Straw positioning and cutting device

Abstract

The utility model relates to the technical field of straw packaging equipment, and discloses a straw positioning and cutting device which comprises a straw positioning and cutting gear tooth, the straw positioning and cutting gear tooth comprises a tooth body, a tooth body power assembly, an arc-shaped baffle, a cutter and a cutting air cylinder, the arc-shaped baffle is arranged at the upper end of the tooth body, and a plurality of arc-shaped grooves and a plurality of cutting grooves are formed in the tooth body. A cutting groove is formed between the two arc-shaped grooves, the diameter of the cutting groove is smaller than that of the arc-shaped grooves, the tooth body power assembly is connected with the tooth body, the cutting air cylinder is connected with the cutter, and the cutter is located above any cutting groove. The arc-shaped groove and the cutter groove are formed in the tooth body, the arc-shaped groove is used for accurately placing a single straw belt and ensuring that the straw belt is kept stable in the conveying and cutting process, the cutter groove corresponds to the position of a cutter, and it is ensured that a film belt between straws can be effectively cut off; the rotation precision of the tooth body can be controlled, and the connected straw package of the target number of straws is obtained.

Description

Technical Field

[0001] This utility model relates to the field of straw packaging technology, and in particular to a straw positioning and cutting device. Background Technology

[0002] In the pharmaceutical packaging industry, it is often necessary to include a number of medication utensils, such as straws, in oral liquid medicine packaging for consumer use, matching the number of medicine bottles. Currently, two layers of BOPP (biaxially oriented polypropylene) film are used. A heat-sealing head applies pressure at a specific temperature (approximately 120-160℃) to fuse the two layers of film together in the straw-separating area. The straws are then placed into individual molten compartments, and multiple compartments containing straws are connected to form a strip, which is then packaged into a roll. At the factory, the straws need to be cut into rows (or sheets) in any quantity specified by the pharmaceutical or food manufacturers. Currently, this is mainly done manually by tearing or cutting with scissors, which easily leads to quality issues such as missing or extra straws in each section, and broken straw rows. Furthermore, manual cutting is inefficient and poses a risk of contamination to food-grade or pharmaceutical-grade straws.

[0003] Therefore, a straw positioning and cutting device is needed that can automatically and continuously cut the straw strip according to any target value while ensuring continuous operation of the equipment, so as to ensure that the number of straws in each row (each piece) is completely consistent with the target value, and can solve the risk of human contamination. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a straw positioning and cutting device, which aims to achieve a high-precision, high-efficiency and high-stability cutting effect in straw packaging, while taking into account flexibility and safety, and is suitable for the needs of modern production lines.

[0005] The present invention adopts the following technical solution:

[0006] A straw positioning and cutting device includes a straw positioning and cutting wheel tooth, the straw positioning and cutting wheel tooth comprising a tooth body, a tooth body power assembly, an arc-shaped baffle, a cutter, and a cutting cylinder. The arc-shaped baffle is disposed at the upper end of the tooth body. The tooth body is provided with multiple arc-shaped grooves and multiple cutting grooves, and a cutting groove is disposed between two arc-shaped grooves. The diameter of the cutting groove is smaller than the diameter of the arc-shaped groove. The tooth body power assembly is connected to the tooth body, and the cutting cylinder is connected to the cutter. The cutter is located above any one of the cutting grooves.

[0007] Preferably, the above-mentioned straw positioning and cutting device further includes a roller, a tensioning wheel, and a mounting plate. The straw positioning and cutting wheel teeth, the roller, and the tensioning wheel are all disposed on the mounting plate. The roller is used to assemble the straw packaging strip, and one end of the straw packaging strip is disposed on the straw positioning and cutting wheel teeth after passing through the tensioning wheel.

[0008] Preferably, in the above-mentioned straw positioning and cutting device, a cutter mounting bracket is provided on the cutting cylinder, and the cutter is mounted on the cutter mounting bracket.

[0009] Preferably, in the above-mentioned straw positioning and cutting device, the arc-shaped baffle is provided with a slot, and the cutter is disposed in the slot.

[0010] Preferably, in the above-mentioned straw positioning and cutting device, an elastic component is provided in the cutting groove.

