as the cutter installation part (123) rotates.

[0059] At this time, the cutter mounting part (123) may be restricted from rotating further at a preset angle in the direction of rotation so that the cutter blade (121a) is positioned close to the circumference of the pellet die (130).

[0060] A cutter installation block (123a) that is supported by penetrating the cutter extension (121b) of the cutter (121) may be installed in the cutter installation section (123), and a cutter stopper (123b) for fixing the cutter blade (121a) and the perimeter of the pellet die (130) in an adjusted state may be installed in the cutter installation block (123a).

[0061] The cutter stopper (123b) is fastened in the form of a bolt on the side of the cutter installation block (123a) and can fix the cutter (121) in a state where the height of the cutter is adjusted by pressing the cutter extension (121b) from the cutter installation block (123a) by screw fastening.

[0062] The cutter installation section (123) may be configured to have multiple cutters (121) inserted as needed, and in the embodiment, the cutter installation section (123) is configured to be rotatable by means of an installation hinge (125) at the top and bottom of the cutter section (120), respectively.

[0063] Meanwhile, since the cutter installation part (123) rotates in a state where the gap between the cutter blade (121a) and the pellet die (130) is adjusted when rotating in the cutting part (120), even if the cutter installation part (123) is rotated in a direction separated from the pellet die (130) and then rotated again to be close to the pellet die (130), the initially adjusted gap between the pellet die (130) and the cutter blade (121a) can be maintained at the same level.

[0064] The cutter installation part (123) may be supported by an elastic member so that the elastic force of the elastic member (not shown) acts in a direction in which the cutter (121) is separated from the pellet die (130). The elastic member is implemented as a torsion spring, and when the cutter installation part (123) is pressed and rotated so that the cutter (121) approaches the pellet die (130), the elastic force is accumulated. When the pressing force applying pressure to the cutter installation part (123) disappears, the cutter installation part (123) can be rotated so that the cutter (121) moves away from the pellet die (130) by the accumulated elastic force.

[0065] As illustrated in FIGS. 4 to 7, the cutting portion (120) may further include a cutting portion locking member (127).

[0066] The cutting locking member (127) can fix the cutter mounting part (123) in a rotated state so that the cutter blade (121a) is positioned close to the pellet die (130) to cut the pellet extruded from the pellet die (130), or can release the fixation of the cutter mounting part (123) so that the cutter blade (121a) can be separated from the pellet die (130).

[0067] The cutting member locking member (127) is configured to be rotatable by means of a locking member hinge (129) in the cutting member or the molding body, so that it can rotate around the locking member hinge (129) to press and fix the cutter installation member (123) or be separated from the cutter installation member (123) to release the fixation.

[0068] Meanwhile, the end of the cutting locking member (127) may be formed with a cutting pressure part (127a) to press and fix the cutter mounting part (123) at an angle that allows it to rotate as much as possible so that it is positioned as close as possible to the cutter blade (121a) and the pellet die (130).

[0069] The cutting pressure member (127a) is formed by bending the cutting locking member (127) at an angle corresponding to the angle at which the cutter installation member (123) can be pressed to the maximum, so that when the cutting locking member (127) is in close contact with the cutting part, the cutter installation member (123) can be fixed by rotating to the maximum angle of the cutting pressure member (127a).

[0070] The cutting member locking member (127) may optionally be provided with a locking member locking pin (129a) for releasing the fixation of the cutter installation part (123), and the locking member locking pin (129a) may be fitted into the locking member hinge (129) while the cutting member locking member (127) is fixed by pressing the cutter installation part (123) against it, thereby restricting the rotation of the cutting member locking member (127) in a manner that restricts the rotation of the cutting member locking member (127) at the locking member hinge (129).

[0071] On the other hand, when the locking member locking pin (129a) is removed, the fixation of the cutting member locking member (127) at the locking member hinge (129) is released, and the limited rotation of the cutter installation part (123) can be released.

