Adjusting and positioning device for bar pressing strip of rotary cutter

Abstract

The utility model relates to a rotary cutter bar pressing strip adjusting and positioning device which comprises a bar pressing beam, and the front side of the bar pressing beam is connected with a plurality of bar pressing strips arranged at intervals in the transverse direction. The upper end of the bar pressing strip is attached to the bar pressing beam, a supporting protruding part abutting against the rear side face of the bar pressing strip is arranged on the lower side of the bar pressing beam, an adjusting gap is reserved between the bar pressing strip and the bar pressing beam and located between the upper end of the bar pressing strip and the supporting protruding part, and an adjusting bolt is connected to the position, above the supporting protruding part, between the bar pressing strip and the bar pressing beam. The adjusting and positioning device for the bar pressing strip of the rotary cutter is novel in structure, reasonable in design and high in practicability, the position of the bar pressing strip and the distance between the bar pressing strip and the cutting edge of the cutter can be adjusted according to needs, then the thickness of a veneer is adjusted, the surface smoothness of the veneer is improved, and production efficiency is improved. And the insufficient straightness of the cutting edge, the abrasion of the bar pressing strip and the pre-deformation of the bar pressing strip are compensated.

Description

Technical Field

[0001] The utility model relates to the field of rotary cutting machines, in particular to a pressure ruler bar adjusting and positioning device for rotary cutting machines. Background Art

[0002] Chinese patent CN217372724U discloses a composite pressure ruler beam for a shaftless peeling machine, which is applied to a shaftless peeling machine to enable the shaftless peeling machine to have a thickness determination function. Multiple pressure rulers arranged in a row are inserted between a single drive roller and the wood to achieve high-precision multi-point thickness determination to solve the problems existing in the existing shaftless peeling machine with a single drive roller. However, the installation method of the pressure ruler is to directly use bolts to fix the connection, and the position of the pressure ruler cannot be adjusted, resulting in the inability to adjust the distance between the pressure ruler and the cutting blade. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a pressure bar adjustment and positioning device for a rotary cutter, which can adjust the position of the pressure bar and the distance between the pressure bar and the cutting blade.

[0004] The utility model is implemented by the following scheme: a pressure ruler bar adjustment and positioning device for a rotary cutting machine comprises a pressure ruler beam, a plurality of pressure ruler bars arranged at intervals in the transverse direction are connected to the front side of the pressure ruler beam; the upper end of the pressure ruler bar is close to the pressure ruler beam, a supporting convex portion is provided on the lower side of the pressure ruler beam to press against the rear side of the pressure ruler bar, an adjustment gap is left between the pressure ruler bar and the pressure ruler beam at a position between the upper end of the pressure ruler bar and the supporting convex portion, and an adjusting bolt is connected between the pressure ruler bar and the pressure ruler beam at a position above the supporting convex portion.

[0005] Furthermore, a key slot is provided at the rear side of the upper end of the pressure bar, and a transverse groove corresponding to the position of the key slot is provided at the front side of the pressure bar beam. A positioning key is embedded in the transverse groove and cooperates with the key slot.

[0006] Furthermore, a first bolt hole is opened at the upper end of the pressure ruler bar, and a first threaded hole corresponding to the position of the first bolt hole is opened on the front side of the pressure ruler beam. A connecting bolt is passed through the first bolt hole, and the rod of the connecting bolt is threadedly connected to the first threaded hole.

[0007] Furthermore, a second bolt hole for the adjusting bolt to pass through is opened in the middle of the pressure ruler bar, a second threaded hole corresponding to the position of the second bolt hole is opened on the front side of the pressure ruler beam, and the rod of the adjusting bolt is threadedly connected to the second threaded hole.

[0008] Furthermore, the pressure gauge bar is provided with a third threaded hole above the adjusting bolt, a stop bolt is threadedly connected in the third threaded hole, and the rear end of the rod of the stop bolt presses against the front side of the pressure gauge beam.

[0009] Furthermore, a strength weakening groove is provided on the rear side of the pressure bar near the upper end.

