Automatic production line and production method of bathroom non-slip mat

Abstract

This invention discloses an automated production line and method for producing bathroom anti-slip mats. After the moving mold and fixed mold are closed and injection molded to produce the anti-slip mat, the injection molding machine opens the mold. At this time, the elastic element resets and rebounds, causing the moving mold core to move away from the fixed plate. Since the end of the sliding rod away from the fixed plate is now in the clearance groove and has a distance from the groove opening that is not less than the thickness of the second clamping plate, a six-axis robot drives the clamping assembly to move so that the second clamping plate enters the clearance groove and is in contact with one side of the anti-slip mat. At this time, the anti-slip mat is between the first clamping plate and the second clamping plate. By adjusting the driving component, the first clamping plate is driven to move closer to the second clamping plate until it cooperates with the second clamping plate to clamp and fix the anti-slip mat. Then, the six-axis robot drives the clamping assembly to move along an oblique trajectory to tear the anti-slip mat off the moving mold core, thereby completing the automatic unloading of the anti-slip mat. Compared with the existing manual unloading method, this not only improves the unloading efficiency but also avoids safety accidents.

Description

Technical Field

[0001] This invention relates to the field of anti-slip mat production technology, and in particular to an automated production line and method for bathroom anti-slip mats. Background Technology

[0002] In modern family life, the bathroom is an important place for daily washing and bathing, and its safety has always been a major concern. Because the bathroom environment is damp all year round and the floor is prone to water accumulation, the risk of people slipping and falling while in the bathroom is greatly increased.

[0003] To reduce the incidence of slips and falls in the bathroom and protect people's lives, bathroom anti-slip mats have emerged. Early bathroom anti-slip products were relatively simple, mostly made of ordinary rubber or plastic. Although they had a certain anti-slip effect, they were significantly lacking in terms of stability, durability, and comfort. To improve the anti-slip performance of the product, this product features an array of suction cups on the back to adhere to and adhere to the floor, and an anti-slip texture on the front.

[0004] Because the product is made of TPE material, which has good elasticity and many suction cups on the back, the injection-molded product adheres tightly to the mold surface, making it impossible to unload using conventional ejector pins. Currently, manual unloading is used, which is not only inefficient but also poses safety hazards. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides an automatic production line and production method for bathroom anti-slip mats, so as to solve the problem that the manual feeding method for injection-molded anti-slip mats is not only inefficient, but also poses safety hazards.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic production line for bathroom anti-slip mats, comprising: An injection molding machine includes a fixed mold and a moving mold. The moving mold includes a fixed plate and a moving mold core. The moving mold core includes a peripheral area and a mold core area. At least one clearance groove is provided through the moving mold core, and the clearance groove is located in both the peripheral area and the mold core area. An elastic element is located between the fixed plate and the moving mold core; A clamping assembly, comprising a first clamping plate, a second clamping plate, and a driving member for driving the first clamping plate to move closer to or away from the second clamping plate, wherein the size of the second clamping plate is smaller than the size of the clearance groove; A six-axis robot, wherein the output end of the six-axis robot is fixedly connected to a clamping assembly; At least one sliding rod is located in the clearance groove and one end is fixed to the fixing plate. The cross-sectional size of the sliding rod is smaller than the opening size of the clearance groove. The sliding rod is located in the mold core area or simultaneously in the peripheral area and the mold core area. When the moving mold and the fixed mold are closed, the elastic element is in a compressed state, and the other end of the sliding rod is flush with the opening of the relief groove. When the moving mold and the fixed mold are opened, the elastic element is in its original length state, and the other end of the sliding rod is in the relief groove and the distance between it and the opening of the relief groove is not less than the thickness of the second clamping plate.

[0007] Preferably, the size of the second clamping plate is no larger than the size of the clearance groove in the outer perimeter area.

