Ceramic sleeve cutting machine

Abstract

The utility model belongs to the technical field of ceramic sleeve cutting equipment, and particularly relates to a ceramic sleeve cutting machine which comprises a rack. The conveying mechanism is arranged on the rack and is used for guiding the ceramic sleeve; the cutting mechanism is arranged on the rack and used for cutting the ceramic sleeve; the adjusting mechanism is arranged on the cutting mechanism, is connected with the cutting mechanism and is used for enabling the cutting mechanism to be more stable when the cutting mechanism cuts the ceramic sleeve; the cutting mechanism is located above the conveying mechanism. The cutting device has the beneficial effects that due to the arrangement of the adjusting mechanism, the cutting stability can be improved, it is ensured that the cutting device is always kept in the optimal cutting state, and therefore the stability of the cutting process is remarkably improved, the flatness of the cutting face is further guaranteed, and the cutting quality problem caused by vibration or deviation is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of ceramic casing cutting equipment, and in particular relates to a ceramic casing cutting machine. Background Art

[0002] Ceramic bushings are tubular structures made of ceramic materials, which have the characteristics of high temperature resistance, corrosion resistance, and insulation. Ceramic bushings are often used in electronic components, chemical equipment, oil drilling equipment and other fields. Due to the characteristics of ceramic materials, ceramic bushings usually have excellent wear resistance and corrosion resistance. In the production and preparation of ceramic bushings, cutting of ceramic bushings is an important link. The current cutting process is mainly divided into mechanical cutting process and laser cutting process.

[0003] The patent with publication number CN109014386A discloses a ceramic steel pipe cutting device, which includes a fixed groove seat with a sieve plate, the side wall of the fixed groove seat supports a ceramic steel pipe workpiece through a supporting wheel, a cutting knife is provided above the ceramic steel pipe workpiece, and the four corners of the cutter seat are provided with sliding sleeves mounted on the sliding rod, the lower end of the sliding rod is fixed to the upper end of the side plate of the fixed groove seat, and the lower side of the upper end top plate is fixedly connected to the knife seat through an electric push rod, the fixed groove seat is provided with a water receiving trough below the sieve plate, the water receiving trough is connected to the input end of the pump body through a return pipe, the output end of the pump body is connected to a water supply pipe, and the water supply pipe is connected to a number of spray heads, and the side wall of the fixed groove seat above the sieve plate is respectively provided with a spray head mounting hole and a ventilation hole, and a cold air hood is fixed at the ventilation hole.

[0004] The above patent guides the cutter through a guide mechanism, effectively ensuring the flatness of the cutting surface. However, it is still not stable enough during the actual cutting process and needs to be improved. Utility Model Content

[0005] The purpose of this application is to provide a ceramic casing cutting machine that can solve the above problems.

[0006] The purpose of this application is to provide a ceramic casing cutting machine, comprising:

[0007] frame;

[0008] A conveying mechanism is provided on the frame and is used to guide the ceramic sleeve;

[0009] A cutting mechanism is provided on the frame and is used for cutting the ceramic sleeve;

[0010] An adjusting mechanism is provided on and connected to the cutting mechanism, and is used to make the cutting mechanism more stable when cutting the ceramic sleeve;

[0011] The cutting mechanism is located above the conveying mechanism.

[0012] A ceramic sleeve cutting machine as described above is used, and the frame serves as the supporting structure of the entire cutting machine to ensure that all components can be installed stably and firmly. The conveying mechanism is arranged on the frame to guide the ceramic sleeve to move along a specific path to ensure that the sleeve is in the correct position during cutting. The cutting mechanism is also arranged on the frame, above the conveying mechanism, and is used to cut the ceramic sleeve. The adjustment mechanism is connected to the cutting mechanism, which can make it more stable when cutting the ceramic sleeve and reduce vibration and deviation. At the same time, due to the setting of the adjustment mechanism, the cutting stability can be improved to ensure that it always remains in the best cutting state, thereby significantly improving the stability of the cutting process, further ensuring the flatness of the cutting surface, and reducing cutting quality problems caused by vibration or deviation.

