Internal knife rest and rubber tapping device

Abstract

The utility model provides a female knife rest and a rubber tapping device, the female knife rest comprises a knife arm part and a knife head part, and the knife arm part is rotatably connected to the rubber tapping device; the tool bit part comprises a mounting arm and a supporting arm, the mounting arm is used for mounting a blade, the mounting arm is obliquely arranged in the direction away from the tool arm part, the blade is arranged on the side, away from the tool arm part, of the mounting arm, a mounting space for mounting the blade is formed in the side, away from the tool arm part, of the mounting arm, the tool bit part comprises a first side and a second side, and the blade faces the first side; the first side and the second side are communicated with the installation space, the tool bit part is provided with a closed end and an open end, the installation arm and the supporting arm are fixedly connected at the closed end, the supporting arm protrudes in the direction away from the installation arm at the closed end, and the installation arm and the supporting arm are movably connected with the tool arm part at the open end. The female knife rest is large in rubber output, enlarges the installation space of the blade, facilitates the replacement of the blade, improves the tree chip passing ability of the knife head part, avoids the damage of a rubber tapping device, and improves the rubber tapping efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber tapping, and more particularly, to a negative knife holder and a rubber tapping device. Background Art

[0002] A rubber tapping device is a device used for rubber tapping on rubber trees. The rubber tapping device has a rubber tapping knife holder for cutting rubber trees. For the existing rubber tapping knife holder, it is difficult to install the double-axis cutter head blades, not convenient for replacing the blades, and the chip passing performance of the cutter head is poor. It often gets stuck with chips, or the bark easily falls into the rubber receiving groove, causing damage to the rubber tapping device. Utility Model Content

[0003] In view of the above problems existing in the prior art, the purpose of the present utility model is to provide a negative knife holder and a rubber tapping device. The negative knife holder has a large amount of rubber output, expands the blade installation space, is convenient for replacing the blades, improves the chip passing performance of the cutter head, avoids damaging the rubber tapping device, and improves the rubber tapping efficiency.

[0004] The technical solution adopted by the present utility model is to provide a negative knife holder. The negative knife holder is arranged on the rubber tapping device for cutting an object to be cut. The negative knife holder includes:

[0005] A knife arm part, which is rotatably connected to the rubber tapping device;

[0006] A cutter head, which includes a mounting arm and a support arm. The mounting arm is used for mounting a blade. The mounting arm is inclined away from the knife arm part. The blade is arranged on the side of the mounting arm away from the knife arm part. The side of the mounting arm away from the knife arm part forms a mounting space for mounting the blade. The cutter head includes a first side and a second side. The blade faces the first side. The first side and the second side communicate with the mounting space. The cutter head has a closed end and an open end. The mounting arm and the support arm are fixedly connected at the closed end. The support arm protrudes away from the mounting arm at the closed end. The mounting arm and the support arm are movably connected to the knife arm part at the open end.

[0007] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By arranging the mounting arm to be inclined away from the knife arm part and arranging the blade on the side of the mounting arm away from the knife arm part, the amount of rubber output during rubber tapping by the blade is large; by arranging the support arm to protrude away from the mounting arm at the closed end, the installation space of the blade is expanded, which is convenient for replacing the blade; the mounting arm and the support arm are movably connected to the knife arm part at the open end, which can ensure the stability of the cutter head when cutting the rubber tree, and can rotate adaptively according to the uneven surface of the tree, so as to keep the cutting depth of the blade stable.

[0008] In some embodiments, the support arm includes a first support arm and a second support arm. The first support arm is fixedly connected to the mounting arm, and the second support arm is movably connected to the blade arm portion. An installation space for installing the blade is formed between the first support arm and the second support arm, and one end where the first support arm and the second support arm are connected protrudes in a direction away from the mounting arm.

[0009] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: One end where the first support arm and the second support arm are connected protrudes in a direction away from the mounting arm, which expands the installation space of the blade and also expands the passing space for the bark.

