Medical filter assembling machine

Abstract

The utility model discloses a medical filter assembling machine which comprises a vertically-arranged main machine frame, a carrier positioning mechanism arranged on the left side of the main machine frame, a membrane cutting and welding mechanism arranged on the left side of the main machine frame and located over the carrier positioning mechanism, and a membrane unwinding mechanism arranged on the right side of the main machine frame. The membrane guide mechanism is arranged on the main frame and is used for guiding the strip-shaped filter membrane unwound by the membrane unwinding mechanism to pass between the carrier positioning mechanism and the membrane cutting and welding mechanism; and the membrane winding mechanism is arranged on the right side of the main frame and is used for winding the strip-shaped filter membrane passing between the carrier positioning mechanism and the membrane cutting and welding mechanism. According to the medical filter assembling machine disclosed by the utility model, the cutting and the welding of the filter membrane can be completed in one step, the disc-shaped filter membrane cut from the strip-shaped filter membrane can be directly welded in a plastic carrier, the mounting precision and the welding precision of the disc-shaped filter membrane can be improved, and the yield and the productivity of products are further improved.

Description

Technical Field

[0001] This utility model relates to a medical filter assembly machine. Background Technology

[0002] Medical filters consist of a plastic carrier and a filter membrane. When liquid passes through a medical filter, unwanted impurities are filtered out. The plastic carrier is typically made of medical-grade plastic and manufactured using an injection molding machine, while the filter membrane is usually made of a plastic polymer material containing dense micropores.

[0003] The filter membrane needs to be assembled and welded together with a plastic carrier, and the raw material for the filter membrane is generally a strip material. The existing assembly method for filter membranes and plastic carriers is to first cut the strip filter membrane into circular filter membranes, then transfer the circular filter membranes into the plastic carrier, and finally weld the circular filter membranes in the plastic carrier to the plastic carrier to form a whole.

[0004] The existing assembly methods for filter membranes and plastic carriers require improvement in terms of installation and welding precision for disc-shaped filter membranes. Furthermore, the assembly speed is slow, the efficiency is low, and the production line output is low. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a medical filter assembly machine. The medical filter includes a plastic carrier and a circular filter membrane. The medical filter assembly machine includes: a vertical main frame; a carrier positioning mechanism located on the left side of the main frame for laying and positioning the plastic carrier; a membrane cutting and welding mechanism located on the left side of the main frame, directly above the carrier positioning mechanism, for cutting and welding the filter membrane; a membrane unwinding mechanism located on the right side of the main frame for unwinding the strip filter membrane; a membrane guiding mechanism located on the main frame for guiding the strip filter membrane unwound by the membrane unwinding mechanism to pass between the carrier positioning mechanism and the membrane cutting and welding mechanism; and a membrane winding mechanism located on the right side of the main frame for winding the strip filter membrane after it has passed between the carrier positioning mechanism and the membrane cutting and welding mechanism.

[0006] Preferably, the carrier positioning mechanism includes: a positioning groove for laying the plastic carrier flat, and a support frame located below the positioning groove and supporting the positioning groove.

[0007] Preferably, the diaphragm cutting and welding mechanism includes: a vertical ultrasonic welding head located directly above the positioning groove, and an ultrasonic welding machine located above the ultrasonic welding head and capable of driving the ultrasonic welding head to rise and fall vertically.

[0008] The bottom end of the ultrasonic welding head is provided with two rings: the outer ring is a cutting ring and the inner ring is a welding ring; the cutting ring has an annular cutting edge that can cut the strip-shaped filter membrane into a circular filter membrane; the welding ring has an annular heating surface that can weld the cut circular filter membrane into a plastic carrier.

[0009] Preferably, the annular cutting edge is coaxial with the ultrasonic welding head.

[0010] Preferably, the annular heating surface is coaxial with the ultrasonic welding head.

[0011] Preferably, the annular cutting edge protrudes from the annular heating surface, and the protrusion height is 0.3mm.

[0012] Preferably, the diaphragm unwinding mechanism is fixedly connected to the top right side of the main frame.

[0013] Preferably, the film winding mechanism is fixedly connected to the middle right side of the main frame.