[0008] Preferably, the clamping assembly further includes a fixing frame, the driving component is a cylinder, at least one driving component and at least one support plate are fixedly installed on the fixing frame, a first clamping plate is fixedly installed at the output end of each driving component, and a second clamping plate is fixedly installed at one end of each support plate, with the first clamping plate and the second clamping plate facing each other.

[0009] Preferably, the moving mold further includes a movable plate, which is detachably and fixedly sleeved around at least one moving mold core. The elastic element is a spring, and the two ends of the spring are respectively fixedly connected to the movable plate and the fixed plate.

[0010] Preferably, when the second clamping plate is located in the clearance groove, the distance between the second clamping plate and the inner wall of the clearance groove is not less than 5mm.

[0011] Preferably, it also includes a conveyor belt located on one side of the injection molding machine.

[0012] Preferably, each of the moving mold cores is provided with two clearance grooves, and two driving components and two support plates are fixedly installed on the fixing frame.

[0013] A method for producing a bathroom anti-slip mat, characterized by employing the aforementioned automated production line for bathroom anti-slip mats, includes the following steps: Step 1: The moving mold and fixed mold of the injection molding machine are closed to produce the anti-slip mat. At this time, the elastic element is in the compression process. Step 2: The injection molding machine opens the mold. During the mold opening process, the elastic element gradually rebounds and moves the moving mold core away from the fixed plate. Step 3: Control the six-axis robot to drive the clamping assembly to move, so that the second clamping plate enters the clearance groove and the anti-slip pad is between the first clamping plate and the second clamping plate. Then, adjust the drive component to drive the first clamping plate to move closer to the second clamping plate so that the first clamping plate and the second clamping plate clamp and fix the anti-slip pad. Step 4: Control the six-axis robot to move the clamping assembly along the diagonal trajectory to tear the anti-slip pad off the moving mold core. The diagonal trajectory is the line connecting the corner of the mold core area with the clearance groove to the other corner diagonally opposite it. Then repeat steps one, two, three, and four.

[0014] Preferably, the direction of movement of the clamping assembly is 25° to 35° with the vertical direction of the mold parting surface.

[0015] Preferably, the movement speed of the clamping assembly includes starting at a speed of 30mm / s-80mm / s, then accelerating uniformly at an acceleration of 200mm / s²-300mm / s², accelerating to a speed of 150mm / s-250mm / s before uniformly tearing the material, and finally decelerating uniformly at an acceleration of 200mm / s²-300mm / s², stopping smoothly at a speed of 30mm / s-80mm / s.

[0016] Compared with the prior art, the beneficial effects that this invention can achieve are: In this invention, after the moving mold and fixed mold are closed and injection molded to produce the anti-slip mat, the injection molding machine opens the mold. At this time, the elastic element resets and rebounds, causing the moving mold core to move away from the fixed plate. Since the end of the sliding rod away from the fixed plate is now in the clearance groove and has a distance from the groove opening that is not less than the thickness of the second clamping plate, the clamping assembly is driven by a six-axis robot to move so that the second clamping plate enters the clearance groove and is in contact with one side of the anti-slip mat. At this time, the anti-slip mat is between the first clamping plate and the second clamping plate. By adjusting the driving component, the first clamping plate is driven to move closer to the second clamping plate until it cooperates with the second clamping plate to clamp and fix the anti-slip mat. Then, the clamping assembly is driven by a six-axis robot to move along an oblique trajectory to tear the anti-slip mat off the moving mold core, thereby completing the automatic unloading of the anti-slip mat. Compared with the existing manual unloading method, this not only improves the unloading efficiency but also avoids safety accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the automatic production line for bathroom anti-slip mats of the present invention; Figure 2 This is a schematic diagram showing the positions of the fixed plate, the moving mold core, and the movable plate when the elastic element is in its original length state during the mold opening of the moving mold and the fixed mold of the present invention. Figure 3 This is a schematic diagram showing the positions of the fixed plate, the moving mold core, and the movable plate when the elastic element is in a compressed state during the closing of the moving mold and the fixed mold of the present invention. Figure 4 This is a schematic diagram of the structure of the fixed plate, moving mold core, movable plate and anti-slip pad of the present invention; Figure 5 This is a schematic diagram of the outer perimeter area, mold core area, clearance groove, and sliding rod structure of the present invention; Figure 6 This is a schematic diagram of the clamping component structure of the present invention; The components are: 1. Moving mold; 11. Fixed plate; 12. Moving mold core; 121. Outer area; 122. Mold core area; 123. Clearance groove; 13. Movable plate; 2. Fixed mold; 3. Six-axis robot; 4. Clamping assembly; 41. Drive component; 42. First clamping plate; 43. Support plate; 44. Second clamping plate; 45. Fixed frame; 5. Elastic component; 6. Sliding rod; 7. Conveyor belt. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention is further described below in conjunction with specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this invention.

