Chipping knife for chipping machine and using method of chipping knife

Abstract

The invention discloses a chipping machine chipping cutter and a using method thereof.The chipping machine chipping cutter comprises a chipping machine body and a cutter roller body, the cutter roller body comprises a cutter rest arranged on the chipping machine body, a fly cutter arranged on the cutter rest and a pressure block arranged between the cutter rest and the fly cutter, and the top of the fly cutter is fixedly connected with a connecting unit; the connecting unit comprises an inserting block inserted into an inner cavity of the knife rest, the inner cavity of the knife rest is movably connected with a safety unit, and the safety unit comprises a pull rod movably connected to the top of the knife rest. Through the connecting unit, quick and stable connection between the fly cutter and the cutter rest is achieved, replacement and debugging of the fly cutter are facilitated, the safety unit provides an additional safety guarantee mechanism, and on the premise that the cutter rest, the fly cutter and the pressure block are fixed through bolts, it is guaranteed that the fly cutter is not damaged even if the fly cutter is subjected to abnormal pressure or impact in the cutting process, and consequently the bolts are loosened. And the fly cutter can be kept stable and does not fall off.

Description

Technical Field

[0001] The invention relates to the technical field of chippers, in particular to a chipping knife for a chipper and a use method thereof. Background Art

[0002] Chipper, also known as wood slicer, is one of the wood processing equipment. It is widely used in the material preparation section of the production process of textile, papermaking, pulping, wood-based panels and other industries. Chipper can be divided into two categories according to the mechanical structure: drum chipper and disc chipper. The drum chipper is a cylindrical knife roller (drum) with several flying knives installed on the surface of the knife roller parallel to the axis. The drum chipper has a compact structure and a wide range of cutting raw materials. It is suitable for small-diameter wood, wood processing residues and wood felling residues. The working principle of the chipper mainly depends on its internal cutting mechanism. When the wood is fed into the feed port, it will contact the high-speed rotating cutting blade. As the blade rotates, the wood is cut into wood chips. The cut wood chips are sent out in the cutting chamber by the high-speed airflow generated by the fan blades on the knife disc.

[0003] Traditional chipper blades are usually fixed to the tool holder with simple bolts. This fixing method is prone to cause the blades to loosen or fall off due to vibration and uneven force during long-term high-intensity cutting, which not only affects the cutting effect, but may also cause damage to the equipment and even cause safety accidents. In addition, the blade replacement process is often cumbersome and complicated, requiring a lot of time and effort, reducing the maintenance efficiency and production benefits of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a chipping knife for a chipper and a method of using the same, which has the advantage of double fixation and solves the problem that only one fixing method, such as fixing by bolts, may cause the blade to loosen or fall off due to vibration and uneven force.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chipping knife for a chipper, comprising a chipper body and a knife roller body, the knife roller body comprising a knife holder arranged on the chipper body, a flying knife arranged on the knife holder, and a pressure block arranged between the knife holder and the flying knife, the top of the flying knife is fixedly connected with a connecting unit, the connecting unit comprises an insert block plugged into the inner cavity of the knife holder, the inner cavity of the knife holder is movably connected with a safety unit, and the safety unit comprises a pull rod movably connected to the top of the knife holder.

[0006] Preferably, the surfaces of the tool holder, the flying knife and the pressure block are all provided with matching threaded holes, and the tool holder, the flying knife and the pressure block are fixed by bolt threads.

[0007] Preferably, the inner cavity of the plug block is provided with a first spring, both ends of the first spring are fixedly connected with triangular clamping blocks, the triangular clamping blocks penetrate to the outside of the plug block and are slidably connected thereto, and the top of the triangular clamping block is fixedly connected with a movable seat.

[0008] Preferably, one end of the pull rod located in the inner cavity of the tool holder is fixedly connected to a push rack, the bottom of the push rack is in contact with the top of the movable seat, and a second spring is sleeved on the surface of the pull rod, and the two ends of the second spring are respectively fixedly connected to the inner wall of the tool holder and the top of the push rack.

[0009] Preferably, a slide groove is provided on the top of the movable seat, and a pulley is movably connected to the bottom of the push frame through a bearing, and the pulley extends to the inner cavity of the slide groove and is slidably connected thereto.

[0010] Preferably, the method of use comprises the following steps:

[0011] A. Insert the insert block into the inner cavity of the tool holder and pull the pull rod. After the insert block is inserted into the inner cavity of the tool holder, release the pull rod. The reset elastic force of the second spring will drive the push frame to extend to the inner cavity of the insert block.

[0012] B. At the same time, the pulley at the bottom of the push frame will extend to the inner cavity of the slide groove at the top of the movable seat. Under the influence of the second spring return elastic force, the push frame will squeeze the movable seat downward. When the movable seat is subjected to force, it will drive the triangular clamping block to move, and the triangular clamping block will move to the outside of the plug-in block, thereby fixing the plug-in block through the triangular clamping block.