[0072] A locking ring (127b) may be formed protruding from the cutting locking member (127) so as to be able to secure the cover housing (141) by the cover locking means (150) described below.

[0073] As illustrated in FIG. 7, the cover locking means (150) can prevent the cover housing (141) from being opened arbitrarily while the cover housing (141) is sealed on the molding body (100), thereby preventing the pellet or raw material formed by the pellet die (130) from leaking out.

[0074] The cover locking means (150) can be installed in the portion where the cut portion insertion groove (149) is located, which is a position corresponding to the cut portion (120) of the molded body (100) and the cover housing (141).

[0075] The cover locking means (150) can fix the cover locking member (151) by rotating it in the direction in which the molded body (100) is located from the cover housing (141), or release the fixation by rotating it in the direction in which the cover housing (141) is located from the molded body (100) while it is fixed.

[0076] The cover lock (151) can be installed so that its outer end can rotate horizontally around the lock hinge (153) in the cover housing (141), and a locking ring hole (151a) into which a locking ring (127b) is inserted can be formed through the outer end of the cover lock (151) so as to perform locking of the cover housing (141) in conjunction with a cutting locking member.

[0077] The cover locking means (150) includes a cover locking pin (155), so that when the cover locking member (151) rotates and the locking ring (127b) is inserted and fitted into the locking ring hole (151a), the cover locking member (151) can be locked by fitting the cover locking pin (155) into the locking ring (127b) and, when the cover locking pin (155) is separated from the locking ring (127b), the locking ring (127b) is detached from the locking ring hole (151a), thereby releasing the lock from the cover locking member (151).

[0079] The interactions and effects between each component described above are explained.

[0080] A pellet manufacturing device that prevents damage to a pellet die according to an embodiment of the present invention receives raw materials by a raw material supply unit (20) that supplies raw materials for molding pellets.

[0081] The raw material is transferred to the pellet molding section (10) through a raw material supply duct (145) connected to the chamber cover section (140) and supplied to a pellet die (130) rotatably installed in the internal space of the molding body (100) through a raw material supply port (214) formed in the chamber cover section (140).

[0082] The raw material supplied to the pellet die (130) is pressed by the pressure roller (140) as the pellet die (130), which is connected to the drive motor, rotates, and is then extruded into the extrusion hole (131) of the pellet die (130) to form a pellet.

[0083] And the pellets extruded from the pellet die (130) are cut into a uniform size by a cutter (121) located around the perimeter of the pellet die (130) as the pellet die (130) rotates.

[0084] The cutter (121) sets the length of the pellet produced by adjusting the distance between the cutter blade (121a) and the outer circumference of the fillet die (130) through a scale formed by the cutter extension (121b).

[0085] Meanwhile, when inspecting the pellet die (130) or maintaining the interior of the chamber cover (140), the cover locking means (150) is unlocked to open the cover housing (141).

[0086] The cover locking means (150) separates the cover locking pin (155) fitted into the locking ring (127b) from the locking ring (127b) and rotates the cover locking member (151) around the locking member hinge (153) so that the locking ring (127b) is disengaged from the locking ring hole (151a).

[0087] When the locking ring (127b) is released from the cover lock (151), the cover housing (151) is rotated around the cover hinge part (145).

[0088] When the cover housing (151) rotates, the cutting part (120) is fixedly installed on the molded body (100), so the cutting part insertion groove (149) is separated from the cutting part (120), the interior is opened, and maintenance is performed through the opened interior.

[0089] Here, as in the conventional method, when the cutting portion (120) is integrally formed in the cover housing (151), when the cover housing (151) is opened, the cutter (121) may be placed over the die rim portion (133) of the pellet die (130), thereby restricting the opening, or damage to the pellet die (130) may occur due to the cutter (121).