[0019] like Figures 1-6 As shown, the present invention provides an automated production line for bathroom anti-slip mats, comprising: an injection molding machine, an elastic element 5, a clamping assembly 4, a six-axis robot 3, and at least one sliding rod 6; The injection molding machine includes a fixed mold 2 and a moving mold 1. The moving mold 1 includes a fixed plate 11 and a moving mold core 12. The moving mold core 12 includes a peripheral area 121 and a mold core area 122 (the size of the mold core area 122 corresponds to the size of the anti-slip pad). At least one clearance groove 123 is provided through the moving mold core 12. The clearance groove 123 is located in both the peripheral area 121 and the mold core area 122 (e.g., ...). Figure 4 As shown, two moving mold cores 12 are set here, corresponding to two clamping components 4 and two six-axis robots 3. The two six-axis robots 3 are located on both sides of the injection molding machine, and there are also two subsequent conveyor belts 7, located on both sides of the injection molding machine, to realize the one-out-two-injection unloading process of the anti-slip pad. The elastic element 5 is located between the fixed plate 11 and the moving mold core 12; The clamping assembly 4 includes a first clamping plate 42, a second clamping plate 44, and a driving member 41 for driving the first clamping plate 42 to move closer to or further away from the second clamping plate 44. The size of the second clamping plate 44 is smaller than the size of the clearance groove 123. The output end of the six-axis robot 3 is fixedly connected to the clamping assembly 4; The sliding rod 6 is located in the clearance groove 123 and one end is fixed to the fixing plate 11. The cross-sectional size of the sliding rod 6 is smaller than the opening size of the clearance groove 123. The sliding rod 6 is located in the mold core area 122 or simultaneously in the outer periphery area 121 and the mold core area 122. When the moving mold 1 and the fixed mold 2 are closed, the elastic element 5 is in a compressed state, and the other end of the sliding rod 6 is flush with the opening of the relief groove 123 (to ensure the integrity of the injection-molded anti-slip mat product). When the moving mold 1 and the fixed mold 2 are opened, the elastic element 5 is in its original length state, and the other end of the sliding rod 6 is in the relief groove 123 and the distance between it and the opening of the relief groove 123 is not less than the thickness of the second clamping plate 44 (to ensure that the second clamping plate 44 can enter the relief groove 123). The core area 122 here is square, and the clearance groove 123 is located near one corner of the core area 122; A method for producing a bathroom anti-slip mat, using the aforementioned automated production line for bathroom anti-slip mats, includes the following steps: Step 1: The moving mold 1 and the fixed mold 2 of the injection molding machine are closed to produce the anti-slip mat. At this time, the elastic element 5 is in the compression process. Step 2: The injection molding machine opens the mold. During the mold opening process, the elastic element 5 gradually rebounds and resets, causing the moving mold core 12 to move away from the fixed plate 11 (i.e., the moving mold core 1 moves from...). Figure 3 State transition Figure 2 state); Step 3: Since the end of the sliding rod 6 away from the fixed plate 11 is now in the clearance groove 123 and there is a distance between it and the opening of the clearance groove 123 that is not less than the thickness of the second clamping plate 44, control the six-axis robot 3 to drive the clamping assembly 4 to move, so that the second clamping plate 44 enters the clearance groove 123 and the second clamping plate 44 is in contact with the anti-slip pad. The anti-slip pad is between the first clamping plate 42 and the second clamping plate 44. Then, by adjusting the drive component 41, drive the first clamping plate 42 to move closer to the second clamping plate 44 so that the first clamping plate 42 and the second clamping plate 44 clamp and fix the anti-slip pad. Step 4: Control the six-axis robot 3 to drive the clamping component 4 to move along the oblique trajectory to tear the anti-slip pad off the moving mold core 12, thereby completing the automatic unloading of the anti-slip pad. Compared with the existing manual unloading method, it not only improves the unloading efficiency, but also avoids safety accidents. The oblique trajectory is: the line connecting the corner of the mold core area 122 with the clearance groove 123 to the other corner diagonally opposite it. Then repeat steps one, two, three, and four.