[0010] In some embodiments, the negative knife holder further includes a backing portion, which is arranged on the second side and is connected to the second support arm.

[0011] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The backing portion is arranged on the second side and is connected to the second support arm, so that the bark cut by the blade can fall downward through the backing portion.

[0012] In some embodiments, the backing portion includes a guiding portion, which is inclined in a direction away from the mounting arm, and the upper surface of the guiding portion is flush with the upper surface of the second support arm.

[0013] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The guiding portion is inclined and flush with the upper surface of the second support arm, and the guiding portion can guide the cut bark to fall in a direction away from the rubber tapping device, preventing the bark from falling into the rubber tapping device and causing damage to the rubber tapping device.

[0014] In some embodiments, the backing portion further includes a rotation stopping portion, which is arranged at the bottom of the second support arm and extends toward the first side.

[0015] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The rotation stopping portion arranged at the bottom of the second support arm can prevent the backing portion from rotating, keeping the backing portion stable.

[0016] In some embodiments, the blade arm portion includes a tool head connecting piece, which is used to connect the mounting arm. One end of the tool head connecting piece is detachably connected to the blade arm portion, the other end of the tool head connecting piece is rotatably connected to the mounting arm, and one end of the tool head connecting piece connected to the mounting arm protrudes in a direction away from the installation space.

[0017] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The cutter head connecting piece is provided with a detachable structure. When the cutter head part is damaged, the cutter head part can be replaced in time without replacing the cutter arm part, which improves the service life of the rubber tapping device. One end of the cutter head connecting piece connected to the mounting arm protrudes away from the mounting space, so that the cut bark can be discharged in time, avoiding blockage and damage to the rubber tapping device.

[0018] In some embodiments, the female cutter holder further includes an elastic member. One end of the cutter head connecting piece connected to the cutter arm part is provided with a first connection position. One end of the elastic member is connected to the first connection position, and the mounting arm has a second connection position. The other end of the elastic member is connected to the second connection position.

[0019] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: On the one hand, through the arrangement of the elastic member, the cutter head part is tightened on the surface of the object to be tapped, so that the cutter head part can perform the rubber tapping action better. When the cutter head part moves during rubber tapping, the cutter head part is pressed against the rubber tree under the elastic force of the spring; on the other hand, the elastic member can keep the relative positions of the cutter head part and the cutter arm part stable.

[0020] In some embodiments, the mounting arm has a recess on the first side, and the recess conforms to the shape of the object to be tapped.

[0021] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: Since the outer surface shape of the rubber tree is inconsistent and uneven, through the arrangement of the recess, the mounting arm can be fitted to the rubber tree and completely abutted against the rubber tree, which is convenient for cutting.

[0022] In some embodiments, the female cutter holder further includes an adjusting member, and the adjusting member can adjust the length of the blade protruding from the mounting arm.

[0023] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By setting the adjusting member to adjust the length of the blade protruding from the mounting arm, it is convenient to control the cutting depth of the blade, which will not cause damage to the rubber tree due to excessive cutting, nor will it be cut too shallow, which is convenient for operation.

[0024] The present invention also provides a rubber tapping device, which includes the female cutter holder according to any one of the above embodiments. The rubber tapping device drives the female cutter holder to cut the object to be tapped through the blade.

[0025] Compared with the prior art, the technical effects achieved by adopting this technical solution: The rubber tapping device of the technical solution of the present utility model has a female knife holder as in any technical solution of the present utility model, and thus has all the beneficial effects as in any technical solution of the present utility model, which will not be elaborated here.