[0090] However, in the present invention, when the cover housing (151) is opened, the cutting part (120) remains fixedly installed on the molding body (100) and only the cover housing (151) is opened, thereby preventing collision between the cutter (121) and the pellet die (130), and thus preventing damage to the cutter (121) or the pellet die (130) when the cover housing (151) is opened.

[0091] In addition, even if the cover housing (141) is opened, the cutting part (120) is connected to the molding body (100), so the gap between the cutter (121) and the pellet die (130) is clearly identified and adjusted, thereby allowing the length of the pellet to be clearly and easily adjusted.

[0092] Meanwhile, when it is necessary to separate the pellet die (130) from the molding body (100) in order to replace or inspect the pellet die (130) or to replace the pellet product while the cover housing (151) is open, the locking member locking pin (129a) is separated from the locking member hinge (129).

[0093] When the fixation of the cutting member locking member (127) by the locking member locking pin (129a) is released, the cutting member locking member (127) is rotated around the locking member hinge (129) so as to be separated from the cutter installation part (123).

[0094] When the cutting locking member (127) is separated from the cutter installation part (123), the cutter installation part (123) rotates around the installation hinge (125) in the direction in which the cutter (121) is separated from the pellet die (130) by the elastic force of the elastic member.

[0095] When the cutter installation part (123) rotates and the cutter (121) is separated from the pellet die (130), the cutter (121) is prevented from getting caught on the die rim part, thereby allowing the pellet die (130) to be easily separated from the molding body (100).

[0096] Then, after installing the pellet die (130) on the molding body (100) by maintaining or replacing it, if the cutting part locking member (127) is rotated so as to be in close contact with the cutting part (120) around the locking member hinge (129), the cutting part pressing part (127a) formed at the end of the cutting part locking member (127) presses the cutter installation part (123) and rotates the cutter installation part (123) to an angle before it is unfolded.

[0097] When the cutter mounting part (123) rotates, the cutter blade (121a) enters between the die rim part (133), and the cutter (120) is positioned close to the pellet die (130).

[0098] Here, the cutter (120) maintains the adjusted gap between the pellet die (130) and the cutter blade (121a) by rotating the cutter mounting part (123) to return to the initial position while the gap between the cutter (120) and the pellet die (130) is adjusted, so there is no need to readjust the height according to the change in position of the cutter (121a) when the pellet die (130) is attached or detached.

[0099] Meanwhile, when the cutting part locking member (127) is in close contact with the cutting part (120), the locking member locking pin (129a) is inserted into the locking member hinge (129) to fix the cutting part locking member (127).

[0100] Afterward, the cover housing (141) is rotated to seal the pellet die (130), and when the pellet die (130) is sealed by the cover housing (141), the cover locking member (151) is rotated in the direction where the locking ring (127b) of the cutting locking member (127) is located, and the locking ring (127b) is inserted into the locking ring hole (151a) to lock the cover housing (141) so that it does not open, and the pellet die (130) is started.

[0101] If the cutter (121) is separated from the pellet die (130) and the cutter installation part (123) is not fixed through the cutting locking member (127), the cover locking member (151) cannot be inserted and fixed into the locking ring (127b) of the cutting locking member (127), so locking cannot be performed, making it easy to detect the cutter installation part (123) is not fixed and thus preventing the occurrence of molding defects where the pellet is not cut.

[0103] Accordingly, in the pellet manufacturing device of the present invention for preventing damage to the pellet die, a cutting part (120) with a cutter (121) installed is integrally formed on the molding body (100), and since only the cover housing (141) rotates on the molding body (100) to open the molding body (100), it is possible to prevent the cutter (121) from colliding with and damaging the pellet die (130) when the cover housing (141) is opened.

[0104] In addition, since the cutting part (120) is fixedly installed on the molding body (100) in the present invention, when the cover housing (141) is opened, the cutter (121) and the pellet die (130) are exposed to the outside, and since the distance between them can be clearly identified, the distance between the cutter (121) and the pellet die (130) can be easily and accurately adjusted.