[0013] Furthermore, the cutting mechanism includes a bracket, a cylinder arranged on the bracket, a knife seat arranged at the bottom of the cylinder, and a cutting knife arranged on the knife seat.

[0014] The bracket serves as the primary support structure for the cutting mechanism, ensuring stable installation and operation of the cylinder, blade holder, and cutter. The cylinder, mounted at the base of the bracket, uses pneumatic pressure to drive the cutter up and down, completing the cutting action. The blade holder, attached to the base of the cylinder, secures the cutter and ensures its stability during the cutting process. The cutter, mounted on the blade holder, performs the cutting operation. The cylinder's drive mechanism and interchangeable cutter blades allow the cutting mechanism to accommodate ceramic sleeves of varying specifications and materials, enhancing the versatility and flexibility of the equipment.

[0015] Further: The regulated institutions include:

[0016] Slide blocks are arranged on both sides of the knife seat;

[0017] A slide groove is provided on the bracket and adapted to the slider;

[0018] The damping structure includes a damper and a spring, wherein the damper includes a cylinder and a piston rod, and the output end of the piston rod is connected to the slider;

[0019] The two ends of the spring are respectively connected to the slider and the top of the slide groove.

[0020] The sliders are arranged on both sides of the knife holder and serve as sliding components connecting the cutting mechanism and the bracket, and can move smoothly in the slide. The slide is arranged on the bracket and adapted to the slider, providing a moving track for the slider, ensuring the stability and accuracy of the cutting mechanism during the adjustment process. The damper includes a cylinder and a piston rod, and the output end of the piston rod is connected to the slider. It can provide appropriate resistance when the slider moves, preventing the slider from moving rapidly due to vibration or impact during the cutting process, thereby maintaining the stability of the cutting mechanism. The two ends of the spring are respectively connected to the slider and the top of the slide. Its existence not only provides a reset force for the slider, but also absorbs the vibration energy during the cutting process to a certain extent, further enhancing the stability of the cutting mechanism.

[0021] Through the smooth movement of the slider within the chute, and the combined action of the damper and spring, the adjustment mechanism effectively absorbs and offsets vibration and impact during the cutting process, thereby maintaining the stability of the cutting mechanism. Simultaneously, the damper's resistance allows the slider to slowly and smoothly reach the desired position during movement, avoiding positioning inaccuracies caused by rapid movement and thus improving cutting precision. Furthermore, by adjusting the parameters of the damper and spring, the device can adapt to the cutting requirements of ceramic sleeves of different specifications and materials, enhancing the versatility and flexibility of the equipment.

[0022] Furthermore, the chute includes a guide section and a limiting section, and the limiting section is arc-shaped;

[0023] The slider includes a first block connected to the knife seat and a second block hinged to the first block;

[0024] The second block is connected to the spring, and the second block is adapted to the limiting section and can slide into the limiting section.

[0025] The guide segment, a straight section, guides the slider for smooth initial movement, ensuring linearity and accuracy during the cutting mechanism's adjustment process. The limit segment, an arc-shaped section, is designed to disperse linear force into an arc-shaped direction once the slider reaches a certain position, enabling more precise adjustment of the cutting mechanism. The limit segment also limits the slider's downward movement, ensuring stability and safety during the cutting process.

[0026] The first block is connected to the knife holder and serves as the main support for the cutting mechanism, ensuring the knife can perform cutting operations stably. The second block is hinged to the first block and can rotate at a certain angle relative to the first block. This allows the slider to flexibly adapt to changes in the arc when sliding into the limit section while maintaining the stability of the cutting mechanism. At the same time, the second block is connected to one end of a spring, and the other end of the spring is connected to the top of the slide or other fixed point. The presence of the spring provides a reset force for the slider, allowing it to return to its initial position after movement, while also absorbing vibration energy during the cutting process to a certain extent.

