A tail end heat fusion device for liquid filter bags

CN224276489UActive Publication Date: 2026-05-26SHANGHAI BINDIAN ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BINDIAN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of liquid filter bag production and processing technology, and discloses a tail-end heat fusion device for liquid filter bags, including a base. Support legs are symmetrically fixedly connected to the bottom of the base in all directions. A clamping mechanism is provided on the top of the base, and a fusion mechanism is provided on the left side of the top of the base. In terms of clamping and fixing, the device uses a cylinder to drive a lifting plate downwards, which in turn moves the lifting frame and rotating roller downwards. This allows for quick and stable clamping of the liquid filter bag placed on the placement seat. The spring sleeved on the guide rod surface provides good cushioning. When the rotating roller contacts the filter bag and continues to move downwards, the elastic deformation of the spring prevents the clamping force from being too large instantaneously, thus avoiding damage to the filter bag. Simultaneously, it ensures that the rotating roller can tightly adhere to the surface of the filter bag, achieving reliable clamping and effectively preventing displacement of the filter bag during the heat fusion process, ensuring the accuracy of subsequent heat fusion operations.
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Description

Technical Field

[0001] This utility model relates to the field of liquid filter bag production and processing technology, specifically to a tail-end heat fusion device for liquid filter bags. Background Technology

[0002] Liquid filter bags are widely used as highly efficient filtration elements in numerous fields such as industrial production, water treatment, and food processing to remove impurities from liquids, ensuring the smooth operation of subsequent production processes or maintaining liquid cleanliness. The quality of the liquid filter bag directly affects the filtration effect, and the sealing treatment at its end is one of the key factors ensuring the normal operation of the filter bag.

[0003] According to announcement number CN 216153186 U, a tail-end heat fusion device for liquid filter bags includes a base, a fusion machine fixedly installed on the top of the base, a feeding mechanism on one side of the base, a feeding plate on the feeding mechanism, and a rotating extraction mechanism fixedly installed on the top of the base.

[0004] This device facilitates both feeding and unloading by continuously placing filter bags on a feeding mechanism and processing them with a fusion machine. A discharge plate moves the sealed filter bag from the feeding mechanism. A rotating extraction mechanism helps extract generated gas, reducing potential harm to human health. However, the device lacks a clamping mechanism, directly fusing the liquid filter bag's tail end through the fusion machine. This method often results in unstable clamping, causing the filter bag to shift during the pressing process, thus affecting pressing accuracy and sealing performance. Utility Model Content

[0005] The purpose of this invention is to provide a tail-end heat fusion device for liquid filter bags to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tail-end heat fusion device for liquid filter bags, comprising a base, with supporting legs symmetrically fixedly connected to the bottom of the base in all directions, a clamping mechanism provided on the top of the base, and a fusion mechanism provided on the left side of the top of the base;

[0007] The clamping mechanism includes a placement seat, which is fixedly connected to the top of a base. A first fixing frame is fixedly connected to the top of the base. A cylinder is fixedly connected to the top of the first fixing frame. A lifting plate is fixedly connected to the output end of the cylinder. A guide rod is provided on the top of the lifting plate. A limit ring is fixedly connected to the surface of the guide rod near its top end. A fixing plate is fixedly connected to the surface of the guide rod near its bottom end. A spring is sleeved on the surface of the guide rod between the lifting plate and the fixing plate. A lifting frame is fixedly connected to the bottom end of the guide rod. Rollers are rotatably connected to the front and rear sides of the inner wall of the lifting frame.

[0008] Preferably, the top of the lifting plate has a hole that matches the guide rod, and the guide rod is slidably connected to the hole through its surface. The limiting ring limits the guide rod so that it will not slide out of the hole on the top of the lifting plate.

[0009] Preferably, the top end of the spring is fixedly connected to the bottom of the lifting plate, and the bottom end of the spring is fixedly connected to the top of the fixed plate.

