Rubber calender for producing float valve of infusion apparatus

Abstract

The utility model discloses a rubber calender for producing a float valve of an infusion apparatus, which relates to the technical field of calenders and comprises a machine body, two groups of rollers are arranged on the inner side of the machine body and used for calendering rubber raw materials required by the production of the float valve of the infusion apparatus, and each roller comprises a roller body assembly and a roller body, comprising a central shaft rod rotationally installed on the inner side of a machine body, an inner roller body is welded to the outer wall of the central shaft rod, and an outer roller shell is detachably installed on the outer wall of the inner roller body; and the assembling part is arranged on one side of the inner roller body and one side of the outer roller shell. Bolt parts for fixing the positioning strips and the outer roller shell are detached by using a tool, and the L-shaped clamping rods are rotated, so that the L-shaped clamping rods are separated from the clamping blocks, the outer roller shell and the inner roller body are in a freely detached state, and a smooth roller surface can be replaced on the premise of not wasting excessive original materials in a manner of independently detaching the outer shell surface of the roller; therefore, the processing effect of the rubber for producing the infusion apparatus float valve is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of calenders, in particular to a rubber calender for producing float valves of infusion sets. Background Art

[0002] The float valve of an infusion set is a key component in medical infusion equipment, and its quality is directly related to the safety and effectiveness of patient treatment. The float valve mainly relies on the float principle and the force generated by the pressure difference to achieve fluid control. It has the characteristics of only allowing liquid to pass through and preventing air from entering. Therefore, the rubber material selection, molding accuracy, and surface finish in its production process are extremely high.

[0003] In the prior art, a rubber calender is disclosed in the patent with publication number CN214447913U, which belongs to the field of rubber production technology, and includes a first roller and a second roller of a support frame, a top adjustment mechanism of the support frame, a power unit arranged on the support frame, and a control unit. A measuring mechanism is also arranged on the side of the support frame, and the measuring end of the measuring mechanism is also electrically connected to the control unit. The rubber calender provided by the utility model can measure the thickness of the rubber sheet through the measuring mechanism during the process of rolling the rubber sheet by the first roller and the second roller, and then transmit the measurement signal to the control unit. The control unit compares the measured value with the preset value, and then controls the power unit to drive the adjustment mechanism to adjust the gap between the first roller and the second roller, so that the thickness of the rubber sheet reaches the preset value, which can ensure the accuracy of the thickness of the rubber sheet, reduce the labor intensity of the workers and improve the production efficiency.

[0004] Although the above patent can adjust the gap between the rollers, the traditional rubber calender is prone to scratches, uneven defects during the processing, and these roller surface defects will cause the rubber material processed by the calender to fail to meet the expected standards, thereby affecting the use effect of the float valve. If the rollers on the calender are replaced as a whole, it will cause a large loss of the workpiece raw material, and additionally increase the production cost. For this reason, the utility model provides a rubber calender for the production of infusion pump float valves. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a rubber calender for the production of infusion pump float valves, which solves the problem that traditional rubber calenders are prone to scratches and uneven defects during the processing process. These roller surface defects will cause the rubber material processed by the calender to fail to meet the expected standards, thereby affecting the use effect of the float valve.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a rubber calender for producing an infusion float valve, comprising a machine body, wherein two groups of rollers are arranged inside the machine body for calendering the rubber raw materials required for producing the infusion float valve, and the rollers include:

[0007] The roller assembly is arranged inside the machine body, and comprises a central shaft rod rotatably mounted inside the machine body, an inner roller body is welded to the outer wall of the central shaft rod, and an outer roller shell is detachably mounted on the outer wall of the inner roller body;

[0008] The assembly component is arranged on one side of the inner roller body and the outer roller shell, and is used to assemble and fix the inner roller body and the outer roller shell.

[0009] Preferably, the assembly components include several groups of L-shaped clamping rods welded to the outer wall of the central shaft, the outer wall of one side of the outer roller shell is welded with a number of clamping blocks equal to the L-shaped clamping rods, and the clamping blocks are provided with sockets for the L-shaped clamping rods to fit into, the outer wall of the inner roller shell is welded with a positioning strip, one end of the positioning strip is penetrated by a bolt, and the outer roller shell is provided with a threaded groove on the same side as the clamping block for the bolt to fit into.