[0027] The design of the guide and limit sections of the chute, along with the articulated structure of the slider, allows the adjustment mechanism to effectively absorb and offset vibrations and shocks during the cutting process, thereby maintaining the stability of the cutting mechanism. Particularly within the limit section, the slider can flexibly adapt to changes in arc shape, further enhancing the stability of the cutting mechanism. The arc-shaped design of the limit section allows the slider to more precisely adjust the position of the cutting mechanism during movement, thereby improving cutting accuracy.

[0028] Furthermore, the conveying mechanism includes two sets of guide wheels arranged on the bracket, and the two sets of guide wheels are symmetrical to each other and are arranged obliquely.

[0029] Two sets of guide wheels mounted on the bracket are symmetrically and tilted, ensuring the ceramic sleeve moves more stably along the intended path during transport, preventing inaccurate cutting caused by shaking or deviation. The tilt also helps guide the ceramic sleeve smoothly into the cutting area, improving cutting efficiency.

[0030] Furthermore, the frame is also provided with a spray mechanism, including a water tank arranged at the bottom of the frame, a filter plate arranged on the water tank, the water tank is connected to a spray head through a water pipe, and the opening of the spray head faces the ceramic sleeve.

[0031] A water reservoir, located at the bottom of the frame, collects waste and debris generated during the cutting process, as well as water sprayed from the sprinkler heads. This allows for centralized processing of waste and debris, preventing environmental pollution and equipment damage. A filter plate, mounted on the reservoir, removes solid particles from the waste and debris, ensuring the cleanliness of the recovered water. This not only extends the life of the sprinkler heads but also improves water utilization. The sprinkler heads are connected to the reservoir via a water pipe, with the opening facing the ceramic sleeve. This allows water to be evenly sprayed onto the sleeve, providing cooling, cleaning, and lubrication. This helps reduce friction and heat buildup during the cutting process, improving cutting quality and efficiency.

[0032] The beneficial effects of this application are:

[0033] 1. The setting of the adjustment mechanism can improve cutting stability and ensure that it always remains in the best cutting state, thereby significantly improving the stability of the cutting process, further ensuring the flatness of the cutting surface, and reducing cutting quality problems caused by vibration or deviation;

[0034] 2. Through the smooth movement of the slider in the chute, and the combined action of the damper and spring, the adjustment mechanism can effectively absorb and offset vibrations and shocks during the cutting process, thereby maintaining the stability of the cutting mechanism. At the same time, the resistance of the damper enables the slider to move slowly and smoothly to the desired position, avoiding the problem of inaccurate positioning caused by rapid movement, thereby improving cutting accuracy;

[0035] 3. The guide section, as a straight section, is used to guide the slider to move smoothly in the initial stage, ensuring the linearity and accuracy of the cutting mechanism during adjustment. The limit section is arc-shaped and is designed to disperse the linear force into the arc direction when the slider moves to a certain position, thereby achieving more precise adjustment of the cutting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural diagram of the utility model;

[0037] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0038] Figure 3 It is a structural diagram of the regulating mechanism of the utility model.

[0039] The reference numerals in the figure are: 100, frame; 200, conveying mechanism; 210, guide wheel; 300, cutting mechanism; 310, bracket; 320, cylinder; 330, knife holder; 340, cutting knife; 400, adjusting mechanism; 410, slider; 411, first block; 412, second block; 420, slide; 421, guide section; 422, limiting section; 430, damper; 431, cylinder; 432, piston rod; 440, spring; 500, spraying mechanism; 510, water tank; 520, filter plate; 530, spray head. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0041] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0042] The ceramic casing cutting machine provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0043] Example 1:

[0044] like Figures 1 to 3 As shown, the embodiment of the present application provides a ceramic casing cutting machine, comprising:

[0045] Rack 100;

[0046] The conveying mechanism 200 is provided on the frame 100 and is used to guide the ceramic sleeve;

[0047] The cutting mechanism 300 is provided on the frame 100 and is used for cutting the ceramic sleeve;

[0048] The adjustment mechanism 400 is provided on the cutting mechanism 300 and connected to the cutting mechanism 300, and is used to make the cutting mechanism 300 more stable when cutting the ceramic sleeve;

[0049] The cutting mechanism 300 is located above the conveying mechanism 200 .