[0010] Preferably, the fusion mechanism includes a fixed base, which is fixedly connected to the top left side of the base. A second fixed frame is fixedly connected to the top of the fixed base, and a servo motor is fixedly connected to the top of the second fixed frame. A lead screw is fixedly connected to the output end of the servo motor, and a lifting block is threaded onto the surface of the lead screw. Limiting rods are symmetrically fixedly connected to the top of the fixed base. A connecting block is fixedly connected to the right side of the lifting block, and a fixed frame is fixedly connected to the right side of the connecting block. An upper hot press plate is fixedly connected to the inner wall of the fixed frame, and a lower hot press plate corresponding to the upper hot press plate is fixedly connected to the top left side of the base.

[0011] Preferably, the bottom end of the lead screw is rotatably connected to the top of the fixed base.

[0012] Preferably, the top end of the limiting rod is fixedly connected to the top of the inner wall of the second fixing frame.

[0013] Preferably, the top of the lifting block has a hole that matches the limiting rod, and the lifting block is slidably connected to the surface of the limiting rod through the hole. The limiting rod limits the lifting block, so that the lifting block moves up and down as the lead screw rotates.

[0014] Compared with the prior art, the present invention provides a tail-end heat fusion device for liquid filter bags, which has the following beneficial effects:

[0015] 1. This tail-end heat fusion device for liquid filter bags, in terms of clamping and fixing, uses a cylinder to drive the lifting plate to descend, which in turn moves the lifting frame and rotating roller downwards. This allows for quick and stable clamping of the liquid filter bag placed on the placement seat. The spring sleeved on the surface of the guide rod provides good cushioning. When the rotating roller contacts the filter bag and continues to move downwards, the elastic deformation of the spring prevents the clamping force from being too large instantaneously and damaging the filter bag. At the same time, it ensures that the rotating roller can closely fit the surface of the filter bag, achieving reliable clamping and effectively preventing the filter bag from shifting during the heat fusion process, thus ensuring the accuracy of subsequent heat fusion operations.

[0016] 2. This tail-end heat fusion device for liquid filter bags uses a servo motor to drive a lead screw to rotate, which in turn moves the lifting block and the upper hot platen up and down. Combined with the lower hot platen, it achieves heat fusion at the tail end of the filter bag. The servo motor drive method makes the movement of the upper hot platen more precise, which can accurately control the pressure and position of heat fusion, thus improving the quality of heat fusion. At the same time, the limit rod plays a limiting and guiding role in the movement of the lifting block, ensuring the stability of the upper hot platen during movement and avoiding deviation, further improving the heat fusion effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the first fixing frame and the cylinder of this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the guide rod and spring of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the structural fusion mechanism of this utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the connecting block and the upper hot press plate of this utility model.

[0023] In the diagram: 1. Base; 2. Support leg; 3. Clamping mechanism; 31. Placement seat; 32. First fixed frame; 33. Cylinder; 34. Lifting plate; 35. Guide rod; 36. Limiting ring; 37. Fixed plate; 38. Spring; 39. Lifting frame; 311. Rotating roller; 4. Fusion mechanism; 41. Fixed seat; 42. Second fixed frame; 43. Servo motor; 44. Lead screw; 45. Lifting block; 46. Limiting rod; 47. Connecting block; 48. Fixed frame; 49. Upper hot press plate; 411. Lower hot press plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This utility model provides the following technical solution:

[0027] Example 1

[0028] Please see Figure 1-3 This utility model provides a technical solution: a tail end heat fusion device for liquid filter bags, including a base 1, with support legs 2 symmetrically fixedly connected to the bottom of the base 1 in the front, back, left and right directions, a clamping mechanism 3 provided on the top of the base 1, and a fusion mechanism 4 provided on the left side of the top of the base 1.