[0020] Using this diagonal trajectory for unloading injection-molded anti-slip mats, compared to tearing horizontally from one side to the other symmetrical side, offers the following advantages: When tearing diagonally, the tearing force is transmitted along the diagonal direction, distributing the force evenly across the entire product surface and avoiding localized stress concentration. Simultaneously, the diagonal tearing creates a "prying" component force, more gently overcoming the adhesion between the mold and the product. This avoids the problem of concentrated tearing force on a single edge of the anti-slip mat when tearing horizontally from the symmetrical side, where the force direction is parallel to the product surface, easily leading to excessive localized stress at the edge and causing problems such as edge tearing and warping.

[0021] The tearing direction is at an angle of 25° to 35° to the vertical direction of the mold parting surface, preferably 30°. If the angle is too small, the lateral force is insufficient and it is still easy to stick to the mold. If the angle is too large, the pulling force is biased and it is easy to cause product distortion and tearing of the clamping part. Compared with the traditional vertical ejection and vertical removal, the inclined setting can make the anti-slip pad and the mold cavity gradually separate from a single point and a single side, rather than the entire surface detaching instantly. This greatly reduces the instantaneous peeling force and effectively prevents the anti-slip pad from tearing, deforming, whitening, and breaking due to concentrated force. This inclined angle can generate a lateral force on the anti-slip pad during the tearing process, destroying the vacuum adsorption force and clamping force between the product and the cavity, which significantly reduces the demolding resistance and solves the problems of sticking to the mold, whitening, penetration, and uneven ejection that are easy to occur in traditional ejection mechanisms. Regarding the tearing speed, a low-speed start, followed by a gradual increase in speed and then uniform tearing, with a final gradual deceleration to a low stop is recommended. The low-speed start can be set at 30mm / s-80mm / s (preferably 50mm / s) to separate one corner of the anti-slip pad from the mold cavity, preventing impact tearing. Then, accelerate uniformly at 200mm / s²-300mm / s² (preferably 250mm / s²) for a smooth, unimpeded, and vibration-free process, ensuring continuous peeling. Afterward, increase the speed to 150mm / s-250mm / s (preferably 200mm / s) and then tear the material at a uniform speed along the diagonal, gradually releasing the clamping force. Finally,... The product is decelerated smoothly from 200mm / s²-300mm / s² to 30mm / s-80mm / s (preferably 50mm / s) to avoid deformation or detachment caused by sudden stops. Then, the product is completely removed from the mold at a speed of 30mm / s-80mm / s and run at low speed for a short distance before coming to a complete stop to ensure stable removal. Within the total stroke, the acceleration segment accounts for 1 / 5 of the total stroke, the constant speed segment accounts for 3 / 5, and the deceleration segment accounts for 1 / 5. Through the segmented stroke ratio of short-distance acceleration, long-distance stable constant speed, and short-distance deceleration, the anti-slip mat can be peeled off smoothly without impact, tearing, or sticking to the mold.