[0014] Preferably, the positioning groove is at the same height as the film winding mechanism.

[0015] Preferably, the membrane guiding mechanism includes: an inverted L-shaped guide frame fixed to the top of the main frame and spanning the membrane cutting and welding mechanism, and a plurality of guide wheels disposed on the inverted L-shaped guide frame for conveying the strip filter membrane.

[0016] The advantages and beneficial effects of this utility model are as follows: It provides a medical filter assembly machine that can complete the cutting and welding of filter membranes in one step. It can directly weld the circular filter membranes cut from the strip filter membranes into the plastic carrier, which can improve the installation accuracy and welding accuracy of the circular filter membranes, thereby improving the product yield and production capacity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the medical filter assembly machine of this utility model;

[0018] Figure 2 This is a schematic diagram of an ultrasonic welding head;

[0019] Figure 3 This is a schematic diagram of the bottom of an ultrasonic welding head. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0021] The specific technical solution of this utility model is as follows:

[0022] like Figures 1 to 3 As shown, this utility model provides a medical filter assembly machine. The medical filter includes a plastic carrier and a disc-shaped filter membrane. The medical filter assembly machine includes: a vertical main frame 1; a carrier positioning mechanism 2 located on the left side of the main frame 1 for laying and positioning the plastic carrier; a membrane cutting and welding mechanism 3 located on the left side of the main frame 1, directly above the carrier positioning mechanism 2, for cutting and welding the filter membrane; a membrane unwinding mechanism 4 located on the right side of the main frame 1 for unwinding a strip-shaped filter membrane 7; a membrane guiding mechanism 5 located on the main frame 1 for guiding the strip-shaped filter membrane 7 unwound by the membrane unwinding mechanism 4 to pass between the carrier positioning mechanism 2 and the membrane cutting and welding mechanism 3; and a membrane winding mechanism 6 located on the right side of the main frame 1 for winding the strip-shaped filter membrane 7 after passing between the carrier positioning mechanism 2 and the membrane cutting and welding mechanism 3.

[0023] The carrier positioning mechanism 2 includes: a positioning groove 21 for laying the plastic carrier flat, and a support frame 22 located below the positioning groove 21 and supporting the positioning groove 21.

[0024] The diaphragm cutting and welding mechanism 3 includes: a vertical ultrasonic welding head 31 located directly above the positioning groove 21, and an ultrasonic welding machine 32 located above the ultrasonic welding head 31 and capable of driving the ultrasonic welding head 31 to rise and fall vertically.

[0025] The bottom end of the ultrasonic welding head 31 is provided with two rings: an outer ring is a cutting ring, and an inner ring is a welding ring; the cutting ring has an annular cutting edge 311 that can cut the strip-shaped filter membrane 7 into circular filter membranes; the annular cutting edge 311 is coaxial with the ultrasonic welding head 31; the welding ring has an annular heating surface 312 that can weld the cut circular filter membranes into the plastic carrier; the annular heating surface 312 is coaxial with the ultrasonic welding head 31; the annular cutting edge 311 protrudes from the annular heating surface 312, and the protrusion height is 0.3mm;

[0026] The unwinding mechanism 4 is fixedly connected to the top right side of the main frame 1; the winding mechanism 6 is fixedly connected to the middle right side of the main frame 1; the positioning groove 21 is at the same height as the winding mechanism 6;

[0027] The membrane guiding mechanism 5 includes: an inverted L-shaped guide frame 51 fixed to the top of the main frame 1 and spanning the membrane cutting and welding mechanism 3, and a plurality of guide wheels 52 disposed on the inverted L-shaped guide frame 51 for conveying the strip filter membrane 7.

[0028] The working principle of this medical filter assembly machine includes:

[0029] The membrane unwinding mechanism 4 unwinds the strip filter membrane 7. The strip filter membrane 7 passes between the carrier positioning mechanism 2 (positioning groove 21) and the membrane cutting and welding mechanism 3 (ultrasonic welding head 31) under the guidance of the membrane guiding mechanism 5 (multiple guide wheels 52). Finally, the membrane winding mechanism 6 winds up the strip filter membrane 7 after it has passed between the carrier positioning mechanism 2 (positioning groove 21) and the membrane cutting and welding mechanism 3 (ultrasonic welding head 31).