[0029] The clamping mechanism 3 includes a placement seat 31, which is fixedly connected to the top of the base 1. A first fixing frame 32 is fixedly connected to the top of the base 1. A cylinder 33 is fixedly connected to the top of the first fixing frame 32. A lifting plate 34 is fixedly connected to the output end of the cylinder 33. A guide rod 35 is provided on the top of the lifting plate 34. A limit ring 36 is fixedly connected to the surface of the guide rod 35 near the top end. A fixing plate 37 is fixedly connected to the surface of the guide rod 35 near the bottom end. A spring 38 is sleeved between the lifting plate 34 and the fixing plate 37 on the surface of the guide rod 35. A lifting frame 39 is fixedly connected to the bottom end of the guide rod 35. Rollers 311 are rotatably connected to the front and rear sides of the inner wall of the lifting frame 39.

[0030] The top of the lifting plate 34 has a hole that matches the guide rod 35, and the guide rod 35 is connected to the hole by sliding up and down through the surface of the guide rod 35. The limiting ring 36 limits the guide rod 35 so that the guide rod 35 will not slide out of the hole opened at the top of the lifting plate 34.

[0031] The top end of spring 38 is fixedly connected to the bottom of lifting plate 34, and the bottom end of spring 38 is fixedly connected to the top of fixed plate 37.

[0032] Example 2

[0033] Please see Figure 4-5 Furthermore, based on Example 1, a fusion mechanism 4 is obtained.

[0034] The fusion mechanism 4 includes a fixed base 41, which is fixedly connected to the top left side of the base 1. A second fixed frame 42 is fixedly connected to the top of the fixed base 41. A servo motor 43 is fixedly connected to the top of the second fixed frame 42. A lead screw 44 is fixedly connected to the output end of the servo motor 43. A lifting block 45 is threaded onto the surface of the lead screw 44. Limiting rods 46 are symmetrically fixedly connected to the top of the fixed base 41. A connecting block 47 is fixedly connected to the right side of the lifting block 45. A fixed frame 48 is fixedly connected to the right side of the connecting block 47. An upper hot press plate 49 is fixedly connected to the inner wall of the fixed frame 48. A lower hot press plate 411 corresponding to the upper hot press plate 49 is fixedly connected to the top left side of the base 1.

[0035] The bottom end of the lead screw 44 is rotatably connected to the top of the fixed base 41.

[0036] The top end of the limiting rod 46 is fixedly connected to the top of the inner wall of the second fixing frame 42.

[0037] The top of the lifting block 45 has a hole that matches the limiting rod 46, and the lifting block 45 is slidably connected to the surface of the limiting rod 46 through the hole. The limiting rod 46 limits the lifting block 45, so that the lifting block 45 moves up and down with the rotation of the lead screw 44.

[0038] In actual operation, when this device is used for heat fusion of the liquid filter bag tail end, the filter bag is first placed on the placement seat 31, so that the tail end to be heat-fused corresponds to the position of the lower hot plate 411. Then, the clamping mechanism 3 starts working, the cylinder 33 is activated, and its output end pushes the lifting plate 34 downward. Since the guide rod 35 passes through the lifting plate 34 and can slide up and down, the downward movement of the lifting plate 34 will drive the fixed plate 37, the guide rod 35 and the lifting frame 39 to move downward synchronously through the spring 38 until the rotating roller 311 in the lifting frame 39 contacts the filter bag on the placement seat 31. As the lifting plate 34 continues to move downward, the spring 38 is compressed, and the resulting elastic force makes the rotating roller 311 press tightly on the filter bag, realizing stable clamping of the filter bag and avoiding positional displacement during subsequent heat fusion. The limiting ring 36 can prevent the guide rod 35 from sliding out of the hole in the lifting plate 34, ensuring the normal operation of the clamping mechanism 3.

