A straw cutting and processing equipment

Abstract

The straw slitting and processing equipment of the present invention relates to the field of straw processing equipment. It comprises: a rotary conveying unit, which is used to convey the straws along a conveying path and make the straws rotate continuously during the conveying process; a cutting unit, the cutting unit is provided with a first rotating cutter disc and a second rotating cutter disc arranged beside the conveying path, the first rotating cutter disc is provided with a first tool holder, the first tool holder is provided with a first end and a second end, the first end is provided with a first blade, the second end is provided with a rotatable drill bit, the cutting direction of the first blade is perpendicular to the conveying path, the second rotating cutter disc is provided with a second tool holder, the second tool holder is installed with a second blade, and the cutting direction of the second blade is inclined with respect to the conveying path. The present invention can cut a continuous tubular member into straws with a flat front end cut, an oblique rear end cut, and a threaded groove on the front outer wall during processing; it realizes integrated processing and can form straws in one step, thus greatly improving processing efficiency.

Description

Technical Field

[0001] The invention discloses straw cutting and processing equipment, and relates to the field of straw processing equipment. Background Art

[0002] Usually, the first process of making a straw is to process the principle into a continuous tubular part, and the second process is to divide the tubular part into equal lengths. Regarding division, for example, the Chinese patent with the announcement number CN201920083963.0 discloses a straw cutter and a straw CNC processing device thereof, which specifically discloses: "A straw cutter comprises a base, and a knife holder arranged on the base and driven by a first motor to slide forward and backward relative to the base, and the front and rear end surfaces of the knife holder are respectively provided with an inlet and outlet hole for the straw to pass through, and the inlet and outlet holes are connected to the straw channel extending inside the knife holder, and the knife holder is provided with a turntable group with the straw channel as the center and a knife holder hinged to the turntable group, and a knife for cutting straws is fixedly connected to the knife holder, and the turntable group is driven to rotate by a second motor to drive the knife holder to swing forward and backward relative to the straw channel".

[0003] The solution disclosed in the patent is that "when the knife holder rotates with the turntable group, the rotation speed in the non-cutting state is set to be greater than the rotation speed in the cutting state, and the specific rotation speed is from fast to slow, and the knife holder moves toward the straw channel under the action of inertia to cut the straw." However, in this solution, the knife holder cannot complete a single-shaped cut. For straws, the lower end usually has an oblique cut and the front end is a flat cut, so a cutting unit that can form two cuts is needed. And usually there is a threaded groove at the front of the straw to facilitate bending of the straw when used, so there is an even greater need for a straw slitting processing equipment that can form two cuts and take into account the formation of a threaded groove. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a straw slitting processing device which can form two kinds of incisions and simultaneously form a thread groove.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A straw cutting and processing device, comprising:

[0007] A rotary conveying unit, which is used to convey the straw along a conveying path and to make the straw rotate continuously during the conveying process;

[0008] The cutting unit is provided with a first rotating cutter disc and a second rotating cutter disc arranged beside the conveying path, the first rotating cutter disc is provided with a first tool holder, the first tool holder is provided with a first end and a second end, the first end is provided with a first blade, the second end is provided with a rotatable drill, the cutting direction of the first blade is perpendicular to the conveying path, the second rotating cutter disc is provided with a second tool holder, the second tool holder is provided with a second blade, and the cutting direction of the second blade is inclined with respect to the conveying path;

[0009] When the straw moves along the conveying path, the first rotating cutter disc drives the first blade on the first end to tangentially cut the conveying path to cut the straw, and the first rotating cutter disc drives the drill bit on the second end to move to the conveying path to contact the outer wall of the straw. Under the action of the spiral conveying unit, the straw rotates forward to form a thread groove, and the second rotating cutter disc drives the second blade on the second tool holder to tangentially cut the conveying path to cut the straw.

[0010] Furthermore, the workflow of the cutting unit includes the following steps:

[0011] The first rotating cutter disc drives the first blade to cut the straw to form a flat incision;

[0012] Step 2: The first rotating cutter head drives the drill bit at the second end to move to the conveying path to contact the outer wall of the straw to form a thread groove;

[0013] Step 3: The second rotating blade drives the second blade on the second blade holder to cut the straw to form an oblique cut;

[0014] Step 4: The first rotating cutter head drives the drill bit at the second end to move to the conveying path to contact the outer wall of the straw to form a thread groove;

[0015] Step 5: Repeat the above steps.

[0016] Furthermore, the spiral conveying unit includes two annular belts spaced apart from each other, and the annular belts can move forward in a circular motion.