[0026] In summary, each of the above technical solutions of the present application may have one or more of the following advantages or beneficial effects: 1) By arranging the mounting arm to incline away from the knife arm part, and arranging the blade on the side of the mounting arm away from the knife arm part, the amount of rubber flowing out during rubber tapping by the blade is large; 2) By arranging the support arm to protrude away from the mounting arm at the closed end, the installation space of the blade is enlarged, facilitating the replacement of the blade, and the bark after cutting can easily pass through; 3) The backrest part is arranged on the second side and is connected to the second support arm, and the bark cut by the blade can fall away from the rubber tapping device under the guidance of the backrest part, avoiding the bark falling into the rubber tapping device and causing damage to the rubber tapping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Structural schematic diagram of the female knife holder according to an embodiment of the present utility model;

[0028] Figure 2 Structural schematic diagram of the knife head part according to an embodiment of the present utility model;

[0029] Figure 3 Structural schematic diagram of the knife head part according to another embodiment of the present utility model;

[0030] Figure 4 Structural schematic diagram of the knife arm part according to an embodiment of the present utility model;

[0031] Figure 5 Structural schematic diagram of the backrest part according to an embodiment of the present utility model.

[0032] Description of the reference numerals:

[0033] 100, knife arm part; 110, knife head connecting piece; 111, first connection position; 120, first connection hole; 130, second connection hole; 200, knife head part; 210, mounting arm; 211, second connection position; 212, recessed part; 213, first rotating shaft; 214, installation groove; 215, pressing piece; 220, support arm; 221, first support arm; 222, second support arm; 223, second rotating shaft; 300, blade; 400, backrest part; 410, guiding part; 420, anti-rotation part; 500, adjusting piece; 600, elastic piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will provide a detailed description of the specific embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0035] The following refers to Figures 1 to 5 Describe the technical solutions of some embodiments of the present utility model.

[0036] Refer to the attached Figure 1 As shown, the present utility model provides a female knife holder, which is arranged on a rubber tapping device for cutting an object to be cut. The female knife holder includes:

[0037] A knife arm portion 100, which is rotatably connected to the rubber tapping device;

[0038] A knife head portion 200, which includes a mounting arm 210 and a support arm 220. The mounting arm 210 is used for mounting a blade 300. The mounting arm 210 is inclined away from the knife arm portion 100. The blade 300 is arranged on the side of the mounting arm 210 away from the knife arm portion 100. An installation space for mounting the blade 300 is formed on the side of the mounting arm 210 away from the knife arm portion 100. The knife head portion 200 includes a first side and a second side. The blade 300 faces the first side. The first side and the second side communicate with the installation space. The knife head portion 200 has a closed end and an open end. The mounting arm 210 and the support arm 220 are fixedly connected at the closed end. The support arm 220 protrudes away from the mounting arm 210 at the closed end. The mounting arm 210 and the support arm 220 are movably connected to the knife arm portion 100 at the open end.

[0039] Optionally, the shape of the knife arm portion 100 can be set as a plate shape, which can provide better anti-deformation ability, thereby reducing the deformation amount of the up and down offset of the knife head portion 200 and making the rubber tapping device more stable.

[0040] Specifically, the mounting arm 210 is inclined away from the knife arm portion 100, and the blade 300 is arranged on the side of the mounting arm 210 away from the knife arm portion 100. With this setting, the amount of rubber flowing out during rubber tapping by the blade 300 can be increased.

[0041] Specifically, the knife head portion 200 includes a first side and a second side, and the blade 300 faces the first side, that is, the first side is the side close to the rubber tree to be tapped, and the second side is the side away from the rubber tree to be tapped.

[0042] Refer to the attached Figure 2 And the attached Figure 3As shown, specifically, the mounting arm 210 is provided with a first rotating shaft 213 at the open end, the support arm 220 is provided with a second rotating shaft 223 at the open end, the cutter arm portion 100 is provided with a first connection hole 120 and a second connection hole 130. The first connection hole 120 is fitted and connected to the first rotating shaft 213, and the second connection hole 130 is fitted and connected to the second rotating shaft 223, so that the two shaft bodies are inserted into the cutter arm portion 100, so that the cutter head 200 is fastened to the cutter arm portion 100. Thus, when cutting the rubber tree, the stability of the cutter head 200 can be ensured, and it can rotate adaptively according to the uneven surface of the tree, so as to keep the cutting depth of the blade 300 stable.