[0050] In some implementations of the embodiments of this application, Figure 1 As shown, a ceramic sleeve cutting machine as described above is used, and the frame 100 serves as the supporting structure of the entire cutting machine to ensure that all components can be stably and firmly installed. The conveying mechanism 200 is arranged on the frame 100, and is used to guide the ceramic sleeve to move along a specific path to ensure that the sleeve is in the correct position during cutting. The cutting mechanism 300 is also arranged on the frame 100, located above the conveying mechanism 200, and is used to cut the ceramic sleeve. The adjustment mechanism 400 is connected to the cutting mechanism 300, which can make it more stable when cutting the ceramic sleeve and reduce vibration and deviation. At the same time, due to the setting of the adjustment mechanism 400, the cutting stability can be improved to ensure that it always remains in the best cutting state, thereby significantly improving the stability of the cutting process, further ensuring the flatness of the cutting surface, and reducing cutting quality problems caused by vibration or deviation.

[0051] Example 2:

[0052] An embodiment of the present application provides a ceramic casing cutting machine. In addition to the above-mentioned technical features, the ceramic casing cutting machine of the embodiment of the present application also includes the following technical features.

[0053] like Figure 1 and Figure 2 As shown, the cutting mechanism 300 includes a bracket 310 , a cylinder 320 disposed on the bracket 310 , a knife seat 330 disposed at the bottom of the cylinder 320 , and a cutting knife 340 disposed on the knife seat 330 .

[0054] In an embodiment of the present application, the bracket 310 serves as the main supporting structure of the cutting mechanism 300, ensuring that the cylinder 320, the knife holder 330 and the cutting knife 340 can be stably installed and operated. The cylinder 320 is arranged at the bottom of the bracket 310, and the cutting knife 340 is driven up and down by air pressure to complete the cutting action. The knife holder 330 is connected to the bottom of the cylinder 320, and is used to fix the cutting knife 340 and ensure that the cutting knife 340 can maintain a stable posture during the cutting process. The cutting knife 340 is arranged on the knife holder 330 for performing the cutting operation. The driving mode of the cylinder 320 and the replaceability of the cutting knife 340 enable the cutting mechanism 300 to adapt to ceramic sleeves of different specifications and materials, thereby improving the versatility and flexibility of the equipment.

[0055] Example 3:

[0056] An embodiment of the present application provides a ceramic casing cutting machine. In addition to the above-mentioned technical features, the ceramic casing cutting machine of the embodiment of the present application also includes the following technical features.

[0057] like Figure 3 As shown, the adjustment mechanism 400 includes:

[0058] Sliders 410 are provided on both sides of the knife seat 330;

[0059] A slide groove 420 is provided on the bracket 310 and adapted to the slider 410;

[0060] The damping structure includes a damper 430 and a spring 440 . The damper 430 includes a cylinder 431 and a piston rod 432 . The output end of the piston rod 432 is connected to the slider 410 .

[0061] The two ends of the spring 440 are connected to the slider 410 and the top of the sliding groove 420 respectively.