[0010] Preferably, the central shaft is fixedly connected to a sleeve on the side away from the assembling component, the inner wall of the sleeve is slidably connected to a sliding column, the top of the sliding column is fixedly connected to a first guide block, the upper part of the sleeve is fixedly connected to a screw, a second guide block is slidably mounted on the screw, and the screw is located above the second guide block and is threadedly screwed with a positioning nut, a connecting rod is movably connected between the first guide block and the second guide block, and a guide groove is provided on the upper surface of the sleeve for horizontal directional sliding of the first guide block.

[0011] Preferably, a cross block is fixed to the end of the sliding column and the side of the central shaft away from the sliding column.

[0012] Preferably, a power shaft connectable to a cross clamping block is mounted on the machine body, and a cross clamping groove for the cross clamping block to fit into is provided on the power shaft.

[0013] Preferably, the two groups of rollers are arranged parallel to each other.

[0014] Beneficial Effects

[0015] The utility model provides a rubber calender for producing a float valve of an infusion set. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The rubber calender for producing the float valve of the infusion set is used to remove the bolts fixing the positioning strip and the outer roller shell by using a tool, and the L-shaped clamping rod is rotated, so that the L-shaped clamping rod is separated from the clamping block, and the outer roller shell and the inner roller body are in a freely detachable state. By separately splitting the outer shell surface of the roller, the smooth roller surface can be replaced without wasting too much original material, thereby ensuring the processing effect of the rubber for producing the float valve of the infusion set.

[0017] (2) The rubber calender used in the production of the infusion pump float valve uses a tool to screw up the nut on the screw rod, and then adjusts the positions of the second guide block and the first guide block accordingly. During this process, the sliding column penetrates into the interior of the sleeve, and then separates the cross block on one side of the sleeve from the corresponding power shaft, thereby facilitating the peeling of the outer roller shell from the outside of the inner roller body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of a roller assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly of the roller assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the assembly of the sleeve and the sliding column of the utility model.

[0022] In the figure: 1-machine body, 2-roller, 21-roller assembly, 211-central shaft, 212-inner roller body, 213-outer roller shell, 22-assembly component, 221-L-shaped clamping rod, 222-block, 223-positioning strip, 3-sleeve, 4-sliding column, 5-first guide block, 6-screw, 7-second guide block, 8-connecting rod, 9-cross clamping block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a rubber calender for producing an infusion float valve, comprising a machine body 1, two groups of rollers 2 are arranged inside the machine body 1 for calendering the rubber raw materials required for the production of the infusion float valve, and the rollers 2 include:

[0025] The roller assembly 21 is arranged inside the machine body 1, and includes a central shaft 211 rotatably mounted inside the machine body 1, an inner roller body 212 is welded to the outer wall of the central shaft 211, and an outer roller shell 213 is detachably mounted to the outer wall of the inner roller body 212;

[0026] The assembling component 22 is disposed on one side of the inner roller body 212 and the outer roller shell 213 , and is used to assemble and fix the inner roller body 212 and the outer roller shell 213 .

[0027] In this embodiment, the assembly component 22 includes a plurality of groups of L-shaped clamping rods 221 welded to the outer wall of the central shaft 211, and a clamping block 222 of the same number as the L-shaped clamping rod 221 is welded to the outer wall of one side of the outer roller shell 213, and the clamping block 222 is provided with a socket for the L-shaped clamping rod 221 to fit in. A positioning strip 223 is welded to the outer wall of the inner roller body 212, and a bolt passes through one end of the positioning strip 223, and the outer roller shell 213 is provided with a threaded groove on the same side as the clamping block 222 for the bolt to fit in and screw on. Use a tool to remove the bolts fixing the positioning strip 223 and the outer roller shell 213, and rotate the L-shaped clamping rod 221, so that the L-shaped clamping rod 221 is separated from the clamping block 222, and the outer roller shell 213 and the inner roller body 212 are in a freely detachable state.

[0028] In this embodiment, the central shaft 211 is fixedly connected to a sleeve 3 on the side away from the assembling component 22, a sliding column 4 is slidably connected to the inner wall of the sleeve 3, a first guide block 5 is fixedly connected to the top of the sliding column 4, a screw 6 is fixedly connected to the upper part of the sleeve 3, a second guide block 7 is slidably mounted on the screw 6, and a positioning nut is threadedly screwed on the screw 6 above the second guide block 7, a connecting rod 8 is movably connected between the first guide block 5 and the second guide block 7, and a guide groove for horizontal directional sliding of the first guide block 5 is provided on the upper surface of the sleeve 3, the nut on the screw 6 is screwed up by using a tool, and then the positions of the second guide block 7 and the first guide block 5 are adjusted accordingly, during this process the sliding column 4 penetrates into the interior of the sleeve 3, and then the cross block 9 on one side thereof is separated from the corresponding power shaft.