[0043] Specifically, the mounting arm 210 of the cutter head 200 is used to fix the blade 300. The blade 300 is the blade 300 used for rubber tapping of the rubber tree. An installation groove 214 is provided on the mounting arm 210. The blade 300 is accommodated in the installation groove 214. The mounting arm 210 further includes a pressing member 215. The pressing member 215 presses the blade 300 in the installation groove 214. In the case of rubber tapping, the mounting arm 210 of the cutter head 200 abuts against the rubber tree, and the rubber tree is tapped by the blade 300 mounted on the mounting arm 210.

[0044] Specifically, the support arm 220 protrudes away from the mounting arm 210. This structure expands the installation space of the blade 300, facilitating the replacement of the blade 300; the mounting arm 210 and the support arm 220 are movably connected to the cutter arm portion 100 at the open end, which can ensure the stability of the cutter head 200 when cutting the rubber tree, and can rotate adaptively according to the uneven surface of the tree, so as to keep the cutting depth of the blade 300 stable.

[0045] Refer to the appendix Figure 2 and the appendix Figure 3 As shown, in some embodiments, the support arm 220 includes a first support arm 221 and a second support arm 222. The first support arm 221 is fixedly connected to the mounting arm 210, and the second support arm 222 is movably connected to the cutter arm portion 100. An installation space for installing the blade 300 is formed between the first support arm 221 and the second support arm 222. One end where the first support arm 221 and the second support arm 222 are connected protrudes away from the mounting arm 210.

[0046] Specifically, one end where the first support arm 221 and the second support arm 222 are connected protrudes away from the mounting arm 210, expanding the installation space of the blade 300 and the passing space of the bark.

[0047] Refer to the appendix Figures 1 - 3 As shown, in some embodiments, the female knife holder further includes a backing portion 400. The backing portion 400 is provided on the second side, and the backing portion 400 is connected to the second support arm 222.

[0048] See the attached Figure 5 As shown, in some embodiments, the backing portion 400 includes a guiding portion 410 which is inclined away from the mounting arm 210, and the upper surface of the guiding portion 410 is flush with the upper surface of the second support arm 222.

[0049] Specifically, the backing portion 400 is arranged on the second side and is threadedly connected to the second support arm 222. The bark cut by the blade 300 can fall downward through the backing portion 400. The guiding portion 410 is an inclined surface sloping downward, and the upper surface of the guiding portion 410 is flush with the upper surface of the second support arm 222. The guiding portion 410 can guide the cut bark to fall away from the rubber tapping device, preventing the bark from falling into the rubber tapping device and causing damage to the rubber tapping device.

[0050] See the attached Figure 3 and the attached Figure 5 As shown, in some embodiments, the backing portion 400 further includes an anti-rotation portion 420 which is arranged at the bottom of the second support arm 222 and extends towards the first side.

[0051] Specifically, the anti-rotation portion 420 is arranged at the bottom of the second support arm 222, which can prevent the backing portion 400 from rotating when the thread between the backing portion 400 and the second support arm 222 becomes loose, so that the backing portion 400 remains stable.

[0052] See the attached Figure 1 and the attached Figure 4 As shown, in some embodiments, the cutter arm portion 100 includes a cutter head connecting member 110 which is used to connect the mounting arm 210. One end of the cutter head connecting member 110 is detachably connected to the cutter arm portion 100, the other end of the cutter head connecting member 110 is rotatably connected to the mounting arm 210, and the end of the cutter head connecting member 110 connected to the mounting arm 210 protrudes away from the mounting space.

[0053] Specifically, the cutter head connecting member 110 is detachably connected to the cutter arm portion 100, and can adopt screw connection, riveting or nut and bolt connection. The cutter head connecting member 110 is arranged through a detachable structure. When the cutter head portion 200 is damaged, the cutter head portion 200 can be replaced in time without replacing the cutter arm portion 100, which improves the service life of the rubber tapping device.