[0062] In this embodiment of the present application, sliders 410 are disposed on either side of the cutter holder 330, serving as sliding components connecting the cutting mechanism 300 to the bracket 310 and capable of smooth movement within the chute 420. The chute 420, disposed on the bracket 310 and adapted to fit the slider 410, provides a movement path for the slider 410, ensuring stability and accuracy during the adjustment process of the cutting mechanism 300. The damper 430 comprises a barrel 431 and a piston rod 432, the output end of which is connected to the slider 410. This damper provides appropriate resistance during the movement of the slider 410, preventing rapid movement of the slider 410 due to vibration or impact during the cutting process, thereby maintaining the stability of the cutting mechanism 300. The spring 440, with its ends connected to the slider 410 and the top of the chute 420, respectively, not only provides a restoring force for the slider 410 but also absorbs vibration energy during the cutting process, further enhancing the stability of the cutting mechanism 300.

[0063] Through the smooth movement of the slider 410 within the chute 420, and the combined action of the damper 430 and spring 440, the adjustment mechanism 400 effectively absorbs and offsets vibrations and shocks during the cutting process, thereby maintaining the stability of the cutting mechanism 300. Simultaneously, the resistance provided by the damper 430 enables the slider 410 to slowly and smoothly reach the desired position during movement, avoiding inaccurate positioning caused by rapid movement and thus improving cutting precision. Furthermore, by adjusting the parameters of the damper 430 and spring 440, the device can be adapted to the cutting requirements of ceramic sleeves of different specifications and materials, enhancing the versatility and flexibility of the device.

[0064] Furthermore, the slide 420 includes a guide section 421 and a limiting section 422 , and the limiting section 422 is arc-shaped;

[0065] The slider 410 includes a first block 411 connected to the tool holder 330 and a second block 412 hinged to the first block 411;

[0066] The second block 412 is connected to the spring 440 , and the second block 412 is adapted to the limiting section 422 and can slide into the limiting section 422 .

[0067] The guide section 421, a straight section, is used to guide the slider 410 in its initial smooth movement, ensuring the linearity and accuracy of the cutting mechanism 300 during adjustment. The limiter section 422 is curved and designed to disperse linear force toward the curved section when the slider 410 moves to a certain position, thereby enabling more precise adjustment of the cutting mechanism 300. Furthermore, the limiter section 422 also serves to limit the downward movement of the slider 410, ensuring the stability and safety of the cutting mechanism 300 during the cutting process.

[0068] The first block 411 is connected to the knife holder 330 and serves as the main support for the cutting mechanism 300, ensuring that the cutting knife 340 can perform cutting operations stably. The second block 412 is hinged to the first block 411 and can rotate at a certain angle relative to the first block 411. This allows the slider 410 to flexibly adapt to changes in the arc shape when sliding into the limiting section 422, while maintaining the stability of the cutting mechanism 300. Furthermore, the second block 412 is connected to one end of a spring 440, the other end of which is connected to the top of the slide 420 or other fixed point. The presence of the spring 440 provides a reset force for the slider 410, allowing it to return to its initial position after movement. It also absorbs vibration energy during the cutting process to a certain extent.

[0069] Through the design of the guide section 421 and the limiting section 422 of the chute 420, as well as the hinged structure of the slider 410, the adjustment mechanism 400 can effectively absorb and offset vibrations and shocks during the cutting process, thereby maintaining the stability of the cutting mechanism 300. In particular, within the limiting section 422, the slider 410 can flexibly adapt to changes in the arc, further enhancing the stability of the cutting mechanism 300. The arc-shaped design of the limiting section 422 enables the slider 410 to more finely adjust the position of the cutting mechanism 300 during movement, thereby improving cutting accuracy.

[0070] Example 4:

[0071] An embodiment of the present application provides a ceramic casing cutting machine. In addition to the above-mentioned technical features, the ceramic casing cutting machine of the embodiment of the present application also includes the following technical features.

[0072] like Figure 1 and Figure 2 As shown, the conveying mechanism 200 includes two sets of guide wheels 210 arranged on a bracket 310, and the two sets of guide wheels 210 are symmetrical to each other and are arranged obliquely.

