A centering mechanism for a bamboo breaking device

Abstract

A centering mechanism for a bamboo splitting device includes a main shaft, a conical head is arranged at the front end of the main shaft, and an annular groove is arranged in the middle of the main shaft; a tensioning mechanism is sleeved on the annular groove, and the tensioning mechanism is used to keep the bamboo section to be processed and the main shaft coaxial. The centering mechanism in the present invention ensures that the bamboo section to be processed and the main shaft are coaxial by setting a tensioning mechanism. The tensioning mechanism includes a column and more than two adjustment brackets, and the adjustment brackets are composed of two connecting rods. The column and the adjustment bracket form a simple and reliable pure mechanical structure, which does not require a driving device such as a cylinder or a motor, has a good centering effect, and does not require additional energy supply.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, and in particular to a centering mechanism for a bamboo breaking device. Background Art

[0002] my country has abundant bamboo resources. Compared with wood, bamboo shrinks less, has higher elasticity and toughness, and has better compression and tensile properties along the grain. In addition, bamboo grows fast and has high yield. It has been one of the commonly used materials since ancient times. From small items such as bowls and chopsticks to large items such as houses and buildings, bamboo can be seen. It can be seen that the processing and utilization of bamboo has long been involved in many aspects of people's daily lives.

[0003] The processing operations for bamboo mainly include felling, segmenting, removing inner nodes, breaking strips, polishing, carving, painting, etc. Among them, the strip breaking operation is to cut the cylindrical bamboo segments that have been cut into a certain length and removed from the inner nodes into several long bamboo petals (i.e. bamboo strips). In this process, the most important control point is to ensure that the width of each bamboo strip is as equal as possible; and to achieve this technical effect, the center of the bamboo tube must be coaxial with the center of the bamboo breaking knife. At present, there are special strip-breaking processing equipment for bamboo strip-breaking. For example, CN107414986A discloses a continuous bamboo-breaking device with automatic feeding and fast centering, which includes a bamboo segment feeding mechanism, a bamboo-breaking knife disc mechanism, a bamboo-pushing mechanism, a bamboo segment grabbing mechanism and a bamboo segment diameter detection mechanism on a frame. In particular, the bamboo segment grabbing mechanism includes two clamps, each of which includes two clamping arms arranged up and down. The two clamping arms are connected to a slider connected to a cylinder through a connecting rod mechanism. The cylinder reciprocates, and the upper and lower clamping arms close and separate to send the bamboo segment to the bamboo-breaking path. In this invention, multiple clamps are required to achieve the centering of the bamboo segment, which requires more components and requires additional driving force for the clamps, resulting in a high operating cost of the device. In view of this, the present application aims to provide a centering mechanism for bamboo-breaking equipment, which has a simple structure, good centering effect, and does not require additional energy, and is energy-saving and environmentally friendly. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a centering mechanism for a bamboo breaking device, which has a simple structure and is energy-saving and environmentally friendly.

[0005] The technical solution of the present invention is: a centering mechanism for a bamboo breaking device, including a main shaft, a conical head is arranged at the front end of the main shaft, and an annular groove is arranged in the middle of the main shaft; a tensioning mechanism is sleeved on the annular groove, and the tensioning mechanism is used to keep the bamboo section to be processed coaxial with the main shaft.

[0006] Furthermore, the conical head is connected to the main shaft through a threaded structure, and the distance from the conical head to the rear end of the main shaft can be adjusted by rotation.

[0007] Furthermore, the tensioning mechanism includes a column and an adjusting bracket, wherein a through hole is provided at the axial center of the column, and the column is sleeved in the middle of the main shaft through the through hole and is coaxial with the main shaft.

[0008] Furthermore, a slot is provided on the side wall of the column, and the slot is communicated with the through hole space, and sliding grooves are provided on the two long side walls of the slot.

[0009] Furthermore, there are two notches, and the two notches are symmetrically arranged about the central axis of the cylinder.

[0010] Furthermore, the adjustment bracket is composed of two connecting rods, and the two connecting rods are hinged.