[0054] Optionally, the cutter head connector 110 can be set in a stepped shape. One end of the cutter head connector 110 connected to the mounting arm 210 protrudes away from the mounting space. The cutter head connector 110 is used to press the cutter head part 200 against the cutter arm part 100. One end of the cutter head connector 110 is connected to the cutter arm part 100, and a first connection hole 120 is provided at the other end of the cutter head connector 110. Specifically, the process of installing the cutter head part 200 can be as follows: First, after mating the first rotating shaft 213 of the mounting arm 210 with the first connection hole 120 of the cutter head connector 110, mate the second connection hole 130 of the cutter arm part 100 with the second rotating shaft 223. After mating, connect the cutter head connector 110 to the cutter arm part 100 and fasten the cutter head connector 110 to the cutter arm part 100, thereby pressing the cutter head part 200 against the cutter arm part 100.

[0055] Refer to the appendix Figure 2 and the appendix Figure 4 As shown, in some embodiments, the female cutter holder further includes an elastic member 600. A first connection position 111 is provided at one end of the cutter head connector 110 connected to the cutter arm part 100. One end of the elastic member 600 is connected to the first connection position 111, and the mounting arm 210 has a second connection position 211. The other end of the elastic member 600 is connected to the second connection position 211.

[0056] Specifically, an elastic member 600 is connected between the cutter head part 200 and the cutter arm part 100. The cutter head connector 110 has a first connection position 111, and the first connection position 111 is located on the second side of the cutter head part 200. The mounting arm 210 has a second connection position 211, and the second connection position 211 is also located on the second side of the cutter head part 200. One end of the elastic member 600 is connected to the first connection position 111, and the other end of the elastic member 600 is connected to the second connection position 211. For example, the elastic member 600 can be a tension spring, a thrust spring or a torsion spring. Through the setting of the elastic member 600, when the cutter head part 200 moves during rubber tapping, under the action of the elastic force of the tension spring, the cutter head part 200 is pressed against the rubber tree, and the elastic member 600 can keep the relative positions of the cutter head part 200 and the cutter arm part 100 stable.

[0057] Refer to the appendix Figure 3 As shown, in some embodiments, the mounting arm 210 has a recess 212 on the first side, and the recess 212 fits the shape of the object to be cut.

[0058] Specifically, the two sides of the recess 212 have a first abutting portion and a second abutting portion. Since the outer surface shape of the rubber tree is inconsistent and uneven, the first abutting portion and the second abutting portion can completely abut against the surface of the rubber tree, and the shape of the recess 212 can fit the shape of the rubber tree. During the cutting process by the blade 300, the force can be better applied to the blade 300 to facilitate the cutting of the rubber tree by the blade 300.

[0059] Refer to the appendix Figure 1 As shown, in some embodiments, the female knife holder further includes an adjusting member 500, and the adjusting member 500 can adjust the length of the blade 300 extending out of the mounting arm 210.

[0060] Specifically, one end of the adjusting member 500 abuts against the blade 300, and the other end of the adjusting member 500 is connected to the tool head 200. By adjusting the adjusting member 500, the blade 300 can be pushed to extend towards the object to be cut, so as to adjust the position of the blade 300 relative to the mounting arm 210. By setting the adjusting member 500, the length of the blade 300 extending out of the mounting arm 210 can be adjusted, which is convenient for controlling the cutting depth of the blade 300, and it will not damage the rubber tree due to excessive cutting, nor will it be cut too shallow, which is convenient for operation.

[0061] The present utility model also provides a rubber tapping device, which includes a female knife holder according to any one of the above embodiments. The rubber tapping device drives the female knife holder, so that the object to be cut is cut by the blade 300.