[0029] In this embodiment, a cross block 9 is fixed to the end of the slide column 4 and the side of the central shaft 211 away from the slide column 4. A power shaft that can be connected to the cross block 9 is installed on the body 1, and a cross slot is provided on the power shaft for the cross block 9 to fit into.

[0030] In this embodiment, the two groups of rollers 2 are arranged parallel to each other. As the rollers 2 rotate, the rubber mixture is subjected to strong shearing and squeezing forces, thereby being rolled and formed.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] When the calender is working, the staff starts the calender equipment, and the two adjacent rollers 2 rotate relative to each other at a certain speed ratio. Due to the friction between the rollers 2, the rubber mixture will be brought into the gap between the rollers. As the rollers 2 rotate, the rubber mixture will be subjected to strong shearing and squeezing forces, and thus be rolled and formed. During this process, the rubber mixture can be calendered into various required thicknesses and widths to form a rubber belt; when relevant personnel detect that the rubber calender produces scratches or unevenness during processing, they use tools to remove the bolts fixing the positioning strip 223 and the outer roller shell 213, and rotate the L-shaped clamping rod 221, so that the L-shaped clamping rod 221 is separated from the clamping block 222, and the outer roller shell 213 and the inner roller body 212 are in a freely detachable state. By separately splitting the outer shell surface of the roller 2, the smooth roller surface can be replaced without wasting too much original material, thereby ensuring the processing effect of the rubber used in the production of the infusion pump float valve. In addition, by using tools to screw up the nut on the screw 6, the positions of the second guide block 7 and the first guide block 5 are adjusted accordingly. In this process, the sliding column 4 penetrates into the sleeve 3, and then the cross clamping block 9 on one side thereof is separated from the corresponding power shaft, thereby facilitating the peeling of the outer roller shell 213 from the outside of the inner roller body 212.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber calender for producing a float valve of an infusion set, comprising a machine body (1), characterized in that: Two groups of rollers (2) are arranged inside the machine body (1) for calendering the rubber raw materials required for the production of the infusion pump float valve, and the rollers (2) include: A roller assembly (21) is arranged inside the machine body (1), comprising a central shaft (211) rotatably mounted inside the machine body (1), an inner roller body (212) being welded to the outer wall of the central shaft (211), and an outer roller shell (213) being detachably mounted on the outer wall of the inner roller body (212); The assembly component (22) is arranged on one side of the inner roller body (212) and the outer roller shell (213), and is used to assemble and fix the inner roller body (212) and the outer roller shell (213).

2. A rubber calender for producing a float valve for an infusion set according to claim 1, characterized in that: The assembly component (22) comprises a plurality of groups of L-shaped clamping rods (221) welded to the outer wall of the central shaft (211); a clamping block (222) having the same number as the L-shaped clamping rods (221) is welded to the outer wall of one side of the outer roller shell (213); and the clamping block (222) is provided with a plug hole for the L-shaped clamping rods (221) to be inserted into; a positioning strip (223) is welded to the outer wall of the inner roller body (212); a bolt passes through one end of the positioning strip (223); and the outer roller shell (213) is provided with a threaded groove for the bolt to be screwed on the same side as the clamping block (222).

3. The rubber calender for producing the float valve of an infusion set according to claim 1, characterized in that: The central shaft (211) is fixedly connected to a sleeve (3) on a side away from the assembly component (22); a sliding column (4) is slidably connected to the inner wall of the sleeve (3); a first guide block (5) is fixedly connected to the top of the sliding column (4); a screw rod (6) is fixedly connected to the upper part of the sleeve (3); a second guide block (7) is slidably mounted on the screw rod (6); a positioning nut is threadedly screwed on the screw rod (6) above the second guide block (7); a connecting rod (8) is movably connected between the first guide block (5) and the second guide block (7); and a guide groove for horizontal directional sliding of the first guide block (5) is provided on the upper surface of the sleeve (3).

4. A rubber calender for producing a float valve for an infusion set according to claim 3, characterized in that: A cross clamping block (9) is fixed to the end of the sliding column (4) and to the side of the central shaft (211) away from the sliding column (4).

5. The rubber calender for producing the float valve of the infusion set according to claim 4, characterized in that: The machine body (1) is provided with a power shaft which can be connected to a cross clamping block (9), and the power shaft is provided with a cross clamping groove for the cross clamping block (9) to fit in.

6. The rubber calender for producing the float valve of an infusion set according to claim 1, characterized in that: The two groups of rollers (2) are arranged parallel to each other.

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