[0013] C. Then insert the pressure block between the tool holder and the flying cutter, and fix the tool holder, flying cutter and pressure block with bolts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention realizes a fast and stable connection between the flying cutter and the tool holder through the connecting unit, which is convenient for replacing and debugging the flying cutter. The insurance unit provides an additional safety guarantee mechanism. Under the premise that the tool holder, the flying cutter and the pressure block are fixed by bolts, it ensures that during the cutting process, even if the flying cutter is subjected to abnormal pressure or impact, causing the bolts to loosen, the flying cutter can remain stable and not fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the chipper body structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the knife roller body of the present invention;

[0018] Figure 3 It is a schematic diagram of the connection structure of the tool holder, the flying knife and the pressure block of the present invention;

[0019] Figure 4 It is a schematic diagram of the side view of the tool holder, flying knife and pressure block of the present invention;

[0020] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0021] Figure 6 This is a schematic diagram of the triangular block structure of the present invention;

[0022] Figure 7 It is a schematic diagram of the push frame structure of the present invention.

[0023] In the figure: 1, chipper body; 2, knife roller body; 21, knife holder; 22, flying knife; 23, pressure block; 3, connecting unit; 31, plug block; 32, first spring; 33, triangular clamp block; 34, movable seat; 35, slide groove; 4, safety unit; 41, pull rod; 42, push frame; 43, second spring; 44, pulley. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1-5 As shown, it is the first embodiment of the present invention, which provides a chipping knife for a chipper, including a chipper body 1 and a knife roller body 2, the knife roller body 2 includes a knife holder 21 arranged on the chipper body 1, a flying knife 22 arranged on the knife holder 21, and a pressure block 23 arranged between the knife holder 21 and the flying knife 22, the top of the flying knife 22 is fixedly connected with a connecting unit 3, the connecting unit 3 includes an insert block 31 plugged into the inner cavity of the knife holder 21, the inner cavity of the knife holder 21 is movably connected with a safety unit 4, and the safety unit 4 includes a pull rod 41 movably connected to the top of the knife holder 21.

[0027] The surfaces of the tool holder 21, the flying knife 22 and the pressure block 23 are all provided with matching threaded holes, and the tool holder 21, the flying knife 22 and the pressure block 23 are fixed by bolt threads.

[0028] like Figure 1-5 As shown,

[0029] The connection unit 3 realizes a fast and stable connection between the flying knife 22 and the tool holder 21, which is convenient for the replacement and debugging of the flying knife 22. The insurance unit 4 provides an additional safety guarantee mechanism. Under the premise that the tool holder 21, the flying knife 22 and the pressure block 23 are fixed by bolts, it is ensured that during the cutting process, even if the flying knife 22 is subjected to abnormal pressure or impact, resulting in loose bolts, the flying knife 22 can be kept stable and not fall off. By setting the tool holder 21 as a supporting structure for the flying knife 22 and the pressure block 23, it is ensured that they remain stable during the cutting process, wherein the flying knife 22 performs a cutting operation to cut the raw material into the required wood chips or scraps, and the pressure block 23 applies pressure to the flying knife 22 to ensure that the flying knife 22 is closely attached to the raw material during the cutting process, thereby improving the cutting efficiency and the quality of the finished product. The above structure is simple and clear, and is easy to install and maintain. Through the design of the pressure block 23, the pressure between the flying knife 22 and the raw material can be flexibly adjusted to adapt to raw materials of different materials and specifications.

[0030] Example 2

[0031] Reference Figure 5-7 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0032] In this embodiment, a first spring 32 is provided in the inner cavity of the plug block 31, and both ends of the first spring 32 are fixedly connected with triangular clamping blocks 33. The triangular clamping blocks 33 penetrate to the outside of the plug block 31 and are slidably connected thereto, and a movable seat 34 is fixedly connected to the top of the triangular clamping block 33.

[0033] One end of the pull rod 41 located in the inner cavity of the tool holder 21 is fixedly connected to a push rack 42, the bottom of the push rack 42 contacts the top of the movable seat 34, and the surface of the pull rod 41 is sleeved with a second spring 43, and the two ends of the second spring 43 are respectively fixedly connected to the inner wall of the tool holder 21 and the top of the push rack 42.

[0034] A slide groove 35 is formed on the top of the movable seat 34 , and a pulley 44 is movably connected to the bottom of the push frame 42 via a bearing. The pulley 44 extends to the inner cavity of the slide groove 35 and is slidably connected thereto.

[0035] like Figure 5-7As shown, the design of the plug block 31 makes the connection process simpler and faster, and improves work efficiency. The plug-in cooperation between the plug block 31 and the inner cavity of the tool holder 21 ensures the stability of the flying cutter 22 during the cutting process. The cooperation design of the first spring 32 and the triangular clamping block 33 realizes the function of automatic locking and unlocking, improves the convenience and safety of operation, and ensures that the plug block 31 is firmly fixed in the inner cavity of the tool holder 21. The setting of the movable seat 34 and the slide groove 35 structure provides a sliding track for the triangular clamping block 33 to ensure that it can move smoothly during the locking and unlocking process, reducing friction and wear. The design of the pull rod 41 and the push frame 42 allows the operator to easily control the opening and closing of the safety unit 4. The reset elastic force of the second spring 43 enables the push frame 42 to automatically extend to the inner cavity of the plug block 31 after the pull rod 41 is released, thereby realizing the function of automatic locking.