[0017] Furthermore, the spiral conveying unit comprises two mounting plates with adjustable upper and lower spacings, a group of supporting rollers are mounted on both mounting plates, and two annular belts are sleeved on the two groups of supporting rollers.

[0018] Furthermore, the spiral conveying unit includes a rotating part, which is connected to the two annular belts. A through first channel is provided in the middle of the rotating part. The straw enters the first channel from the annular belt. At least one ball spring is provided inside the first channel. The ball spring can contact the outer wall of the straw. The ball spring can make the straw relatively clamped in the first channel so that the straw can rotate synchronously with the rotating part.

[0019] Furthermore, the rotating member is a hollow inner cylinder, the inner cylinder is provided with a matching outer fixed sleeve, the inner cylinder is fixed in the outer fixed sleeve, and a bearing is provided between the inner cylinder and the outer fixed sleeve, and the above-mentioned ball spring is screwed on the peripheral wall of the inner cylinder.

[0020] Furthermore, the first rotating cutter disc includes a first motor, a first tool holder is fixed on an output shaft of the first motor, and a first end and a second end of the first tool holder extend toward both ends along a diameter direction of the output shaft of the first motor.

[0021] Furthermore, the second rotating cutter disc includes a second motor, a second tool holder is fixed on the output shaft of the second motor, one end of the second tool holder extends along the diameter direction of the output shaft of the second motor, and the second blade is fixed on the extended end of the second tool holder.

[0022] Furthermore, a cutting die cooperating with the cutting unit is provided on the conveying path, the cutting die is provided with a through second channel, the second channel is coaxially arranged with the first channel, and the cutting die is provided with two avoidance grooves corresponding to the first blade and the second blade.

[0023] Furthermore, the first blade and the second blade cooperate with the side surfaces of the two avoidance grooves to form a shearing force.

[0024] Beneficial effects: The present invention uses a spiral conveying unit and a cutting unit to cut continuous tubular parts into straws with a flat cut at the front end, an oblique cut at the rear end, and a spiral groove on the front outer wall during processing; it realizes integrated processing and can form straws in one step, thereby greatly improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0027] Figure 3 is a schematic diagram of the three-dimensional structure of the cutting unit;

[0028] Figure 4 It is a schematic diagram of the working process of the cutting unit and also shows a single straw structure after processing;

[0029] Figure 5 It is a front view structural schematic diagram of the present invention;

[0030] Figure 6 It is a schematic diagram of the second viewing angle of the three-dimensional structure of the present invention;

[0031] Figure 7 It is a schematic cross-sectional view of the structure of the self-rotating member of the present invention and other components connected thereto;

[0032] Description of reference numerals: screw conveying unit 1, endless belt 101, mounting plate 102, support roller 103, self-rotating member 104, first channel 1041, ball spring 105, external fixing sleeve 106, bearing 107;

[0033] Cutting unit 2;

[0034] A first rotary cutter disc 201, a first tool holder 2011, a first blade 2012, a drill bit 2013, a first motor 2014, a second rotary cutter disc 202, a second tool holder 2021, a second blade 2022, and a second motor 2023;

[0035] Straw 3, thread groove 31, oblique cut 32, flat cut 33;

[0036] Cutting die 4, avoidance groove 41. DETAILED DESCRIPTION

[0037] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figures 1 to 7 A straw cutting and processing device is shown, comprising:

[0041] A spiral conveying unit 1, which conveys the straw 3 along a conveying path and makes the straw 3 rotate continuously during the conveying process;

[0042] The cutting unit 2 is provided with a first rotating cutter disc 201 and a second rotating cutter disc 202 arranged beside the conveying path. The first rotating cutter disc 201 is provided with a first tool holder 2011. The first tool holder 2011 is provided with a first end and a second end. The first end is provided with a first blade 2012. The second end is provided with a rotatable drill 2013. The cutting direction of the first blade 2012 is perpendicular to the conveying path. The second rotating cutter disc 202 is provided with a second tool holder 2021. The second tool holder 2021 is provided with a second blade 2022. The second blade 2022 is provided with a second blade 2013. 022 has a cutting direction inclined with the conveying path; in the process of the straw 3 moving along the conveying path, the first rotating cutter disc 201 drives the first blade 2012 on the first end to tangentially cut the conveying path to cut the straw 3, the first rotating cutter disc 201 drives the drill bit 2013 at the second end to move to the conveying path to contact the outer wall of the straw 3, and under the action of the spiral conveying unit 1, the straw 3 rotates forward to form a thread groove 31, and the second rotating cutter disc 202 drives the second blade 2022 on the second tool holder 2021 to tangentially cut the conveying path to cut the straw 3.