[0105] In addition, the present invention allows the pellet die (130) or cutter (121) to be maintained even without fully opening the cover housing (141) by positioning the cover hinge part (147), which connects to open the cover housing (141), in the opposite direction to the cutting part (120).

[0106] In addition, the present invention allows the cutter (121) to be positioned so that it is easily positioned to approach or be separated from the pellet die (130) by installing the cutter (121) in a cutter installation part (123) that is rotatably installed in the cutting part (120). Furthermore, since the cutter (121) and the pellet die (130) that were initially adjusted can be maintained even when the cutter (121) is returned to its initial position while separated from the pellet die (130), maintenance can be performed quickly.

[0107] In addition, the present invention can prevent molding defects caused by changing the initial set pellet length by minimizing unnecessary movement of the cutter (121) by fixing and releasing the cutter installation part (123) by the cutting locking member (127).

[0108] In addition, the present invention can prevent molding defects in which pellets are not cut due to the cutter installation part (123) by configuring the locking means (150) to perform locking only when the cutting locking member (127) fixes the cutter installation part (123).

[0110] Although embodiments of the present invention have been described above, the scope of the present invention is not limited thereto and includes all changes and modifications within the scope recognized as equivalents that can be easily changed by a person skilled in the art from the embodiments of the present invention. Explanation of the symbols

[0111] 10 : Pellet molding section 20 : Raw material supply section 100 : Molded main body 110 : Main body housing 120 : Cutting section 121 : Cutter 121a: Cutter blade 121b: Cutter extension 121c: Adjustment scale 123: Cutter mounting part 123a: Cutter installation block 123b: Cutter stopper 125: Installation hinge 127: Cutting locking member 127a: Cutting pressure part 127b: Locking hook 129: Locking member hinge 129a: Locking member locking pin 130: Pellet die 131: Extrusion hole 133: Die rim part 140: Chamber cover part 141: Cover housing 143: Opening 145: Raw material supply duct 147: Cover hinge part 149: Cut section insertion groove 150: Cover locking means 151: Cover lock 151a: Locking hook hole 153: Locking hinge 155: Cover locking pin

Claims

Claim 1 A pellet manufacturing device for preventing damage to a pellet die, comprising a pellet forming section that extrudes raw materials by means of a rotating pellet die to form pellets, wherein the pellet forming section comprises a forming body on which the pellet die is rotatably installed, a cutting section fixedly installed on the forming body and including a cutter positioned around the perimeter of the pellet die to cut pellets extruded from the pellet die, and a chamber cover section that rotates on the forming body to open and close the forming body so as to expose the pellet die to the outside or to cover the pellet die, wherein the cutting section comprises a cutter installation section on which the cutter is installed, an installation hinge that rotatably connects the cutter installation section to the cutting section so as to position the cutter close to the perimeter of the pellet die or spaced apart from the perimeter of the pellet die, an elastic member that supports the cutter installation section by means of elastic force so as to rotate the cutter spaced apart from the pellet die around the installation hinge, and wherein the cutter is of the pellet die A pellet manufacturing device for preventing damage to a pellet die, characterized in that it further includes a cutting locking member that restricts or releases the rotation of the cutter mounting part so as to be positioned in close proximity to the perimeter, and the pellet forming part further includes a cover locking means that locks or unlocks the chamber cover part, wherein the cover locking means includes a cover locking member that locks the chamber cover part while being fixed to the cutting locking member in a state where the cutting locking member restricts the rotation of the cutter mounting part so as to operate in conjunction with the cutting locking member. Claim 2 delete Claim 3 A pellet manufacturing apparatus for preventing damage to a pellet die according to claim 1, wherein the cutting member locking member includes a locking member locking pin that fixes or releases the cutting member locking member to restrict or release the rotation of the cutter mounting part. Claim 4 delete

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