[0036] Example 3

[0037] Reference Figure 5 , which is the third embodiment of the present invention, and this embodiment is based on the previous two embodiments.

[0038] In this embodiment, when the first spring 32 is in a stationary state, most of the two triangular blocks 33 are located in the inner cavity of the insert block 31, which facilitates the insertion of the insert block 31 into the inner cavity of the tool holder 21. At the same time, the elastic force of the second spring 43 is greater than the elastic force of the first spring 32. Under the reset elastic force of the second spring 43, the first spring 32 will be stretched when the two triangular blocks 33 move out of the insert block 31, which facilitates the rebound of the triangular blocks 33 when unlocking, so that the insert block 31 can be easily pulled out of the inner cavity of the tool holder 21.

[0039] When in use, the insert block 31 is inserted into the inner cavity of the tool holder 21, and the pull rod 41 is pulled. After the insert block 31 is inserted into the inner cavity of the tool holder 21, the pull rod 41 is released, and the reset elastic force of the second spring 43 will drive the push frame 42 to extend to the inner cavity of the insert block 31. At the same time, the pulley 44 at the bottom of the push frame 42 will extend to the inner cavity of the slide groove 35 at the top of the movable seat 34. Under the influence of the reset elastic force of the second spring 43, the push frame 42 will squeeze the movable seat 34 downward, and the movable seat 34 will drive the triangular clamping block 33 to move when subjected to force, and the triangular clamping block 33 moves toward the outside of the insert block 31, thereby fixing the insert block 31 through the triangular clamping block 33, and then the pressure block 23 is inserted between the tool holder 21 and the flying knife 22, and the tool holder 21, the flying knife 22 and the pressure block 23 are fixed by bolts.

[0040] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chipping knife for a chipper, comprising a chipper body (1) and a knife roller body (2), characterized in that: The blade roller body (2) comprises a blade holder (21) arranged on the chipper body (1), a flying knife (22) arranged on the blade holder (21), and a pressure block (23) arranged between the blade holder (21) and the flying knife (22); the top of the flying knife (22) is fixedly connected to a connecting unit (3); the connecting unit (3) comprises an insert block (31) inserted into the inner cavity of the blade holder (21); the inner cavity of the blade holder (21) is movably connected to a safety unit (4); the safety unit (4) comprises a pull rod (41) movably connected to the top of the blade holder (21).

2. A chipping knife for a chipper according to claim 1, characterized in that: The surfaces of the tool holder (21), the flying knife (22) and the pressure block (23) are all provided with matching threaded holes, and the tool holder (21), the flying knife (22) and the pressure block (23) are fixed by bolt threads.

3. The chipping knife for a chipper according to claim 1, characterized in that: The inner cavity of the insert block (31) is provided with a first spring (32), both ends of the first spring (32) are fixedly connected with triangular clamping blocks (33), the triangular clamping block (33) penetrates the outside of the insert block (31) and is slidably connected thereto, and the top of the triangular clamping block (33) is fixedly connected with a movable seat (34).

4. The chipping knife for a chipper according to claim 1, characterized in that: The pull rod (41) is located at one end of the inner cavity of the tool holder (21) and is fixedly connected to a push rack (42). The bottom of the push rack (42) contacts the top of the movable seat (34). The surface of the pull rod (41) is sleeved with a second spring (43). The two ends of the second spring (43) are respectively fixedly connected to the inner wall of the tool holder (21) and the top of the push rack (42).

5. The chipping knife for a chipper according to claim 4, characterized in that: A slide groove (35) is provided on the top of the movable seat (34), and a pulley (44) is movably connected to the bottom of the push frame (42) through a bearing. The pulley (44) extends to the inner cavity of the slide groove (35) and is slidably connected thereto.

6. A method for using a chipping knife for a chipper according to any one of claims 1 to 5, characterized in that: The method of use includes the following steps: A. Insert the insert block (31) into the inner cavity of the tool holder (21) and pull the pull rod (41). After the insert block (31) is inserted into the inner cavity of the tool holder (21), release the pull rod (41), and the return elastic force of the second spring (43) will drive the push frame (42) to extend into the inner cavity of the insert block (31). B. At the same time, the pulley (44) at the bottom of the push frame (42) will extend to the inner cavity of the slide groove (35) at the top of the movable seat (34). Under the influence of the return elastic force of the second spring (43), the push frame (42) will press the movable seat (34) downward. When the movable seat (34) is subjected to force, it will drive the triangular clamping block (33) to move, and the triangular clamping block (33) will move to the outside of the plug-in block (31), thereby fixing the plug-in block (31) through the triangular clamping block (33). C. Then, the pressure block (23) is inserted between the tool holder (21) and the flying knife (22), and the tool holder (21), the flying knife (22) and the pressure block (23) are fixed by bolts.

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