[0043] Reference Figure 3 , Figure 4 , the workflow of cutting unit 2 is:

[0044] Step 1: The first rotating blade disc 201 drives the first blade 2012 to cut the straw 3 to form a flat incision 33;

[0045] Step 2: The first rotating cutter disc 201 drives the drill bit 2013 at the second end to move to the conveying path to contact the outer wall of the straw 3 to form a thread groove 31;

[0046] Step 3: The second rotating blade disc 202 drives the second blade 2022 on the second blade holder 2021 to cut the straw 3 to form an oblique cut 32;

[0047] Step 4: The first rotating cutter disc 201 drives the drill bit 2013 at the second end to move to the conveying path to contact the outer wall of the straw 3 to form a thread groove 31;

[0048] This process is repeated continuously, and the continuous tubular member can be cut into straws 3 with a flat cut 33 at the front end, an oblique cut 32 at the rear end, and a thread groove 31 on the front outer wall.

[0049] Repeat steps 1 to 4.

[0050] In this embodiment, the spiral conveying unit 1 includes two annular belts 101 spaced apart from each other. The annular belts 101 circulate forward, and the straw 3 is sandwiched between the two annular belts 101 to move forward. The advantage of the annular belt 101 is that the annular belt 101 itself has a certain elasticity, and it can be made of rubber. Because of its elasticity, it will not jam the straw 3, nor will it cause damage to the straw 3. And it is guaranteed that there is a certain friction force to smoothly drive the straw 3 forward.

[0051] Specifically, the spiral conveying unit 1 further includes two mounting plates 102 with adjustable upper and lower spacings, a set of support rollers 103 are mounted on each of the two mounting plates 102, and the two endless belts 101 are sleeved on the corresponding support rollers 103. The spacing between the two endless belts 101 can be changed by the two mounting plates 102 with adjustable spacings, so as to adapt to the operation of straws 3 with different diameters, and the clamping force can be adjusted so that the straw 3 can be fixed without causing damage to the straw 3 due to excessive deformation.

[0052] In this embodiment, the spiral conveying unit 1 includes a self-rotating member 104, which is connected to the two annular belts 101. A through first channel 1041 is provided in the middle of the self-rotating member 104. The straw 3 enters the first channel 1041 from the annular belt 101. The first channel 1041 has at least one ball spring 105 inside. The ball spring 105 contacts the outer wall of the straw 3. The straw 3 is relatively clamped in the first channel 1041 by the ball spring 105 so that the straw 3 can rotate synchronously with the self-rotating member 104, so that the straw 3 completes the rotation while being driven forward by the annular belt 101. The advantage of using the ball spring 105 is that it can provide a certain clamping force so that the straw 3 can rotate normally, and at the same time, it does not affect the advancement of the straw 3. In this embodiment, it is preferred to arrange multiple rows of ball springs 105 along the axial direction of the self-rotating member 104, and each row includes multiple ball springs 105 arranged along the circumference of the self-rotating member 104.

[0053] In this embodiment, the rotating member 104 is a hollow inner cylinder, which is provided with a matching outer fixed sleeve 106, the inner cylinder is fixed in the outer fixed sleeve 106, and a bearing 107 is provided between the inner cylinder and the outer fixed sleeve 106, and the ball spring 105 is screwed on the peripheral wall of the inner cylinder. The inner cylinder protrudes at both ends of the outer fixed sleeve 106, and a pulley is provided on one of the protruding ends, and the inner cylinder can be driven to rotate by connecting the pulley with a belt.

[0054] In this embodiment, the first rotating blade disc 201 includes a first motor 2014, a first blade holder 2011 is fixed on the output shaft of the first motor 2014, and a first end and a second end of the first blade holder 2011 extend toward both ends along the diameter direction of the output shaft of the first motor 2014. In this way, the first blade 2012 can quickly cut the straw 3 under the centrifugal force generated during the rotation, so that the incision is smooth and flat.

[0055] Correspondingly, the second rotating cutter disc 202 includes a second motor 2023 , a second tool holder 2021 is fixed on the output shaft of the second motor 2023 , one end of the second tool holder 2021 extends along the diameter direction of the output shaft of the second motor 2023 , and a second blade 2022 is fixed on the extended end of the second tool holder 2021 .