[0022] like Figure 5 and Figure 6 As shown, the size of the second clamping plate 44 is no larger than the size of the clearance groove 123 in the outer perimeter area 121, so that when the six-axis robot 3 drives the clamping assembly 4 to move, the second clamping plate 44 enters the clearance groove 123, first in the outer perimeter area 121 and then into the mold core area 122, thereby ensuring that the second clamping plate 44 will not come into contact with the anti-slip pad on the moving mold core 12 during the process of entering the clearance groove 123, and will not be squeezed, deformed or damaged.

[0023] like Figure 6As shown, the clamping assembly 4 also includes a fixing frame 45, the driving component 41 is a cylinder, at least one driving component 41 and at least one support plate 43 are fixedly installed on the fixing frame 45, a first clamping plate 42 is fixedly installed at the output end of each driving component 41, and a second clamping plate 44 is fixedly installed at one end of each support plate 43, with the first clamping plate 42 and the second clamping plate 44 facing each other. like Figure 5 and Figure 6 As shown, each moving mold core 12 is provided with two clearance grooves 123, and two driving components 41 and two support plates 43 are fixedly installed on the fixed frame 45, thus having two first clamping plates 42 and two second clamping plates 44. By setting two first clamping plates 42 and two second clamping plates 44, the risk of the first clamping plates 42 and the second clamping plates 44 detaching and failing to pick up the product due to excessive product adsorption force can be reduced.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, the moving mold 1 also includes a movable plate 13, which is detachably and fixedly sleeved on the periphery of at least one moving mold core 12. The elastic element 5 is a spring, and the two ends of the spring are respectively fixedly connected to the movable plate 13 and the fixed plate 11. With this configuration, when different shapes of anti-slip mats need to be produced, it is only necessary to remove the moving mold core 12 from the movable plate 13 and replace it with the corresponding moving mold core 12. The disassembly and assembly are convenient, and there is no need to replace the entire moving mold 1. It also avoids the trouble of disassembling the moving mold core 12 and the elastic element 5 when the elastic element 5 is directly fixed to the moving mold core 12.

[0025] like Figure 5 and Figure 6 As shown, when the second clamping plate 44 is located in the relief groove 123, the distance between the second clamping plate 44 and the inner wall of the relief groove 123 is not less than 5mm, so as to avoid the second clamping plate 44 from colliding and being damaged with the moving mold core 12 when it moves in the relief groove 123.

[0026] like Figure 1 As shown, it also includes a conveyor belt 7, which is located on one side of the injection molding machine. After the anti-slip pad on the moving mold core 12 is clamped and torn off by the six-axis robot 3 driven by the clamping assembly 4, it is placed on the conveyor belt 7 for easy subsequent processing.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated production line for bathroom anti-slip mats, characterized in that, include: The injection molding machine includes a fixed mold (2) and a moving mold (1). The moving mold (1) includes a fixed plate (11) and a moving mold core (12). The moving mold core (12) includes a peripheral area (121) and a mold core area (122). At least one clearance groove (123) is provided through the moving mold core (12). The clearance groove (123) is located in both the peripheral area (121) and the mold core area (122). An elastic element (5) is located between a fixed plate (11) and a moving mold core (12); The clamping assembly (4) includes a first clamping plate (42), a second clamping plate (44), and a drive member (41) for driving the first clamping plate (42) to move closer to or away from the second clamping plate (44). The size of the second clamping plate (44) is smaller than the size of the clearance groove (123). A six-axis robot (3), the output end of which is fixedly connected to a clamping assembly (4); At least one sliding rod (6) is located in the relief groove (123) and one end is fixed to the fixing plate (11). The cross-sectional size of the sliding rod (6) is smaller than the opening size of the relief groove (123). The sliding rod (6) is located in the mold core area (122) or simultaneously in the outer periphery area (121) and the mold core area (122). When the moving mold (1) and the fixed mold (2) are closed, the elastic element (5) is in a compressed state, and the other end of the sliding rod (6) is flush with the opening of the relief groove (123). When the moving mold (1) and the fixed mold (2) are opened, the elastic element (5) is in its original length state, and the other end of the sliding rod (6) is in the relief groove (123) and the distance between it and the opening of the relief groove (123) is not less than the thickness of the second clamping plate (44).