[0011] Preferably, in the above-described straw positioning and cutting device, the height of the elastic component is less than the depth of the cutting groove.

[0012] Preferably, the above-mentioned suction tube positioning and cutting device further includes a PLC controller, which is signal-connected to the tooth body power assembly and the cutting cylinder.

[0013] Preferably, in the above-mentioned straw positioning and cutting device, the tooth power component is a servo motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes an arc-shaped groove and a cutting groove on the tooth body. The arc-shaped groove is used to precisely place a single straw belt, ensuring its stability during conveying and cutting. The cutting groove corresponds to the cutting position and is used to ensure that the film belt between each straw can be effectively cut. Furthermore, by controlling the tooth body's power component, the rotational accuracy of the tooth body can be controlled, thereby obtaining a target number of straws in a continuous straw packaging. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a straw positioning and cutting device according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a straw positioning and cutting device according to an embodiment of the present invention when an elastic component is provided;

[0019] Figure 3 This is a schematic diagram of the electronic component connections of a straw positioning and cutting device according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 101. Straw positioning and cutting wheel teeth; 1011. Tooth body; 1012. Tooth body power assembly; 1013. Arc-shaped baffle; 1014. Cutter; 1015. Cutting cylinder; 1016. Arc-shaped groove; 1017. Cutting groove; 1018. Cutter mounting bracket; 1019. Slot hole; 1020. Elastic component; 102. Roller; 103. Tensioning wheel; 104. Mounting plate; 105. PLC controller; 200. Straw packaging strap. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The present invention will now be further described with reference to the accompanying drawings.

[0026] This utility model provides a straw positioning and cutting device, such as Figure 1As shown, the straw positioning and cutting device includes a straw positioning and cutting wheel tooth 101, a roller 102, a tensioning wheel 103, and a mounting plate 104. The straw positioning and cutting wheel tooth 101, roller 102, and tensioning wheel 103 are all mounted on the mounting plate 104. The roller 102 is used to assemble the straw packaging strip 200. One end of the straw packaging strip 200 is mounted on the straw positioning and cutting wheel tooth 101 after passing through the tensioning wheel 103. The suction tube positioning and cutting wheel 101 includes a tooth body 1011, a tooth body power assembly 1012, an arc-shaped baffle 1013, a cutter 1014, and a cutting cylinder 1015. The arc-shaped baffle 1013 is disposed at the upper end of the tooth body 1011. The tooth body 1011 is provided with multiple arc-shaped grooves 1016 and multiple cutting grooves 1017. A cutting groove 1017 is disposed between two arc-shaped grooves 1016. The diameter of the cutting groove 1017 is smaller than the diameter of the arc-shaped groove 1016. The tooth body power assembly 1012 is connected to the tooth body 1011. The cutting cylinder 1015 is connected to the cutter 1014. The cutter 1014 is located above any one of the cutting grooves 1017.

[0027] In this embodiment, the rotation of the toothed body 1011 can be controlled by controlling the toothed body power assembly 1012. When the straw packaging strip 200 is placed on the toothed body 1011, the straws on the straw packaging strip 200 will be embedded into the arc-shaped groove 1016 under the action of the arc-shaped baffle 1013. According to the required number of straws for packaging, the toothed body power assembly 1012 (e.g., a servo motor) is controlled to work, causing the toothed body 1011 to rotate a certain angle. Then, by controlling the cutting cylinder 1015 to act, the cutter 1014 makes a cutting action in the vertical direction, completing the cutting of the straw packaging strip 200, thereby obtaining a straw row 600 with a set number of straws. Due to the design of multiple arc-shaped grooves 1016 and multiple cutting grooves 1017, the cutter 1014 can ensure that it only cuts the packaging film on the straw packaging strip 200 when performing the cutting operation, without accidentally touching the straws inside, thus effectively ensuring the stability and effectiveness of the cutting.