[0062] Specifically, the rubber tapping mechanism includes a female knife holder. After the rubber tapping mechanism abuts against the rubber tree through the female knife holder, by driving the female knife holder to move relative to the rubber tree, the blade 300 cuts the rubber tree, thereby realizing rubber tapping. The female knife holder expands the installation space of the blade 300, which is convenient for replacing the blade 300. The cut bark can be discharged in time, avoiding the bark falling into the rubber receiving groove and preventing blockage, which may cause damage to the rubber tapping device.

[0063] The above description is intended to be illustrative rather than restrictive. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of their solutions) can be used in combination with each other, and considering these embodiments, they can be combined with each other in various combinations or arrangements.

Claims

1. A female knife holder, which is arranged on a rubber tapping device for cutting an object to be cut, and is characterized in that, The female knife holder includes a knife arm part (100) which is rotatably connected to the rubber tapping device; a knife head part (200) which includes a mounting arm (210) and a support arm (220). The mounting arm (210) is used for mounting a blade (300). The mounting arm (210) is inclined away from the knife arm part (100). The blade (300) is arranged on the side of the mounting arm (210) away from the knife arm part (100). An installation space for mounting the blade (300) is formed on the side of the mounting arm (210) away from the knife arm part (100). The knife head part (200) includes a first side and a second side. The blade (300) faces the first side. The first side and the second side communicate with the installation space. The knife head part (200) has a closed end and an open end. The mounting arm (210) and the support arm (220) are fixedly connected at the closed end. The support arm (220) protrudes away from the mounting arm (210) at the closed end. The mounting arm (210) and the support arm (220) are movably connected to the knife arm part (100) at the open end.

2. The negative knife holder according to claim 1, characterized in that, The support arm (220) includes a first support arm (221) and a second support arm (222). The first support arm (221) is fixedly connected to the mounting arm (210). The second support arm (222) is movably connected to the knife arm part (100). An installation space for mounting the blade (300) is formed between the first support arm (221) and the second support arm (222). One end where the first support arm (221) and the second support arm (222) are connected protrudes away from the mounting arm (210).

3. The negative knife holder according to claim 2, characterized in that, The female knife holder further includes a backing part (400) which is arranged on the second side and is connected to the second support arm (222).

4. The negative knife holder according to claim 3, characterized in that, The backing part (400) includes a guiding part (410) which is inclined away from the mounting arm (210). The upper surface of the guiding part (410) is flush with the upper surface of the second support arm (222).

5. The female knife holder according to claim 4, characterized in that, The backing part (400) further includes a rotation stopping part (420) which is arranged at the bottom of the second support arm (222) and extends towards the first side.

6. The negative knife holder according to claim 1, characterized in that, The knife arm part (100) includes a knife head connecting piece (110) which is used for connecting the mounting arm (210). One end of the knife head connecting piece (110) is detachably connected to the knife arm part (100). The other end of the knife head connecting piece (110) is rotatably connected to the mounting arm (210). One end of the knife head connecting piece (110) connected to the mounting arm (210) protrudes away from the installation space.

7. A negative knife holder according to claim 6, characterized in that, The female knife holder further includes an elastic member (600). One end of the tool bit connecting member (110) connected to the tool arm portion (100) is provided with a first connection position (111). One end of the elastic member (600) is connected to the first connection position (111). The mounting arm (210) has a second connection position (211). The other end of the elastic member (600) is connected to the second connection position (211).

8. A negative knife tool holder according to claim 1, characterized in that, The mounting arm (210) has a recessed portion (212) on the first side, and the recessed portion (212) conforms to the shape of the object to be cut.

9. The male knife tool post according to claim 1, characterized in that, The female knife holder further includes an adjusting member (500), and the adjusting member (500) can adjust the length of the blade (300) extending out of the mounting arm (210).

10. A rubber tapping device, characterized in that, The rubber tapping device includes the female knife holder according to any one of claims 1 to 9. The rubber tapping device drives the female knife holder, so as to cut the object to be cut through the blade (300).

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