[0010] Furthermore, a wear-resistant block is provided on the front side of the lower end of the pressure ruler bar.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the pressure bar adjustment and positioning device of the rotary cutter of the utility model has a novel structure, a reasonable design, and strong practicality. The position of the pressure bar can be adjusted as needed, and the distance between the pressure bar and the cutting blade can be adjusted, thereby adjusting the thickness of the veneer, improving the smoothness of the veneer surface, and compensating for the insufficient straightness of the blade, the wear of the pressure bar, and the pre-deformation of the pressure bar.

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall structure of the pressure ruler beam in the embodiment of the utility model;

[0014] Figure 2 yes Figure 1 The enlarged schematic diagram at A in the middle;

[0015] Figure 3 It is a partial cross-sectional view of an embodiment of the utility model;

[0016] Figure 4 This is a three-dimensional diagram of the pressure ruler strip of the embodiment of the utility model;

[0017] Figure 5 This is a schematic diagram of the positions of the pressure bar and the cutter in the embodiment of the utility model;

[0018] Explanation of the numbers in the figure: 100-pressure gauge beam, 110-supporting protrusion, 120-adjusting gap, 130-transverse groove, 200-pressure gauge bar, 210-adjusting bolt, 220-keyway, 230-connecting bolt, 240-stop bolt, 250-strength weak groove, 260-wear-resistant block, 270-transverse gap, 280-clamping part, 300-cutter. DETAILED DESCRIPTION

[0019] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] like Figures 1 to 5 As shown, a pressure bar adjustment and positioning device for a rotary cutting machine includes a pressure bar beam 100, and a plurality of pressure bar bars 200 arranged at intervals in the transverse direction are connected to the front side of the pressure bar beam; the upper end of the pressure bar bar 200 is attached to the pressure bar beam, and a supporting protrusion 110 is provided on the lower side of the pressure bar beam to press against the rear side of the pressure bar; an adjustment gap 120 is left between the pressure bar bar 200 and the pressure bar beam 100 at the position between the upper end of the pressure bar bar and the supporting protrusion, and an adjusting bolt 210 is connected between the pressure bar bar and the pressure bar beam at the position above the supporting protrusion. The utility model can realize the deformation adjustment of the pressure bar, and the pressure bar bar uses the supporting protrusion 110 as a fulcrum, similar to the principle of a lever, and the upper part of the pressure bar is pressed backward by the adjusting bolt 210, so that the lower end of the pressure bar moves forward to produce deformation; when the adjusting bolt 210 is loosened, the lower end of the pressure bar moves backward to restore the deformation.

[0022] The adjustment of the pressure gauge strip can achieve the following functions: (1) It can adjust the distance between the pressure gauge strip and the cutting blade, thereby adjusting the thickness of the veneer; (2) It can solve the problem of the surface finish of the veneer, especially the scar position; (3) It can compensate for the lack of straightness of the blade to ensure that the distance width between all pressure gauge strips and the cutting blade is consistent; (4) It can compensate for the wear of the pressure gauge strip and the pre-deformation of the pressure gauge strip.

[0023] In this embodiment, a key slot 220 is provided on the rear side of the upper end of the pressure ruler bar 200, and a transverse groove 130 corresponding to the position of the key slot is provided on the front side of the pressure ruler beam. A positioning key (not shown in the figure) is embedded in the transverse groove 130 and cooperates with the key slot. The positioning key can effectively position the installation height of the pressure ruler bar so that all pressure rulers are installed at the same height.

[0024] In this embodiment, a first bolt hole is opened at the upper end of the pressure ruler bar 200, and a first threaded hole corresponding to the position of the first bolt hole is opened on the front side of the pressure ruler beam. A connecting bolt 230 is passed through the first bolt hole, and the rod of the connecting bolt is threadedly connected to the first threaded hole.

[0025] In this embodiment, a second bolt hole for the adjusting bolt to pass through is opened in the middle of the pressure ruler bar, a second threaded hole corresponding to the position of the second bolt hole is opened on the front side of the pressure ruler beam, and the rod of the adjusting bolt is threadedly connected to the second threaded hole.