[0028] In some embodiments, a cutter mounting bracket 1018 is provided on the cutting cylinder 1015, and the cutter 1014 is mounted on the cutter mounting bracket 1018. The cutting cylinder 1015 serves as the core power source, driving the piston rod to extend and retract through the reciprocating motion of its internal piston, providing vertical linear motion power to the cutter 1014. The start, stop, and stroke of the cutting cylinder 1015 are precisely controlled by an external pneumatic control system (such as a solenoid valve) to ensure rapid response and consistent cutting force. The cutter mounting bracket 1018 is fixed to the end of the piston rod of the cutting cylinder 1015 by bolts or clips, forming a stable power transmission path and avoiding displacement errors caused by vibration or off-center load during cutter movement. When the piston rod of the cutting cylinder 1015 extends, it pushes the cutter mounting bracket 1018 and the cutter 1014 downwards, causing the cutter 1014 to cut vertically; when the piston rod retracts, the cutter 1014 returns to its original position with the mounting bracket, completing one cutting cycle.

[0029] In some embodiments, the arc-shaped baffle 1013 is provided with a slot 1019, and the cutter 1014 is disposed in the slot 1019. The slot 1019 may be disposed in the middle of the arc-shaped baffle 1013 so that the cutter 1014 can reciprocate within the slot 1019, and can be precisely aligned with the packaging film between any two straws of the straw belt by being driven by the cutting cylinder 1015.

[0030] In some embodiments, such as Figure 2 As shown, an elastic component 1020 is provided in the cutting groove 1017 to ensure that the straw membrane can be easily cut between the elastic component 1020 and the cutter 1014.

[0031] For example, the length of the elastic component 1020 is the same as that of the concave cutting groove 1017, and the height of the elastic component 1020 is less than the depth of the concave cutting groove 1017.

[0032] In some embodiments, such as Figure 3As shown, the straw positioning and cutting device also includes a PLC controller 105, which is connected to the toothed power assembly 1012 and the cutting cylinder 1015. The PLC controller 105 can control the rotation angle of the toothed power assembly 1012 (preferably a servo motor) according to the set target number of straws. For example, with n evenly spaced arc grooves 1016, each rotation of 360° / n indicates one target straw. If the target number of straws is m (m < n), the rotation angle of the toothed power assembly 1012 can be determined as m360° / n. After the toothed power assembly 1012 completes the operation of the control signal output by the PLC controller 105, it sends a positioning signal to the PLC controller 105. Upon receiving the positioning signal, the PLC controller 105 controls the cutting cylinder 1015 to complete a cutting action (usually one up-and-down motion cycle), thereby achieving automated cutting of the target number of straws.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A straw positioning and severing device, characterized by, The device includes a straw positioning and cutting wheel tooth, which comprises a tooth body, a tooth body power assembly, an arc-shaped baffle, a cutter, and a cutting cylinder. The arc-shaped baffle is disposed at the upper end of the tooth body. The tooth body is provided with multiple arc-shaped grooves and multiple cutting grooves. A cutting groove is disposed between two arc-shaped grooves. The diameter of the cutting groove is smaller than the diameter of the arc-shaped groove. The tooth body power assembly is connected to the tooth body. The cutting cylinder is connected to the cutter. The cutter is located above any one of the cutting grooves.

2. A straw positioning and severing device according to claim 1, wherein, It also includes a roller, a tensioning wheel, and a mounting plate. The straw positioning and cutting wheel teeth, the roller, and the tensioning wheel are all mounted on the mounting plate. The roller is used to assemble the straw packaging strip. One end of the straw packaging strip passes through the tensioning wheel and is mounted on the straw positioning and cutting wheel teeth.

3. The straw positioning and severing device of claim 1, wherein, The cutting cylinder is provided with a cutter mounting bracket, and the cutter is mounted on the cutter mounting bracket.

4. The straw positioning and severing device of claim 1, wherein, The arc-shaped baffle is provided with a slot, and the cutter is disposed in the slot.

5. The straw positioning and severing device of claim 1, wherein, An elastic component is provided inside the cutting groove.

6. A straw positioning and severing device according to claim 5, wherein, The height of the elastic component is less than the depth of the cutting groove.

7. The straw positioning and severing device of claim 1, wherein, It also includes a PLC controller, which is connected to the gear power assembly and the cutting cylinder via signal connection.

8. A straw positioning and severing device according to claim 1 or 7, wherein, The gear body power component is a servo motor.

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