2. The automatic production line for bathroom anti-slip mats according to claim 1, characterized in that: The size of the second clamping plate (44) is no larger than the size of the clearance groove (123) of the outer perimeter area (121).

3. The automatic production line for bathroom anti-slip mats according to claim 1, characterized in that: The clamping assembly (4) further includes a fixing frame (45), the driving component (41) is a cylinder, at least one driving component (41) and at least one support plate (43) are fixedly installed on the fixing frame (45), a first clamping plate (42) is fixedly installed at the output end of each driving component (41), and a second clamping plate (44) is fixedly installed at one end of each support plate (43), with the first clamping plate (42) and the second clamping plate (44) facing each other.

4. The automatic production line for bathroom anti-slip mats according to claim 1, characterized in that: The moving mold (1) also includes a movable plate (13), which is detachably and fixedly sleeved around at least one moving mold core (12). The elastic element (5) is a spring, and the two ends of the spring are respectively fixedly connected to the movable plate (13) and the fixed plate (11).

5. The automatic production line for bathroom anti-slip mats according to claim 1, characterized in that: When the second clamping plate (44) is located in the relief groove (123), the distance between the second clamping plate (44) and the inner wall of the relief groove (123) is not less than 5mm.

6. The automatic production line for bathroom anti-slip mats according to claim 1, characterized in that: It also includes a conveyor belt (7) located on one side of the injection molding machine.

7. The automatic production line for bathroom anti-slip mats according to claim 3, characterized in that: Each of the moving mold cores (12) is provided with two clearance grooves (123), and two drive components (41) and two support plates (43) are fixedly installed on the fixing frame (45).

8. A method for producing a bathroom anti-slip mat, characterized in that, The automatic production line for bathroom anti-slip mats according to any one of claims 1 to 7 includes the following steps: Step 1: The moving mold (1) and the fixed mold (2) of the injection molding machine are closed to produce the anti-slip mat. At this time, the elastic element (5) is in the compression process. Step 2: The injection molding machine opens the mold. During the mold opening process, the elastic element (5) resets and gradually rebounds, causing the moving mold core (12) to move away from the fixed plate (11); Step 3: Control the six-axis robot (3) to drive the clamping assembly (4) to move, so that the second clamping plate (44) enters the clearance groove (123) and the anti-slip pad is between the first clamping plate (42) and the second clamping plate (44). Then, by adjusting the drive component (41), drive the first clamping plate (42) to move closer to the second clamping plate (44) so ​​that the first clamping plate (42) and the second clamping plate (44) clamp and fix the anti-slip pad. Step 4: Control the six-axis robot (3) to drive the clamping assembly (4) to move along the oblique trajectory to tear the anti-slip pad off the moving mold core (12). The oblique trajectory is: the line connecting the corner of the mold core area (122) with the clearance groove (123) to the other corner diagonally opposite it. Then repeat steps one, two, three, and four.

9. The method for producing a bathroom anti-slip mat according to claim 8, characterized in that: The direction of movement of the clamping component (4) is 25° to 35° with the vertical direction of the mold parting surface.

10. The method for producing a bathroom anti-slip mat according to claim 9, characterized in that: The movement speed of the clamping component (4) includes starting at a speed of 30mm / s-80mm / s, then accelerating uniformly at an acceleration of 200mm / s²-300mm / s², accelerating to a speed of 150mm / s-250mm / s and then tearing the material at a uniform speed, and finally decelerating uniformly at an acceleration of 200mm / s²-300mm / s², and stopping smoothly at a speed of 30mm / s-80mm / s.

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