[0073] In this embodiment of the present application, the two sets of guide wheels 210 mounted on the bracket 310 are symmetrically and tilted, allowing the ceramic sleeve to move more stably along the predetermined path during transportation, avoiding inaccurate cutting caused by shaking or deviation. Furthermore, the tilted arrangement helps guide the ceramic sleeve smoothly into the cutting area, improving cutting efficiency.

[0074] Example 5:

[0075] An embodiment of the present application provides a ceramic casing cutting machine. In addition to the above-mentioned technical features, the ceramic casing cutting machine of the embodiment of the present application also includes the following technical features.

[0076] like Figure 2As shown, a spray mechanism 500 is also provided on the rack 100, including a water tank 510 provided at the bottom of the rack 100, a filter plate 520 provided on the water tank 510, and the water tank 510 is connected to a spray head 530 through a water pipe, and the opening of the spray head 530 faces the ceramic sleeve.

[0077] In an embodiment of the present application, a water storage tank 510 is provided at the bottom of the frame 100 for collecting waste and debris generated during the cutting process, as well as water sprayed from the spray head 530, so that waste and debris can be centrally processed, thus avoiding environmental pollution and equipment damage. A filter plate 520 is provided on the water storage tank 510 for filtering out solid particles in waste and debris, ensuring the cleanliness of the recovered water, which not only extends the service life of the spray head 530, but also improves the utilization rate of water. The spray head 530 is connected to the water storage tank 510 through a water pipe, with its opening facing the ceramic sleeve, so that water can be evenly sprayed on the ceramic sleeve, playing a role in cooling, cleaning and lubricating, helping to reduce friction and heat accumulation during the cutting process, and improving cutting quality and efficiency.

[0078] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0079] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A ceramic casing cutting machine, characterized by: include: Rack(100); A conveying mechanism (200) is provided on the frame (100) and is used to guide the ceramic sleeve; A cutting mechanism (300) is provided on the frame (100) and is used for cutting ceramic sleeves; An adjusting mechanism (400) is provided on the cutting mechanism (300) and connected to the cutting mechanism (300), and is used to make the cutting mechanism (300) more stable when cutting the ceramic sleeve; The cutting mechanism (300) is located above the conveying mechanism (200).

2. The ceramic casing cutting machine according to claim 1, characterized in that: The cutting mechanism (300) comprises a bracket (310), a cylinder (320) arranged on the bracket (310), a knife seat (330) arranged at the bottom of the cylinder (320), and a cutting knife (340) arranged on the knife seat (330).

3. The ceramic casing cutting machine according to claim 2, characterized in that: The regulating mechanism (400) comprises: Slide blocks (410) are arranged on both sides of the knife seat (330); A slide groove (420) is provided on the bracket (310) and is adapted to the slider (410); The damping structure includes a damper (430) and a spring (440), wherein the damper (430) includes a cylinder (431) and a piston rod (432), and the output end of the piston rod (432) is connected to the slider (410); The two ends of the spring (440) are respectively connected to the slider (410) and the top of the slide groove (420).

4. The ceramic casing cutting machine according to claim 3, characterized in that: The sliding groove (420) includes a guiding section (421) and a limiting section (422), and the limiting section (422) is arc-shaped; The slider (410) includes a first block (411) connected to the knife seat (330) and a second block (412) hinged to the first block (411); The second block (412) is connected to the spring (440), and the second block (412) is adapted to the limiting section (422) and can slide into the limiting section (422).

5. The ceramic casing cutting machine according to claim 4, characterized in that: The conveying mechanism (200) comprises two groups of guide wheels (210) arranged on a bracket (310), and the two groups of guide wheels (210) are symmetrical to each other and are arranged obliquely.

6. The ceramic casing cutting machine according to claim 5, characterized in that: The frame (100) is further provided with a spray mechanism (500), comprising a water storage tank (510) provided at the bottom of the frame (100), a filter plate (520) provided on the water storage tank (510), and a spray head (530) connected to the water storage tank (510) via a water pipe, with the opening of the spray head (530) facing the ceramic sleeve.

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