[0039] After clamping, the fusion mechanism 4 begins operation. The servo motor 43 starts, and its output drives the lead screw 44 to rotate. Because the lifting block 45 is threadedly connected to the lead screw 44, and under the limiting and guiding action of the limiting rod 46, the lifting block 45 cannot rotate with the lead screw 44, but can only move up and down along the limiting rod 46. When the lead screw 44 rotates, the lifting block 45, along with the connecting block 47, the fixing frame 48, and the upper hot press plate 49, moves downwards, gradually approaching the lower hot press plate 411. When the upper and lower hot press plates 49 and 411 clamp the tail end of the filter bag, they generate heat, performing heat fusion on the tail end of the filter bag. After heat fusion is completed, the servo motor 43 reverses, driving the lead screw 44 to rotate in the opposite direction, causing the lifting block 45 and the upper hot press plate 49 to move upwards and reset. At the same time, the output end of cylinder 33 retracts, causing the lifting plate 34 to move upward, the spring 38 to return to its original state, and the rotating roller 311 to lift upward, releasing the clamp on the filter bag. At this time, the filter bag that has completed heat fusion can be taken out, completing one heat fusion operation.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A tail end heat fusion device for liquid filter bags comprising a base (1) characterised in that: The base (1) has symmetrically fixed support legs (2) at the bottom, front, back, left and right. The base (1) has a clamping mechanism (3) at the top and a fusion mechanism (4) at the top left. The clamping mechanism (3) includes a placement seat (31), which is fixedly connected to the top of the base (1). A first fixing frame (32) is fixedly connected to the top of the base (1). A cylinder (33) is fixedly connected to the top of the first fixing frame (32). A lifting plate (34) is fixedly connected to the output end of the cylinder (33). A guide rod (35) is provided on the top of the lifting plate (34). A limit ring (36) is fixedly connected to the surface of the guide rod (35) near the top end. A fixing plate (37) is fixedly connected to the surface of the guide rod (35) near the bottom end. A spring (38) is sleeved between the lifting plate (34) and the fixing plate (37) on the surface of the guide rod (35). A lifting frame (39) is fixedly connected to the bottom end of the guide rod (35). Rollers (311) are rotatably connected to the front and rear sides of the inner wall of the lifting frame (39).

2. The tail-end heat fusion device for a liquid filter bag according to claim 1, characterized in that: The top of the lifting plate (34) has a hole that matches the guide rod (35), and the surface of the guide rod (35) is penetrated and slidably connected to the hole. The limiting ring (36) limits the guide rod (35).

3. The tail-end heat fusion device for a liquid filter bag according to claim 1, characterized in that: The top end of the spring (38) is fixedly connected to the bottom of the lifting plate (34), and the bottom end of the spring (38) is fixedly connected to the top of the fixing plate (37).

4. The tail-end heat fusion device for a liquid filter bag according to claim 1, characterized in that: The fusion mechanism (4) includes a fixed base (41), which is fixedly connected to the top left side of the base (1). A second fixed frame (42) is fixedly connected to the top of the fixed base (41). A servo motor (43) is fixedly connected to the top of the second fixed frame (42). A lead screw (44) is fixedly connected to the output end of the servo motor (43). A lifting block (45) is threaded onto the surface of the lead screw (44). Limiting rods (46) are symmetrically fixedly connected to the top of the fixed base (41). A connecting block (47) is fixedly connected to the right side of the lifting block (45). A fixed frame (48) is fixedly connected to the right side of the connecting block (47). An upper hot press plate (49) is fixedly connected to the inner wall of the fixed frame (48). A lower hot press plate (411) corresponding to the upper hot press plate (49) is fixedly connected to the top left side of the base (1).

5. The tail-end heat fusion device for a liquid filter bag according to claim 4, characterized in that: The bottom end of the lead screw (44) is rotatably connected to the top of the fixed seat (41).

6. The tail-end heat fusion device for a liquid filter bag according to claim 4, characterized in that: The top end of the limiting rod (46) is fixedly connected to the top of the inner wall of the second fixing frame (42).

7. The tail-end heat fusion device for a liquid filter bag according to claim 4, characterized in that: The top of the lifting block (45) is provided with a hole that matches the limiting rod (46), and the lifting block (45) is slidably connected to the surface of the limiting rod (46) through the hole.