[0030] The ultrasonic welding machine 32 drives the ultrasonic welding head 31 to reciprocate vertically. Each time the ultrasonic welding head 31 moves down, the cutting ring (annular cutting blade 311) on the outer ring of the bottom end of the ultrasonic welding head 31 cuts the strip-shaped filter membrane 7 into a circular filter membrane. The welding ring (annular heating surface 312) on the inner ring of the bottom end of the ultrasonic welding head 31 welds the cut circular filter membrane into the plastic carrier of the positioning groove 21, so that the circular filter membrane and the plastic carrier form a whole. After each cutting and welding is completed, the ultrasonic welding machine 32 drives the ultrasonic welding head 31 to move up and reset.

[0031] Furthermore, the transmission of the strip filter membrane 7 is paused each time the ultrasonic welding head 31 moves down; the transmission of the strip filter membrane 7 is resumed each time the ultrasonic welding head 31 moves up and resets.

[0032] As can be seen from the above, the medical filter assembly machine of this utility model can complete the cutting and welding of filter membranes in one step. It can directly weld the circular filter membranes cut from the strip filter membrane 7 into the plastic carrier, which can improve the installation accuracy and welding accuracy of the circular filter membranes, thereby improving the product yield and production capacity.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A medical filter assembly machine, said medical filter comprising a plastic carrier and a disc-shaped filter membrane; characterized in that, The medical filter assembly machine comprises a vertical main frame, a carrier positioning mechanism arranged on the left side of the main frame and used for laying and positioning a plastic carrier, a membrane cutting and welding mechanism arranged on the left side of the main frame and located directly above the carrier positioning mechanism and used for cutting and welding a filter membrane, a membrane unwinding mechanism arranged on the right side of the main frame and used for unwinding a strip-shaped filter membrane, a membrane guiding mechanism arranged on the main frame and used for guiding the strip-shaped filter membrane unwound by the membrane unwinding mechanism to pass between the carrier positioning mechanism and the membrane cutting and welding mechanism, and a membrane winding mechanism arranged on the right side of the main frame and used for winding the strip-shaped filter membrane after passing between the carrier positioning mechanism and the membrane cutting and welding mechanism.

2. The medical filter assembly machine of claim 1, wherein, The carrier positioning mechanism comprises a positioning groove used for laying the plastic carrier, and a support frame arranged below the positioning groove and supporting the positioning groove.

3. The medical filter assembly machine of claim 1, wherein, The membrane cutting and welding mechanism comprises a vertical ultrasonic welding head located directly above the positioning groove, and an ultrasonic welding machine located above the ultrasonic welding head and capable of driving the ultrasonic welding head to vertically ascend and descend. The bottom end of the ultrasonic welding head is provided with two circles, i.e. an outer cutting circle and an inner welding circle; the cutting circle is provided with an annular cutting edge capable of cutting the strip-shaped filter membrane into a disc-shaped filter membrane; and the welding circle is provided with an annular heating surface capable of welding the cut disc-shaped filter membrane in the plastic carrier.

4. The medical filter assembly machine of claim 3, wherein, The annular cutting edge is coaxial with the ultrasonic welding head.

5. The medical filter assembly machine of claim 3, wherein, The annular heating surface is coaxial with the ultrasonic welding head.

6. The medical filter assembly machine of claim 3, wherein, The annular cutting edge protrudes from the annular heating surface by a height of 0.3 mm.

7. The medical filter assembly machine of claim 1, wherein, The membrane unwinding mechanism is fixedly connected with the top of the right side of the main frame.

8. The medical filter assembly machine of claim 1, wherein, The membrane winding mechanism is fixedly connected with the middle of the right side of the main frame.

9. The medical filter assembly machine of claim 2, wherein, The positioning groove is in the same height as the membrane winding mechanism.

10. The medical filter assembly machine of claim 1, wherein, The membrane guiding mechanism comprises an inverted L-shaped guiding frame fixedly connected with the top end of the main frame and crossing the membrane cutting and welding mechanism, and a plurality of guiding wheels arranged on the inverted L-shaped guiding frame and used for conveying the strip-shaped filter membrane.

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