[0011] Furthermore, the adjusting bracket is installed in the slot, one end of the adjusting bracket is rotatably connected to the inner wall of the slot, and the other end of the adjusting bracket is installed in the slide groove through a slider, and the slider is limited to move in the slide groove.

[0012] Furthermore, there are two adjusting brackets, which are symmetrically arranged. There may also be more than two adjusting brackets, which are evenly arranged along the circumference of the main axis.

[0013] Further, the slider is fixedly connected to the rear end of the main shaft. Preferably, the slider is connected to the rear end of the main shaft through a wire rod, and a wire hole is provided on the end surface of the cylinder away from the conical head, and the wire rod passes through the wire hole to connect the main shaft and the slider.

[0014] Furthermore, an elastic member is provided between the conical head and the end surface opposite to the column, and an elastic member is provided between the end surface opposite to the main shaft.

[0015] Furthermore, the elastic member is a spring or a spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the centering mechanism in the present invention ensures that the bamboo segment to be processed remains coaxial with the main shaft by setting a tensioning mechanism, the tensioning mechanism includes a column and more than two adjustment brackets, the adjustment brackets are composed of two connecting rods, the column and the adjustment brackets form a simple and reliable pure mechanical structure, does not require driving devices such as cylinders or motors, has a good centering effect, and does not require additional energy supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of embodiment 1 of the present invention;

[0018] Figure 2 is a front view of embodiment 1 of the present invention;

[0019] Figure 3 is a cross-sectional schematic diagram of embodiment 1 of the present invention;

[0020] Figure 4is a schematic diagram of a column in Example 1 of the present invention;

[0021] Figure 5 It is a schematic diagram of a state when the tensioning mechanism in Example 1 of the present invention is working;

[0022] Figure 6 is another schematic diagram of the state of the tensioning mechanism in Example 1 of the present invention when it is working;

[0023] Figure 7 is a three-dimensional schematic diagram of a column of a tensioning mechanism in Embodiment 2 of the present invention;

[0024] Figure 8 is a three-dimensional schematic diagram of the tensioning mechanism in Embodiment 2 of the present invention;

[0025] In the figure: 1-spindle, 2-conical head, 3-column, 31-through hole, 32-slot, 33-slide, 34-thread hole, 4-adjusting bracket, 5-spring, 6-wire rod. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art.

[0027] Example 1

[0028] like Figure 1-4 As shown, this embodiment is a centering mechanism for a bamboo splitting device, comprising a main shaft 1, a conical head 2 is arranged at the front end of the main shaft 1, and an annular groove is arranged in the middle of the main shaft 1; a tensioning mechanism is sleeved on the annular groove, and the tensioning mechanism is used to keep the bamboo segment to be processed coaxial with the main shaft 1. In this embodiment, the conical head 2 is connected to the main shaft 1 through a threaded structure, and the distance from the conical head 2 to the rear end of the main shaft 1 can be adjusted by rotation.

[0029] In this embodiment, the tensioning mechanism includes a column 3 and an adjustment bracket 4. A through hole 31 is provided at the axial center of the column 3. The column 3 is sleeved in the middle of the main shaft 1 through the through hole 31 and is coaxial with the main shaft 1. A notch 32 is provided on the side wall of the column 3, and the notch 32 is connected to the space of the through hole 31. Slide grooves 33 are provided on the two long side walls of the notch 32. There are two notches 32, and the two notches 32 are symmetrically arranged about the central axis of the column 3.