[0056] In this embodiment, a cutting die 4 cooperating with the cutting unit 2 is provided on the conveying path, and the cutting die 4 is provided with a through second channel, and the second channel is coaxially arranged with the first channel 1041, and the straw 3 coming out of the first channel 1041 can enter the second channel, and the cutting die 4 is provided with three avoidance grooves 41 corresponding to the first blade 2012, the second blade 2022, and the drill bit 2013. The first blade 2012 and the second blade 2022 can cooperate with the side surfaces of the two avoidance grooves 41 to form a shear force, so that the cross section of the straw 3 is more complete and smooth.

[0057] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A straw cutting and processing equipment, It is characterized in that include: A rotary conveying unit, which is used to convey the straw (3) along a conveying path and to cause the straw (3) to continuously rotate during the conveying process; A cutting unit (2), the cutting unit (2) being provided with a first rotating cutter disc (201) and a second rotating cutter disc (202) arranged beside a conveying path, the first rotating cutter disc (201) being provided with a first tool holder (2011), the first tool holder (2011) being provided with a first end and a second end, the first end being provided with a first blade (212), the second end being provided with a rotatable drill bit (213), the cutting direction of the first blade (2012) being perpendicular to the conveying path, the second rotating cutter disc (202) being provided with a second tool holder (221), the second tool holder (221) being provided with a second blade (222), the cutting direction of the second blade (222) being inclined with respect to the conveying path; When the straw (3) moves along the conveying path, the first rotating cutter disc (201) drives the first blade (2012) on the first end to cut the straw (3) tangentially along the conveying path; the first rotating cutter disc (201) drives the drill bit (2013) on the second end to move to the conveying path to contact the outer wall of the straw (3); under the action of the spiral conveying unit (1), the straw (3) rotates forward to form a spiral groove (31); and the second rotating cutter disc (202) drives the second blade (222) on the second tool holder (2021) to cut the straw (3) tangentially along the conveying path; The conveying path is provided with a knife die (4) cooperating with the cutting unit (2); the knife die (4) is provided with a through second channel, the second channel is coaxially arranged with the first channel (1041); the knife die (4) is provided with two avoidance grooves (41) corresponding to the first blade (212) and the second blade (222); The first blade (2012) and the second blade (2022) cooperate with the side surfaces of the two avoidance grooves (41) to form a shear force.

2. A straw cutting and processing equipment according to claim 1, Features: The spiral conveying unit (1) comprises two annular belts (101) arranged at an interval up and down, and the annular belts (101) can move forward in a circular motion.

3. A straw cutting and processing equipment according to claim 2, Features: The screw conveying unit (1) comprises two mounting plates (102) with adjustable upper and lower spacings, a group of support rollers (103) being mounted on each of the two mounting plates (102), and two endless belts (101) being sleeved on the two groups of support rollers (103).

4. A straw cutting and processing equipment according to claim 3, Features: The spiral conveying unit (1) comprises a self-rotating member (104), wherein the self-rotating member (104) is connected to two annular belts (101), a first through channel (1041) is provided in the middle of the self-rotating member (104), a straw (3) enters the first channel (1041) from the annular belt (101), at least one ball spring (105) is provided inside the first channel (1041), the ball spring (105) can abut against the outer wall of the straw (3), and the ball spring (105) can make the straw (3) relatively clamped in the first channel (1041) so that the straw (3) can rotate synchronously with the self-rotating member (104).

5. A straw cutting and processing equipment according to claim 4, Features: The rotating member (104) is a hollow inner cylinder, the inner cylinder is provided with a matching outer fixed sleeve (106), the inner cylinder is fixed in the outer fixed sleeve (106), and a bearing (107) is provided between the inner cylinder and the outer fixed sleeve (106), and the ball spring (105) is screwed onto the peripheral wall of the inner cylinder.

6. The straw cutting and processing equipment according to claim 1, Features: The first rotating cutter disc (201) comprises a first motor (2014); a first cutter holder (2011) is fixed on an output shaft of the first motor (2014); a first end and a second end of the first cutter holder (2011) extend toward both ends along a diameter direction of the output shaft of the first motor (2014).

7. The straw cutting and processing equipment according to claim 1, Features: The second rotating cutter disc (202) comprises a second motor (2023); a second cutter holder (2021) is fixed on an output shaft of the second motor (2023); one end of the second cutter holder (2021) extends along a diameter direction of the output shaft of the second motor (2023); and a second blade (2022) is fixed on an extended end of the second cutter holder (2021).

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