[0026] In this embodiment, in order to cooperate with the adjustment bolt for adjustment, the pressure ruler bar is provided with a third threaded hole above the adjustment bolt, and a stop bolt 240 is threadedly connected in the third threaded hole, and the rear end of the rod of the stop bolt presses against the front side of the pressure ruler beam. When the pressure ruler bar needs to be adjusted forward, the stop bolt 240 is loosened at this time, and the upper part of the pressure ruler bar is pressed backward by the adjustment bolt 210, so that the lower end of the pressure ruler bar will move forward and deform. After the adjustment of the adjustment bolt 210 is completed, the stop bolt 240 is tightened again to make its rod press against the front side of the pressure ruler beam to stabilize the position of the pressure ruler bar; when the pressure ruler bar needs to be adjusted backward, when the adjustment bolt 210 is loosened, the lower end of the pressure ruler bar will move backward to restore the deformation. After the adjustment of the adjustment bolt 210 is completed, the stop bolt 240 is tightened again to make its rod press against the front side of the pressure ruler beam to stabilize the position of the pressure ruler bar.

[0027] In this embodiment, a strength weakening groove 250 is provided near the upper end of the rear side of the pressure bar. The provision of the strength weakening groove 250 can weaken the strength of the pressure bar at this position, so that the pressure bar has sufficient strength and is also easy to deform and adjust.

[0028] In this embodiment, a wear-resistant block 260 is provided at the front side of the lower end of the pressure bar. The wear-resistant block is made of alloy material, which can slow down the wear of the pressure bar.

[0029] In this embodiment, a transverse through groove is provided on the front side of the lower end of the pressure ruler bar, and the wear-resistant block 260 is located in the transverse through groove. A transverse gap 270 is provided on the rear side wall of the transverse through groove 270, which extends backward but does not pass through the rear side of the pressure ruler bar. The transverse gap separates a clamping portion 280 at the lower end of the pressure rack, and the rear end of the clamping portion is still connected to the pressure rack as a whole. A locking bolt threadedly connected to the pressure rack is vertically penetrated along the upper edge of the clamping portion so that the clamping portion clamps the wear-resistant block 260.

[0030] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values ​​to be exhaustive, the utility model discloses only some numerical values ​​to illustrate the technical solution of the utility model, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the utility model.

[0031] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0032] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.

[0033] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0034] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A pressure bar adjustment and positioning device for a rotary cutting machine, comprising a pressure bar beam, a plurality of pressure bars arranged at intervals in the transverse direction are connected to the front side of the pressure bar beam; characterized in that: The upper end of the pressure ruler bar is attached to the pressure ruler beam, and a supporting protrusion is provided on the lower side of the pressure ruler beam to press against the rear side of the pressure ruler bar. An adjustment gap is left between the upper end of the pressure ruler bar and the supporting protrusion between the pressure ruler bar and the pressure ruler beam, and an adjusting bolt is connected between the pressure ruler bar and the pressure ruler beam at a position above the supporting protrusion.

2. The pressure bar adjustment and positioning device for a rotary cutting machine according to claim 1, characterized in that: A key slot is provided at the rear side of the upper end of the pressure bar, and a transverse groove corresponding to the position of the key slot is provided at the front side of the pressure bar beam. A positioning key is embedded in the transverse groove and matched with the key slot.

3. The pressure bar adjustment and positioning device for a rotary cutting machine according to claim 2, characterized in that: A first bolt hole is opened at the upper end of the pressure ruler bar, and a first threaded hole corresponding to the position of the first bolt hole is opened on the front side of the pressure ruler beam. A connecting bolt is passed through the first bolt hole, and the rod of the connecting bolt is threadedly connected to the first threaded hole.

4. The pressure bar adjusting and positioning device for a rotary cutting machine according to claim 1, characterized in that: A second bolt hole for the adjusting bolt to pass through is opened in the middle of the pressure bar, a second threaded hole corresponding to the position of the second bolt hole is opened on the front side of the pressure bar beam, and the rod of the adjusting bolt is threadedly connected in the second threaded hole.

5. The pressure bar adjusting and positioning device for a rotary cutting machine according to claim 1 or 4, characterized in that: The pressure bar is provided with a third threaded hole above the adjusting bolt, a stop bolt is threadedly connected in the third threaded hole, and the rear end of the rod of the stop bolt presses against the front side of the pressure bar beam.

6. The pressure bar adjusting and positioning device for a peeling machine according to claim 1, characterized in that: A strength weakening groove is provided on the rear side of the pressure bar near the upper end.

7. The pressure bar adjusting and positioning device for a rotary cutting machine according to claim 1, characterized in that: A wear-resistant block is arranged on the front side of the lower end of the pressure ruler strip.

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