[0030] In this embodiment, the adjusting bracket 4 is composed of two connecting rods, and the two connecting rods are hinged. The adjusting bracket 4 is installed in the notch 32, and one end of the adjusting bracket 4 is rotatably connected to the inner wall of the notch 32. This end is recorded as the fixed end, and the other end of the adjusting bracket 4 is the movable end. The movable end is installed in the slide groove 33 through a slider, and the slider is limited to move in the slide groove 33. When the slider moves, it will drive the two connecting rods to move synchronously. Since the end of one of the connecting rods is fixed in the notch 32 and cannot move horizontally, it can only rotate. When rotating, the middle node of the adjusting bracket 4 (i.e., the hinge of the two connecting rods) will change its position, so that the distance from the node to the center line of the main shaft 1 changes. When multiple adjusting brackets 4 with the same size specifications are used, these adjusting brackets 4 can be evenly arranged on the column 3, and the movable ends of all the adjusting brackets 4 are connected to make them move synchronously. At this time, the distance from the middle node of each adjusting bracket 4 to the center line of the main shaft 1 will also be the same. The present invention is based on this principle to achieve the centering operation of the bamboo segment to be processed.

[0031] When in use, the centering mechanism in this embodiment is fixed in front of the bamboo-breaking blade, and the main shaft 1 of the centering mechanism is ensured to be coaxial with the bamboo-breaking blade.

[0032] In this embodiment, there are two adjustment brackets 4, which are evenly arranged along the circumference of the main shaft 1. The slider is fixedly connected to the rear end of the main shaft 1 through a steel wire rod 6. A wire hole 34 is provided on the end face of the column 3 away from the conical head 2. The steel wire rod 6 passes through the wire hole 34 to connect the main shaft 1 and the slider.

[0033] In this embodiment, an elastic member is provided between the conical head 2 and the end faces opposite to the column 3 , and an elastic member is also provided between the end faces opposite to the column 3 and the main shaft 1 , and the elastic member is a spring 5 .

[0034] Example 2

[0035] like Figure 7-8 As shown, the difference between this embodiment and embodiment 1 is that: in this embodiment, four notches 32 are arranged on the column 3 of the tensioning mechanism, and the four notches are evenly arranged along the circumference of the column 3, and four adjustment brackets 4 are respectively installed in the four notches 32. The four adjustment brackets are divided into two groups, and the force planes of the two groups of adjustment brackets are perpendicular to each other. The advantage of this embodiment over embodiment 1 is that the number of adjustment brackets is large, the supporting force will be more uniform, so that the inner wall of the bamboo section to be processed can be supported more stably to ensure the centering effect.

[0036] The above are only module embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have combinations and variations of the aforementioned various technical features. Without departing from the spirit and scope of the present invention, those skilled in the art may improve, modify, or replace the present invention with equivalents, or apply the structure or method of the present invention to other fields to achieve the same effect, which all fall within the scope of protection included in the present invention.

Claims

1. A centering mechanism for a bamboo breaking device, comprising a main shaft, characterized in that: The front end of the spindle is provided with a conical head, and the middle part of the spindle is provided with an annular groove; a tensioning mechanism is sleeved on the annular groove, and the tensioning mechanism is used to keep the bamboo section to be processed and the spindle coaxial; the tensioning mechanism includes a column and an adjustment bracket, and the adjustment bracket is movably connected to the column. The axial center of the column is provided with a through hole, and the column is sleeved on the middle part of the spindle through the through hole and is coaxial with the spindle; A slot is provided on the side wall of the column, and the slot is connected to the through hole space, and a slide groove is provided on the side wall of the slot; There are two notches, and the two notches are symmetrically arranged about the central axis of the cylinder; The adjusting bracket is composed of two connecting rods, which are hinged; The adjusting bracket is installed in the slot, one end of the adjusting bracket is rotatably connected to the inner wall of the slot, and the other end of the adjusting bracket is installed in the slide groove through a slider, and the slider is limited to move in the slide groove; The conical head is connected to the main shaft through a threaded structure, and the distance from the conical head to the rear end of the main shaft can be adjusted by rotation; The slider is fixedly connected to the rear end of the main shaft; The slider is fixedly connected to the rear end of the main shaft through a steel wire rod; An elastic member is arranged between the conical head and the end surface opposite to the column, and an elastic member is arranged between the end surface opposite to the main shaft.

2. The centering mechanism according to claim 1, characterized in that: The elastic member is a spring or a spring sheet.

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